mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-27 13:33:40 +00:00
c837dcb1a3
before we can access it; add delay in case we are faster (with no CF card inserted) * Cleanup of some init functions * Make sure SCC Ethernet is always stopped by the time we boot Linux to avoid Linux crashes by early packets coming in. * Accelerate flash accesses on LWMON board by using buffered writes
627 lines
15 KiB
C
627 lines
15 KiB
C
/*
|
|
* (C) Copyright 2001
|
|
* 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
|
|
*/
|
|
|
|
/* #define DEBUG */
|
|
|
|
#include <common.h>
|
|
#include <mpc8xx.h>
|
|
|
|
#if defined(CFG_ENV_IS_IN_FLASH)
|
|
# ifndef CFG_ENV_ADDR
|
|
# define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
|
|
# endif
|
|
# ifndef CFG_ENV_SIZE
|
|
# define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
|
|
# endif
|
|
# ifndef CFG_ENV_SECT_SIZE
|
|
# define CFG_ENV_SECT_SIZE CFG_ENV_SIZE
|
|
# endif
|
|
#endif
|
|
|
|
/*---------------------------------------------------------------------*/
|
|
|
|
flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Functions
|
|
*/
|
|
static ulong flash_get_size (vu_long *addr, flash_info_t *info);
|
|
static int write_data (flash_info_t *info, ulong dest, ulong data);
|
|
#ifdef CFG_FLASH_USE_BUFFER_WRITE
|
|
static int write_data_buf (flash_info_t * info, ulong dest, uchar * cp, int len);
|
|
#endif
|
|
static void flash_get_offsets (ulong base, flash_info_t *info);
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
unsigned long flash_init (void)
|
|
{
|
|
volatile immap_t *immap = (immap_t *)CFG_IMMR;
|
|
volatile memctl8xx_t *memctl = &immap->im_memctl;
|
|
unsigned long size_b0, size_b1;
|
|
int i;
|
|
|
|
/* Init: no FLASHes known */
|
|
for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
|
|
flash_info[i].flash_id = FLASH_UNKNOWN;
|
|
}
|
|
|
|
/* Static FLASH Bank configuration here - FIXME XXX */
|
|
|
|
debug ("\n## Get flash bank 1 size @ 0x%08x\n",FLASH_BASE0_PRELIM);
|
|
|
|
size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
|
|
|
|
if (flash_info[0].flash_id == FLASH_UNKNOWN) {
|
|
printf ("## Unknown FLASH on Bank 0: "
|
|
"ID 0x%lx, Size = 0x%08lx = %ld MB\n",
|
|
flash_info[0].flash_id,
|
|
size_b0, size_b0<<20);
|
|
}
|
|
|
|
debug ("## Get flash bank 2 size @ 0x%08x\n",FLASH_BASE1_PRELIM);
|
|
|
|
size_b1 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]);
|
|
|
|
debug ("## Prelim. Flash bank sizes: %08lx + 0x%08lx\n",size_b0,size_b1);
|
|
|
|
if (size_b1 > size_b0) {
|
|
printf ("## ERROR: "
|
|
"Bank 1 (0x%08lx = %ld MB) > Bank 0 (0x%08lx = %ld MB)\n",
|
|
size_b1, size_b1<<20,
|
|
size_b0, size_b0<<20
|
|
);
|
|
flash_info[0].flash_id = FLASH_UNKNOWN;
|
|
flash_info[1].flash_id = FLASH_UNKNOWN;
|
|
flash_info[0].sector_count = -1;
|
|
flash_info[1].sector_count = -1;
|
|
flash_info[0].size = 0;
|
|
flash_info[1].size = 0;
|
|
return (0);
|
|
}
|
|
|
|
debug ("## Before remap: "
|
|
"BR0: 0x%08x OR0: 0x%08x "
|
|
"BR1: 0x%08x OR1: 0x%08x\n",
|
|
memctl->memc_br0, memctl->memc_or0,
|
|
memctl->memc_br1, memctl->memc_or1);
|
|
|
|
/* Remap FLASH according to real size */
|
|
memctl->memc_or0 = (-size_b0 & 0xFFFF8000) | CFG_OR_TIMING_FLASH |
|
|
OR_CSNT_SAM | OR_ACS_DIV1;
|
|
memctl->memc_br0 = (CFG_FLASH_BASE & BR_BA_MSK) | BR_PS_32 | BR_V;
|
|
|
|
debug ("## BR0: 0x%08x OR0: 0x%08x\n",
|
|
memctl->memc_br0, memctl->memc_or0);
|
|
|
|
/* Re-do sizing to get full correct info */
|
|
size_b0 = flash_get_size((vu_long *)CFG_FLASH_BASE, &flash_info[0]);
|
|
|
|
flash_get_offsets (CFG_FLASH_BASE, &flash_info[0]);
|
|
|
|
flash_info[0].size = size_b0;
|
|
|
|
#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
|
|
/* monitor protection ON by default */
|
|
flash_protect(FLAG_PROTECT_SET,
|
|
CFG_MONITOR_BASE,
|
|
CFG_MONITOR_BASE+monitor_flash_len-1,
|
|
&flash_info[0]);
|
|
#endif
|
|
|
|
#ifdef CFG_ENV_IS_IN_FLASH
|
|
/* ENV protection ON by default */
|
|
flash_protect(FLAG_PROTECT_SET,
|
|
CFG_ENV_ADDR,
|
|
CFG_ENV_ADDR+CFG_ENV_SECT_SIZE-1,
|
|
&flash_info[0]);
|
|
#endif
|
|
|
|
if (size_b1) {
|
|
memctl->memc_or1 = (-size_b1 & 0xFFFF8000) | CFG_OR_TIMING_FLASH |
|
|
OR_CSNT_SAM | OR_ACS_DIV1;
|
|
memctl->memc_br1 = ((CFG_FLASH_BASE + size_b0) & BR_BA_MSK) |
|
|
BR_PS_32 | BR_V;
|
|
|
|
debug ("## BR1: 0x%08x OR1: 0x%08x\n",
|
|
memctl->memc_br1, memctl->memc_or1);
|
|
|
|
/* Re-do sizing to get full correct info */
|
|
size_b1 = flash_get_size((vu_long *)(CFG_FLASH_BASE + size_b0),
|
|
&flash_info[1]);
|
|
|
|
flash_info[1].size = size_b1;
|
|
|
|
flash_get_offsets (CFG_FLASH_BASE + size_b0, &flash_info[1]);
|
|
|
|
#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
|
|
/* monitor protection ON by default */
|
|
flash_protect(FLAG_PROTECT_SET,
|
|
CFG_MONITOR_BASE,
|
|
CFG_MONITOR_BASE+monitor_flash_len-1,
|
|
&flash_info[1]);
|
|
#endif
|
|
|
|
#ifdef CFG_ENV_IS_IN_FLASH
|
|
/* ENV protection ON by default */
|
|
flash_protect(FLAG_PROTECT_SET,
|
|
CFG_ENV_ADDR,
|
|
CFG_ENV_ADDR+CFG_ENV_SECT_SIZE-1,
|
|
&flash_info[1]);
|
|
#endif
|
|
} else {
|
|
memctl->memc_br1 = 0; /* invalidate bank */
|
|
memctl->memc_or1 = 0; /* invalidate bank */
|
|
|
|
debug ("## DISABLE BR1: 0x%08x OR1: 0x%08x\n",
|
|
memctl->memc_br1, memctl->memc_or1);
|
|
|
|
flash_info[1].flash_id = FLASH_UNKNOWN;
|
|
flash_info[1].sector_count = -1;
|
|
flash_info[1].size = 0;
|
|
}
|
|
|
|
debug ("## Final Flash bank sizes: %08lx + 0x%08lx\n",size_b0,size_b1);
|
|
|
|
return (size_b0 + size_b1);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
static void flash_get_offsets (ulong base, flash_info_t *info)
|
|
{
|
|
int i;
|
|
|
|
if (info->flash_id == FLASH_UNKNOWN) {
|
|
return;
|
|
}
|
|
|
|
switch (info->flash_id & FLASH_VENDMASK) {
|
|
case FLASH_MAN_INTEL:
|
|
for (i = 0; i < info->sector_count; i++) {
|
|
info->start[i] = base;
|
|
base += 0x00020000 * 2; /* 128k * 2 chips per bank */
|
|
}
|
|
return;
|
|
|
|
default:
|
|
printf ("Don't know sector ofsets for flash type 0x%lx\n",
|
|
info->flash_id);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
void flash_print_info (flash_info_t *info)
|
|
{
|
|
int i;
|
|
|
|
if (info->flash_id == FLASH_UNKNOWN) {
|
|
printf ("missing or unknown FLASH type\n");
|
|
return;
|
|
}
|
|
|
|
switch (info->flash_id & FLASH_VENDMASK) {
|
|
case FLASH_MAN_AMD: printf ("AMD "); break;
|
|
case FLASH_MAN_FUJ: printf ("Fujitsu "); break;
|
|
case FLASH_MAN_SST: printf ("SST "); break;
|
|
case FLASH_MAN_STM: printf ("STM "); break;
|
|
case FLASH_MAN_INTEL: printf ("Intel "); break;
|
|
case FLASH_MAN_MT: printf ("MT "); break;
|
|
default: printf ("Unknown Vendor "); break;
|
|
}
|
|
|
|
switch (info->flash_id & FLASH_TYPEMASK) {
|
|
case FLASH_28F320J3A: printf ("28F320J3A (32Mbit = 128K x 32)\n");
|
|
break;
|
|
case FLASH_28F640J3A: printf ("28F640J3A (64Mbit = 128K x 64)\n");
|
|
break;
|
|
case FLASH_28F128J3A: printf ("28F128J3A (128Mbit = 128K x 128)\n");
|
|
break;
|
|
default: printf ("Unknown Chip Type\n");
|
|
break;
|
|
}
|
|
|
|
if (info->size >= (1 << 20)) {
|
|
i = 20;
|
|
} else {
|
|
i = 10;
|
|
}
|
|
printf (" Size: %ld %cB in %d Sectors\n",
|
|
info->size >> i,
|
|
(i == 20) ? 'M' : 'k',
|
|
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");
|
|
return;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
/*
|
|
* The following code cannot be run from FLASH!
|
|
*/
|
|
|
|
static ulong flash_get_size (vu_long *addr, flash_info_t *info)
|
|
{
|
|
ulong value;
|
|
|
|
/* Read Manufacturer ID */
|
|
addr[0] = 0x00900090;
|
|
value = addr[0];
|
|
|
|
debug ("Manuf. ID @ 0x%08lx: 0x%08lx\n", (ulong)addr, value);
|
|
|
|
switch (value) {
|
|
case AMD_MANUFACT:
|
|
info->flash_id = FLASH_MAN_AMD;
|
|
break;
|
|
case FUJ_MANUFACT:
|
|
info->flash_id = FLASH_MAN_FUJ;
|
|
break;
|
|
case SST_MANUFACT:
|
|
info->flash_id = FLASH_MAN_SST;
|
|
break;
|
|
case STM_MANUFACT:
|
|
info->flash_id = FLASH_MAN_STM;
|
|
break;
|
|
case INTEL_MANUFACT:
|
|
info->flash_id = FLASH_MAN_INTEL;
|
|
break;
|
|
default:
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
info->sector_count = 0;
|
|
info->size = 0;
|
|
addr[0] = 0x00FF00FF; /* restore read mode */
|
|
return (0); /* no or unknown flash */
|
|
}
|
|
|
|
value = addr[1]; /* device ID */
|
|
|
|
debug ("Device ID @ 0x%08lx: 0x%08lx\n", (ulong)(&addr[1]), value);
|
|
|
|
switch (value) {
|
|
case INTEL_ID_28F320J3A:
|
|
info->flash_id += FLASH_28F320J3A;
|
|
info->sector_count = 32;
|
|
info->size = 0x00400000 * 2;
|
|
break; /* => 8 MB */
|
|
|
|
case INTEL_ID_28F640J3A:
|
|
info->flash_id += FLASH_28F640J3A;
|
|
info->sector_count = 64;
|
|
info->size = 0x00800000 * 2;
|
|
break; /* => 16 MB */
|
|
|
|
case INTEL_ID_28F128J3A:
|
|
info->flash_id += FLASH_28F128J3A;
|
|
info->sector_count = 128;
|
|
info->size = 0x01000000 * 2;
|
|
break; /* => 32 MB */
|
|
|
|
default:
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
addr[0] = 0x00FF00FF; /* restore read mode */
|
|
return (0); /* => no or unknown flash */
|
|
|
|
}
|
|
|
|
if (info->sector_count > CFG_MAX_FLASH_SECT) {
|
|
printf ("** ERROR: sector count %d > max (%d) **\n",
|
|
info->sector_count, CFG_MAX_FLASH_SECT);
|
|
info->sector_count = CFG_MAX_FLASH_SECT;
|
|
}
|
|
|
|
addr[0] = 0x00FF00FF; /* restore read mode */
|
|
|
|
return (info->size);
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
int flash_erase (flash_info_t *info, int s_first, int s_last)
|
|
{
|
|
int flag, prot, sect;
|
|
ulong start, now, last;
|
|
|
|
debug ("flash_erase: first: %d last: %d\n", s_first, s_last);
|
|
|
|
if ((s_first < 0) || (s_first > s_last)) {
|
|
if (info->flash_id == FLASH_UNKNOWN) {
|
|
printf ("- missing\n");
|
|
} else {
|
|
printf ("- no sectors to erase\n");
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
if ((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL) {
|
|
printf ("Can erase only Intel flash types - aborted\n");
|
|
return 1;
|
|
}
|
|
|
|
prot = 0;
|
|
for (sect=s_first; sect<=s_last; ++sect) {
|
|
if (info->protect[sect]) {
|
|
prot++;
|
|
}
|
|
}
|
|
|
|
if (prot) {
|
|
printf ("- Warning: %d protected sectors will not be erased!\n",
|
|
prot);
|
|
} else {
|
|
printf ("\n");
|
|
}
|
|
|
|
start = get_timer (0);
|
|
last = start;
|
|
/* Start erase on unprotected sectors */
|
|
for (sect = s_first; sect<=s_last; sect++) {
|
|
if (info->protect[sect] == 0) { /* not protected */
|
|
vu_long *addr = (vu_long *)(info->start[sect]);
|
|
unsigned long status;
|
|
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts();
|
|
|
|
*addr = 0x00500050; /* clear status register */
|
|
*addr = 0x00200020; /* erase setup */
|
|
*addr = 0x00D000D0; /* erase confirm */
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
/* wait at least 80us - let's wait 1 ms */
|
|
udelay (1000);
|
|
|
|
while (((status = *addr) & 0x00800080) != 0x00800080) {
|
|
if ((now=get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
|
|
printf ("Timeout\n");
|
|
*addr = 0x00B000B0; /* suspend erase */
|
|
*addr = 0x00FF00FF; /* reset to read mode */
|
|
return 1;
|
|
}
|
|
|
|
/* show that we're waiting */
|
|
if ((now - last) > 1000) { /* every second */
|
|
putc ('.');
|
|
last = now;
|
|
}
|
|
}
|
|
|
|
*addr = 0x00FF00FF; /* reset to read mode */
|
|
}
|
|
}
|
|
printf (" done\n");
|
|
return 0;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Copy memory to flash, returns:
|
|
* 0 - OK
|
|
* 1 - write timeout
|
|
* 2 - Flash not erased
|
|
* 4 - Flash not identified
|
|
*/
|
|
|
|
#define FLASH_WIDTH 4 /* flash bus width in bytes */
|
|
|
|
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
|
|
{
|
|
ulong cp, wp, data;
|
|
int i, l, rc;
|
|
|
|
if (info->flash_id == FLASH_UNKNOWN) {
|
|
return 4;
|
|
}
|
|
|
|
wp = (addr & ~(FLASH_WIDTH-1)); /* get lower FLASH_WIDTH aligned address */
|
|
|
|
/*
|
|
* handle unaligned start bytes
|
|
*/
|
|
if ((l = addr - wp) != 0) {
|
|
data = 0;
|
|
for (i=0, cp=wp; i<l; ++i, ++cp) {
|
|
data = (data << 8) | (*(uchar *)cp);
|
|
}
|
|
for (; i<FLASH_WIDTH && cnt>0; ++i) {
|
|
data = (data << 8) | *src++;
|
|
--cnt;
|
|
++cp;
|
|
}
|
|
for (; cnt==0 && i<FLASH_WIDTH; ++i, ++cp) {
|
|
data = (data << 8) | (*(uchar *)cp);
|
|
}
|
|
|
|
if ((rc = write_data(info, wp, data)) != 0) {
|
|
return (rc);
|
|
}
|
|
wp += FLASH_WIDTH;
|
|
}
|
|
|
|
/*
|
|
* handle FLASH_WIDTH aligned part
|
|
*/
|
|
#ifdef CFG_FLASH_USE_BUFFER_WRITE
|
|
while(cnt >= FLASH_WIDTH) {
|
|
i = CFG_FLASH_BUFFER_SIZE > cnt ?
|
|
(cnt & ~(FLASH_WIDTH - 1)) : CFG_FLASH_BUFFER_SIZE;
|
|
if((rc = write_data_buf(info, wp, src,i)) != 0)
|
|
return rc;
|
|
wp += i;
|
|
src += i;
|
|
cnt -=i;
|
|
}
|
|
#else
|
|
while (cnt >= FLASH_WIDTH) {
|
|
data = 0;
|
|
for (i=0; i<FLASH_WIDTH; ++i) {
|
|
data = (data << 8) | *src++;
|
|
}
|
|
if ((rc = write_data(info, wp, data)) != 0) {
|
|
return (rc);
|
|
}
|
|
wp += FLASH_WIDTH;
|
|
cnt -= FLASH_WIDTH;
|
|
}
|
|
#endif /* CFG_FLASH_USE_BUFFER_WRITE */
|
|
|
|
if (cnt == 0) {
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* handle unaligned tail bytes
|
|
*/
|
|
data = 0;
|
|
for (i=0, cp=wp; i<FLASH_WIDTH && cnt>0; ++i, ++cp) {
|
|
data = (data << 8) | *src++;
|
|
--cnt;
|
|
}
|
|
for (; i<FLASH_WIDTH; ++i, ++cp) {
|
|
data = (data << 8) | (*(uchar *)cp);
|
|
}
|
|
|
|
return (write_data(info, wp, data));
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Check flash status, returns:
|
|
* 0 - OK
|
|
* 1 - timeout
|
|
*/
|
|
static int flash_status_check(vu_long *addr, ulong tout, char * prompt)
|
|
{
|
|
ulong status;
|
|
ulong start;
|
|
|
|
/* Wait for command completion */
|
|
start = get_timer (0);
|
|
while(((status = *addr) & 0x00800080) != 0x00800080) {
|
|
if (get_timer(start) > tout) {
|
|
printf("Flash %s timeout at address %p\n", prompt, addr);
|
|
*addr = 0x00FF00FF; /* restore read mode */
|
|
return (1);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Write a word to Flash, returns:
|
|
* 0 - OK
|
|
* 1 - write timeout
|
|
* 2 - Flash not erased
|
|
*/
|
|
static int write_data (flash_info_t *info, ulong dest, ulong data)
|
|
{
|
|
vu_long *addr = (vu_long *)dest;
|
|
int flag;
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
if ((*addr & data) != data) {
|
|
return (2);
|
|
}
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts();
|
|
|
|
*addr = 0x00400040; /* write setup */
|
|
*addr = data;
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
if (flash_status_check(addr, CFG_FLASH_WRITE_TOUT, "write") != 0) {
|
|
return (1);
|
|
}
|
|
|
|
*addr = 0x00FF00FF; /* restore read mode */
|
|
|
|
return (0);
|
|
}
|
|
|
|
#ifdef CFG_FLASH_USE_BUFFER_WRITE
|
|
/*-----------------------------------------------------------------------
|
|
* Write a buffer to Flash, returns:
|
|
* 0 - OK
|
|
* 1 - write timeout
|
|
*/
|
|
static int write_data_buf(flash_info_t * info, ulong dest, uchar * cp, int len)
|
|
{
|
|
vu_long *addr = (vu_long *)dest;
|
|
int sector;
|
|
int cnt;
|
|
int retcode;
|
|
vu_long * src = (vu_long *)cp;
|
|
vu_long * dst = (vu_long *)dest;
|
|
|
|
/* find sector */
|
|
for(sector = info->sector_count - 1; sector >= 0; sector--) {
|
|
if(dest >= info->start[sector])
|
|
break;
|
|
}
|
|
|
|
*addr = 0x00500050; /* clear status */
|
|
*addr = 0x00e800e8; /* write buffer */
|
|
|
|
if((retcode = flash_status_check(addr, CFG_FLASH_BUFFER_WRITE_TOUT,
|
|
"write to buffer")) == 0) {
|
|
cnt = len / FLASH_WIDTH;
|
|
*addr = (cnt-1) | ((cnt-1) << 16);
|
|
while(cnt-- > 0) {
|
|
*dst++ = *src++;
|
|
}
|
|
*addr = 0x00d000d0; /* write buffer confirm */
|
|
retcode = flash_status_check(addr, CFG_FLASH_BUFFER_WRITE_TOUT,
|
|
"buffer write");
|
|
}
|
|
*addr = 0x00FF00FF; /* restore read mode */
|
|
*addr = 0x00500050; /* clear status */
|
|
return retcode;
|
|
}
|
|
#endif /* CFG_USE_FLASH_BUFFER_WRITE */
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|