+++ /dev/null
-/*
- * (C) Copyright 2001
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-
-#include <common.h>
-#include <mpc824x.h>
-
-#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
-
-
-/*---------------------------------------------------------------------*/
-#define DEBUG_FLASH
-
-#ifdef DEBUG_FLASH
-#define DEBUGF(fmt,args...) printf(fmt ,##args)
-#else
-#define DEBUGF(fmt,args...)
-#endif
-/*---------------------------------------------------------------------*/
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-static ulong flash_get_size (vu_char *addr, flash_info_t *info);
-static int write_data (flash_info_t *info, uchar *dest, uchar data);
-static void flash_get_offsets (ulong base, flash_info_t *info);
-
-#define BS(b) (b)
-#define BYTEME(x) ((x) & 0xFF)
-
-/*-----------------------------------------------------------------------
- */
-
-unsigned long flash_init (void)
-{
- unsigned long flash_banks[CONFIG_SYS_MAX_FLASH_BANKS] = CONFIG_SYS_FLASH_BANKS;
- unsigned long size, size_b[CONFIG_SYS_MAX_FLASH_BANKS];
-
- int i;
-
- /* Init: no FLASHes known */
- for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i)
- {
- flash_info[i].flash_id = FLASH_UNKNOWN;
-
- DEBUGF("Get flash bank %d @ 0x%08lx\n", i, flash_banks[i]);
-/*
- size_b[i] = flash_get_size((vu_char *)flash_banks[i], &flash_info[i]);
-*/
- size_b[i] = flash_get_size((vu_char *) 0xff800000 , &flash_info[i]);
-
- if (flash_info[i].flash_id == FLASH_UNKNOWN)
- {
- printf ("## Unknown FLASH on Bank %d: "
- "ID 0x%lx, Size = 0x%08lx = %ld MB\n",
- i, flash_info[i].flash_id,
- size_b[i], size_b[i]<<20);
- }
- else
- {
- DEBUGF("## Flash bank %d at 0x%08lx sizes: 0x%08lx \n",
- i, flash_banks[i], size_b[i]);
-
- flash_get_offsets (flash_banks[i], &flash_info[i]);
- flash_info[i].size = size_b[i];
- }
- }
-
-
-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
- DEBUGF("protect monitor %x @ %x\n", CONFIG_SYS_MONITOR_BASE, CONFIG_SYS_MONITOR_LEN);
- /* monitor protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE+CONFIG_SYS_MONITOR_LEN-1,
- &flash_info[0]);
-#endif
-
-#ifdef CONFIG_ENV_IS_IN_FLASH
- /* ENV protection ON by default */
- DEBUGF("protect environtment %x @ %x\n", CONFIG_ENV_ADDR, CONFIG_ENV_SECT_SIZE);
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1,
- &flash_info[0]);
-#endif
-
- size = 0;
- DEBUGF("## Final Flash bank sizes: ");
- for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i)
- {
- DEBUGF("%08lx ", size_b[i]);
- size += size_b[i];
- }
- DEBUGF("\n");
- return (size);
-}
-
-/*-----------------------------------------------------------------------
- */
-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_INTEL:
- for (i = 0; i < info->sector_count; i++) {
- info->start[i] = base;
- base += 0x00020000; /* 128k per bank */
- }
- 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_INTEL: printf ("Intel "); break;
- case FLASH_MAN_MT: printf ("MT "); break;
- default: printf ("Unknown Vendor "); break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_28F320J3A:
- printf ("28F320J3A (32Mbit = 128K x 32)\n");
- break;
- case FLASH_28F640J3A:
- printf ("28F640J3A (64Mbit = 128K x 64)\n");
- break;
- case FLASH_28F128J3A:
- printf ("28F128J3A (128Mbit = 128K x 128)\n");
- break;
- default:
- printf ("Unknown Chip Type\n");
- break;
- }
-
-#if 1
- 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");
-#endif
- return;
-}
-
-/*-----------------------------------------------------------------------
- */
-
-
-/*-----------------------------------------------------------------------
- */
-
-/*
- * The following code cannot be run from FLASH!
- */
-static ulong flash_get_size (vu_char *addr, flash_info_t *info)
-{
- vu_char manuf, device;
-
- addr[0] = BS(0x90);
- manuf = BS(addr[0]);
- DEBUGF("Manuf. ID @ 0x%08lx: 0x%08x\n", (ulong)addr, manuf);
-
- switch (manuf) {
- case BYTEME(AMD_MANUFACT):
- info->flash_id = FLASH_MAN_AMD;
- break;
- case BYTEME(FUJ_MANUFACT):
- info->flash_id = FLASH_MAN_FUJ;
- break;
- case BYTEME(SST_MANUFACT):
- info->flash_id = FLASH_MAN_SST;
- break;
- case BYTEME(STM_MANUFACT):
- info->flash_id = FLASH_MAN_STM;
- break;
- case BYTEME(INTEL_MANUFACT):
- info->flash_id = FLASH_MAN_INTEL;
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- addr[0] = BS(0xFF); /* restore read mode, (yes, BS is a NOP) */
- return 0; /* no or unknown flash */
- }
-
- device = BS(addr[2]); /* device ID */
-
- DEBUGF("Device ID @ 0x%08lx: 0x%08x\n", (ulong)(&addr[1]), device);
-
- switch (device) {
- case BYTEME(INTEL_ID_28F320J3A):
- info->flash_id += FLASH_28F320J3A;
- info->sector_count = 32;
- info->size = 0x00400000;
- break; /* => 4 MB */
-
- case BYTEME(INTEL_ID_28F640J3A):
- info->flash_id += FLASH_28F640J3A;
- info->sector_count = 64;
- info->size = 0x00800000;
- break; /* => 8 MB */
-
- case BYTEME(INTEL_ID_28F128J3A):
- info->flash_id += FLASH_28F128J3A;
- info->sector_count = 128;
- info->size = 0x01000000;
- break; /* => 16 MB */
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- addr[0] = BS(0xFF); /* restore read mode (yes, a NOP) */
- 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;
- }
-
- addr[0] = BS(0xFF); /* 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_INTEL) {
- printf ("Can erase only Intel 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_char *addr = (vu_char *)(info->start[sect]);
- unsigned long status;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- *addr = BS(0x50); /* clear status register */
- *addr = BS(0x20); /* erase setup */
- *addr = BS(0xD0); /* erase confirm */
-
- /* re-enable interrupts if necessary */
- if (flag) {
- enable_interrupts();
- }
-
- /* wait at least 80us - let's wait 1 ms */
- udelay (1000);
-
- while (((status = BS(*addr)) & BYTEME(0x00800080)) != BYTEME(0x00800080)) {
- if ((now=get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
- *addr = BS(0xB0); /* suspend erase */
- *addr = BS(0xFF); /* reset to read mode */
- return 1;
- }
-
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- putc ('.');
- last = now;
- }
- }
-
- *addr = BS(0xFF); /* 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 1 /* flash bus width in bytes */
-
-int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
-{
- uchar *wp = (uchar *)addr;
- int rc;
-
- if (info->flash_id == FLASH_UNKNOWN) {
- return 4;
- }
-
- while (cnt > 0) {
- if ((rc = write_data(info, wp, *src)) != 0) {
- return rc;
- }
- wp++;
- src++;
- cnt--;
- }
-
- return cnt;
-}
-
-/*-----------------------------------------------------------------------
- * Write a word to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_data (flash_info_t *info, uchar *dest, uchar data)
-{
- vu_char *addr = (vu_char *)dest;
- ulong status;
- ulong start;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ((BS(*addr) & data) != data) {
- return 2;
- }
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- *addr = BS(0x40); /* write setup */
- *addr = data;
-
- /* re-enable interrupts if necessary */
- if (flag) {
- enable_interrupts();
- }
-
- start = get_timer (0);
-
- while (((status = BS(*addr)) & BYTEME(0x00800080)) != BYTEME(0x00800080)) {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- *addr = BS(0xFF); /* restore read mode */
- return 1;
- }
- }
-
- *addr = BS(0xFF); /* restore read mode */
-
- return 0;
-}
-
-/*-----------------------------------------------------------------------
- */
projects / karo-tx-uboot.git / blobdiff