mirror of
https://github.com/Fishwaldo/u-boot.git
synced 2025-03-21 14:41:31 +00:00
ColdFire: Use CFI driver for M5272C3
Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
This commit is contained in:
TsiChung Liew
John Rigby
parent
f3962d3f57
commit
b202816c61
3 changed files with 11 additions and 383 deletions
|
|
@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
|
|||
|
||||
LIB = $(obj)lib$(BOARD).a
|
||||
|
||||
COBJS = $(BOARD).o flash.o
|
||||
COBJS = $(BOARD).o
|
||||
|
||||
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
|
||||
OBJS := $(addprefix $(obj),$(COBJS))
|
||||
|
|
|
|||
|
|
@ -1,378 +0,0 @@
|
|||
/*
|
||||
* (C) Copyright 2000-2003
|
||||
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
||||
*
|
||||
* See file CREDITS for list of people who contributed to this
|
||||
* project.
|
||||
*
|
||||
* 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 <common.h>
|
||||
|
||||
#define PHYS_FLASH_1 CONFIG_SYS_FLASH_BASE
|
||||
#define FLASH_BANK_SIZE 0x200000
|
||||
|
||||
flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
|
||||
|
||||
void flash_print_info (flash_info_t * info)
|
||||
{
|
||||
int i;
|
||||
|
||||
switch (info->flash_id & FLASH_VENDMASK) {
|
||||
case (AMD_MANUFACT & FLASH_VENDMASK):
|
||||
printf ("AMD: ");
|
||||
break;
|
||||
default:
|
||||
printf ("Unknown Vendor ");
|
||||
break;
|
||||
}
|
||||
|
||||
switch (info->flash_id & FLASH_TYPEMASK) {
|
||||
case (AMD_ID_PL160CB & FLASH_TYPEMASK):
|
||||
printf ("AM29PL160CB (16Mbit)\n");
|
||||
break;
|
||||
default:
|
||||
printf ("Unknown Chip Type\n");
|
||||
goto Done;
|
||||
break;
|
||||
}
|
||||
|
||||
printf (" Size: %ld MB in %d Sectors\n",
|
||||
info->size >> 20, info->sector_count);
|
||||
|
||||
printf (" Sector Start Addresses:");
|
||||
for (i = 0; i < info->sector_count; i++) {
|
||||
if ((i % 5) == 0) {
|
||||
printf ("\n ");
|
||||
}
|
||||
printf (" %08lX%s", info->start[i],
|
||||
info->protect[i] ? " (RO)" : " ");
|
||||
}
|
||||
printf ("\n");
|
||||
|
||||
Done:
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
unsigned long flash_init (void)
|
||||
{
|
||||
int i, j;
|
||||
ulong size = 0;
|
||||
|
||||
for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
|
||||
ulong flashbase = 0;
|
||||
|
||||
flash_info[i].flash_id =
|
||||
(AMD_MANUFACT & FLASH_VENDMASK) |
|
||||
(AMD_ID_PL160CB & FLASH_TYPEMASK);
|
||||
flash_info[i].size = FLASH_BANK_SIZE;
|
||||
flash_info[i].sector_count = CONFIG_SYS_MAX_FLASH_SECT;
|
||||
memset (flash_info[i].protect, 0, CONFIG_SYS_MAX_FLASH_SECT);
|
||||
if (i == 0)
|
||||
flashbase = PHYS_FLASH_1;
|
||||
else
|
||||
panic ("configured to many flash banks!\n");
|
||||
|
||||
for (j = 0; j < flash_info[i].sector_count; j++) {
|
||||
if (j == 0) {
|
||||
/* 1st is 16 KiB */
|
||||
flash_info[i].start[j] = flashbase;
|
||||
}
|
||||
if ((j >= 1) && (j <= 2)) {
|
||||
/* 2nd and 3rd are 8 KiB */
|
||||
flash_info[i].start[j] =
|
||||
flashbase + 0x4000 + 0x2000 * (j - 1);
|
||||
}
|
||||
if (j == 3) {
|
||||
/* 4th is 224 KiB */
|
||||
flash_info[i].start[j] = flashbase + 0x8000;
|
||||
}
|
||||
if ((j >= 4) && (j <= 10)) {
|
||||
/* rest is 256 KiB */
|
||||
flash_info[i].start[j] =
|
||||
flashbase + 0x40000 + 0x40000 * (j -
|
||||
4);
|
||||
}
|
||||
}
|
||||
size += flash_info[i].size;
|
||||
}
|
||||
|
||||
flash_protect (FLAG_PROTECT_SET,
|
||||
CONFIG_SYS_FLASH_BASE,
|
||||
CONFIG_SYS_FLASH_BASE + 0x3ffff, &flash_info[0]);
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
|
||||
#define CMD_READ_ARRAY 0x00F0
|
||||
#define CMD_UNLOCK1 0x00AA
|
||||
#define CMD_UNLOCK2 0x0055
|
||||
#define CMD_ERASE_SETUP 0x0080
|
||||
#define CMD_ERASE_CONFIRM 0x0030
|
||||
#define CMD_PROGRAM 0x00A0
|
||||
#define CMD_UNLOCK_BYPASS 0x0020
|
||||
|
||||
#define MEM_FLASH_ADDR1 (*(volatile u16 *)(CONFIG_SYS_FLASH_BASE + (0x00000555<<1)))
|
||||
#define MEM_FLASH_ADDR2 (*(volatile u16 *)(CONFIG_SYS_FLASH_BASE + (0x000002AA<<1)))
|
||||
|
||||
#define BIT_ERASE_DONE 0x0080
|
||||
#define BIT_RDY_MASK 0x0080
|
||||
#define BIT_PROGRAM_ERROR 0x0020
|
||||
#define BIT_TIMEOUT 0x80000000 /* our flag */
|
||||
|
||||
#define READY 1
|
||||
#define ERR 2
|
||||
#define TMO 4
|
||||
|
||||
|
||||
int flash_erase (flash_info_t * info, int s_first, int s_last)
|
||||
{
|
||||
ulong result;
|
||||
int iflag, cflag, prot, sect;
|
||||
int rc = ERR_OK;
|
||||
int chip1;
|
||||
|
||||
/* first look for protection bits */
|
||||
|
||||
if (info->flash_id == FLASH_UNKNOWN)
|
||||
return ERR_UNKNOWN_FLASH_TYPE;
|
||||
|
||||
if ((s_first < 0) || (s_first > s_last)) {
|
||||
return ERR_INVAL;
|
||||
}
|
||||
|
||||
if ((info->flash_id & FLASH_VENDMASK) !=
|
||||
(AMD_MANUFACT & FLASH_VENDMASK)) {
|
||||
return ERR_UNKNOWN_FLASH_VENDOR;
|
||||
}
|
||||
|
||||
prot = 0;
|
||||
for (sect = s_first; sect <= s_last; ++sect) {
|
||||
if (info->protect[sect]) {
|
||||
prot++;
|
||||
}
|
||||
}
|
||||
if (prot)
|
||||
return ERR_PROTECTED;
|
||||
|
||||
/*
|
||||
* Disable interrupts which might cause a timeout
|
||||
* here. Remember that our exception vectors are
|
||||
* at address 0 in the flash, and we don't want a
|
||||
* (ticker) exception to happen while the flash
|
||||
* chip is in programming mode.
|
||||
*/
|
||||
|
||||
cflag = icache_status ();
|
||||
icache_disable ();
|
||||
iflag = disable_interrupts ();
|
||||
|
||||
printf ("\n");
|
||||
|
||||
/* Start erase on unprotected sectors */
|
||||
for (sect = s_first; sect <= s_last && !ctrlc (); sect++) {
|
||||
printf ("Erasing sector %2d ... ", sect);
|
||||
|
||||
/* arm simple, non interrupt dependent timer */
|
||||
set_timer (0);
|
||||
|
||||
if (info->protect[sect] == 0) { /* not protected */
|
||||
volatile u16 *addr =
|
||||
(volatile u16 *) (info->start[sect]);
|
||||
|
||||
MEM_FLASH_ADDR1 = CMD_UNLOCK1;
|
||||
MEM_FLASH_ADDR2 = CMD_UNLOCK2;
|
||||
MEM_FLASH_ADDR1 = CMD_ERASE_SETUP;
|
||||
|
||||
MEM_FLASH_ADDR1 = CMD_UNLOCK1;
|
||||
MEM_FLASH_ADDR2 = CMD_UNLOCK2;
|
||||
*addr = CMD_ERASE_CONFIRM;
|
||||
|
||||
/* wait until flash is ready */
|
||||
chip1 = 0;
|
||||
|
||||
do {
|
||||
result = *addr;
|
||||
|
||||
/* check timeout */
|
||||
if (get_timer (0) > CONFIG_SYS_FLASH_ERASE_TOUT) {
|
||||
MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
|
||||
chip1 = TMO;
|
||||
break;
|
||||
}
|
||||
|
||||
if (!chip1
|
||||
&& (result & 0xFFFF) & BIT_ERASE_DONE)
|
||||
chip1 = READY;
|
||||
|
||||
} while (!chip1);
|
||||
|
||||
MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
|
||||
|
||||
if (chip1 == ERR) {
|
||||
rc = ERR_PROG_ERROR;
|
||||
goto outahere;
|
||||
}
|
||||
if (chip1 == TMO) {
|
||||
rc = ERR_TIMOUT;
|
||||
goto outahere;
|
||||
}
|
||||
|
||||
printf ("ok.\n");
|
||||
} else { /* it was protected */
|
||||
|
||||
printf ("protected!\n");
|
||||
}
|
||||
}
|
||||
|
||||
if (ctrlc ())
|
||||
printf ("User Interrupt!\n");
|
||||
|
||||
outahere:
|
||||
/* allow flash to settle - wait 10 ms */
|
||||
udelay (10000);
|
||||
|
||||
if (iflag)
|
||||
enable_interrupts ();
|
||||
|
||||
if (cflag)
|
||||
icache_enable ();
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int write_word (flash_info_t * info, ulong dest, ulong data)
|
||||
{
|
||||
volatile u16 *addr = (volatile u16 *) dest;
|
||||
ulong result;
|
||||
int rc = ERR_OK;
|
||||
int cflag, iflag;
|
||||
int chip1;
|
||||
|
||||
/*
|
||||
* Check if Flash is (sufficiently) erased
|
||||
*/
|
||||
result = *addr;
|
||||
if ((result & data) != data)
|
||||
return ERR_NOT_ERASED;
|
||||
|
||||
|
||||
/*
|
||||
* Disable interrupts which might cause a timeout
|
||||
* here. Remember that our exception vectors are
|
||||
* at address 0 in the flash, and we don't want a
|
||||
* (ticker) exception to happen while the flash
|
||||
* chip is in programming mode.
|
||||
*/
|
||||
|
||||
cflag = icache_status ();
|
||||
icache_disable ();
|
||||
iflag = disable_interrupts ();
|
||||
|
||||
MEM_FLASH_ADDR1 = CMD_UNLOCK1;
|
||||
MEM_FLASH_ADDR2 = CMD_UNLOCK2;
|
||||
MEM_FLASH_ADDR1 = CMD_PROGRAM;
|
||||
*addr = data;
|
||||
|
||||
/* arm simple, non interrupt dependent timer */
|
||||
set_timer (0);
|
||||
|
||||
/* wait until flash is ready */
|
||||
chip1 = 0;
|
||||
do {
|
||||
result = *addr;
|
||||
|
||||
/* check timeout */
|
||||
if (get_timer (0) > CONFIG_SYS_FLASH_ERASE_TOUT) {
|
||||
chip1 = ERR | TMO;
|
||||
break;
|
||||
}
|
||||
if (!chip1 && ((result & 0x80) == (data & 0x80)))
|
||||
chip1 = READY;
|
||||
|
||||
} while (!chip1);
|
||||
|
||||
*addr = CMD_READ_ARRAY;
|
||||
|
||||
if (chip1 == ERR || *addr != data)
|
||||
rc = ERR_PROG_ERROR;
|
||||
|
||||
if (iflag)
|
||||
enable_interrupts ();
|
||||
|
||||
if (cflag)
|
||||
icache_enable ();
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
|
||||
int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
|
||||
{
|
||||
ulong wp, data;
|
||||
int rc;
|
||||
|
||||
if (addr & 1) {
|
||||
printf ("unaligned destination not supported\n");
|
||||
return ERR_ALIGN;
|
||||
}
|
||||
|
||||
#if 0
|
||||
if (cnt & 1) {
|
||||
printf ("odd transfer sizes not supported\n");
|
||||
return ERR_ALIGN;
|
||||
}
|
||||
#endif
|
||||
|
||||
wp = addr;
|
||||
|
||||
if (addr & 1) {
|
||||
data = (*((volatile u8 *) addr) << 8) | *((volatile u8 *)
|
||||
src);
|
||||
if ((rc = write_word (info, wp - 1, data)) != 0) {
|
||||
return (rc);
|
||||
}
|
||||
src += 1;
|
||||
wp += 1;
|
||||
cnt -= 1;
|
||||
}
|
||||
|
||||
while (cnt >= 2) {
|
||||
data = *((volatile u16 *) src);
|
||||
if ((rc = write_word (info, wp, data)) != 0) {
|
||||
return (rc);
|
||||
}
|
||||
src += 2;
|
||||
wp += 2;
|
||||
cnt -= 2;
|
||||
}
|
||||
|
||||
if (cnt == 1) {
|
||||
data = (*((volatile u8 *) src) << 8) |
|
||||
*((volatile u8 *) (wp + 1));
|
||||
if ((rc = write_word (info, wp, data)) != 0) {
|
||||
return (rc);
|
||||
}
|
||||
src += 1;
|
||||
wp += 1;
|
||||
cnt -= 1;
|
||||
}
|
||||
|
||||
return ERR_OK;
|
||||
}
|
||||
|
|
@ -194,12 +194,18 @@
|
|||
*/
|
||||
#define CONFIG_SYS_BOOTMAPSZ (CONFIG_SYS_SDRAM_BASE + (CONFIG_SYS_SDRAM_SIZE << 20))
|
||||
|
||||
/*-----------------------------------------------------------------------
|
||||
/*
|
||||
* FLASH organization
|
||||
*/
|
||||
#define CONFIG_SYS_FLASH_CFI
|
||||
#ifdef CONFIG_SYS_FLASH_CFI
|
||||
# define CONFIG_FLASH_CFI_DRIVER 1
|
||||
# define CONFIG_SYS_FLASH_SIZE 0x800000 /* Max size that the board might have */
|
||||
# define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_16BIT
|
||||
# define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of memory banks */
|
||||
#define CONFIG_SYS_MAX_FLASH_SECT 11 /* max number of sectors on one chip */
|
||||
#define CONFIG_SYS_FLASH_ERASE_TOUT 1000
|
||||
# define CONFIG_SYS_MAX_FLASH_SECT 137 /* max number of sectors on one chip */
|
||||
# define CONFIG_SYS_FLASH_PROTECTION /* "Real" (hardware) sectors protection */
|
||||
#endif
|
||||
|
||||
/*-----------------------------------------------------------------------
|
||||
* Cache Configuration
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue