Hi,
This patch adds support for 8MB flash SIMM and JFFS2 file system on
Motorola FADS board and its derivatives (MPC86xADS, MPC885ADS).
--
========================================================================
Yuli Barcohen | Phone +972-9-765-1788 | Software Project Leader
yuli(a)arabellasw.com | Fax +972-9-765-7494 | Arabella Software, Israel
========================================================================
Index: board/fads/fads.h
===================================================================
RCS file: /home/CVS/u-boot/u-boot/board/fads/fads.h,v
retrieving revision 1.1.1.3
retrieving revision 1.6
diff -p -u -r1.1.1.3 -r1.6
--- board/fads/fads.h 9 Jun 2004 11:31:55 -0000 1.1.1.3
+++ board/fads/fads.h 9 Jun 2004 12:43:11 -0000 1.6
@@ -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)
Index: board/fads/flash.c
===================================================================
RCS file: /home/CVS/u-boot/u-boot/board/fads/flash.c,v
retrieving revision 1.1.1.4
retrieving revision 1.2
diff -p -u -r1.1.1.4 -r1.2
--- board/fads/flash.c 9 Jun 2004 11:31:55 -0000 1.1.1.4
+++ board/fads/flash.c 9 Jun 2004 12:43:11 -0000 1.2
@@ -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_BA
# 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 */
}
- total_size = 0;
- size_b0 = 0xffffffff;
+ switch ((bcsr[2] & BCSR2_FLASH_PD_MASK) >> BCSR2_FLASH_PD_SHIFT) {
+ case 2:
+ case 4:
+ case 6:
+ pd_size = 0x800000;
+ or_am = 0xFF800000;
+ break;
- for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
- size_b1 =
- flash_get_size ((vu_long *) (CFG_FLASH_BASE +
- total_size),
- &flash_info[i]);
+ case 5:
+ case 7:
+ pd_size = 0x400000;
+ or_am = 0xFFC00000;
+ break;
- 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);
- }
+ case 8:
+ pd_size = 0x200000;
+ or_am = 0xFFE00000;
+ break;
- /* 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;
+ default:
+ pd_size = 0;
+ or_am = 0xFFE00000;
+ printf("## Unsupported flash detected by BCSR: 0x%08X\n", bcsr[2]);
}
- /* Compute the Address Mask */
- for (i = 0; (total_size >> i) != 0; ++i) {
+ total_size = 0;
+ 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, bsize, bsize >> 20);
+ }
+
+ total_size += bsize;
}
- 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 * in
}
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 * a
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 * a
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 * a
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 * a
}
}
#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 * a
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, in
} 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, in
/* 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, in
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, in
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, in
* 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 * in
/* 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 * in
/* 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);
}
-
-/*-----------------------------------------------------------------------
- */
Index: board/fads/u-boot.lds
===================================================================
RCS file: /home/CVS/u-boot/u-boot/board/fads/u-boot.lds,v
retrieving revision 1.1.1.4
retrieving revision 1.3
diff -p -u -r1.1.1.4 -r1.3
--- board/fads/u-boot.lds 22 Dec 2003 14:36:04 -0000 1.1.1.4
+++ board/fads/u-boot.lds 22 Jan 2004 21:14:32 -0000 1.3
@@ -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)
