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@@ -1,501 +0,0 @@
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-/*
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- * (C) Copyright 2003
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- * Martin Winistoerfer, martinwinistoerfer@gmx.ch.
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- *
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- * SPDX-License-Identifier: GPL-2.0+
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- */
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-
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-/*
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- * File: flash.c
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- *
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- * Discription: This Driver is for 28F320J3A, 28F640J3A and
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- * 28F128J3A Intel flashs working in 16 Bit mode.
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- * They are single bank flashs.
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- *
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- * Most of this code is taken from existing u-boot
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- * source code.
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- */
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-
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-
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-#include <common.h>
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-#include <mpc5xx.h>
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-
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-#if defined(CONFIG_ENV_IS_IN_FLASH)
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-# ifndef CONFIG_ENV_ADDR
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-# define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)
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-# endif
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-# ifndef CONFIG_ENV_SIZE
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-# define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE
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-# endif
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-# ifndef CONFIG_ENV_SECT_SIZE
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-# define CONFIG_ENV_SECT_SIZE CONFIG_ENV_SIZE
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-# endif
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-#endif
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-
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-#define FLASH_ID_MASK 0xFFFF
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-#define FLASH_BLOCK_SIZE 0x00010000
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-#define FLASH_CMD_READ_ID 0x0090
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-#define FLASH_CMD_RESET 0x00ff
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-#define FLASH_CMD_BLOCK_ERASE 0x0020
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-#define FLASH_CMD_ERASE_CONFIRM 0x00D0
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-#define FLASH_CMD_CLEAR_STATUS 0x0050
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-#define FLASH_CMD_SUSPEND_ERASE 0x00B0
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-#define FLASH_CMD_WRITE 0x0040
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-#define FLASH_CMD_PROTECT 0x0060
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-#define FLASH_CMD_PROTECT_SET 0x0001
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-#define FLASH_CMD_PROTECT_CLEAR 0x00D0
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-#define FLASH_STATUS_DONE 0x0080
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-
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-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
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-
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-/*
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- * Local function prototypes
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- */
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-static ulong flash_get_size (vu_short *addr, flash_info_t *info);
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-static int write_short (flash_info_t *info, ulong dest, ushort data);
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-static void flash_get_offsets (ulong base, flash_info_t *info);
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-
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-/*
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- * Initialize flash
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- */
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-
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-unsigned long flash_init (void)
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-{
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- unsigned long size_b0;
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- int i;
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-
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- /* Init: no FLASHes known */
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- for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
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- flash_info[i].flash_id = FLASH_UNKNOWN;
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- }
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-
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- /* Static FLASH Bank configuration here - FIXME XXX */
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-#if 1
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- debug ("\n## Get flash bank 1 size @ 0x%08x\n",FLASH_BASE0_PRELIM);
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-#endif
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- size_b0 = flash_get_size((vu_short *)FLASH_BASE0_PRELIM, &flash_info[0]);
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-
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- if (flash_info[0].flash_id == FLASH_UNKNOWN) {
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- printf ("## Unknown FLASH on Bank 0: "
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- "ID 0x%lx, Size = 0x%08lx = %ld MB\n",
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- flash_info[0].flash_id,
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- size_b0, size_b0<<20);
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- }
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-
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- flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]);
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-
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- flash_info[0].size = size_b0;
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-
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-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
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- /* monitor protection ON by default */
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- flash_protect(FLAG_PROTECT_SET,
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- CONFIG_SYS_MONITOR_BASE,
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- CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
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- &flash_info[0]);
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-#endif
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-
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-#ifdef CONFIG_ENV_IS_IN_FLASH
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- /* ENV protection ON by default */
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- flash_protect(FLAG_PROTECT_SET,
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- CONFIG_ENV_ADDR,
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- CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1,
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- &flash_info[0]);
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-#endif
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-
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- return size_b0;
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-}
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-
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-/*
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- * Compute start adress of each sector (block)
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- */
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-
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-static void flash_get_offsets (ulong base, flash_info_t *info)
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-{
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- int i;
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-
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- if (info->flash_id == FLASH_UNKNOWN) {
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- return;
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- }
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-
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- switch (info->flash_id & FLASH_VENDMASK) {
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- case FLASH_MAN_INTEL:
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- for (i = 0; i < info->sector_count; i++) {
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- info->start[i] = base + i * FLASH_BLOCK_SIZE;
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- }
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- return;
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-
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- default:
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- printf ("Don't know sector offsets for flash type 0x%lx\n",
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- info->flash_id);
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- return;
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- }
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-}
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-
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-/*
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- * Print flash information
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- */
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-void flash_print_info (flash_info_t *info)
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-{
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- int i;
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-
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- if (info->flash_id == FLASH_UNKNOWN) {
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- printf ("missing or unknown FLASH type\n");
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- return;
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- }
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-
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- switch (info->flash_id & FLASH_VENDMASK) {
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- case FLASH_MAN_AMD: printf ("AMD "); break;
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- case FLASH_MAN_FUJ: printf ("Fujitsu "); break;
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- case FLASH_MAN_SST: printf ("SST "); break;
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- case FLASH_MAN_STM: printf ("STM "); break;
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- case FLASH_MAN_INTEL: printf ("Intel "); break;
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- case FLASH_MAN_MT: printf ("MT "); break;
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- default: printf ("Unknown Vendor "); break;
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- }
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-
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- switch (info->flash_id & FLASH_TYPEMASK) {
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- case FLASH_28F320J3A: printf ("28F320J3A (32Mbit) 16-Bit\n");
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- break;
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- case FLASH_28F640J3A: printf ("28F640J3A (64Mbit) 16-Bit\n");
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- break;
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- case FLASH_28F128J3A: printf ("28F128J3A (128Mbit) 16-Bit\n");
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- break;
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- default: printf ("Unknown Chip Type\n");
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- break;
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- }
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-
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- if (info->size >= (1 << 20)) {
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- i = 20;
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- } else {
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- i = 10;
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- }
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- printf (" Size: %ld %cB in %d Sectors\n",
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- info->size >> i,
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- (i == 20) ? 'M' : 'k',
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- info->sector_count);
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-
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- printf (" Sector Start Addresses:");
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- for (i=0; i<info->sector_count; ++i) {
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- if ((i % 5) == 0)
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- printf ("\n ");
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- printf (" %08lX%s",
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- info->start[i],
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- info->protect[i] ? " (RO)" : " "
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- );
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- }
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- printf ("\n");
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- return;
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-}
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-
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-/*
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- * Get size of flash in bytes.
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- * The following code cannot be run from FLASH!
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- */
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-
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-static ulong flash_get_size (vu_short *addr, flash_info_t *info)
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-{
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- vu_short value;
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-
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- /* Read Manufacturer ID */
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- addr[0] = FLASH_CMD_READ_ID;
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- value = addr[0];
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-
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- switch (value) {
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- case (AMD_MANUFACT & FLASH_ID_MASK):
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- info->flash_id = FLASH_MAN_AMD;
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- break;
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- case (FUJ_MANUFACT & FLASH_ID_MASK):
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- info->flash_id = FLASH_MAN_FUJ;
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- break;
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- case (SST_MANUFACT & FLASH_ID_MASK):
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- info->flash_id = FLASH_MAN_SST;
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- break;
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- case (STM_MANUFACT & FLASH_ID_MASK):
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- info->flash_id = FLASH_MAN_STM;
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- break;
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- case (INTEL_MANUFACT & FLASH_ID_MASK):
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- info->flash_id = FLASH_MAN_INTEL;
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- break;
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- default:
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- info->flash_id = FLASH_UNKNOWN;
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- info->sector_count = 0;
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- info->size = 0;
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- addr[0] = FLASH_CMD_RESET; /* restore read mode */
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- return (0); /* no or unknown flash */
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- }
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-
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- value = addr[1]; /* device ID */
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-
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- switch (value) {
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- case (INTEL_ID_28F320J3A & FLASH_ID_MASK):
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- info->flash_id += FLASH_28F320J3A;
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- info->sector_count = 32;
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- info->size = 0x00400000;
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- break; /* => 32 MBit */
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-
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- case (INTEL_ID_28F640J3A & FLASH_ID_MASK):
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- info->flash_id += FLASH_28F640J3A;
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- info->sector_count = 64;
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- info->size = 0x00800000;
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- break; /* => 64 MBit */
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-
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- case (INTEL_ID_28F128J3A & FLASH_ID_MASK):
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- info->flash_id += FLASH_28F128J3A;
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- info->sector_count = 128;
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- info->size = 0x01000000;
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- break; /* => 128 MBit */
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-
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- default:
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- info->flash_id = FLASH_UNKNOWN;
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- addr[0] = FLASH_CMD_RESET; /* restore read mode */
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- return (0); /* => no or unknown flash */
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-
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- }
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-
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- if (info->sector_count > CONFIG_SYS_MAX_FLASH_SECT) {
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- printf ("** ERROR: sector count %d > max (%d) **\n",
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- info->sector_count, CONFIG_SYS_MAX_FLASH_SECT);
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- info->sector_count = CONFIG_SYS_MAX_FLASH_SECT;
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- }
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-
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- addr[0] = FLASH_CMD_RESET; /* restore read mode */
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-
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- return (info->size);
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-}
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-
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-
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-/*
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- * Erase unprotected sectors
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- */
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-
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-int flash_erase (flash_info_t *info, int s_first, int s_last)
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-{
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- int flag, prot, sect;
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- ulong start, now, last;
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-
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- if ((s_first < 0) || (s_first > s_last)) {
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- if (info->flash_id == FLASH_UNKNOWN) {
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- printf ("- missing\n");
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- } else {
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- printf ("- no sectors to erase\n");
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- }
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- return 1;
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- }
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-
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- if ((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL) {
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- printf ("Can erase only Intel flash types - aborted\n");
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- return 1;
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- }
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-
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- prot = 0;
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- for (sect=s_first; sect<=s_last; ++sect) {
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- if (info->protect[sect]) {
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- prot++;
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- }
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- }
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-
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- if (prot) {
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- printf ("- Warning: %d protected sectors will not be erased!\n",
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- prot);
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- } else {
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- printf ("\n");
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- }
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-
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- start = get_timer (0);
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- last = start;
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-
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- /* Start erase on unprotected sectors */
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- for (sect = s_first; sect<=s_last; sect++) {
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- if (info->protect[sect] == 0) { /* not protected */
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- vu_short *addr = (vu_short *)(info->start[sect]);
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- unsigned long status;
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-
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- /* Disable interrupts which might cause a timeout here */
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- flag = disable_interrupts();
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-
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-#ifdef DEBUG
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- printf("Erase sector %d at start addr 0x%08X", sect, (unsigned int)info->start[sect]);
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-#endif
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-
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- *addr = FLASH_CMD_CLEAR_STATUS;
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- *addr = FLASH_CMD_BLOCK_ERASE;
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- *addr = FLASH_CMD_ERASE_CONFIRM;
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-
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- /* re-enable interrupts if necessary */
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- if (flag)
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- enable_interrupts();
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-
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- /* wait at least 80us - let's wait 1 ms */
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- udelay (1000);
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-
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- while (((status = *addr) & FLASH_STATUS_DONE) != FLASH_STATUS_DONE) {
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- if ((now=get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
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- printf("Flash erase timeout at address %lx\n", info->start[sect]);
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- *addr = FLASH_CMD_SUSPEND_ERASE;
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- *addr = FLASH_CMD_RESET;
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- return 1;
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- }
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-
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- /* show that we're waiting */
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- if ((now - last) > 1000) { /* every second */
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- putc ('.');
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- last = now;
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- }
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- }
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- *addr = FLASH_CMD_RESET;
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- }
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- }
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- printf (" done\n");
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- return 0;
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-}
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-
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-/*
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- * Copy memory to flash, returns:
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- * 0 - OK
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- * 1 - write timeout
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- * 2 - Flash not erased
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- * 4 - Flash not identified
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- */
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-
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-int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
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-{
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- ulong cp, wp;
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- ushort data;
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- int i, rc;
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-
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- if (info->flash_id == FLASH_UNKNOWN) {
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- return 4;
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- }
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-
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- wp = (addr & ~1); /* get lower word aligned address */
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-
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- /*
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- * handle unaligned start byte
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- */
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-
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- if (addr - wp) {
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- data = 0;
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- data = (data << 8) | *src++;
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- --cnt;
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- if ((rc = write_short(info, wp, data)) != 0) {
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- return (rc);
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- }
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- wp += 2;
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- }
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-
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- /*
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- * handle word aligned part
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- */
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-
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- while (cnt >= 2) {
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- data = 0;
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- for (i=0; i<2; ++i) {
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- data = (data << 8) | *src++;
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- }
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-
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- if ((rc = write_short(info, wp, data)) != 0) {
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- return (rc);
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- }
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- wp += 2;
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- cnt -= 2;
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- }
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-
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- if (cnt == 0) {
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- return (0);
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- }
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-
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- /*
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- * handle unaligned tail bytes
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- */
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-
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- data = 0;
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- for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) {
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- data = (data << 8) | *src++;
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- --cnt;
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- }
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- for (; i<2; ++i, ++cp) {
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- data = (data << 8) | (*(uchar *)cp);
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- }
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-
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- return (write_short(info, wp, data));
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-
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-}
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-
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-/*
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- * Write 16 bit (short) to flash
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- */
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-
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-static int write_short (flash_info_t *info, ulong dest, ushort data)
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-{
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- vu_short *addr = (vu_short*)(info->start[0]);
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- ulong start;
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- int flag;
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-
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- /* Check if Flash is (sufficiently) erased */
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- if ((*((vu_short *)dest) & data) != data) {
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- return (2);
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- }
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-
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- /* Disable interrupts which might cause a timeout here */
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- flag = disable_interrupts();
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-
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- if (!(info->flash_id & FLASH_VENDMASK)) {
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- return 4;
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- }
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- *addr = FLASH_CMD_ERASE_CONFIRM;
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- *addr = FLASH_CMD_WRITE;
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-
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- *((vu_short *)dest) = data;
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-
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- /* re-enable interrupts if necessary */
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- if (flag) {
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- enable_interrupts();
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- }
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-
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- /* data polling for D7 */
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- start = get_timer (0);
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-
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- /* wait for error or finish */
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- while(!(addr[0] & FLASH_STATUS_DONE)){
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- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
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- addr[0] = FLASH_CMD_RESET;
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- return (1);
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- }
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- }
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-
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- *addr = FLASH_CMD_RESET;
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- return (0);
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-}
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-
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-/*
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- * Protects a flash sector
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- */
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-
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-int flash_real_protect(flash_info_t *info, long sector, int prot)
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-{
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- vu_short *addr = (vu_short*)(info->start[sector]);
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- ulong start;
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-
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- *addr = FLASH_CMD_CLEAR_STATUS;
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- *addr = FLASH_CMD_PROTECT;
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-
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- if(prot) {
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- *addr = FLASH_CMD_PROTECT_SET;
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- } else {
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- *addr = FLASH_CMD_PROTECT_CLEAR;
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- }
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-
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- /* wait for error or finish */
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- start = get_timer (0);
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- while(!(addr[0] & FLASH_STATUS_DONE)){
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- if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT) {
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- printf("Flash protect timeout at address %lx\n", info->start[sector]);
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- addr[0] = FLASH_CMD_RESET;
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- return (1);
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- }
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- }
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- /* Set software protect flag */
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- info->protect[sector] = prot;
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- *addr = FLASH_CMD_RESET;
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- return (0);
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-}
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Masahiro Yamada