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authorZachary T Welch <zw@superlucidity.net>2009-12-02 15:54:15 -0800
committerZachary T Welch <zw@superlucidity.net>2009-12-02 23:27:09 -0800
commitfe9228a32db930be297d4d3b35ffb94d6de1b9ab (patch)
treee71036506392e40715c992fc54346ebb8c179416 /src/flash/stellaris.c
parente1ec02bb055fa356b058dddc0a15710e0fdc9870 (diff)
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move nor drivers to src/flash/nor
Moves NOR flash drivers to 'src/flash/nor/'. Adds 'src/flash/nor/Makefile.am'. Builds 'libocdflashnor.la'.
Diffstat (limited to 'src/flash/stellaris.c')
-rw-r--r--src/flash/stellaris.c1195
1 files changed, 0 insertions, 1195 deletions
diff --git a/src/flash/stellaris.c b/src/flash/stellaris.c
deleted file mode 100644
index 771f0a71..00000000
--- a/src/flash/stellaris.c
+++ /dev/null
@@ -1,1195 +0,0 @@
-/***************************************************************************
- * 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 *
- * (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, LM3S6965
-***************************************************************************/
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "stellaris.h"
-#include "armv7m.h"
-#include "binarybuffer.h"
-#include "algorithm.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 int stellaris_mass_erase(struct flash_bank *bank);
-
-static struct {
- uint32_t partno;
- 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"},
- {0,"Unknown part"}
-};
-
-static char * StellarisClassname[5] =
-{
- "Sandstorm",
- "Fury",
- "Unknown",
- "DustDevil",
- "Tempest"
-};
-
-/***************************************************************************
-* openocd command interface *
-***************************************************************************/
-
-/* flash_bank stellaris <base> <size> 0 0 <target#>
- */
-FLASH_BANK_COMMAND_HANDLER(stellaris_flash_bank_command)
-{
- struct stellaris_flash_bank *stellaris_info;
-
- if (CMD_ARGC < 6)
- {
- LOG_WARNING("incomplete flash_bank stellaris configuration");
- return ERROR_FLASH_BANK_INVALID;
- }
-
- stellaris_info = calloc(sizeof(struct stellaris_flash_bank), 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 Specify the main crystal speed in kHz using an optional
- * argument; ditto, the speed of an external oscillator used
- * instead of a crystal. Avoid programming flash using IOSC.
- */
- return ERROR_OK;
-}
-
-static int stellaris_info(struct flash_bank *bank, char *buf, int buf_size)
-{
- 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;
- }
-
- if (DID0_VER(stellaris_info->did0) > 0)
- {
- device_class = (stellaris_info->did0 >> 16) & 0xFF;
- }
- else
- {
- device_class = 0;
- }
- printed = snprintf(buf,
- buf_size,
- "\nTI/LMI Stellaris information: Chip is "
- "class %i (%s) %s rev %c%i\n",
- device_class,
- StellarisClassname[device_class],
- stellaris_info->target_name,
- (int)('A' + ((stellaris_info->did0 >> 8) & 0xFF)),
- (int)((stellaris_info->did0) & 0xFF));
- buf += printed;
- buf_size -= printed;
-
- printed = snprintf(buf,
- buf_size,
- "did1: 0x%8.8" PRIx32 ", arch: 0x%4.4" PRIx32
- ", eproc: %s, ramsize: %ik, flashsize: %ik\n",
- stellaris_info->did1,
- stellaris_info->did1,
- "ARMv7M",
- (int)((1 + ((stellaris_info->dc0 >> 16) & 0xFFFF))/4),
- (int)((1 + (stellaris_info->dc0 & 0xFFFF))*2));
- buf += printed;
- buf_size -= printed;
-
- printed = snprintf(buf,
- buf_size,
- "master clock: %ikHz%s, "
- "rcc is 0x%" PRIx32 ", rcc2 is 0x%" PRIx32 "\n",
- (int)(stellaris_info->mck_freq / 1000),
- stellaris_info->mck_desc,
- stellaris_info->rcc,
- stellaris_info->rcc2);
- buf += printed;
- buf_size -= printed;
-
- 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 += printed;
- buf_size -= printed;
- }
- return ERROR_OK;
-}
-
-/***************************************************************************
-* chip identification and status *
-***************************************************************************/
-
-static uint32_t stellaris_get_flash_status(struct flash_bank *bank)
-{
- struct target *target = bank->target;
- uint32_t fmc;
-
- target_read_u32(target, FLASH_CONTROL_BASE | FLASH_FMC, &fmc);
-
- return fmc;
-}
-
-/** Read clock configuration and set stellaris_info->usec_clocks*/
-
-static const unsigned rcc_xtal[32] = {
- [0x00] = 1000000, /* no pll */
- [0x01] = 1843200, /* no pll */
- [0x02] = 2000000, /* no pll */
- [0x03] = 2457600, /* no pll */
-
- [0x04] = 3579545,
- [0x05] = 3686400,
- [0x06] = 4000000, /* usb */
- [0x07] = 4096000,
-
- [0x08] = 4915200,
- [0x09] = 5000000, /* usb */
- [0x0a] = 5120000,
- [0x0b] = 6000000, /* (reset) usb */
-
- [0x0c] = 6144000,
- [0x0d] = 7372800,
- [0x0e] = 8000000, /* usb */
- [0x0f] = 8192000,
-
- /* parts before DustDevil use just 4 bits for xtal spec */
-
- [0x10] = 10000000, /* usb */
- [0x11] = 12000000, /* usb */
- [0x12] = 12288000,
- [0x13] = 13560000,
-
- [0x14] = 14318180,
- [0x15] = 16000000, /* usb */
- [0x16] = 16384000,
-};
-
-static void stellaris_read_clock_info(struct flash_bank *bank)
-{
- struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
- struct target *target = bank->target;
- uint32_t rcc, rcc2, pllcfg, sysdiv, usesysdiv, bypass, oscsrc;
- unsigned xtal;
- unsigned long mainfreq;
-
- target_read_u32(target, SCB_BASE | RCC, &rcc);
- LOG_DEBUG("Stellaris RCC %" PRIx32 "", rcc);
-
- target_read_u32(target, SCB_BASE | RCC2, &rcc2);
- LOG_DEBUG("Stellaris RCC2 %" PRIx32 "", rcc);
-
- target_read_u32(target, SCB_BASE | PLLCFG, &pllcfg);
- LOG_DEBUG("Stellaris PLLCFG %" PRIx32 "", pllcfg);
-
- stellaris_info->rcc = rcc;
- stellaris_info->rcc = rcc2;
-
- sysdiv = (rcc >> 23) & 0xF;
- usesysdiv = (rcc >> 22) & 0x1;
- bypass = (rcc >> 11) & 0x1;
- oscsrc = (rcc >> 4) & 0x3;
- xtal = (rcc >> 6) & stellaris_info->xtal_mask;
-
- /* NOTE: post-Sandstorm parts have RCC2 which may override
- * parts of RCC ... with more sysdiv options, option for
- * 32768 Hz mainfreq, PLL controls. On Sandstorm it reads
- * as zero, so the "use RCC2" flag is always clear.
- */
- if (rcc2 & (1 << 31)) {
- sysdiv = (rcc2 >> 23) & 0x3F;
- bypass = (rcc2 >> 11) & 0x1;
- oscsrc = (rcc2 >> 4) & 0x7;
-
- /* FIXME Tempest parts have an additional lsb for
- * fractional sysdiv (200 MHz / 2.5 == 80 MHz)
- */
- }
-
- stellaris_info->mck_desc = "";
-
- switch (oscsrc)
- {
- case 0: /* MOSC */
- mainfreq = rcc_xtal[xtal];
- break;
- case 1: /* IOSC */
- mainfreq = stellaris_info->iosc_freq;
- stellaris_info->mck_desc = stellaris_info->iosc_desc;
- break;
- case 2: /* IOSC/4 */
- mainfreq = stellaris_info->iosc_freq / 4;
- stellaris_info->mck_desc = stellaris_info->iosc_desc;
- break;
- case 3: /* lowspeed */
- /* Sandstorm doesn't have this 30K +/- 30% osc */
- mainfreq = 30000;
- stellaris_info->mck_desc = " (±30%)";
- break;
- case 8: /* hibernation osc */
- /* not all parts support hibernation */
- mainfreq = 32768;
- break;
-
- default: /* NOTREACHED */
- mainfreq = 0;
- break;
- }
-
- /* PLL is used if it's not bypassed; its output is 200 MHz
- * even when it runs at 400 MHz (adds divide-by-two stage).
- */
- if (!bypass)
- mainfreq = 200000000;
-
- 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 */
-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;
- 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%" PRIx32 ", did1 0x%" PRIx32 ", dc0 0x%" PRIx32 ", dc1 0x%" PRIx32 "",
- did0, did1, stellaris_info->dc0, stellaris_info->dc1);
-
- ver = did0 >> 28;
- if ((ver != 0) && (ver != 1))
- {
- LOG_WARNING("Unknown did0 version, cannot identify target");
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- if (did1 == 0)
- {
- LOG_WARNING("Cannot identify target as a Stellaris");
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- ver = did1 >> 28;
- fam = (did1 >> 24) & 0xF;
- if (((ver != 0) && (ver != 1)) || (fam != 0))
- {
- LOG_WARNING("Unknown did1 version/family, cannot positively identify target as a Stellaris");
- }
-
- /* For Sandstorm, Fury, DustDevil: current data sheets say IOSC
- * is 12 MHz, but some older parts have 15 MHz. A few data sheets
- * even give _both_ numbers! We'll use current numbers; IOSC is
- * always approximate.
- *
- * For Tempest: IOSC is calibrated, 16 MHz
- */
- stellaris_info->iosc_freq = 12000000;
- stellaris_info->iosc_desc = " (±30%)";
- stellaris_info->xtal_mask = 0x0f;
-
- switch ((did0 >> 28) & 0x7) {
- case 0: /* Sandstorm */
- /*
- * Current (2009-August) parts seem to be rev C2 and use 12 MHz.
- * Parts before rev C0 used 15 MHz; some C0 parts use 15 MHz
- * (LM3S618), but some other C0 parts are 12 MHz (LM3S811).
- */
- if (((did0 >> 8) & 0xff) < 2) {
- stellaris_info->iosc_freq = 15000000;
- stellaris_info->iosc_desc = " (±50%)";
- }
- break;
- case 1:
- switch ((did0 >> 16) & 0xff) {
- case 1: /* Fury */
- break;
- case 4: /* Tempest */
- stellaris_info->iosc_freq = 16000000; /* +/- 1% */
- stellaris_info->iosc_desc = " (±1%)";
- /* FALL THROUGH */
- case 3: /* DustDevil */
- stellaris_info->xtal_mask = 0x1f;
- break;
- default:
- LOG_WARNING("Unknown did0 class");
- }
- default:
- break;
- LOG_WARNING("Unknown did0 version");
- }
-
- 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);
-
- /* 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);
-
- return ERROR_OK;
-}
-
-/***************************************************************************
-* flash operations *
-***************************************************************************/
-
-static int stellaris_protect_check(struct flash_bank *bank)
-{
- uint32_t status;
-
- 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_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;
- }
-
- status = stellaris_get_flash_status(bank);
- stellaris_info->lockbits = status >> 16;
-
- return ERROR_OK;
-}
-
-static int stellaris_erase(struct flash_bank *bank, int first, int last)
-{
- int banknr;
- uint32_t flash_fmc, flash_cris;
- struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
- struct target *target = bank->target;
-
- if (bank->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;
- }
-
- 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_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);
-
- 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))
- {
- LOG_WARNING("Error erasing flash page %i, flash_cris 0x%" PRIx32 "", banknr, flash_cris);
- target_write_u32(target, FLASH_CRIS, 0);
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- bank->sectors[banknr].is_erased = 1;
- }
-
- return ERROR_OK;
-}
-
-static int stellaris_protect(struct flash_bank *bank, int set, int first, int last)
-{
- uint32_t fmppe, flash_fmc, flash_cris;
- int lockregion;
-
- struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
- struct target *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);
- }
-
- if (stellaris_info->did1 == 0)
- {
- 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);
-
- 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);
-
- 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 */
- 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
- {
- 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))
- {
- LOG_WARNING("Error setting flash page protection, flash_cris 0x%" PRIx32 "", flash_cris);
- target_write_u32(target, FLASH_CRIS, 0);
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- target_read_u32(target, SCB_BASE | FMPPE, &stellaris_info->lockbits);
-
- return ERROR_OK;
-}
-
-static uint8_t stellaris_write_code[] =
-{
-/*
- Call with :
- r0 = buffer address
- r1 = destination address
- r2 = bytecount (in) - endaddr (work)
-
- Used registers:
- r3 = pFLASH_CTRL_BASE
- r4 = FLASHWRITECMD
- r5 = #1
- r6 = bytes written
- r7 = temp reg
-*/
- 0x07,0x4B, /* ldr r3,pFLASH_CTRL_BASE */
- 0x08,0x4C, /* ldr r4,FLASHWRITECMD */
- 0x01,0x25, /* movs r5, 1 */
- 0x00,0x26, /* movs r6, #0 */
-/* mainloop: */
- 0x19,0x60, /* str r1, [r3, #0] */
- 0x87,0x59, /* ldr r7, [r0, r6] */
- 0x5F,0x60, /* str r7, [r3, #4] */
- 0x9C,0x60, /* str r4, [r3, #8] */
-/* waitloop: */
- 0x9F,0x68, /* ldr r7, [r3, #8] */
- 0x2F,0x42, /* tst r7, r5 */
- 0xFC,0xD1, /* bne waitloop */
- 0x04,0x31, /* adds r1, r1, #4 */
- 0x04,0x36, /* adds r6, r6, #4 */
- 0x96,0x42, /* cmp r6, r2 */
- 0xF4,0xD1, /* bne mainloop */
- /* exit: */
- 0xFE,0xE7, /* b exit */
-/* pFLASH_CTRL_BASE: */
- 0x00,0xD0,0x0F,0x40, /* .word 0x400FD000 */
-/* FLASHWRITECMD: */
- 0x01,0x00,0x42,0xA4 /* .word 0xA4420001 */
-};
-
-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 working_area *source;
- struct working_area *write_algorithm;
- uint32_t address = bank->base + offset;
- struct reg_param reg_params[3];
- struct armv7m_algorithm armv7m_info;
- int retval = ERROR_OK;
-
- 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");
- 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)
- {
- 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 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(&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);
-
- while (wcount > 0)
- {
- uint32_t thisrun_count = (wcount > (buffer_size / 4)) ? (buffer_size / 4) : wcount;
-
- target_write_buffer(target, source->address, thisrun_count * 4, buffer);
-
- buf_set_u32(reg_params[0].value, 0, 32, source->address);
- buf_set_u32(reg_params[1].value, 0, 32, address);
- buf_set_u32(reg_params[2].value, 0, 32, 4*thisrun_count);
- LOG_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_ERROR("error executing stellaris flash write algorithm");
- 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(&reg_params[0]);
- destroy_reg_param(&reg_params[1]);
- destroy_reg_param(&reg_params[2]);
-
- return retval;
-}
-
-static int stellaris_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
-{
- struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
- struct target *target = bank->target;
- uint32_t address = offset;
- uint32_t flash_cris, flash_fmc;
- uint32_t words_remaining = (count / 4);
- uint32_t bytes_remaining = (count & 0x00000003);
- uint32_t bytes_written = 0;
- int retval;
-
- if (bank->target->state != TARGET_HALTED)
- {
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
- }
-
- LOG_DEBUG("(bank=%p buffer=%p offset=%08" PRIx32 " count=%08" PRIx32 "",
- 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;
- }
-
- 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);
-
- /* 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 (words_remaining > 0)
- {
- /* try using a block write */
- 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 */
- 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%" PRIx32 "", flash_cris);
- return ERROR_FLASH_OPERATION_FAILED;
- }
- }
- else
- {
- buffer += words_remaining * 4;
- address += words_remaining * 4;
- words_remaining = 0;
- }
- }
-
- while (words_remaining > 0)
- {
- if (!(address & 0xff))
- LOG_DEBUG("0x%" PRIx32 "", 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);
- /* 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);
-
- buffer += 4;
- address += 4;
- words_remaining--;
- }
-
- if (bytes_remaining)
- {
- uint8_t last_word[4] = {0xff, 0xff, 0xff, 0xff};
- int i = 0;
-
- while (bytes_remaining > 0)
- {
- last_word[i++] = *(buffer + bytes_written);
- bytes_remaining--;
- bytes_written++;
- }
-
- if (!(address & 0xff))
- LOG_DEBUG("0x%" PRIx32 "", 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))
- {
- LOG_DEBUG("flash_cris 0x%" PRIx32 "", flash_cris);
- return ERROR_FLASH_OPERATION_FAILED;
- }
- return ERROR_OK;
-}
-
-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
- */
-
- if (bank->target->state != TARGET_HALTED)
- {
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
- }
-
- /* 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);
-}
-
-static int stellaris_mass_erase(struct flash_bank *bank)
-{
- struct target *target = NULL;
- struct stellaris_flash_bank *stellaris_info = NULL;
- uint32_t 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;
-}
-
-COMMAND_HANDLER(stellaris_handle_mass_erase_command)
-{
- int i;
-
- if (CMD_ARGC < 1)
- {
- command_print(CMD_CTX, "stellaris mass_erase <bank>");
- return ERROR_OK;
- }
-
- struct flash_bank *bank;
- int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
- if (ERROR_OK != retval)
- return retval;
-
- if (stellaris_mass_erase(bank) == ERROR_OK)
- {
- /* 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;
-}
-
-static const struct command_registration stellaris_exec_command_handlers[] = {
- {
- .name = "mass_erase",
- .handler = &stellaris_handle_mass_erase_command,
- .mode = COMMAND_EXEC,
- .help = "erase entire device",
- },
- COMMAND_REGISTRATION_DONE
-};
-static const struct command_registration stellaris_command_handlers[] = {
- {
- .name = "stellaris",
- .mode = COMMAND_ANY,
- .help = "Stellaris flash command group",
- .chain = stellaris_exec_command_handlers,
- },
- COMMAND_REGISTRATION_DONE
-};
-
-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,
- };