/*
- * (C) Copyright 2000-2002
+ * (C) Copyright 2000-2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* MA 02111-1307 USA
*/
-/* #define DEBUG */
+#if 0
+#define DEBUG
+#endif
#include <common.h>
#include <mpc8xx.h>
+#include <environment.h>
+
+#include <asm/processor.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M)
+# ifndef CFG_OR_TIMING_FLASH_AT_50MHZ
+# define CFG_OR_TIMING_FLASH_AT_50MHZ (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
+ OR_SCY_2_CLK | OR_EHTR | OR_BI)
+# endif
+#endif /* CONFIG_TQM8xxL/M, !TQM866M */
#ifndef CFG_ENV_ADDR
#define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
unsigned long size_b0, size_b1;
int i;
+#ifdef CFG_OR_TIMING_FLASH_AT_50MHZ
+ int scy, trlx, flash_or_timing, clk_diff;
+
+ scy = (CFG_OR_TIMING_FLASH_AT_50MHZ & OR_SCY_MSK) >> 4;
+ if (CFG_OR_TIMING_FLASH_AT_50MHZ & OR_TRLX) {
+ trlx = OR_TRLX;
+ scy *= 2;
+ } else
+ trlx = 0;
+
+ /* We assume that each 10MHz of bus clock require 1-clk SCY
+ * adjustment.
+ */
+ clk_diff = (gd->bus_clk / 1000000) - 50;
+
+ /* We need proper rounding here. This is what the "+5" and "-5"
+ * are here for.
+ */
+ if (clk_diff >= 0)
+ scy += (clk_diff + 5) / 10;
+ else
+ scy += (clk_diff - 5) / 10;
+
+ /* For bus frequencies above 50MHz, we want to use relaxed timing
+ * (OR_TRLX).
+ */
+ if (gd->bus_clk >= 50000000)
+ trlx = OR_TRLX;
+ else
+ trlx = 0;
+
+ if (trlx)
+ scy /= 2;
+
+ if (scy > 0xf)
+ scy = 0xf;
+ if (scy < 1)
+ scy = 1;
+
+ flash_or_timing = (scy << 4) | trlx |
+ (CFG_OR_TIMING_FLASH_AT_50MHZ & ~(OR_TRLX | OR_SCY_MSK));
+#endif
/* Init: no FLASHes known */
for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
flash_info[i].flash_id = FLASH_UNKNOWN;
memctl->memc_br1, memctl->memc_or1);
/* Remap FLASH according to real size */
+#ifndef CFG_OR_TIMING_FLASH_AT_50MHZ
memctl->memc_or0 = CFG_OR_TIMING_FLASH | (-size_b0 & OR_AM_MSK);
+#else
+ memctl->memc_or0 = flash_or_timing | (-size_b0 & OR_AM_MSK);
+#endif
memctl->memc_br0 = (CFG_FLASH_BASE & BR_BA_MSK) | BR_MS_GPCM | BR_V;
debug ("## BR0: 0x%08x OR0: 0x%08x\n",
#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
/* monitor protection ON by default */
+ debug ("Protect monitor: %08lx ... %08lx\n",
+ (ulong)CFG_MONITOR_BASE,
+ (ulong)CFG_MONITOR_BASE + monitor_flash_len - 1);
+
flash_protect(FLAG_PROTECT_SET,
CFG_MONITOR_BASE,
- CFG_MONITOR_BASE+monitor_flash_len-1,
+ CFG_MONITOR_BASE + monitor_flash_len - 1,
&flash_info[0]);
#endif
#ifdef CFG_ENV_IS_IN_FLASH
/* ENV protection ON by default */
+# ifdef CFG_ENV_ADDR_REDUND
+ debug ("Protect primary environment: %08lx ... %08lx\n",
+ (ulong)CFG_ENV_ADDR,
+ (ulong)CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1);
+# else
+ debug ("Protect environment: %08lx ... %08lx\n",
+ (ulong)CFG_ENV_ADDR,
+ (ulong)CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1);
+# endif
+
flash_protect(FLAG_PROTECT_SET,
CFG_ENV_ADDR,
- CFG_ENV_ADDR+CFG_ENV_SIZE-1,
+ CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1,
+ &flash_info[0]);
+#endif
+
+#ifdef CFG_ENV_ADDR_REDUND
+ debug ("Protect redundand environment: %08lx ... %08lx\n",
+ (ulong)CFG_ENV_ADDR_REDUND,
+ (ulong)CFG_ENV_ADDR_REDUND + CFG_ENV_SECT_SIZE - 1);
+
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_ENV_ADDR_REDUND,
+ CFG_ENV_ADDR_REDUND + CFG_ENV_SECT_SIZE - 1,
&flash_info[0]);
#endif
if (size_b1) {
+#ifndef CFG_OR_TIMING_FLASH_AT_50MHZ
memctl->memc_or1 = CFG_OR_TIMING_FLASH | (-size_b1 & 0xFFFF8000);
+#else
+ memctl->memc_or1 = flash_or_timing | (-size_b1 & 0xFFFF8000);
+#endif
memctl->memc_br1 = ((CFG_FLASH_BASE + size_b0) & BR_BA_MSK) |
BR_MS_GPCM | BR_V;
}
switch (info->flash_id & FLASH_TYPEMASK) {
+#ifdef CONFIG_TQM8xxM /* mirror bit flash */
+ case FLASH_AMLV128U: printf ("AM29LV128ML (128Mbit, uniform sector size)\n");
+ break;
+ case FLASH_AMLV320U: printf ("AM29LV320ML (32Mbit, uniform sector size)\n");
+ break;
+ case FLASH_AMLV640U: printf ("AM29LV640ML (64Mbit, uniform sector size)\n");
+ break;
+ case FLASH_AMLV320B: printf ("AM29LV320MB (32Mbit, bottom boot sect)\n");
+ break;
+# else /* ! TQM8xxM */
case FLASH_AM400B: printf ("AM29LV400B (4 Mbit, bottom boot sect)\n");
break;
case FLASH_AM400T: printf ("AM29LV400T (4 Mbit, top boot sector)\n");
break;
case FLASH_AM800T: printf ("AM29LV800T (8 Mbit, top boot sector)\n");
break;
+ case FLASH_AM320B: printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
+ break;
+ case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\n");
+ break;
+#endif /* TQM8xxM */
case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");
break;
case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n");
break;
- case FLASH_AM320B: printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\n");
+ case FLASH_AMDL163B: printf ("AM29DL163B (16 Mbit, bottom boot sect)\n");
break;
default: printf ("Unknown Chip Type\n");
break;
switch (value) {
case AMD_MANUFACT:
+ debug ("Manufacturer: AMD\n");
info->flash_id = FLASH_MAN_AMD;
break;
case FUJ_MANUFACT:
+ debug ("Manufacturer: FUJITSU\n");
info->flash_id = FLASH_MAN_FUJ;
break;
default:
+ debug ("Manufacturer: *** unknown ***\n");
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
info->size = 0;
debug ("Device ID @ 0x%08lx: 0x%08lx\n", (ulong)(&addr[1]), value);
switch (value) {
+#ifdef CONFIG_TQM8xxM /* mirror bit flash */
+ case AMD_ID_MIRROR:
+ debug ("Mirror Bit flash: addr[14] = %08lX addr[15] = %08lX\n",
+ addr[14], addr[15]);
+ /* Special case for AMLV320MH/L */
+ if ((addr[14] & 0x00ff00ff) == 0x001d001d &&
+ (addr[15] & 0x00ff00ff) == 0x00000000) {
+ debug ("Chip: AMLV320MH/L\n");
+ info->flash_id += FLASH_AMLV320U;
+ info->sector_count = 64;
+ info->size = 0x00800000; /* => 8 MB */
+ break;
+ }
+ switch(addr[14]) {
+ case AMD_ID_LV128U_2:
+ if (addr[15] != AMD_ID_LV128U_3) {
+ debug ("Chip: AMLV128U -> unknown\n");
+ info->flash_id = FLASH_UNKNOWN;
+ } else {
+ debug ("Chip: AMLV128U\n");
+ info->flash_id += FLASH_AMLV128U;
+ info->sector_count = 256;
+ info->size = 0x02000000;
+ }
+ break; /* => 32 MB */
+ case AMD_ID_LV640U_2:
+ if (addr[15] != AMD_ID_LV640U_3) {
+ debug ("Chip: AMLV640U -> unknown\n");
+ info->flash_id = FLASH_UNKNOWN;
+ } else {
+ debug ("Chip: AMLV640U\n");
+ info->flash_id += FLASH_AMLV640U;
+ info->sector_count = 128;
+ info->size = 0x01000000;
+ }
+ break; /* => 16 MB */
+ case AMD_ID_LV320B_2:
+ if (addr[15] != AMD_ID_LV320B_3) {
+ debug ("Chip: AMLV320B -> unknown\n");
+ info->flash_id = FLASH_UNKNOWN;
+ } else {
+ debug ("Chip: AMLV320B\n");
+ info->flash_id += FLASH_AMLV320B;
+ info->sector_count = 71;
+ info->size = 0x00800000;
+ }
+ break; /* => 8 MB */
+ default:
+ debug ("Chip: *** unknown ***\n");
+ info->flash_id = FLASH_UNKNOWN;
+ break;
+ }
+ break;
+# else /* ! TQM8xxM */
case AMD_ID_LV400T:
info->flash_id += FLASH_AM400T;
info->sector_count = 11;
info->size = 0x00100000;
- break; /* => 1 MB */
+ break; /* => 1 MB */
case AMD_ID_LV400B:
info->flash_id += FLASH_AM400B;
info->sector_count = 11;
info->size = 0x00100000;
- break; /* => 1 MB */
+ break; /* => 1 MB */
case AMD_ID_LV800T:
info->flash_id += FLASH_AM800T;
info->sector_count = 19;
info->size = 0x00200000;
- break; /* => 2 MB */
+ break; /* => 2 MB */
case AMD_ID_LV800B:
info->flash_id += FLASH_AM800B;
info->sector_count = 19;
info->size = 0x00200000;
- break; /* => 2 MB */
+ break; /* => 2 MB */
+
+ case AMD_ID_LV320T:
+ info->flash_id += FLASH_AM320T;
+ info->sector_count = 71;
+ info->size = 0x00800000;
+ break; /* => 8 MB */
+
+ case AMD_ID_LV320B:
+ info->flash_id += FLASH_AM320B;
+ info->sector_count = 71;
+ info->size = 0x00800000;
+ break; /* => 8 MB */
+#endif /* TQM8xxM */
case AMD_ID_LV160T:
info->flash_id += FLASH_AM160T;
info->sector_count = 35;
info->size = 0x00400000;
- break; /* => 4 MB */
+ break; /* => 4 MB */
case AMD_ID_LV160B:
info->flash_id += FLASH_AM160B;
info->sector_count = 35;
info->size = 0x00400000;
- break; /* => 4 MB */
- case AMD_ID_LV320T:
- info->flash_id += FLASH_AM320T;
- info->sector_count = 71;
- info->size = 0x00800000;
- break; /* => 8 MB */
+ break; /* => 4 MB */
+
+ case AMD_ID_DL163B:
+ info->flash_id += FLASH_AMDL163B;
+ info->sector_count = 39;
+ info->size = 0x00400000;
+ break; /* => 4 MB */
- case AMD_ID_LV320B:
- info->flash_id += FLASH_AM320B;
- info->sector_count = 71;
- info->size = 0x00800000;
- break; /* => 8 MB */
- case AMD_ID_DL640:
-debug ("## oops - same ID used for AM29LV128ML/H mirror bit flash ???\n");
- info->flash_id += FLASH_AMDL640;
- info->sector_count = 142;
- info->size = 0x00800000;
- break;
default:
info->flash_id = FLASH_UNKNOWN;
return (0); /* => no or unknown flash */
/* set up sector start address table */
switch (value) {
+#ifdef CONFIG_TQM8xxM /* mirror bit flash */
+ case AMD_ID_MIRROR:
+ switch (info->flash_id & FLASH_TYPEMASK) {
+ /* only known types here - no default */
+ case FLASH_AMLV128U:
+ case FLASH_AMLV640U:
+ case FLASH_AMLV320U:
+ for (i = 0; i < info->sector_count; i++) {
+ info->start[i] = base;
+ base += 0x20000;
+ }
+ break;
+ case FLASH_AMLV320B:
+ for (i = 0; i < info->sector_count; i++) {
+ info->start[i] = base;
+ /*
+ * The first 8 sectors are 8 kB,
+ * all the other ones are 64 kB
+ */
+ base += (i < 8)
+ ? 2 * ( 8 << 10)
+ : 2 * (64 << 10);
+ }
+ break;
+ }
+ break;
+# else /* ! TQM8xxM */
case AMD_ID_LV400B:
case AMD_ID_LV800B:
- case AMD_ID_LV160B:
/* set sector offsets for bottom boot block type */
info->start[0] = base + 0x00000000;
info->start[1] = base + 0x00008000;
break;
case AMD_ID_LV400T:
case AMD_ID_LV800T:
- case AMD_ID_LV160T:
/* set sector offsets for top boot block type */
i = info->sector_count - 1;
info->start[i--] = base + info->size - 0x00008000;
: 2 * ( 8 << 10);
}
break;
+#endif /* TQM8xxM */
+ case AMD_ID_LV160B:
+ /* set sector offsets for bottom boot block type */
+ 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 * 0x00020000) - 0x00060000;
+ }
+ break;
+ case AMD_ID_LV160T:
+ /* set sector offsets for top boot block type */
+ i = info->sector_count - 1;
+ info->start[i--] = base + info->size - 0x00008000;
+ info->start[i--] = base + info->size - 0x0000C000;
+ info->start[i--] = base + info->size - 0x00010000;
+ for (; i >= 0; i--) {
+ info->start[i] = base + i * 0x00020000;
+ }
+ break;
+ case AMD_ID_DL163B:
+ for (i = 0; i < info->sector_count; i++) {
+ info->start[i] = base;
+ /*
+ * The first 8 sectors are 8 kB,
+ * all the other ones are 64 kB
+ */
+ base += (i < 8)
+ ? 2 * ( 8 << 10)
+ : 2 * (64 << 10);
+ }
+ break;
default:
return (0);
break;
}
+#if 0
/* check for protected sectors */
for (i = 0; i < info->sector_count; i++) {
/* read sector protection at sector address, (A7 .. A0) = 0x02 */
addr = (volatile unsigned long *)(info->start[i]);
info->protect[i] = addr[2] & 1;
}
+#endif
/*
* Prevent writes to uninitialized FLASH.
projects / karo-tx-uboot.git / blobdiff