#include "imp.h"
#include "stellaris.h"
-#include <helper/binarybuffer.h>
#include <target/algorithm.h>
#include <target/armv7m.h>
#define DID0_VER(did0) ((did0 >> 28)&0x07)
-static int stellaris_read_part_info(struct flash_bank *bank);
-static uint32_t stellaris_get_flash_status(struct flash_bank *bank);
-static void stellaris_set_flash_mode(struct flash_bank *bank,int mode);
-//static uint32_t stellaris_wait_status_busy(struct flash_bank *bank, uint32_t waitbits, int timeout);
-
+static void stellaris_read_clock_info(struct flash_bank *bank);
static int stellaris_mass_erase(struct flash_bank *bank);
static struct {
char *partname;
} StellarisParts[] =
{
- {0x01,"LM3S101"},
- {0x02,"LM3S102"},
- {0x03,"LM3S1625"},
- {0x04,"LM3S1626"},
- {0x05,"LM3S1627"},
- {0x06,"LM3S1607"},
- {0x10,"LM3S1776"},
- {0x19,"LM3S300"},
- {0x11,"LM3S301"},
- {0x12,"LM3S310"},
- {0x1A,"LM3S308"},
- {0x13,"LM3S315"},
- {0x14,"LM3S316"},
- {0x17,"LM3S317"},
- {0x18,"LM3S318"},
- {0x15,"LM3S328"},
- {0x2A,"LM3S600"},
- {0x21,"LM3S601"},
- {0x2B,"LM3S608"},
- {0x22,"LM3S610"},
- {0x23,"LM3S611"},
- {0x24,"LM3S612"},
- {0x25,"LM3S613"},
- {0x26,"LM3S615"},
- {0x28,"LM3S617"},
- {0x29,"LM3S618"},
- {0x27,"LM3S628"},
- {0x38,"LM3S800"},
- {0x31,"LM3S801"},
- {0x39,"LM3S808"},
- {0x32,"LM3S811"},
- {0x33,"LM3S812"},
- /*{0x33,"LM3S2616"},*/
- {0x34,"LM3S815"},
- {0x36,"LM3S817"},
- {0x37,"LM3S818"},
- {0x35,"LM3S828"},
- {0x39,"LM3S2276"},
- {0x3A,"LM3S2776"},
- {0x43,"LM3S3651"},
- {0x44,"LM3S3739"},
- {0x45,"LM3S3749"},
- {0x46,"LM3S3759"},
- {0x48,"LM3S3768"},
- {0x49,"LM3S3748"},
- {0x50,"LM3S2678"},
- {0x51,"LM3S2110"},
- {0x52,"LM3S2739"},
- {0x53,"LM3S2651"},
- {0x54,"LM3S2939"},
- {0x55,"LM3S2965"},
- {0x56,"LM3S2432"},
- {0x57,"LM3S2620"},
- {0x58,"LM3S2950"},
- {0x59,"LM3S2412"},
- {0x5A,"LM3S2533"},
- {0x61,"LM3S8630"},
- {0x62,"LM3S8970"},
- {0x63,"LM3S8730"},
- {0x64,"LM3S8530"},
- {0x65,"LM3S8930"},
- {0x71,"LM3S6610"},
- {0x72,"LM3S6950"},
- {0x73,"LM3S6965"},
- {0x74,"LM3S6110"},
- {0x75,"LM3S6432"},
- {0x76,"LM3S6537"},
- {0x77,"LM3S6753"},
- {0x78,"LM3S6952"},
- {0x80,"LM3S2671"},
- {0x81,"LM3S5632"},
- {0x82,"LM3S6422"},
- {0x83,"LM3S6633"},
- {0x84,"LM3S2139"},
- {0x85,"LM3S2637"},
- {0x86,"LM3S8738"},
- {0x88,"LM3S8938"},
- {0x89,"LM3S6938"},
- {0x8A,"LM3S5652"},
- {0x8B,"LM3S6637"},
- {0x8C,"LM3S8933"},
- {0x8D,"LM3S8733"},
- {0x8E,"LM3S8538"},
- {0x8F,"LM3S2948"},
- {0x91,"LM3S5662"},
- {0x96,"LM3S5732"},
- {0x97,"LM3S5737"},
- {0x99,"LM3S5747"},
- {0x9A,"LM3S5752"},
- {0x9B,"LM3S5757"},
- {0x9C,"LM3S5762"},
- {0x9D,"LM3S5767"},
- {0xA0,"LM3S5739"},
- {0xA1,"LM3S6100"},
- {0xA2,"LM3S2410"},
- {0xA3,"LM3S6730"},
- {0xA4,"LM3S2730"},
- {0xA5,"LM3S6420"},
- {0xA6,"LM3S8962"},
- {0xA7,"LM3S5749"},
- {0xA8,"LM3S5769"},
- {0xA9,"LM3S5768"},
- {0xB3,"LM3S1635"},
- {0xB4,"LM3S1850"},
- {0xB5,"LM3S1960"},
- {0xB7,"LM3S1937"},
- {0xB8,"LM3S1968"},
- {0xB9,"LM3S1751"},
- {0xBA,"LM3S1439"},
- {0xBB,"LM3S1512"},
- {0xBC,"LM3S1435"},
- {0xBD,"LM3S1637"},
- {0xBE,"LM3S1958"},
- {0xBF,"LM3S1110"},
- {0xC0,"LM3S1620"},
- {0xC1,"LM3S1150"},
- {0xC2,"LM3S1165"},
- {0xC3,"LM3S1133"},
- {0xC4,"LM3S1162"},
- {0xC5,"LM3S1138"},
- {0xC6,"LM3S1332"},
- {0xC7,"LM3S1538"},
- {0xD0,"LM3S6815"},
- {0xD1,"LM3S6816"},
- {0xD2,"LM3S6915"},
- {0xD3,"LM3S6916"},
- {0xD4,"LM3S2016"},
- {0xD5,"LM3S1615"},
- {0xD6,"LM3S1616"},
- {0xD7,"LM3S8971"},
- {0xD8,"LM3S1108"},
- {0xD9,"LM3S1101"},
- {0xDA,"LM3S1608"},
- {0xDB,"LM3S1601"},
- {0xDC,"LM3S1918"},
- {0xDD,"LM3S1911"},
- {0xDE,"LM3S2108"},
- {0xDF,"LM3S2101"},
- {0xE0,"LM3S2608"},
- {0xE1,"LM3S2601"},
- {0xE2,"LM3S2918"},
- {0xE3,"LM3S2911"},
- {0xE4,"LM3S6118"},
- {0xE5,"LM3S6111"},
- {0xE6,"LM3S6618"},
- {0xE7,"LM3S6611"},
- {0xE8,"LM3S6918"},
- {0xE9,"LM3S6911"},
+ {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"}
};
int printed, device_class;
struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
- stellaris_read_part_info(bank);
-
if (stellaris_info->did1 == 0)
- {
- printed = snprintf(buf, buf_size, "Cannot identify target as a Stellaris\n");
- buf += printed;
- buf_size -= printed;
- return ERROR_FLASH_OPERATION_FAILED;
- }
+ return ERROR_FLASH_BANK_NOT_PROBED;
+
+ /* Read main and master clock freqency register */
+ stellaris_read_clock_info(bank);
if (DID0_VER(stellaris_info->did0) > 0)
{
if (stellaris_info->num_lockbits > 0)
{
printed = snprintf(buf,
- buf_size,
- "pagesize: %" PRIi32 ", lockbits: %i 0x%4.4" PRIx32 ", pages in lock region: %i \n",
- stellaris_info->pagesize,
- stellaris_info->num_lockbits,
- stellaris_info->lockbits,
- (int)(stellaris_info->num_pages/stellaris_info->num_lockbits));
+ buf_size,
+ "pagesize: %" PRIi32 ", pages: %d, "
+ "lockbits: %i, pages per lockbit: %i\n",
+ stellaris_info->pagesize,
+ (unsigned) stellaris_info->num_pages,
+ stellaris_info->num_lockbits,
+ (unsigned) stellaris_info->pages_in_lockregion);
buf += printed;
buf_size -= printed;
}
* chip identification and status *
***************************************************************************/
-static uint32_t stellaris_get_flash_status(struct flash_bank *bank)
+/* Set the flash timimg register to match current clocking */
+static void stellaris_set_flash_timing(struct flash_bank *bank)
{
+ struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
struct target *target = bank->target;
- uint32_t fmc;
-
- target_read_u32(target, FLASH_CONTROL_BASE | FLASH_FMC, &fmc);
+ uint32_t usecrl = (stellaris_info->mck_freq/1000000ul-1);
- return fmc;
+ LOG_DEBUG("usecrl = %i",(int)(usecrl));
+ target_write_u32(target, SCB_BASE | USECRL, usecrl);
}
-/** Read clock configuration and set stellaris_info->usec_clocks*/
-
static const unsigned rcc_xtal[32] = {
[0x00] = 1000000, /* no pll */
[0x01] = 1843200, /* no pll */
[0x16] = 16384000,
};
+/** Read clock configuration and set stellaris_info->usec_clocks. */
static void stellaris_read_clock_info(struct flash_bank *bank)
{
struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
stellaris_info->mck_freq = mainfreq/(1 + sysdiv);
else
stellaris_info->mck_freq = mainfreq;
-
- /* Forget old flash timing */
- stellaris_set_flash_mode(bank, 0);
-}
-
-/* Setup the timimg registers */
-static void stellaris_set_flash_mode(struct flash_bank *bank,int mode)
-{
- struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
- struct target *target = bank->target;
-
- uint32_t usecrl = (stellaris_info->mck_freq/1000000ul-1);
- LOG_DEBUG("usecrl = %i",(int)(usecrl));
- target_write_u32(target, SCB_BASE | USECRL, usecrl);
-}
-
-#if 0
-static uint32_t stellaris_wait_status_busy(struct flash_bank *bank, uint32_t waitbits, int timeout)
-{
- uint32_t status;
-
- /* Stellaris waits for cmdbit to clear */
- while (((status = stellaris_get_flash_status(bank)) & waitbits) && (timeout-- > 0))
- {
- LOG_DEBUG("status: 0x%x", status);
- alive_sleep(1);
- }
-
- /* Flash errors are reflected in the FLASH_CRIS register */
-
- return status;
-}
-
-/* Send one command to the flash controller */
-static int stellaris_flash_command(struct flash_bank *bank,uint8_t cmd,uint16_t pagen)
-{
- uint32_t fmc;
- struct target *target = bank->target;
-
- fmc = FMC_WRKEY | cmd;
- target_write_u32(target, FLASH_CONTROL_BASE | FLASH_FMC, fmc);
- LOG_DEBUG("Flash command: 0x%x", fmc);
-
- if (stellaris_wait_status_busy(bank, cmd, 100))
- {
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- return ERROR_OK;
}
-#endif
/* Read device id register, main clock frequency register and fill in driver info structure */
static int stellaris_read_part_info(struct flash_bank *bank)
{
struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
struct target *target = bank->target;
- uint32_t did0, did1, ver, fam, status;
+ uint32_t did0, did1, ver, fam;
int i;
/* Read and parse chip identification register */
fam = (did1 >> 24) & 0xF;
if (((ver != 0) && (ver != 1)) || (fam != 0))
{
- LOG_WARNING("Unknown did1 version/family, cannot positively identify target as a Stellaris");
+ LOG_WARNING("Unknown did1 version/family.");
+ return ERROR_FLASH_OPERATION_FAILED;
}
/* For Sandstorm, Fury, DustDevil: current data sheets say IOSC
default:
LOG_WARNING("Unknown did0 class");
}
- default:
break;
+ default:
LOG_WARNING("Unknown did0 version");
+ break;
}
for (i = 0; StellarisParts[i].partno; i++)
{
- if (StellarisParts[i].partno == ((did1 >> 16) & 0xFF))
+ if (StellarisParts[i].partno == ((did1 >> 16) & 0xFFFF))
break;
}
stellaris_info->num_lockbits = 1 + (stellaris_info->dc0 & 0xFFFF);
stellaris_info->num_pages = 2 *(1 + (stellaris_info->dc0 & 0xFFFF));
stellaris_info->pagesize = 1024;
- bank->size = 1024 * stellaris_info->num_pages;
stellaris_info->pages_in_lockregion = 2;
- target_read_u32(target, SCB_BASE | FMPPE, &stellaris_info->lockbits);
- /* provide this for the benefit of the higher flash driver layers */
- bank->num_sectors = stellaris_info->num_pages;
- bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
- for (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;
- bank->sectors[i].is_protected = -1;
- }
-
- /* Read main and master clock freqency register */
- stellaris_read_clock_info(bank);
-
- status = stellaris_get_flash_status(bank);
+ /* REVISIT for at least Tempest parts, read NVMSTAT.FWB too.
+ * That exposes a 32-word Flash Write Buffer ... enabling
+ * writes of more than one word at a time.
+ */
return ERROR_OK;
}
static int stellaris_protect_check(struct flash_bank *bank)
{
- uint32_t status;
+ struct stellaris_flash_bank *stellaris = bank->driver_priv;
+ int status = ERROR_OK;
+ unsigned i;
+ unsigned page;
- struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
-
- if (bank->target->state != TARGET_HALTED)
- {
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
- }
+ if (stellaris->did1 == 0)
+ return ERROR_FLASH_BANK_NOT_PROBED;
- if (stellaris_info->did1 == 0)
- {
- stellaris_read_part_info(bank);
- }
+ for (i = 0; i < (unsigned) bank->num_sectors; i++)
+ bank->sectors[i].is_protected = -1;
- if (stellaris_info->did1 == 0)
- {
- LOG_WARNING("Cannot identify target as Stellaris");
- return ERROR_FLASH_OPERATION_FAILED;
+ /* Read each Flash Memory Protection Program Enable (FMPPE) register
+ * to report any pages that we can't write. Ignore the Read Enable
+ * register (FMPRE).
+ */
+ for (i = 0, page = 0;
+ i < DIV_ROUND_UP(stellaris->num_lockbits, 32u);
+ i++) {
+ uint32_t lockbits;
+
+ status = target_read_u32(bank->target,
+ SCB_BASE + (i ? (FMPPE0 + 4 * i) : FMPPE),
+ &lockbits);
+ LOG_DEBUG("FMPPE%d = %#8.8x (status %d)", i,
+ (unsigned) lockbits, status);
+ if (status != ERROR_OK)
+ goto done;
+
+ for (unsigned j = 0; j < 32; j++) {
+ unsigned k;
+
+ for (k = 0; k < stellaris->pages_in_lockregion; k++) {
+ if (page >= (unsigned) bank->num_sectors)
+ goto done;
+ bank->sectors[page++].is_protected =
+ !(lockbits & (1 << j));
+ }
+ }
}
- status = stellaris_get_flash_status(bank);
- stellaris_info->lockbits = status >> 16;
-
- return ERROR_OK;
+done:
+ return status;
}
static int stellaris_erase(struct flash_bank *bank, int first, int last)
}
if (stellaris_info->did1 == 0)
- {
- stellaris_read_part_info(bank);
- }
-
- if (stellaris_info->did1 == 0)
- {
- LOG_WARNING("Cannot identify target as Stellaris");
- return ERROR_FLASH_OPERATION_FAILED;
- }
+ return ERROR_FLASH_BANK_NOT_PROBED;
if ((first < 0) || (last < first) || (last >= (int)stellaris_info->num_pages))
{
return stellaris_mass_erase(bank);
}
- /* Configure the flash controller timing */
+ /* Refresh flash controller timing */
stellaris_read_clock_info(bank);
- stellaris_set_flash_mode(bank,0);
+ stellaris_set_flash_timing(bank);
/* Clear and disable flash programming interrupts */
target_write_u32(target, FLASH_CIM, 0);
target_write_u32(target, FLASH_MISC, PMISC | AMISC);
+ /* REVISIT this clobbers state set by any halted firmware ...
+ * it might want to process those IRQs.
+ */
+
for (banknr = first; banknr <= last; banknr++)
{
/* Address is first word in page */
return ERROR_TARGET_NOT_HALTED;
}
- if ((first < 0) || (last < first) || (last >= stellaris_info->num_lockbits))
+ if (!set)
{
- return ERROR_FLASH_SECTOR_INVALID;
+ LOG_ERROR("Can't unprotect write-protected pages.");
+ /* except by the "recover locked device" procedure ... */
+ return ERROR_INVALID_ARGUMENTS;
}
if (stellaris_info->did1 == 0)
+ return ERROR_FLASH_BANK_NOT_PROBED;
+
+ /* lockregions are 2 pages ... must protect [even..odd] */
+ if ((first < 0) || (first & 1)
+ || (last < first) || !(last & 1)
+ || (last >= 2 * stellaris_info->num_lockbits))
{
- stellaris_read_part_info(bank);
+ LOG_ERROR("Can't protect unaligned or out-of-range sectors.");
+ return ERROR_FLASH_SECTOR_INVALID;
}
- if (stellaris_info->did1 == 0)
- {
- LOG_WARNING("Cannot identify target as an Stellaris MCU");
+ /* Refresh flash controller timing */
+ stellaris_read_clock_info(bank);
+ stellaris_set_flash_timing(bank);
+
+ /* convert from pages to lockregions */
+ first /= 2;
+ last /= 2;
+
+ /* FIXME this assumes single FMPPE, for a max of 64K of flash!!
+ * Current parts can be much bigger.
+ */
+ if (last >= 32) {
+ LOG_ERROR("No support yet for protection > 64K");
return ERROR_FLASH_OPERATION_FAILED;
}
- /* Configure the flash controller timing */
- stellaris_read_clock_info(bank);
- stellaris_set_flash_mode(bank, 0);
+ target_read_u32(target, SCB_BASE | FMPPE, &fmppe);
- fmppe = stellaris_info->lockbits;
for (lockregion = first; lockregion <= last; lockregion++)
- {
- if (set)
- fmppe &= ~(1 << lockregion);
- else
- fmppe |= (1 << lockregion);
- }
+ fmppe &= ~(1 << lockregion);
/* Clear and disable flash programming interrupts */
target_write_u32(target, FLASH_CIM, 0);
target_write_u32(target, FLASH_MISC, PMISC | AMISC);
+ /* REVISIT this clobbers state set by any halted firmware ...
+ * it might want to process those IRQs.
+ */
+
LOG_DEBUG("fmppe 0x%" PRIx32 "",fmppe);
target_write_u32(target, SCB_BASE | FMPPE, fmppe);
+
/* Commit FMPPE */
target_write_u32(target, FLASH_FMA, 1);
+
/* Write commit command */
- /* TODO safety check, sice this cannot be undone */
+ /* REVISIT safety check, since this cannot be undone
+ * except by the "Recover a locked device" procedure.
+ * 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 !");
/* target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_COMT); */
+
/* Wait until erase complete */
do
{
return ERROR_FLASH_OPERATION_FAILED;
}
- target_read_u32(target, SCB_BASE | FMPPE, &stellaris_info->lockbits);
-
return ERROR_OK;
}
-static uint8_t stellaris_write_code[] =
+static const uint8_t stellaris_write_code[] =
{
/*
Call with :
/* pFLASH_CTRL_BASE: */
0x00,0xD0,0x0F,0x40, /* .word 0x400FD000 */
/* FLASHWRITECMD: */
- 0x01,0x00,0x42,0xA4 /* .word 0xA4420001 */
+ 0x01,0x00,0x42,0xA4 /* .word 0xA4420001 */
};
-static int stellaris_write_block(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t wcount)
+static int stellaris_write_block(struct flash_bank *bank,
+ uint8_t *buffer, uint32_t offset, uint32_t wcount)
{
struct target *target = bank->target;
uint32_t buffer_size = 8192;
struct armv7m_algorithm armv7m_info;
int retval = ERROR_OK;
+ /* power of two, and multiple of word size */
+ static const unsigned buf_min = 32;
+
+ /* for small buffers it's faster not to download an algorithm */
+ if (wcount < buf_min)
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+
LOG_DEBUG("(bank=%p buffer=%p offset=%08" PRIx32 " wcount=%08" PRIx32 "",
bank, buffer, offset, wcount);
/* flash write code */
if (target_alloc_working_area(target, sizeof(stellaris_write_code), &write_algorithm) != ERROR_OK)
{
- LOG_WARNING("no working area available, can't do block memory writes");
+ LOG_DEBUG("no working area for block memory writes");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
};
- target_write_buffer(target, write_algorithm->address, sizeof(stellaris_write_code), stellaris_write_code);
+ /* plus a buffer big enough for this data */
+ if (wcount < buffer_size) {
+ buffer_size = wcount;
+ buffer_size += buf_min - 1;
+ buffer_size &= ~(buf_min - 1);
+ }
/* memory buffer */
while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)
{
- LOG_DEBUG("called target_alloc_working_area(target=%p buffer_size=%08" PRIx32 " source=%p)",
- target, buffer_size, source);
buffer_size /= 2;
- if (buffer_size <= 256)
+ if (buffer_size <= buf_min)
{
- /* if we already allocated the writing code, but failed to get a buffer, free the algorithm */
- if (write_algorithm)
- target_free_working_area(target, write_algorithm);
-
- LOG_WARNING("no large enough working area available, can't do block memory writes");
+ target_free_working_area(target, write_algorithm);
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
+ LOG_DEBUG("retry target_alloc_working_area(%s, size=%u)",
+ target_name(target), (unsigned) buffer_size);
};
+ retval = target_write_buffer(target, write_algorithm->address,
+ sizeof(stellaris_write_code),
+ (uint8_t *) stellaris_write_code);
+
armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
armv7m_info.core_mode = ARMV7M_MODE_ANY;
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_INFO("Algorithm flash write %" PRIi32 " words to 0x%" PRIx32 ", %" PRIi32 " remaining", thisrun_count, address, (wcount - thisrun_count));
- LOG_DEBUG("Algorithm flash write %" PRIi32 " words to 0x%" PRIx32 ", %" PRIi32 " remaining", thisrun_count, address, (wcount - thisrun_count));
- if ((retval = target_run_algorithm(target, 0, NULL, 3, reg_params, write_algorithm->address, write_algorithm->address + sizeof(stellaris_write_code)-10, 10000, &armv7m_info)) != ERROR_OK)
+ 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 executing stellaris flash write algorithm");
+ LOG_ERROR("error %d executing stellaris "
+ "flash write algorithm",
+ retval);
retval = ERROR_FLASH_OPERATION_FAILED;
break;
}
wcount -= thisrun_count;
}
+ /* REVISIT we could speed up writing multi-section images by
+ * not freeing the initialized write_algorithm this way.
+ */
+
target_free_working_area(target, write_algorithm);
target_free_working_area(target, source);
bank, buffer, offset, count);
if (stellaris_info->did1 == 0)
- {
- stellaris_read_part_info(bank);
- }
-
- if (stellaris_info->did1 == 0)
- {
- LOG_WARNING("Cannot identify target as a Stellaris processor");
- return ERROR_FLASH_OPERATION_FAILED;
- }
+ return ERROR_FLASH_BANK_NOT_PROBED;
if (offset & 0x3)
{
if (offset + count > bank->size)
return ERROR_FLASH_DST_OUT_OF_BANK;
- /* Configure the flash controller timing */
+ /* Refresh flash controller timing */
stellaris_read_clock_info(bank);
- stellaris_set_flash_mode(bank, 0);
+ stellaris_set_flash_timing(bank);
/* Clear and disable flash programming interrupts */
target_write_u32(target, FLASH_CIM, 0);
target_write_u32(target, FLASH_MISC, PMISC | AMISC);
+ /* REVISIT this clobbers state set by any halted firmware ...
+ * it might want to process those IRQs.
+ */
+
/* multiple words to be programmed? */
if (words_remaining > 0)
{
/* try using a block write */
- if ((retval = stellaris_write_block(bank, buffer, offset, words_remaining)) != ERROR_OK)
+ retval = stellaris_write_block(bank, buffer, offset,
+ words_remaining);
+ if (retval != ERROR_OK)
{
if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
{
- /* if block write failed (no sufficient working area),
- * we use normal (slow) single dword accesses */
- LOG_WARNING("couldn't use block writes, falling back to single memory accesses");
+ LOG_DEBUG("writing flash word-at-a-time");
}
else if (retval == ERROR_FLASH_OPERATION_FAILED)
{
static int stellaris_probe(struct flash_bank *bank)
{
- /* we can't probe on an stellaris
- * if this is an stellaris, it has the configured flash
+ struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
+ int retval;
+
+ /* If this is a stellaris chip, it has flash; probe() is just
+ * to figure out how much is present. Only do it once.
*/
+ if (stellaris_info->did1 != 0)
+ return ERROR_OK;
- if (bank->target->state != TARGET_HALTED)
+ /* stellaris_read_part_info() already handled error checking and
+ * reporting. Note that it doesn't write, so we don't care about
+ * whether the target is halted or not.
+ */
+ retval = stellaris_read_part_info(bank);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* provide this for the benefit of the NOR flash framework */
+ bank->size = 1024 * stellaris_info->num_pages;
+ 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++)
{
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
+ bank->sectors[i].offset = i * stellaris_info->pagesize;
+ bank->sectors[i].size = stellaris_info->pagesize;
+ bank->sectors[i].is_erased = -1;
+ bank->sectors[i].is_protected = -1;
}
- /* stellaris_read_part_info() already takes care about error checking and reporting */
- return stellaris_read_part_info(bank);
-}
-
-static int stellaris_auto_probe(struct flash_bank *bank)
-{
- struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
- if (stellaris_info->did1)
- return ERROR_OK;
- return stellaris_probe(bank);
+ return retval;
}
static int stellaris_mass_erase(struct flash_bank *bank)
}
if (stellaris_info->did1 == 0)
- {
- stellaris_read_part_info(bank);
- }
-
- if (stellaris_info->did1 == 0)
- {
- LOG_WARNING("Cannot identify target as Stellaris");
- return ERROR_FLASH_OPERATION_FAILED;
- }
+ return ERROR_FLASH_BANK_NOT_PROBED;
- /* Configure the flash controller timing */
+ /* Refresh flash controller timing */
stellaris_read_clock_info(bank);
- stellaris_set_flash_mode(bank, 0);
+ stellaris_set_flash_timing(bank);
/* Clear and disable flash programming interrupts */
target_write_u32(target, FLASH_CIM, 0);
target_write_u32(target, FLASH_MISC, PMISC | AMISC);
+ /* REVISIT this clobbers state set by any halted firmware ...
+ * it might want to process those IRQs.
+ */
+
target_write_u32(target, FLASH_FMA, 0);
target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_MERASE);
/* Wait until erase complete */
};
struct flash_driver stellaris_flash = {
- .name = "stellaris",
- .commands = stellaris_command_handlers,
- .flash_bank_command = &stellaris_flash_bank_command,
- .erase = &stellaris_erase,
- .protect = &stellaris_protect,
- .write = &stellaris_write,
- .probe = &stellaris_probe,
- .auto_probe = &stellaris_auto_probe,
- .erase_check = &default_flash_mem_blank_check,
- .protect_check = &stellaris_protect_check,
- .info = &stellaris_info,
- };
+ .name = "stellaris",
+ .commands = stellaris_command_handlers,
+ .flash_bank_command = stellaris_flash_bank_command,
+ .erase = stellaris_erase,
+ .protect = stellaris_protect,
+ .write = stellaris_write,
+ .probe = stellaris_probe,
+ .auto_probe = stellaris_probe,
+ .erase_check = default_flash_mem_blank_check,
+ .protect_check = stellaris_protect_check,
+ .info = stellaris_info,
+};
Code Review / openocd.git / blobdiff