gitignore: Add GNU Global tag files
[openocd.git] / src / flash / nor / stm32l4x.c
index 8c292e76d5be7318aefbfef880433dc7b1a70c2f..e5100a0159bcba06b3e9053db54231c32ccc08db 100644 (file)
 #include "imp.h"
 #include <helper/align.h>
 #include <helper/binarybuffer.h>
+#include <helper/bits.h>
 #include <target/algorithm.h>
+#include <target/arm_adi_v5.h>
 #include <target/cortex_m.h>
-#include "bits.h"
 #include "stm32l4x.h"
 
 /* STM32L4xxx series for reference.
@@ -252,7 +253,6 @@ struct stm32l4_flash_bank {
        uint32_t flash_regs_base;
        const uint32_t *flash_regs;
        bool otp_enabled;
-       bool use_flashloader;
        enum stm32l4_rdp rdp;
        bool tzen;
        uint32_t optr;
@@ -619,7 +619,6 @@ FLASH_BANK_COMMAND_HANDLER(stm32l4_flash_bank_command)
        stm32l4_info->probed = false;
        stm32l4_info->otp_enabled = false;
        stm32l4_info->user_bank_size = bank->size;
-       stm32l4_info->use_flashloader = true;
 
        return ERROR_OK;
 }
@@ -1595,20 +1594,21 @@ static int stm32l4_write(struct flash_bank *bank, const uint8_t *buffer,
        if (retval != ERROR_OK)
                goto err_lock;
 
-       if (stm32l4_info->use_flashloader) {
-               /* For TrustZone enabled devices, when TZEN is set and RDP level is 0.5,
-                * the debug is possible only in non-secure state.
-                * Thus means the flashloader will run in non-secure mode,
-                * and the workarea need to be in non-secure RAM */
-               if (stm32l4_info->tzen && (stm32l4_info->rdp == RDP_LEVEL_0_5))
-                       LOG_INFO("RDP level is 0.5, the work-area should reside in non-secure RAM");
 
-               retval = stm32l4_write_block(bank, buffer, offset,
-                               count / stm32l4_info->data_width);
-       }
+       /* For TrustZone enabled devices, when TZEN is set and RDP level is 0.5,
+        * the debug is possible only in non-secure state.
+        * Thus means the flashloader will run in non-secure mode,
+        * and the workarea need to be in non-secure RAM */
+       if (stm32l4_info->tzen && (stm32l4_info->rdp == RDP_LEVEL_0_5))
+               LOG_WARNING("RDP = 0x55, the work-area should be in non-secure RAM (check SAU partitioning)");
+
+       /* first try to write using the loader, for better performance */
+       retval = stm32l4_write_block(bank, buffer, offset,
+                       count / stm32l4_info->data_width);
 
-       if (!stm32l4_info->use_flashloader || retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE) {
-               LOG_INFO("falling back to single memory accesses");
+       /* if resources are not available write without a loader */
+       if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE) {
+               LOG_WARNING("falling back to programming without a flash loader (slower)");
                retval = stm32l4_write_block_without_loader(bank, buffer, offset,
                                count / stm32l4_info->data_width);
        }
@@ -2266,26 +2266,6 @@ COMMAND_HANDLER(stm32l4_handle_trustzone_command)
        return stm32l4_perform_obl_launch(bank);
 }
 
-COMMAND_HANDLER(stm32l4_handle_flashloader_command)
-{
-       if (CMD_ARGC < 1 || CMD_ARGC > 2)
-               return ERROR_COMMAND_SYNTAX_ERROR;
-
-       struct flash_bank *bank;
-       int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
-       if (retval != ERROR_OK)
-               return retval;
-
-       struct stm32l4_flash_bank *stm32l4_info = bank->driver_priv;
-
-       if (CMD_ARGC == 2)
-               COMMAND_PARSE_ENABLE(CMD_ARGV[1], stm32l4_info->use_flashloader);
-
-       command_print(CMD, "FlashLoader usage is %s", stm32l4_info->use_flashloader ? "enabled" : "disabled");
-
-       return ERROR_OK;
-}
-
 COMMAND_HANDLER(stm32l4_handle_option_load_command)
 {
        if (CMD_ARGC != 1)
@@ -2491,13 +2471,6 @@ static const struct command_registration stm32l4_exec_command_handlers[] = {
                .usage = "bank_id",
                .help = "Unlock entire protected flash device.",
        },
-       {
-               .name = "flashloader",
-               .handler = stm32l4_handle_flashloader_command,
-               .mode = COMMAND_EXEC,
-               .usage = "<bank_id> [enable|disable]",
-               .help = "Configure the flashloader usage",
-       },
        {
                .name = "mass_erase",
                .handler = stm32l4_handle_mass_erase_command,

Linking to existing account procedure

If you already have an account and want to add another login method you MUST first sign in with your existing account and then change URL to read https://review.openocd.org/login/?link to get to this page again but this time it'll work for linking. Thank you.

SSH host keys fingerprints

1024 SHA256:YKx8b7u5ZWdcbp7/4AeXNaqElP49m6QrwfXaqQGJAOk gerrit-code-review@openocd.zylin.com (DSA)
384 SHA256:jHIbSQa4REvwCFG4cq5LBlBLxmxSqelQPem/EXIrxjk gerrit-code-review@openocd.org (ECDSA)
521 SHA256:UAOPYkU9Fjtcao0Ul/Rrlnj/OsQvt+pgdYSZ4jOYdgs gerrit-code-review@openocd.org (ECDSA)
256 SHA256:A13M5QlnozFOvTllybRZH6vm7iSt0XLxbA48yfc2yfY gerrit-code-review@openocd.org (ECDSA)
256 SHA256:spYMBqEYoAOtK7yZBrcwE8ZpYt6b68Cfh9yEVetvbXg gerrit-code-review@openocd.org (ED25519)
+--[ED25519 256]--+
|=..              |
|+o..   .         |
|*.o   . .        |
|+B . . .         |
|Bo. = o S        |
|Oo.+ + =         |
|oB=.* = . o      |
| =+=.+   + E     |
|. .=o   . o      |
+----[SHA256]-----+
2048 SHA256:0Onrb7/PHjpo6iVZ7xQX2riKN83FJ3KGU0TvI0TaFG4 gerrit-code-review@openocd.zylin.com (RSA)