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[INKA4x0] NG hardware: flash support

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Disabled and remove inka4x0 custom flash driver, use CFI flash
driver instead.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
master
Marian Balakowicz 18 years ago
parent 5fb6d7191e
commit 5e71c51d74
3 changed files with 10 additions and 443 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 2
      board/inka4x0/Makefile
  2. 432
      board/inka4x0/flash.c
  3. 19
      include/configs/inka4x0.h

2
board/inka4x0/Makefile
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@ -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))

432
board/inka4x0/flash.c
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@ -1,432 +0,0 @@
/*
* (C) Copyright 2003-2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2004
* Martin Krause, TQ-Systems GmbH, martin.krause@tqs.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>
flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
/*
* CPU to flash interface is 8-bit, so make declaration accordingly
*/
typedef unsigned char FLASH_PORT_WIDTH;
typedef volatile unsigned char FLASH_PORT_WIDTHV;
#define FPW FLASH_PORT_WIDTH
#define FPWV FLASH_PORT_WIDTHV
#define FLASH_CYCLE1 0x0555
#define FLASH_CYCLE2 0x02aa
/*-----------------------------------------------------------------------
* Functions
*/
static ulong flash_get_size(FPWV *addr, flash_info_t *info);
static void flash_reset(flash_info_t *info);
static int write_word_amd(flash_info_t *info, FPWV *dest, FPW data);
static flash_info_t *flash_get_info(ulong base);
/*-----------------------------------------------------------------------
* flash_init()
*
* sets up flash_info and returns size of FLASH (bytes)
*/
unsigned long flash_init (void)
{
unsigned long size = 0;
extern void flash_preinit(void);
ulong flashbase = CFG_FLASH_BASE;
flash_preinit();
/* Init: no FLASHes known */
memset(&flash_info[0], 0, sizeof(flash_info_t));
flash_info[0].size =
flash_get_size((FPW *)flashbase, &flash_info[0]);
size = flash_info[0].size;
#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_get_info(CFG_MONITOR_BASE));
#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_SIZE-1,
flash_get_info(CFG_ENV_ADDR));
#endif
return size ? size : 1;
}
/*-----------------------------------------------------------------------
*/
static void flash_reset(flash_info_t *info)
{
FPWV *base = (FPWV *)(info->start[0]);
/* Put FLASH back in read mode */
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL)
*base = (FPW)0x00FF00FF; /* Intel Read Mode */
else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD)
*base = (FPW)0x00F000F0; /* AMD Read Mode */
}
/*-----------------------------------------------------------------------
*/
static flash_info_t *flash_get_info(ulong base)
{
int i;
flash_info_t * info;
for (i = 0; i < CFG_MAX_FLASH_BANKS; i ++) {
info = & flash_info[i];
if (info->size && info->start[0] <= base &&
base <= info->start[0] + info->size - 1)
break;
}
return i == CFG_MAX_FLASH_BANKS ? 0 : info;
}
/*-----------------------------------------------------------------------
*/
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_BM: printf ("BRIGHT MICRO "); 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;
default: printf ("Unknown Vendor "); break;
}
switch (info->flash_id & FLASH_TYPEMASK) {
case FLASH_AM116DB:
printf ("AM29LV116DB (16Mbit, bottom boot sect)\n");
break;
case FLASH_AMLV128U:
printf ("AM29LV128ML (128Mbit, uniform sector size)\n");
break;
case FLASH_AM160B:
printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");
break;
default:
printf ("Unknown Chip Type\n");
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");
return;
}
/*-----------------------------------------------------------------------
*/
/*
* The following code cannot be run from FLASH!
*/
ulong flash_get_size (FPWV *addr, flash_info_t *info)
{
int i;
ulong base = (ulong)addr;
/* Write auto select command: read Manufacturer ID */
/* Write auto select command sequence and test FLASH answer */
addr[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* for AMD, Intel ignores this */
addr[FLASH_CYCLE2] = (FPW)0x00550055; /* for AMD, Intel ignores this */
addr[FLASH_CYCLE1] = (FPW)0x00900090; /* selects Intel or AMD */
/* The manufacturer codes are only 1 byte, so just use 1 byte.
* This works for any bus width and any FLASH device width.
*/
udelay(100);
switch (addr[0] & 0xff) {
case (uchar)AMD_MANUFACT:
debug ("Manufacturer: AMD (Spansion)\n");
info->flash_id = FLASH_MAN_AMD;
break;
case (uchar)INTEL_MANUFACT:
debug ("Manufacturer: Intel (not supported yet)\n");
info->flash_id = FLASH_MAN_INTEL;
break;
default:
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
info->size = 0;
break;
}
/* Check 16 bits or 32 bits of ID so work on 32 or 16 bit bus. */
if (info->flash_id != FLASH_UNKNOWN) switch ((FPW)addr[1]) {
case (uchar)AMD_ID_LV116DB:
debug ("Chip: AM29LV116DB\n");
info->flash_id += FLASH_AM116DB;
info->sector_count = 35;
info->size = 0x00200000;
/*
* The first 4 sectors are 16 kB, 8 kB, 8 kB and 32 kB, all
* the other ones are 64 kB
*/
info->start[0] = base + 0x00000000;
info->start[1] = base + 0x00004000;
info->start[2] = base + 0x00006000;
info->start[3] = base + 0x00008000;
for( i = 4; i < info->sector_count; i++ )
info->start[i] =
base + (i * (64 << 10)) - 0x00030000;
break; /* => 2 MB */
case (FPW)AMD_ID_LV160B:
debug ("Chip: AM29LV160MB\n");
info->flash_id += FLASH_AM160B;
info->sector_count = 35;
info->size = 0x00400000;
/*
* The first 4 sectors are 16 kB, 8 kB, 8 kB and 32 kB, all
* the other ones are 64 kB
*/
info->start[0] = base + 0x00000000;
info->start[1] = base + 0x00008000;
info->start[2] = base + 0x0000C000;
info->start[3] = base + 0x00010000;
for( i = 4; i < info->sector_count; i++ )
info->start[i] =
base + (i * 2 * (64 << 10)) - 0x00060000;
break; /* => 4 MB */
default:
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
info->size = 0;
}
/* Put FLASH back in read mode */
flash_reset(info);
return (info->size);
}
/*-----------------------------------------------------------------------
*/
int flash_erase (flash_info_t *info, int s_first, int s_last)
{
FPWV *addr = (FPWV*)(info->start[0]);
int flag, prot, sect, l_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_UNKNOWN) ||
(info->flash_id > FLASH_AMD_COMP)) {
printf ("Can't erase unknown flash type %08lx - aborted\n",
info->flash_id);
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");
}
l_sect = -1;
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts();
addr[0x0555] = (FPW)0x00AA00AA;
addr[0x02AA] = (FPW)0x00550055;
addr[0x0555] = (FPW)0x00800080;
addr[0x0555] = (FPW)0x00AA00AA;
addr[0x02AA] = (FPW)0x00550055;
/* Start erase on unprotected sectors */
for (sect = s_first; sect<=s_last; sect++) {
if (info->protect[sect] == 0) { /* not protected */
addr = (FPWV*)(info->start[sect]);
addr[0] = (FPW)0x00300030;
l_sect = sect;
}
}
/* re-enable interrupts if necessary */
if (flag)
enable_interrupts();
/* wait at least 80us - let's wait 1 ms */
udelay (1000);
/*
* We wait for the last triggered sector
*/
if (l_sect < 0)
goto DONE;
start = get_timer (0);
last = start;
addr = (FPWV*)(info->start[l_sect]);
while ((addr[0] & (FPW)0x00800080) != (FPW)0x00800080) {
if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
printf ("Timeout\n");
return 1;
}
/* show that we're waiting */
if ((now - last) > 1000) { /* every second */
putc ('.');
last = now;
}
}
DONE:
/* reset to read mode */
addr = (FPWV*)info->start[0];
addr[0] = (FPW)0x00F000F0; /* reset bank */
printf (" done\n");
return 0;
}
/*-----------------------------------------------------------------------
* Copy memory to flash, returns:
* 0 - OK
* 1 - write timeout
* 2 - Flash not erased
*/
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
{
int i, rc = 0;
for (i = 0; i < cnt; i++)
if ((rc = write_word_amd(info, (FPW *)(addr+i), src[i])) != 0) {
return (rc);
}
return rc;
}
/*-----------------------------------------------------------------------
* Write a word to Flash for AMD FLASH
* A word is 16 or 32 bits, whichever the bus width of the flash bank
* (not an individual chip) is.
*
* returns:
* 0 - OK
* 1 - write timeout
* 2 - Flash not erased
*/
static int write_word_amd (flash_info_t *info, FPWV *dest, FPW data)
{
ulong start;
int flag;
FPWV *base; /* first address in flash bank */
/* Check if Flash is (sufficiently) erased */
if ((*dest & data) != data) {
return (2);
}
base = (FPWV *)(info->start[0]);
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts();
base[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* unlock */
base[FLASH_CYCLE2] = (FPW)0x00550055; /* unlock */
base[FLASH_CYCLE1] = (FPW)0x00A000A0; /* selects program mode */
*dest = data; /* start programming the data */
/* re-enable interrupts if necessary */
if (flag)
enable_interrupts();
start = get_timer (0);
/* data polling for D7 */
while ((*dest & (FPW)0x00800080) != (data & (FPW)0x00800080)) {
if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
*dest = (FPW)0x00F000F0; /* reset bank */
return (1);
}
}
return (0);
}

19
include/configs/inka4x0.h
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@ -156,21 +156,20 @@
/*
* Flash configuration
*/
#define CFG_FLASH_BASE 0xFFE00000
#define CFG_FLASH_SIZE 0x00200000 /* 2 MByte */
#define CFG_MAX_FLASH_SECT 35 /* max num of sects on one chip */
#define CFG_ENV_ADDR (CFG_FLASH_BASE + 0x4000) /* second sector */
#define CFG_MAX_FLASH_BANKS 1 /* max num of flash banks
(= chip selects) */
#define CFG_FLASH_ERASE_TOUT 240000 /* Flash Erase Timeout (in ms) */
#define CFG_FLASH_WRITE_TOUT 500 /* Flash Write Timeout (in ms) */
#define CFG_FLASH_CFI 1 /* Flash is CFI conformant */
#define CFG_FLASH_CFI_DRIVER 1
#define CFG_FLASH_BASE 0xffe00000
#define CFG_FLASH_SIZE 0x00200000
#define CFG_MAX_FLASH_BANKS 1 /* max num of memory banks */
#define CFG_FLASH_BANKS_LIST { CFG_FLASH_BASE }
#define CFG_MAX_FLASH_SECT 128 /* max num of sects on one chip */
#define CFG_FLASH_USE_BUFFER_WRITE 1 /* use buffered writes (20x faster) */
/*
* Environment settings
*/
#define CFG_ENV_IS_IN_FLASH 1
#define CFG_ENV_ADDR (CFG_FLASH_BASE + 0x4000)
#define CFG_ENV_SIZE 0x2000
#define CFG_ENV_SECT_SIZE 0x2000
#define CONFIG_ENV_OVERWRITE 1

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