* Copyright (C) 2006 by Magnus Lundin *
* lundin@mlu.mine.nu *
* *
+ * Copyright (C) 2008 by Spencer Oliver *
+ * spen@spen-soft.co.uk *
+ * *
* 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 *
* the Free Software Foundation; either version 2 of the License, or *
***************************************************************************/
/***************************************************************************
-* STELLARIS is tested on LM3S811
+* STELLARIS is tested on LM3S811, LM3S6965
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include "replacements.h"
-
#include "stellaris.h"
-#include "cortex_m3.h"
-
-#include "flash.h"
-#include "target.h"
-#include "log.h"
+#include "armv7m.h"
#include "binarybuffer.h"
-#include "types.h"
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
#define DID0_VER(did0) ((did0>>28)&0x07)
-int stellaris_register_commands(struct command_context_s *cmd_ctx);
-int stellaris_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
-int stellaris_erase(struct flash_bank_s *bank, int first, int last);
-int stellaris_protect(struct flash_bank_s *bank, int set, int first, int last);
-int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
-int stellaris_auto_probe(struct flash_bank_s *bank);
-int stellaris_probe(struct flash_bank_s *bank);
-int stellaris_erase_check(struct flash_bank_s *bank);
-int stellaris_protect_check(struct flash_bank_s *bank);
-int stellaris_info(struct flash_bank_s *bank, char *buf, int buf_size);
-
-int stellaris_read_part_info(struct flash_bank_s *bank);
-u32 stellaris_get_flash_status(flash_bank_t *bank);
-void stellaris_set_flash_mode(flash_bank_t *bank,int mode);
-u32 stellaris_wait_status_busy(flash_bank_t *bank, u32 waitbits, int timeout);
-
-int stellaris_read_part_info(struct flash_bank_s *bank);
+static int stellaris_register_commands(struct command_context_s *cmd_ctx);
+static int stellaris_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
+static int stellaris_erase(struct flash_bank_s *bank, int first, int last);
+static int stellaris_protect(struct flash_bank_s *bank, int set, int first, int last);
+static int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
+static int stellaris_auto_probe(struct flash_bank_s *bank);
+static int stellaris_probe(struct flash_bank_s *bank);
+static int stellaris_protect_check(struct flash_bank_s *bank);
+static int stellaris_info(struct flash_bank_s *bank, char *buf, int buf_size);
+
+static int stellaris_read_part_info(struct flash_bank_s *bank);
+static u32 stellaris_get_flash_status(flash_bank_t *bank);
+static void stellaris_set_flash_mode(flash_bank_t *bank,int mode);
+//static u32 stellaris_wait_status_busy(flash_bank_t *bank, u32 waitbits, int timeout);
+
+static int stellaris_handle_mass_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int stellaris_mass_erase(struct flash_bank_s *bank);
flash_driver_t stellaris_flash =
{
.write = stellaris_write,
.probe = stellaris_probe,
.auto_probe = stellaris_auto_probe,
- .erase_check = stellaris_erase_check,
+ .erase_check = default_flash_mem_blank_check,
.protect_check = stellaris_protect_check,
.info = stellaris_info
};
-struct {
+static struct {
u32 partno;
char *partname;
} StellarisParts[] =
{0,"Unknown part"}
};
-char * StellarisClassname[5] =
+static char * StellarisClassname[5] =
{
"Sandstorm",
"Fury",
/* flash_bank stellaris <base> <size> 0 0 <target#>
*/
-int stellaris_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
+static int stellaris_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
{
stellaris_flash_bank_t *stellaris_info;
-
+
if (argc < 6)
{
LOG_WARNING("incomplete flash_bank stellaris configuration");
return ERROR_FLASH_BANK_INVALID;
}
-
- stellaris_info = calloc(sizeof(stellaris_flash_bank_t),1);
+
+ stellaris_info = calloc(sizeof(stellaris_flash_bank_t), 1);
bank->base = 0x0;
bank->driver_priv = stellaris_info;
-
+
stellaris_info->target_name = "Unknown target";
-
+
/* part wasn't probed for info yet */
stellaris_info->did1 = 0;
-
- /* TODO Use an optional main oscillator clock rate in kHz from arg[6] */
+
+ /* TODO Use an optional main oscillator clock rate in kHz from arg[6] */
return ERROR_OK;
}
-int stellaris_register_commands(struct command_context_s *cmd_ctx)
+static int stellaris_register_commands(struct command_context_s *cmd_ctx)
{
-/*
- command_t *stellaris_cmd = register_command(cmd_ctx, NULL, "stellaris", NULL, COMMAND_ANY, NULL);
- register_command(cmd_ctx, stellaris_cmd, "gpnvm", stellaris_handle_gpnvm_command, COMMAND_EXEC,
- "stellaris gpnvm <num> <bit> set|clear, set or clear stellaris gpnvm bit");
-*/
+ command_t *stm32x_cmd = register_command(cmd_ctx, NULL, "stellaris", NULL, COMMAND_ANY, "stellaris flash specific commands");
+
+ register_command(cmd_ctx, stm32x_cmd, "mass_erase", stellaris_handle_mass_erase_command, COMMAND_EXEC, "mass erase device");
return ERROR_OK;
}
-int stellaris_info(struct flash_bank_s *bank, char *buf, int buf_size)
+static int stellaris_info(struct flash_bank_s *bank, char *buf, int buf_size)
{
int printed, device_class;
stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
-
+
stellaris_read_part_info(bank);
if (stellaris_info->did1 == 0)
buf_size -= printed;
return ERROR_FLASH_OPERATION_FAILED;
}
-
- if (DID0_VER(stellaris_info->did0)>0)
+
+ if (DID0_VER(stellaris_info->did0) > 0)
{
- device_class = (stellaris_info->did0>>16)&0xFF;
+ device_class = (stellaris_info->did0>>16) & 0xFF;
}
else
{
device_class = 0;
- }
+ }
printed = snprintf(buf, buf_size, "\nLMI Stellaris information: Chip is class %i(%s) %s v%c.%i\n",
device_class, StellarisClassname[device_class], stellaris_info->target_name,
- 'A' + ((stellaris_info->did0>>8)&0xFF), (stellaris_info->did0)&0xFF);
+ 'A' + ((stellaris_info->did0>>8) & 0xFF), (stellaris_info->did0) & 0xFF);
buf += printed;
buf_size -= printed;
- printed = snprintf(buf, buf_size, "did1: 0x%8.8x, arch: 0x%4.4x, eproc: %s, ramsize:%ik, flashsize: %ik\n",
- stellaris_info->did1, stellaris_info->did1, "ARMV7M", (1+((stellaris_info->dc0>>16)&0xFFFF))/4, (1+(stellaris_info->dc0&0xFFFF))*2);
+ printed = snprintf(buf, buf_size, "did1: 0x%8.8x, arch: 0x%4.4x, eproc: %s, ramsize:%ik, flashsize: %ik\n",
+ stellaris_info->did1, stellaris_info->did1, "ARMV7M", (1+((stellaris_info->dc0>>16) & 0xFFFF))/4, (1+(stellaris_info->dc0 & 0xFFFF))*2);
buf += printed;
buf_size -= printed;
- printed = snprintf(buf, buf_size, "master clock(estimated): %ikHz, rcc is 0x%x \n", stellaris_info->mck_freq / 1000, stellaris_info->rcc);
+ printed = snprintf(buf, buf_size, "master clock(estimated): %ikHz, rcc is 0x%x \n", stellaris_info->mck_freq / 1000, stellaris_info->rcc);
buf += printed;
buf_size -= printed;
- if (stellaris_info->num_lockbits>0) {
+ if (stellaris_info->num_lockbits>0)
+ {
printed = snprintf(buf, buf_size, "pagesize: %i, lockbits: %i 0x%4.4x, pages in lock region: %i \n", stellaris_info->pagesize, stellaris_info->num_lockbits, stellaris_info->lockbits,stellaris_info->num_pages/stellaris_info->num_lockbits);
buf += printed;
buf_size -= printed;
* chip identification and status *
***************************************************************************/
-u32 stellaris_get_flash_status(flash_bank_t *bank)
+static u32 stellaris_get_flash_status(flash_bank_t *bank)
{
target_t *target = bank->target;
u32 fmc;
-
+
target_read_u32(target, FLASH_CONTROL_BASE|FLASH_FMC, &fmc);
-
+
return fmc;
}
/** Read clock configuration and set stellaris_info->usec_clocks*/
-
-void stellaris_read_clock_info(flash_bank_t *bank)
+
+static void stellaris_read_clock_info(flash_bank_t *bank)
{
stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
target_t *target = bank->target;
unsigned long mainfreq;
target_read_u32(target, SCB_BASE|RCC, &rcc);
- LOG_DEBUG("Stellaris RCC %x",rcc);
+ LOG_DEBUG("Stellaris RCC %x", rcc);
target_read_u32(target, SCB_BASE|PLLCFG, &pllcfg);
- LOG_DEBUG("Stellaris PLLCFG %x",pllcfg);
+ LOG_DEBUG("Stellaris PLLCFG %x", pllcfg);
stellaris_info->rcc = rcc;
-
- sysdiv = (rcc>>23)&0xF;
- usesysdiv = (rcc>>22)&0x1;
- bypass = (rcc>>11)&0x1;
- oscsrc = (rcc>>4)&0x3;
+
+ sysdiv = (rcc>>23) & 0xF;
+ usesysdiv = (rcc>>22) & 0x1;
+ bypass = (rcc>>11) & 0x1;
+ oscsrc = (rcc>>4) & 0x3;
/* xtal = (rcc>>6)&0xF; */
switch (oscsrc)
{
mainfreq = 0;
break;
}
-
+
if (!bypass)
mainfreq = 200000000; /* PLL out frec */
-
+
if (usesysdiv)
stellaris_info->mck_freq = mainfreq/(1+sysdiv);
else
stellaris_info->mck_freq = mainfreq;
-
+
/* Forget old flash timing */
- stellaris_set_flash_mode(bank,0);
+ stellaris_set_flash_mode(bank, 0);
}
/* Setup the timimg registers */
-void stellaris_set_flash_mode(flash_bank_t *bank,int mode)
+static void stellaris_set_flash_mode(flash_bank_t *bank,int mode)
{
stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
target_t *target = bank->target;
u32 usecrl = (stellaris_info->mck_freq/1000000ul-1);
- LOG_DEBUG("usecrl = %i",usecrl);
- target_write_u32(target, SCB_BASE|USECRL , usecrl);
-
+ LOG_DEBUG("usecrl = %i",usecrl);
+ target_write_u32(target, SCB_BASE|USECRL, usecrl);
}
-u32 stellaris_wait_status_busy(flash_bank_t *bank, u32 waitbits, int timeout)
+#if 0
+static u32 stellaris_wait_status_busy(flash_bank_t *bank, u32 waitbits, int timeout)
{
u32 status;
-
+
/* Stellaris waits for cmdbit to clear */
while (((status = stellaris_get_flash_status(bank)) & waitbits) && (timeout-- > 0))
{
LOG_DEBUG("status: 0x%x", status);
- usleep(1000);
+ alive_sleep(1);
}
-
+
/* Flash errors are reflected in the FLASH_CRIS register */
return status;
}
/* Send one command to the flash controller */
-int stellaris_flash_command(struct flash_bank_s *bank,u8 cmd,u16 pagen)
+static int stellaris_flash_command(struct flash_bank_s *bank,u8 cmd,u16 pagen)
{
u32 fmc;
target_t *target = bank->target;
- fmc = FMC_WRKEY | cmd;
+ 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))
+ 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 */
-int stellaris_read_part_info(struct flash_bank_s *bank)
+static int stellaris_read_part_info(struct flash_bank_s *bank)
{
stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
target_t *target = bank->target;
- u32 did0,did1, ver, fam, status;
+ u32 did0, did1, ver, fam, status;
int i;
-
+
/* Read and parse chip identification register */
target_read_u32(target, SCB_BASE|DID0, &did0);
target_read_u32(target, SCB_BASE|DID1, &did1);
target_read_u32(target, SCB_BASE|DC0, &stellaris_info->dc0);
target_read_u32(target, SCB_BASE|DC1, &stellaris_info->dc1);
- LOG_DEBUG("did0 0x%x, did1 0x%x, dc0 0x%x, dc1 0x%x",did0, did1, stellaris_info->dc0,stellaris_info->dc1);
+ LOG_DEBUG("did0 0x%x, did1 0x%x, dc0 0x%x, dc1 0x%x", did0, did1, stellaris_info->dc0, stellaris_info->dc1);
ver = did0 >> 28;
if((ver != 0) && (ver != 1))
LOG_WARNING("Unknown did1 version/family, cannot positively identify target as a Stellaris");
}
- for (i=0;StellarisParts[i].partno;i++)
+ for (i = 0; StellarisParts[i].partno; i++)
{
- if (StellarisParts[i].partno==((did1>>16)&0xFF))
+ if (StellarisParts[i].partno == ((did1 >> 16) & 0xFF))
break;
}
-
+
stellaris_info->target_name = StellarisParts[i].partname;
-
+
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->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;
+ bank->size = 1024 * stellaris_info->num_pages;
stellaris_info->pages_in_lockregion = 2;
target_read_u32(target, SCB_BASE|FMPPE, &stellaris_info->lockbits);
bank->sectors = malloc(sizeof(flash_sector_t) * bank->num_sectors);
for (i = 0; i < bank->num_sectors; i++)
{
- bank->sectors[i].offset = i*stellaris_info->pagesize;
+ 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);
-
+
return ERROR_OK;
}
* flash operations *
***************************************************************************/
-int stellaris_erase_check(struct flash_bank_s *bank)
-{
- /*
-
- stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
- target_t *target = bank->target;
- int i;
-
- */
-
- return ERROR_OK;
-}
-
-int stellaris_protect_check(struct flash_bank_s *bank)
+static int stellaris_protect_check(struct flash_bank_s *bank)
{
u32 status;
-
+
stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
if (bank->target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
LOG_WARNING("Cannot identify target as an AT91SAM");
return ERROR_FLASH_OPERATION_FAILED;
}
-
+
status = stellaris_get_flash_status(bank);
stellaris_info->lockbits = status >> 16;
-
+
return ERROR_OK;
}
-int stellaris_erase(struct flash_bank_s *bank, int first, int last)
+static int stellaris_erase(struct flash_bank_s *bank, int first, int last)
{
int banknr;
u32 flash_fmc, flash_cris;
stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
target_t *target = bank->target;
-
+
if (bank->target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
{
LOG_WARNING("Cannot identify target as Stellaris");
return ERROR_FLASH_OPERATION_FAILED;
- }
-
- if ((first < 0) || (last < first) || (last >= stellaris_info->num_pages))
+ }
+
+ 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);
+ }
+
/* Configure the flash controller timing */
- stellaris_read_clock_info(bank);
+ stellaris_read_clock_info(bank);
stellaris_set_flash_mode(bank,0);
/* Clear and disable flash programming interrupts */
target_write_u32(target, FLASH_CIM, 0);
target_write_u32(target, FLASH_MISC, PMISC|AMISC);
- if ((first == 0) && (last == (stellaris_info->num_pages-1)))
- {
- target_write_u32(target, FLASH_FMA, 0);
- target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_MERASE);
- /* Wait until erase complete */
- do
- {
- target_read_u32(target, FLASH_FMC, &flash_fmc);
- }
- while(flash_fmc & FMC_MERASE);
-
- /* if device has > 128k, then second erase cycle is needed */
- 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
- {
- target_read_u32(target, FLASH_FMC, &flash_fmc);
- }
- while(flash_fmc & FMC_MERASE);
- }
-
- return ERROR_OK;
- }
-
- 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);
+ 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 */
target_write_u32(target, FLASH_CRIS, 0);
return ERROR_FLASH_OPERATION_FAILED;
}
-
+
bank->sectors[banknr].is_erased = 1;
}
return ERROR_OK;
}
-int stellaris_protect(struct flash_bank_s *bank, int set, int first, int last)
+static int stellaris_protect(struct flash_bank_s *bank, int set, int first, int last)
{
u32 fmppe, flash_fmc, flash_cris;
int lockregion;
-
+
stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
target_t *target = bank->target;
-
+
if (bank->target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
-
+
if ((first < 0) || (last < first) || (last >= stellaris_info->num_lockbits))
{
return ERROR_FLASH_SECTOR_INVALID;
}
-
+
if (stellaris_info->did1 == 0)
{
stellaris_read_part_info(bank);
LOG_WARNING("Cannot identify target as an Stellaris MCU");
return ERROR_FLASH_OPERATION_FAILED;
}
-
+
/* Configure the flash controller timing */
stellaris_read_clock_info(bank);
- stellaris_set_flash_mode(bank,0);
+ stellaris_set_flash_mode(bank, 0);
fmppe = stellaris_info->lockbits;
- for (lockregion=first;lockregion<=last;lockregion++)
+ for (lockregion = first; lockregion <= last; lockregion++)
{
if (set)
- fmppe &= ~(1<<lockregion);
+ 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);
-
+
LOG_DEBUG("fmppe 0x%x",fmppe);
target_write_u32(target, SCB_BASE|FMPPE, fmppe);
/* Commit FMPPE */
target_write_u32(target, FLASH_CRIS, 0);
return ERROR_FLASH_OPERATION_FAILED;
}
-
+
target_read_u32(target, SCB_BASE|FMPPE, &stellaris_info->lockbits);
-
+
return ERROR_OK;
}
-u8 stellaris_write_code[] =
+static u8 stellaris_write_code[] =
{
-/*
- Call with :
+/*
+ Call with :
r0 = buffer address
r1 = destination address
- r2 = bytecount (in) - endaddr (work)
-
- Used registers:
+ r2 = bytecount (in) - endaddr (work)
+
+ Used registers:
r3 = pFLASH_CTRL_BASE
r4 = FLASHWRITECMD
r5 = #1
0x01,0x00,0x42,0xA4 /* .word 0xA4420001 */
};
-int stellaris_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 wcount)
+static int stellaris_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 wcount)
{
target_t *target = bank->target;
u32 buffer_size = 8192;
working_area_t *source;
working_area_t *write_algorithm;
u32 address = bank->base + offset;
- reg_param_t reg_params[8];
+ reg_param_t reg_params[3];
armv7m_algorithm_t armv7m_info;
- int retval;
-
+ int retval = ERROR_OK;
+
LOG_DEBUG("(bank=%p buffer=%p offset=%08X wcount=%08X)",
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");
- return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
- };
+ {
+ LOG_WARNING("no working area available, can't do block memory writes");
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ };
target_write_buffer(target, write_algorithm->address, sizeof(stellaris_write_code), stellaris_write_code);
while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)
{
LOG_DEBUG("called target_alloc_working_area(target=%p buffer_size=%08X source=%p)",
- target, buffer_size, source);
+ target, buffer_size, source);
buffer_size /= 2;
if (buffer_size <= 256)
{
/* 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");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
};
-
+
armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
armv7m_info.core_mode = ARMV7M_MODE_ANY;
-
+
init_reg_param(®_params[0], "r0", 32, PARAM_OUT);
init_reg_param(®_params[1], "r1", 32, PARAM_OUT);
init_reg_param(®_params[2], "r2", 32, PARAM_OUT);
- init_reg_param(®_params[3], "r3", 32, PARAM_OUT);
- init_reg_param(®_params[4], "r4", 32, PARAM_OUT);
- init_reg_param(®_params[5], "r5", 32, PARAM_OUT);
- init_reg_param(®_params[6], "r6", 32, PARAM_OUT);
- init_reg_param(®_params[7], "r7", 32, PARAM_OUT);
while (wcount > 0)
{
u32 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_WARNING("Algorithm flash write %i words to 0x%x, %i remaining",thisrun_count,address, wcount);
- LOG_DEBUG("Algorithm flash write %i words to 0x%x, %i remaining",thisrun_count,address, wcount);
- if ((retval = target->type->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_INFO("Algorithm flash write %i words to 0x%x, %i remaining", thisrun_count, address, wcount);
+ LOG_DEBUG("Algorithm flash write %i words to 0x%x, %i remaining", thisrun_count, address, wcount);
+ 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_ERROR("error executing stellaris flash write algorithm");
- target_free_working_area(target, source);
- destroy_reg_param(®_params[0]);
- destroy_reg_param(®_params[1]);
- destroy_reg_param(®_params[2]);
- return ERROR_FLASH_OPERATION_FAILED;
+ retval = ERROR_FLASH_OPERATION_FAILED;
+ break;
}
-
+
buffer += thisrun_count * 4;
address += thisrun_count * 4;
wcount -= thisrun_count;
}
-
target_free_working_area(target, write_algorithm);
target_free_working_area(target, source);
-
+
destroy_reg_param(®_params[0]);
destroy_reg_param(®_params[1]);
destroy_reg_param(®_params[2]);
- destroy_reg_param(®_params[3]);
- destroy_reg_param(®_params[4]);
- destroy_reg_param(®_params[5]);
- destroy_reg_param(®_params[6]);
- destroy_reg_param(®_params[7]);
-
- return ERROR_OK;
+
+ return retval;
}
-int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
+static int stellaris_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
{
stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
target_t *target = bank->target;
u32 address = offset;
- u32 flash_cris,flash_fmc;
- u32 retval;
-
+ u32 flash_cris, flash_fmc;
+ u32 words_remaining = (count / 4);
+ u32 bytes_remaining = (count & 0x00000003);
+ u32 bytes_written = 0;
+ int retval;
+
if (bank->target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
LOG_WARNING("Cannot identify target as a Stellaris processor");
return ERROR_FLASH_OPERATION_FAILED;
}
-
- if((offset & 3) || (count & 3))
+
+ if (offset & 0x3)
{
LOG_WARNING("offset size must be word aligned");
return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
}
-
+
if (offset + count > bank->size)
return ERROR_FLASH_DST_OUT_OF_BANK;
- /* Configure the flash controller timing */
- stellaris_read_clock_info(bank);
- stellaris_set_flash_mode(bank,0);
+ /* Configure the flash controller timing */
+ stellaris_read_clock_info(bank);
+ stellaris_set_flash_mode(bank, 0);
-
/* Clear and disable flash programming interrupts */
target_write_u32(target, FLASH_CIM, 0);
target_write_u32(target, FLASH_MISC, PMISC|AMISC);
/* multiple words to be programmed? */
- if (count > 0)
+ if (words_remaining > 0)
{
/* try using a block write */
- if ((retval = stellaris_write_block(bank, buffer, offset, count/4)) != ERROR_OK)
+ if ((retval = stellaris_write_block(bank, buffer, offset, words_remaining)) != ERROR_OK)
{
if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
{
/* if block write failed (no sufficient working area),
- * we use normal (slow) single dword accesses */
+ * we use normal (slow) single dword accesses */
LOG_WARNING("couldn't use block writes, falling back to single memory accesses");
}
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%x", flash_cris);
return ERROR_FLASH_OPERATION_FAILED;
}
}
else
{
- buffer += count * 4;
- address += count * 4;
- count = 0;
+ buffer += words_remaining * 4;
+ address += words_remaining * 4;
+ words_remaining = 0;
}
}
-
- while(count>0)
+
+ while (words_remaining > 0)
{
- if (!(address&0xff)) LOG_DEBUG("0x%x",address);
+ if (!(address & 0xff))
+ LOG_DEBUG("0x%x", address);
+
/* Program one word */
target_write_u32(target, FLASH_FMA, address);
target_write_buffer(target, FLASH_FMD, 4, buffer);
do
{
target_read_u32(target, FLASH_FMC, &flash_fmc);
- }
- while(flash_fmc & FMC_WRITE);
+ } while (flash_fmc & FMC_WRITE);
+
buffer += 4;
address += 4;
- count -= 4;
+ words_remaining--;
}
- /* Check acess violations */
+
+ if (bytes_remaining)
+ {
+ u8 last_word[4] = {0xff, 0xff, 0xff, 0xff};
+ int i = 0;
+
+ while(bytes_remaining > 0)
+ {
+ last_word[i++] = *(buffer + bytes_written);
+ bytes_remaining--;
+ bytes_written++;
+ }
+
+ if (!(address & 0xff))
+ LOG_DEBUG("0x%x", address);
+
+ /* Program one word */
+ target_write_u32(target, FLASH_FMA, address);
+ target_write_buffer(target, FLASH_FMD, 4, last_word);
+ 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
+ {
+ 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%x", flash_cris);
return ERROR_FLASH_OPERATION_FAILED;
return ERROR_OK;
}
-int stellaris_probe(struct flash_bank_s *bank)
+static int stellaris_probe(struct flash_bank_s *bank)
{
/* we can't probe on an stellaris
* if this is an stellaris, it has the configured flash
*/
-
+
if (bank->target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
return stellaris_read_part_info(bank);
}
-int stellaris_auto_probe(struct flash_bank_s *bank)
+static int stellaris_auto_probe(struct flash_bank_s *bank)
{
stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
if (stellaris_info->did1)
return ERROR_OK;
return stellaris_probe(bank);
}
+
+static int stellaris_mass_erase(struct flash_bank_s *bank)
+{
+ target_t *target = NULL;
+ stellaris_flash_bank_t *stellaris_info = NULL;
+ u32 flash_fmc;
+
+ stellaris_info = bank->driver_priv;
+ target = bank->target;
+
+ if (target->state != TARGET_HALTED)
+ {
+ LOG_ERROR("Target not halted");
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ 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;
+ }
+
+ /* Configure the flash controller timing */
+ stellaris_read_clock_info(bank);
+ stellaris_set_flash_mode(bank, 0);
+
+ /* Clear and disable flash programming interrupts */
+ target_write_u32(target, FLASH_CIM, 0);
+ target_write_u32(target, FLASH_MISC, PMISC|AMISC);
+
+ target_write_u32(target, FLASH_FMA, 0);
+ target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_MERASE);
+ /* Wait until erase complete */
+ do
+ {
+ target_read_u32(target, FLASH_FMC, &flash_fmc);
+ }
+ 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)
+ {
+ target_write_u32(target, FLASH_FMA, 0x20000);
+ target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_MERASE);
+ /* Wait until erase complete */
+ do
+ {
+ target_read_u32(target, FLASH_FMC, &flash_fmc);
+ }
+ while (flash_fmc & FMC_MERASE);
+ }
+
+ return ERROR_OK;
+}
+
+static int stellaris_handle_mass_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ flash_bank_t *bank;
+ int i;
+
+ if (argc < 1)
+ {
+ command_print(cmd_ctx, "stellaris mass_erase <bank>");
+ return ERROR_OK;
+ }
+
+ bank = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
+ if (!bank)
+ {
+ command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
+ return 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
+ {
+ command_print(cmd_ctx, "stellaris mass erase failed");
+ }
+
+ return ERROR_OK;
+}
projects / openocd / blobdiff