From d17e1cd93384d56886be7e67cf2b31e97118d811 Mon Sep 17 00:00:00 2001
From: oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60>
Date: Thu, 28 Feb 2008 08:25:46 +0000
Subject: eCos flash driver.
git-svn-id: svn://svn.berlios.de/openocd/trunk@365 b42882b7-edfa-0310-969c-e2dbd0fdcd60
---
src/flash/Makefile.am | 2 +-
src/flash/ecos.c | 481 ++++++++++++++++++++++++++++++++++++++++++++++++++
src/flash/flash.c | 2 +
3 files changed, 484 insertions(+), 1 deletion(-)
create mode 100644 src/flash/ecos.c
(limited to 'src/flash')
diff --git a/src/flash/Makefile.am b/src/flash/Makefile.am
index 90f009e9..4d0280f6 100644
--- a/src/flash/Makefile.am
+++ b/src/flash/Makefile.am
@@ -3,7 +3,7 @@ AM_CPPFLAGS = -DPKGLIBDIR=\"$(pkglibdir)\" @CPPFLAGS@
METASOURCES = AUTO
noinst_LIBRARIES = libflash.a
libflash_a_SOURCES = flash.c lpc2000.c cfi.c non_cfi.c at91sam7.c str7x.c str9x.c nand.c lpc3180_nand_controller.c \
- stellaris.c str9xpec.c stm32x.c tms470.c \
+ stellaris.c str9xpec.c stm32x.c tms470.c ecos.c \
s3c24xx_nand.c s3c2410_nand.c s3c2412_nand.c s3c2440_nand.c s3c2443_nand.c
noinst_HEADERS = flash.h lpc2000.h cfi.h non_cfi.h at91sam7.h str7x.h str9x.h nand.h lpc3180_nand_controller.h \
stellaris.h str9xpec.h stm32x.h tms470.h s3c24xx_nand.h s3c24xx_regs_nand.h
diff --git a/src/flash/ecos.c b/src/flash/ecos.c
new file mode 100644
index 00000000..6aec41d6
--- /dev/null
+++ b/src/flash/ecos.c
@@ -0,0 +1,481 @@
+/***************************************************************************
+ * Copyright (C) 2008 �yvind Harboe *
+ * oyvind.harboe@zylin.com *
+ * *
+ * 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. *
+ ***************************************************************************/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "replacements.h"
+
+
+#include "flash.h"
+
+#include "target.h"
+
+#include "flash.h"
+#include "target.h"
+#include "log.h"
+#include "binarybuffer.h"
+#include "../target/embeddedice.h"
+#include "types.h"
+
+
+
+int ecosflash_register_commands(struct command_context_s *cmd_ctx);
+int ecosflash_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
+int ecosflash_erase(struct flash_bank_s *bank, int first, int last);
+int ecosflash_protect(struct flash_bank_s *bank, int set, int first, int last);
+int ecosflash_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
+int ecosflash_probe(struct flash_bank_s *bank);
+int ecosflash_erase_check(struct flash_bank_s *bank);
+int ecosflash_protect_check(struct flash_bank_s *bank);
+int ecosflash_info(struct flash_bank_s *bank, char *buf, int buf_size);
+
+u32 ecosflash_get_flash_status(flash_bank_t *bank);
+void ecosflash_set_flash_mode(flash_bank_t *bank,int mode);
+u32 ecosflash_wait_status_busy(flash_bank_t *bank, u32 waitbits, int timeout);
+int ecosflash_handle_gpnvm_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+
+flash_driver_t ecosflash_flash =
+{
+ .name = "ecosflash",
+ .register_commands = ecosflash_register_commands,
+ .flash_bank_command = ecosflash_flash_bank_command,
+ .erase = ecosflash_erase,
+ .protect = ecosflash_protect,
+ .write = ecosflash_write,
+ .probe = ecosflash_probe,
+ .auto_probe = ecosflash_probe,
+ .erase_check = ecosflash_erase_check,
+ .protect_check = ecosflash_protect_check,
+ .info = ecosflash_info
+};
+
+typedef struct ecosflash_flash_bank_s
+{
+ struct target_s *target;
+ working_area_t *write_algorithm;
+ working_area_t *erase_check_algorithm;
+ char *driverPath;
+ u32 start_address;
+} ecosflash_flash_bank_t;
+
+static const int sectorSize=0x10000;
+
+#define FLASH_ERR_OK 0x00 // No error - operation complete
+#define FLASH_ERR_INVALID 0x01 // Invalid FLASH address
+#define FLASH_ERR_ERASE 0x02 // Error trying to erase
+#define FLASH_ERR_LOCK 0x03 // Error trying to lock/unlock
+#define FLASH_ERR_PROGRAM 0x04 // Error trying to program
+#define FLASH_ERR_PROTOCOL 0x05 // Generic error
+#define FLASH_ERR_PROTECT 0x06 // Device/region is write-protected
+#define FLASH_ERR_NOT_INIT 0x07 // FLASH info not yet initialized
+#define FLASH_ERR_HWR 0x08 // Hardware (configuration?) problem
+#define FLASH_ERR_ERASE_SUSPEND 0x09 // Device is in erase suspend mode
+#define FLASH_ERR_PROGRAM_SUSPEND 0x0a // Device is in in program suspend mode
+#define FLASH_ERR_DRV_VERIFY 0x0b // Driver failed to verify data
+#define FLASH_ERR_DRV_TIMEOUT 0x0c // Driver timed out waiting for device
+#define FLASH_ERR_DRV_WRONG_PART 0x0d // Driver does not support device
+#define FLASH_ERR_LOW_VOLTAGE 0x0e // Not enough juice to complete job
+
+
+char *
+flash_errmsg(int err)
+{
+ switch (err) {
+ case FLASH_ERR_OK:
+ return "No error - operation complete";
+ case FLASH_ERR_ERASE_SUSPEND:
+ return "Device is in erase suspend state";
+ case FLASH_ERR_PROGRAM_SUSPEND:
+ return "Device is in program suspend state";
+ case FLASH_ERR_INVALID:
+ return "Invalid FLASH address";
+ case FLASH_ERR_ERASE:
+ return "Error trying to erase";
+ case FLASH_ERR_LOCK:
+ return "Error trying to lock/unlock";
+ case FLASH_ERR_PROGRAM:
+ return "Error trying to program";
+ case FLASH_ERR_PROTOCOL:
+ return "Generic error";
+ case FLASH_ERR_PROTECT:
+ return "Device/region is write-protected";
+ case FLASH_ERR_NOT_INIT:
+ return "FLASH sub-system not initialized";
+ case FLASH_ERR_DRV_VERIFY:
+ return "Data verify failed after operation";
+ case FLASH_ERR_DRV_TIMEOUT:
+ return "Driver timed out waiting for device";
+ case FLASH_ERR_DRV_WRONG_PART:
+ return "Driver does not support device";
+ case FLASH_ERR_LOW_VOLTAGE:
+ return "Device reports low voltage";
+ default:
+ return "Unknown error";
+ }
+}
+
+
+/* flash bank ecosflash <base> <size> <chip_width> <bus_width> <target#> <driverPath>
+ */
+int ecosflash_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
+{
+ ecosflash_flash_bank_t *info;
+
+ if (argc < 7)
+ {
+ WARNING("incomplete flash_bank ecosflash configuration");
+ return ERROR_FLASH_BANK_INVALID;
+ }
+
+ info = malloc(sizeof(ecosflash_flash_bank_t));
+ if(info == NULL)
+ {
+ ERROR("no memory for flash bank info");
+ exit(-1);
+ }
+ bank->driver_priv = info;
+ info->driverPath=strdup(args[6]);
+
+ // eCos flash sector sizes are not exposed to OpenOCD, use 0x10000 as
+ // a way to improve impeadance matach between OpenOCD and eCos flash
+ // driver
+ int i = 0;
+ u32 offset = 0;
+ bank->num_sectors=bank->size/sectorSize;
+ bank->sectors = malloc(sizeof(flash_sector_t) * bank->num_sectors);
+ for (i = 0; i < bank->num_sectors; i++)
+ {
+ bank->sectors[i].offset = offset;
+ bank->sectors[i].size = sectorSize;
+ offset += bank->sectors[i].size;
+ bank->sectors[i].is_erased = -1;
+ bank->sectors[i].is_protected = 0;
+ }
+
+ info->target = get_target_by_num(strtoul(args[5], NULL, 0));
+ if (info->target == NULL)
+ {
+ ERROR("no target '%i' configured", (int)strtoul(args[5], NULL, 0));
+ exit(-1);
+ }
+ return ERROR_OK;
+}
+
+
+int loadDriver(ecosflash_flash_bank_t *info)
+{
+ u32 buf_cnt;
+ u32 image_size;
+ image_t image;
+
+ image.base_address_set = 0;
+ image.start_address_set = 0;
+ target_t *target=info->target;
+
+ if (image_open(&image, info->driverPath, NULL) != ERROR_OK)
+ {
+ ERROR("load_image error: %s", image.error_str);
+ return ERROR_FLASH_BANK_INVALID;
+ }
+
+ info->start_address=image.start_address;
+
+ image_size = 0x0;
+ int i;
+ for (i = 0; i < image.num_sections; i++)
+ {
+ void *buffer = malloc(image.sections[i].size);
+ int retval;
+ if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
+ {
+ ERROR("image_read_section failed with error code: %i", retval);
+ free(buffer);
+ image_close(&image);
+ return ERROR_FLASH_BANK_INVALID;
+ }
+ target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer);
+ image_size += buf_cnt;
+ DEBUG("%u byte written at address 0x%8.8x", buf_cnt, image.sections[i].base_address);
+
+ free(buffer);
+ }
+
+ image_close(&image);
+
+ return ERROR_OK;
+}
+
+
+static int const OFFSET_ERASE=0x0;
+static int const OFFSET_ERASE_SIZE=0x8;
+static int const OFFSET_FLASH=0xc;
+static int const OFFSET_FLASH_SIZE=0x8;
+static int const OFFSET_GET_WORKAREA=0x18;
+static int const OFFSET_GET_WORKAREA_SIZE=0x4;
+
+
+int runCode(ecosflash_flash_bank_t *info,
+ u32 codeStart, u32 codeStop, u32 r0, u32 r1, u32 r2,
+ u32 *result,
+ // timeout in ms
+ int timeout)
+{
+ target_t *target=info->target;
+
+ reg_param_t reg_params[3];
+ armv4_5_algorithm_t armv4_5_info;
+ armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
+ armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
+ armv4_5_info.core_state = ARMV4_5_STATE_ARM;
+
+ init_reg_param(®_params[0], "r0", 32, PARAM_IN_OUT);
+ init_reg_param(®_params[1], "r1", 32, PARAM_OUT);
+ init_reg_param(®_params[2], "r2", 32, PARAM_OUT);
+
+ buf_set_u32(reg_params[0].value, 0, 32, r0);
+ buf_set_u32(reg_params[1].value, 0, 32, r1);
+ buf_set_u32(reg_params[2].value, 0, 32, r2);
+
+ int retval;
+ if ((retval = target->type->run_algorithm(target, 0, NULL, 3, reg_params,
+ codeStart,
+ codeStop, timeout,
+ &armv4_5_info)) != ERROR_OK)
+ {
+ ERROR("error executing eCos flash algorithm");
+ return retval;
+ }
+
+ *result=buf_get_u32(reg_params[0].value, 0, 32);
+
+ destroy_reg_param(®_params[0]);
+ destroy_reg_param(®_params[1]);
+ destroy_reg_param(®_params[2]);
+
+ return ERROR_OK;
+}
+
+int eCosBoard_erase(ecosflash_flash_bank_t *info, u32 address, u32 len)
+{
+ int retval;
+ int timeout = (len / 20480 + 1) * 1000; /*asume 20 KB/s*/
+
+ retval=loadDriver(info);
+ if (retval!=ERROR_OK)
+ return retval;
+
+ u32 flashErr;
+ retval=runCode(info,
+ info->start_address+OFFSET_ERASE,
+ info->start_address+OFFSET_ERASE+OFFSET_ERASE_SIZE,
+ address,
+ len,
+ 0,
+ &flashErr,
+ timeout
+ );
+ if (retval!=ERROR_OK)
+ return retval;
+
+ if (flashErr != 0x0)
+ {
+ ERROR("Flash erase failed with %d (%s)\n", flashErr, flash_errmsg(flashErr));
+ return ERROR_JTAG_DEVICE_ERROR;
+ }
+
+ return ERROR_OK;
+}
+
+int eCosBoard_flash(ecosflash_flash_bank_t *info, void *data, u32 address, u32 len)
+{
+ target_t *target=info->target;
+ const int chunk=8192;
+ int retval=ERROR_OK;
+ int timeout = (chunk / 20480 + 1) * 1000; /*asume 20 KB/s + 1 second*/
+
+ retval=loadDriver(info);
+ if (retval!=ERROR_OK)
+ return retval;
+
+ u32 buffer;
+ retval=runCode(info,
+ info->start_address+OFFSET_GET_WORKAREA,
+ info->start_address+OFFSET_GET_WORKAREA+OFFSET_GET_WORKAREA_SIZE,
+ 0,
+ 0,
+ 0,
+ &buffer,
+ 1000);
+ if (retval!=ERROR_OK)
+ return retval;
+
+
+ int i;
+ for (i=0; i<len; i+=chunk)
+ {
+ int t=len-i;
+ if (t>chunk)
+ {
+ t=chunk;
+ }
+
+ int retval;
+ retval=target_write_buffer(target, buffer, t, ((char *)data)+i);
+ if (retval != ERROR_OK)
+ return retval;
+
+ u32 flashErr;
+ retval=runCode(info,
+ info->start_address+OFFSET_FLASH,
+ info->start_address+OFFSET_FLASH+OFFSET_FLASH_SIZE,
+ buffer,
+ address+i,
+ t,
+ &flashErr,
+ timeout);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (flashErr != 0x0)
+ {
+ ERROR("Flash prog failed with %d (%s)\n", flashErr, flash_errmsg(flashErr));
+ return ERROR_JTAG_DEVICE_ERROR;
+ }
+ }
+ return ERROR_OK;
+}
+
+
+int ecosflash_probe(struct flash_bank_s *bank)
+{
+ return ERROR_OK;
+}
+
+
+int ecosflash_register_commands(struct command_context_s *cmd_ctx)
+{
+ register_command(cmd_ctx, NULL, "ecosflash", NULL, COMMAND_ANY, NULL);
+
+ return ERROR_OK;
+}
+
+/*
+static void command(flash_bank_t *bank, u8 cmd, u8 *cmd_buf)
+{
+ ecosflash_flash_bank_t *info = bank->driver_priv;
+ int i;
+
+ if (info->target->endianness == TARGET_LITTLE_ENDIAN)
+ {
+ for (i = bank->bus_width; i > 0; i--)
+ {
+ *cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;
+ }
+ }
+ else
+ {
+ for (i = 1; i <= bank->bus_width; i++)
+ {
+ *cmd_buf++ = (i & (bank->chip_width - 1)) ? 0x0 : cmd;
+ }
+ }
+}
+*/
+
+u32 ecosflash_address(struct flash_bank_s *bank, u32 address)
+{
+ u32 retval = 0;
+ switch(bank->bus_width)
+ {
+ case 4:
+ retval = address & 0xfffffffc;
+ case 2:
+ retval = address & 0xfffffffe;
+ case 1:
+ retval = address;
+ }
+
+ return retval + bank->base;
+}
+
+
+int ecosflash_erase(struct flash_bank_s *bank, int first, int last)
+{
+ struct flash_bank_s *c=bank;
+ ecosflash_flash_bank_t *info = bank->driver_priv;
+ return eCosBoard_erase(info, c->base+first*sectorSize, sectorSize*(last-first+1));
+}
+
+int ecosflash_protect(struct flash_bank_s *bank, int set, int first, int last)
+{
+ return ERROR_OK;
+}
+
+
+int ecosflash_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
+{
+ ecosflash_flash_bank_t *info = bank->driver_priv;
+ struct flash_bank_s *c=bank;
+ return eCosBoard_flash(info, buffer, c->base+offset, count);
+}
+
+
+int ecosflash_erase_check(struct flash_bank_s *bank)
+{
+ return ERROR_OK;
+}
+
+int ecosflash_protect_check(struct flash_bank_s *bank)
+{
+ return ERROR_OK;
+}
+
+int ecosflash_info(struct flash_bank_s *bank, char *buf, int buf_size)
+{
+ ecosflash_flash_bank_t *info = bank->driver_priv;
+ snprintf(buf, buf_size, "eCos flash driver: %s", info->driverPath);
+ return ERROR_OK;
+}
+
+
+u32 ecosflash_get_flash_status(flash_bank_t *bank)
+{
+ return ERROR_OK;
+}
+
+void ecosflash_set_flash_mode(flash_bank_t *bank,int mode)
+{
+
+}
+
+u32 ecosflash_wait_status_busy(flash_bank_t *bank, u32 waitbits, int timeout)
+{
+ return ERROR_OK;
+}
+
+int ecosflash_handle_gpnvm_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ return ERROR_OK;
+}
+
+
+
+
diff --git a/src/flash/flash.c b/src/flash/flash.c
index 2fefb4cd..f1710851 100644
--- a/src/flash/flash.c
+++ b/src/flash/flash.c
@@ -64,6 +64,7 @@ extern flash_driver_t stellaris_flash;
extern flash_driver_t str9xpec_flash;
extern flash_driver_t stm32x_flash;
extern flash_driver_t tms470_flash;
+extern flash_driver_t ecosflash_flash;
flash_driver_t *flash_drivers[] =
{
@@ -76,6 +77,7 @@ flash_driver_t *flash_drivers[] =
&str9xpec_flash,
&stm32x_flash,
&tms470_flash,
+ &ecosflash_flash,
NULL,
};
--
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