Browse Source

Pavel Chromy's on chip flash loader

git-svn-id: svn://svn.berlios.de/openocd/trunk@612 b42882b7-edfa-0310-969c-e2dbd0fdcd60
tags/v0.1.0
oharboe 14 years ago
parent
commit
831d41e750
17 changed files with 1539 additions and 1 deletions
  1. +1
    -1
      src/flash/Makefile.am
  2. +2
    -0
      src/flash/flash.c
  3. +402
    -0
      src/flash/ocl.c
  4. +40
    -0
      src/flash/ocl.h
  5. +4
    -0
      src/flash/ocl/at91sam7x/at91sam7x_ocl_flash.script
  6. +132
    -0
      src/flash/ocl/at91sam7x/at91sam7x_ram.ld
  7. +225
    -0
      src/flash/ocl/at91sam7x/crt.s
  8. +51
    -0
      src/flash/ocl/at91sam7x/dcc.c
  9. +31
    -0
      src/flash/ocl/at91sam7x/dcc.h
  10. +107
    -0
      src/flash/ocl/at91sam7x/main.c
  11. +130
    -0
      src/flash/ocl/at91sam7x/makefile
  12. +40
    -0
      src/flash/ocl/at91sam7x/ocl.h
  13. +46
    -0
      src/flash/ocl/at91sam7x/platform.h
  14. +196
    -0
      src/flash/ocl/at91sam7x/samflash.c
  15. +48
    -0
      src/flash/ocl/at91sam7x/samflash.h
  16. +83
    -0
      src/flash/ocl/at91sam7x/samregs.h
  17. +1
    -0
      src/target/target.h

+ 1
- 1
src/flash/Makefile.am View File

@@ -4,6 +4,6 @@ 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 ecos.c \
s3c24xx_nand.c s3c2410_nand.c s3c2412_nand.c s3c2440_nand.c s3c2443_nand.c lpc288x.c
s3c24xx_nand.c s3c2410_nand.c s3c2412_nand.c s3c2440_nand.c s3c2443_nand.c lpc288x.c ocl.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 lpc288x.h

+ 2
- 0
src/flash/flash.c View File

@@ -70,6 +70,7 @@ extern flash_driver_t stm32x_flash;
extern flash_driver_t tms470_flash;
extern flash_driver_t ecosflash_flash;
extern flash_driver_t lpc288x_flash;
extern flash_driver_t ocl_flash;

flash_driver_t *flash_drivers[] =
{
@@ -84,6 +85,7 @@ flash_driver_t *flash_drivers[] =
&tms470_flash,
&ecosflash_flash,
&lpc288x_flash,
&ocl_flash,
NULL,
};



+ 402
- 0
src/flash/ocl.c View File

@@ -0,0 +1,402 @@
/***************************************************************************
* Copyright (C) 2007 by Pavel Chromy *
* chromy@asix.cz *
* *
* 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 "ocl.h"
#include "flash.h"
#include "target.h"
#include "log.h"
#include "binarybuffer.h"
#include "types.h"
#include "embeddedice.h"
#include "arm7_9_common.h"
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
int ocl_register_commands(struct command_context_s *cmd_ctx);
int ocl_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
int ocl_erase(struct flash_bank_s *bank, int first, int last);
int ocl_protect(struct flash_bank_s *bank, int set, int first, int last);
int ocl_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
int ocl_probe(struct flash_bank_s *bank);
int ocl_erase_check(struct flash_bank_s *bank);
int ocl_protect_check(struct flash_bank_s *bank);
int ocl_info(struct flash_bank_s *bank, char *buf, int buf_size);
int ocl_auto_probe(struct flash_bank_s *bank);
flash_driver_t ocl_flash =
{
.name = "ocl",
.register_commands = ocl_register_commands,
.flash_bank_command = ocl_flash_bank_command,
.erase = ocl_erase,
.protect = ocl_protect,
.write = ocl_write,
.probe = ocl_probe,
.erase_check = ocl_erase_check,
.protect_check = ocl_protect_check,
.info = ocl_info,
.auto_probe = ocl_auto_probe
};
typedef struct ocl_priv_s
{
arm_jtag_t *jtag_info;
int buflen;
int bufalign;
} ocl_priv_t;
int ocl_register_commands(struct command_context_s *cmd_ctx)
{
return ERROR_OK;
}
int ocl_erase_check(struct flash_bank_s *bank)
{
return ERROR_OK;
}
int ocl_protect_check(struct flash_bank_s *bank)
{
return ERROR_OK;
}
/* flash_bank ocl 0 0 0 0 <target#> */
int ocl_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
{
int retval;
armv4_5_common_t *armv4_5;
arm7_9_common_t *arm7_9;
ocl_priv_t *ocl;
if (argc < 6)
{
LOG_WARNING("incomplete flash_bank ocl configuration");
return ERROR_FLASH_BANK_INVALID;
}
if ((retval = arm7_9_get_arch_pointers(bank->target, &armv4_5, &arm7_9)) != ERROR_OK)
return retval;
ocl = bank->driver_priv = malloc(sizeof(ocl_priv_t));
ocl->jtag_info = &arm7_9->jtag_info;
ocl->buflen = 0;
ocl->bufalign = 1;
return ERROR_OK;
}
int ocl_erase(struct flash_bank_s *bank, int first, int last)
{
ocl_priv_t *ocl = bank->driver_priv;
int retval;
u32 dcc_buffer[3];
/* check preconditions */
if (bank->num_sectors == 0)
return ERROR_FLASH_BANK_NOT_PROBED;
if (bank->target->state != TARGET_RUNNING)
{
LOG_ERROR("target has to be running to communicate with the loader");
return ERROR_TARGET_NOT_RUNNING;
}
if ((first == 0) && (last == bank->num_sectors - 1))
{
dcc_buffer[0] = OCL_ERASE_ALL;
if ((retval = embeddedice_send(ocl->jtag_info, dcc_buffer, 1) != ERROR_OK))
return retval;
}
else
{
dcc_buffer[0] = OCL_ERASE_BLOCK;
dcc_buffer[1] = first;
dcc_buffer[2] = last;
if ((retval = embeddedice_send(ocl->jtag_info, dcc_buffer, 3) != ERROR_OK))
return retval;
}
/* wait for response, fixed timeout of 1 s */
if ((retval = embeddedice_handshake(ocl->jtag_info, EICE_COMM_CTRL_WBIT, 1000) != ERROR_OK))
{
if (retval == ERROR_TARGET_TIMEOUT)
LOG_ERROR("loader not responding");
return retval;
}
/* receive response */
if ((retval = embeddedice_receive(ocl->jtag_info, dcc_buffer+1, 1) != ERROR_OK))
return retval;
if (dcc_buffer[1] != OCL_CMD_DONE)
{
if (dcc_buffer[0] == OCL_ERASE_ALL)
LOG_ERROR("loader response to OCL_ERASE_ALL 0x%08lX", dcc_buffer[1]);
else
LOG_ERROR("loader response to OCL_ERASE_BLOCK 0x%08lX", dcc_buffer[1]);
return ERROR_FLASH_OPERATION_FAILED;
}
return ERROR_OK;
}
int ocl_protect(struct flash_bank_s *bank, int set, int first, int last)
{
return ERROR_OK;
}
int ocl_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
{
ocl_priv_t *ocl = bank->driver_priv;
int retval;
u32 *dcc_buffer;
u32 *dcc_bufptr;
int byteofs;
int runlen;
u32 chksum;
int i;
/* check preconditions */
if (ocl->buflen == 0 || ocl->bufalign==0)
return ERROR_FLASH_BANK_NOT_PROBED;
if (bank->target->state != TARGET_RUNNING)
{
LOG_ERROR("target has to be running to communicate with the loader");
return ERROR_TARGET_NOT_RUNNING;
}
/* allocate buffer for max. ocl buffer + overhead */
dcc_buffer = malloc(sizeof(u32)*(ocl->buflen/4+3));
while (count)
{
if (count + (offset % ocl->bufalign) > ocl->buflen)
runlen = ocl->buflen - (offset % ocl->bufalign);
else
runlen = count;
dcc_buffer[0] = OCL_FLASH_BLOCK | runlen;
dcc_buffer[1] = offset;
dcc_bufptr = &dcc_buffer[2];
*dcc_bufptr = 0xffffffff;
byteofs = (offset % ocl->bufalign) % 4;
chksum = OCL_CHKS_INIT;
/* copy data to DCC buffer in proper byte order and properly aligned */
for (i=0; i<runlen; i++)
{
switch (byteofs++)
{
case 0:
*dcc_bufptr &= *(buffer++) | 0xffffff00;
break;
case 1:
*dcc_bufptr &= ((*(buffer++))<<8) | 0xffff00ff;
break;
case 2:
*dcc_bufptr &= ((*(buffer++))<<16) | 0xff00ffff;
break;
case 3:
*dcc_bufptr &= ((*(buffer++))<<24) | 0x00ffffff;
chksum ^= *(dcc_bufptr++);
*dcc_bufptr = 0xffffffff;
byteofs = 0;
break;
}
}
/* add the remaining word to checksum */
if (byteofs)
chksum ^= *(dcc_bufptr++);
*(dcc_bufptr++) = chksum;
/* send the data */
if ((retval = embeddedice_send(ocl->jtag_info, dcc_buffer, dcc_bufptr-dcc_buffer)) != ERROR_OK)
{
free(dcc_buffer);
return retval;
}
/* wait for response, fixed timeout of 1 s */
if ((retval = embeddedice_handshake(ocl->jtag_info, EICE_COMM_CTRL_WBIT, 1000) != ERROR_OK))
{
if (retval == ERROR_TARGET_TIMEOUT)
LOG_ERROR("loader not responding");
free(dcc_buffer);
return retval;
}
/* receive response */
if ((retval = embeddedice_receive(ocl->jtag_info, dcc_buffer, 1) != ERROR_OK))
{
free(dcc_buffer);
return retval;
}
if (dcc_buffer[0] != OCL_CMD_DONE)
{
LOG_ERROR("loader response to OCL_FLASH_BLOCK 0x%08lX", dcc_buffer[0]);
free(dcc_buffer);
return ERROR_FLASH_OPERATION_FAILED;
}
count -= runlen;
offset += runlen;
}
free(dcc_buffer);
return ERROR_OK;
}
int ocl_probe(struct flash_bank_s *bank)
{
ocl_priv_t *ocl = bank->driver_priv;
int retval;
u32 dcc_buffer[1];
int sectsize;
int i;
/* purge pending data in DCC */
embeddedice_receive(ocl->jtag_info, dcc_buffer, 1);
dcc_buffer[0] = OCL_PROBE;
if ((retval = embeddedice_send(ocl->jtag_info, dcc_buffer, 1) != ERROR_OK))
return retval;
/* wait for response, fixed timeout of 1 s */
if ((retval = embeddedice_handshake(ocl->jtag_info, EICE_COMM_CTRL_WBIT, 1000) != ERROR_OK))
{
if (retval == ERROR_TARGET_TIMEOUT)
LOG_ERROR("loader not responding");
return retval;
}
/* receive response */
if ((retval = embeddedice_receive(ocl->jtag_info, dcc_buffer, 1) != ERROR_OK))
return retval;
if (dcc_buffer[0] != OCL_CMD_DONE)
{
LOG_ERROR("loader response to OCL_PROBE 0x%08lX", dcc_buffer[0]);
return ERROR_FLASH_OPERATION_FAILED;
}
/* receive and fill in parameters, detection of loader is important, receive it one by one */
if ((retval = embeddedice_handshake(ocl->jtag_info, EICE_COMM_CTRL_WBIT, 0) != ERROR_OK)
|| (retval = embeddedice_receive(ocl->jtag_info, dcc_buffer, 1) != ERROR_OK))
return retval;
bank->base = dcc_buffer[0];
if ((retval = embeddedice_handshake(ocl->jtag_info, EICE_COMM_CTRL_WBIT, 0) != ERROR_OK)
|| (retval = embeddedice_receive(ocl->jtag_info, dcc_buffer, 1) != ERROR_OK))
return retval;
bank->size = dcc_buffer[0];
if ((retval = embeddedice_handshake(ocl->jtag_info, EICE_COMM_CTRL_WBIT, 0) != ERROR_OK)
|| (retval = embeddedice_receive(ocl->jtag_info, dcc_buffer, 1) != ERROR_OK))
return retval;
bank->num_sectors = dcc_buffer[0];
if ((retval = embeddedice_handshake(ocl->jtag_info, EICE_COMM_CTRL_WBIT, 0) != ERROR_OK)
|| (retval = embeddedice_receive(ocl->jtag_info, dcc_buffer, 1) != ERROR_OK))
return retval;
ocl->buflen = dcc_buffer[0] & 0xffff;
ocl->bufalign = dcc_buffer[0] >> 16;
bank->sectors = realloc(bank->sectors, sizeof(flash_sector_t)*bank->num_sectors);
if (bank->num_sectors == 0)
{
LOG_ERROR("number of sectors shall be non zero value");
return ERROR_FLASH_BANK_INVALID;
}
if (bank->size % bank->num_sectors) {
LOG_ERROR("bank size not divisible by number of sectors");
return ERROR_FLASH_BANK_INVALID;
}
sectsize = bank->size / bank->num_sectors;
for (i=0; i<bank->num_sectors; i++)
{
bank->sectors[i].offset = i * sectsize;
bank->sectors[i].size = sectsize;
bank->sectors[i].is_erased = -1;
bank->sectors[i].is_protected = -1;
}
if (ocl->bufalign == 0)
ocl->bufalign = 1;
if (ocl->buflen == 0)
{
LOG_ERROR("buflen shall be non zero value");
return ERROR_FLASH_BANK_INVALID;
}
if ((ocl->bufalign > ocl->buflen) || (ocl->buflen % ocl->bufalign))
{
LOG_ERROR("buflen is not multiple of bufalign");
return ERROR_FLASH_BANK_INVALID;
}
if (ocl->buflen % 4)
{
LOG_ERROR("buflen shall be divisible by 4");
return ERROR_FLASH_BANK_INVALID;
}
return ERROR_OK;
}
int ocl_info(struct flash_bank_s *bank, char *buf, int buf_size)
{
return ERROR_OK;
}
int ocl_auto_probe(struct flash_bank_s *bank)
{
ocl_priv_t *ocl = bank->driver_priv;
if (ocl->buflen == 0 || ocl->bufalign==0)
return ERROR_FLASH_BANK_NOT_PROBED;
return ERROR_OK;
}

+ 40
- 0
src/flash/ocl.h View File

@@ -0,0 +1,40 @@
/***************************************************************************
* Copyright (C) 2007 by Pavel Chromy *
* chromy@asix.cz *
* *
* 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. *
***************************************************************************/
#ifndef OCL_H
#define OCL_H
/* command/response mask */
#define OCL_CMD_MASK 0xFFFF0000L
/* commads */
#define OCL_FLASH_BLOCK 0x0CFB0000L
#define OCL_ERASE_BLOCK 0x0CEB0000L
#define OCL_ERASE_ALL 0x0CEA0000L
#define OCL_PROBE 0x0CBE0000L
/* responses */
#define OCL_CMD_DONE 0x0ACD0000L
#define OCL_CMD_ERR 0x0ACE0000L
#define OCL_CHKS_FAIL 0x0ACF0000L
#define OCL_BUFF_OVER 0x0AB00000L
#define OCL_CHKS_INIT 0xC100CD0CL
#endif /* OCL_H */

+ 4
- 0
src/flash/ocl/at91sam7x/at91sam7x_ocl_flash.script View File

@@ -0,0 +1,4 @@
soft_reset_halt
load_image at91sam7x_ocl.bin 0x200000
resume 0x200000
flash probe 0

+ 132
- 0
src/flash/ocl/at91sam7x/at91sam7x_ram.ld View File

@@ -0,0 +1,132 @@
/****************************************************************************
* Copyright (c) 2006 by Michael Fischer. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
****************************************************************************
*
* History:
*
* 30.03.06 mifi First Version
****************************************************************************/
ENTRY(ResetHandler)
SEARCH_DIR(.)
/*
* Define stack size here
*/
FIQ_STACK_SIZE = 0x0100;
IRQ_STACK_SIZE = 0x0100;
ABT_STACK_SIZE = 0x0100;
UND_STACK_SIZE = 0x0100;
SVC_STACK_SIZE = 0x0100;
MEMORY
{
ram : org = 0x00200000, len = 64k
}
/*
* Do not change the next code
*/
SECTIONS
{
.text :
{
*(.vectors);
. = ALIGN(4);
*(.init);
. = ALIGN(4);
*(.text);
. = ALIGN(4);
*(.rodata);
. = ALIGN(4);
*(.rodata*);
. = ALIGN(4);
*(.glue_7t);
. = ALIGN(4);
*(.glue_7);
. = ALIGN(4);
etext = .;
} > ram
.data :
{
PROVIDE (__data_start = .);
*(.data)
. = ALIGN(4);
edata = .;
_edata = .;
PROVIDE (__data_end = .);
} > ram
.bss :
{
PROVIDE (__bss_start = .);
*(.bss)
*(COMMON)
. = ALIGN(4);
PROVIDE (__bss_end = .);
. = ALIGN(256);
PROVIDE (__stack_start = .);
PROVIDE (__stack_fiq_start = .);
. += FIQ_STACK_SIZE;
. = ALIGN(4);
PROVIDE (__stack_fiq_end = .);
PROVIDE (__stack_irq_start = .);
. += IRQ_STACK_SIZE;
. = ALIGN(4);
PROVIDE (__stack_irq_end = .);
PROVIDE (__stack_abt_start = .);
. += ABT_STACK_SIZE;
. = ALIGN(4);
PROVIDE (__stack_abt_end = .);
PROVIDE (__stack_und_start = .);
. += UND_STACK_SIZE;
. = ALIGN(4);
PROVIDE (__stack_und_end = .);
PROVIDE (__stack_svc_start = .);
. += SVC_STACK_SIZE;
. = ALIGN(4);
PROVIDE (__stack_svc_end = .);
PROVIDE (__stack_end = .);
PROVIDE (__heap_start = .);
} > ram
}
/*** EOF ***/

+ 225
- 0
src/flash/ocl/at91sam7x/crt.s View File

@@ -0,0 +1,225 @@
/****************************************************************************
* Copyright (c) 2006 by Michael Fischer. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
****************************************************************************
*
* History:
*
* 18.12.06 mifi First Version
* The hardware initialization is based on the startup file
* crtat91sam7x256_rom.S from NutOS 4.2.1.
* Therefore partial copyright by egnite Software GmbH.
****************************************************************************/
/*
* Some defines for the program status registers
*/
ARM_MODE_USER = 0x10 /* Normal User Mode */
ARM_MODE_FIQ = 0x11 /* FIQ Fast Interrupts Mode */
ARM_MODE_IRQ = 0x12 /* IRQ Standard Interrupts Mode */
ARM_MODE_SVC = 0x13 /* Supervisor Interrupts Mode */
ARM_MODE_ABORT = 0x17 /* Abort Processing memory Faults Mode */
ARM_MODE_UNDEF = 0x1B /* Undefined Instructions Mode */
ARM_MODE_SYS = 0x1F /* System Running in Priviledged Operating Mode */
ARM_MODE_MASK = 0x1F
I_BIT = 0x80 /* disable IRQ when I bit is set */
F_BIT = 0x40 /* disable IRQ when I bit is set */
/*
* Register Base Address
*/
AIC_BASE = 0xFFFFF000
AIC_EOICR_OFF = 0x130
AIC_IDCR_OFF = 0x124
RSTC_MR = 0xFFFFFD08
RSTC_KEY = 0xA5000000
RSTC_URSTEN = 0x00000001
WDT_BASE = 0xFFFFFD40
WDT_MR_OFF = 0x00000004
WDT_WDDIS = 0x00008000
MC_BASE = 0xFFFFFF00
MC_FMR_OFF = 0x00000060
MC_FWS_1FWS = 0x00480100
.section .vectors,"ax"
.code 32
/****************************************************************************/
/* Vector table and reset entry */
/****************************************************************************/
_vectors:
ldr pc, ResetAddr /* Reset */
ldr pc, UndefAddr /* Undefined instruction */
ldr pc, SWIAddr /* Software interrupt */
ldr pc, PAbortAddr /* Prefetch abort */
ldr pc, DAbortAddr /* Data abort */
ldr pc, ReservedAddr /* Reserved */
ldr pc, IRQAddr /* IRQ interrupt */
ldr pc, FIQAddr /* FIQ interrupt */
ResetAddr: .word ResetHandler
UndefAddr: .word UndefHandler
SWIAddr: .word SWIHandler
PAbortAddr: .word PAbortHandler
DAbortAddr: .word DAbortHandler
ReservedAddr: .word 0
IRQAddr: .word IRQHandler
FIQAddr: .word FIQHandler
.ltorg
.section .init, "ax"
.code 32
.global ResetHandler
.global ExitFunction
.extern main
/****************************************************************************/
/* Reset handler */
/****************************************************************************/
ResetHandler:
/*
* The watchdog is enabled after processor reset. Disable it.
*/
ldr r1, =WDT_BASE
ldr r0, =WDT_WDDIS
str r0, [r1, #WDT_MR_OFF]
/*
* Enable user reset: assertion length programmed to 1ms
*/
ldr r0, =(RSTC_KEY | RSTC_URSTEN | (4 << 8))
ldr r1, =RSTC_MR
str r0, [r1, #0]
/*
* Use 2 cycles for flash access.
*/
ldr r1, =MC_BASE
ldr r0, =MC_FWS_1FWS
str r0, [r1, #MC_FMR_OFF]
/*
* Disable all interrupts. Useful for debugging w/o target reset.
*/
ldr r1, =AIC_BASE
mvn r0, #0
str r0, [r1, #AIC_EOICR_OFF]
str r0, [r1, #AIC_IDCR_OFF]
/*
* Setup a stack for each mode
*/
msr CPSR_c, #ARM_MODE_UNDEF | I_BIT | F_BIT /* Undefined Instruction Mode */
ldr sp, =__stack_und_end
msr CPSR_c, #ARM_MODE_ABORT | I_BIT | F_BIT /* Abort Mode */
ldr sp, =__stack_abt_end
msr CPSR_c, #ARM_MODE_FIQ | I_BIT | F_BIT /* FIQ Mode */
ldr sp, =__stack_fiq_end
msr CPSR_c, #ARM_MODE_IRQ | I_BIT | F_BIT /* IRQ Mode */
ldr sp, =__stack_irq_end
msr CPSR_c, #ARM_MODE_SVC | I_BIT | F_BIT /* Supervisor Mode */
ldr sp, =__stack_svc_end
/*
* Clear .bss section
*/
ldr r1, =__bss_start
ldr r2, =__bss_end
ldr r3, =0
bss_clear_loop:
cmp r1, r2
strne r3, [r1], #+4
bne bss_clear_loop
/*
* Jump to main
*/
mrs r0, cpsr
bic r0, r0, #I_BIT | F_BIT /* Enable FIQ and IRQ interrupt */
msr cpsr, r0
mov r0, #0 /* No arguments */
mov r1, #0 /* No arguments */
ldr r2, =main
mov lr, pc
bx r2 /* And jump... */
ExitFunction:
nop
nop
nop
b ExitFunction
/****************************************************************************/
/* Default interrupt handler */
/****************************************************************************/
UndefHandler:
b UndefHandler
SWIHandler:
b SWIHandler
PAbortHandler:
b PAbortHandler
DAbortHandler:
b DAbortHandler
IRQHandler:
b IRQHandler
FIQHandler:
b FIQHandler
.weak ExitFunction
.weak UndefHandler, PAbortHandler, DAbortHandler
.weak IRQHandler, FIQHandler
.ltorg
/*** EOF ***/
Index: src/flash/ocl/at91sam7x/dcc.c

+ 51
- 0
src/flash/ocl/at91sam7x/dcc.c View File

@@ -0,0 +1,51 @@
/***************************************************************************
* Copyright (C) 2007 by Pavel Chromy *
* chromy@asix.cz *
* *
* 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. *
***************************************************************************/
#include "dcc.h"
/* debug channel read (debugger->MCU) */
uint32 dcc_rd(void)
{
volatile uint32 dcc_reg;
do {
asm volatile ("mrc p14, 0, %0, C0, C0" : "=r" (dcc_reg) : );
} while ((dcc_reg&1)==0);
asm volatile ("mrc p14, 0, %0, C1, C0" : "=r" (dcc_reg) : );
return dcc_reg;
}
/* debug channel write (MCU->debugger) */
int dcc_wr(uint32 data)
{
volatile uint32 dcc_reg;
do {
asm volatile ("mrc p14, 0, %0, C0, C0" : "=r" (dcc_reg) : );
/* operation controled by master, cancel operation
upon reception of data for immediate response */
if (dcc_reg&1) return -1;
} while (dcc_reg&2);
asm volatile ("mcr p14, 0, %0, C1, C0" : : "r" (data));
return 0;
}

+ 31
- 0
src/flash/ocl/at91sam7x/dcc.h View File

@@ -0,0 +1,31 @@
/***************************************************************************
* Copyright (C) 2007 by Pavel Chromy *
* chromy@asix.cz *
* *
* 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. *
***************************************************************************/
#ifndef dccH
#define dccH
#include "platform.h"
/* debug channel read (debugger->MCU) */
extern uint32 dcc_rd(void);
/* debug channel write (MCU->debugger) */
extern int dcc_wr(uint32 data);
#endif

+ 107
- 0
src/flash/ocl/at91sam7x/main.c View File

@@ -0,0 +1,107 @@
/***************************************************************************
* Copyright (C) 2007 by Pavel Chromy *
* chromy@asix.cz *
* *
* 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. *
***************************************************************************/
#include "platform.h"
#include "ocl.h"
#include "dcc.h"
#include "samflash.h"
#define BUFSIZE 1024 /* words, i.e. 4 KiB */
uint32 buffer[1024];
void cmd_flash(uint32 cmd)
{
unsigned int len;
uint32 adr;
uint32 chksum;
unsigned int bi; /* buffer index */
unsigned int bi_start; /* receive start mark */
unsigned int bi_end; /* receive end mark */
unsigned int ofs;
int pagenum;
int result;
adr=dcc_rd();
len=cmd&0xffff;
ofs=adr%flash_page_size;
bi_start=ofs/4;
bi_end=(ofs+len+3)/4;
if (bi_end>BUFSIZE) {
dcc_wr(OCL_BUFF_OVER);
return;
}
chksum=OCL_CHKS_INIT;
for (bi=0; bi<bi_end; bi++) chksum^=buffer[bi]=dcc_rd();
if (dcc_rd()!=chksum) {
dcc_wr(OCL_CHKS_FAIL);
return;
}
/* fill in unused positions with unprogrammed values */
for (bi=0; bi<bi_start; bi++) buffer[bi]=0xffffffff;
for (bi=bi_end; bi%flash_page_size; bi++) buffer[bi]=0xffffffff;
result=0;
pagenum=adr/flash_page_size;
for (bi=0; bi<bi_end; bi+=flash_page_size/4) {
result=flash_page_program(buffer+bi, pagenum++);
if (result) break;
}
/* verify written data */
if (!result) result=flash_verify(adr, len, ((uint8 *)buffer)+ofs);
dcc_wr(OCL_CMD_DONE|result);
}
int main (void)
{
uint32 cmd;
for (;;) {
cmd=dcc_rd();
switch (cmd&OCL_CMD_MASK) {
case OCL_PROBE:
dcc_wr(OCL_CMD_DONE|flash_init());
dcc_wr(0x100000); /* base */
dcc_wr(flash_page_count*flash_page_size); /* size */
dcc_wr(1); /* num_sectors */
dcc_wr(4096 | ((unsigned long) flash_page_size<<16)); /* buflen and bufalign */
break;
case OCL_ERASE_ALL:
dcc_wr(OCL_CMD_DONE|flash_erase_all());
break;
case OCL_FLASH_BLOCK:
cmd_flash(cmd);
break;
default:
/* unknown command */
dcc_wr(OCL_CMD_ERR);
break;
}
}
return(0); /* we shall never get here, just to supress compiler warning */
}

+ 130
- 0
src/flash/ocl/at91sam7x/makefile View File

@@ -0,0 +1,130 @@
##############################################################################################
# Start of default section
#
TRGT = arm-elf-
CC = $(TRGT)gcc
CP = $(TRGT)objcopy
AS = $(TRGT)gcc -x assembler-with-cpp
HEX = $(CP) -O ihex
BIN = $(CP) -O binary
OBJDUMP = $(TRGT)objdump
MCU = arm7tdmi
# List all default C defines here, like -D_DEBUG=1
DDEFS =
# List all default ASM defines here, like -D_DEBUG=1
DADEFS =
# List all default directories to look for include files here
DINCDIR =
# List the default directory to look for the libraries here
DLIBDIR =
# List all default libraries here
DLIBS =
#
# End of default section
##############################################################################################
##############################################################################################
# Start of user section
#
# Define project name here
PROJECT = at91sam7x_ocl
# Define linker script file here
LDSCRIPT= at91sam7x_ram.ld
# List all user C define here, like -D_DEBUG=1
UDEFS =
# Define ASM defines here
UADEFS =
# List C source files here
SRC = main.c dcc.c samflash.c
# List ASM source files here
ASRC = crt.s
# List all user directories here
UINCDIR =
# List the user directory to look for the libraries here
ULIBDIR =
# List all user libraries here
ULIBS =
# Define optimisation level here
OPT = -O2
#
# End of user defines
##############################################################################################
INCDIR = $(patsubst %,-I%,$(DINCDIR) $(UINCDIR))
LIBDIR = $(patsubst %,-L%,$(DLIBDIR) $(ULIBDIR))
DEFS = $(DDEFS) $(UDEFS)
ADEFS = $(DADEFS) $(UADEFS)
OBJS = $(ASRC:.s=.o) $(SRC:.c=.o)
LIBS = $(DLIBS) $(ULIBS)
MCFLAGS = -mcpu=$(MCU)
ASFLAGS = $(MCFLAGS) -g -gdwarf-2 -Wa,-amhls=$(<:.s=.lst) $(ADEFS)
CPFLAGS = $(MCFLAGS) $(OPT) -gdwarf-2 -mthumb-interwork -fomit-frame-pointer -Wall -Wstrict-prototypes -fverbose-asm -Wa,-ahlms=$(<:.c=.lst) $(DEFS)
LDFLAGS = $(MCFLAGS) -nostartfiles -T$(LDSCRIPT) -Wl,-Map=$(PROJECT).map,--cref,--no-warn-mismatch $(LIBDIR)
# Generate dependency information
#CPFLAGS += -MD -MP -MF .dep/$(@F).d
#
# makefile rules
#
all: $(OBJS) $(PROJECT).elf $(PROJECT).hex $(PROJECT).bin $(PROJECT).lst
%o : %c
$(CC) -c $(CPFLAGS) -I . $(INCDIR) $< -o $@
%o : %s
$(AS) -c $(ASFLAGS) $< -o $@
%elf: $(OBJS)
$(CC) $(OBJS) $(LDFLAGS) $(LIBS) -o $@
%hex: %elf
$(HEX) $< $@
%bin: %elf
$(BIN) $< $@
%.lst: %.elf
$(OBJDUMP) -h -S $< > $@
clean:
-rm -f $(OBJS)
-rm -f $(PROJECT).elf
-rm -f $(PROJECT).map
-rm -f $(PROJECT).hex
-rm -f $(PROJECT).bin
-rm -f $(PROJECT).lst
-rm -f $(SRC:.c=.c.bak)
-rm -f $(SRC:.c=.lst)
-rm -f $(ASRC:.s=.s.bak)
-rm -f $(ASRC:.s=.lst)
-rm -fR .dep
#
# Include the dependency files, should be the last of the makefile
#
#-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
# *** EOF ***

+ 40
- 0
src/flash/ocl/at91sam7x/ocl.h View File

@@ -0,0 +1,40 @@
/***************************************************************************
* Copyright (C) 2007 by Pavel Chromy *
* chromy@asix.cz *
* *
* 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. *
***************************************************************************/
#ifndef OCL_H
#define OCL_H
/* command/response mask */
#define OCL_CMD_MASK 0xFFFF0000L
/* commads */
#define OCL_FLASH_BLOCK 0x0CFB0000L
#define OCL_ERASE_BLOCK 0x0CEB0000L
#define OCL_ERASE_ALL 0x0CEA0000L
#define OCL_PROBE 0x0CBE0000L
/* responses */
#define OCL_CMD_DONE 0x0ACD0000L
#define OCL_CMD_ERR 0x0ACE0000L
#define OCL_CHKS_FAIL 0x0ACF0000L
#define OCL_BUFF_OVER 0x0AB00000L
#define OCL_CHKS_INIT 0xC100CD0CL
#endif /* OCL_H */

+ 46
- 0
src/flash/ocl/at91sam7x/platform.h View File

@@ -0,0 +1,46 @@
/***************************************************************************
* Copyright (C) 2007 by Pavel Chromy *
* chromy@asix.cz *
* *
* 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. *
***************************************************************************/
#ifndef platformH
#define platformH
#include "samregs.h"
#define outb(_reg, _val) (*((volatile unsigned char *)(_reg)) = (_val))
#define outw(_reg, _val) (*((volatile unsigned short *)(_reg)) = (_val))
#define outr(_reg, _val) (*((volatile unsigned int *)(_reg)) = (_val))
#define inb(_reg) (*((volatile unsigned char *)(_reg)))
#define inw(_reg) (*((volatile unsigned short *)(_reg)))
#define inr(_reg) (*((volatile unsigned int *)(_reg)))
#define _BV(bit) (1 << (bit))
typedef signed char int8;
typedef unsigned char uint8;
typedef signed short int16;
typedef unsigned short uint16;
typedef signed int int32;
typedef unsigned int uint32;
#endif

+ 196
- 0
src/flash/ocl/at91sam7x/samflash.c View File

@@ -0,0 +1,196 @@
/***************************************************************************
* Copyright (C) 2007 by Pavel Chromy *
* chromy@asix.cz *
* *
* 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. *
***************************************************************************/
#include "samflash.h"
unsigned int flash_page_count=1024;
unsigned int flash_page_size=256;
/* pages per lock bit */
unsigned int flash_lock_pages=1024/16;
/* detect chip and set loader parameters */
int flash_init(void)
{
unsigned int nvpsiz;
nvpsiz=(inr(DBGU_CIDR)>>8)&0xf;
switch (nvpsiz) {
case 3:
/* AT91SAM7x32 */
flash_page_count=256;
flash_page_size=128;
flash_lock_pages=256/8;
break;
case 5:
/* AT91SAM7x64 */
flash_page_count=512;
flash_page_size=128;
flash_lock_pages=512/16;
break;
case 7:
/* AT91SAM7x128*/
flash_page_count=512;
flash_page_size=256;
flash_lock_pages=512/8;
break;
case 9:
/* AT91SAM7x256 */
flash_page_count=1024;
flash_page_size=256;
flash_lock_pages=1024/16;
break;
case 10:
/* AT91SAM7x512 */
flash_page_count=2048;
flash_page_size=256;
flash_lock_pages=2048/32;
break;
default:
return FLASH_STAT_INITE;
}
return FLASH_STAT_OK;
}
/* program single flash page */
int flash_page_program(uint32 *data, int page_num)
{
int i;
int efc_ofs;
uint32 *flash_ptr;
uint32 *data_ptr;
/* select proper controller */
if (page_num>=1024) efc_ofs=0x10;
else efc_ofs=0;
/* wait until FLASH is ready, just for sure */
while ((inr(MC_FSR+efc_ofs)&MC_FRDY)==0);
/* calculate page address, only lower 8 bits are used to address the latch,
but the upper part of address is needed for writing to proper EFC */
flash_ptr=(uint32 *)(FLASH_AREA_ADDR+(page_num*flash_page_size));
data_ptr=data;
/* copy data to latch */
for (i=flash_page_size/4; i; i--) {
/* we do not use memcpy to be sure that only 32 bit access is used */
*(flash_ptr++)=*(data_ptr++);
}
/* page number and page write command to FCR */
outr(MC_FCR+efc_ofs, ((page_num&0x3ff)<<8) | MC_KEY | MC_FCMD_WP);
/* wait until it's done */
while ((inr(MC_FSR+efc_ofs)&MC_FRDY)==0);
/* check for errors */
if ((inr(MC_FSR+efc_ofs)&MC_PROGE)) return FLASH_STAT_PROGE;
if ((inr(MC_FSR+efc_ofs)&MC_LOCKE)) return FLASH_STAT_LOCKE;
#if 0
/* verify written data */
flash_ptr=(uint32 *)(FLASH_AREA_ADDR+(page_num*flash_page_size));
data_ptr=data;
for (i=flash_page_size/4; i; i--) {
if (*(flash_ptr++)!=*(data_ptr++)) return FLASH_STAT_VERIFE;
}
#endif
return FLASH_STAT_OK;
}
int flash_erase_plane(int efc_ofs)
{
unsigned int lockbits;
int page_num;
page_num=0;
lockbits=inr(MC_FSR+efc_ofs)>>16;
while (lockbits) {
if (lockbits&1) {
/* wait until FLASH is ready, just for sure */
while ((inr(MC_FSR+efc_ofs)&MC_FRDY)==0);
outr(MC_FCR+efc_ofs, ((page_num&0x3ff)<<8) | 0x5a000004);
/* wait until it's done */
while ((inr(MC_FSR+efc_ofs)&MC_FRDY)==0);
/* check for errors */
if ((inr(MC_FSR+efc_ofs)&MC_PROGE)) return FLASH_STAT_PROGE;
if ((inr(MC_FSR+efc_ofs)&MC_LOCKE)) return FLASH_STAT_LOCKE;
}
if ((page_num+=flash_lock_pages)>flash_page_count) break;
lockbits>>=1;
}
/* wait until FLASH is ready, just for sure */
while ((inr(MC_FSR+efc_ofs)&MC_FRDY)==0);
/* erase all command to FCR */
outr(MC_FCR+efc_ofs, 0x5a000008);
/* wait until it's done */
while ((inr(MC_FSR+efc_ofs)&MC_FRDY)==0);
/* check for errors */
if ((inr(MC_FSR+efc_ofs)&MC_PROGE)) return FLASH_STAT_PROGE;
if ((inr(MC_FSR+efc_ofs)&MC_LOCKE)) return FLASH_STAT_LOCKE;
/* set no erase before programming */
outr(MC_FMR+efc_ofs, inr(MC_FMR+efc_ofs)|0x80);
return FLASH_STAT_OK;
}
/* erase whole chip */
int flash_erase_all(void)
{
int result;
if ((result=flash_erase_plane(0))!=FLASH_STAT_OK) return result;
/* the second flash controller, if any */
if (flash_page_count>1024) result=flash_erase_plane(0x10);
return result;
}
int flash_verify(uint32 adr, unsigned int len, uint8 *src)
{
unsigned char *flash_ptr;
flash_ptr=(uint8 *)FLASH_AREA_ADDR+adr;
for ( ;len; len--) {
if (*(flash_ptr++)!=*(src++)) return FLASH_STAT_VERIFE;
}
return FLASH_STAT_OK;
}

+ 48
- 0
src/flash/ocl/at91sam7x/samflash.h View File

@@ -0,0 +1,48 @@
/***************************************************************************
* Copyright (C) 2007 by Pavel Chromy *
* chromy@asix.cz *
* *
* 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. *
***************************************************************************/
#ifndef samflashH
#define samflashH
#include "platform.h"
#define FLASH_AREA_ADDR 0x100000
#define FLASH_STAT_OK 0
#define FLASH_STAT_PROGE 1
#define FLASH_STAT_LOCKE 2
#define FLASH_STAT_VERIFE 3
#define FLASH_STAT_INITE 4
extern unsigned int flash_page_count;
extern unsigned int flash_page_size; /* words */
/* detect chip and set loader parameters */
extern int flash_init(void);
/* program single flash page */
extern int flash_page_program(uint32 *data, int page_num);
/* erase whole chip */
extern int flash_erase_all(void);
/* verify written data */
extern int flash_verify(uint32 adr, unsigned int len, uint8 *src);
#endif

+ 83
- 0
src/flash/ocl/at91sam7x/samregs.h View File

@@ -0,0 +1,83 @@
/*
* Copyright (C) 2005-2006 by egnite Software GmbH. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY EGNITE SOFTWARE GMBH AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL EGNITE
* SOFTWARE GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* For additional information see http://www.ethernut.de/
*/
#ifndef samregsH
#define samregsH
/*
* Register definitions below copied from NutOS
*/
#define DBGU_BASE 0xFFFFF200 /*!< \brief DBGU base address. */
#define DBGU_CIDR_OFF 0x00000040 /*!< \brief DBGU chip ID register offset. */
#define DBGU_CIDR (DBGU_BASE + DBGU_CIDR_OFF) /*!< \brief DBGU chip ID register. */
#define MC_BASE 0xFFFFFF00 /*!< \brief Memory controller base. */
#define MC_FMR_OFF 0x00000060 /*!< \brief MC flash mode register offset. */
#define MC_FMR (MC_BASE + MC_FMR_OFF) /*!< \brief MC flash mode register address. */
#define MC_FRDY 0x00000001 /*!< \brief Flash ready. */
#define MC_LOCKE 0x00000004 /*!< \brief Lock error. */
#define MC_PROGE 0x00000008 /*!< \brief Programming error. */
#define MC_NEBP 0x00000080 /*!< \brief No erase before programming. */
#define MC_FWS_MASK 0x00000300 /*!< \brief Flash wait state mask. */
#define MC_FWS_1R2W 0x00000000 /*!< \brief 1 cycle for read, 2 for write operations. */
#define MC_FWS_2R3W 0x00000100 /*!< \brief 2 cycles for read, 3 for write operations. */
#define MC_FWS_3R4W 0x00000200 /*!< \brief 3 cycles for read, 4 for write operations. */
#define MC_FWS_4R4W 0x00000300 /*!< \brief 4 cycles for read and write operations. */
#define MC_FMCN_MASK 0x00FF0000 /*!< \brief Flash microsecond cycle number mask. */
#define MC_FCR_OFF 0x00000064 /*!< \brief MC flash command register offset. */
#define MC_FCR (MC_BASE + MC_FCR_OFF) /*!< \brief MC flash command register address. */
#define MC_FCMD_MASK 0x0000000F /*!< \brief Flash command mask. */
#define MC_FCMD_NOP 0x00000000 /*!< \brief No command. */
#define MC_FCMD_WP 0x00000001 /*!< \brief Write page. */
#define MC_FCMD_SLB 0x00000002 /*!< \brief Set lock bit. */
#define MC_FCMD_WPL 0x00000003 /*!< \brief Write page and lock. */
#define MC_FCMD_CLB 0x00000004 /*!< \brief Clear lock bit. */
#define MC_FCMD_EA 0x00000008 /*!< \brief Erase all. */
#define MC_FCMD_SGPB 0x0000000B /*!< \brief Set general purpose NVM bit. */
#define MC_FCMD_CGPB 0x0000000D /*!< \brief Clear general purpose NVM bit. */
#define MC_FCMD_SSB 0x0000000F /*!< \brief Set security bit. */
#define MC_PAGEN_MASK 0x0003FF00 /*!< \brief Page number mask. */
#define MC_KEY 0x5A000000 /*!< \brief Writing protect key. */
#define MC_FSR_OFF 0x00000068 /*!< \brief MC flash status register offset. */
#define MC_FSR (MC_BASE + MC_FSR_OFF) /*!< \brief MC flash status register address. */
#define MC_SECURITY 0x00000010 /*!< \brief Security bit status. */
#endif

+ 1
- 0
src/target/target.h View File

@@ -331,5 +331,6 @@ int target_arch_state(struct target_s *target);
#define ERROR_TARGET_DATA_ABORT (-307)
#define ERROR_TARGET_RESOURCE_NOT_AVAILABLE (-308)
#define ERROR_TARGET_TRANSLATION_FAULT (-309)
#define ERROR_TARGET_NOT_RUNNING (-310)

#endif /* TARGET_H */

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