flash/nor/stellaris: add all Tiva C parts IDs
[openocd.git] / src / flash / nor / stellaris.c
index 21a0cffd44aecebd864a3ce55e1d4ddbd0633e71..08af1928e08223c0ad025d7a92709f98f6cc9298 100644 (file)
  *   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.,                                       *
- *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  ***************************************************************************/
 
 /***************************************************************************
-* STELLARIS is tested on LM3S811, LM3S6965
+* STELLARIS flash is tested on LM3S811, LM3S6965, LM3s3748, more.
 ***************************************************************************/
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
+#include "jtag/interface.h"
 #include "imp.h"
-#include "stellaris.h"
 #include <target/algorithm.h>
 #include <target/armv7m.h>
 
-
 #define DID0_VER(did0) ((did0 >> 28)&0x07)
 
+/* STELLARIS control registers */
+#define SCB_BASE       0x400FE000
+#define DID0           0x000
+#define DID1           0x004
+#define DC0                    0x008
+#define DC1                    0x010
+#define DC2                    0x014
+#define DC3                    0x018
+#define DC4                    0x01C
+
+#define RIS                    0x050
+#define RCC                    0x060
+#define PLLCFG         0x064
+#define RCC2           0x070
+#define NVMSTAT                0x1a0
+
+/* "legacy" flash memory protection registers (64KB max) */
+#define FMPRE          0x130
+#define FMPPE          0x134
+
+/* new flash memory protection registers (for more than 64KB) */
+#define FMPRE0         0x200           /* PRE1 = PRE0 + 4, etc */
+#define FMPPE0         0x400           /* PPE1 = PPE0 + 4, etc */
+
+#define USECRL         0x140
+
+#define FLASH_CONTROL_BASE     0x400FD000
+#define FLASH_FMA      (FLASH_CONTROL_BASE | 0x000)
+#define FLASH_FMD      (FLASH_CONTROL_BASE | 0x004)
+#define FLASH_FMC      (FLASH_CONTROL_BASE | 0x008)
+#define FLASH_CRIS     (FLASH_CONTROL_BASE | 0x00C)
+#define FLASH_CIM      (FLASH_CONTROL_BASE | 0x010)
+#define FLASH_MISC     (FLASH_CONTROL_BASE | 0x014)
+#define FLASH_FSIZE    (FLASH_CONTROL_BASE | 0xFC0)
+#define FLASH_SSIZE    (FLASH_CONTROL_BASE | 0xFC4)
+
+#define AMISC  1
+#define PMISC  2
+
+#define AMASK  1
+#define PMASK  2
+
+/* Flash Controller Command bits */
+#define FMC_WRKEY      (0xA442 << 16)
+#define FMC_COMT       (1 << 3)
+#define FMC_MERASE     (1 << 2)
+#define FMC_ERASE      (1 << 1)
+#define FMC_WRITE      (1 << 0)
+
+/* STELLARIS constants */
+
+/* values to write in FMA to commit write-"once" values */
+#define FLASH_FMA_PRE(x)       (2 * (x))       /* for FMPPREx */
+#define FLASH_FMA_PPE(x)       (2 * (x) + 1)   /* for FMPPPEx */
+
 static void stellaris_read_clock_info(struct flash_bank *bank);
 static int stellaris_mass_erase(struct flash_bank *bank);
 
-static struct {
-       uint32_t partno;
-       char *partname;
-}      StellarisParts[] =
-{
-       {0x0001,"LM3S101"},
-       {0x0002,"LM3S102"},
-       {0x0019,"LM3S300"},
-       {0x0011,"LM3S301"},
-       {0x001A,"LM3S308"},
-       {0x0012,"LM3S310"},
-       {0x0013,"LM3S315"},
-       {0x0014,"LM3S316"},
-       {0x0017,"LM3S317"},
-       {0x0015,"LM3S328"},
-       {0x002A,"LM3S600"},
-       {0x0021,"LM3S601"},
-       {0x002B,"LM3S608"},
-       {0x0022,"LM3S610"},
-       {0x0023,"LM3S611"},
-       {0x0024,"LM3S612"},
-       {0x0025,"LM3S613"},
-       {0x0026,"LM3S615"},
-       {0x0028,"LM3S617"},
-       {0x0029,"LM3S618"},
-       {0x0027,"LM3S628"},
-       {0x0038,"LM3S800"},
-       {0x0031,"LM3S801"},
-       {0x0039,"LM3S808"},
-       {0x0032,"LM3S811"},
-       {0x0033,"LM3S812"},
-       {0x0034,"LM3S815"},
-       {0x0036,"LM3S817"},
-       {0x0037,"LM3S818"},
-       {0x0035,"LM3S828"},
-       {0x10BF,"LM3S1110"},
-       {0x10C3,"LM3S1133"},
-       {0x10C5,"LM3S1138"},
-       {0x10C1,"LM3S1150"},
-       {0x10C4,"LM3S1162"},
-       {0x10C2,"LM3S1165"},
-       {0x10C6,"LM3S1332"},
-       {0x10BC,"LM3S1435"},
-       {0x10BA,"LM3S1439"},
-       {0x10BB,"LM3S1512"},
-       {0x10C7,"LM3S1538"},
-       {0x10DB,"LM3S1601"},
-       {0x1006,"LM3S1607"},
-       {0x10DA,"LM3S1608"},
-       {0x10C0,"LM3S1620"},
-       {0x1003,"LM3S1625"},
-       {0x1004,"LM3S1626"},
-       {0x1005,"LM3S1627"},
-       {0x10B3,"LM3S1635"},
-       {0x10BD,"LM3S1637"},
-       {0x10B9,"LM3S1751"},
-       {0x1010,"LM3S1776"},
-       {0x1016,"LM3S1811"},
-       {0x103D,"LM3S1816"},
-       {0x10B4,"LM3S1850"},
-       {0x10DD,"LM3S1911"},
-       {0x10DC,"LM3S1918"},
-       {0x10B7,"LM3S1937"},
-       {0x10BE,"LM3S1958"},
-       {0x10B5,"LM3S1960"},
-       {0x10B8,"LM3S1968"},
-       {0x100F,"LM3S1J11"},
-       {0x103C,"LM3S1J16"},
-       {0x100E,"LM3S1N11"},
-       {0x103B,"LM3S1N16"},
-       {0x1030,"LM3S1W16"},
-       {0x102F,"LM3S1Z16"},
-       {0x1051,"LM3S2110"},
-       {0x1084,"LM3S2139"},
-       {0x1039,"LM3S2276"},
-       {0x10A2,"LM3S2410"},
-       {0x1059,"LM3S2412"},
-       {0x1056,"LM3S2432"},
-       {0x105A,"LM3S2533"},
-       {0x10E1,"LM3S2601"},
-       {0x10E0,"LM3S2608"},
-       {0x1033,"LM3S2616"},
-       {0x1057,"LM3S2620"},
-       {0x1085,"LM3S2637"},
-       {0x1053,"LM3S2651"},
-       {0x1080,"LM3S2671"},
-       {0x1050,"LM3S2678"},
-       {0x10A4,"LM3S2730"},
-       {0x1052,"LM3S2739"},
-       {0x103A,"LM3S2776"},
-       {0x106D,"LM3S2793"},
-       {0x10E3,"LM3S2911"},
-       {0x10E2,"LM3S2918"},
-       {0x1054,"LM3S2939"},
-       {0x108F,"LM3S2948"},
-       {0x1058,"LM3S2950"},
-       {0x1055,"LM3S2965"},
-       {0x106C,"LM3S2B93"},
-       {0x1043,"LM3S3651"},
-       {0x1044,"LM3S3739"},
-       {0x1049,"LM3S3748"},
-       {0x1045,"LM3S3749"},
-       {0x1042,"LM3S3826"},
-       {0x1041,"LM3S3J26"},
-       {0x1040,"LM3S3N26"},
-       {0x103F,"LM3S3W26"},
-       {0x103E,"LM3S3Z26"},
-       {0x1081,"LM3S5632"},
-       {0x100C,"LM3S5651"},
-       {0x108A,"LM3S5652"},
-       {0x104D,"LM3S5656"},
-       {0x1091,"LM3S5662"},
-       {0x1096,"LM3S5732"},
-       {0x1097,"LM3S5737"},
-       {0x10A0,"LM3S5739"},
-       {0x1099,"LM3S5747"},
-       {0x10A7,"LM3S5749"},
-       {0x109A,"LM3S5752"},
-       {0x109C,"LM3S5762"},
-       {0x1069,"LM3S5791"},
-       {0x100B,"LM3S5951"},
-       {0x104E,"LM3S5956"},
-       {0x1068,"LM3S5B91"},
-       {0x1009,"LM3S5K31"},
-       {0x104A,"LM3S5K36"},
-       {0x100A,"LM3S5P31"},
-       {0x1048,"LM3S5P36"},
-       {0x100D,"LM3S5P51"},
-       {0x104C,"LM3S5P56"},
-       {0x1007,"LM3S5R31"},
-       {0x104B,"LM3S5R36"},
-       {0x1047,"LM3S5T36"},
-       {0x1046,"LM3S5Y36"},
-       {0x10A1,"LM3S6100"},
-       {0x1074,"LM3S6110"},
-       {0x10A5,"LM3S6420"},
-       {0x1082,"LM3S6422"},
-       {0x1075,"LM3S6432"},
-       {0x1076,"LM3S6537"},
-       {0x1071,"LM3S6610"},
-       {0x10E7,"LM3S6611"},
-       {0x10E6,"LM3S6618"},
-       {0x1083,"LM3S6633"},
-       {0x108B,"LM3S6637"},
-       {0x10A3,"LM3S6730"},
-       {0x1077,"LM3S6753"},
-       {0x10E9,"LM3S6911"},
-       {0x10E8,"LM3S6918"},
-       {0x1089,"LM3S6938"},
-       {0x1072,"LM3S6950"},
-       {0x1078,"LM3S6952"},
-       {0x1073,"LM3S6965"},
-       {0x1064,"LM3S8530"},
-       {0x108E,"LM3S8538"},
-       {0x1061,"LM3S8630"},
-       {0x1063,"LM3S8730"},
-       {0x108D,"LM3S8733"},
-       {0x1086,"LM3S8738"},
-       {0x1065,"LM3S8930"},
-       {0x108C,"LM3S8933"},
-       {0x1088,"LM3S8938"},
-       {0x10A6,"LM3S8962"},
-       {0x1062,"LM3S8970"},
-       {0x10D7,"LM3S8971"},
-       {0x1067,"LM3S9790"},
-       {0x106B,"LM3S9792"},
-       {0x1020,"LM3S9997"},
-       {0x1066,"LM3S9B90"},
-       {0x106A,"LM3S9B92"},
-       {0x106E,"LM3S9B95"},
-       {0x106F,"LM3S9B96"},
-       {0x1018,"LM3S9L97"},
-       {0,"Unknown part"}
+struct stellaris_flash_bank {
+       /* chip id register */
+       uint32_t did0;
+       uint32_t did1;
+       uint32_t dc0;
+       uint32_t dc1;
+       uint32_t fsize;
+       uint32_t ssize;
+
+       const char *target_name;
+       uint8_t target_class;
+
+       uint32_t sramsiz;
+       uint32_t flshsz;
+       /* flash geometry */
+       uint32_t num_pages;
+       uint32_t pagesize;
+       uint32_t pages_in_lockregion;
+
+       /* nv memory bits */
+       uint16_t num_lockbits;
+
+       /* main clock status */
+       uint32_t rcc;
+       uint32_t rcc2;
+       uint8_t  mck_valid;
+       uint8_t  xtal_mask;
+       uint32_t iosc_freq;
+       uint32_t mck_freq;
+       const char *iosc_desc;
+       const char *mck_desc;
 };
 
-static char * StellarisClassname[5] =
-{
+/* Autogenerated by contrib/gen-stellaris-part-header.pl */
+/* From Stellaris Firmware Development Package revision 9453 */
+static const struct {
+       uint8_t class;
+       uint8_t partno;
+       const char *partname;
+} StellarisParts[] = {
+       {0x00, 0x01, "LM3S101"},
+       {0x00, 0x02, "LM3S102"},
+       {0x01, 0xBF, "LM3S1110"},
+       {0x01, 0xC3, "LM3S1133"},
+       {0x01, 0xC5, "LM3S1138"},
+       {0x01, 0xC1, "LM3S1150"},
+       {0x01, 0xC4, "LM3S1162"},
+       {0x01, 0xC2, "LM3S1165"},
+       {0x01, 0xEC, "LM3S1166"},
+       {0x01, 0xC6, "LM3S1332"},
+       {0x01, 0xBC, "LM3S1435"},
+       {0x01, 0xBA, "LM3S1439"},
+       {0x01, 0xBB, "LM3S1512"},
+       {0x01, 0xC7, "LM3S1538"},
+       {0x01, 0xDB, "LM3S1601"},
+       {0x03, 0x06, "LM3S1607"},
+       {0x01, 0xDA, "LM3S1608"},
+       {0x01, 0xC0, "LM3S1620"},
+       {0x04, 0xCD, "LM3S1621"},
+       {0x03, 0x03, "LM3S1625"},
+       {0x03, 0x04, "LM3S1626"},
+       {0x03, 0x05, "LM3S1627"},
+       {0x01, 0xB3, "LM3S1635"},
+       {0x01, 0xEB, "LM3S1636"},
+       {0x01, 0xBD, "LM3S1637"},
+       {0x04, 0xB1, "LM3S1651"},
+       {0x01, 0xB9, "LM3S1751"},
+       {0x03, 0x10, "LM3S1776"},
+       {0x04, 0x16, "LM3S1811"},
+       {0x04, 0x3D, "LM3S1816"},
+       {0x01, 0xB4, "LM3S1850"},
+       {0x01, 0xDD, "LM3S1911"},
+       {0x01, 0xDC, "LM3S1918"},
+       {0x01, 0xB7, "LM3S1937"},
+       {0x01, 0xBE, "LM3S1958"},
+       {0x01, 0xB5, "LM3S1960"},
+       {0x01, 0xB8, "LM3S1968"},
+       {0x01, 0xEA, "LM3S1969"},
+       {0x04, 0xCE, "LM3S1B21"},
+       {0x06, 0xCA, "LM3S1C21"},
+       {0x06, 0xCB, "LM3S1C26"},
+       {0x06, 0x98, "LM3S1C58"},
+       {0x06, 0xB0, "LM3S1D21"},
+       {0x06, 0xCC, "LM3S1D26"},
+       {0x06, 0x1D, "LM3S1F11"},
+       {0x06, 0x1B, "LM3S1F16"},
+       {0x06, 0xAF, "LM3S1G21"},
+       {0x06, 0x95, "LM3S1G58"},
+       {0x06, 0x1E, "LM3S1H11"},
+       {0x06, 0x1C, "LM3S1H16"},
+       {0x04, 0x0F, "LM3S1J11"},
+       {0x04, 0x3C, "LM3S1J16"},
+       {0x04, 0x0E, "LM3S1N11"},
+       {0x04, 0x3B, "LM3S1N16"},
+       {0x04, 0xB2, "LM3S1P51"},
+       {0x04, 0x9E, "LM3S1R21"},
+       {0x04, 0xC9, "LM3S1R26"},
+       {0x04, 0x30, "LM3S1W16"},
+       {0x04, 0x2F, "LM3S1Z16"},
+       {0x01, 0x51, "LM3S2110"},
+       {0x01, 0x84, "LM3S2139"},
+       {0x03, 0x39, "LM3S2276"},
+       {0x01, 0xA2, "LM3S2410"},
+       {0x01, 0x59, "LM3S2412"},
+       {0x01, 0x56, "LM3S2432"},
+       {0x01, 0x5A, "LM3S2533"},
+       {0x01, 0xE1, "LM3S2601"},
+       {0x01, 0xE0, "LM3S2608"},
+       {0x03, 0x33, "LM3S2616"},
+       {0x01, 0x57, "LM3S2620"},
+       {0x01, 0x85, "LM3S2637"},
+       {0x01, 0x53, "LM3S2651"},
+       {0x03, 0x80, "LM3S2671"},
+       {0x03, 0x50, "LM3S2678"},
+       {0x01, 0xA4, "LM3S2730"},
+       {0x01, 0x52, "LM3S2739"},
+       {0x03, 0x3A, "LM3S2776"},
+       {0x04, 0x6D, "LM3S2793"},
+       {0x01, 0xE3, "LM3S2911"},
+       {0x01, 0xE2, "LM3S2918"},
+       {0x01, 0xED, "LM3S2919"},
+       {0x01, 0x54, "LM3S2939"},
+       {0x01, 0x8F, "LM3S2948"},
+       {0x01, 0x58, "LM3S2950"},
+       {0x01, 0x55, "LM3S2965"},
+       {0x04, 0x6C, "LM3S2B93"},
+       {0x06, 0x94, "LM3S2D93"},
+       {0x06, 0x93, "LM3S2U93"},
+       {0x00, 0x19, "LM3S300"},
+       {0x00, 0x11, "LM3S301"},
+       {0x00, 0x1A, "LM3S308"},
+       {0x00, 0x12, "LM3S310"},
+       {0x00, 0x13, "LM3S315"},
+       {0x00, 0x14, "LM3S316"},
+       {0x00, 0x17, "LM3S317"},
+       {0x00, 0x15, "LM3S328"},
+       {0x03, 0x08, "LM3S3634"},
+       {0x03, 0x43, "LM3S3651"},
+       {0x04, 0xC8, "LM3S3654"},
+       {0x03, 0x44, "LM3S3739"},
+       {0x03, 0x49, "LM3S3748"},
+       {0x03, 0x45, "LM3S3749"},
+       {0x04, 0x42, "LM3S3826"},
+       {0x04, 0x41, "LM3S3J26"},
+       {0x04, 0x40, "LM3S3N26"},
+       {0x04, 0x3F, "LM3S3W26"},
+       {0x04, 0x3E, "LM3S3Z26"},
+       {0x03, 0x81, "LM3S5632"},
+       {0x04, 0x0C, "LM3S5651"},
+       {0x03, 0x8A, "LM3S5652"},
+       {0x04, 0x4D, "LM3S5656"},
+       {0x03, 0x91, "LM3S5662"},
+       {0x03, 0x96, "LM3S5732"},
+       {0x03, 0x97, "LM3S5737"},
+       {0x03, 0xA0, "LM3S5739"},
+       {0x03, 0x99, "LM3S5747"},
+       {0x03, 0xA7, "LM3S5749"},
+       {0x03, 0x9A, "LM3S5752"},
+       {0x03, 0x9C, "LM3S5762"},
+       {0x04, 0x69, "LM3S5791"},
+       {0x04, 0x0B, "LM3S5951"},
+       {0x04, 0x4E, "LM3S5956"},
+       {0x04, 0x68, "LM3S5B91"},
+       {0x06, 0x2E, "LM3S5C31"},
+       {0x06, 0x2C, "LM3S5C36"},
+       {0x06, 0x5E, "LM3S5C51"},
+       {0x06, 0x5B, "LM3S5C56"},
+       {0x06, 0x5F, "LM3S5D51"},
+       {0x06, 0x5C, "LM3S5D56"},
+       {0x06, 0x87, "LM3S5D91"},
+       {0x06, 0x2D, "LM3S5G31"},
+       {0x06, 0x1F, "LM3S5G36"},
+       {0x06, 0x5D, "LM3S5G51"},
+       {0x06, 0x4F, "LM3S5G56"},
+       {0x04, 0x09, "LM3S5K31"},
+       {0x04, 0x4A, "LM3S5K36"},
+       {0x04, 0x0A, "LM3S5P31"},
+       {0x04, 0x48, "LM3S5P36"},
+       {0x04, 0xB6, "LM3S5P3B"},
+       {0x04, 0x0D, "LM3S5P51"},
+       {0x04, 0x4C, "LM3S5P56"},
+       {0x04, 0x07, "LM3S5R31"},
+       {0x04, 0x4B, "LM3S5R36"},
+       {0x04, 0x47, "LM3S5T36"},
+       {0x06, 0x7F, "LM3S5U91"},
+       {0x04, 0x46, "LM3S5Y36"},
+       {0x00, 0x2A, "LM3S600"},
+       {0x00, 0x21, "LM3S601"},
+       {0x00, 0x2B, "LM3S608"},
+       {0x00, 0x22, "LM3S610"},
+       {0x01, 0xA1, "LM3S6100"},
+       {0x00, 0x23, "LM3S611"},
+       {0x01, 0x74, "LM3S6110"},
+       {0x00, 0x24, "LM3S612"},
+       {0x00, 0x25, "LM3S613"},
+       {0x00, 0x26, "LM3S615"},
+       {0x00, 0x28, "LM3S617"},
+       {0x00, 0x29, "LM3S618"},
+       {0x00, 0x27, "LM3S628"},
+       {0x01, 0xA5, "LM3S6420"},
+       {0x01, 0x82, "LM3S6422"},
+       {0x01, 0x75, "LM3S6432"},
+       {0x01, 0x76, "LM3S6537"},
+       {0x01, 0x71, "LM3S6610"},
+       {0x01, 0xE7, "LM3S6611"},
+       {0x01, 0xE6, "LM3S6618"},
+       {0x01, 0x83, "LM3S6633"},
+       {0x01, 0x8B, "LM3S6637"},
+       {0x01, 0xA3, "LM3S6730"},
+       {0x01, 0x77, "LM3S6753"},
+       {0x01, 0xE9, "LM3S6911"},
+       {0x01, 0xE8, "LM3S6918"},
+       {0x01, 0x89, "LM3S6938"},
+       {0x01, 0x72, "LM3S6950"},
+       {0x01, 0x78, "LM3S6952"},
+       {0x01, 0x73, "LM3S6965"},
+       {0x06, 0xAA, "LM3S6C11"},
+       {0x06, 0xAC, "LM3S6C65"},
+       {0x06, 0x9F, "LM3S6G11"},
+       {0x06, 0xAB, "LM3S6G65"},
+       {0x00, 0x38, "LM3S800"},
+       {0x00, 0x31, "LM3S801"},
+       {0x00, 0x39, "LM3S808"},
+       {0x00, 0x32, "LM3S811"},
+       {0x00, 0x33, "LM3S812"},
+       {0x00, 0x34, "LM3S815"},
+       {0x00, 0x36, "LM3S817"},
+       {0x00, 0x37, "LM3S818"},
+       {0x00, 0x35, "LM3S828"},
+       {0x01, 0x64, "LM3S8530"},
+       {0x01, 0x8E, "LM3S8538"},
+       {0x01, 0x61, "LM3S8630"},
+       {0x01, 0x63, "LM3S8730"},
+       {0x01, 0x8D, "LM3S8733"},
+       {0x01, 0x86, "LM3S8738"},
+       {0x01, 0x65, "LM3S8930"},
+       {0x01, 0x8C, "LM3S8933"},
+       {0x01, 0x88, "LM3S8938"},
+       {0x01, 0xA6, "LM3S8962"},
+       {0x01, 0x62, "LM3S8970"},
+       {0x01, 0xD7, "LM3S8971"},
+       {0x06, 0xAE, "LM3S8C62"},
+       {0x06, 0xAD, "LM3S8G62"},
+       {0x04, 0xCF, "LM3S9781"},
+       {0x04, 0x67, "LM3S9790"},
+       {0x04, 0x6B, "LM3S9792"},
+       {0x04, 0x2D, "LM3S9971"},
+       {0x04, 0x20, "LM3S9997"},
+       {0x04, 0xD0, "LM3S9B81"},
+       {0x04, 0x66, "LM3S9B90"},
+       {0x04, 0x6A, "LM3S9B92"},
+       {0x04, 0x6E, "LM3S9B95"},
+       {0x04, 0x6F, "LM3S9B96"},
+       {0x04, 0x1D, "LM3S9BN2"},
+       {0x04, 0x1E, "LM3S9BN5"},
+       {0x04, 0x1F, "LM3S9BN6"},
+       {0x06, 0x70, "LM3S9C97"},
+       {0x06, 0xA9, "LM3S9D81"},
+       {0x06, 0x7E, "LM3S9D90"},
+       {0x06, 0x92, "LM3S9D92"},
+       {0x06, 0x9D, "LM3S9D96"},
+       {0x06, 0x7B, "LM3S9DN5"},
+       {0x06, 0x7C, "LM3S9DN6"},
+       {0x06, 0x60, "LM3S9G97"},
+       {0x06, 0x79, "LM3S9GN5"},
+       {0x04, 0x1B, "LM3S9L71"},
+       {0x04, 0x18, "LM3S9L97"},
+       {0x06, 0xA8, "LM3S9U81"},
+       {0x06, 0x7D, "LM3S9U90"},
+       {0x06, 0x90, "LM3S9U92"},
+       {0x06, 0x9B, "LM3S9U96"},
+       {0x05, 0x01, "LM4F120B2QR/TM4C1233C3PM"},
+       {0x05, 0x02, "LM4F120C4QR/TM4C1233D5PM"},
+       {0x05, 0x03, "LM4F120E5QR/TM4C1233E6PM"},
+       {0x05, 0x04, "LM4F120H5QR/TM4C1233H6PM"},
+       {0x05, 0x08, "LM4F121B2QR/TM4C1232C3PM"},
+       {0x05, 0x09, "LM4F121C4QR/TM4C1232D5PM"},
+       {0x05, 0x0A, "LM4F121E5QR/TM4C1232E6PM"},
+       {0x05, 0x0B, "LM4F121H5QR/TM4C1232H6PM"},
+       {0x05, 0x10, "LM4F110E5QR/TM4C1231E6PM"},
+       {0x05, 0x11, "LM4F110H5QR/TM4C1231H6PM"},
+       {0x05, 0x18, "LM4F110B2QR/TM4C1231C3PM"},
+       {0x05, 0x19, "LM4F110C4QR/TM4C1231D5PM"},
+       {0x05, 0x20, "LM4F111E5QR/TM4C1230E6PM"},
+       {0x05, 0x21, "LM4F111H5QR/TM4C1230H6PM"},
+       {0x05, 0x22, "LM4F111B2QR/TM4C1230C3PM"},
+       {0x05, 0x23, "LM4F111C4QR/TM4C1230D5PM"},
+       {0x05, 0x30, "LM4F112E5QC/TM4C1231E6PZ"},
+       {0x05, 0x31, "LM4F112H5QC/TM4C1231H6PZ"},
+       {0x05, 0x35, "LM4F112H5QD/TM4C1231H6PGE"},
+       {0x05, 0x36, "LM4F112C4QC/TM4C1231D5PZ"},
+       {0x05, 0x40, "LM4F130E5QR/TM4C1237E6PM"},
+       {0x05, 0x41, "LM4F130H5QR/TM4C1237H6PM"},
+       {0x05, 0x48, "LM4F130C4QR/TM4C1237D5PM"},
+       {0x05, 0x50, "LM4F131E5QR/TM4C1236E6PM"},
+       {0x05, 0x51, "LM4F131H5QR/TM4C1236H6PM"},
+       {0x05, 0x52, "LM4F131C4QR/TM4C1236D5PM"},
+       {0x05, 0x60, "LM4F132E5QC/TM4C1237E6PZ"},
+       {0x05, 0x61, "LM4F132H5QC/TM4C1237H6PZ"},
+       {0x05, 0x65, "LM4F132H5QD/TM4C1237H6PGE"},
+       {0x05, 0x66, "LM4F132C4QC/TM4C1237D5PZ"},
+       {0x05, 0x70, "LM4F210E5QR/TM4C123BE6PM"},
+       {0x05, 0x73, "LM4F210H5QR/TM4C123BH6PM"},
+       {0x05, 0x80, "LM4F211E5QR/TM4C123AE6PM"},
+       {0x05, 0x83, "LM4F211H5QR/TM4C123AH6PM"},
+       {0x05, 0xA0, "LM4F230E5QR/TM4C123GE6PM"},
+       {0x05, 0xA1, "LM4F230H5QR/TM4C123GH6PM"},
+       {0x05, 0xB0, "LM4F231E5QR/TM4C123FE6PM"},
+       {0x05, 0xB1, "LM4F231H5QR/TM4C123FH6PM"},
+       {0x05, 0xC0, "LM4F232E5QC/TM4C123GE6PZ"},
+       {0x05, 0xC1, "LM4F232H5QC/TM4C123GH6PZ"},
+       {0x05, 0xC3, "LM4F212E5QC/TM4C123BE6PZ"},
+       {0x05, 0xC4, "LM4F212H5QC/TM4C123BH6PZ"},
+       {0x05, 0xC5, "LM4F232H5QD/TM4C123GH6PGE"},
+       {0x05, 0xC6, "LM4F212H5QD/TM4C123BH6PGE"},
+       {0x05, 0xD0, "LM4F122C4QC/TM4C1233D5PZ"},
+       {0x05, 0xD1, "LM4F122E5QC/TM4C1233E6PZ"},
+       {0x05, 0xD2, "LM4F122H5QC/TM4C1233H6PZ"},
+       {0x05, 0xD6, "LM4F122H5QD/TM4C1233H6PGE"},
+       {0x05, 0xE1, "LM4FSXLH5BB"},
+       {0x05, 0xE3, "LM4F232H5BB/TM4C123GH6ZRB"},
+       {0x05, 0xE4, "LM4FS99H5BB"},
+       {0x05, 0xE5, "LM4FS1AH5BB"},
+       {0x05, 0xE9, "LM4F212H5BB/TM4C123BH6ZRB"},
+       {0x05, 0xEA, "LM4FS1GH5BB"},
+       {0x05, 0xF0, "TM4C123GH6ZXR"},
+       {0x0A, 0x19, "TM4C1290NCPDT"},
+       {0x0A, 0x1B, "TM4C1290NCZAD"},
+       {0x0A, 0x1C, "TM4C1292NCPDT"},
+       {0x0A, 0x1E, "TM4C1292NCZAD"},
+       {0x0A, 0x1F, "TM4C1294NCPDT"},
+       {0x0A, 0x21, "TM4C1294NCZAD"},
+       {0x0A, 0x22, "TM4C1297NCZAD"},
+       {0x0A, 0x23, "TM4C1299NCZAD"},
+       {0x0A, 0x24, "TM4C129CNCPDT"},
+       {0x0A, 0x26, "TM4C129CNCZAD"},
+       {0x0A, 0x27, "TM4C129DNCPDT"},
+       {0x0A, 0x29, "TM4C129DNCZAD"},
+       {0x0A, 0x2D, "TM4C129ENCPDT"},
+       {0x0A, 0x2F, "TM4C129ENCZAD"},
+       {0x0A, 0x30, "TM4C129LNCZAD"},
+       {0x0A, 0x32, "TM4C129XNCZAD"},
+       {0x0A, 0x34, "TM4C1294KCPDT"},
+       {0x0A, 0x35, "TM4C129EKCPDT"},
+       {0x0A, 0x36, "TM4C1299KCZAD"},
+       {0x0A, 0x37, "TM4C129XKCZAD"},
+       {0xFF, 0x00, "Unknown Part"}
+};
+
+static const char * const StellarisClassname[] = {
        "Sandstorm",
        "Fury",
        "Unknown",
        "DustDevil",
-       "Tempest"
+       "Tempest",
+       "Blizzard/TM4C123x",
+       "Firestorm",
+       "",
+       "",
+       "",
+       "Snowflake",
 };
 
 /***************************************************************************
@@ -234,10 +468,7 @@ FLASH_BANK_COMMAND_HANDLER(stellaris_flash_bank_command)
        struct stellaris_flash_bank *stellaris_info;
 
        if (CMD_ARGC < 6)
-       {
-               LOG_WARNING("incomplete flash_bank stellaris configuration");
-               return ERROR_FLASH_BANK_INVALID;
-       }
+               return ERROR_COMMAND_SYNTAX_ERROR;
 
        stellaris_info = calloc(sizeof(struct stellaris_flash_bank), 1);
        bank->base = 0x0;
@@ -255,9 +486,9 @@ FLASH_BANK_COMMAND_HANDLER(stellaris_flash_bank_command)
        return ERROR_OK;
 }
 
-static int stellaris_info(struct flash_bank *bank, char *buf, int buf_size)
+static int get_stellaris_info(struct flash_bank *bank, char *buf, int buf_size)
 {
-       int printed, device_class;
+       int printed;
        struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
 
        if (stellaris_info->did1 == 0)
@@ -266,20 +497,12 @@ static int stellaris_info(struct flash_bank *bank, char *buf, int buf_size)
        /* Read main and master clock freqency register */
        stellaris_read_clock_info(bank);
 
-       if (DID0_VER(stellaris_info->did0) > 0)
-       {
-               device_class = (stellaris_info->did0 >> 16) & 0xFF;
-       }
-       else
-       {
-               device_class = 0;
-       }
        printed = snprintf(buf,
                           buf_size,
                           "\nTI/LMI Stellaris information: Chip is "
                           "class %i (%s) %s rev %c%i\n",
-                          device_class,
-                          StellarisClassname[device_class],
+                          stellaris_info->target_class,
+                          StellarisClassname[stellaris_info->target_class],
                           stellaris_info->target_name,
                           (int)('A' + ((stellaris_info->did0 >> 8) & 0xFF)),
                           (int)((stellaris_info->did0) & 0xFF));
@@ -293,8 +516,8 @@ static int stellaris_info(struct flash_bank *bank, char *buf, int buf_size)
                           stellaris_info->did1,
                           stellaris_info->did1,
                           "ARMv7M",
-                          (int)((1 + ((stellaris_info->dc0 >> 16) & 0xFFFF))/4),
-                          (int)((1 + (stellaris_info->dc0 & 0xFFFF))*2));
+                          stellaris_info->sramsiz,
+                          stellaris_info->num_pages * stellaris_info->pagesize / 1024);
        buf += printed;
        buf_size -= printed;
 
@@ -309,9 +532,8 @@ static int stellaris_info(struct flash_bank *bank, char *buf, int buf_size)
        buf += printed;
        buf_size -= printed;
 
-       if (stellaris_info->num_lockbits > 0)
-       {
-               printed = snprintf(buf,
+       if (stellaris_info->num_lockbits > 0) {
+               snprintf(buf,
                                buf_size,
                                "pagesize: %" PRIi32 ", pages: %d, "
                                "lockbits: %i, pages per lockbit: %i\n",
@@ -319,8 +541,6 @@ static int stellaris_info(struct flash_bank *bank, char *buf, int buf_size)
                                (unsigned) stellaris_info->num_pages,
                                stellaris_info->num_lockbits,
                                (unsigned) stellaris_info->pages_in_lockregion);
-               buf += printed;
-               buf_size -= printed;
        }
        return ERROR_OK;
 }
@@ -336,7 +556,11 @@ static void stellaris_set_flash_timing(struct flash_bank *bank)
        struct target *target = bank->target;
        uint32_t usecrl = (stellaris_info->mck_freq/1000000ul-1);
 
-       LOG_DEBUG("usecrl = %i",(int)(usecrl));
+       /* only valid for Sandstorm and Fury class devices */
+       if (stellaris_info->target_class > 1)
+               return;
+
+       LOG_DEBUG("usecrl = %i", (int)(usecrl));
        target_write_u32(target, SCB_BASE | USECRL, usecrl);
 }
 
@@ -417,8 +641,7 @@ static void stellaris_read_clock_info(struct flash_bank *bank)
 
        stellaris_info->mck_desc = "";
 
-       switch (oscsrc)
-       {
+       switch (oscsrc) {
                case 0:                         /* MOSC */
                        mainfreq = rcc_xtal[xtal];
                        break;
@@ -473,23 +696,20 @@ static int stellaris_read_part_info(struct flash_bank *bank)
        LOG_DEBUG("did0 0x%" PRIx32 ", did1 0x%" PRIx32 ", dc0 0x%" PRIx32 ", dc1 0x%" PRIx32 "",
                  did0, did1, stellaris_info->dc0, stellaris_info->dc1);
 
-       ver = did0 >> 28;
-       if ((ver != 0) && (ver != 1))
-       {
+       ver = DID0_VER(did0);
+       if ((ver != 0) && (ver != 1)) {
                LOG_WARNING("Unknown did0 version, cannot identify target");
                return ERROR_FLASH_OPERATION_FAILED;
        }
 
-       if (did1 == 0)
-       {
+       if (did1 == 0) {
                LOG_WARNING("Cannot identify target as a Stellaris");
                return ERROR_FLASH_OPERATION_FAILED;
        }
 
        ver = did1 >> 28;
        fam = (did1 >> 24) & 0xF;
-       if (((ver != 0) && (ver != 1)) || (fam != 0))
-       {
+       if (((ver != 0) && (ver != 1)) || (fam != 0)) {
                LOG_WARNING("Unknown did1 version/family.");
                return ERROR_FLASH_OPERATION_FAILED;
        }
@@ -500,46 +720,56 @@ static int stellaris_read_part_info(struct flash_bank *bank)
         * always approximate.
         *
         * For Tempest:  IOSC is calibrated, 16 MHz
+        * For Blizzard:  IOSC is calibrated, 16 MHz
+        * For Firestorm:  IOSC is calibrated, 16 MHz
         */
        stellaris_info->iosc_freq = 12000000;
        stellaris_info->iosc_desc = " (±30%)";
        stellaris_info->xtal_mask = 0x0f;
 
-       switch ((did0 >> 28) & 0x7) {
-       case 0:                         /* Sandstorm */
-               /*
-                * Current (2009-August) parts seem to be rev C2 and use 12 MHz.
-                * Parts before rev C0 used 15 MHz; some C0 parts use 15 MHz
-                * (LM3S618), but some other C0 parts are 12 MHz (LM3S811).
-                */
-               if (((did0 >> 8) & 0xff) < 2) {
-                       stellaris_info->iosc_freq = 15000000;
-                       stellaris_info->iosc_desc = " (±50%)";
-               }
-               break;
-       case 1:
-               switch ((did0 >> 16) & 0xff) {
+       /* get device class */
+       if (DID0_VER(did0) > 0) {
+               stellaris_info->target_class = (did0 >> 16) & 0xFF;
+       } else {
+               /* Sandstorm class */
+               stellaris_info->target_class = 0;
+       }
+
+       switch (stellaris_info->target_class) {
+               case 0:                         /* Sandstorm */
+                       /*
+                        * Current (2009-August) parts seem to be rev C2 and use 12 MHz.
+                        * Parts before rev C0 used 15 MHz; some C0 parts use 15 MHz
+                        * (LM3S618), but some other C0 parts are 12 MHz (LM3S811).
+                        */
+                       if (((did0 >> 8) & 0xff) < 2) {
+                               stellaris_info->iosc_freq = 15000000;
+                               stellaris_info->iosc_desc = " (±50%)";
+                       }
+                       break;
+
                case 1:                 /* Fury */
                        break;
+
                case 4:                 /* Tempest */
+               case 5:                 /* Blizzard */
+               case 6:                 /* Firestorm */
+               case 0xa:               /* Snowflake */
                        stellaris_info->iosc_freq = 16000000;   /* +/- 1% */
                        stellaris_info->iosc_desc = " (±1%)";
                        /* FALL THROUGH */
+
                case 3:                 /* DustDevil */
                        stellaris_info->xtal_mask = 0x1f;
                        break;
+
                default:
                        LOG_WARNING("Unknown did0 class");
-               }
-               break;
-       default:
-               LOG_WARNING("Unknown did0 version");
-               break;
        }
 
-       for (i = 0; StellarisParts[i].partno; i++)
-       {
-               if (StellarisParts[i].partno == ((did1 >> 16) & 0xFFFF))
+       for (i = 0; StellarisParts[i].partno; i++) {
+               if ((StellarisParts[i].partno == ((did1 >> 16) & 0xFF)) &&
+                               (StellarisParts[i].class == stellaris_info->target_class))
                        break;
        }
 
@@ -548,10 +778,34 @@ static int stellaris_read_part_info(struct flash_bank *bank)
        stellaris_info->did0 = did0;
        stellaris_info->did1 = did1;
 
-       stellaris_info->num_lockbits = 1 + (stellaris_info->dc0 & 0xFFFF);
-       stellaris_info->num_pages = 2 *(1 + (stellaris_info->dc0 & 0xFFFF));
-       stellaris_info->pagesize = 1024;
-       stellaris_info->pages_in_lockregion = 2;
+       if (stellaris_info->target_class == 5) { /* Blizzard */
+               target_read_u32(target, FLASH_FSIZE, &stellaris_info->fsize);
+               target_read_u32(target, FLASH_SSIZE, &stellaris_info->ssize);
+
+               stellaris_info->num_lockbits = 1 + (stellaris_info->fsize & 0xFFFF);
+               stellaris_info->num_pages = 2 * (1 + (stellaris_info->fsize & 0xFFFF));
+               stellaris_info->sramsiz = (1 + (stellaris_info->ssize & 0xFFFF)) / 4;
+               stellaris_info->pagesize = 1024;
+               stellaris_info->pages_in_lockregion = 2;
+       } else if (stellaris_info->target_class == 0xa) { /* Snowflake */
+               target_read_u32(target, FLASH_FSIZE, &stellaris_info->fsize);
+               target_read_u32(target, FLASH_SSIZE, &stellaris_info->ssize);
+
+               stellaris_info->pagesize = (1 << ((stellaris_info->fsize >> 16) & 7)) * 1024;
+               stellaris_info->num_pages = 2048 * (1 + (stellaris_info->fsize & 0xFFFF)) /
+                       stellaris_info->pagesize;
+               stellaris_info->pages_in_lockregion = 1;
+
+               stellaris_info->num_lockbits = stellaris_info->pagesize * stellaris_info->num_pages /
+                       2048;
+               stellaris_info->sramsiz = (1 + (stellaris_info->ssize & 0xFFFF)) / 4;
+       } else {
+               stellaris_info->num_lockbits = 1 + (stellaris_info->dc0 & 0xFFFF);
+               stellaris_info->num_pages = 2 * (1 + (stellaris_info->dc0 & 0xFFFF));
+               stellaris_info->sramsiz = (1 + ((stellaris_info->dc0 >> 16) & 0xFFFF)) / 4;
+               stellaris_info->pagesize = 1024;
+               stellaris_info->pages_in_lockregion = 2;
+       }
 
        /* REVISIT for at least Tempest parts, read NVMSTAT.FWB too.
         * That exposes a 32-word Flash Write Buffer ... enabling
@@ -575,6 +829,11 @@ static int stellaris_protect_check(struct flash_bank *bank)
        if (stellaris->did1 == 0)
                return ERROR_FLASH_BANK_NOT_PROBED;
 
+       if (stellaris->target_class == 0xa) {
+               LOG_WARNING("Assuming flash to be unprotected on Snowflake");
+               return ERROR_OK;
+       }
+
        for (i = 0; i < (unsigned) bank->num_sectors; i++)
                bank->sectors[i].is_protected = -1;
 
@@ -618,8 +877,7 @@ static int stellaris_erase(struct flash_bank *bank, int first, int last)
        struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
        struct target *target = bank->target;
 
-       if (bank->target->state != TARGET_HALTED)
-       {
+       if (bank->target->state != TARGET_HALTED) {
                LOG_ERROR("Target not halted");
                return ERROR_TARGET_NOT_HALTED;
        }
@@ -628,14 +886,10 @@ static int stellaris_erase(struct flash_bank *bank, int first, int last)
                return ERROR_FLASH_BANK_NOT_PROBED;
 
        if ((first < 0) || (last < first) || (last >= (int)stellaris_info->num_pages))
-       {
                return ERROR_FLASH_SECTOR_INVALID;
-       }
 
        if ((first == 0) && (last == ((int)stellaris_info->num_pages-1)))
-       {
                return stellaris_mass_erase(bank);
-       }
 
        /* Refresh flash controller timing */
        stellaris_read_clock_info(bank);
@@ -649,24 +903,21 @@ static int stellaris_erase(struct flash_bank *bank, int first, int last)
         * it might want to process those IRQs.
         */
 
-       for (banknr = first; banknr <= last; banknr++)
-       {
+       for (banknr = first; banknr <= last; banknr++) {
                /* Address is first word in page */
                target_write_u32(target, FLASH_FMA, banknr * stellaris_info->pagesize);
                /* Write erase command */
                target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_ERASE);
                /* Wait until erase complete */
-               do
-               {
+               do {
                        target_read_u32(target, FLASH_FMC, &flash_fmc);
-               }
-               while (flash_fmc & FMC_ERASE);
+               } while (flash_fmc & FMC_ERASE);
 
                /* Check acess violations */
                target_read_u32(target, FLASH_CRIS, &flash_cris);
-               if (flash_cris & (AMASK))
-               {
-                       LOG_WARNING("Error erasing flash page %i,  flash_cris 0x%" PRIx32 "", banknr, flash_cris);
+               if (flash_cris & (AMASK)) {
+                       LOG_WARNING("Error erasing flash page %i,  flash_cris 0x%" PRIx32 "",
+                                       banknr, flash_cris);
                        target_write_u32(target, FLASH_CRIS, 0);
                        return ERROR_FLASH_OPERATION_FAILED;
                }
@@ -685,28 +936,30 @@ static int stellaris_protect(struct flash_bank *bank, int set, int first, int la
        struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
        struct target *target = bank->target;
 
-       if (bank->target->state != TARGET_HALTED)
-       {
+       if (bank->target->state != TARGET_HALTED) {
                LOG_ERROR("Target not halted");
                return ERROR_TARGET_NOT_HALTED;
        }
 
-       if (!set)
-       {
-               LOG_ERROR("Can't unprotect write-protected pages.");
-               /* except by the "recover locked device" procedure ... */
-               return ERROR_INVALID_ARGUMENTS;
+       if (!set) {
+               LOG_ERROR("Hardware doesn't support page-level unprotect. "
+                       "Try the 'recover' command.");
+               return ERROR_COMMAND_SYNTAX_ERROR;
        }
 
        if (stellaris_info->did1 == 0)
                return ERROR_FLASH_BANK_NOT_PROBED;
 
+       if (stellaris_info->target_class == 0xa) {
+               LOG_ERROR("Protection on Snowflake is not supported yet");
+               return ERROR_FLASH_OPERATION_FAILED;
+       }
+
        /* lockregions are 2 pages ... must protect [even..odd] */
        if ((first < 0) || (first & 1)
                        || (last < first) || !(last & 1)
-                       || (last >= 2 * stellaris_info->num_lockbits))
-       {
-               LOG_ERROR("Can't protect unaligned or out-of-range sectors.");
+                       || (last >= 2 * stellaris_info->num_lockbits)) {
+               LOG_ERROR("Can't protect unaligned or out-of-range pages.");
                return ERROR_FLASH_SECTOR_INVALID;
        }
 
@@ -739,7 +992,7 @@ static int stellaris_protect(struct flash_bank *bank, int set, int first, int la
         * it might want to process those IRQs.
         */
 
-       LOG_DEBUG("fmppe 0x%" PRIx32 "",fmppe);
+       LOG_DEBUG("fmppe 0x%" PRIx32 "", fmppe);
        target_write_u32(target, SCB_BASE | FMPPE, fmppe);
 
        /* Commit FMPPE */
@@ -751,20 +1004,17 @@ static int stellaris_protect(struct flash_bank *bank, int set, int first, int la
         * REVISIT DustDevil-A0 parts have an erratum making FMPPE commits
         * inadvisable ... it makes future mass erase operations fail.
         */
-       LOG_WARNING("Flash protection cannot be removed once commited, commit is NOT executed !");
+       LOG_WARNING("Flash protection cannot be removed once committed, commit is NOT executed !");
        /* target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_COMT); */
 
        /* Wait until erase complete */
-       do
-       {
+       do {
                target_read_u32(target, FLASH_FMC, &flash_fmc);
-       }
-       while (flash_fmc & FMC_COMT);
+       } while (flash_fmc & FMC_COMT);
 
        /* Check acess violations */
        target_read_u32(target, FLASH_CRIS, &flash_cris);
-       if (flash_cris & (AMASK))
-       {
+       if (flash_cris & (AMASK)) {
                LOG_WARNING("Error setting flash page protection,  flash_cris 0x%" PRIx32 "", flash_cris);
                target_write_u32(target, FLASH_CRIS, 0);
                return ERROR_FLASH_OPERATION_FAILED;
@@ -773,55 +1023,53 @@ static int stellaris_protect(struct flash_bank *bank, int set, int first, int la
        return ERROR_OK;
 }
 
-static const uint8_t stellaris_write_code[] =
-{
-/*
-       Call with :
-       r0 = buffer address
-       r1 = destination address
-       r2 = bytecount (in) - endaddr (work)
-
-       Used registers:
-       r3 = pFLASH_CTRL_BASE
-       r4 = FLASHWRITECMD
-       r5 = #1
-       r6 = bytes written
-       r7 = temp reg
-*/
-       0x07,0x4B,                      /* ldr r3,pFLASH_CTRL_BASE */
-       0x08,0x4C,                      /* ldr r4,FLASHWRITECMD */
-       0x01,0x25,                      /* movs r5, 1 */
-       0x00,0x26,                      /* movs r6, #0 */
-/* mainloop: */
-       0x19,0x60,                      /* str  r1, [r3, #0] */
-       0x87,0x59,                      /* ldr  r7, [r0, r6] */
-       0x5F,0x60,                      /* str  r7, [r3, #4] */
-       0x9C,0x60,                      /* str  r4, [r3, #8] */
-/* waitloop: */
-       0x9F,0x68,                      /* ldr  r7, [r3, #8] */
-       0x2F,0x42,                      /* tst  r7, r5 */
-       0xFC,0xD1,                      /* bne  waitloop */
-       0x04,0x31,                      /* adds r1, r1, #4 */
-       0x04,0x36,                      /* adds r6, r6, #4 */
-       0x96,0x42,                      /* cmp  r6, r2 */
-       0xF4,0xD1,                      /* bne  mainloop */
-                                               /* exit: */
-       0xFE,0xE7,                      /* b exit */
-/* pFLASH_CTRL_BASE: */
-       0x00,0xD0,0x0F,0x40,    /* .word        0x400FD000 */
-/* FLASHWRITECMD: */
-       0x01,0x00,0x42,0xA4     /* .word        0xA4420001 */
+/* see contib/loaders/flash/stellaris.s for src */
+
+static const uint8_t stellaris_write_code[] = {
+                                                               /* write: */
+       0xDF, 0xF8, 0x40, 0x40,         /* ldr          r4, pFLASH_CTRL_BASE */
+       0xDF, 0xF8, 0x40, 0x50,         /* ldr          r5, FLASHWRITECMD */
+                                                               /* wait_fifo: */
+       0xD0, 0xF8, 0x00, 0x80,         /* ldr          r8, [r0, #0] */
+       0xB8, 0xF1, 0x00, 0x0F,         /* cmp          r8, #0 */
+       0x17, 0xD0,                                     /* beq          exit */
+       0x47, 0x68,                                     /* ldr          r7, [r0, #4] */
+       0x47, 0x45,                                     /* cmp          r7, r8 */
+       0xF7, 0xD0,                                     /* beq          wait_fifo */
+                                                               /* mainloop: */
+       0x22, 0x60,                                     /* str          r2, [r4, #0] */
+       0x02, 0xF1, 0x04, 0x02,         /* add          r2, r2, #4 */
+       0x57, 0xF8, 0x04, 0x8B,         /* ldr          r8, [r7], #4 */
+       0xC4, 0xF8, 0x04, 0x80,         /* str          r8, [r4, #4] */
+       0xA5, 0x60,                                     /* str          r5, [r4, #8] */
+                                                               /* busy: */
+       0xD4, 0xF8, 0x08, 0x80,         /* ldr          r8, [r4, #8] */
+       0x18, 0xF0, 0x01, 0x0F,         /* tst          r8, #1 */
+       0xFA, 0xD1,                                     /* bne          busy */
+       0x8F, 0x42,                                     /* cmp          r7, r1 */
+       0x28, 0xBF,                                     /* it           cs */
+       0x00, 0xF1, 0x08, 0x07,         /* addcs        r7, r0, #8 */
+       0x47, 0x60,                                     /* str          r7, [r0, #4] */
+       0x01, 0x3B,                                     /* subs         r3, r3, #1 */
+       0x03, 0xB1,                                     /* cbz          r3, exit */
+       0xE2, 0xE7,                                     /* b            wait_fifo */
+                                                               /* exit: */
+       0x00, 0xBE,                                     /* bkpt         #0 */
+
+       /* pFLASH_CTRL_BASE: */
+       0x00, 0xD0, 0x0F, 0x40, /* .word        0x400FD000 */
+       /* FLASHWRITECMD: */
+       0x01, 0x00, 0x42, 0xA4  /* .word        0xA4420001 */
 };
-
 static int stellaris_write_block(struct flash_bank *bank,
-               uint8_t *buffer, uint32_t offset, uint32_t wcount)
+               const uint8_t *buffer, uint32_t offset, uint32_t wcount)
 {
        struct target *target = bank->target;
-       uint32_t buffer_size = 8192;
+       uint32_t buffer_size = 16384;
        struct working_area *source;
        struct working_area *write_algorithm;
        uint32_t address = bank->base + offset;
-       struct reg_param reg_params[3];
+       struct reg_param reg_params[4];
        struct armv7m_algorithm armv7m_info;
        int retval = ERROR_OK;
 
@@ -836,8 +1084,8 @@ static int stellaris_write_block(struct flash_bank *bank,
                        bank, buffer, offset, wcount);
 
        /* flash write code */
-       if (target_alloc_working_area(target, sizeof(stellaris_write_code), &write_algorithm) != ERROR_OK)
-       {
+       if (target_alloc_working_area(target, sizeof(stellaris_write_code),
+                       &write_algorithm) != ERROR_OK) {
                LOG_DEBUG("no working area for block memory writes");
                return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
        };
@@ -847,11 +1095,9 @@ static int stellaris_write_block(struct flash_bank *bank,
                buffer_size = wcount * 4;
 
        /* memory buffer */
-       while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)
-       {
+       while (target_alloc_working_area_try(target, buffer_size, &source) != ERROR_OK) {
                buffer_size /= 2;
-               if (buffer_size <= buf_min)
-               {
+               if (buffer_size <= buf_min) {
                        target_free_working_area(target, write_algorithm);
                        return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
                }
@@ -859,52 +1105,32 @@ static int stellaris_write_block(struct flash_bank *bank,
                                target_name(target), (unsigned) buffer_size);
        };
 
-       retval = target_write_buffer(target, write_algorithm->address,
+       target_write_buffer(target, write_algorithm->address,
                        sizeof(stellaris_write_code),
-                       (uint8_t *) stellaris_write_code);
+                       stellaris_write_code);
 
        armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
-       armv7m_info.core_mode = ARMV7M_MODE_ANY;
+       armv7m_info.core_mode = ARM_MODE_THREAD;
 
        init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);
        init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
        init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT);
+       init_reg_param(&reg_params[3], "r3", 32, PARAM_OUT);
 
-       while (wcount > 0)
-       {
-               uint32_t thisrun_count = (wcount > (buffer_size / 4)) ? (buffer_size / 4) : wcount;
-
-               target_write_buffer(target, source->address, thisrun_count * 4, buffer);
-
-               buf_set_u32(reg_params[0].value, 0, 32, source->address);
-               buf_set_u32(reg_params[1].value, 0, 32, address);
-               buf_set_u32(reg_params[2].value, 0, 32, 4*thisrun_count);
-               LOG_DEBUG("Algorithm flash write %u words to 0x%" PRIx32
-                               ", %u remaining",
-                               (unsigned) thisrun_count, address,
-                               (unsigned) (wcount - thisrun_count));
-               retval = target_run_algorithm(target, 0, NULL, 3, reg_params,
-                               write_algorithm->address,
-                               write_algorithm->address +
-                                       sizeof(stellaris_write_code) - 10,
-                               10000, &armv7m_info);
-               if (retval != ERROR_OK)
-               {
-                       LOG_ERROR("error %d executing stellaris "
-                                       "flash write algorithm",
-                                       retval);
-                       retval = ERROR_FLASH_OPERATION_FAILED;
-                       break;
-               }
+       buf_set_u32(reg_params[0].value, 0, 32, source->address);
+       buf_set_u32(reg_params[1].value, 0, 32, source->address + source->size);
+       buf_set_u32(reg_params[2].value, 0, 32, address);
+       buf_set_u32(reg_params[3].value, 0, 32, wcount);
 
-               buffer += thisrun_count * 4;
-               address += thisrun_count * 4;
-               wcount -= thisrun_count;
-       }
+       retval = target_run_flash_async_algorithm(target, buffer, wcount, 4,
+                       0, NULL,
+                       4, reg_params,
+                       source->address, source->size,
+                       write_algorithm->address, 0,
+                       &armv7m_info);
 
-       /* REVISIT we could speed up writing multi-section images by
-        * not freeing the initialized write_algorithm this way.
-        */
+       if (retval == ERROR_FLASH_OPERATION_FAILED)
+               LOG_ERROR("error %d executing stellaris flash write algorithm", retval);
 
        target_free_working_area(target, write_algorithm);
        target_free_working_area(target, source);
@@ -912,11 +1138,13 @@ static int stellaris_write_block(struct flash_bank *bank,
        destroy_reg_param(&reg_params[0]);
        destroy_reg_param(&reg_params[1]);
        destroy_reg_param(&reg_params[2]);
+       destroy_reg_param(&reg_params[3]);
 
        return retval;
 }
 
-static int stellaris_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
+static int stellaris_write(struct flash_bank *bank, const uint8_t *buffer,
+               uint32_t offset, uint32_t count)
 {
        struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
        struct target *target = bank->target;
@@ -927,8 +1155,7 @@ static int stellaris_write(struct flash_bank *bank, uint8_t *buffer, uint32_t of
        uint32_t bytes_written = 0;
        int retval;
 
-       if (bank->target->state != TARGET_HALTED)
-       {
+       if (bank->target->state != TARGET_HALTED) {
                LOG_ERROR("Target not halted");
                return ERROR_TARGET_NOT_HALTED;
        }
@@ -939,8 +1166,7 @@ static int stellaris_write(struct flash_bank *bank, uint8_t *buffer, uint32_t of
        if (stellaris_info->did1 == 0)
                return ERROR_FLASH_BANK_NOT_PROBED;
 
-       if (offset & 0x3)
-       {
+       if (offset & 0x3) {
                LOG_WARNING("offset size must be word aligned");
                return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
        }
@@ -961,36 +1187,28 @@ static int stellaris_write(struct flash_bank *bank, uint8_t *buffer, uint32_t of
         */
 
        /* multiple words to be programmed? */
-       if (words_remaining > 0)
-       {
+       if (words_remaining > 0) {
                /* try using a block write */
                retval = stellaris_write_block(bank, buffer, offset,
                                words_remaining);
-               if (retval != ERROR_OK)
-               {
-                       if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
-                       {
+               if (retval != ERROR_OK) {
+                       if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE) {
                                LOG_DEBUG("writing flash word-at-a-time");
-                       }
-                       else if (retval == ERROR_FLASH_OPERATION_FAILED)
-                       {
+                       } else if (retval == ERROR_FLASH_OPERATION_FAILED) {
                                /* if an error occured, we examine the reason, and quit */
                                target_read_u32(target, FLASH_CRIS, &flash_cris);
 
                                LOG_ERROR("flash writing failed with CRIS: 0x%" PRIx32 "", flash_cris);
                                return ERROR_FLASH_OPERATION_FAILED;
                        }
-               }
-               else
-               {
+               } else {
                        buffer += words_remaining * 4;
                        address += words_remaining * 4;
                        words_remaining = 0;
                }
        }
 
-       while (words_remaining > 0)
-       {
+       while (words_remaining > 0) {
                if (!(address & 0xff))
                        LOG_DEBUG("0x%" PRIx32 "", address);
 
@@ -1000,8 +1218,7 @@ static int stellaris_write(struct flash_bank *bank, uint8_t *buffer, uint32_t of
                target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_WRITE);
                /* LOG_DEBUG("0x%x 0x%x 0x%x",address,buf_get_u32(buffer, 0, 32),FMC_WRKEY | FMC_WRITE); */
                /* Wait until write complete */
-               do
-               {
+               do {
                        target_read_u32(target, FLASH_FMC, &flash_fmc);
                } while (flash_fmc & FMC_WRITE);
 
@@ -1010,17 +1227,11 @@ static int stellaris_write(struct flash_bank *bank, uint8_t *buffer, uint32_t of
                words_remaining--;
        }
 
-       if (bytes_remaining)
-       {
+       if (bytes_remaining) {
                uint8_t last_word[4] = {0xff, 0xff, 0xff, 0xff};
-               int i = 0;
 
-               while (bytes_remaining > 0)
-               {
-                       last_word[i++] = *(buffer + bytes_written);
-                       bytes_remaining--;
-                       bytes_written++;
-               }
+               /* copy the last remaining bytes into the write buffer */
+               memcpy(last_word, buffer+bytes_written, bytes_remaining);
 
                if (!(address & 0xff))
                        LOG_DEBUG("0x%" PRIx32 "", address);
@@ -1031,16 +1242,14 @@ static int stellaris_write(struct flash_bank *bank, uint8_t *buffer, uint32_t of
                target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_WRITE);
                /* LOG_DEBUG("0x%x 0x%x 0x%x",address,buf_get_u32(buffer, 0, 32),FMC_WRKEY | FMC_WRITE); */
                /* Wait until write complete */
-               do
-               {
+               do {
                        target_read_u32(target, FLASH_FMC, &flash_fmc);
                } while (flash_fmc & FMC_WRITE);
        }
 
        /* Check access violations */
        target_read_u32(target, FLASH_CRIS, &flash_cris);
-       if (flash_cris & (AMASK))
-       {
+       if (flash_cris & (AMASK)) {
                LOG_DEBUG("flash_cris 0x%" PRIx32 "", flash_cris);
                return ERROR_FLASH_OPERATION_FAILED;
        }
@@ -1066,12 +1275,16 @@ static int stellaris_probe(struct flash_bank *bank)
        if (retval != ERROR_OK)
                return retval;
 
+       if (bank->sectors) {
+               free(bank->sectors);
+               bank->sectors = NULL;
+       }
+
        /* provide this for the benefit of the NOR flash framework */
-       bank->size = 1024 * stellaris_info->num_pages;
+       bank->size = stellaris_info->num_pages * stellaris_info->pagesize;
        bank->num_sectors = stellaris_info->num_pages;
        bank->sectors = calloc(bank->num_sectors, sizeof(struct flash_sector));
-       for (int i = 0; i < bank->num_sectors; i++)
-       {
+       for (int i = 0; i < bank->num_sectors; i++) {
                bank->sectors[i].offset = i * stellaris_info->pagesize;
                bank->sectors[i].size = stellaris_info->pagesize;
                bank->sectors[i].is_erased = -1;
@@ -1090,8 +1303,7 @@ static int stellaris_mass_erase(struct flash_bank *bank)
        stellaris_info = bank->driver_priv;
        target = bank->target;
 
-       if (target->state != TARGET_HALTED)
-       {
+       if (target->state != TARGET_HALTED) {
                LOG_ERROR("Target not halted");
                return ERROR_TARGET_NOT_HALTED;
        }
@@ -1114,24 +1326,19 @@ static int stellaris_mass_erase(struct flash_bank *bank)
        target_write_u32(target, FLASH_FMA, 0);
        target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_MERASE);
        /* Wait until erase complete */
-       do
-       {
+       do {
                target_read_u32(target, FLASH_FMC, &flash_fmc);
-       }
-       while (flash_fmc & FMC_MERASE);
+       } while (flash_fmc & FMC_MERASE);
 
        /* if device has > 128k, then second erase cycle is needed
         * this is only valid for older devices, but will not hurt */
-       if (stellaris_info->num_pages * stellaris_info->pagesize > 0x20000)
-       {
+       if (stellaris_info->num_pages * stellaris_info->pagesize > 0x20000) {
                target_write_u32(target, FLASH_FMA, 0x20000);
                target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_MERASE);
                /* Wait until erase complete */
-               do
-               {
+               do {
                        target_read_u32(target, FLASH_FMC, &flash_fmc);
-               }
-               while (flash_fmc & FMC_MERASE);
+               } while (flash_fmc & FMC_MERASE);
        }
 
        return ERROR_OK;
@@ -1142,30 +1349,21 @@ COMMAND_HANDLER(stellaris_handle_mass_erase_command)
        int i;
 
        if (CMD_ARGC < 1)
-       {
-               command_print(CMD_CTX, "stellaris mass_erase <bank>");
-               return ERROR_OK;
-       }
+               return ERROR_COMMAND_SYNTAX_ERROR;
 
        struct flash_bank *bank;
        int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
        if (ERROR_OK != retval)
                return retval;
 
-       if (stellaris_mass_erase(bank) == ERROR_OK)
-       {
+       if (stellaris_mass_erase(bank) == ERROR_OK) {
                /* set all sectors as erased */
                for (i = 0; i < bank->num_sectors; i++)
-               {
                        bank->sectors[i].is_erased = 1;
-               }
 
                command_print(CMD_CTX, "stellaris mass erase complete");
-       }
-       else
-       {
+       } else
                command_print(CMD_CTX, "stellaris mass erase failed");
-       }
 
        return ERROR_OK;
 }
@@ -1199,7 +1397,7 @@ COMMAND_HANDLER(stellaris_handle_recover_command)
                LOG_ERROR("Can't recover Stellaris flash without SRST");
                return ERROR_FAIL;
        }
-       jtag_add_reset(0, 1);
+       adapter_assert_reset();
 
        for (int i = 0; i < 5; i++) {
                retval = dap_to_swd(bank->target);
@@ -1212,11 +1410,11 @@ COMMAND_HANDLER(stellaris_handle_recover_command)
        }
 
        /* de-assert SRST */
-       jtag_add_reset(0, 0);
+       adapter_deassert_reset();
        retval = jtag_execute_queue();
 
        /* wait 400+ msec ... OK, "1+ second" is simpler */
-       sleep(1);
+       usleep(1000);
 
        /* USER INTERVENTION required for the power cycle
         * Restarting OpenOCD is likely needed because of mode switching.
@@ -1231,9 +1429,9 @@ done:
 static const struct command_registration stellaris_exec_command_handlers[] = {
        {
                .name = "mass_erase",
+               .usage = "<bank>",
                .handler = stellaris_handle_mass_erase_command,
                .mode = COMMAND_EXEC,
-               .usage = "bank_id",
                .help = "erase entire device",
        },
        {
@@ -1241,7 +1439,7 @@ static const struct command_registration stellaris_exec_command_handlers[] = {
                .handler = stellaris_handle_recover_command,
                .mode = COMMAND_EXEC,
                .usage = "bank_id",
-               .help = "recover locked device",
+               .help = "recover (and erase) locked device",
        },
        COMMAND_REGISTRATION_DONE
 };
@@ -1250,6 +1448,7 @@ static const struct command_registration stellaris_command_handlers[] = {
                .name = "stellaris",
                .mode = COMMAND_EXEC,
                .help = "Stellaris flash command group",
+               .usage = "",
                .chain = stellaris_exec_command_handlers,
        },
        COMMAND_REGISTRATION_DONE
@@ -1262,9 +1461,10 @@ struct flash_driver stellaris_flash = {
        .erase = stellaris_erase,
        .protect = stellaris_protect,
        .write = stellaris_write,
+       .read = default_flash_read,
        .probe = stellaris_probe,
        .auto_probe = stellaris_probe,
-       .erase_check = default_flash_mem_blank_check,
+       .erase_check = default_flash_blank_check,
        .protect_check = stellaris_protect_check,
-       .info = stellaris_info,
+       .info = get_stellaris_info,
 };

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