* Patch by Tolunay Orkun, 5 Mar 2004:
Fix early board initialization for Cogent CSB272 board
* Patch by Ed Okerson, 3 Mar 2004:
fix CFI flash writes for little endian systems
* Patch by Reinhard Meyer, 01 Mar 2004:
generalize USB and IDE support for MPC5200 with according
changes to IceCube.h and TOP5200.h
add Am29LV256 256 MBit FLASH support for TOP5200 boards
add info about USB and IDE to README
diff --git a/board/emk/common/flash.c b/board/emk/common/flash.c
index adfa9a0..966bb5c 100644
--- a/board/emk/common/flash.c
+++ b/board/emk/common/flash.c
@@ -40,9 +40,11 @@
#define FLASH_CYCLE2 0x02aa
#define FLASH_ID1 0
#define FLASH_ID2 1
+ #define FLASH_ID3 0x0e
+ #define FLASH_ID4 0x0F
#endif
-#if defined (CONFIG_TOP5200)
+#if defined (CONFIG_TOP5200) && !defined (CONFIG_LITE5200)
typedef unsigned char FLASH_PORT_WIDTH;
typedef volatile unsigned char FLASH_PORT_WIDTHV;
#define FLASH_ID_MASK 0xFF
@@ -54,6 +56,24 @@
#define FLASH_CYCLE2 0x0555
#define FLASH_ID1 0
#define FLASH_ID2 2
+ #define FLASH_ID3 0x1c
+ #define FLASH_ID4 0x1E
+#endif
+
+#if defined (CONFIG_TOP5200) && defined (CONFIG_LITE5200)
+ typedef unsigned char FLASH_PORT_WIDTH;
+ typedef volatile unsigned char FLASH_PORT_WIDTHV;
+ #define FLASH_ID_MASK 0xFF
+
+ #define FPW FLASH_PORT_WIDTH
+ #define FPWV FLASH_PORT_WIDTHV
+
+ #define FLASH_CYCLE1 0x0555
+ #define FLASH_CYCLE2 0x02aa
+ #define FLASH_ID1 0
+ #define FLASH_ID2 1
+ #define FLASH_ID3 0x0E
+ #define FLASH_ID4 0x0F
#endif
/*-----------------------------------------------------------------------
@@ -183,6 +203,15 @@
case FLASH_AM160B:
fmt = "29LV160%s (16 Mbit, %s)\n";
break;
+ case FLASH_AMLV640U:
+ fmt = "29LV640M (64 Mbit)\n";
+ break;
+ case FLASH_AMDLV065D:
+ fmt = "29LV065D (64 Mbit)\n";
+ break;
+ case FLASH_AMLV256U:
+ fmt = "29LV256M (256 Mbit)\n";
+ break;
default:
fmt = "Unknown Chip Type\n";
break;
@@ -239,7 +268,6 @@
ulong flash_get_size (FPWV *addr, flash_info_t *info)
{
int i;
- ulong offset;
/* Write auto select command: read Manufacturer ID */
/* Write auto select command sequence and test FLASH answer */
@@ -278,27 +306,64 @@
info->flash_id += FLASH_AM160B;
info->sector_count = 35;
info->size = 0x00200000;
-#ifdef CFG_LOWBOOT
- offset = 0;
-#else
- offset = 0x00e00000;
-#endif
- info->start[0] = (ulong)addr + offset;
- info->start[1] = (ulong)addr + offset + 0x4000;
- info->start[2] = (ulong)addr + offset + 0x6000;
- info->start[3] = (ulong)addr + offset + 0x8000;
+ info->start[0] = (ulong)addr;
+ info->start[1] = (ulong)addr + 0x4000;
+ info->start[2] = (ulong)addr + 0x6000;
+ info->start[3] = (ulong)addr + 0x8000;
for (i = 4; i < info->sector_count; i++)
{
- info->start[i] = (ulong)addr + offset + 0x10000 * (i-3);
+ info->start[i] = (ulong)addr + 0x10000 * (i-3);
}
break;
+ case (FPW)AMD_ID_LV065D:
+ info->flash_id += FLASH_AMDLV065D;
+ info->sector_count = 128;
+ info->size = 0x00800000;
+ for (i = 0; i < info->sector_count; i++)
+ {
+ info->start[i] = (ulong)addr + 0x10000 * i;
+ }
+ break;
+
+ case (FPW)AMD_ID_MIRROR:
+ /* MIRROR BIT FLASH, read more ID bytes */
+ if ((FPW)addr[FLASH_ID3] == (FPW)AMD_ID_LV640U_2 &&
+ (FPW)addr[FLASH_ID4] == (FPW)AMD_ID_LV640U_3)
+ {
+ info->flash_id += FLASH_AMLV640U;
+ info->sector_count = 128;
+ info->size = 0x00800000;
+ for (i = 0; i < info->sector_count; i++)
+ {
+ info->start[i] = (ulong)addr + 0x10000 * i;
+ }
+ break;
+ }
+ if ((FPW)addr[FLASH_ID3] == (FPW)AMD_ID_LV256U_2 &&
+ (FPW)addr[FLASH_ID4] == (FPW)AMD_ID_LV256U_3)
+ {
+ /* attention: only the first 16 MB will be used in u-boot */
+ info->flash_id += FLASH_AMLV256U;
+ info->sector_count = 256;
+ info->size = 0x01000000;
+ for (i = 0; i < info->sector_count; i++)
+ {
+ info->start[i] = (ulong)addr + 0x10000 * i;
+ }
+ break;
+ }
+
+ /* fall thru to here ! */
default:
- printf ("unknown AMD device=%x ", (FPW)addr[FLASH_ID2]);
+ printf ("unknown AMD device=%x %x %x",
+ (FPW)addr[FLASH_ID2],
+ (FPW)addr[FLASH_ID3],
+ (FPW)addr[FLASH_ID4]);
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
- info->size = 0;
- return (0); /* => no or unknown flash */
+ info->size = 0x800000;
+ break;
}
/* Put FLASH back in read mode */
@@ -329,6 +394,7 @@
switch (info->flash_id & FLASH_TYPEMASK) {
case FLASH_AM160B:
+ case FLASH_AMLV640U:
break;
case FLASH_UNKNOWN:
default: