+++ /dev/null
-/*
- * (C) Copyright 2000
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <mpc8xx.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-#if defined(CONFIG_ENV_IS_IN_FLASH)
-# ifndef CONFIG_ENV_ADDR
-# define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)
-# endif
-# ifndef CONFIG_ENV_SIZE
-# define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE
-# endif
-# ifndef CONFIG_ENV_SECT_SIZE
-# define CONFIG_ENV_SECT_SIZE CONFIG_ENV_SIZE
-# endif
-#endif
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-static ulong flash_get_size (vu_long *addr, flash_info_t *info);
-static int write_data (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 *)CONFIG_SYS_IMMR;
- volatile memctl8xx_t *memctl = &immap->im_memctl;
- unsigned long size_b0;
- int i;
-
- /* Init: no FLASHes known */
- for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- }
-
- /* Static FLASH Bank configuration here - FIXME XXX */
-
- size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
-
- if (flash_info[0].flash_id == FLASH_UNKNOWN) {
- printf ("## Unknown FLASH on Bank 0: "
- "ID 0x%lx, Size = 0x%08lx = %ld MB\n",
- flash_info[0].flash_id,
- size_b0, size_b0<<20);
- }
-
- /* Remap FLASH according to real size */
- memctl->memc_or0 = CONFIG_SYS_OR_TIMING_FLASH | (-size_b0 & 0xFFFF8000);
- memctl->memc_br0 = (CONFIG_SYS_FLASH_BASE & BR_BA_MSK) | \
- BR_MS_GPCM | BR_PS_16 | BR_V;
-
- /* Re-do sizing to get full correct info */
- size_b0 = flash_get_size((vu_long *)CONFIG_SYS_FLASH_BASE, &flash_info[0]);
-
- flash_get_offsets (CONFIG_SYS_FLASH_BASE, &flash_info[0]);
-
- flash_info[0].size = size_b0;
-
-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
- /* monitor protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
- &flash_info[0]);
-#endif
-
-#ifdef CONFIG_ENV_IS_IN_FLASH
- /* ENV protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1,
- &flash_info[0]);
-#endif
-
- return (size_b0);
-}
-
-/*-----------------------------------------------------------------------
- */
-static void flash_get_offsets (ulong base, flash_info_t *info)
-{
- int i;
-
- if (info->flash_id == FLASH_UNKNOWN) {
- return;
- }
-
- switch (info->flash_id & FLASH_VENDMASK) {
- case FLASH_MAN_MT:
- if (info->flash_id & FLASH_BTYPE) {
- /* set sector offsets for bottom boot block type */
- 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-3) * 0x00020000);
- }
- } else {
- /* set sector offsets for top boot block type */
- i = info->sector_count - 1;
- info->start[i--] = base + info->size - 0x00004000;
- info->start[i--] = base + info->size - 0x00006000;
- info->start[i--] = base + info->size - 0x00008000;
- for (; i >= 0; i--) {
- info->start[i] = base + i * 0x00020000;
- }
- }
- return;
-
- case FLASH_MAN_SST:
- for (i = 0; i < info->sector_count; i++) {
- info->start[i] = base + (i * 0x00002000);
- }
- return;
-
- case FLASH_MAN_AMD:
- case FLASH_MAN_FUJ:
-
- /* set up sector start address table */
- if (info->flash_id & FLASH_BTYPE) {
- /* 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;
- }
- } else {
- /* 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;
- }
- }
- return;
- default:
- printf ("Don't know sector ofsets for flash type 0x%lx\n",
- info->flash_id);
- return;
- }
-}
-
-/*-----------------------------------------------------------------------
- */
-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_FUJ: printf ("Fujitsu "); break;
- case FLASH_MAN_SST: printf ("SST "); break;
- case FLASH_MAN_STM: printf ("STM "); break;
- case FLASH_MAN_MT: printf ("MT "); break;
- case FLASH_MAN_INTEL: printf ("Intel "); break;
- default: printf ("Unknown Vendor "); break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- 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_AM800B: printf ("AM29LV800B (8 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM800T: printf ("AM29LV800T (8 Mbit, top boot sector)\n");
- break;
- 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");
- break;
- case FLASH_SST200A: printf ("39xF200A (2M = 128K x 16)\n");
- break;
- case FLASH_SST400A: printf ("39xF400A (4M = 256K x 16)\n");
- break;
- case FLASH_SST800A: printf ("39xF800A (8M = 512K x 16)\n");
- break;
- case FLASH_STM800AB: printf ("M29W800AB (8M = 512K x 16)\n");
- break;
- case FLASH_28F008S5: printf ("28F008S5 (1M = 64K x 16)\n");
- break;
- case FLASH_28F400_T: printf ("28F400B3 (4Mbit, top boot sector)\n");
- break;
- case FLASH_28F400_B: printf ("28F400B3 (4Mbit, bottom boot sector)\n");
- break;
- default: printf ("Unknown Chip Type\n");
- break;
- }
-
- if (info->size >= (1 << 20)) {
- i = 20;
- } else {
- i = 10;
- }
- printf (" Size: %ld %cB in %d Sectors\n",
- info->size >> i,
- (i == 20) ? 'M' : 'k',
- 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!
- */
-
-static ulong flash_get_size (vu_long *addr, flash_info_t *info)
-{
- ushort value;
- vu_short *saddr = (vu_short *)addr;
-
- /* Read Manufacturer ID */
- saddr[0] = 0x0090;
- value = saddr[0];
-
- switch (value) {
- case (AMD_MANUFACT & 0xFFFF):
- info->flash_id = FLASH_MAN_AMD;
- break;
- case (FUJ_MANUFACT & 0xFFFF):
- info->flash_id = FLASH_MAN_FUJ;
- break;
- case (SST_MANUFACT & 0xFFFF):
- info->flash_id = FLASH_MAN_SST;
- break;
- case (STM_MANUFACT & 0xFFFF):
- info->flash_id = FLASH_MAN_STM;
- break;
- case (MT_MANUFACT & 0xFFFF):
- info->flash_id = FLASH_MAN_MT;
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- saddr[0] = 0x00FF; /* restore read mode */
- return (0); /* no or unknown flash */
- }
-
- value = saddr[1]; /* device ID */
-
- switch (value) {
- case (AMD_ID_LV400T & 0xFFFF):
- info->flash_id += FLASH_AM400T;
- info->sector_count = 11;
- info->size = 0x00100000;
- break; /* => 1 MB */
-
- case (AMD_ID_LV400B & 0xFFFF):
- info->flash_id += FLASH_AM400B;
- info->sector_count = 11;
- info->size = 0x00100000;
- break; /* => 1 MB */
-
- case (AMD_ID_LV800T & 0xFFFF):
- info->flash_id += FLASH_AM800T;
- info->sector_count = 19;
- info->size = 0x00200000;
- break; /* => 2 MB */
-
- case (AMD_ID_LV800B & 0xFFFF):
- info->flash_id += FLASH_AM800B;
- info->sector_count = 19;
- info->size = 0x00200000;
- break; /* => 2 MB */
-
- case (AMD_ID_LV160T & 0xFFFF):
- info->flash_id += FLASH_AM160T;
- info->sector_count = 35;
- info->size = 0x00400000;
- break; /* => 4 MB */
-
- case (AMD_ID_LV160B & 0xFFFF):
- info->flash_id += FLASH_AM160B;
- info->sector_count = 35;
- info->size = 0x00400000;
- break; /* => 4 MB */
-#if 0 /* enable when device IDs are available */
- case (AMD_ID_LV320T & 0xFFFF):
- info->flash_id += FLASH_AM320T;
- info->sector_count = 67;
- info->size = 0x00800000;
- break; /* => 8 MB */
-
- case (AMD_ID_LV320B & 0xFFFF):
- info->flash_id += FLASH_AM320B;
- info->sector_count = 67;
- info->size = 0x00800000;
- break; /* => 8 MB */
-#endif
- case (SST_ID_xF200A & 0xFFFF):
- info->flash_id += FLASH_SST200A;
- info->sector_count = 64; /* 39xF200A ID ( 2M = 128K x 16 ) */
- info->size = 0x00080000;
- break;
- case (SST_ID_xF400A & 0xFFFF):
- info->flash_id += FLASH_SST400A;
- info->sector_count = 128; /* 39xF400A ID ( 4M = 256K x 16 ) */
- info->size = 0x00100000;
- break;
- case (SST_ID_xF800A & 0xFFFF):
- info->flash_id += FLASH_SST800A;
- info->sector_count = 256; /* 39xF800A ID ( 8M = 512K x 16 ) */
- info->size = 0x00200000;
- break; /* => 2 MB */
- case (STM_ID_x800AB & 0xFFFF):
- info->flash_id += FLASH_STM800AB;
- info->sector_count = 19;
- info->size = 0x00200000;
- break; /* => 2 MB */
- case (MT_ID_28F400_T & 0xFFFF):
- info->flash_id += FLASH_28F400_T;
- info->sector_count = 7;
- info->size = 0x00080000;
- break; /* => 512 kB */
- case (MT_ID_28F400_B & 0xFFFF):
- info->flash_id += FLASH_28F400_B;
- info->sector_count = 7;
- info->size = 0x00080000;
- break; /* => 512 kB */
- default:
- info->flash_id = FLASH_UNKNOWN;
- saddr[0] = 0x00FF; /* restore read mode */
- return (0); /* => no or unknown flash */
-
- }
-
- if (info->sector_count > CONFIG_SYS_MAX_FLASH_SECT) {
- printf ("** ERROR: sector count %d > max (%d) **\n",
- info->sector_count, CONFIG_SYS_MAX_FLASH_SECT);
- info->sector_count = CONFIG_SYS_MAX_FLASH_SECT;
- }
-
- saddr[0] = 0x00FF; /* restore read mode */
-
- return (info->size);
-}
-
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase (flash_info_t *info, int s_first, int s_last)
-{
- int flag, prot, sect;
- ulong start, now, 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_VENDMASK) != FLASH_MAN_MT) {
- printf ("Can erase only MT flash types - aborted\n");
- 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");
- }
-
- start = get_timer (0);
- last = start;
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- vu_short *addr = (vu_short *)(info->start[sect]);
- unsigned short status;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- *addr = 0x0050; /* clear status register */
- *addr = 0x0020; /* erase setup */
- *addr = 0x00D0; /* erase confirm */
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* wait at least 80us - let's wait 1 ms */
- udelay (1000);
-
- while (((status = *addr) & 0x0080) != 0x0080) {
- if ((now=get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
- *addr = 0x00FF; /* reset to read mode */
- return 1;
- }
-
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- putc ('.');
- last = now;
- }
- }
-
- *addr = 0x00FF; /* reset to read mode */
- }
- }
- printf (" done\n");
- return 0;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- * 4 - Flash not identified
- */
-
-#define FLASH_WIDTH 2 /* flash bus width in bytes */
-
-int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
-{
- ulong cp, wp, data;
- int i, l, rc;
-
- if (info->flash_id == FLASH_UNKNOWN) {
- return 4;
- }
-
- wp = (addr & ~(FLASH_WIDTH-1)); /* get lower FLASH_WIDTH aligned address */
-
- /*
- * handle unaligned start bytes
- */
- if ((l = addr - wp) != 0) {
- data = 0;
- for (i=0, cp=wp; i<l; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
- for (; i<FLASH_WIDTH && cnt>0; ++i) {
- data = (data << 8) | *src++;
- --cnt;
- ++cp;
- }
- for (; cnt==0 && i<FLASH_WIDTH; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- if ((rc = write_data(info, wp, data)) != 0) {
- return (rc);
- }
- wp += FLASH_WIDTH;
- }
-
- /*
- * handle FLASH_WIDTH aligned part
- */
- while (cnt >= FLASH_WIDTH) {
- data = 0;
- for (i=0; i<FLASH_WIDTH; ++i) {
- data = (data << 8) | *src++;
- }
- if ((rc = write_data(info, wp, data)) != 0) {
- return (rc);
- }
- wp += FLASH_WIDTH;
- cnt -= FLASH_WIDTH;
- }
-
- if (cnt == 0) {
- return (0);
- }
-
- /*
- * handle unaligned tail bytes
- */
- data = 0;
- for (i=0, cp=wp; i<FLASH_WIDTH && cnt>0; ++i, ++cp) {
- data = (data << 8) | *src++;
- --cnt;
- }
- for (; i<FLASH_WIDTH; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- return (write_data(info, wp, data));
-}
-
-/*-----------------------------------------------------------------------
- * Write a word to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_data (flash_info_t *info, ulong dest, ulong data)
-{
- vu_short *addr = (vu_short *)dest;
- ushort sdata = (ushort)data;
- ushort status;
- ulong start;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*addr & sdata) != sdata) {
- return (2);
- }
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- *addr = 0x0040; /* write setup */
- *addr = sdata;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- start = get_timer (0);
-
- while (((status = *addr) & 0x0080) != 0x0080) {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- *addr = 0x00FF; /* restore read mode */
- return (1);
- }
- }
-
- *addr = 0x00FF; /* restore read mode */
-
- return (0);
-}
-
-/*-----------------------------------------------------------------------
- */
projects / oweals / u-boot.git / blobdiff