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-rw-r--r--board/cmi/flash.c501
1 files changed, 0 insertions, 501 deletions
diff --git a/board/cmi/flash.c b/board/cmi/flash.c
deleted file mode 100644
index d9986f9..0000000
--- a/board/cmi/flash.c
+++ /dev/null
@@ -1,501 +0,0 @@
-/*
- * (C) Copyright 2003
- * Martin Winistoerfer, martinwinistoerfer@gmx.ch.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-/*
- * File: flash.c
- *
- * Discription: This Driver is for 28F320J3A, 28F640J3A and
- * 28F128J3A Intel flashs working in 16 Bit mode.
- * They are single bank flashs.
- *
- * Most of this code is taken from existing u-boot
- * source code.
- */
-
-
-#include <common.h>
-#include <mpc5xx.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 FLASH_ID_MASK 0xFFFF
-#define FLASH_BLOCK_SIZE 0x00010000
-#define FLASH_CMD_READ_ID 0x0090
-#define FLASH_CMD_RESET 0x00ff
-#define FLASH_CMD_BLOCK_ERASE 0x0020
-#define FLASH_CMD_ERASE_CONFIRM 0x00D0
-#define FLASH_CMD_CLEAR_STATUS 0x0050
-#define FLASH_CMD_SUSPEND_ERASE 0x00B0
-#define FLASH_CMD_WRITE 0x0040
-#define FLASH_CMD_PROTECT 0x0060
-#define FLASH_CMD_PROTECT_SET 0x0001
-#define FLASH_CMD_PROTECT_CLEAR 0x00D0
-#define FLASH_STATUS_DONE 0x0080
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-/*
- * Local function prototypes
- */
-static ulong flash_get_size (vu_short *addr, flash_info_t *info);
-static int write_short (flash_info_t *info, ulong dest, ushort data);
-static void flash_get_offsets (ulong base, flash_info_t *info);
-
-/*
- * Initialize flash
- */
-
-unsigned long flash_init (void)
-{
- 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 */
-#if 1
- debug ("\n## Get flash bank 1 size @ 0x%08x\n",FLASH_BASE0_PRELIM);
-#endif
- size_b0 = flash_get_size((vu_short *)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);
- }
-
- flash_get_offsets (FLASH_BASE0_PRELIM, &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;
-}
-
-/*
- * Compute start adress of each sector (block)
- */
-
-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 + i * FLASH_BLOCK_SIZE;
- }
- return;
-
- default:
- printf ("Don't know sector offsets for flash type 0x%lx\n",
- info->flash_id);
- return;
- }
-}
-
-/*
- * Print flash information
- */
-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) 16-Bit\n");
- break;
- case FLASH_28F640J3A: printf ("28F640J3A (64Mbit) 16-Bit\n");
- break;
- case FLASH_28F128J3A: printf ("28F128J3A (128Mbit) 16-Bit\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;
-}
-
-/*
- * Get size of flash in bytes.
- * The following code cannot be run from FLASH!
- */
-
-static ulong flash_get_size (vu_short *addr, flash_info_t *info)
-{
- vu_short value;
-
- /* Read Manufacturer ID */
- addr[0] = FLASH_CMD_READ_ID;
- value = addr[0];
-
- switch (value) {
- case (AMD_MANUFACT & FLASH_ID_MASK):
- info->flash_id = FLASH_MAN_AMD;
- break;
- case (FUJ_MANUFACT & FLASH_ID_MASK):
- info->flash_id = FLASH_MAN_FUJ;
- break;
- case (SST_MANUFACT & FLASH_ID_MASK):
- info->flash_id = FLASH_MAN_SST;
- break;
- case (STM_MANUFACT & FLASH_ID_MASK):
- info->flash_id = FLASH_MAN_STM;
- break;
- case (INTEL_MANUFACT & FLASH_ID_MASK):
- info->flash_id = FLASH_MAN_INTEL;
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- addr[0] = FLASH_CMD_RESET; /* restore read mode */
- return (0); /* no or unknown flash */
- }
-
- value = addr[1]; /* device ID */
-
- switch (value) {
- case (INTEL_ID_28F320J3A & FLASH_ID_MASK):
- info->flash_id += FLASH_28F320J3A;
- info->sector_count = 32;
- info->size = 0x00400000;
- break; /* => 32 MBit */
-
- case (INTEL_ID_28F640J3A & FLASH_ID_MASK):
- info->flash_id += FLASH_28F640J3A;
- info->sector_count = 64;
- info->size = 0x00800000;
- break; /* => 64 MBit */
-
- case (INTEL_ID_28F128J3A & FLASH_ID_MASK):
- info->flash_id += FLASH_28F128J3A;
- info->sector_count = 128;
- info->size = 0x01000000;
- break; /* => 128 MBit */
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- addr[0] = FLASH_CMD_RESET; /* 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;
- }
-
- addr[0] = FLASH_CMD_RESET; /* restore read mode */
-
- return (info->size);
-}
-
-
-/*
- * Erase unprotected sectors
- */
-
-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_short *addr = (vu_short *)(info->start[sect]);
- unsigned long status;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
-#ifdef DEBUG
- printf("Erase sector %d at start addr 0x%08X", sect, (unsigned int)info->start[sect]);
-#endif
-
- *addr = FLASH_CMD_CLEAR_STATUS;
- *addr = FLASH_CMD_BLOCK_ERASE;
- *addr = FLASH_CMD_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) & FLASH_STATUS_DONE) != FLASH_STATUS_DONE) {
- if ((now=get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf("Flash erase timeout at address %lx\n", info->start[sect]);
- *addr = FLASH_CMD_SUSPEND_ERASE;
- *addr = FLASH_CMD_RESET;
- return 1;
- }
-
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- putc ('.');
- last = now;
- }
- }
- *addr = FLASH_CMD_RESET;
- }
- }
- printf (" done\n");
- return 0;
-}
-
-/*
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- * 4 - Flash not identified
- */
-
-int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
-{
- ulong cp, wp;
- ushort data;
- int i, rc;
-
- if (info->flash_id == FLASH_UNKNOWN) {
- return 4;
- }
-
- wp = (addr & ~1); /* get lower word aligned address */
-
- /*
- * handle unaligned start byte
- */
-
- if (addr - wp) {
- data = 0;
- data = (data << 8) | *src++;
- --cnt;
- if ((rc = write_short(info, wp, data)) != 0) {
- return (rc);
- }
- wp += 2;
- }
-
- /*
- * handle word aligned part
- */
-
- while (cnt >= 2) {
- data = 0;
- for (i=0; i<2; ++i) {
- data = (data << 8) | *src++;
- }
-
- if ((rc = write_short(info, wp, data)) != 0) {
- return (rc);
- }
- wp += 2;
- cnt -= 2;
- }
-
- if (cnt == 0) {
- return (0);
- }
-
- /*
- * handle unaligned tail bytes
- */
-
- data = 0;
- for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) {
- data = (data << 8) | *src++;
- --cnt;
- }
- for (; i<2; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- return (write_short(info, wp, data));
-
-}
-
-/*
- * Write 16 bit (short) to flash
- */
-
-static int write_short (flash_info_t *info, ulong dest, ushort data)
-{
- vu_short *addr = (vu_short*)(info->start[0]);
- ulong start;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*((vu_short *)dest) & data) != data) {
- return (2);
- }
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- if (!(info->flash_id & FLASH_VENDMASK)) {
- return 4;
- }
- *addr = FLASH_CMD_ERASE_CONFIRM;
- *addr = FLASH_CMD_WRITE;
-
- *((vu_short *)dest) = data;
-
- /* re-enable interrupts if necessary */
- if (flag) {
- enable_interrupts();
- }
-
- /* data polling for D7 */
- start = get_timer (0);
-
- /* wait for error or finish */
- while(!(addr[0] & FLASH_STATUS_DONE)){
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- addr[0] = FLASH_CMD_RESET;
- return (1);
- }
- }
-
- *addr = FLASH_CMD_RESET;
- return (0);
-}
-
-/*
- * Protects a flash sector
- */
-
-int flash_real_protect(flash_info_t *info, long sector, int prot)
-{
- vu_short *addr = (vu_short*)(info->start[sector]);
- ulong start;
-
- *addr = FLASH_CMD_CLEAR_STATUS;
- *addr = FLASH_CMD_PROTECT;
-
- if(prot) {
- *addr = FLASH_CMD_PROTECT_SET;
- } else {
- *addr = FLASH_CMD_PROTECT_CLEAR;
- }
-
- /* wait for error or finish */
- start = get_timer (0);
- while(!(addr[0] & FLASH_STATUS_DONE)){
- if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf("Flash protect timeout at address %lx\n", info->start[sector]);
- addr[0] = FLASH_CMD_RESET;
- return (1);
- }
- }
- /* Set software protect flag */
- info->protect[sector] = prot;
- *addr = FLASH_CMD_RESET;
- return (0);
-}
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