Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-10 23:24:38 +00:00
Code Issues Projects Releases Packages Wiki Activity

Patch by Yuli Barcohen, 09 Jun 2004:

Browse source 
Add support for 8MB flash SIMM and JFFS2 file system on
Motorola FADS board and its derivatives (MPC86xADS, MPC885ADS).
This commit is contained in:
wdenk 2004-06-09 21:54:22 +00:00
parent 2d24a3a787
commit 99edcfb29e
4 changed files with 106 additions and 175 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
CHANGELOG
View file

@ -2,6 +2,10 @@
Changes since U-Boot 1.1.1:
======================================================================
* Patch by Yuli Barcohen, 09 Jun 2004:
Add support for 8MB flash SIMM and JFFS2 file system on
Motorola FADS board and its derivatives (MPC86xADS, MPC885ADS).
* Patch by Yuli Barcohen, 09 Jun 2004:
Add support for Analogue&Micro Adder87x and the older AdderII board.

34
board/fads/fads.h
View file

@ -91,6 +91,7 @@
#define CONFIG_COMMANDS (CONFIG_CMD_DFL \
| CFG_CMD_DHCP \
| CFG_CMD_IMMAP \
| CFG_CMD_JFFS2 \
| CFG_CMD_MII \
| CFG_CMD_PCMCIA \
| CFG_CMD_PING \
@ -166,14 +167,24 @@
* the maximum mapped by the Linux kernel during initialization.
*/
#define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
#define CFG_MONITOR_BASE TEXT_BASE
#define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 KB for monitor */
#ifdef CONFIG_BZIP2
#define CFG_MALLOC_LEN (2500 << 10) /* Reserve ~2.5 MB for malloc() */
#else
#define CFG_MALLOC_LEN (384 << 10) /* Reserve 384 kB for malloc() */
#endif /* CONFIG_BZIP2 */
/*-----------------------------------------------------------------------
* Flash organization
*/
#define CFG_FLASH_BASE TEXT_BASE
#define CFG_FLASH_SIZE ((uint)(8 * 1024 * 1024)) /* max 8Mbyte */
#define CFG_FLASH_BASE CFG_MONITOR_BASE
#define CFG_FLASH_SIZE ((uint)(8 * 1024 * 1024)) /* max 8Mbyte */
#define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
#define CFG_MAX_FLASH_SECT 16 /* max number of sectors on one chip */
#define CFG_MAX_FLASH_BANKS 4 /* max number of memory banks */
#define CFG_MAX_FLASH_SECT 8 /* max number of sectors on one chip */
#define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
#define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
@ -183,14 +194,14 @@
#define CFG_ENV_OFFSET CFG_ENV_SECT_SIZE
#define CFG_ENV_SIZE 0x4000 /* Total Size of Environment */
#define CFG_MONITOR_BASE CFG_FLASH_BASE
#define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 KB for monitor */
#define CFG_DIRECT_FLASH_TFTP
#ifdef CONFIG_BZIP2
#define CFG_MALLOC_LEN (2500 << 10) /* Reserve ~2.5 MB for malloc() */
#else
#define CFG_MALLOC_LEN (384 << 10) /* Reserve 384 kB for malloc() */
#endif /* CONFIG_BZIP2 */
#if (CONFIG_COMMANDS & CFG_CMD_JFFS2)
#define CFG_JFFS2_FIRST_BANK 0
#define CFG_JFFS2_NUM_BANKS CFG_MAX_FLASH_BANKS
#define CFG_JFFS2_FIRST_SECTOR 4
#define CFG_JFFS2_SORT_FRAGMENTS
#endif /* CFG_CMD_JFFS2 */
/*-----------------------------------------------------------------------
* Cache Configuration
@ -352,6 +363,7 @@
#define BCSR1_PCCVCCON BCSR1_PCCVCC0
#define BCSR2_FLASH_PD_MASK ((uint)0xF0000000)
#define BCSR2_FLASH_PD_SHIFT 28
#define BCSR2_DRAM_PD_MASK ((uint)0x07800000)
#define BCSR2_DRAM_PD_SHIFT 23
#define BCSR2_EXTTOLI_MASK ((uint)0x00780000)

241
board/fads/flash.c
View file

@ -24,7 +24,7 @@
#include <common.h>
#include <mpc8xx.h>
flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
#if defined(CFG_ENV_IS_IN_FLASH)
# ifndef CFG_ENV_ADDR
@ -38,124 +38,103 @@ flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
# endif
#endif
#define QUAD_ID(id) ((((ulong)(id) & 0xFF) << 24) | \
(((ulong)(id) & 0xFF) << 16) | \
(((ulong)(id) & 0xFF) << 8) | \
(((ulong)(id) & 0xFF) << 0) \
)
/*-----------------------------------------------------------------------
* Functions
*/
static ulong flash_get_size (vu_long * addr, flash_info_t * info);
static int write_word (flash_info_t * info, ulong dest, ulong data);
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 total_size;
unsigned long size_b0, size_b1;
vu_long *bcsr = (vu_long *)BCSR_ADDR;
unsigned long pd_size, total_size, bsize, or_am;
int i;
/* Init: no FLASHes known */
for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
flash_info[i].flash_id = FLASH_UNKNOWN;
flash_info[i].size = 0;
flash_info[i].sector_count = 0;
flash_info[i].start[0] = 0xFFFFFFFF; /* For TFTP */
}
switch ((bcsr[2] & BCSR2_FLASH_PD_MASK) >> BCSR2_FLASH_PD_SHIFT) {
case 2:
case 4:
case 6:
pd_size = 0x800000;
or_am = 0xFF800000;
break;
case 5:
case 7:
pd_size = 0x400000;
or_am = 0xFFC00000;
break;
case 8:
pd_size = 0x200000;
or_am = 0xFFE00000;
break;
default:
pd_size = 0;
or_am = 0xFFE00000;
printf("## Unsupported flash detected by BCSR: 0x%08X\n", bcsr[2]);
}
total_size = 0;
size_b0 = 0xffffffff;
for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
size_b1 =
flash_get_size ((vu_long *) (CFG_FLASH_BASE +
total_size),
&flash_info[i]);
for (i = 0; i < CFG_MAX_FLASH_BANKS && total_size < pd_size; ++i) {
bsize = flash_get_size((vu_long *)(CFG_FLASH_BASE + total_size),
&flash_info[i]);
if (flash_info[i].flash_id == FLASH_UNKNOWN) {
printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", i, size_b1, size_b1 >> 20);
printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
i, bsize, bsize >> 20);
}
/* Is this really needed ? - LP */
if (size_b1 > size_b0) {
printf ("## ERROR: Bank %d (0x%08lx = %ld MB) > Bank %d (0x%08lx = %ld MB)\n", i, size_b1, size_b1 >> 20, i - 1, size_b0, size_b0 >> 20);
goto out_error;
}
size_b0 = size_b1;
total_size += size_b1;
total_size += bsize;
}
/* Compute the Address Mask */
for (i = 0; (total_size >> i) != 0; ++i) {
}
i--;
if (total_size != (1 << i)) {
printf ("## WARNING: Total FLASH size (0x%08lx = %ld MB) is not a power of 2\n", total_size, total_size >> 20);
if (total_size != pd_size) {
printf("## Detected flash size %lu conflicts with PD data %lu\n",
total_size, pd_size);
}
/* Remap FLASH according to real size */
memctl->memc_or0 =
((((unsigned long) ~0) << i) & OR_AM_MSK) |
CFG_OR_TIMING_FLASH;
memctl->memc_br0 = CFG_BR0_PRELIM;
total_size = 0;
memctl->memc_or0 = or_am | CFG_OR_TIMING_FLASH;
for (i = 0; i < CFG_MAX_FLASH_BANKS && flash_info[i].size != 0; ++i) {
/* Re-do sizing to get full correct info */
/* Why ? - LP */
size_b1 =
flash_get_size ((vu_long *) (CFG_FLASH_BASE +
total_size),
&flash_info[i]);
/* This is done by flash_get_size - LP */
/* flash_get_offsets (CFG_FLASH_BASE + total_size, &flash_info[i]); */
#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[i]);
if (CFG_MONITOR_BASE >= flash_info[i].start[0])
flash_protect (FLAG_PROTECT_SET,
CFG_MONITOR_BASE,
CFG_MONITOR_BASE + monitor_flash_len - 1,
&flash_info[i]);
#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_info[i]);
if (CFG_ENV_ADDR >= flash_info[i].start[0])
flash_protect (FLAG_PROTECT_SET,
CFG_ENV_ADDR,
CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
&flash_info[i]);
#endif
total_size += size_b1;
}
return (total_size);
out_error:
for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
flash_info[i].flash_id = FLASH_UNKNOWN;
flash_info[i].sector_count = -1;
flash_info[i].size = 0;
}
return (0);
}
/*-----------------------------------------------------------------------
*/
static void flash_get_offsets (ulong base, flash_info_t * info)
{
int i;
/* set up sector start address table */
if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040
|| (info->flash_id & FLASH_TYPEMASK) == FLASH_AM080) {
/* set sector offsets for uniform sector type */
for (i = 0; i < info->sector_count; i++) {
info->start[i] = base + (i * 0x00040000);
}
}
return total_size;
}
/*-----------------------------------------------------------------------
@ -235,48 +214,26 @@ void flash_print_info (flash_info_t * info)
}
printf ("\n");
return;
}
/*-----------------------------------------------------------------------
* The following code can not run from flash!
*/
/*-----------------------------------------------------------------------
*/
/*
* The following code cannot be run from FLASH!
*/
static ulong flash_get_size (vu_long * addr, flash_info_t * info)
{
short i;
#if 0
ulong base = (ulong) addr;
#endif
uchar value;
/* Write auto select command: read Manufacturer ID */
#if 0
addr[0x0555] = 0x00AA00AA;
addr[0x02AA] = 0x00550055;
addr[0x0555] = 0x00900090;
#else
addr[0x0555] = 0xAAAAAAAA;
addr[0x02AA] = 0x55555555;
addr[0x0555] = 0x90909090;
#endif
value = addr[0];
switch (value + (value << 16)) {
case AMD_MANUFACT:
switch (addr[0]) {
case QUAD_ID(AMD_MANUFACT):
info->flash_id = FLASH_MAN_AMD;
break;
case FUJ_MANUFACT:
case QUAD_ID(FUJ_MANUFACT):
info->flash_id = FLASH_MAN_FUJ;
break;
@ -287,21 +244,20 @@ static ulong flash_get_size (vu_long * addr, flash_info_t * info)
break;
}
value = addr[1]; /* device ID */
switch (value) {
case AMD_ID_F040B:
switch (addr[1]) { /* device ID */
case QUAD_ID(AMD_ID_F040B):
case QUAD_ID(AMD_ID_LV040B):
info->flash_id += FLASH_AM040;
info->sector_count = 8;
info->size = 0x00200000;
break; /* => 2 MB */
case AMD_ID_F080B:
case QUAD_ID(AMD_ID_F080B):
info->flash_id += FLASH_AM080;
info->sector_count = 16;
info->size = 0x00400000;
break; /* => 4 MB */
#if 0
case AMD_ID_LV400T:
info->flash_id += FLASH_AM400T;
info->sector_count = 11;
@ -337,7 +293,7 @@ static ulong flash_get_size (vu_long * addr, flash_info_t * info)
info->sector_count = 35;
info->size = 0x00400000;
break; /* => 4 MB */
#if 0 /* enable when device IDs are available */
case AMD_ID_LV320T:
info->flash_id += FLASH_AM320T;
info->sector_count = 67;
@ -349,11 +305,10 @@ static ulong flash_get_size (vu_long * addr, flash_info_t * info)
info->sector_count = 67;
info->size = 0x00800000;
break; /* => 8 MB */
#endif
#endif /* 0 */
default:
info->flash_id = FLASH_UNKNOWN;
return (0); /* => no or unknown flash */
}
#if 0
@ -378,7 +333,9 @@ static ulong flash_get_size (vu_long * addr, flash_info_t * info)
}
}
#else
flash_get_offsets ((ulong) addr, info);
/* set sector offsets for uniform sector type */
for (i = 0; i < info->sector_count; i++)
info->start[i] = (ulong)addr + (i * 0x00040000);
#endif
/* check for protected sectors */
@ -389,25 +346,16 @@ static ulong flash_get_size (vu_long * addr, flash_info_t * info)
info->protect[i] = addr[2] & 1;
}
/*
* Prevent writes to uninitialized FLASH.
*/
if (info->flash_id != FLASH_UNKNOWN) {
addr = (volatile unsigned long *) info->start[0];
#if 0
*addr = 0x00F000F0; /* reset bank */
#else
*addr = 0xF0F0F0F0; /* reset bank */
#endif
}
return (info->size);
}
/*-----------------------------------------------------------------------
*/
int flash_erase (flash_info_t * info, int s_first, int s_last)
{
vu_long *addr = (vu_long *) (info->start[0]);
@ -420,13 +368,13 @@ int flash_erase (flash_info_t * info, int s_first, int s_last)
} else {
printf ("- no sectors to erase\n");
}
return 1;
return ERR_INVAL;
}
if ((info->flash_id == FLASH_UNKNOWN) ||
(info->flash_id > FLASH_AMD_COMP)) {
printf ("Can't erase unknown flash type - aborted\n");
return 1;
return ERR_UNKNOWN_FLASH_TYPE;
}
prot = 0;
@ -447,29 +395,17 @@ int flash_erase (flash_info_t * info, int s_first, int s_last)
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts ();
#if 0
addr[0x0555] = 0x00AA00AA;
addr[0x02AA] = 0x00550055;
addr[0x0555] = 0x00800080;
addr[0x0555] = 0x00AA00AA;
addr[0x02AA] = 0x00550055;
#else
addr[0x0555] = 0xAAAAAAAA;
addr[0x02AA] = 0x55555555;
addr[0x0555] = 0x80808080;
addr[0x0555] = 0xAAAAAAAA;
addr[0x02AA] = 0x55555555;
#endif
/* Start erase on unprotected sectors */
for (sect = s_first; sect <= s_last; sect++) {
if (info->protect[sect] == 0) { /* not protected */
addr = (vu_long *) (info->start[sect]);
#if 0
addr[0] = 0x00300030;
#else
addr[0] = 0x30303030;
#endif
l_sect = sect;
}
}
@ -490,15 +426,11 @@ int flash_erase (flash_info_t * info, int s_first, int s_last)
start = get_timer (0);
last = start;
addr = (vu_long *) (info->start[l_sect]);
#if 0
while ((addr[0] & 0x00800080) != 0x00800080)
#else
while ((addr[0] & 0xFFFFFFFF) != 0xFFFFFFFF)
#endif
{
if ((now = get_timer (start)) > CFG_FLASH_ERASE_TOUT) {
printf ("Timeout\n");
return 1;
return ERR_TIMOUT;
}
/* show that we're waiting */
if ((now - last) > 1000) { /* every second */
@ -510,13 +442,10 @@ int flash_erase (flash_info_t * info, int s_first, int s_last)
DONE:
/* reset to read mode */
addr = (volatile unsigned long *) info->start[0];
#if 0
addr[0] = 0x00F000F0; /* reset bank */
#else
addr[0] = 0xF0F0F0F0; /* reset bank */
#endif
printf (" done\n");
return 0;
}
@ -526,7 +455,6 @@ int flash_erase (flash_info_t * info, int s_first, int s_last)
* 1 - write timeout
* 2 - Flash not erased
*/
int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
{
ulong cp, wp, data;
@ -605,20 +533,14 @@ static int write_word (flash_info_t * info, ulong dest, ulong data)
/* Check if Flash is (sufficiently) erased */
if ((*((vu_long *) dest) & data) != data) {
return (2);
return ERR_NOT_ERASED;
}
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts ();
#if 0
addr[0x0555] = 0x00AA00AA;
addr[0x02AA] = 0x00550055;
addr[0x0555] = 0x00A000A0;
#else
addr[0x0555] = 0xAAAAAAAA;
addr[0x02AA] = 0x55555555;
addr[0x0555] = 0xA0A0A0A0;
#endif
*((vu_long *) dest) = data;
@ -628,18 +550,11 @@ static int write_word (flash_info_t * info, ulong dest, ulong data)
/* data polling for D7 */
start = get_timer (0);
#if 0
while ((*((vu_long *) dest) & 0x00800080) != (data & 0x00800080))
#else
while ((*((vu_long *) dest) & 0x80808080) != (data & 0x80808080))
#endif
{
if (get_timer (start) > CFG_FLASH_WRITE_TOUT) {
return (1);
return ERR_TIMOUT;
}
}
return (0);
}
/*-----------------------------------------------------------------------
*/

2
board/fads/u-boot.lds
View file

@ -52,7 +52,7 @@ SECTIONS
{
cpu/mpc8xx/start.o (.text)
. = DEFINED(env_offset) ? env_offset : .;
/*. = DEFINED(env_offset) ? env_offset : .;*/
common/environment.o (.ppcenv)
*(.text)