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-rw-r--r--src/flash/stellaris.c1870
1 files changed, 935 insertions, 935 deletions
diff --git a/src/flash/stellaris.c b/src/flash/stellaris.c
index 196730b2..d8bd14e0 100644
--- a/src/flash/stellaris.c
+++ b/src/flash/stellaris.c
@@ -1,935 +1,935 @@
-/***************************************************************************
- * Copyright (C) 2006 by Magnus Lundin *
- * lundin@mlu.mine.nu *
- * *
- * 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 *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
-
-/***************************************************************************
-* STELLARIS is tested on LM3S811
-*
-*
-*
- ***************************************************************************/
-#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 "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);
-
-flash_driver_t stellaris_flash =
-{
- .name = "stellaris",
- .register_commands = stellaris_register_commands,
- .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 = stellaris_erase_check,
- .protect_check = stellaris_protect_check,
- .info = stellaris_info
-};
-
-
-struct {
- u32 partno;
- char *partname;
-} StellarisParts[] =
-{
- {0x01,"LM3S101"},
- {0x02,"LM3S102"},
- {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"},
- {0x34,"LM3S815"},
- {0x36,"LM3S817"},
- {0x37,"LM3S818"},
- {0x35,"LM3S828"},
- {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"},
- {0x82,"LM3S6422"},
- {0x83,"LM3S6633"},
- {0x84,"LM3S2139"},
- {0x85,"LM3S2637"},
- {0x86,"LM3S8738"},
- {0x88,"LM3S8938"},
- {0x89,"LM3S6938"},
- {0x8B,"LM3S6637"},
- {0x8C,"LM3S8933"},
- {0x8D,"LM3S8733"},
- {0x8E,"LM3S8538"},
- {0x8F,"LM3S2948"},
- {0xA1,"LM3S6100"},
- {0xA2,"LM3S2410"},
- {0xA3,"LM3S6730"},
- {0xA4,"LM3S2730"},
- {0xA5,"LM3S6420"},
- {0xA6,"LM3S8962"},
- {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"},
- {0,"Unknown part"}
-};
-
-char * StellarisClassname[2] =
-{
- "Sandstorm",
- "Fury"
-};
-
-/***************************************************************************
-* openocd command interface *
-***************************************************************************/
-
-/* 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)
-{
- stellaris_flash_bank_t *stellaris_info;
-
- if (argc < 6)
- {
- WARNING("incomplete flash_bank stellaris configuration");
- return ERROR_FLASH_BANK_INVALID;
- }
-
- 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] */
- return ERROR_OK;
-}
-
-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");
-*/
- return ERROR_OK;
-}
-
-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)
- {
- printed = snprintf(buf, buf_size, "Cannot identify target as a Stellaris\n");
- buf += printed;
- buf_size -= printed;
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- if (DID0_VER(stellaris_info->did0)>0)
- {
- 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);
- 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);
- 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);
- buf += printed;
- buf_size -= printed;
-
- 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;
- }
- return ERROR_OK;
-}
-
-/***************************************************************************
-* chip identification and status *
-***************************************************************************/
-
-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)
-{
- stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
- target_t *target = bank->target;
- u32 rcc, pllcfg, sysdiv, usesysdiv, bypass, oscsrc;
- unsigned long mainfreq;
-
- target_read_u32(target, SCB_BASE|RCC, &rcc);
- DEBUG("Stellaris RCC %x",rcc);
- target_read_u32(target, SCB_BASE|PLLCFG, &pllcfg);
- 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;
- /* xtal = (rcc>>6)&0xF; */
- switch (oscsrc)
- {
- case 0:
- mainfreq = 6000000; /* Default xtal */
- break;
- case 1:
- mainfreq = 22500000; /* Internal osc. 15 MHz +- 50% */
- break;
- case 2:
- mainfreq = 5625000; /* Internal osc. / 4 */
- break;
- case 3:
- WARNING("Invalid oscsrc (3) in rcc register");
- mainfreq = 6000000;
- 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);
-}
-
-/* Setup the timimg registers */
-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);
- 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)
-{
- u32 status;
-
- /* Stellaris waits for cmdbit to clear */
- while (((status = stellaris_get_flash_status(bank)) & waitbits) && (timeout-- > 0))
- {
- DEBUG("status: 0x%x", status);
- usleep(1000);
- }
-
- /* 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)
-{
- u32 fmc;
-// stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
- target_t *target = bank->target;
-
- fmc = FMC_WRKEY | cmd;
- target_write_u32(target, FLASH_CONTROL_BASE|FLASH_FMC, fmc);
- DEBUG("Flash command: 0x%x", fmc);
-
- if (stellaris_wait_status_busy(bank, cmd, 100))
- {
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- return ERROR_OK;
-}
-
-/* Read device id register, main clock frequency register and fill in driver info structure */
-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;
- 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);
- 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))
- {
- WARNING("Unknown did0 version, cannot identify target");
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- ver = did1 >> 28;
- fam = (did1 >> 24) & 0xF;
- if(((ver != 0) && (ver != 1)) || (fam != 0))
- {
- WARNING("Unknown did1 version/family, cannot positively identify target as a Stellaris");
- }
-
- if (did1 == 0)
- {
- WARNING("Cannot identify target as a Stellaris");
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- for (i=0;StellarisParts[i].partno;i++)
- {
- 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->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);
-
- // 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)
-{
- u32 status;
-
- stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
-
- if (stellaris_info->did1 == 0)
- {
- stellaris_read_part_info(bank);
- }
-
- if (stellaris_info->did1 == 0)
- {
- 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)
-{
- int banknr;
- u32 flash_fmc, flash_cris;
- stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
- target_t *target = bank->target;
-
- if (stellaris_info->did1 == 0)
- {
- stellaris_read_part_info(bank);
- }
-
- if (stellaris_info->did1 == 0)
- {
- WARNING("Cannot identify target as Stellaris");
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- if ((first < 0) || (last < first) || (last >= stellaris_info->num_pages))
- {
- return ERROR_FLASH_SECTOR_INVALID;
- }
-
- /* 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);
-
- 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++)
- {
- /* 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
- {
- target_read_u32(target, FLASH_FMC, &flash_fmc);
- }
- while(flash_fmc & FMC_ERASE);
-
- /* Check acess violations */
- target_read_u32(target, FLASH_CRIS, &flash_cris);
- if(flash_cris & (AMASK))
- {
- WARNING("Error erasing flash page %i, flash_cris 0x%x", banknr, flash_cris);
- target_write_u32(target, FLASH_CRIS, 0);
- return ERROR_FLASH_OPERATION_FAILED;
- }
- }
-
- return ERROR_OK;
-}
-
-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)
- {
- 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);
- }
-
- if (stellaris_info->did1 == 0)
- {
- 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);
-
- fmppe = stellaris_info->lockbits;
- for (lockregion=first;lockregion<=last;lockregion++)
- {
- if (set)
- fmppe &= ~(1<<lockregion);
- else
- fmppe |= (1<<lockregion);
- }
-
- /* Clear and disable flash programming interrupts */
- target_write_u32(target, FLASH_CIM, 0);
- target_write_u32(target, FLASH_MISC, PMISC|AMISC);
-
- DEBUG("fmppe 0x%x",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 */
- 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
- {
- target_read_u32(target, FLASH_FMC, &flash_fmc);
- }
- while(flash_fmc & FMC_COMT);
-
- /* Check acess violations */
- target_read_u32(target, FLASH_CRIS, &flash_cris);
- if(flash_cris & (AMASK))
- {
- WARNING("Error setting flash page protection, flash_cris 0x%x", flash_cris);
- 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[] =
-{
-/*
- 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 */
- 0x00,0xBE, /* bkpt #0 */
-/* pFLASH_CTRL_BASE: */
- 0x00,0xD0,0x0F,0x40, /* .word 0x400FD000 */
-/* FLASHWRITECMD: */
- 0x01,0x00,0x42,0xA4 /* .word 0xA4420001 */
-};
-
-int stellaris_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 wcount)
-{
-// stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
- 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];
- armv7m_algorithm_t armv7m_info;
- int retval;
-
- DEBUG("(bank=%08X buffer=%08X offset=%08X wcount=%08X)",
- (unsigned int)bank, (unsigned int)buffer, offset, wcount);
-
- /* flash write code */
- if (target_alloc_working_area(target, sizeof(stellaris_write_code), &write_algorithm) != ERROR_OK)
- {
- 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);
-
- /* memory buffer */
- while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)
- {
- DEBUG("called target_alloc_working_area(target=%08X buffer_size=%08X source=%08X)",
- (unsigned int)target, buffer_size, (unsigned int)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);
-
- 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;
- armv7m_info.core_state = ARMV7M_STATE_THUMB;
-
- 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);
- init_reg_param(&reg_params[4], "r4", 32, PARAM_OUT);
- init_reg_param(&reg_params[5], "r5", 32, PARAM_OUT);
- init_reg_param(&reg_params[6], "r6", 32, PARAM_OUT);
- init_reg_param(&reg_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);
- WARNING("Algorithm flash write %i words to 0x%x, %i remaining",thisrun_count,address, wcount);
- 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)
- {
- ERROR("error executing stellaris flash write algorithm");
- target_free_working_area(target, source);
- destroy_reg_param(&reg_params[0]);
- destroy_reg_param(&reg_params[1]);
- destroy_reg_param(&reg_params[2]);
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- 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(&reg_params[0]);
- destroy_reg_param(&reg_params[1]);
- destroy_reg_param(&reg_params[2]);
- destroy_reg_param(&reg_params[3]);
- destroy_reg_param(&reg_params[4]);
- destroy_reg_param(&reg_params[5]);
- destroy_reg_param(&reg_params[6]);
- destroy_reg_param(&reg_params[7]);
-
- return ERROR_OK;
-}
-
-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;
-
- DEBUG("(bank=%08X buffer=%08X offset=%08X count=%08X)",
- (unsigned int)bank, (unsigned int)buffer, offset, count);
-
- if (stellaris_info->did1 == 0)
- {
- stellaris_read_part_info(bank);
- }
-
- if (stellaris_info->did1 == 0)
- {
- WARNING("Cannot identify target as a Stellaris processor");
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- if((offset & 3) || (count & 3))
- {
- 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);
-
-
- /* 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)
- {
- /* try using a block write */
- if ((retval = stellaris_write_block(bank, buffer, offset, count/4)) != ERROR_OK)
- {
- if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
- {
- /* if block write failed (no sufficient working area),
- * we use normal (slow) single dword accesses */
- 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);
-
- ERROR("flash writing failed with CRIS: 0x%x", flash_cris);
- return ERROR_FLASH_OPERATION_FAILED;
- }
- }
- else
- {
- buffer += count * 4;
- address += count * 4;
- count = 0;
- }
- }
-
-
-
- while(count>0)
- {
- if (!(address&0xff)) DEBUG("0x%x",address);
- /* Program one word */
- target_write_u32(target, FLASH_FMA, address);
- target_write_buffer(target, FLASH_FMD, 4, buffer);
- target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_WRITE);
- //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);
- buffer += 4;
- address += 4;
- count -= 4;
- }
- /* Check acess violations */
- target_read_u32(target, FLASH_CRIS, &flash_cris);
- if(flash_cris & (AMASK))
- {
- DEBUG("flash_cris 0x%x", flash_cris);
- return ERROR_FLASH_OPERATION_FAILED;
- }
- return ERROR_OK;
-}
-
-
-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
- */
- stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
-
- stellaris_info->probed = 0;
-
- if (stellaris_info->did1 == 0)
- {
- stellaris_read_part_info(bank);
- }
-
- if (stellaris_info->did1 == 0)
- {
- WARNING("Cannot identify target as a LMI Stellaris");
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- stellaris_info->probed = 1;
-
- return ERROR_OK;
-}
-
-int stellaris_auto_probe(struct flash_bank_s *bank)
-{
- stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
- if (stellaris_info->probed)
- return ERROR_OK;
- return stellaris_probe(bank);
-}
+/***************************************************************************
+ * Copyright (C) 2006 by Magnus Lundin *
+ * lundin@mlu.mine.nu *
+ * *
+ * 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 *
+ * (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ ***************************************************************************/
+
+/***************************************************************************
+* STELLARIS is tested on LM3S811
+*
+*
+*
+ ***************************************************************************/
+#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 "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);
+
+flash_driver_t stellaris_flash =
+{
+ .name = "stellaris",
+ .register_commands = stellaris_register_commands,
+ .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 = stellaris_erase_check,
+ .protect_check = stellaris_protect_check,
+ .info = stellaris_info
+};
+
+
+struct {
+ u32 partno;
+ char *partname;
+} StellarisParts[] =
+{
+ {0x01,"LM3S101"},
+ {0x02,"LM3S102"},
+ {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"},
+ {0x34,"LM3S815"},
+ {0x36,"LM3S817"},
+ {0x37,"LM3S818"},
+ {0x35,"LM3S828"},
+ {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"},
+ {0x82,"LM3S6422"},
+ {0x83,"LM3S6633"},
+ {0x84,"LM3S2139"},
+ {0x85,"LM3S2637"},
+ {0x86,"LM3S8738"},
+ {0x88,"LM3S8938"},
+ {0x89,"LM3S6938"},
+ {0x8B,"LM3S6637"},
+ {0x8C,"LM3S8933"},
+ {0x8D,"LM3S8733"},
+ {0x8E,"LM3S8538"},
+ {0x8F,"LM3S2948"},
+ {0xA1,"LM3S6100"},
+ {0xA2,"LM3S2410"},
+ {0xA3,"LM3S6730"},
+ {0xA4,"LM3S2730"},
+ {0xA5,"LM3S6420"},
+ {0xA6,"LM3S8962"},
+ {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"},
+ {0,"Unknown part"}
+};
+
+char * StellarisClassname[2] =
+{
+ "Sandstorm",
+ "Fury"
+};
+
+/***************************************************************************
+* openocd command interface *
+***************************************************************************/
+
+/* 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)
+{
+ stellaris_flash_bank_t *stellaris_info;
+
+ if (argc < 6)
+ {
+ WARNING("incomplete flash_bank stellaris configuration");
+ return ERROR_FLASH_BANK_INVALID;
+ }
+
+ 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] */
+ return ERROR_OK;
+}
+
+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");
+*/
+ return ERROR_OK;
+}
+
+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)
+ {
+ printed = snprintf(buf, buf_size, "Cannot identify target as a Stellaris\n");
+ buf += printed;
+ buf_size -= printed;
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ if (DID0_VER(stellaris_info->did0)>0)
+ {
+ 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);
+ 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);
+ 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);
+ buf += printed;
+ buf_size -= printed;
+
+ 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;
+ }
+ return ERROR_OK;
+}
+
+/***************************************************************************
+* chip identification and status *
+***************************************************************************/
+
+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)
+{
+ stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
+ target_t *target = bank->target;
+ u32 rcc, pllcfg, sysdiv, usesysdiv, bypass, oscsrc;
+ unsigned long mainfreq;
+
+ target_read_u32(target, SCB_BASE|RCC, &rcc);
+ DEBUG("Stellaris RCC %x",rcc);
+ target_read_u32(target, SCB_BASE|PLLCFG, &pllcfg);
+ 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;
+ /* xtal = (rcc>>6)&0xF; */
+ switch (oscsrc)
+ {
+ case 0:
+ mainfreq = 6000000; /* Default xtal */
+ break;
+ case 1:
+ mainfreq = 22500000; /* Internal osc. 15 MHz +- 50% */
+ break;
+ case 2:
+ mainfreq = 5625000; /* Internal osc. / 4 */
+ break;
+ case 3:
+ WARNING("Invalid oscsrc (3) in rcc register");
+ mainfreq = 6000000;
+ 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);
+}
+
+/* Setup the timimg registers */
+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);
+ 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)
+{
+ u32 status;
+
+ /* Stellaris waits for cmdbit to clear */
+ while (((status = stellaris_get_flash_status(bank)) & waitbits) && (timeout-- > 0))
+ {
+ DEBUG("status: 0x%x", status);
+ usleep(1000);
+ }
+
+ /* 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)
+{
+ u32 fmc;
+// stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
+ target_t *target = bank->target;
+
+ fmc = FMC_WRKEY | cmd;
+ target_write_u32(target, FLASH_CONTROL_BASE|FLASH_FMC, fmc);
+ DEBUG("Flash command: 0x%x", fmc);
+
+ if (stellaris_wait_status_busy(bank, cmd, 100))
+ {
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ return ERROR_OK;
+}
+
+/* Read device id register, main clock frequency register and fill in driver info structure */
+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;
+ 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);
+ 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))
+ {
+ WARNING("Unknown did0 version, cannot identify target");
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ ver = did1 >> 28;
+ fam = (did1 >> 24) & 0xF;
+ if(((ver != 0) && (ver != 1)) || (fam != 0))
+ {
+ WARNING("Unknown did1 version/family, cannot positively identify target as a Stellaris");
+ }
+
+ if (did1 == 0)
+ {
+ WARNING("Cannot identify target as a Stellaris");
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ for (i=0;StellarisParts[i].partno;i++)
+ {
+ 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->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);
+
+ // 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)
+{
+ u32 status;
+
+ stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
+
+ if (stellaris_info->did1 == 0)
+ {
+ stellaris_read_part_info(bank);
+ }
+
+ if (stellaris_info->did1 == 0)
+ {
+ 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)
+{
+ int banknr;
+ u32 flash_fmc, flash_cris;
+ stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
+ target_t *target = bank->target;
+
+ if (stellaris_info->did1 == 0)
+ {
+ stellaris_read_part_info(bank);
+ }
+
+ if (stellaris_info->did1 == 0)
+ {
+ WARNING("Cannot identify target as Stellaris");
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ if ((first < 0) || (last < first) || (last >= stellaris_info->num_pages))
+ {
+ return ERROR_FLASH_SECTOR_INVALID;
+ }
+
+ /* 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);
+
+ 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++)
+ {
+ /* 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
+ {
+ target_read_u32(target, FLASH_FMC, &flash_fmc);
+ }
+ while(flash_fmc & FMC_ERASE);
+
+ /* Check acess violations */
+ target_read_u32(target, FLASH_CRIS, &flash_cris);
+ if(flash_cris & (AMASK))
+ {
+ WARNING("Error erasing flash page %i, flash_cris 0x%x", banknr, flash_cris);
+ target_write_u32(target, FLASH_CRIS, 0);
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+ }
+
+ return ERROR_OK;
+}
+
+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)
+ {
+ 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);
+ }
+
+ if (stellaris_info->did1 == 0)
+ {
+ 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);
+
+ fmppe = stellaris_info->lockbits;
+ for (lockregion=first;lockregion<=last;lockregion++)
+ {
+ if (set)
+ fmppe &= ~(1<<lockregion);
+ else
+ fmppe |= (1<<lockregion);
+ }
+
+ /* Clear and disable flash programming interrupts */
+ target_write_u32(target, FLASH_CIM, 0);
+ target_write_u32(target, FLASH_MISC, PMISC|AMISC);
+
+ DEBUG("fmppe 0x%x",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 */
+ 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
+ {
+ target_read_u32(target, FLASH_FMC, &flash_fmc);
+ }
+ while(flash_fmc & FMC_COMT);
+
+ /* Check acess violations */
+ target_read_u32(target, FLASH_CRIS, &flash_cris);
+ if(flash_cris & (AMASK))
+ {
+ WARNING("Error setting flash page protection, flash_cris 0x%x", flash_cris);
+ 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[] =
+{
+/*
+ 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 */
+ 0x00,0xBE, /* bkpt #0 */
+/* pFLASH_CTRL_BASE: */
+ 0x00,0xD0,0x0F,0x40, /* .word 0x400FD000 */
+/* FLASHWRITECMD: */
+ 0x01,0x00,0x42,0xA4 /* .word 0xA4420001 */
+};
+
+int stellaris_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 wcount)
+{
+// stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
+ 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];
+ armv7m_algorithm_t armv7m_info;
+ int retval;
+
+ DEBUG("(bank=%08X buffer=%08X offset=%08X wcount=%08X)",
+ (unsigned int)bank, (unsigned int)buffer, offset, wcount);
+
+ /* flash write code */
+ if (target_alloc_working_area(target, sizeof(stellaris_write_code), &write_algorithm) != ERROR_OK)
+ {
+ 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);
+
+ /* memory buffer */
+ while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)
+ {
+ DEBUG("called target_alloc_working_area(target=%08X buffer_size=%08X source=%08X)",
+ (unsigned int)target, buffer_size, (unsigned int)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);
+
+ 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;
+ armv7m_info.core_state = ARMV7M_STATE_THUMB;
+
+ 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);
+ init_reg_param(&reg_params[4], "r4", 32, PARAM_OUT);
+ init_reg_param(&reg_params[5], "r5", 32, PARAM_OUT);
+ init_reg_param(&reg_params[6], "r6", 32, PARAM_OUT);
+ init_reg_param(&reg_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);
+ WARNING("Algorithm flash write %i words to 0x%x, %i remaining",thisrun_count,address, wcount);
+ 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)
+ {
+ ERROR("error executing stellaris flash write algorithm");
+ target_free_working_area(target, source);
+ destroy_reg_param(&reg_params[0]);
+ destroy_reg_param(&reg_params[1]);
+ destroy_reg_param(&reg_params[2]);
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ 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(&reg_params[0]);
+ destroy_reg_param(&reg_params[1]);
+ destroy_reg_param(&reg_params[2]);
+ destroy_reg_param(&reg_params[3]);
+ destroy_reg_param(&reg_params[4]);
+ destroy_reg_param(&reg_params[5]);
+ destroy_reg_param(&reg_params[6]);
+ destroy_reg_param(&reg_params[7]);
+
+ return ERROR_OK;
+}
+
+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;
+
+ DEBUG("(bank=%08X buffer=%08X offset=%08X count=%08X)",
+ (unsigned int)bank, (unsigned int)buffer, offset, count);
+
+ if (stellaris_info->did1 == 0)
+ {
+ stellaris_read_part_info(bank);
+ }
+
+ if (stellaris_info->did1 == 0)
+ {
+ WARNING("Cannot identify target as a Stellaris processor");
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ if((offset & 3) || (count & 3))
+ {
+ 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);
+
+
+ /* 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)
+ {
+ /* try using a block write */
+ if ((retval = stellaris_write_block(bank, buffer, offset, count/4)) != ERROR_OK)
+ {
+ if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
+ {
+ /* if block write failed (no sufficient working area),
+ * we use normal (slow) single dword accesses */
+ 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);
+
+ ERROR("flash writing failed with CRIS: 0x%x", flash_cris);
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+ }
+ else
+ {
+ buffer += count * 4;
+ address += count * 4;
+ count = 0;
+ }
+ }
+
+
+
+ while(count>0)
+ {
+ if (!(address&0xff)) DEBUG("0x%x",address);
+ /* Program one word */
+ target_write_u32(target, FLASH_FMA, address);
+ target_write_buffer(target, FLASH_FMD, 4, buffer);
+ target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_WRITE);
+ //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);
+ buffer += 4;
+ address += 4;
+ count -= 4;
+ }
+ /* Check acess violations */
+ target_read_u32(target, FLASH_CRIS, &flash_cris);
+ if(flash_cris & (AMASK))
+ {
+ DEBUG("flash_cris 0x%x", flash_cris);
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+ return ERROR_OK;
+}
+
+
+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
+ */
+ stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
+
+ stellaris_info->probed = 0;
+
+ if (stellaris_info->did1 == 0)
+ {
+ stellaris_read_part_info(bank);
+ }
+
+ if (stellaris_info->did1 == 0)
+ {
+ WARNING("Cannot identify target as a LMI Stellaris");
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ stellaris_info->probed = 1;
+
+ return ERROR_OK;
+}
+
+int stellaris_auto_probe(struct flash_bank_s *bank)
+{
+ stellaris_flash_bank_t *stellaris_info = bank->driver_priv;
+ if (stellaris_info->probed)
+ return ERROR_OK;
+ return stellaris_probe(bank);
+}
generated by cgit v1.2.3 (git 2.46.0) at 2024-11-18 21:17:06 +0000