* michel.jaouen@stericsson.com : smp minimum support *
* *
* Copyright (C) Broadcom 2012 *
- * ehunter@broadcom.com : Cortex R4 support *
+ * ehunter@broadcom.com : Cortex-R4 support *
+ * *
+ * Copyright (C) 2013 Kamal Dasu *
+ * kdasu.kdev@gmail.com *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. *
* *
* Cortex-A8(tm) TRM, ARM DDI 0344H *
* Cortex-A9(tm) TRM, ARM DDI 0407F *
* Cortex-A4(tm) TRM, ARM DDI 0363E *
+ * Cortex-A15(tm)TRM, ARM DDI 0438C *
* *
***************************************************************************/
#include "breakpoints.h"
#include "cortex_a.h"
#include "register.h"
+#include "armv7a_mmu.h"
#include "target_request.h"
#include "target_type.h"
#include "arm_opcodes.h"
+#include "arm_semihosting.h"
+#include "transport/transport.h"
+#include "smp.h"
#include <helper/time_support.h>
-static int cortex_a8_poll(struct target *target);
-static int cortex_a8_debug_entry(struct target *target);
-static int cortex_a8_restore_context(struct target *target, bool bpwp);
-static int cortex_a8_set_breakpoint(struct target *target,
+static int cortex_a_poll(struct target *target);
+static int cortex_a_debug_entry(struct target *target);
+static int cortex_a_restore_context(struct target *target, bool bpwp);
+static int cortex_a_set_breakpoint(struct target *target,
struct breakpoint *breakpoint, uint8_t matchmode);
-static int cortex_a8_set_context_breakpoint(struct target *target,
+static int cortex_a_set_context_breakpoint(struct target *target,
struct breakpoint *breakpoint, uint8_t matchmode);
-static int cortex_a8_set_hybrid_breakpoint(struct target *target,
+static int cortex_a_set_hybrid_breakpoint(struct target *target,
struct breakpoint *breakpoint);
-static int cortex_a8_unset_breakpoint(struct target *target,
+static int cortex_a_unset_breakpoint(struct target *target,
struct breakpoint *breakpoint);
-static int cortex_a8_dap_read_coreregister_u32(struct target *target,
- uint32_t *value, int regnum);
-static int cortex_a8_dap_write_coreregister_u32(struct target *target,
- uint32_t value, int regnum);
-static int cortex_a8_mmu(struct target *target, int *enabled);
-static int cortex_a8_virt2phys(struct target *target,
- uint32_t virt, uint32_t *phys);
-static int cortex_a8_read_apb_ab_memory(struct target *target,
+static int cortex_a_mmu(struct target *target, int *enabled);
+static int cortex_a_mmu_modify(struct target *target, int enable);
+static int cortex_a_virt2phys(struct target *target,
+ target_addr_t virt, target_addr_t *phys);
+static int cortex_a_read_cpu_memory(struct target *target,
uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
/* restore cp15_control_reg at resume */
-static int cortex_a8_restore_cp15_control_reg(struct target *target)
+static int cortex_a_restore_cp15_control_reg(struct target *target)
{
int retval = ERROR_OK;
- struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
struct armv7a_common *armv7a = target_to_armv7a(target);
- if (cortex_a8->cp15_control_reg != cortex_a8->cp15_control_reg_curr) {
- cortex_a8->cp15_control_reg_curr = cortex_a8->cp15_control_reg;
- /* LOG_INFO("cp15_control_reg: %8.8" PRIx32, cortex_a8->cp15_control_reg); */
+ if (cortex_a->cp15_control_reg != cortex_a->cp15_control_reg_curr) {
+ cortex_a->cp15_control_reg_curr = cortex_a->cp15_control_reg;
+ /* LOG_INFO("cp15_control_reg: %8.8" PRIx32, cortex_a->cp15_control_reg); */
retval = armv7a->arm.mcr(target, 15,
0, 0, /* op1, op2 */
1, 0, /* CRn, CRm */
- cortex_a8->cp15_control_reg);
+ cortex_a->cp15_control_reg);
}
return retval;
}
-/* check address before cortex_a8_apb read write access with mmu on
- * remove apb predictible data abort */
-static int cortex_a8_check_address(struct target *target, uint32_t address)
+/*
+ * Set up ARM core for memory access.
+ * If !phys_access, switch to SVC mode and make sure MMU is on
+ * If phys_access, switch off mmu
+ */
+static int cortex_a_prep_memaccess(struct target *target, int phys_access)
{
struct armv7a_common *armv7a = target_to_armv7a(target);
- struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
- uint32_t os_border = armv7a->armv7a_mmu.os_border;
- if ((address < os_border) &&
- (armv7a->arm.core_mode == ARM_MODE_SVC)) {
- LOG_ERROR("%x access in userspace and target in supervisor", address);
- return ERROR_FAIL;
- }
- if ((address >= os_border) &&
- (cortex_a8->curr_mode != ARM_MODE_SVC)) {
- dpm_modeswitch(&armv7a->dpm, ARM_MODE_SVC);
- cortex_a8->curr_mode = ARM_MODE_SVC;
- LOG_INFO("%x access in kernel space and target not in supervisor",
- address);
- return ERROR_OK;
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
+ int mmu_enabled = 0;
+
+ if (phys_access == 0) {
+ arm_dpm_modeswitch(&armv7a->dpm, ARM_MODE_SVC);
+ cortex_a_mmu(target, &mmu_enabled);
+ if (mmu_enabled)
+ cortex_a_mmu_modify(target, 1);
+ if (cortex_a->dacrfixup_mode == CORTEX_A_DACRFIXUP_ON) {
+ /* overwrite DACR to all-manager */
+ armv7a->arm.mcr(target, 15,
+ 0, 0, 3, 0,
+ 0xFFFFFFFF);
+ }
+ } else {
+ cortex_a_mmu(target, &mmu_enabled);
+ if (mmu_enabled)
+ cortex_a_mmu_modify(target, 0);
}
- if ((address < os_border) &&
- (cortex_a8->curr_mode == ARM_MODE_SVC)) {
- dpm_modeswitch(&armv7a->dpm, ARM_MODE_ANY);
- cortex_a8->curr_mode = ARM_MODE_ANY;
+ return ERROR_OK;
+}
+
+/*
+ * Restore ARM core after memory access.
+ * If !phys_access, switch to previous mode
+ * If phys_access, restore MMU setting
+ */
+static int cortex_a_post_memaccess(struct target *target, int phys_access)
+{
+ struct armv7a_common *armv7a = target_to_armv7a(target);
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
+
+ if (phys_access == 0) {
+ if (cortex_a->dacrfixup_mode == CORTEX_A_DACRFIXUP_ON) {
+ /* restore */
+ armv7a->arm.mcr(target, 15,
+ 0, 0, 3, 0,
+ cortex_a->cp15_dacr_reg);
+ }
+ arm_dpm_modeswitch(&armv7a->dpm, ARM_MODE_ANY);
+ } else {
+ int mmu_enabled = 0;
+ cortex_a_mmu(target, &mmu_enabled);
+ if (mmu_enabled)
+ cortex_a_mmu_modify(target, 1);
}
return ERROR_OK;
}
+
+
/* modify cp15_control_reg in order to enable or disable mmu for :
* - virt2phys address conversion
* - read or write memory in phys or virt address */
-static int cortex_a8_mmu_modify(struct target *target, int enable)
+static int cortex_a_mmu_modify(struct target *target, int enable)
{
- struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
struct armv7a_common *armv7a = target_to_armv7a(target);
int retval = ERROR_OK;
+ int need_write = 0;
+
if (enable) {
/* if mmu enabled at target stop and mmu not enable */
- if (!(cortex_a8->cp15_control_reg & 0x1U)) {
+ if (!(cortex_a->cp15_control_reg & 0x1U)) {
LOG_ERROR("trying to enable mmu on target stopped with mmu disable");
return ERROR_FAIL;
}
- if (!(cortex_a8->cp15_control_reg_curr & 0x1U)) {
- cortex_a8->cp15_control_reg_curr |= 0x1U;
- retval = armv7a->arm.mcr(target, 15,
- 0, 0, /* op1, op2 */
- 1, 0, /* CRn, CRm */
- cortex_a8->cp15_control_reg_curr);
+ if ((cortex_a->cp15_control_reg_curr & 0x1U) == 0) {
+ cortex_a->cp15_control_reg_curr |= 0x1U;
+ need_write = 1;
}
} else {
- if (cortex_a8->cp15_control_reg_curr & 0x4U) {
- /* data cache is active */
- cortex_a8->cp15_control_reg_curr &= ~0x4U;
- /* flush data cache armv7 function to be called */
- if (armv7a->armv7a_mmu.armv7a_cache.flush_all_data_cache)
- armv7a->armv7a_mmu.armv7a_cache.flush_all_data_cache(target);
- }
- if ((cortex_a8->cp15_control_reg_curr & 0x1U)) {
- cortex_a8->cp15_control_reg_curr &= ~0x1U;
- retval = armv7a->arm.mcr(target, 15,
- 0, 0, /* op1, op2 */
- 1, 0, /* CRn, CRm */
- cortex_a8->cp15_control_reg_curr);
+ if ((cortex_a->cp15_control_reg_curr & 0x1U) == 0x1U) {
+ cortex_a->cp15_control_reg_curr &= ~0x1U;
+ need_write = 1;
}
}
+
+ if (need_write) {
+ LOG_DEBUG("%s, writing cp15 ctrl: %" PRIx32,
+ enable ? "enable mmu" : "disable mmu",
+ cortex_a->cp15_control_reg_curr);
+
+ retval = armv7a->arm.mcr(target, 15,
+ 0, 0, /* op1, op2 */
+ 1, 0, /* CRn, CRm */
+ cortex_a->cp15_control_reg_curr);
+ }
return retval;
}
/*
- * Cortex-A8 Basic debug access, very low level assumes state is saved
+ * Cortex-A Basic debug access, very low level assumes state is saved
*/
-static int cortex_a8_init_debug_access(struct target *target)
+static int cortex_a_init_debug_access(struct target *target)
{
struct armv7a_common *armv7a = target_to_armv7a(target);
- struct adiv5_dap *swjdp = armv7a->arm.dap;
+ uint32_t dscr;
int retval;
- uint32_t dummy;
- LOG_DEBUG(" ");
+ /* lock memory-mapped access to debug registers to prevent
+ * software interference */
+ retval = mem_ap_write_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_LOCKACCESS, 0);
+ if (retval != ERROR_OK)
+ return retval;
- /* Unlocking the debug registers for modification
- * The debugport might be uninitialised so try twice */
- retval = mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_LOCKACCESS, 0xC5ACCE55);
- if (retval != ERROR_OK) {
- /* try again */
- retval = mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_LOCKACCESS, 0xC5ACCE55);
- if (retval == ERROR_OK)
- LOG_USER(
- "Locking debug access failed on first, but succeeded on second try.");
- }
+ /* Disable cacheline fills and force cache write-through in debug state */
+ retval = mem_ap_write_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DSCCR, 0);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Disable TLB lookup and refill/eviction in debug state */
+ retval = mem_ap_write_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DSMCR, 0);
if (retval != ERROR_OK)
return retval;
- /* Clear Sticky Power Down status Bit in PRSR to enable access to
- the registers in the Core Power Domain */
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_PRSR, &dummy);
+
+ retval = dap_run(armv7a->debug_ap->dap);
if (retval != ERROR_OK)
return retval;
/* Resync breakpoint registers */
+ /* Enable halt for breakpoint, watchpoint and vector catch */
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DSCR, &dscr);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DSCR, dscr | DSCR_HALT_DBG_MODE);
+ if (retval != ERROR_OK)
+ return retval;
+
/* Since this is likely called from init or reset, update target state information*/
- return cortex_a8_poll(target);
+ return cortex_a_poll(target);
+}
+
+static int cortex_a_wait_instrcmpl(struct target *target, uint32_t *dscr, bool force)
+{
+ /* Waits until InstrCmpl_l becomes 1, indicating instruction is done.
+ * Writes final value of DSCR into *dscr. Pass force to force always
+ * reading DSCR at least once. */
+ struct armv7a_common *armv7a = target_to_armv7a(target);
+ int64_t then = timeval_ms();
+ while ((*dscr & DSCR_INSTR_COMP) == 0 || force) {
+ force = false;
+ int retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DSCR, dscr);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("Could not read DSCR register");
+ return retval;
+ }
+ if (timeval_ms() > then + 1000) {
+ LOG_ERROR("Timeout waiting for InstrCompl=1");
+ return ERROR_FAIL;
+ }
+ }
+ return ERROR_OK;
}
/* To reduce needless round-trips, pass in a pointer to the current
* value on return from this function; or DSCR_INSTR_COMP if you
* happen to know that no instruction is pending.
*/
-static int cortex_a8_exec_opcode(struct target *target,
+static int cortex_a_exec_opcode(struct target *target,
uint32_t opcode, uint32_t *dscr_p)
{
uint32_t dscr;
int retval;
struct armv7a_common *armv7a = target_to_armv7a(target);
- struct adiv5_dap *swjdp = armv7a->arm.dap;
dscr = dscr_p ? *dscr_p : 0;
LOG_DEBUG("exec opcode 0x%08" PRIx32, opcode);
/* Wait for InstrCompl bit to be set */
- long long then = timeval_ms();
- while ((dscr & DSCR_INSTR_COMP) == 0) {
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, &dscr);
- if (retval != ERROR_OK) {
- LOG_ERROR("Could not read DSCR register, opcode = 0x%08" PRIx32, opcode);
- return retval;
- }
- if (timeval_ms() > then + 1000) {
- LOG_ERROR("Timeout waiting for cortex_a8_exec_opcode");
- return ERROR_FAIL;
- }
- }
+ retval = cortex_a_wait_instrcmpl(target, dscr_p, false);
+ if (retval != ERROR_OK)
+ return retval;
- retval = mem_ap_sel_write_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_write_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_ITR, opcode);
if (retval != ERROR_OK)
return retval;
- then = timeval_ms();
+ int64_t then = timeval_ms();
do {
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_DSCR, &dscr);
if (retval != ERROR_OK) {
LOG_ERROR("Could not read DSCR register");
return retval;
}
if (timeval_ms() > then + 1000) {
- LOG_ERROR("Timeout waiting for cortex_a8_exec_opcode");
+ LOG_ERROR("Timeout waiting for cortex_a_exec_opcode");
return ERROR_FAIL;
}
} while ((dscr & DSCR_INSTR_COMP) == 0); /* Wait for InstrCompl bit to be set */
return retval;
}
-/**************************************************************************
-Read core register with very few exec_opcode, fast but needs work_area.
-This can cause problems with MMU active.
-**************************************************************************/
-static int cortex_a8_read_regs_through_mem(struct target *target, uint32_t address,
- uint32_t *regfile)
-{
- int retval = ERROR_OK;
- struct armv7a_common *armv7a = target_to_armv7a(target);
- struct adiv5_dap *swjdp = armv7a->arm.dap;
-
- retval = cortex_a8_dap_read_coreregister_u32(target, regfile, 0);
- if (retval != ERROR_OK)
- return retval;
- retval = cortex_a8_dap_write_coreregister_u32(target, address, 0);
- if (retval != ERROR_OK)
- return retval;
- retval = cortex_a8_exec_opcode(target, ARMV4_5_STMIA(0, 0xFFFE, 0, 0), NULL);
- if (retval != ERROR_OK)
- return retval;
-
- retval = mem_ap_sel_read_buf_u32(swjdp, armv7a->memory_ap,
- (uint8_t *)(®file[1]), 4*15, address);
-
- return retval;
-}
-
-static int cortex_a8_dap_read_coreregister_u32(struct target *target,
- uint32_t *value, int regnum)
-{
- int retval = ERROR_OK;
- uint8_t reg = regnum&0xFF;
- uint32_t dscr = 0;
- struct armv7a_common *armv7a = target_to_armv7a(target);
- struct adiv5_dap *swjdp = armv7a->arm.dap;
-
- if (reg > 17)
- return retval;
-
- if (reg < 15) {
- /* Rn to DCCTX, "MCR p14, 0, Rn, c0, c5, 0" 0xEE00nE15 */
- retval = cortex_a8_exec_opcode(target,
- ARMV4_5_MCR(14, 0, reg, 0, 5, 0),
- &dscr);
- if (retval != ERROR_OK)
- return retval;
- } else if (reg == 15) {
- /* "MOV r0, r15"; then move r0 to DCCTX */
- retval = cortex_a8_exec_opcode(target, 0xE1A0000F, &dscr);
- if (retval != ERROR_OK)
- return retval;
- retval = cortex_a8_exec_opcode(target,
- ARMV4_5_MCR(14, 0, 0, 0, 5, 0),
- &dscr);
- if (retval != ERROR_OK)
- return retval;
- } else {
- /* "MRS r0, CPSR" or "MRS r0, SPSR"
- * then move r0 to DCCTX
- */
- retval = cortex_a8_exec_opcode(target, ARMV4_5_MRS(0, reg & 1), &dscr);
- if (retval != ERROR_OK)
- return retval;
- retval = cortex_a8_exec_opcode(target,
- ARMV4_5_MCR(14, 0, 0, 0, 5, 0),
- &dscr);
- if (retval != ERROR_OK)
- return retval;
- }
-
- /* Wait for DTRRXfull then read DTRRTX */
- long long then = timeval_ms();
- while ((dscr & DSCR_DTR_TX_FULL) == 0) {
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, &dscr);
- if (retval != ERROR_OK)
- return retval;
- if (timeval_ms() > then + 1000) {
- LOG_ERROR("Timeout waiting for cortex_a8_exec_opcode");
- return ERROR_FAIL;
- }
- }
-
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DTRTX, value);
- LOG_DEBUG("read DCC 0x%08" PRIx32, *value);
-
- return retval;
-}
-
-static int cortex_a8_dap_write_coreregister_u32(struct target *target,
- uint32_t value, int regnum)
-{
- int retval = ERROR_OK;
- uint8_t Rd = regnum&0xFF;
- uint32_t dscr;
- struct armv7a_common *armv7a = target_to_armv7a(target);
- struct adiv5_dap *swjdp = armv7a->arm.dap;
-
- LOG_DEBUG("register %i, value 0x%08" PRIx32, regnum, value);
-
- /* Check that DCCRX is not full */
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, &dscr);
- if (retval != ERROR_OK)
- return retval;
- if (dscr & DSCR_DTR_RX_FULL) {
- LOG_ERROR("DSCR_DTR_RX_FULL, dscr 0x%08" PRIx32, dscr);
- /* Clear DCCRX with MRC(p14, 0, Rd, c0, c5, 0), opcode 0xEE100E15 */
- retval = cortex_a8_exec_opcode(target, ARMV4_5_MRC(14, 0, 0, 0, 5, 0),
- &dscr);
- if (retval != ERROR_OK)
- return retval;
- }
-
- if (Rd > 17)
- return retval;
-
- /* Write DTRRX ... sets DSCR.DTRRXfull but exec_opcode() won't care */
- LOG_DEBUG("write DCC 0x%08" PRIx32, value);
- retval = mem_ap_sel_write_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DTRRX, value);
- if (retval != ERROR_OK)
- return retval;
-
- if (Rd < 15) {
- /* DCCRX to Rn, "MRC p14, 0, Rn, c0, c5, 0", 0xEE10nE15 */
- retval = cortex_a8_exec_opcode(target, ARMV4_5_MRC(14, 0, Rd, 0, 5, 0),
- &dscr);
-
- if (retval != ERROR_OK)
- return retval;
- } else if (Rd == 15) {
- /* DCCRX to R0, "MRC p14, 0, R0, c0, c5, 0", 0xEE100E15
- * then "mov r15, r0"
- */
- retval = cortex_a8_exec_opcode(target, ARMV4_5_MRC(14, 0, 0, 0, 5, 0),
- &dscr);
- if (retval != ERROR_OK)
- return retval;
- retval = cortex_a8_exec_opcode(target, 0xE1A0F000, &dscr);
- if (retval != ERROR_OK)
- return retval;
- } else {
- /* DCCRX to R0, "MRC p14, 0, R0, c0, c5, 0", 0xEE100E15
- * then "MSR CPSR_cxsf, r0" or "MSR SPSR_cxsf, r0" (all fields)
- */
- retval = cortex_a8_exec_opcode(target, ARMV4_5_MRC(14, 0, 0, 0, 5, 0),
- &dscr);
- if (retval != ERROR_OK)
- return retval;
- retval = cortex_a8_exec_opcode(target, ARMV4_5_MSR_GP(0, 0xF, Rd & 1),
- &dscr);
- if (retval != ERROR_OK)
- return retval;
-
- /* "Prefetch flush" after modifying execution status in CPSR */
- if (Rd == 16) {
- retval = cortex_a8_exec_opcode(target,
- ARMV4_5_MCR(15, 0, 0, 7, 5, 4),
- &dscr);
- if (retval != ERROR_OK)
- return retval;
- }
- }
-
- return retval;
-}
-
/* Write to memory mapped registers directly with no cache or mmu handling */
-static int cortex_a8_dap_write_memap_register_u32(struct target *target,
+static int cortex_a_dap_write_memap_register_u32(struct target *target,
uint32_t address,
uint32_t value)
{
int retval;
struct armv7a_common *armv7a = target_to_armv7a(target);
- struct adiv5_dap *swjdp = armv7a->arm.dap;
- retval = mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap, address, value);
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap, address, value);
return retval;
}
/*
- * Cortex-A8 implementation of Debug Programmer's Model
+ * Cortex-A implementation of Debug Programmer's Model
*
* NOTE the invariant: these routines return with DSCR_INSTR_COMP set,
* so there's no need to poll for it before executing an instruction.
* be the places to enable/disable that mode.
*/
-static inline struct cortex_a8_common *dpm_to_a8(struct arm_dpm *dpm)
+static inline struct cortex_a_common *dpm_to_a(struct arm_dpm *dpm)
{
- return container_of(dpm, struct cortex_a8_common, armv7a_common.dpm);
+ return container_of(dpm, struct cortex_a_common, armv7a_common.dpm);
}
-static int cortex_a8_write_dcc(struct cortex_a8_common *a8, uint32_t data)
+static int cortex_a_write_dcc(struct cortex_a_common *a, uint32_t data)
{
LOG_DEBUG("write DCC 0x%08" PRIx32, data);
- return mem_ap_sel_write_u32(a8->armv7a_common.arm.dap,
- a8->armv7a_common.debug_ap, a8->armv7a_common.debug_base + CPUDBG_DTRRX, data);
+ return mem_ap_write_u32(a->armv7a_common.debug_ap,
+ a->armv7a_common.debug_base + CPUDBG_DTRRX, data);
}
-static int cortex_a8_read_dcc(struct cortex_a8_common *a8, uint32_t *data,
+static int cortex_a_read_dcc(struct cortex_a_common *a, uint32_t *data,
uint32_t *dscr_p)
{
- struct adiv5_dap *swjdp = a8->armv7a_common.arm.dap;
uint32_t dscr = DSCR_INSTR_COMP;
int retval;
dscr = *dscr_p;
/* Wait for DTRRXfull */
- long long then = timeval_ms();
+ int64_t then = timeval_ms();
while ((dscr & DSCR_DTR_TX_FULL) == 0) {
- retval = mem_ap_sel_read_atomic_u32(swjdp, a8->armv7a_common.debug_ap,
- a8->armv7a_common.debug_base + CPUDBG_DSCR,
+ retval = mem_ap_read_atomic_u32(a->armv7a_common.debug_ap,
+ a->armv7a_common.debug_base + CPUDBG_DSCR,
&dscr);
if (retval != ERROR_OK)
return retval;
}
}
- retval = mem_ap_sel_read_atomic_u32(swjdp, a8->armv7a_common.debug_ap,
- a8->armv7a_common.debug_base + CPUDBG_DTRTX, data);
+ retval = mem_ap_read_atomic_u32(a->armv7a_common.debug_ap,
+ a->armv7a_common.debug_base + CPUDBG_DTRTX, data);
if (retval != ERROR_OK)
return retval;
/* LOG_DEBUG("read DCC 0x%08" PRIx32, *data); */
return retval;
}
-static int cortex_a8_dpm_prepare(struct arm_dpm *dpm)
+static int cortex_a_dpm_prepare(struct arm_dpm *dpm)
{
- struct cortex_a8_common *a8 = dpm_to_a8(dpm);
- struct adiv5_dap *swjdp = a8->armv7a_common.arm.dap;
+ struct cortex_a_common *a = dpm_to_a(dpm);
uint32_t dscr;
int retval;
/* set up invariant: INSTR_COMP is set after ever DPM operation */
- long long then = timeval_ms();
+ int64_t then = timeval_ms();
for (;; ) {
- retval = mem_ap_sel_read_atomic_u32(swjdp, a8->armv7a_common.debug_ap,
- a8->armv7a_common.debug_base + CPUDBG_DSCR,
+ retval = mem_ap_read_atomic_u32(a->armv7a_common.debug_ap,
+ a->armv7a_common.debug_base + CPUDBG_DSCR,
&dscr);
if (retval != ERROR_OK)
return retval;
if (dscr & DSCR_DTR_RX_FULL) {
LOG_ERROR("DSCR_DTR_RX_FULL, dscr 0x%08" PRIx32, dscr);
/* Clear DCCRX */
- retval = cortex_a8_exec_opcode(
- a8->armv7a_common.arm.target,
+ retval = cortex_a_exec_opcode(
+ a->armv7a_common.arm.target,
ARMV4_5_MRC(14, 0, 0, 0, 5, 0),
&dscr);
if (retval != ERROR_OK)
return retval;
}
-static int cortex_a8_dpm_finish(struct arm_dpm *dpm)
+static int cortex_a_dpm_finish(struct arm_dpm *dpm)
{
/* REVISIT what could be done here? */
return ERROR_OK;
}
-static int cortex_a8_instr_write_data_dcc(struct arm_dpm *dpm,
+static int cortex_a_instr_write_data_dcc(struct arm_dpm *dpm,
uint32_t opcode, uint32_t data)
{
- struct cortex_a8_common *a8 = dpm_to_a8(dpm);
+ struct cortex_a_common *a = dpm_to_a(dpm);
int retval;
uint32_t dscr = DSCR_INSTR_COMP;
- retval = cortex_a8_write_dcc(a8, data);
+ retval = cortex_a_write_dcc(a, data);
if (retval != ERROR_OK)
return retval;
- return cortex_a8_exec_opcode(
- a8->armv7a_common.arm.target,
+ return cortex_a_exec_opcode(
+ a->armv7a_common.arm.target,
opcode,
&dscr);
}
-static int cortex_a8_instr_write_data_r0(struct arm_dpm *dpm,
+static int cortex_a_instr_write_data_r0(struct arm_dpm *dpm,
uint32_t opcode, uint32_t data)
{
- struct cortex_a8_common *a8 = dpm_to_a8(dpm);
+ struct cortex_a_common *a = dpm_to_a(dpm);
uint32_t dscr = DSCR_INSTR_COMP;
int retval;
- retval = cortex_a8_write_dcc(a8, data);
+ retval = cortex_a_write_dcc(a, data);
if (retval != ERROR_OK)
return retval;
/* DCCRX to R0, "MCR p14, 0, R0, c0, c5, 0", 0xEE000E15 */
- retval = cortex_a8_exec_opcode(
- a8->armv7a_common.arm.target,
+ retval = cortex_a_exec_opcode(
+ a->armv7a_common.arm.target,
ARMV4_5_MRC(14, 0, 0, 0, 5, 0),
&dscr);
if (retval != ERROR_OK)
return retval;
/* then the opcode, taking data from R0 */
- retval = cortex_a8_exec_opcode(
- a8->armv7a_common.arm.target,
+ retval = cortex_a_exec_opcode(
+ a->armv7a_common.arm.target,
opcode,
&dscr);
return retval;
}
-static int cortex_a8_instr_cpsr_sync(struct arm_dpm *dpm)
+static int cortex_a_instr_cpsr_sync(struct arm_dpm *dpm)
{
struct target *target = dpm->arm->target;
uint32_t dscr = DSCR_INSTR_COMP;
/* "Prefetch flush" after modifying execution status in CPSR */
- return cortex_a8_exec_opcode(target,
+ return cortex_a_exec_opcode(target,
ARMV4_5_MCR(15, 0, 0, 7, 5, 4),
&dscr);
}
-static int cortex_a8_instr_read_data_dcc(struct arm_dpm *dpm,
+static int cortex_a_instr_read_data_dcc(struct arm_dpm *dpm,
uint32_t opcode, uint32_t *data)
{
- struct cortex_a8_common *a8 = dpm_to_a8(dpm);
+ struct cortex_a_common *a = dpm_to_a(dpm);
int retval;
uint32_t dscr = DSCR_INSTR_COMP;
/* the opcode, writing data to DCC */
- retval = cortex_a8_exec_opcode(
- a8->armv7a_common.arm.target,
+ retval = cortex_a_exec_opcode(
+ a->armv7a_common.arm.target,
opcode,
&dscr);
if (retval != ERROR_OK)
return retval;
- return cortex_a8_read_dcc(a8, data, &dscr);
+ return cortex_a_read_dcc(a, data, &dscr);
}
-static int cortex_a8_instr_read_data_r0(struct arm_dpm *dpm,
+static int cortex_a_instr_read_data_r0(struct arm_dpm *dpm,
uint32_t opcode, uint32_t *data)
{
- struct cortex_a8_common *a8 = dpm_to_a8(dpm);
+ struct cortex_a_common *a = dpm_to_a(dpm);
uint32_t dscr = DSCR_INSTR_COMP;
int retval;
/* the opcode, writing data to R0 */
- retval = cortex_a8_exec_opcode(
- a8->armv7a_common.arm.target,
+ retval = cortex_a_exec_opcode(
+ a->armv7a_common.arm.target,
opcode,
&dscr);
if (retval != ERROR_OK)
return retval;
/* write R0 to DCC */
- retval = cortex_a8_exec_opcode(
- a8->armv7a_common.arm.target,
+ retval = cortex_a_exec_opcode(
+ a->armv7a_common.arm.target,
ARMV4_5_MCR(14, 0, 0, 0, 5, 0),
&dscr);
if (retval != ERROR_OK)
return retval;
- return cortex_a8_read_dcc(a8, data, &dscr);
+ return cortex_a_read_dcc(a, data, &dscr);
}
-static int cortex_a8_bpwp_enable(struct arm_dpm *dpm, unsigned index_t,
+static int cortex_a_bpwp_enable(struct arm_dpm *dpm, unsigned index_t,
uint32_t addr, uint32_t control)
{
- struct cortex_a8_common *a8 = dpm_to_a8(dpm);
- uint32_t vr = a8->armv7a_common.debug_base;
- uint32_t cr = a8->armv7a_common.debug_base;
+ struct cortex_a_common *a = dpm_to_a(dpm);
+ uint32_t vr = a->armv7a_common.debug_base;
+ uint32_t cr = a->armv7a_common.debug_base;
int retval;
switch (index_t) {
vr += 4 * index_t;
cr += 4 * index_t;
- LOG_DEBUG("A8: bpwp enable, vr %08x cr %08x",
+ LOG_DEBUG("A: bpwp enable, vr %08x cr %08x",
(unsigned) vr, (unsigned) cr);
- retval = cortex_a8_dap_write_memap_register_u32(dpm->arm->target,
+ retval = cortex_a_dap_write_memap_register_u32(dpm->arm->target,
vr, addr);
if (retval != ERROR_OK)
return retval;
- retval = cortex_a8_dap_write_memap_register_u32(dpm->arm->target,
+ retval = cortex_a_dap_write_memap_register_u32(dpm->arm->target,
cr, control);
return retval;
}
-static int cortex_a8_bpwp_disable(struct arm_dpm *dpm, unsigned index_t)
+static int cortex_a_bpwp_disable(struct arm_dpm *dpm, unsigned index_t)
{
- struct cortex_a8_common *a8 = dpm_to_a8(dpm);
+ struct cortex_a_common *a = dpm_to_a(dpm);
uint32_t cr;
switch (index_t) {
case 0 ... 15:
- cr = a8->armv7a_common.debug_base + CPUDBG_BCR_BASE;
+ cr = a->armv7a_common.debug_base + CPUDBG_BCR_BASE;
break;
case 16 ... 31:
- cr = a8->armv7a_common.debug_base + CPUDBG_WCR_BASE;
+ cr = a->armv7a_common.debug_base + CPUDBG_WCR_BASE;
index_t -= 16;
break;
default:
}
cr += 4 * index_t;
- LOG_DEBUG("A8: bpwp disable, cr %08x", (unsigned) cr);
+ LOG_DEBUG("A: bpwp disable, cr %08x", (unsigned) cr);
/* clear control register */
- return cortex_a8_dap_write_memap_register_u32(dpm->arm->target, cr, 0);
+ return cortex_a_dap_write_memap_register_u32(dpm->arm->target, cr, 0);
}
-static int cortex_a8_dpm_setup(struct cortex_a8_common *a8, uint32_t didr)
+static int cortex_a_dpm_setup(struct cortex_a_common *a, uint32_t didr)
{
- struct arm_dpm *dpm = &a8->armv7a_common.dpm;
+ struct arm_dpm *dpm = &a->armv7a_common.dpm;
int retval;
- dpm->arm = &a8->armv7a_common.arm;
+ dpm->arm = &a->armv7a_common.arm;
dpm->didr = didr;
- dpm->prepare = cortex_a8_dpm_prepare;
- dpm->finish = cortex_a8_dpm_finish;
+ dpm->prepare = cortex_a_dpm_prepare;
+ dpm->finish = cortex_a_dpm_finish;
- dpm->instr_write_data_dcc = cortex_a8_instr_write_data_dcc;
- dpm->instr_write_data_r0 = cortex_a8_instr_write_data_r0;
- dpm->instr_cpsr_sync = cortex_a8_instr_cpsr_sync;
+ dpm->instr_write_data_dcc = cortex_a_instr_write_data_dcc;
+ dpm->instr_write_data_r0 = cortex_a_instr_write_data_r0;
+ dpm->instr_cpsr_sync = cortex_a_instr_cpsr_sync;
- dpm->instr_read_data_dcc = cortex_a8_instr_read_data_dcc;
- dpm->instr_read_data_r0 = cortex_a8_instr_read_data_r0;
+ dpm->instr_read_data_dcc = cortex_a_instr_read_data_dcc;
+ dpm->instr_read_data_r0 = cortex_a_instr_read_data_r0;
- dpm->bpwp_enable = cortex_a8_bpwp_enable;
- dpm->bpwp_disable = cortex_a8_bpwp_disable;
+ dpm->bpwp_enable = cortex_a_bpwp_enable;
+ dpm->bpwp_disable = cortex_a_bpwp_disable;
retval = arm_dpm_setup(dpm);
if (retval == ERROR_OK)
return retval;
}
-static struct target *get_cortex_a8(struct target *target, int32_t coreid)
+static struct target *get_cortex_a(struct target *target, int32_t coreid)
{
struct target_list *head;
struct target *curr;
}
return target;
}
-static int cortex_a8_halt(struct target *target);
+static int cortex_a_halt(struct target *target);
-static int cortex_a8_halt_smp(struct target *target)
+static int cortex_a_halt_smp(struct target *target)
{
int retval = 0;
struct target_list *head;
head = target->head;
while (head != (struct target_list *)NULL) {
curr = head->target;
- if ((curr != target) && (curr->state != TARGET_HALTED))
- retval += cortex_a8_halt(curr);
+ if ((curr != target) && (curr->state != TARGET_HALTED)
+ && target_was_examined(curr))
+ retval += cortex_a_halt(curr);
head = head->next;
}
return retval;
static int update_halt_gdb(struct target *target)
{
+ struct target *gdb_target = NULL;
+ struct target_list *head;
+ struct target *curr;
int retval = 0;
- if (target->gdb_service->core[0] == -1) {
+
+ if (target->gdb_service && target->gdb_service->core[0] == -1) {
target->gdb_service->target = target;
target->gdb_service->core[0] = target->coreid;
- retval += cortex_a8_halt_smp(target);
+ retval += cortex_a_halt_smp(target);
}
+
+ if (target->gdb_service)
+ gdb_target = target->gdb_service->target;
+
+ foreach_smp_target(head, target->head) {
+ curr = head->target;
+ /* skip calling context */
+ if (curr == target)
+ continue;
+ if (!target_was_examined(curr))
+ continue;
+ /* skip targets that were already halted */
+ if (curr->state == TARGET_HALTED)
+ continue;
+ /* Skip gdb_target; it alerts GDB so has to be polled as last one */
+ if (curr == gdb_target)
+ continue;
+
+ /* avoid recursion in cortex_a_poll() */
+ curr->smp = 0;
+ cortex_a_poll(curr);
+ curr->smp = 1;
+ }
+
+ /* after all targets were updated, poll the gdb serving target */
+ if (gdb_target != NULL && gdb_target != target)
+ cortex_a_poll(gdb_target);
return retval;
}
/*
- * Cortex-A8 Run control
+ * Cortex-A Run control
*/
-static int cortex_a8_poll(struct target *target)
+static int cortex_a_poll(struct target *target)
{
int retval = ERROR_OK;
uint32_t dscr;
- struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
- struct armv7a_common *armv7a = &cortex_a8->armv7a_common;
- struct adiv5_dap *swjdp = armv7a->arm.dap;
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
+ struct armv7a_common *armv7a = &cortex_a->armv7a_common;
enum target_state prev_target_state = target->state;
/* toggle to another core is done by gdb as follow */
/* maint packet J core_id */
(target->gdb_service) &&
(target->gdb_service->target == NULL)) {
target->gdb_service->target =
- get_cortex_a8(target, target->gdb_service->core[1]);
+ get_cortex_a(target, target->gdb_service->core[1]);
target_call_event_callbacks(target, TARGET_EVENT_HALTED);
return retval;
}
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_DSCR, &dscr);
if (retval != ERROR_OK)
return retval;
- cortex_a8->cpudbg_dscr = dscr;
+ cortex_a->cpudbg_dscr = dscr;
if (DSCR_RUN_MODE(dscr) == (DSCR_CORE_HALTED | DSCR_CORE_RESTARTED)) {
if (prev_target_state != TARGET_HALTED) {
/* We have a halting debug event */
LOG_DEBUG("Target halted");
target->state = TARGET_HALTED;
- if ((prev_target_state == TARGET_RUNNING)
- || (prev_target_state == TARGET_UNKNOWN)
- || (prev_target_state == TARGET_RESET)) {
- retval = cortex_a8_debug_entry(target);
+
+ retval = cortex_a_debug_entry(target);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (target->smp) {
+ retval = update_halt_gdb(target);
if (retval != ERROR_OK)
return retval;
- if (target->smp) {
- retval = update_halt_gdb(target);
- if (retval != ERROR_OK)
- return retval;
- }
- target_call_event_callbacks(target,
- TARGET_EVENT_HALTED);
}
- if (prev_target_state == TARGET_DEBUG_RUNNING) {
- LOG_DEBUG(" ");
- retval = cortex_a8_debug_entry(target);
- if (retval != ERROR_OK)
+ if (prev_target_state == TARGET_DEBUG_RUNNING) {
+ target_call_event_callbacks(target, TARGET_EVENT_DEBUG_HALTED);
+ } else { /* prev_target_state is RUNNING, UNKNOWN or RESET */
+ if (arm_semihosting(target, &retval) != 0)
return retval;
- if (target->smp) {
- retval = update_halt_gdb(target);
- if (retval != ERROR_OK)
- return retval;
- }
target_call_event_callbacks(target,
- TARGET_EVENT_DEBUG_HALTED);
+ TARGET_EVENT_HALTED);
}
}
- } else if (DSCR_RUN_MODE(dscr) == DSCR_CORE_RESTARTED)
+ } else
target->state = TARGET_RUNNING;
- else {
- LOG_DEBUG("Unknown target state dscr = 0x%08" PRIx32, dscr);
- target->state = TARGET_UNKNOWN;
- }
return retval;
}
-static int cortex_a8_halt(struct target *target)
+static int cortex_a_halt(struct target *target)
{
int retval = ERROR_OK;
uint32_t dscr;
struct armv7a_common *armv7a = target_to_armv7a(target);
- struct adiv5_dap *swjdp = armv7a->arm.dap;
/*
* Tell the core to be halted by writing DRCR with 0x1
* and then wait for the core to be halted.
*/
- retval = mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_DRCR, DRCR_HALT);
if (retval != ERROR_OK)
return retval;
- /*
- * enter halting debug mode
- */
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, &dscr);
- if (retval != ERROR_OK)
- return retval;
-
- retval = mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, dscr | DSCR_HALT_DBG_MODE);
- if (retval != ERROR_OK)
- return retval;
-
- long long then = timeval_ms();
+ int64_t then = timeval_ms();
for (;; ) {
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_DSCR, &dscr);
if (retval != ERROR_OK)
return retval;
return ERROR_OK;
}
-static int cortex_a8_internal_restore(struct target *target, int current,
- uint32_t *address, int handle_breakpoints, int debug_execution)
+static int cortex_a_internal_restore(struct target *target, int current,
+ target_addr_t *address, int handle_breakpoints, int debug_execution)
{
struct armv7a_common *armv7a = target_to_armv7a(target);
struct arm *arm = &armv7a->arm;
* C_MASKINTS in parallel with disabled interrupts can cause
* local faults to not be taken. */
buf_set_u32(armv7m->core_cache->reg_list[ARMV7M_PRIMASK].value, 0, 32, 1);
- armv7m->core_cache->reg_list[ARMV7M_PRIMASK].dirty = 1;
- armv7m->core_cache->reg_list[ARMV7M_PRIMASK].valid = 1;
+ armv7m->core_cache->reg_list[ARMV7M_PRIMASK].dirty = true;
+ armv7m->core_cache->reg_list[ARMV7M_PRIMASK].valid = true;
/* Make sure we are in Thumb mode */
buf_set_u32(armv7m->core_cache->reg_list[ARMV7M_xPSR].value, 0, 32,
buf_get_u32(armv7m->core_cache->reg_list[ARMV7M_xPSR].value, 0,
32) | (1 << 24));
- armv7m->core_cache->reg_list[ARMV7M_xPSR].dirty = 1;
- armv7m->core_cache->reg_list[ARMV7M_xPSR].valid = 1;
+ armv7m->core_cache->reg_list[ARMV7M_xPSR].dirty = true;
+ armv7m->core_cache->reg_list[ARMV7M_xPSR].valid = true;
}
#endif
case ARM_STATE_JAZELLE:
LOG_ERROR("How do I resume into Jazelle state??");
return ERROR_FAIL;
+ case ARM_STATE_AARCH64:
+ LOG_ERROR("Shoudn't be in AARCH64 state");
+ return ERROR_FAIL;
}
LOG_DEBUG("resume pc = 0x%08" PRIx32, resume_pc);
buf_set_u32(arm->pc->value, 0, 32, resume_pc);
- arm->pc->dirty = 1;
- arm->pc->valid = 1;
+ arm->pc->dirty = true;
+ arm->pc->valid = true;
+
/* restore dpm_mode at system halt */
- dpm_modeswitch(&armv7a->dpm, ARM_MODE_ANY);
+ arm_dpm_modeswitch(&armv7a->dpm, ARM_MODE_ANY);
/* called it now before restoring context because it uses cpu
* register r0 for restoring cp15 control register */
- retval = cortex_a8_restore_cp15_control_reg(target);
+ retval = cortex_a_restore_cp15_control_reg(target);
if (retval != ERROR_OK)
return retval;
- retval = cortex_a8_restore_context(target, handle_breakpoints);
+ retval = cortex_a_restore_context(target, handle_breakpoints);
if (retval != ERROR_OK)
return retval;
target->debug_reason = DBG_REASON_NOTHALTED;
return retval;
}
-static int cortex_a8_internal_restart(struct target *target)
+static int cortex_a_internal_restart(struct target *target)
{
struct armv7a_common *armv7a = target_to_armv7a(target);
struct arm *arm = &armv7a->arm;
- struct adiv5_dap *swjdp = arm->dap;
int retval;
uint32_t dscr;
/*
* disable IRQs by default, with optional override...
*/
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_DSCR, &dscr);
if (retval != ERROR_OK)
return retval;
if ((dscr & DSCR_INSTR_COMP) == 0)
LOG_ERROR("DSCR InstrCompl must be set before leaving debug!");
- retval = mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_DSCR, dscr & ~DSCR_ITR_EN);
if (retval != ERROR_OK)
return retval;
- retval = mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_DRCR, DRCR_RESTART |
DRCR_CLEAR_EXCEPTIONS);
if (retval != ERROR_OK)
return retval;
- long long then = timeval_ms();
+ int64_t then = timeval_ms();
for (;; ) {
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_DSCR, &dscr);
if (retval != ERROR_OK)
return retval;
return ERROR_OK;
}
-static int cortex_a8_restore_smp(struct target *target, int handle_breakpoints)
+static int cortex_a_restore_smp(struct target *target, int handle_breakpoints)
{
int retval = 0;
struct target_list *head;
struct target *curr;
- uint32_t address;
+ target_addr_t address;
head = target->head;
while (head != (struct target_list *)NULL) {
curr = head->target;
- if ((curr != target) && (curr->state != TARGET_RUNNING)) {
+ if ((curr != target) && (curr->state != TARGET_RUNNING)
+ && target_was_examined(curr)) {
/* resume current address , not in step mode */
- retval += cortex_a8_internal_restore(curr, 1, &address,
+ retval += cortex_a_internal_restore(curr, 1, &address,
handle_breakpoints, 0);
- retval += cortex_a8_internal_restart(curr);
+ retval += cortex_a_internal_restart(curr);
}
head = head->next;
return retval;
}
-static int cortex_a8_resume(struct target *target, int current,
- uint32_t address, int handle_breakpoints, int debug_execution)
+static int cortex_a_resume(struct target *target, int current,
+ target_addr_t address, int handle_breakpoints, int debug_execution)
{
int retval = 0;
/* dummy resume for smp toggle in order to reduce gdb impact */
target_call_event_callbacks(target, TARGET_EVENT_RESUMED);
return 0;
}
- cortex_a8_internal_restore(target, current, &address, handle_breakpoints, debug_execution);
+ cortex_a_internal_restore(target, current, &address, handle_breakpoints, debug_execution);
if (target->smp) {
target->gdb_service->core[0] = -1;
- retval = cortex_a8_restore_smp(target, handle_breakpoints);
+ retval = cortex_a_restore_smp(target, handle_breakpoints);
if (retval != ERROR_OK)
return retval;
}
- cortex_a8_internal_restart(target);
+ cortex_a_internal_restart(target);
if (!debug_execution) {
target->state = TARGET_RUNNING;
target_call_event_callbacks(target, TARGET_EVENT_RESUMED);
- LOG_DEBUG("target resumed at 0x%" PRIx32, address);
+ LOG_DEBUG("target resumed at " TARGET_ADDR_FMT, address);
} else {
target->state = TARGET_DEBUG_RUNNING;
target_call_event_callbacks(target, TARGET_EVENT_DEBUG_RESUMED);
- LOG_DEBUG("target debug resumed at 0x%" PRIx32, address);
+ LOG_DEBUG("target debug resumed at " TARGET_ADDR_FMT, address);
}
return ERROR_OK;
}
-static int cortex_a8_debug_entry(struct target *target)
+static int cortex_a_debug_entry(struct target *target)
{
- int i;
- uint32_t regfile[16], cpsr, dscr;
+ uint32_t dscr;
int retval = ERROR_OK;
- struct working_area *regfile_working_area = NULL;
- struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
struct armv7a_common *armv7a = target_to_armv7a(target);
struct arm *arm = &armv7a->arm;
- struct adiv5_dap *swjdp = armv7a->arm.dap;
- struct reg *reg;
- LOG_DEBUG("dscr = 0x%08" PRIx32, cortex_a8->cpudbg_dscr);
+ LOG_DEBUG("dscr = 0x%08" PRIx32, cortex_a->cpudbg_dscr);
/* REVISIT surely we should not re-read DSCR !! */
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_DSCR, &dscr);
if (retval != ERROR_OK)
return retval;
- /* REVISIT see A8 TRM 12.11.4 steps 2..3 -- make sure that any
+ /* REVISIT see A TRM 12.11.4 steps 2..3 -- make sure that any
* imprecise data aborts get discarded by issuing a Data
* Synchronization Barrier: ARMV4_5_MCR(15, 0, 0, 7, 10, 4).
*/
/* Enable the ITR execution once we are in debug mode */
dscr |= DSCR_ITR_EN;
- retval = mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_DSCR, dscr);
if (retval != ERROR_OK)
return retval;
/* Examine debug reason */
- arm_dpm_report_dscr(&armv7a->dpm, cortex_a8->cpudbg_dscr);
+ arm_dpm_report_dscr(&armv7a->dpm, cortex_a->cpudbg_dscr);
/* save address of instruction that triggered the watchpoint? */
if (target->debug_reason == DBG_REASON_WATCHPOINT) {
uint32_t wfar;
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_WFAR,
&wfar);
if (retval != ERROR_OK)
arm_dpm_report_wfar(&armv7a->dpm, wfar);
}
- /* REVISIT fast_reg_read is never set ... */
-
- /* Examine target state and mode */
- if (cortex_a8->fast_reg_read)
- target_alloc_working_area(target, 64, ®file_working_area);
-
- /* First load register acessible through core debug port*/
- if (!regfile_working_area)
- retval = arm_dpm_read_current_registers(&armv7a->dpm);
- else {
- retval = cortex_a8_read_regs_through_mem(target,
- regfile_working_area->address, regfile);
-
- target_free_working_area(target, regfile_working_area);
- if (retval != ERROR_OK)
- return retval;
+ /* First load register accessible through core debug port */
+ retval = arm_dpm_read_current_registers(&armv7a->dpm);
+ if (retval != ERROR_OK)
+ return retval;
- /* read Current PSR */
- retval = cortex_a8_dap_read_coreregister_u32(target, &cpsr, 16);
- /* store current cpsr */
+ if (arm->spsr) {
+ /* read SPSR */
+ retval = arm_dpm_read_reg(&armv7a->dpm, arm->spsr, 17);
if (retval != ERROR_OK)
return retval;
-
- LOG_DEBUG("cpsr: %8.8" PRIx32, cpsr);
-
- arm_set_cpsr(arm, cpsr);
-
- /* update cache */
- for (i = 0; i <= ARM_PC; i++) {
- reg = arm_reg_current(arm, i);
-
- buf_set_u32(reg->value, 0, 32, regfile[i]);
- reg->valid = 1;
- reg->dirty = 0;
- }
-
- /* Fixup PC Resume Address */
- if (cpsr & (1 << 5)) {
- /* T bit set for Thumb or ThumbEE state */
- regfile[ARM_PC] -= 4;
- } else {
- /* ARM state */
- regfile[ARM_PC] -= 8;
- }
-
- reg = arm->pc;
- buf_set_u32(reg->value, 0, 32, regfile[ARM_PC]);
- reg->dirty = reg->valid;
}
#if 0
/* TODO, Move this */
uint32_t cp15_control_register, cp15_cacr, cp15_nacr;
- cortex_a8_read_cp(target, &cp15_control_register, 15, 0, 1, 0, 0);
+ cortex_a_read_cp(target, &cp15_control_register, 15, 0, 1, 0, 0);
LOG_DEBUG("cp15_control_register = 0x%08x", cp15_control_register);
- cortex_a8_read_cp(target, &cp15_cacr, 15, 0, 1, 0, 2);
+ cortex_a_read_cp(target, &cp15_cacr, 15, 0, 1, 0, 2);
LOG_DEBUG("cp15 Coprocessor Access Control Register = 0x%08x", cp15_cacr);
- cortex_a8_read_cp(target, &cp15_nacr, 15, 0, 1, 1, 2);
+ cortex_a_read_cp(target, &cp15_nacr, 15, 0, 1, 1, 2);
LOG_DEBUG("cp15 Nonsecure Access Control Register = 0x%08x", cp15_nacr);
#endif
return retval;
}
-static int cortex_a8_post_debug_entry(struct target *target)
+static int cortex_a_post_debug_entry(struct target *target)
{
- struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
- struct armv7a_common *armv7a = &cortex_a8->armv7a_common;
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
+ struct armv7a_common *armv7a = &cortex_a->armv7a_common;
int retval;
/* MRC p15,0,<Rt>,c1,c0,0 ; Read CP15 System Control Register */
retval = armv7a->arm.mrc(target, 15,
0, 0, /* op1, op2 */
1, 0, /* CRn, CRm */
- &cortex_a8->cp15_control_reg);
+ &cortex_a->cp15_control_reg);
if (retval != ERROR_OK)
return retval;
- LOG_DEBUG("cp15_control_reg: %8.8" PRIx32, cortex_a8->cp15_control_reg);
- cortex_a8->cp15_control_reg_curr = cortex_a8->cp15_control_reg;
+ LOG_DEBUG("cp15_control_reg: %8.8" PRIx32, cortex_a->cp15_control_reg);
+ cortex_a->cp15_control_reg_curr = cortex_a->cp15_control_reg;
+
+ if (!armv7a->is_armv7r)
+ armv7a_read_ttbcr(target);
- if (armv7a->armv7a_mmu.armv7a_cache.ctype == -1)
+ if (armv7a->armv7a_mmu.armv7a_cache.info == -1)
armv7a_identify_cache(target);
if (armv7a->is_armv7r) {
armv7a->armv7a_mmu.mmu_enabled = 0;
} else {
armv7a->armv7a_mmu.mmu_enabled =
- (cortex_a8->cp15_control_reg & 0x1U) ? 1 : 0;
+ (cortex_a->cp15_control_reg & 0x1U) ? 1 : 0;
}
armv7a->armv7a_mmu.armv7a_cache.d_u_cache_enabled =
- (cortex_a8->cp15_control_reg & 0x4U) ? 1 : 0;
+ (cortex_a->cp15_control_reg & 0x4U) ? 1 : 0;
armv7a->armv7a_mmu.armv7a_cache.i_cache_enabled =
- (cortex_a8->cp15_control_reg & 0x1000U) ? 1 : 0;
- cortex_a8->curr_mode = armv7a->arm.core_mode;
+ (cortex_a->cp15_control_reg & 0x1000U) ? 1 : 0;
+ cortex_a->curr_mode = armv7a->arm.core_mode;
+
+ /* switch to SVC mode to read DACR */
+ arm_dpm_modeswitch(&armv7a->dpm, ARM_MODE_SVC);
+ armv7a->arm.mrc(target, 15,
+ 0, 0, 3, 0,
+ &cortex_a->cp15_dacr_reg);
+
+ LOG_DEBUG("cp15_dacr_reg: %8.8" PRIx32,
+ cortex_a->cp15_dacr_reg);
+ arm_dpm_modeswitch(&armv7a->dpm, ARM_MODE_ANY);
return ERROR_OK;
}
-static int cortex_a8_step(struct target *target, int current, uint32_t address,
+int cortex_a_set_dscr_bits(struct target *target, unsigned long bit_mask, unsigned long value)
+{
+ struct armv7a_common *armv7a = target_to_armv7a(target);
+ uint32_t dscr;
+
+ /* Read DSCR */
+ int retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DSCR, &dscr);
+ if (ERROR_OK != retval)
+ return retval;
+
+ /* clear bitfield */
+ dscr &= ~bit_mask;
+ /* put new value */
+ dscr |= value & bit_mask;
+
+ /* write new DSCR */
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DSCR, dscr);
+ return retval;
+}
+
+static int cortex_a_step(struct target *target, int current, target_addr_t address,
int handle_breakpoints)
{
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
struct armv7a_common *armv7a = target_to_armv7a(target);
struct arm *arm = &armv7a->arm;
struct breakpoint *breakpoint = NULL;
address = buf_get_u32(r->value, 0, 32);
/* The front-end may request us not to handle breakpoints.
- * But since Cortex-A8 uses breakpoint for single step,
+ * But since Cortex-A uses breakpoint for single step,
* we MUST handle breakpoints.
*/
handle_breakpoints = 1;
if (handle_breakpoints) {
breakpoint = breakpoint_find(target, address);
if (breakpoint)
- cortex_a8_unset_breakpoint(target, breakpoint);
+ cortex_a_unset_breakpoint(target, breakpoint);
}
/* Setup single step breakpoint */
stepbreakpoint.address = address;
+ stepbreakpoint.asid = 0;
stepbreakpoint.length = (arm->core_state == ARM_STATE_THUMB)
? 2 : 4;
stepbreakpoint.type = BKPT_HARD;
stepbreakpoint.set = 0;
+ /* Disable interrupts during single step if requested */
+ if (cortex_a->isrmasking_mode == CORTEX_A_ISRMASK_ON) {
+ retval = cortex_a_set_dscr_bits(target, DSCR_INT_DIS, DSCR_INT_DIS);
+ if (ERROR_OK != retval)
+ return retval;
+ }
+
/* Break on IVA mismatch */
- cortex_a8_set_breakpoint(target, &stepbreakpoint, 0x04);
+ cortex_a_set_breakpoint(target, &stepbreakpoint, 0x04);
target->debug_reason = DBG_REASON_SINGLESTEP;
- retval = cortex_a8_resume(target, 1, address, 0, 0);
+ retval = cortex_a_resume(target, 1, address, 0, 0);
if (retval != ERROR_OK)
return retval;
- long long then = timeval_ms();
+ int64_t then = timeval_ms();
while (target->state != TARGET_HALTED) {
- retval = cortex_a8_poll(target);
+ retval = cortex_a_poll(target);
if (retval != ERROR_OK)
return retval;
if (timeval_ms() > then + 1000) {
}
}
- cortex_a8_unset_breakpoint(target, &stepbreakpoint);
+ cortex_a_unset_breakpoint(target, &stepbreakpoint);
+
+ /* Re-enable interrupts if they were disabled */
+ if (cortex_a->isrmasking_mode == CORTEX_A_ISRMASK_ON) {
+ retval = cortex_a_set_dscr_bits(target, DSCR_INT_DIS, 0);
+ if (ERROR_OK != retval)
+ return retval;
+ }
+
target->debug_reason = DBG_REASON_BREAKPOINT;
if (breakpoint)
- cortex_a8_set_breakpoint(target, breakpoint, 0);
+ cortex_a_set_breakpoint(target, breakpoint, 0);
if (target->state != TARGET_HALTED)
LOG_DEBUG("target stepped");
return ERROR_OK;
}
-static int cortex_a8_restore_context(struct target *target, bool bpwp)
+static int cortex_a_restore_context(struct target *target, bool bpwp)
{
struct armv7a_common *armv7a = target_to_armv7a(target);
}
/*
- * Cortex-A8 Breakpoint and watchpoint functions
+ * Cortex-A Breakpoint and watchpoint functions
*/
/* Setup hardware Breakpoint Register Pair */
-static int cortex_a8_set_breakpoint(struct target *target,
+static int cortex_a_set_breakpoint(struct target *target,
struct breakpoint *breakpoint, uint8_t matchmode)
{
int retval;
int brp_i = 0;
uint32_t control;
uint8_t byte_addr_select = 0x0F;
- struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
- struct armv7a_common *armv7a = &cortex_a8->armv7a_common;
- struct cortex_a8_brp *brp_list = cortex_a8->brp_list;
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
+ struct armv7a_common *armv7a = &cortex_a->armv7a_common;
+ struct cortex_a_brp *brp_list = cortex_a->brp_list;
if (breakpoint->set) {
LOG_WARNING("breakpoint already set");
}
if (breakpoint->type == BKPT_HARD) {
- while (brp_list[brp_i].used && (brp_i < cortex_a8->brp_num))
+ while (brp_list[brp_i].used && (brp_i < cortex_a->brp_num))
brp_i++;
- if (brp_i >= cortex_a8->brp_num) {
+ if (brp_i >= cortex_a->brp_num) {
LOG_ERROR("ERROR Can not find free Breakpoint Register Pair");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
brp_list[brp_i].used = 1;
brp_list[brp_i].value = (breakpoint->address & 0xFFFFFFFC);
brp_list[brp_i].control = control;
- retval = cortex_a8_dap_write_memap_register_u32(target, armv7a->debug_base
+ retval = cortex_a_dap_write_memap_register_u32(target, armv7a->debug_base
+ CPUDBG_BVR_BASE + 4 * brp_list[brp_i].BRPn,
brp_list[brp_i].value);
if (retval != ERROR_OK)
return retval;
- retval = cortex_a8_dap_write_memap_register_u32(target, armv7a->debug_base
+ retval = cortex_a_dap_write_memap_register_u32(target, armv7a->debug_base
+ CPUDBG_BCR_BASE + 4 * brp_list[brp_i].BRPn,
brp_list[brp_i].control);
if (retval != ERROR_OK)
brp_list[brp_i].value);
} else if (breakpoint->type == BKPT_SOFT) {
uint8_t code[4];
+ /* length == 2: Thumb breakpoint */
if (breakpoint->length == 2)
buf_set_u32(code, 0, 32, ARMV5_T_BKPT(0x11));
else
+ /* length == 3: Thumb-2 breakpoint, actual encoding is
+ * a regular Thumb BKPT instruction but we replace a
+ * 32bit Thumb-2 instruction, so fix-up the breakpoint
+ * length
+ */
+ if (breakpoint->length == 3) {
+ buf_set_u32(code, 0, 32, ARMV5_T_BKPT(0x11));
+ breakpoint->length = 4;
+ } else
+ /* length == 4, normal ARM breakpoint */
buf_set_u32(code, 0, 32, ARMV5_BKPT(0x11));
+
retval = target_read_memory(target,
breakpoint->address & 0xFFFFFFFE,
breakpoint->length, 1,
breakpoint->orig_instr);
if (retval != ERROR_OK)
return retval;
+
+ /* make sure data cache is cleaned & invalidated down to PoC */
+ if (!armv7a->armv7a_mmu.armv7a_cache.auto_cache_enabled) {
+ armv7a_cache_flush_virt(target, breakpoint->address,
+ breakpoint->length);
+ }
+
retval = target_write_memory(target,
breakpoint->address & 0xFFFFFFFE,
breakpoint->length, 1, code);
if (retval != ERROR_OK)
return retval;
+
+ /* update i-cache at breakpoint location */
+ armv7a_l1_d_cache_inval_virt(target, breakpoint->address,
+ breakpoint->length);
+ armv7a_l1_i_cache_inval_virt(target, breakpoint->address,
+ breakpoint->length);
+
breakpoint->set = 0x11; /* Any nice value but 0 */
}
return ERROR_OK;
}
-static int cortex_a8_set_context_breakpoint(struct target *target,
+static int cortex_a_set_context_breakpoint(struct target *target,
struct breakpoint *breakpoint, uint8_t matchmode)
{
int retval = ERROR_FAIL;
int brp_i = 0;
uint32_t control;
uint8_t byte_addr_select = 0x0F;
- struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
- struct armv7a_common *armv7a = &cortex_a8->armv7a_common;
- struct cortex_a8_brp *brp_list = cortex_a8->brp_list;
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
+ struct armv7a_common *armv7a = &cortex_a->armv7a_common;
+ struct cortex_a_brp *brp_list = cortex_a->brp_list;
if (breakpoint->set) {
LOG_WARNING("breakpoint already set");
}
/*check available context BRPs*/
while ((brp_list[brp_i].used ||
- (brp_list[brp_i].type != BRP_CONTEXT)) && (brp_i < cortex_a8->brp_num))
+ (brp_list[brp_i].type != BRP_CONTEXT)) && (brp_i < cortex_a->brp_num))
brp_i++;
- if (brp_i >= cortex_a8->brp_num) {
+ if (brp_i >= cortex_a->brp_num) {
LOG_ERROR("ERROR Can not find free Breakpoint Register Pair");
return ERROR_FAIL;
}
brp_list[brp_i].used = 1;
brp_list[brp_i].value = (breakpoint->asid);
brp_list[brp_i].control = control;
- retval = cortex_a8_dap_write_memap_register_u32(target, armv7a->debug_base
+ retval = cortex_a_dap_write_memap_register_u32(target, armv7a->debug_base
+ CPUDBG_BVR_BASE + 4 * brp_list[brp_i].BRPn,
brp_list[brp_i].value);
if (retval != ERROR_OK)
return retval;
- retval = cortex_a8_dap_write_memap_register_u32(target, armv7a->debug_base
+ retval = cortex_a_dap_write_memap_register_u32(target, armv7a->debug_base
+ CPUDBG_BCR_BASE + 4 * brp_list[brp_i].BRPn,
brp_list[brp_i].control);
if (retval != ERROR_OK)
}
-static int cortex_a8_set_hybrid_breakpoint(struct target *target, struct breakpoint *breakpoint)
+static int cortex_a_set_hybrid_breakpoint(struct target *target, struct breakpoint *breakpoint)
{
int retval = ERROR_FAIL;
int brp_1 = 0; /* holds the contextID pair */
uint8_t IVA_byte_addr_select = 0x0F;
uint8_t CTX_machmode = 0x03;
uint8_t IVA_machmode = 0x01;
- struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
- struct armv7a_common *armv7a = &cortex_a8->armv7a_common;
- struct cortex_a8_brp *brp_list = cortex_a8->brp_list;
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
+ struct armv7a_common *armv7a = &cortex_a->armv7a_common;
+ struct cortex_a_brp *brp_list = cortex_a->brp_list;
if (breakpoint->set) {
LOG_WARNING("breakpoint already set");
}
/*check available context BRPs*/
while ((brp_list[brp_1].used ||
- (brp_list[brp_1].type != BRP_CONTEXT)) && (brp_1 < cortex_a8->brp_num))
+ (brp_list[brp_1].type != BRP_CONTEXT)) && (brp_1 < cortex_a->brp_num))
brp_1++;
printf("brp(CTX) found num: %d\n", brp_1);
- if (brp_1 >= cortex_a8->brp_num) {
+ if (brp_1 >= cortex_a->brp_num) {
LOG_ERROR("ERROR Can not find free Breakpoint Register Pair");
return ERROR_FAIL;
}
while ((brp_list[brp_2].used ||
- (brp_list[brp_2].type != BRP_NORMAL)) && (brp_2 < cortex_a8->brp_num))
+ (brp_list[brp_2].type != BRP_NORMAL)) && (brp_2 < cortex_a->brp_num))
brp_2++;
printf("brp(IVA) found num: %d\n", brp_2);
- if (brp_2 >= cortex_a8->brp_num) {
+ if (brp_2 >= cortex_a->brp_num) {
LOG_ERROR("ERROR Can not find free Breakpoint Register Pair");
return ERROR_FAIL;
}
brp_list[brp_1].used = 1;
brp_list[brp_1].value = (breakpoint->asid);
brp_list[brp_1].control = control_CTX;
- retval = cortex_a8_dap_write_memap_register_u32(target, armv7a->debug_base
+ retval = cortex_a_dap_write_memap_register_u32(target, armv7a->debug_base
+ CPUDBG_BVR_BASE + 4 * brp_list[brp_1].BRPn,
brp_list[brp_1].value);
if (retval != ERROR_OK)
return retval;
- retval = cortex_a8_dap_write_memap_register_u32(target, armv7a->debug_base
+ retval = cortex_a_dap_write_memap_register_u32(target, armv7a->debug_base
+ CPUDBG_BCR_BASE + 4 * brp_list[brp_1].BRPn,
brp_list[brp_1].control);
if (retval != ERROR_OK)
brp_list[brp_2].used = 1;
brp_list[brp_2].value = (breakpoint->address & 0xFFFFFFFC);
brp_list[brp_2].control = control_IVA;
- retval = cortex_a8_dap_write_memap_register_u32(target, armv7a->debug_base
+ retval = cortex_a_dap_write_memap_register_u32(target, armv7a->debug_base
+ CPUDBG_BVR_BASE + 4 * brp_list[brp_2].BRPn,
brp_list[brp_2].value);
if (retval != ERROR_OK)
return retval;
- retval = cortex_a8_dap_write_memap_register_u32(target, armv7a->debug_base
+ retval = cortex_a_dap_write_memap_register_u32(target, armv7a->debug_base
+ CPUDBG_BCR_BASE + 4 * brp_list[brp_2].BRPn,
brp_list[brp_2].control);
if (retval != ERROR_OK)
return ERROR_OK;
}
-static int cortex_a8_unset_breakpoint(struct target *target, struct breakpoint *breakpoint)
+static int cortex_a_unset_breakpoint(struct target *target, struct breakpoint *breakpoint)
{
int retval;
- struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
- struct armv7a_common *armv7a = &cortex_a8->armv7a_common;
- struct cortex_a8_brp *brp_list = cortex_a8->brp_list;
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
+ struct armv7a_common *armv7a = &cortex_a->armv7a_common;
+ struct cortex_a_brp *brp_list = cortex_a->brp_list;
if (!breakpoint->set) {
LOG_WARNING("breakpoint not set");
if ((breakpoint->address != 0) && (breakpoint->asid != 0)) {
int brp_i = breakpoint->set - 1;
int brp_j = breakpoint->linked_BRP;
- if ((brp_i < 0) || (brp_i >= cortex_a8->brp_num)) {
+ if ((brp_i < 0) || (brp_i >= cortex_a->brp_num)) {
LOG_DEBUG("Invalid BRP number in breakpoint");
return ERROR_OK;
}
brp_list[brp_i].used = 0;
brp_list[brp_i].value = 0;
brp_list[brp_i].control = 0;
- retval = cortex_a8_dap_write_memap_register_u32(target, armv7a->debug_base
+ retval = cortex_a_dap_write_memap_register_u32(target, armv7a->debug_base
+ CPUDBG_BCR_BASE + 4 * brp_list[brp_i].BRPn,
brp_list[brp_i].control);
if (retval != ERROR_OK)
return retval;
- retval = cortex_a8_dap_write_memap_register_u32(target, armv7a->debug_base
+ retval = cortex_a_dap_write_memap_register_u32(target, armv7a->debug_base
+ CPUDBG_BVR_BASE + 4 * brp_list[brp_i].BRPn,
brp_list[brp_i].value);
if (retval != ERROR_OK)
return retval;
- if ((brp_j < 0) || (brp_j >= cortex_a8->brp_num)) {
+ if ((brp_j < 0) || (brp_j >= cortex_a->brp_num)) {
LOG_DEBUG("Invalid BRP number in breakpoint");
return ERROR_OK;
}
brp_list[brp_j].used = 0;
brp_list[brp_j].value = 0;
brp_list[brp_j].control = 0;
- retval = cortex_a8_dap_write_memap_register_u32(target, armv7a->debug_base
+ retval = cortex_a_dap_write_memap_register_u32(target, armv7a->debug_base
+ CPUDBG_BCR_BASE + 4 * brp_list[brp_j].BRPn,
brp_list[brp_j].control);
if (retval != ERROR_OK)
return retval;
- retval = cortex_a8_dap_write_memap_register_u32(target, armv7a->debug_base
+ retval = cortex_a_dap_write_memap_register_u32(target, armv7a->debug_base
+ CPUDBG_BVR_BASE + 4 * brp_list[brp_j].BRPn,
brp_list[brp_j].value);
if (retval != ERROR_OK)
} else {
int brp_i = breakpoint->set - 1;
- if ((brp_i < 0) || (brp_i >= cortex_a8->brp_num)) {
+ if ((brp_i < 0) || (brp_i >= cortex_a->brp_num)) {
LOG_DEBUG("Invalid BRP number in breakpoint");
return ERROR_OK;
}
brp_list[brp_i].used = 0;
brp_list[brp_i].value = 0;
brp_list[brp_i].control = 0;
- retval = cortex_a8_dap_write_memap_register_u32(target, armv7a->debug_base
+ retval = cortex_a_dap_write_memap_register_u32(target, armv7a->debug_base
+ CPUDBG_BCR_BASE + 4 * brp_list[brp_i].BRPn,
brp_list[brp_i].control);
if (retval != ERROR_OK)
return retval;
- retval = cortex_a8_dap_write_memap_register_u32(target, armv7a->debug_base
+ retval = cortex_a_dap_write_memap_register_u32(target, armv7a->debug_base
+ CPUDBG_BVR_BASE + 4 * brp_list[brp_i].BRPn,
brp_list[brp_i].value);
if (retval != ERROR_OK)
return ERROR_OK;
}
} else {
+
+ /* make sure data cache is cleaned & invalidated down to PoC */
+ if (!armv7a->armv7a_mmu.armv7a_cache.auto_cache_enabled) {
+ armv7a_cache_flush_virt(target, breakpoint->address,
+ breakpoint->length);
+ }
+
/* restore original instruction (kept in target endianness) */
if (breakpoint->length == 4) {
retval = target_write_memory(target,
if (retval != ERROR_OK)
return retval;
}
+
+ /* update i-cache at breakpoint location */
+ armv7a_l1_d_cache_inval_virt(target, breakpoint->address,
+ breakpoint->length);
+ armv7a_l1_i_cache_inval_virt(target, breakpoint->address,
+ breakpoint->length);
}
breakpoint->set = 0;
return ERROR_OK;
}
-static int cortex_a8_add_breakpoint(struct target *target,
+static int cortex_a_add_breakpoint(struct target *target,
struct breakpoint *breakpoint)
{
- struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
- if ((breakpoint->type == BKPT_HARD) && (cortex_a8->brp_num_available < 1)) {
+ if ((breakpoint->type == BKPT_HARD) && (cortex_a->brp_num_available < 1)) {
LOG_INFO("no hardware breakpoint available");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
if (breakpoint->type == BKPT_HARD)
- cortex_a8->brp_num_available--;
+ cortex_a->brp_num_available--;
- return cortex_a8_set_breakpoint(target, breakpoint, 0x00); /* Exact match */
+ return cortex_a_set_breakpoint(target, breakpoint, 0x00); /* Exact match */
}
-static int cortex_a8_add_context_breakpoint(struct target *target,
+static int cortex_a_add_context_breakpoint(struct target *target,
struct breakpoint *breakpoint)
{
- struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
- if ((breakpoint->type == BKPT_HARD) && (cortex_a8->brp_num_available < 1)) {
+ if ((breakpoint->type == BKPT_HARD) && (cortex_a->brp_num_available < 1)) {
LOG_INFO("no hardware breakpoint available");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
if (breakpoint->type == BKPT_HARD)
- cortex_a8->brp_num_available--;
+ cortex_a->brp_num_available--;
- return cortex_a8_set_context_breakpoint(target, breakpoint, 0x02); /* asid match */
+ return cortex_a_set_context_breakpoint(target, breakpoint, 0x02); /* asid match */
}
-static int cortex_a8_add_hybrid_breakpoint(struct target *target,
+static int cortex_a_add_hybrid_breakpoint(struct target *target,
struct breakpoint *breakpoint)
{
- struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
- if ((breakpoint->type == BKPT_HARD) && (cortex_a8->brp_num_available < 1)) {
+ if ((breakpoint->type == BKPT_HARD) && (cortex_a->brp_num_available < 1)) {
LOG_INFO("no hardware breakpoint available");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
if (breakpoint->type == BKPT_HARD)
- cortex_a8->brp_num_available--;
+ cortex_a->brp_num_available--;
- return cortex_a8_set_hybrid_breakpoint(target, breakpoint); /* ??? */
+ return cortex_a_set_hybrid_breakpoint(target, breakpoint); /* ??? */
}
-static int cortex_a8_remove_breakpoint(struct target *target, struct breakpoint *breakpoint)
+static int cortex_a_remove_breakpoint(struct target *target, struct breakpoint *breakpoint)
{
- struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
#if 0
/* It is perfectly possible to remove breakpoints while the target is running */
#endif
if (breakpoint->set) {
- cortex_a8_unset_breakpoint(target, breakpoint);
+ cortex_a_unset_breakpoint(target, breakpoint);
if (breakpoint->type == BKPT_HARD)
- cortex_a8->brp_num_available++;
+ cortex_a->brp_num_available++;
}
}
/*
- * Cortex-A8 Reset functions
+ * Cortex-A Reset functions
*/
-static int cortex_a8_assert_reset(struct target *target)
+static int cortex_a_assert_reset(struct target *target)
{
struct armv7a_common *armv7a = target_to_armv7a(target);
/* FIXME when halt is requested, make it work somehow... */
+ /* This function can be called in "target not examined" state */
+
/* Issue some kind of warm reset. */
if (target_has_event_action(target, TARGET_EVENT_RESET_ASSERT))
target_handle_event(target, TARGET_EVENT_RESET_ASSERT);
/* REVISIT handle "pulls" cases, if there's
* hardware that needs them to work.
*/
- jtag_add_reset(0, 1);
+
+ /*
+ * FIXME: fix reset when transport is SWD. This is a temporary
+ * work-around for release v0.10 that is not intended to stay!
+ */
+ if (transport_is_swd() ||
+ (target->reset_halt && (jtag_get_reset_config() & RESET_SRST_NO_GATING)))
+ jtag_add_reset(0, 1);
+
} else {
LOG_ERROR("%s: how to reset?", target_name(target));
return ERROR_FAIL;
}
/* registers are now invalid */
- register_cache_invalidate(armv7a->arm.core_cache);
+ if (target_was_examined(target))
+ register_cache_invalidate(armv7a->arm.core_cache);
target->state = TARGET_RESET;
return ERROR_OK;
}
-static int cortex_a8_deassert_reset(struct target *target)
+static int cortex_a_deassert_reset(struct target *target)
{
int retval;
/* be certain SRST is off */
jtag_add_reset(0, 0);
- retval = cortex_a8_poll(target);
- if (retval != ERROR_OK)
- return retval;
+ if (target_was_examined(target)) {
+ retval = cortex_a_poll(target);
+ if (retval != ERROR_OK)
+ return retval;
+ }
if (target->reset_halt) {
if (target->state != TARGET_HALTED) {
LOG_WARNING("%s: ran after reset and before halt ...",
target_name(target));
- retval = target_halt(target);
- if (retval != ERROR_OK)
- return retval;
+ if (target_was_examined(target)) {
+ retval = target_halt(target);
+ if (retval != ERROR_OK)
+ return retval;
+ } else
+ target->state = TARGET_UNKNOWN;
}
}
return ERROR_OK;
}
-static int cortex_a8_write_apb_ab_memory(struct target *target,
- uint32_t address, uint32_t size,
- uint32_t count, const uint8_t *buffer)
+static int cortex_a_set_dcc_mode(struct target *target, uint32_t mode, uint32_t *dscr)
{
- /* write memory through APB-AP */
+ /* Changes the mode of the DCC between non-blocking, stall, and fast mode.
+ * New desired mode must be in mode. Current value of DSCR must be in
+ * *dscr, which is updated with new value.
+ *
+ * This function elides actually sending the mode-change over the debug
+ * interface if the mode is already set as desired.
+ */
+ uint32_t new_dscr = (*dscr & ~DSCR_EXT_DCC_MASK) | mode;
+ if (new_dscr != *dscr) {
+ struct armv7a_common *armv7a = target_to_armv7a(target);
+ int retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DSCR, new_dscr);
+ if (retval == ERROR_OK)
+ *dscr = new_dscr;
+ return retval;
+ } else {
+ return ERROR_OK;
+ }
+}
- int retval = ERROR_COMMAND_SYNTAX_ERROR;
+static int cortex_a_wait_dscr_bits(struct target *target, uint32_t mask,
+ uint32_t value, uint32_t *dscr)
+{
+ /* Waits until the specified bit(s) of DSCR take on a specified value. */
struct armv7a_common *armv7a = target_to_armv7a(target);
- struct arm *arm = &armv7a->arm;
- struct adiv5_dap *swjdp = armv7a->arm.dap;
- int total_bytes = count * size;
- int total_u32;
- int start_byte = address & 0x3;
- int end_byte = (address + total_bytes) & 0x3;
- struct reg *reg;
- uint32_t dscr;
- uint8_t *tmp_buff = NULL;
+ int64_t then = timeval_ms();
+ int retval;
- if (target->state != TARGET_HALTED) {
- LOG_WARNING("target not halted");
- return ERROR_TARGET_NOT_HALTED;
+ while ((*dscr & mask) != value) {
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DSCR, dscr);
+ if (retval != ERROR_OK)
+ return retval;
+ if (timeval_ms() > then + 1000) {
+ LOG_ERROR("timeout waiting for DSCR bit change");
+ return ERROR_FAIL;
+ }
}
+ return ERROR_OK;
+}
- total_u32 = DIV_ROUND_UP((address & 3) + total_bytes, 4);
+static int cortex_a_read_copro(struct target *target, uint32_t opcode,
+ uint32_t *data, uint32_t *dscr)
+{
+ int retval;
+ struct armv7a_common *armv7a = target_to_armv7a(target);
- /* Mark register R0 as dirty, as it will be used
- * for transferring the data.
- * It will be restored automatically when exiting
- * debug mode
- */
- reg = arm_reg_current(arm, 0);
- reg->dirty = true;
+ /* Move from coprocessor to R0. */
+ retval = cortex_a_exec_opcode(target, opcode, dscr);
+ if (retval != ERROR_OK)
+ return retval;
- /* clear any abort */
- retval = mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap, armv7a->debug_base + CPUDBG_DRCR, 1<<2);
+ /* Move from R0 to DTRTX. */
+ retval = cortex_a_exec_opcode(target, ARMV4_5_MCR(14, 0, 0, 0, 5, 0), dscr);
if (retval != ERROR_OK)
return retval;
- /* This algorithm comes from either :
- * Cortex-A8 TRM Example 12-25
- * Cortex-R4 TRM Example 11-26
- * (slight differences)
- */
+ /* Wait until DTRTX is full (according to ARMv7-A/-R architecture
+ * manual section C8.4.3, checking InstrCmpl_l is not sufficient; one
+ * must also check TXfull_l). Most of the time this will be free
+ * because TXfull_l will be set immediately and cached in dscr. */
+ retval = cortex_a_wait_dscr_bits(target, DSCR_DTRTX_FULL_LATCHED,
+ DSCR_DTRTX_FULL_LATCHED, dscr);
+ if (retval != ERROR_OK)
+ return retval;
- /* The algorithm only copies 32 bit words, so the buffer
- * should be expanded to include the words at either end.
- * The first and last words will be read first to avoid
- * corruption if needed.
- */
- tmp_buff = (uint8_t *) malloc(total_u32 << 2);
+ /* Read the value transferred to DTRTX. */
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DTRTX, data);
+ if (retval != ERROR_OK)
+ return retval;
+
+ return ERROR_OK;
+}
+static int cortex_a_read_dfar_dfsr(struct target *target, uint32_t *dfar,
+ uint32_t *dfsr, uint32_t *dscr)
+{
+ int retval;
- if ((start_byte != 0) && (total_u32 > 1)) {
- /* First bytes not aligned - read the 32 bit word to avoid corrupting
- * the other bytes in the word.
- */
- retval = cortex_a8_read_apb_ab_memory(target, (address & ~0x3), 4, 1, tmp_buff);
+ if (dfar) {
+ retval = cortex_a_read_copro(target, ARMV4_5_MRC(15, 0, 0, 6, 0, 0), dfar, dscr);
if (retval != ERROR_OK)
- goto error_free_buff_w;
+ return retval;
}
- /* If end of write is not aligned, or the write is less than 4 bytes */
- if ((end_byte != 0) ||
- ((total_u32 == 1) && (total_bytes != 4))) {
-
- /* Read the last word to avoid corruption during 32 bit write */
- int mem_offset = (total_u32-1) << 4;
- retval = cortex_a8_read_apb_ab_memory(target, (address & ~0x3) + mem_offset, 4, 1, &tmp_buff[mem_offset]);
+ if (dfsr) {
+ retval = cortex_a_read_copro(target, ARMV4_5_MRC(15, 0, 0, 5, 0, 0), dfsr, dscr);
if (retval != ERROR_OK)
- goto error_free_buff_w;
+ return retval;
}
- /* Copy the write buffer over the top of the temporary buffer */
- memcpy(&tmp_buff[start_byte], buffer, total_bytes);
+ return ERROR_OK;
+}
- /* We now have a 32 bit aligned buffer that can be written */
+static int cortex_a_write_copro(struct target *target, uint32_t opcode,
+ uint32_t data, uint32_t *dscr)
+{
+ int retval;
+ struct armv7a_common *armv7a = target_to_armv7a(target);
- /* Read DSCR */
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, &dscr);
+ /* Write the value into DTRRX. */
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DTRRX, data);
if (retval != ERROR_OK)
- goto error_free_buff_w;
+ return retval;
- /* Set DTR mode to Fast (2) */
- dscr = (dscr & ~DSCR_EXT_DCC_MASK) | DSCR_EXT_DCC_FAST_MODE;
- retval = mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, dscr);
+ /* Move from DTRRX to R0. */
+ retval = cortex_a_exec_opcode(target, ARMV4_5_MRC(14, 0, 0, 0, 5, 0), dscr);
if (retval != ERROR_OK)
- goto error_free_buff_w;
+ return retval;
- /* Copy the destination address into R0 */
- /* - pend an instruction MRC p14, 0, R0, c5, c0 */
- retval = mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_ITR, ARMV4_5_MRC(14, 0, 0, 0, 5, 0));
+ /* Move from R0 to coprocessor. */
+ retval = cortex_a_exec_opcode(target, opcode, dscr);
if (retval != ERROR_OK)
- goto error_unset_dtr_w;
- /* Write address into DTRRX, which triggers previous instruction */
- retval = mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DTRRX, address & (~0x3));
+ return retval;
+
+ /* Wait until DTRRX is empty (according to ARMv7-A/-R architecture manual
+ * section C8.4.3, checking InstrCmpl_l is not sufficient; one must also
+ * check RXfull_l). Most of the time this will be free because RXfull_l
+ * will be cleared immediately and cached in dscr. */
+ retval = cortex_a_wait_dscr_bits(target, DSCR_DTRRX_FULL_LATCHED, 0, dscr);
if (retval != ERROR_OK)
- goto error_unset_dtr_w;
+ return retval;
- /* Write the data transfer instruction into the ITR
- * (STC p14, c5, [R0], 4)
- */
- retval = mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_ITR, ARMV4_5_STC(0, 1, 0, 1, 14, 5, 0, 4));
+ return ERROR_OK;
+}
+
+static int cortex_a_write_dfar_dfsr(struct target *target, uint32_t dfar,
+ uint32_t dfsr, uint32_t *dscr)
+{
+ int retval;
+
+ retval = cortex_a_write_copro(target, ARMV4_5_MCR(15, 0, 0, 6, 0, 0), dfar, dscr);
if (retval != ERROR_OK)
- goto error_unset_dtr_w;
+ return retval;
- /* Do the write */
- retval = mem_ap_sel_write_buf_u32_noincr(swjdp, armv7a->debug_ap,
- tmp_buff, (total_u32)<<2, armv7a->debug_base + CPUDBG_DTRRX);
+ retval = cortex_a_write_copro(target, ARMV4_5_MCR(15, 0, 0, 5, 0, 0), dfsr, dscr);
if (retval != ERROR_OK)
- goto error_unset_dtr_w;
+ return retval;
+ return ERROR_OK;
+}
- /* Switch DTR mode back to non-blocking (0) */
- dscr = (dscr & ~DSCR_EXT_DCC_MASK) | DSCR_EXT_DCC_NON_BLOCKING;
- retval = mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, dscr);
- if (retval != ERROR_OK)
- goto error_unset_dtr_w;
+static int cortex_a_dfsr_to_error_code(uint32_t dfsr)
+{
+ uint32_t status, upper4;
- /* Check for sticky abort flags in the DSCR */
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, &dscr);
+ if (dfsr & (1 << 9)) {
+ /* LPAE format. */
+ status = dfsr & 0x3f;
+ upper4 = status >> 2;
+ if (upper4 == 1 || upper4 == 2 || upper4 == 3 || upper4 == 15)
+ return ERROR_TARGET_TRANSLATION_FAULT;
+ else if (status == 33)
+ return ERROR_TARGET_UNALIGNED_ACCESS;
+ else
+ return ERROR_TARGET_DATA_ABORT;
+ } else {
+ /* Normal format. */
+ status = ((dfsr >> 6) & 0x10) | (dfsr & 0xf);
+ if (status == 1)
+ return ERROR_TARGET_UNALIGNED_ACCESS;
+ else if (status == 5 || status == 7 || status == 3 || status == 6 ||
+ status == 9 || status == 11 || status == 13 || status == 15)
+ return ERROR_TARGET_TRANSLATION_FAULT;
+ else
+ return ERROR_TARGET_DATA_ABORT;
+ }
+}
+
+static int cortex_a_write_cpu_memory_slow(struct target *target,
+ uint32_t size, uint32_t count, const uint8_t *buffer, uint32_t *dscr)
+{
+ /* Writes count objects of size size from *buffer. Old value of DSCR must
+ * be in *dscr; updated to new value. This is slow because it works for
+ * non-word-sized objects and (maybe) unaligned accesses. If size == 4 and
+ * the address is aligned, cortex_a_write_cpu_memory_fast should be
+ * preferred.
+ * Preconditions:
+ * - Address is in R0.
+ * - R0 is marked dirty.
+ */
+ struct armv7a_common *armv7a = target_to_armv7a(target);
+ struct arm *arm = &armv7a->arm;
+ int retval;
+
+ /* Mark register R1 as dirty, to use for transferring data. */
+ arm_reg_current(arm, 1)->dirty = true;
+
+ /* Switch to non-blocking mode if not already in that mode. */
+ retval = cortex_a_set_dcc_mode(target, DSCR_EXT_DCC_NON_BLOCKING, dscr);
if (retval != ERROR_OK)
- goto error_free_buff_w;
- if (dscr & (DSCR_STICKY_ABORT_PRECISE | DSCR_STICKY_ABORT_IMPRECISE)) {
- /* Abort occurred - clear it and exit */
- LOG_ERROR("abort occurred - dscr = 0x%08x", dscr);
- mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DRCR, 1<<2);
- goto error_free_buff_w;
+ return retval;
+
+ /* Go through the objects. */
+ while (count) {
+ /* Write the value to store into DTRRX. */
+ uint32_t data, opcode;
+ if (size == 1)
+ data = *buffer;
+ else if (size == 2)
+ data = target_buffer_get_u16(target, buffer);
+ else
+ data = target_buffer_get_u32(target, buffer);
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DTRRX, data);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Transfer the value from DTRRX to R1. */
+ retval = cortex_a_exec_opcode(target, ARMV4_5_MRC(14, 0, 1, 0, 5, 0), dscr);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Write the value transferred to R1 into memory. */
+ if (size == 1)
+ opcode = ARMV4_5_STRB_IP(1, 0);
+ else if (size == 2)
+ opcode = ARMV4_5_STRH_IP(1, 0);
+ else
+ opcode = ARMV4_5_STRW_IP(1, 0);
+ retval = cortex_a_exec_opcode(target, opcode, dscr);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Check for faults and return early. */
+ if (*dscr & (DSCR_STICKY_ABORT_PRECISE | DSCR_STICKY_ABORT_IMPRECISE))
+ return ERROR_OK; /* A data fault is not considered a system failure. */
+
+ /* Wait until DTRRX is empty (according to ARMv7-A/-R architecture
+ * manual section C8.4.3, checking InstrCmpl_l is not sufficient; one
+ * must also check RXfull_l). Most of the time this will be free
+ * because RXfull_l will be cleared immediately and cached in dscr. */
+ retval = cortex_a_wait_dscr_bits(target, DSCR_DTRRX_FULL_LATCHED, 0, dscr);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Advance. */
+ buffer += size;
+ --count;
}
- /* Done */
- free(tmp_buff);
return ERROR_OK;
+}
-error_unset_dtr_w:
- /* Unset DTR mode */
- mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, &dscr);
- dscr = (dscr & ~DSCR_EXT_DCC_MASK) | DSCR_EXT_DCC_NON_BLOCKING;
- mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, dscr);
-error_free_buff_w:
- LOG_ERROR("error");
- free(tmp_buff);
- return ERROR_FAIL;
+static int cortex_a_write_cpu_memory_fast(struct target *target,
+ uint32_t count, const uint8_t *buffer, uint32_t *dscr)
+{
+ /* Writes count objects of size 4 from *buffer. Old value of DSCR must be
+ * in *dscr; updated to new value. This is fast but only works for
+ * word-sized objects at aligned addresses.
+ * Preconditions:
+ * - Address is in R0 and must be a multiple of 4.
+ * - R0 is marked dirty.
+ */
+ struct armv7a_common *armv7a = target_to_armv7a(target);
+ int retval;
+
+ /* Switch to fast mode if not already in that mode. */
+ retval = cortex_a_set_dcc_mode(target, DSCR_EXT_DCC_FAST_MODE, dscr);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Latch STC instruction. */
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_ITR, ARMV4_5_STC(0, 1, 0, 1, 14, 5, 0, 4));
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Transfer all the data and issue all the instructions. */
+ return mem_ap_write_buf_noincr(armv7a->debug_ap, buffer,
+ 4, count, armv7a->debug_base + CPUDBG_DTRRX);
}
-static int cortex_a8_read_apb_ab_memory(struct target *target,
+static int cortex_a_write_cpu_memory(struct target *target,
uint32_t address, uint32_t size,
- uint32_t count, uint8_t *buffer)
+ uint32_t count, const uint8_t *buffer)
{
- /* read memory through APB-AP */
-
- int retval = ERROR_COMMAND_SYNTAX_ERROR;
+ /* Write memory through the CPU. */
+ int retval, final_retval;
struct armv7a_common *armv7a = target_to_armv7a(target);
- struct adiv5_dap *swjdp = armv7a->arm.dap;
struct arm *arm = &armv7a->arm;
- int total_bytes = count * size;
- int total_u32;
- int start_byte = address & 0x3;
- struct reg *reg;
- uint32_t dscr;
- uint32_t *tmp_buff;
- uint32_t buff32[2];
+ uint32_t dscr, orig_dfar, orig_dfsr, fault_dscr, fault_dfar, fault_dfsr;
+
+ LOG_DEBUG("Writing CPU memory address 0x%" PRIx32 " size %" PRIu32 " count %" PRIu32,
+ address, size, count);
if (target->state != TARGET_HALTED) {
LOG_WARNING("target not halted");
return ERROR_TARGET_NOT_HALTED;
}
- total_u32 = DIV_ROUND_UP((address & 3) + total_bytes, 4);
+ if (!count)
+ return ERROR_OK;
- /* Due to offset word alignment, the buffer may not have space
- * to read the full first and last int32 words,
- * hence, malloc space to read into, then copy and align into the buffer.
- */
- tmp_buff = malloc(total_u32 * 4);
- if (tmp_buff == NULL)
- return ERROR_FAIL;
+ /* Clear any abort. */
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DRCR, DRCR_CLEAR_EXCEPTIONS);
+ if (retval != ERROR_OK)
+ return retval;
- /* Mark register R0 as dirty, as it will be used
- * for transferring the data.
- * It will be restored automatically when exiting
- * debug mode
- */
- reg = arm_reg_current(arm, 0);
- reg->dirty = true;
+ /* Read DSCR. */
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DSCR, &dscr);
+ if (retval != ERROR_OK)
+ return retval;
- /* clear any abort */
- retval =
- mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap, armv7a->debug_base + CPUDBG_DRCR, 1<<2);
+ /* Switch to non-blocking mode if not already in that mode. */
+ retval = cortex_a_set_dcc_mode(target, DSCR_EXT_DCC_NON_BLOCKING, &dscr);
if (retval != ERROR_OK)
- goto error_free_buff_r;
+ goto out;
- /* Read DSCR */
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, &dscr);
+ /* Mark R0 as dirty. */
+ arm_reg_current(arm, 0)->dirty = true;
- /* This algorithm comes from either :
- * Cortex-A8 TRM Example 12-24
- * Cortex-R4 TRM Example 11-25
- * (slight differences)
- */
+ /* Read DFAR and DFSR, as they will be modified in the event of a fault. */
+ retval = cortex_a_read_dfar_dfsr(target, &orig_dfar, &orig_dfsr, &dscr);
+ if (retval != ERROR_OK)
+ goto out;
- /* Set DTR access mode to stall mode b01 */
- dscr = (dscr & ~DSCR_EXT_DCC_MASK) | DSCR_EXT_DCC_STALL_MODE;
- retval += mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, dscr);
+ /* Get the memory address into R0. */
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DTRRX, address);
+ if (retval != ERROR_OK)
+ goto out;
+ retval = cortex_a_exec_opcode(target, ARMV4_5_MRC(14, 0, 0, 0, 5, 0), &dscr);
+ if (retval != ERROR_OK)
+ goto out;
+
+ if (size == 4 && (address % 4) == 0) {
+ /* We are doing a word-aligned transfer, so use fast mode. */
+ retval = cortex_a_write_cpu_memory_fast(target, count, buffer, &dscr);
+ } else {
+ /* Use slow path. */
+ retval = cortex_a_write_cpu_memory_slow(target, size, count, buffer, &dscr);
+ }
+
+out:
+ final_retval = retval;
+
+ /* Switch to non-blocking mode if not already in that mode. */
+ retval = cortex_a_set_dcc_mode(target, DSCR_EXT_DCC_NON_BLOCKING, &dscr);
+ if (final_retval == ERROR_OK)
+ final_retval = retval;
+
+ /* Wait for last issued instruction to complete. */
+ retval = cortex_a_wait_instrcmpl(target, &dscr, true);
+ if (final_retval == ERROR_OK)
+ final_retval = retval;
+
+ /* Wait until DTRRX is empty (according to ARMv7-A/-R architecture manual
+ * section C8.4.3, checking InstrCmpl_l is not sufficient; one must also
+ * check RXfull_l). Most of the time this will be free because RXfull_l
+ * will be cleared immediately and cached in dscr. However, don't do this
+ * if there is fault, because then the instruction might not have completed
+ * successfully. */
+ if (!(dscr & DSCR_STICKY_ABORT_PRECISE)) {
+ retval = cortex_a_wait_dscr_bits(target, DSCR_DTRRX_FULL_LATCHED, 0, &dscr);
+ if (retval != ERROR_OK)
+ return retval;
+ }
+
+ /* If there were any sticky abort flags, clear them. */
+ if (dscr & (DSCR_STICKY_ABORT_PRECISE | DSCR_STICKY_ABORT_IMPRECISE)) {
+ fault_dscr = dscr;
+ mem_ap_write_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DRCR, DRCR_CLEAR_EXCEPTIONS);
+ dscr &= ~(DSCR_STICKY_ABORT_PRECISE | DSCR_STICKY_ABORT_IMPRECISE);
+ } else {
+ fault_dscr = 0;
+ }
- /* Write R0 with value 'address' using write procedure for stall mode */
- /* - Write the address for read access into DTRRX */
- retval += mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DTRRX, address & ~0x3);
- /* - Copy value from DTRRX to R0 using instruction mrc p14, 0, r0, c5, c0 */
- cortex_a8_exec_opcode(target, ARMV4_5_MRC(14, 0, 0, 0, 5, 0), &dscr);
+ /* Handle synchronous data faults. */
+ if (fault_dscr & DSCR_STICKY_ABORT_PRECISE) {
+ if (final_retval == ERROR_OK) {
+ /* Final return value will reflect cause of fault. */
+ retval = cortex_a_read_dfar_dfsr(target, &fault_dfar, &fault_dfsr, &dscr);
+ if (retval == ERROR_OK) {
+ LOG_ERROR("data abort at 0x%08" PRIx32 ", dfsr = 0x%08" PRIx32, fault_dfar, fault_dfsr);
+ final_retval = cortex_a_dfsr_to_error_code(fault_dfsr);
+ } else
+ final_retval = retval;
+ }
+ /* Fault destroyed DFAR/DFSR; restore them. */
+ retval = cortex_a_write_dfar_dfsr(target, orig_dfar, orig_dfsr, &dscr);
+ if (retval != ERROR_OK)
+ LOG_ERROR("error restoring dfar/dfsr - dscr = 0x%08" PRIx32, dscr);
+ }
+
+ /* Handle asynchronous data faults. */
+ if (fault_dscr & DSCR_STICKY_ABORT_IMPRECISE) {
+ if (final_retval == ERROR_OK)
+ /* No other error has been recorded so far, so keep this one. */
+ final_retval = ERROR_TARGET_DATA_ABORT;
+ }
+
+ /* If the DCC is nonempty, clear it. */
+ if (dscr & DSCR_DTRTX_FULL_LATCHED) {
+ uint32_t dummy;
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DTRTX, &dummy);
+ if (final_retval == ERROR_OK)
+ final_retval = retval;
+ }
+ if (dscr & DSCR_DTRRX_FULL_LATCHED) {
+ retval = cortex_a_exec_opcode(target, ARMV4_5_MRC(14, 0, 1, 0, 5, 0), &dscr);
+ if (final_retval == ERROR_OK)
+ final_retval = retval;
+ }
+ /* Done. */
+ return final_retval;
+}
- /* Write the data transfer instruction (ldc p14, c5, [r0],4)
- * and the DTR mode setting to fast mode
- * in one combined write (since they are adjacent registers)
+static int cortex_a_read_cpu_memory_slow(struct target *target,
+ uint32_t size, uint32_t count, uint8_t *buffer, uint32_t *dscr)
+{
+ /* Reads count objects of size size into *buffer. Old value of DSCR must be
+ * in *dscr; updated to new value. This is slow because it works for
+ * non-word-sized objects and (maybe) unaligned accesses. If size == 4 and
+ * the address is aligned, cortex_a_read_cpu_memory_fast should be
+ * preferred.
+ * Preconditions:
+ * - Address is in R0.
+ * - R0 is marked dirty.
*/
- buff32[0] = ARMV4_5_LDC(0, 1, 0, 1, 14, 5, 0, 4);
- dscr = (dscr & ~DSCR_EXT_DCC_MASK) | DSCR_EXT_DCC_FAST_MODE;
- buff32[1] = dscr;
- /* group the 2 access CPUDBG_ITR 0x84 and CPUDBG_DSCR 0x88 */
- retval += mem_ap_sel_write_buf_u32(swjdp, armv7a->debug_ap, (uint8_t *)buff32, 8,
- armv7a->debug_base + CPUDBG_ITR);
+ struct armv7a_common *armv7a = target_to_armv7a(target);
+ struct arm *arm = &armv7a->arm;
+ int retval;
+
+ /* Mark register R1 as dirty, to use for transferring data. */
+ arm_reg_current(arm, 1)->dirty = true;
+
+ /* Switch to non-blocking mode if not already in that mode. */
+ retval = cortex_a_set_dcc_mode(target, DSCR_EXT_DCC_NON_BLOCKING, dscr);
if (retval != ERROR_OK)
- goto error_unset_dtr_r;
+ return retval;
+
+ /* Go through the objects. */
+ while (count) {
+ /* Issue a load of the appropriate size to R1. */
+ uint32_t opcode, data;
+ if (size == 1)
+ opcode = ARMV4_5_LDRB_IP(1, 0);
+ else if (size == 2)
+ opcode = ARMV4_5_LDRH_IP(1, 0);
+ else
+ opcode = ARMV4_5_LDRW_IP(1, 0);
+ retval = cortex_a_exec_opcode(target, opcode, dscr);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Issue a write of R1 to DTRTX. */
+ retval = cortex_a_exec_opcode(target, ARMV4_5_MCR(14, 0, 1, 0, 5, 0), dscr);
+ if (retval != ERROR_OK)
+ return retval;
+ /* Check for faults and return early. */
+ if (*dscr & (DSCR_STICKY_ABORT_PRECISE | DSCR_STICKY_ABORT_IMPRECISE))
+ return ERROR_OK; /* A data fault is not considered a system failure. */
- /* The last word needs to be handled separately - read all other words in one go.
+ /* Wait until DTRTX is full (according to ARMv7-A/-R architecture
+ * manual section C8.4.3, checking InstrCmpl_l is not sufficient; one
+ * must also check TXfull_l). Most of the time this will be free
+ * because TXfull_l will be set immediately and cached in dscr. */
+ retval = cortex_a_wait_dscr_bits(target, DSCR_DTRTX_FULL_LATCHED,
+ DSCR_DTRTX_FULL_LATCHED, dscr);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Read the value transferred to DTRTX into the buffer. */
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DTRTX, &data);
+ if (retval != ERROR_OK)
+ return retval;
+ if (size == 1)
+ *buffer = (uint8_t) data;
+ else if (size == 2)
+ target_buffer_set_u16(target, buffer, (uint16_t) data);
+ else
+ target_buffer_set_u32(target, buffer, data);
+
+ /* Advance. */
+ buffer += size;
+ --count;
+ }
+
+ return ERROR_OK;
+}
+
+static int cortex_a_read_cpu_memory_fast(struct target *target,
+ uint32_t count, uint8_t *buffer, uint32_t *dscr)
+{
+ /* Reads count objects of size 4 into *buffer. Old value of DSCR must be in
+ * *dscr; updated to new value. This is fast but only works for word-sized
+ * objects at aligned addresses.
+ * Preconditions:
+ * - Address is in R0 and must be a multiple of 4.
+ * - R0 is marked dirty.
*/
- if (total_u32 > 1) {
- /* Read the data - Each read of the DTRTX register causes the instruction to be reissued
- * Abort flags are sticky, so can be read at end of transactions
- *
- * This data is read in aligned to 32 bit boundary, hence may need shifting later.
+ struct armv7a_common *armv7a = target_to_armv7a(target);
+ uint32_t u32;
+ int retval;
+
+ /* Switch to non-blocking mode if not already in that mode. */
+ retval = cortex_a_set_dcc_mode(target, DSCR_EXT_DCC_NON_BLOCKING, dscr);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Issue the LDC instruction via a write to ITR. */
+ retval = cortex_a_exec_opcode(target, ARMV4_5_LDC(0, 1, 0, 1, 14, 5, 0, 4), dscr);
+ if (retval != ERROR_OK)
+ return retval;
+
+ count--;
+
+ if (count > 0) {
+ /* Switch to fast mode if not already in that mode. */
+ retval = cortex_a_set_dcc_mode(target, DSCR_EXT_DCC_FAST_MODE, dscr);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Latch LDC instruction. */
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_ITR, ARMV4_5_LDC(0, 1, 0, 1, 14, 5, 0, 4));
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Read the value transferred to DTRTX into the buffer. Due to fast
+ * mode rules, this blocks until the instruction finishes executing and
+ * then reissues the read instruction to read the next word from
+ * memory. The last read of DTRTX in this call reads the second-to-last
+ * word from memory and issues the read instruction for the last word.
*/
- retval = mem_ap_sel_read_buf_u32_noincr(swjdp, armv7a->debug_ap, (uint8_t *)tmp_buff, (total_u32-1) * 4,
- armv7a->debug_base + CPUDBG_DTRTX);
+ retval = mem_ap_read_buf_noincr(armv7a->debug_ap, buffer,
+ 4, count, armv7a->debug_base + CPUDBG_DTRTX);
if (retval != ERROR_OK)
- goto error_unset_dtr_r;
+ return retval;
+
+ /* Advance. */
+ buffer += count * 4;
}
- /* set DTR access mode back to non blocking b00 */
- dscr = (dscr & ~DSCR_EXT_DCC_MASK) | DSCR_EXT_DCC_NON_BLOCKING;
- retval = mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, dscr);
+ /* Wait for last issued instruction to complete. */
+ retval = cortex_a_wait_instrcmpl(target, dscr, false);
if (retval != ERROR_OK)
- goto error_free_buff_r;
+ return retval;
- /* Wait for the final read instruction to finish */
- do {
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, &dscr);
- if (retval != ERROR_OK)
- goto error_free_buff_r;
- } while ((dscr & DSCR_INSTR_COMP) == 0);
+ /* Switch to non-blocking mode if not already in that mode. */
+ retval = cortex_a_set_dcc_mode(target, DSCR_EXT_DCC_NON_BLOCKING, dscr);
+ if (retval != ERROR_OK)
+ return retval;
+ /* Check for faults and return early. */
+ if (*dscr & (DSCR_STICKY_ABORT_PRECISE | DSCR_STICKY_ABORT_IMPRECISE))
+ return ERROR_OK; /* A data fault is not considered a system failure. */
- /* Check for sticky abort flags in the DSCR */
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, &dscr);
+ /* Wait until DTRTX is full (according to ARMv7-A/-R architecture manual
+ * section C8.4.3, checking InstrCmpl_l is not sufficient; one must also
+ * check TXfull_l). Most of the time this will be free because TXfull_l
+ * will be set immediately and cached in dscr. */
+ retval = cortex_a_wait_dscr_bits(target, DSCR_DTRTX_FULL_LATCHED,
+ DSCR_DTRTX_FULL_LATCHED, dscr);
if (retval != ERROR_OK)
- goto error_free_buff_r;
- if (dscr & (DSCR_STICKY_ABORT_PRECISE | DSCR_STICKY_ABORT_IMPRECISE)) {
- /* Abort occurred - clear it and exit */
- LOG_ERROR("abort occurred - dscr = 0x%08x", dscr);
- mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DRCR, 1<<2);
- goto error_free_buff_r;
+ return retval;
+
+ /* Read the value transferred to DTRTX into the buffer. This is the last
+ * word. */
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DTRTX, &u32);
+ if (retval != ERROR_OK)
+ return retval;
+ target_buffer_set_u32(target, buffer, u32);
+
+ return ERROR_OK;
+}
+
+static int cortex_a_read_cpu_memory(struct target *target,
+ uint32_t address, uint32_t size,
+ uint32_t count, uint8_t *buffer)
+{
+ /* Read memory through the CPU. */
+ int retval, final_retval;
+ struct armv7a_common *armv7a = target_to_armv7a(target);
+ struct arm *arm = &armv7a->arm;
+ uint32_t dscr, orig_dfar, orig_dfsr, fault_dscr, fault_dfar, fault_dfsr;
+
+ LOG_DEBUG("Reading CPU memory address 0x%" PRIx32 " size %" PRIu32 " count %" PRIu32,
+ address, size, count);
+ if (target->state != TARGET_HALTED) {
+ LOG_WARNING("target not halted");
+ return ERROR_TARGET_NOT_HALTED;
}
- /* Read the last word */
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DTRTX, &tmp_buff[total_u32 - 1]);
+ if (!count)
+ return ERROR_OK;
+
+ /* Clear any abort. */
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DRCR, DRCR_CLEAR_EXCEPTIONS);
if (retval != ERROR_OK)
- goto error_free_buff_r;
+ return retval;
- /* Copy and align the data into the output buffer */
- memcpy(buffer, (uint8_t *)tmp_buff + start_byte, total_bytes);
+ /* Read DSCR */
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DSCR, &dscr);
+ if (retval != ERROR_OK)
+ return retval;
- free(tmp_buff);
+ /* Switch to non-blocking mode if not already in that mode. */
+ retval = cortex_a_set_dcc_mode(target, DSCR_EXT_DCC_NON_BLOCKING, &dscr);
+ if (retval != ERROR_OK)
+ goto out;
- /* Done */
- return ERROR_OK;
+ /* Mark R0 as dirty. */
+ arm_reg_current(arm, 0)->dirty = true;
+ /* Read DFAR and DFSR, as they will be modified in the event of a fault. */
+ retval = cortex_a_read_dfar_dfsr(target, &orig_dfar, &orig_dfsr, &dscr);
+ if (retval != ERROR_OK)
+ goto out;
-error_unset_dtr_r:
- /* Unset DTR mode */
- mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, &dscr);
- dscr = (dscr & ~DSCR_EXT_DCC_MASK) | DSCR_EXT_DCC_NON_BLOCKING;
- mem_ap_sel_write_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DSCR, dscr);
-error_free_buff_r:
- LOG_ERROR("error");
- free(tmp_buff);
- return ERROR_FAIL;
+ /* Get the memory address into R0. */
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DTRRX, address);
+ if (retval != ERROR_OK)
+ goto out;
+ retval = cortex_a_exec_opcode(target, ARMV4_5_MRC(14, 0, 0, 0, 5, 0), &dscr);
+ if (retval != ERROR_OK)
+ goto out;
+
+ if (size == 4 && (address % 4) == 0) {
+ /* We are doing a word-aligned transfer, so use fast mode. */
+ retval = cortex_a_read_cpu_memory_fast(target, count, buffer, &dscr);
+ } else {
+ /* Use slow path. */
+ retval = cortex_a_read_cpu_memory_slow(target, size, count, buffer, &dscr);
+ }
+
+out:
+ final_retval = retval;
+
+ /* Switch to non-blocking mode if not already in that mode. */
+ retval = cortex_a_set_dcc_mode(target, DSCR_EXT_DCC_NON_BLOCKING, &dscr);
+ if (final_retval == ERROR_OK)
+ final_retval = retval;
+
+ /* Wait for last issued instruction to complete. */
+ retval = cortex_a_wait_instrcmpl(target, &dscr, true);
+ if (final_retval == ERROR_OK)
+ final_retval = retval;
+
+ /* If there were any sticky abort flags, clear them. */
+ if (dscr & (DSCR_STICKY_ABORT_PRECISE | DSCR_STICKY_ABORT_IMPRECISE)) {
+ fault_dscr = dscr;
+ mem_ap_write_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DRCR, DRCR_CLEAR_EXCEPTIONS);
+ dscr &= ~(DSCR_STICKY_ABORT_PRECISE | DSCR_STICKY_ABORT_IMPRECISE);
+ } else {
+ fault_dscr = 0;
+ }
+
+ /* Handle synchronous data faults. */
+ if (fault_dscr & DSCR_STICKY_ABORT_PRECISE) {
+ if (final_retval == ERROR_OK) {
+ /* Final return value will reflect cause of fault. */
+ retval = cortex_a_read_dfar_dfsr(target, &fault_dfar, &fault_dfsr, &dscr);
+ if (retval == ERROR_OK) {
+ LOG_ERROR("data abort at 0x%08" PRIx32 ", dfsr = 0x%08" PRIx32, fault_dfar, fault_dfsr);
+ final_retval = cortex_a_dfsr_to_error_code(fault_dfsr);
+ } else
+ final_retval = retval;
+ }
+ /* Fault destroyed DFAR/DFSR; restore them. */
+ retval = cortex_a_write_dfar_dfsr(target, orig_dfar, orig_dfsr, &dscr);
+ if (retval != ERROR_OK)
+ LOG_ERROR("error restoring dfar/dfsr - dscr = 0x%08" PRIx32, dscr);
+ }
+
+ /* Handle asynchronous data faults. */
+ if (fault_dscr & DSCR_STICKY_ABORT_IMPRECISE) {
+ if (final_retval == ERROR_OK)
+ /* No other error has been recorded so far, so keep this one. */
+ final_retval = ERROR_TARGET_DATA_ABORT;
+ }
+
+ /* If the DCC is nonempty, clear it. */
+ if (dscr & DSCR_DTRTX_FULL_LATCHED) {
+ uint32_t dummy;
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DTRTX, &dummy);
+ if (final_retval == ERROR_OK)
+ final_retval = retval;
+ }
+ if (dscr & DSCR_DTRRX_FULL_LATCHED) {
+ retval = cortex_a_exec_opcode(target, ARMV4_5_MRC(14, 0, 1, 0, 5, 0), &dscr);
+ if (final_retval == ERROR_OK)
+ final_retval = retval;
+ }
+
+ /* Done. */
+ return final_retval;
}
/*
- * Cortex-A8 Memory access
+ * Cortex-A Memory access
*
- * This is same Cortex M3 but we must also use the correct
+ * This is same Cortex-M3 but we must also use the correct
* ap number for every access.
*/
-static int cortex_a8_read_phys_memory(struct target *target,
- uint32_t address, uint32_t size,
+static int cortex_a_read_phys_memory(struct target *target,
+ target_addr_t address, uint32_t size,
uint32_t count, uint8_t *buffer)
{
- struct armv7a_common *armv7a = target_to_armv7a(target);
- struct adiv5_dap *swjdp = armv7a->arm.dap;
- int retval = ERROR_COMMAND_SYNTAX_ERROR;
- uint8_t apsel = swjdp->apsel;
- LOG_DEBUG("Reading memory at real address 0x%x; size %d; count %d",
+ int retval;
+
+ if (!count || !buffer)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ LOG_DEBUG("Reading memory at real address " TARGET_ADDR_FMT "; size %" PRId32 "; count %" PRId32,
address, size, count);
- if (count && buffer) {
-
- if (armv7a->memory_ap_available && (apsel == armv7a->memory_ap)) {
-
- /* read memory through AHB-AP */
-
- switch (size) {
- case 4:
- retval = mem_ap_sel_read_buf_u32(swjdp, armv7a->memory_ap,
- buffer, 4 * count, address);
- break;
- case 2:
- retval = mem_ap_sel_read_buf_u16(swjdp, armv7a->memory_ap,
- buffer, 2 * count, address);
- break;
- case 1:
- retval = mem_ap_sel_read_buf_u8(swjdp, armv7a->memory_ap,
- buffer, count, address);
- break;
- }
- } else {
+ /* read memory through the CPU */
+ cortex_a_prep_memaccess(target, 1);
+ retval = cortex_a_read_cpu_memory(target, address, size, count, buffer);
+ cortex_a_post_memaccess(target, 1);
- /* read memory through APB-AP */
- if (!armv7a->is_armv7r) {
- /* disable mmu */
- retval = cortex_a8_mmu_modify(target, 0);
- if (retval != ERROR_OK)
- return retval;
- }
- retval = cortex_a8_read_apb_ab_memory(target, address, size, count, buffer);
- }
- }
return retval;
}
-static int cortex_a8_read_memory(struct target *target, uint32_t address,
+static int cortex_a_read_memory(struct target *target, target_addr_t address,
uint32_t size, uint32_t count, uint8_t *buffer)
{
- int enabled = 0;
- uint32_t virt, phys;
int retval;
- struct armv7a_common *armv7a = target_to_armv7a(target);
- struct adiv5_dap *swjdp = armv7a->arm.dap;
- uint8_t apsel = swjdp->apsel;
-
- /* cortex_a8 handles unaligned memory access */
- LOG_DEBUG("Reading memory at address 0x%x; size %d; count %d", address,
- size, count);
- if (armv7a->memory_ap_available && (apsel == armv7a->memory_ap)) {
- if (!armv7a->is_armv7r) {
- retval = cortex_a8_mmu(target, &enabled);
- if (retval != ERROR_OK)
- return retval;
+ /* cortex_a handles unaligned memory access */
+ LOG_DEBUG("Reading memory at address " TARGET_ADDR_FMT "; size %" PRId32 "; count %" PRId32,
+ address, size, count);
- if (enabled) {
- virt = address;
- retval = cortex_a8_virt2phys(target, virt, &phys);
- if (retval != ERROR_OK)
- return retval;
+ cortex_a_prep_memaccess(target, 0);
+ retval = cortex_a_read_cpu_memory(target, address, size, count, buffer);
+ cortex_a_post_memaccess(target, 0);
- LOG_DEBUG("Reading at virtual address. Translating v:0x%x to r:0x%x",
- virt, phys);
- address = phys;
- }
- }
- retval = cortex_a8_read_phys_memory(target, address, size, count, buffer);
- } else {
- if (!armv7a->is_armv7r) {
- retval = cortex_a8_check_address(target, address);
- if (retval != ERROR_OK)
- return retval;
- /* enable mmu */
- retval = cortex_a8_mmu_modify(target, 1);
- if (retval != ERROR_OK)
- return retval;
- }
- retval = cortex_a8_read_apb_ab_memory(target, address, size, count, buffer);
- }
return retval;
}
-static int cortex_a8_write_phys_memory(struct target *target,
- uint32_t address, uint32_t size,
+static int cortex_a_write_phys_memory(struct target *target,
+ target_addr_t address, uint32_t size,
uint32_t count, const uint8_t *buffer)
{
- struct armv7a_common *armv7a = target_to_armv7a(target);
- struct adiv5_dap *swjdp = armv7a->arm.dap;
- int retval = ERROR_COMMAND_SYNTAX_ERROR;
- uint8_t apsel = swjdp->apsel;
-
- LOG_DEBUG("Writing memory to real address 0x%x; size %d; count %d", address,
- size, count);
-
- if (count && buffer) {
-
- if (armv7a->memory_ap_available && (apsel == armv7a->memory_ap)) {
-
- /* write memory through AHB-AP */
-
- switch (size) {
- case 4:
- retval = mem_ap_sel_write_buf_u32(swjdp, armv7a->memory_ap,
- buffer, 4 * count, address);
- break;
- case 2:
- retval = mem_ap_sel_write_buf_u16(swjdp, armv7a->memory_ap,
- buffer, 2 * count, address);
- break;
- case 1:
- retval = mem_ap_sel_write_buf_u8(swjdp, armv7a->memory_ap,
- buffer, count, address);
- break;
- }
-
- } else {
-
- /* write memory through APB-AP */
- if (!armv7a->is_armv7r) {
- retval = cortex_a8_mmu_modify(target, 0);
- if (retval != ERROR_OK)
- return retval;
- }
- return cortex_a8_write_apb_ab_memory(target, address, size, count, buffer);
- }
- }
+ int retval;
+ if (!count || !buffer)
+ return ERROR_COMMAND_SYNTAX_ERROR;
- /* REVISIT this op is generic ARMv7-A/R stuff */
- if (retval == ERROR_OK && target->state == TARGET_HALTED) {
- struct arm_dpm *dpm = armv7a->arm.dpm;
+ LOG_DEBUG("Writing memory to real address " TARGET_ADDR_FMT "; size %" PRId32 "; count %" PRId32,
+ address, size, count);
- retval = dpm->prepare(dpm);
- if (retval != ERROR_OK)
- return retval;
+ /* write memory through the CPU */
+ cortex_a_prep_memaccess(target, 1);
+ retval = cortex_a_write_cpu_memory(target, address, size, count, buffer);
+ cortex_a_post_memaccess(target, 1);
- /* The Cache handling will NOT work with MMU active, the
- * wrong addresses will be invalidated!
- *
- * For both ICache and DCache, walk all cache lines in the
- * address range. Cortex-A8 has fixed 64 byte line length.
- *
- * REVISIT per ARMv7, these may trigger watchpoints ...
- */
+ return retval;
+}
- /* invalidate I-Cache */
- if (armv7a->armv7a_mmu.armv7a_cache.i_cache_enabled) {
- /* ICIMVAU - Invalidate Cache single entry
- * with MVA to PoU
- * MCR p15, 0, r0, c7, c5, 1
- */
- for (uint32_t cacheline = address;
- cacheline < address + size * count;
- cacheline += 64) {
- retval = dpm->instr_write_data_r0(dpm,
- ARMV4_5_MCR(15, 0, 0, 7, 5, 1),
- cacheline);
- if (retval != ERROR_OK)
- return retval;
- }
- }
+static int cortex_a_write_memory(struct target *target, target_addr_t address,
+ uint32_t size, uint32_t count, const uint8_t *buffer)
+{
+ int retval;
- /* invalidate D-Cache */
- if (armv7a->armv7a_mmu.armv7a_cache.d_u_cache_enabled) {
- /* DCIMVAC - Invalidate data Cache line
- * with MVA to PoC
- * MCR p15, 0, r0, c7, c6, 1
- */
- for (uint32_t cacheline = address;
- cacheline < address + size * count;
- cacheline += 64) {
- retval = dpm->instr_write_data_r0(dpm,
- ARMV4_5_MCR(15, 0, 0, 7, 6, 1),
- cacheline);
- if (retval != ERROR_OK)
- return retval;
- }
- }
+ /* cortex_a handles unaligned memory access */
+ LOG_DEBUG("Writing memory at address " TARGET_ADDR_FMT "; size %" PRId32 "; count %" PRId32,
+ address, size, count);
- /* (void) */ dpm->finish(dpm);
- }
+ /* memory writes bypass the caches, must flush before writing */
+ armv7a_cache_auto_flush_on_write(target, address, size * count);
+ cortex_a_prep_memaccess(target, 0);
+ retval = cortex_a_write_cpu_memory(target, address, size, count, buffer);
+ cortex_a_post_memaccess(target, 0);
return retval;
}
-static int cortex_a8_write_memory(struct target *target, uint32_t address,
- uint32_t size, uint32_t count, const uint8_t *buffer)
+static int cortex_a_read_buffer(struct target *target, target_addr_t address,
+ uint32_t count, uint8_t *buffer)
{
- int enabled = 0;
- uint32_t virt, phys;
- int retval;
- struct armv7a_common *armv7a = target_to_armv7a(target);
- struct adiv5_dap *swjdp = armv7a->arm.dap;
- uint8_t apsel = swjdp->apsel;
- /* cortex_a8 handles unaligned memory access */
- LOG_DEBUG("Writing memory at address 0x%x; size %d; count %d", address,
- size, count);
- if (armv7a->memory_ap_available && (apsel == armv7a->memory_ap)) {
-
- LOG_DEBUG("Writing memory to address 0x%x; size %d; count %d", address, size,
- count);
- if (!armv7a->is_armv7r) {
- retval = cortex_a8_mmu(target, &enabled);
+ uint32_t size;
+
+ /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
+ * will have something to do with the size we leave to it. */
+ for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
+ if (address & size) {
+ int retval = target_read_memory(target, address, size, 1, buffer);
if (retval != ERROR_OK)
return retval;
+ address += size;
+ count -= size;
+ buffer += size;
+ }
+ }
- if (enabled) {
- virt = address;
- retval = cortex_a8_virt2phys(target, virt, &phys);
- if (retval != ERROR_OK)
- return retval;
- LOG_DEBUG("Writing to virtual address. Translating v:0x%x to r:0x%x",
- virt,
- phys);
- address = phys;
- }
+ /* Read the data with as large access size as possible. */
+ for (; size > 0; size /= 2) {
+ uint32_t aligned = count - count % size;
+ if (aligned > 0) {
+ int retval = target_read_memory(target, address, size, aligned / size, buffer);
+ if (retval != ERROR_OK)
+ return retval;
+ address += aligned;
+ count -= aligned;
+ buffer += aligned;
}
+ }
- retval = cortex_a8_write_phys_memory(target, address, size,
- count, buffer);
- } else {
- if (!armv7a->is_armv7r) {
- retval = cortex_a8_check_address(target, address);
+ return ERROR_OK;
+}
+
+static int cortex_a_write_buffer(struct target *target, target_addr_t address,
+ uint32_t count, const uint8_t *buffer)
+{
+ uint32_t size;
+
+ /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
+ * will have something to do with the size we leave to it. */
+ for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
+ if (address & size) {
+ int retval = target_write_memory(target, address, size, 1, buffer);
if (retval != ERROR_OK)
return retval;
- /* enable mmu */
- retval = cortex_a8_mmu_modify(target, 1);
+ address += size;
+ count -= size;
+ buffer += size;
+ }
+ }
+
+ /* Write the data with as large access size as possible. */
+ for (; size > 0; size /= 2) {
+ uint32_t aligned = count - count % size;
+ if (aligned > 0) {
+ int retval = target_write_memory(target, address, size, aligned / size, buffer);
if (retval != ERROR_OK)
return retval;
+ address += aligned;
+ count -= aligned;
+ buffer += aligned;
}
- retval = cortex_a8_write_apb_ab_memory(target, address, size, count, buffer);
}
- return retval;
+
+ return ERROR_OK;
}
-static int cortex_a8_handle_target_request(void *priv)
+static int cortex_a_handle_target_request(void *priv)
{
struct target *target = priv;
struct armv7a_common *armv7a = target_to_armv7a(target);
- struct adiv5_dap *swjdp = armv7a->arm.dap;
int retval;
if (!target_was_examined(target))
if (target->state == TARGET_RUNNING) {
uint32_t request;
uint32_t dscr;
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_DSCR, &dscr);
/* check if we have data */
+ int64_t then = timeval_ms();
while ((dscr & DSCR_DTR_TX_FULL) && (retval == ERROR_OK)) {
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_DTRTX, &request);
if (retval == ERROR_OK) {
target_request(target, request);
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_DSCR, &dscr);
}
+ if (timeval_ms() > then + 1000) {
+ LOG_ERROR("Timeout waiting for dtr tx full");
+ return ERROR_FAIL;
+ }
}
}
}
/*
- * Cortex-A8 target information and configuration
+ * Cortex-A target information and configuration
*/
-static int cortex_a8_examine_first(struct target *target)
+static int cortex_a_examine_first(struct target *target)
{
- struct cortex_a8_common *cortex_a8 = target_to_cortex_a8(target);
- struct armv7a_common *armv7a = &cortex_a8->armv7a_common;
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
+ struct armv7a_common *armv7a = &cortex_a->armv7a_common;
struct adiv5_dap *swjdp = armv7a->arm.dap;
+
int i;
int retval = ERROR_OK;
- uint32_t didr, ctypr, ttypr, cpuid;
+ uint32_t didr, cpuid, dbg_osreg;
- /* We do one extra read to ensure DAP is configured,
- * we call ahbap_debugport_init(swjdp) instead
- */
- retval = ahbap_debugport_init(swjdp);
- if (retval != ERROR_OK)
- return retval;
-
- /* Search for the APB-AB - it is needed for access to debug registers */
+ /* Search for the APB-AP - it is needed for access to debug registers */
retval = dap_find_ap(swjdp, AP_TYPE_APB_AP, &armv7a->debug_ap);
if (retval != ERROR_OK) {
LOG_ERROR("Could not find APB-AP for debug access");
return retval;
}
- /* Search for the AHB-AB */
- retval = dap_find_ap(swjdp, AP_TYPE_AHB_AP, &armv7a->memory_ap);
+
+ retval = mem_ap_init(armv7a->debug_ap);
if (retval != ERROR_OK) {
- /* AHB-AP not found - use APB-AP */
- LOG_DEBUG("Could not find AHB-AP - using APB-AP for memory access");
- armv7a->memory_ap_available = false;
- } else {
- armv7a->memory_ap_available = true;
+ LOG_ERROR("Could not initialize the APB-AP");
+ return retval;
}
+ armv7a->debug_ap->memaccess_tck = 80;
if (!target->dbgbase_set) {
uint32_t dbgbase;
/* Get ROM Table base */
uint32_t apid;
- retval = dap_get_debugbase(swjdp, 1, &dbgbase, &apid);
+ int32_t coreidx = target->coreid;
+ LOG_DEBUG("%s's dbgbase is not set, trying to detect using the ROM table",
+ target->cmd_name);
+ retval = dap_get_debugbase(armv7a->debug_ap, &dbgbase, &apid);
if (retval != ERROR_OK)
return retval;
/* Lookup 0x15 -- Processor DAP */
- retval = dap_lookup_cs_component(swjdp, 1, dbgbase, 0x15,
- &armv7a->debug_base);
- if (retval != ERROR_OK)
+ retval = dap_lookup_cs_component(armv7a->debug_ap, dbgbase, 0x15,
+ &armv7a->debug_base, &coreidx);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("Can't detect %s's dbgbase from the ROM table; you need to specify it explicitly.",
+ target->cmd_name);
return retval;
+ }
+ LOG_DEBUG("Detected core %" PRId32 " dbgbase: %08" PRIx32,
+ target->coreid, armv7a->debug_base);
} else
armv7a->debug_base = target->dbgbase;
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_CPUID, &cpuid);
- if (retval != ERROR_OK)
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DIDR, &didr);
+ if (retval != ERROR_OK) {
+ LOG_DEBUG("Examine %s failed", "DIDR");
return retval;
+ }
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
armv7a->debug_base + CPUDBG_CPUID, &cpuid);
if (retval != ERROR_OK) {
LOG_DEBUG("Examine %s failed", "CPUID");
return retval;
}
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_CTYPR, &ctypr);
- if (retval != ERROR_OK) {
- LOG_DEBUG("Examine %s failed", "CTYPR");
- return retval;
- }
+ LOG_DEBUG("didr = 0x%08" PRIx32, didr);
+ LOG_DEBUG("cpuid = 0x%08" PRIx32, cpuid);
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_TTYPR, &ttypr);
- if (retval != ERROR_OK) {
- LOG_DEBUG("Examine %s failed", "TTYPR");
- return retval;
- }
+ cortex_a->didr = didr;
+ cortex_a->cpuid = cpuid;
- retval = mem_ap_sel_read_atomic_u32(swjdp, armv7a->debug_ap,
- armv7a->debug_base + CPUDBG_DIDR, &didr);
- if (retval != ERROR_OK) {
- LOG_DEBUG("Examine %s failed", "DIDR");
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_PRSR, &dbg_osreg);
+ if (retval != ERROR_OK)
return retval;
+ LOG_DEBUG("target->coreid %" PRId32 " DBGPRSR 0x%" PRIx32, target->coreid, dbg_osreg);
+
+ if ((dbg_osreg & PRSR_POWERUP_STATUS) == 0) {
+ LOG_ERROR("target->coreid %" PRId32 " powered down!", target->coreid);
+ target->state = TARGET_UNKNOWN; /* TARGET_NO_POWER? */
+ return ERROR_TARGET_INIT_FAILED;
}
- LOG_DEBUG("cpuid = 0x%08" PRIx32, cpuid);
- LOG_DEBUG("ctypr = 0x%08" PRIx32, ctypr);
- LOG_DEBUG("ttypr = 0x%08" PRIx32, ttypr);
- LOG_DEBUG("didr = 0x%08" PRIx32, didr);
+ if (dbg_osreg & PRSR_STICKY_RESET_STATUS)
+ LOG_DEBUG("target->coreid %" PRId32 " was reset!", target->coreid);
- armv7a->arm.core_type = ARM_MODE_MON;
- retval = cortex_a8_dpm_setup(cortex_a8, didr);
+ /* Read DBGOSLSR and check if OSLK is implemented */
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_OSLSR, &dbg_osreg);
if (retval != ERROR_OK)
return retval;
+ LOG_DEBUG("target->coreid %" PRId32 " DBGOSLSR 0x%" PRIx32, target->coreid, dbg_osreg);
+
+ /* check if OS Lock is implemented */
+ if ((dbg_osreg & OSLSR_OSLM) == OSLSR_OSLM0 || (dbg_osreg & OSLSR_OSLM) == OSLSR_OSLM1) {
+ /* check if OS Lock is set */
+ if (dbg_osreg & OSLSR_OSLK) {
+ LOG_DEBUG("target->coreid %" PRId32 " OSLock set! Trying to unlock", target->coreid);
+
+ retval = mem_ap_write_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_OSLAR,
+ 0);
+ if (retval == ERROR_OK)
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_OSLSR, &dbg_osreg);
+
+ /* if we fail to access the register or cannot reset the OSLK bit, bail out */
+ if (retval != ERROR_OK || (dbg_osreg & OSLSR_OSLK) != 0) {
+ LOG_ERROR("target->coreid %" PRId32 " OSLock sticky, core not powered?",
+ target->coreid);
+ target->state = TARGET_UNKNOWN; /* TARGET_NO_POWER? */
+ return ERROR_TARGET_INIT_FAILED;
+ }
+ }
+ }
+
+ armv7a->arm.core_type = ARM_MODE_MON;
+
+ /* Avoid recreating the registers cache */
+ if (!target_was_examined(target)) {
+ retval = cortex_a_dpm_setup(cortex_a, didr);
+ if (retval != ERROR_OK)
+ return retval;
+ }
/* Setup Breakpoint Register Pairs */
- cortex_a8->brp_num = ((didr >> 24) & 0x0F) + 1;
- cortex_a8->brp_num_context = ((didr >> 20) & 0x0F) + 1;
- cortex_a8->brp_num_available = cortex_a8->brp_num;
- cortex_a8->brp_list = calloc(cortex_a8->brp_num, sizeof(struct cortex_a8_brp));
-/* cortex_a8->brb_enabled = ????; */
- for (i = 0; i < cortex_a8->brp_num; i++) {
- cortex_a8->brp_list[i].used = 0;
- if (i < (cortex_a8->brp_num-cortex_a8->brp_num_context))
- cortex_a8->brp_list[i].type = BRP_NORMAL;
+ cortex_a->brp_num = ((didr >> 24) & 0x0F) + 1;
+ cortex_a->brp_num_context = ((didr >> 20) & 0x0F) + 1;
+ cortex_a->brp_num_available = cortex_a->brp_num;
+ free(cortex_a->brp_list);
+ cortex_a->brp_list = calloc(cortex_a->brp_num, sizeof(struct cortex_a_brp));
+/* cortex_a->brb_enabled = ????; */
+ for (i = 0; i < cortex_a->brp_num; i++) {
+ cortex_a->brp_list[i].used = 0;
+ if (i < (cortex_a->brp_num-cortex_a->brp_num_context))
+ cortex_a->brp_list[i].type = BRP_NORMAL;
else
- cortex_a8->brp_list[i].type = BRP_CONTEXT;
- cortex_a8->brp_list[i].value = 0;
- cortex_a8->brp_list[i].control = 0;
- cortex_a8->brp_list[i].BRPn = i;
+ cortex_a->brp_list[i].type = BRP_CONTEXT;
+ cortex_a->brp_list[i].value = 0;
+ cortex_a->brp_list[i].control = 0;
+ cortex_a->brp_list[i].BRPn = i;
}
- LOG_DEBUG("Configured %i hw breakpoints", cortex_a8->brp_num);
+ LOG_DEBUG("Configured %i hw breakpoints", cortex_a->brp_num);
+
+ /* select debug_ap as default */
+ swjdp->apsel = armv7a->debug_ap->ap_num;
target_set_examined(target);
return ERROR_OK;
}
-static int cortex_a8_examine(struct target *target)
+static int cortex_a_examine(struct target *target)
{
int retval = ERROR_OK;
- /* don't re-probe hardware after each reset */
- if (!target_was_examined(target))
- retval = cortex_a8_examine_first(target);
+ /* Reestablish communication after target reset */
+ retval = cortex_a_examine_first(target);
/* Configure core debug access */
if (retval == ERROR_OK)
- retval = cortex_a8_init_debug_access(target);
+ retval = cortex_a_init_debug_access(target);
return retval;
}
/*
- * Cortex-A8 target creation and initialization
+ * Cortex-A target creation and initialization
*/
-static int cortex_a8_init_target(struct command_context *cmd_ctx,
+static int cortex_a_init_target(struct command_context *cmd_ctx,
struct target *target)
{
/* examine_first() does a bunch of this */
+ arm_semihosting_init(target);
return ERROR_OK;
}
-static int cortex_a8_init_arch_info(struct target *target,
- struct cortex_a8_common *cortex_a8, struct jtag_tap *tap)
+static int cortex_a_init_arch_info(struct target *target,
+ struct cortex_a_common *cortex_a, struct adiv5_dap *dap)
{
- struct armv7a_common *armv7a = &cortex_a8->armv7a_common;
- struct adiv5_dap *dap = &armv7a->dap;
+ struct armv7a_common *armv7a = &cortex_a->armv7a_common;
+ /* Setup struct cortex_a_common */
+ cortex_a->common_magic = CORTEX_A_COMMON_MAGIC;
armv7a->arm.dap = dap;
- /* Setup struct cortex_a8_common */
- cortex_a8->common_magic = CORTEX_A8_COMMON_MAGIC;
- /* tap has no dap initialized */
- if (!tap->dap) {
- armv7a->arm.dap = dap;
- /* Setup struct cortex_a8_common */
-
- /* prepare JTAG information for the new target */
- cortex_a8->jtag_info.tap = tap;
- cortex_a8->jtag_info.scann_size = 4;
-
- /* Leave (only) generic DAP stuff for debugport_init() */
- dap->jtag_info = &cortex_a8->jtag_info;
-
- /* Number of bits for tar autoincrement, impl. dep. at least 10 */
- dap->tar_autoincr_block = (1 << 10);
- dap->memaccess_tck = 80;
- tap->dap = dap;
- } else
- armv7a->arm.dap = tap->dap;
-
- cortex_a8->fast_reg_read = 0;
-
/* register arch-specific functions */
armv7a->examine_debug_reason = NULL;
- armv7a->post_debug_entry = cortex_a8_post_debug_entry;
+ armv7a->post_debug_entry = cortex_a_post_debug_entry;
armv7a->pre_restore_context = NULL;
- armv7a->armv7a_mmu.read_physical_memory = cortex_a8_read_phys_memory;
+ armv7a->armv7a_mmu.read_physical_memory = cortex_a_read_phys_memory;
-/* arm7_9->handle_target_request = cortex_a8_handle_target_request; */
+/* arm7_9->handle_target_request = cortex_a_handle_target_request; */
/* REVISIT v7a setup should be in a v7a-specific routine */
armv7a_init_arch_info(target, armv7a);
- target_register_timer_callback(cortex_a8_handle_target_request, 1, 1, target);
+ target_register_timer_callback(cortex_a_handle_target_request, 1,
+ TARGET_TIMER_TYPE_PERIODIC, target);
return ERROR_OK;
}
-static int cortex_a8_target_create(struct target *target, Jim_Interp *interp)
+static int cortex_a_target_create(struct target *target, Jim_Interp *interp)
{
- struct cortex_a8_common *cortex_a8 = calloc(1, sizeof(struct cortex_a8_common));
+ struct cortex_a_common *cortex_a;
+ struct adiv5_private_config *pc;
+
+ if (target->private_config == NULL)
+ return ERROR_FAIL;
+
+ pc = (struct adiv5_private_config *)target->private_config;
- cortex_a8->armv7a_common.is_armv7r = false;
+ cortex_a = calloc(1, sizeof(struct cortex_a_common));
+ if (cortex_a == NULL) {
+ LOG_ERROR("Out of memory");
+ return ERROR_FAIL;
+ }
+ cortex_a->common_magic = CORTEX_A_COMMON_MAGIC;
+ cortex_a->armv7a_common.is_armv7r = false;
+ cortex_a->armv7a_common.arm.arm_vfp_version = ARM_VFP_V3;
- return cortex_a8_init_arch_info(target, cortex_a8, target->tap);
+ return cortex_a_init_arch_info(target, cortex_a, pc->dap);
}
static int cortex_r4_target_create(struct target *target, Jim_Interp *interp)
{
- struct cortex_a8_common *cortex_a8 = calloc(1, sizeof(struct cortex_a8_common));
+ struct cortex_a_common *cortex_a;
+ struct adiv5_private_config *pc;
+
+ pc = (struct adiv5_private_config *)target->private_config;
+ if (adiv5_verify_config(pc) != ERROR_OK)
+ return ERROR_FAIL;
- cortex_a8->armv7a_common.is_armv7r = true;
+ cortex_a = calloc(1, sizeof(struct cortex_a_common));
+ if (cortex_a == NULL) {
+ LOG_ERROR("Out of memory");
+ return ERROR_FAIL;
+ }
+ cortex_a->common_magic = CORTEX_A_COMMON_MAGIC;
+ cortex_a->armv7a_common.is_armv7r = true;
- return cortex_a8_init_arch_info(target, cortex_a8, target->tap);
+ return cortex_a_init_arch_info(target, cortex_a, pc->dap);
}
+static void cortex_a_deinit_target(struct target *target)
+{
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
+ struct armv7a_common *armv7a = &cortex_a->armv7a_common;
+ struct arm_dpm *dpm = &armv7a->dpm;
+ uint32_t dscr;
+ int retval;
+
+ if (target_was_examined(target)) {
+ /* Disable halt for breakpoint, watchpoint and vector catch */
+ retval = mem_ap_read_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DSCR, &dscr);
+ if (retval == ERROR_OK)
+ mem_ap_write_atomic_u32(armv7a->debug_ap,
+ armv7a->debug_base + CPUDBG_DSCR,
+ dscr & ~DSCR_HALT_DBG_MODE);
+ }
+
+ free(cortex_a->brp_list);
+ free(dpm->dbp);
+ free(dpm->dwp);
+ free(target->private_config);
+ free(cortex_a);
+}
-static int cortex_a8_mmu(struct target *target, int *enabled)
+static int cortex_a_mmu(struct target *target, int *enabled)
{
+ struct armv7a_common *armv7a = target_to_armv7a(target);
+
if (target->state != TARGET_HALTED) {
LOG_ERROR("%s: target not halted", __func__);
return ERROR_TARGET_INVALID;
}
- *enabled = target_to_cortex_a8(target)->armv7a_common.armv7a_mmu.mmu_enabled;
+ if (armv7a->is_armv7r)
+ *enabled = 0;
+ else
+ *enabled = target_to_cortex_a(target)->armv7a_common.armv7a_mmu.mmu_enabled;
+
return ERROR_OK;
}
-static int cortex_a8_virt2phys(struct target *target,
- uint32_t virt, uint32_t *phys)
+static int cortex_a_virt2phys(struct target *target,
+ target_addr_t virt, target_addr_t *phys)
{
- int retval = ERROR_FAIL;
- struct armv7a_common *armv7a = target_to_armv7a(target);
- struct adiv5_dap *swjdp = armv7a->arm.dap;
- uint8_t apsel = swjdp->apsel;
- if (armv7a->memory_ap_available && (apsel == armv7a->memory_ap)) {
- uint32_t ret;
- retval = armv7a_mmu_translate_va(target,
- virt, &ret);
- if (retval != ERROR_OK)
- goto done;
- *phys = ret;
- } else {/* use this method if armv7a->memory_ap not selected
- * mmu must be enable in order to get a correct translation */
- retval = cortex_a8_mmu_modify(target, 1);
- if (retval != ERROR_OK)
- goto done;
- retval = armv7a_mmu_translate_va_pa(target, virt, phys, 1);
+ int retval;
+ int mmu_enabled = 0;
+
+ /*
+ * If the MMU was not enabled at debug entry, there is no
+ * way of knowing if there was ever a valid configuration
+ * for it and thus it's not safe to enable it. In this case,
+ * just return the virtual address as physical.
+ */
+ cortex_a_mmu(target, &mmu_enabled);
+ if (!mmu_enabled) {
+ *phys = virt;
+ return ERROR_OK;
}
-done:
- return retval;
+
+ /* mmu must be enable in order to get a correct translation */
+ retval = cortex_a_mmu_modify(target, 1);
+ if (retval != ERROR_OK)
+ return retval;
+ return armv7a_mmu_translate_va_pa(target, (uint32_t)virt,
+ (uint32_t *)phys, 1);
}
-COMMAND_HANDLER(cortex_a8_handle_cache_info_command)
+COMMAND_HANDLER(cortex_a_handle_cache_info_command)
{
struct target *target = get_current_target(CMD_CTX);
struct armv7a_common *armv7a = target_to_armv7a(target);
}
-COMMAND_HANDLER(cortex_a8_handle_dbginit_command)
+COMMAND_HANDLER(cortex_a_handle_dbginit_command)
{
struct target *target = get_current_target(CMD_CTX);
if (!target_was_examined(target)) {
return ERROR_FAIL;
}
- return cortex_a8_init_debug_access(target);
-}
-COMMAND_HANDLER(cortex_a8_handle_smp_off_command)
-{
- struct target *target = get_current_target(CMD_CTX);
- /* check target is an smp target */
- struct target_list *head;
- struct target *curr;
- head = target->head;
- target->smp = 0;
- if (head != (struct target_list *)NULL) {
- while (head != (struct target_list *)NULL) {
- curr = head->target;
- curr->smp = 0;
- head = head->next;
- }
- /* fixes the target display to the debugger */
- target->gdb_service->target = target;
- }
- return ERROR_OK;
+ return cortex_a_init_debug_access(target);
}
-COMMAND_HANDLER(cortex_a8_handle_smp_on_command)
+COMMAND_HANDLER(handle_cortex_a_mask_interrupts_command)
{
struct target *target = get_current_target(CMD_CTX);
- struct target_list *head;
- struct target *curr;
- head = target->head;
- if (head != (struct target_list *)NULL) {
- target->smp = 1;
- while (head != (struct target_list *)NULL) {
- curr = head->target;
- curr->smp = 1;
- head = head->next;
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
+
+ static const Jim_Nvp nvp_maskisr_modes[] = {
+ { .name = "off", .value = CORTEX_A_ISRMASK_OFF },
+ { .name = "on", .value = CORTEX_A_ISRMASK_ON },
+ { .name = NULL, .value = -1 },
+ };
+ const Jim_Nvp *n;
+
+ if (CMD_ARGC > 0) {
+ n = Jim_Nvp_name2value_simple(nvp_maskisr_modes, CMD_ARGV[0]);
+ if (n->name == NULL) {
+ LOG_ERROR("Unknown parameter: %s - should be off or on", CMD_ARGV[0]);
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
+
+ cortex_a->isrmasking_mode = n->value;
}
+
+ n = Jim_Nvp_value2name_simple(nvp_maskisr_modes, cortex_a->isrmasking_mode);
+ command_print(CMD_CTX, "cortex_a interrupt mask %s", n->name);
+
return ERROR_OK;
}
-COMMAND_HANDLER(cortex_a8_handle_smp_gdb_command)
+COMMAND_HANDLER(handle_cortex_a_dacrfixup_command)
{
struct target *target = get_current_target(CMD_CTX);
- int retval = ERROR_OK;
- struct target_list *head;
- head = target->head;
- if (head != (struct target_list *)NULL) {
- if (CMD_ARGC == 1) {
- int coreid = 0;
- COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], coreid);
- if (ERROR_OK != retval)
- return retval;
- target->gdb_service->core[1] = coreid;
+ struct cortex_a_common *cortex_a = target_to_cortex_a(target);
+
+ static const Jim_Nvp nvp_dacrfixup_modes[] = {
+ { .name = "off", .value = CORTEX_A_DACRFIXUP_OFF },
+ { .name = "on", .value = CORTEX_A_DACRFIXUP_ON },
+ { .name = NULL, .value = -1 },
+ };
+ const Jim_Nvp *n;
+
+ if (CMD_ARGC > 0) {
+ n = Jim_Nvp_name2value_simple(nvp_dacrfixup_modes, CMD_ARGV[0]);
+ if (n->name == NULL)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ cortex_a->dacrfixup_mode = n->value;
- }
- command_print(CMD_CTX, "gdb coreid %d -> %d", target->gdb_service->core[0]
- , target->gdb_service->core[1]);
}
+
+ n = Jim_Nvp_value2name_simple(nvp_dacrfixup_modes, cortex_a->dacrfixup_mode);
+ command_print(CMD_CTX, "cortex_a domain access control fixup %s", n->name);
+
return ERROR_OK;
}
-static const struct command_registration cortex_a8_exec_command_handlers[] = {
+static const struct command_registration cortex_a_exec_command_handlers[] = {
{
.name = "cache_info",
- .handler = cortex_a8_handle_cache_info_command,
+ .handler = cortex_a_handle_cache_info_command,
.mode = COMMAND_EXEC,
.help = "display information about target caches",
.usage = "",
},
{
.name = "dbginit",
- .handler = cortex_a8_handle_dbginit_command,
+ .handler = cortex_a_handle_dbginit_command,
.mode = COMMAND_EXEC,
.help = "Initialize core debug",
.usage = "",
},
- { .name = "smp_off",
- .handler = cortex_a8_handle_smp_off_command,
- .mode = COMMAND_EXEC,
- .help = "Stop smp handling",
- .usage = "",},
{
- .name = "smp_on",
- .handler = cortex_a8_handle_smp_on_command,
- .mode = COMMAND_EXEC,
- .help = "Restart smp handling",
- .usage = "",
+ .name = "maskisr",
+ .handler = handle_cortex_a_mask_interrupts_command,
+ .mode = COMMAND_ANY,
+ .help = "mask cortex_a interrupts",
+ .usage = "['on'|'off']",
},
{
- .name = "smp_gdb",
- .handler = cortex_a8_handle_smp_gdb_command,
- .mode = COMMAND_EXEC,
- .help = "display/fix current core played to gdb",
- .usage = "",
+ .name = "dacrfixup",
+ .handler = handle_cortex_a_dacrfixup_command,
+ .mode = COMMAND_ANY,
+ .help = "set domain access control (DACR) to all-manager "
+ "on memory access",
+ .usage = "['on'|'off']",
+ },
+ {
+ .chain = armv7a_mmu_command_handlers,
+ },
+ {
+ .chain = smp_command_handlers,
},
-
COMMAND_REGISTRATION_DONE
};
-static const struct command_registration cortex_a8_command_handlers[] = {
+static const struct command_registration cortex_a_command_handlers[] = {
{
.chain = arm_command_handlers,
},
.mode = COMMAND_ANY,
.help = "Cortex-A command group",
.usage = "",
- .chain = cortex_a8_exec_command_handlers,
+ .chain = cortex_a_exec_command_handlers,
},
COMMAND_REGISTRATION_DONE
};
-struct target_type cortexa8_target = {
+struct target_type cortexa_target = {
.name = "cortex_a",
.deprecated_name = "cortex_a8",
- .poll = cortex_a8_poll,
+ .poll = cortex_a_poll,
.arch_state = armv7a_arch_state,
- .target_request_data = NULL,
-
- .halt = cortex_a8_halt,
- .resume = cortex_a8_resume,
- .step = cortex_a8_step,
+ .halt = cortex_a_halt,
+ .resume = cortex_a_resume,
+ .step = cortex_a_step,
- .assert_reset = cortex_a8_assert_reset,
- .deassert_reset = cortex_a8_deassert_reset,
+ .assert_reset = cortex_a_assert_reset,
+ .deassert_reset = cortex_a_deassert_reset,
/* REVISIT allow exporting VFP3 registers ... */
+ .get_gdb_arch = arm_get_gdb_arch,
.get_gdb_reg_list = arm_get_gdb_reg_list,
- .read_memory = cortex_a8_read_memory,
- .write_memory = cortex_a8_write_memory,
+ .read_memory = cortex_a_read_memory,
+ .write_memory = cortex_a_write_memory,
+
+ .read_buffer = cortex_a_read_buffer,
+ .write_buffer = cortex_a_write_buffer,
.checksum_memory = arm_checksum_memory,
.blank_check_memory = arm_blank_check_memory,
.run_algorithm = armv4_5_run_algorithm,
- .add_breakpoint = cortex_a8_add_breakpoint,
- .add_context_breakpoint = cortex_a8_add_context_breakpoint,
- .add_hybrid_breakpoint = cortex_a8_add_hybrid_breakpoint,
- .remove_breakpoint = cortex_a8_remove_breakpoint,
+ .add_breakpoint = cortex_a_add_breakpoint,
+ .add_context_breakpoint = cortex_a_add_context_breakpoint,
+ .add_hybrid_breakpoint = cortex_a_add_hybrid_breakpoint,
+ .remove_breakpoint = cortex_a_remove_breakpoint,
.add_watchpoint = NULL,
.remove_watchpoint = NULL,
- .commands = cortex_a8_command_handlers,
- .target_create = cortex_a8_target_create,
- .init_target = cortex_a8_init_target,
- .examine = cortex_a8_examine,
-
- .read_phys_memory = cortex_a8_read_phys_memory,
- .write_phys_memory = cortex_a8_write_phys_memory,
- .mmu = cortex_a8_mmu,
- .virt2phys = cortex_a8_virt2phys,
+ .commands = cortex_a_command_handlers,
+ .target_create = cortex_a_target_create,
+ .target_jim_configure = adiv5_jim_configure,
+ .init_target = cortex_a_init_target,
+ .examine = cortex_a_examine,
+ .deinit_target = cortex_a_deinit_target,
+
+ .read_phys_memory = cortex_a_read_phys_memory,
+ .write_phys_memory = cortex_a_write_phys_memory,
+ .mmu = cortex_a_mmu,
+ .virt2phys = cortex_a_virt2phys,
};
static const struct command_registration cortex_r4_exec_command_handlers[] = {
{
- .name = "cache_info",
- .handler = cortex_a8_handle_cache_info_command,
+ .name = "dbginit",
+ .handler = cortex_a_handle_dbginit_command,
.mode = COMMAND_EXEC,
- .help = "display information about target caches",
+ .help = "Initialize core debug",
.usage = "",
},
{
- .name = "dbginit",
- .handler = cortex_a8_handle_dbginit_command,
+ .name = "maskisr",
+ .handler = handle_cortex_a_mask_interrupts_command,
.mode = COMMAND_EXEC,
- .help = "Initialize core debug",
- .usage = "",
+ .help = "mask cortex_r4 interrupts",
+ .usage = "['on'|'off']",
},
COMMAND_REGISTRATION_DONE
{
.chain = arm_command_handlers,
},
- {
- .chain = armv7a_command_handlers,
- },
{
.name = "cortex_r4",
.mode = COMMAND_ANY,
struct target_type cortexr4_target = {
.name = "cortex_r4",
- .poll = cortex_a8_poll,
+ .poll = cortex_a_poll,
.arch_state = armv7a_arch_state,
- .target_request_data = NULL,
-
- .halt = cortex_a8_halt,
- .resume = cortex_a8_resume,
- .step = cortex_a8_step,
+ .halt = cortex_a_halt,
+ .resume = cortex_a_resume,
+ .step = cortex_a_step,
- .assert_reset = cortex_a8_assert_reset,
- .deassert_reset = cortex_a8_deassert_reset,
+ .assert_reset = cortex_a_assert_reset,
+ .deassert_reset = cortex_a_deassert_reset,
/* REVISIT allow exporting VFP3 registers ... */
+ .get_gdb_arch = arm_get_gdb_arch,
.get_gdb_reg_list = arm_get_gdb_reg_list,
- .read_memory = cortex_a8_read_memory,
- .write_memory = cortex_a8_write_memory,
+ .read_memory = cortex_a_read_phys_memory,
+ .write_memory = cortex_a_write_phys_memory,
.checksum_memory = arm_checksum_memory,
.blank_check_memory = arm_blank_check_memory,
.run_algorithm = armv4_5_run_algorithm,
- .add_breakpoint = cortex_a8_add_breakpoint,
- .add_context_breakpoint = cortex_a8_add_context_breakpoint,
- .add_hybrid_breakpoint = cortex_a8_add_hybrid_breakpoint,
- .remove_breakpoint = cortex_a8_remove_breakpoint,
+ .add_breakpoint = cortex_a_add_breakpoint,
+ .add_context_breakpoint = cortex_a_add_context_breakpoint,
+ .add_hybrid_breakpoint = cortex_a_add_hybrid_breakpoint,
+ .remove_breakpoint = cortex_a_remove_breakpoint,
.add_watchpoint = NULL,
.remove_watchpoint = NULL,
.commands = cortex_r4_command_handlers,
.target_create = cortex_r4_target_create,
- .init_target = cortex_a8_init_target,
- .examine = cortex_a8_examine,
+ .target_jim_configure = adiv5_jim_configure,
+ .init_target = cortex_a_init_target,
+ .examine = cortex_a_examine,
+ .deinit_target = cortex_a_deinit_target,
};
Code Review / openocd.git / blobdiff