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Diffstat (limited to 'board/BuS/eb_cpu5282/flash.c')
-rw-r--r--board/BuS/eb_cpu5282/flash.c415
1 files changed, 0 insertions, 415 deletions
diff --git a/board/BuS/eb_cpu5282/flash.c b/board/BuS/eb_cpu5282/flash.c
deleted file mode 100644
index 8b7f9578f..000000000
--- a/board/BuS/eb_cpu5282/flash.c
+++ /dev/null
@@ -1,415 +0,0 @@
-/*
- * (C) Copyright 2005
- * BuS Elektronik GmbH & Co.KG <esw@bus-elektonik.de>
- *
- * Based On
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include "cfm_flash.h"
-
-#define PHYS_FLASH_1 CONFIG_SYS_FLASH_BASE
-#define FLASH_BANK_SIZE 0x200000
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-void flash_print_info (flash_info_t * info)
-{
- int i;
-
- switch (info->flash_id & FLASH_VENDMASK) {
- case (AMD_MANUFACT & FLASH_VENDMASK):
- printf ("AMD: ");
- switch (info->flash_id & FLASH_TYPEMASK) {
- case (AMD_ID_LV160B & FLASH_TYPEMASK):
- printf ("AM29LV160B (16Bit)\n");
- break;
- default:
- printf ("Unknown Chip Type\n");
- break;
- }
- break;
- case FREESCALE_MANUFACT & FLASH_VENDMASK:
- cfm_flash_print_info (info);
- break;
- default:
- printf ("Unknown Vendor ");
- break;
- }
-
- puts (" Size: ");
- if ((info->size >> 20) > 0)
- {
- printf ("%ld MiB",info->size >> 20);
- }
- else
- {
- printf ("%ld KiB",info->size >> 10);
- }
- printf (" in %d Sectors\n", info->sector_count);
-
- printf (" Sector Start Addresses:");
- for (i = 0; i < info->sector_count; i++) {
- if ((i % 4) == 0) {
- printf ("\n ");
- }
- printf ("%02d: %08lX%s ", i,info->start[i],
- info->protect[i] ? " P" : " ");
- }
- printf ("\n\n");
-}
-
-unsigned long flash_init (void)
-{
- int i, j;
- ulong size = 0;
-
- for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
- ulong flashbase = 0;
-
- switch (i)
- {
- case 1:
- flash_info[i].flash_id =
- (AMD_MANUFACT & FLASH_VENDMASK) |
- (AMD_ID_LV160B & FLASH_TYPEMASK);
- flash_info[i].size = FLASH_BANK_SIZE;
- flash_info[i].sector_count = CONFIG_SYS_MAX_FLASH_SECT;
- memset (flash_info[i].protect, 0, CONFIG_SYS_MAX_FLASH_SECT);
- flashbase = PHYS_FLASH_1;
- for (j = 0; j < flash_info[i].sector_count; j++) {
- if (j == 0) {
- /* 1st is 16 KiB */
- flash_info[i].start[j] = flashbase;
- }
- if ((j >= 1) && (j <= 2)) {
- /* 2nd and 3rd are 8 KiB */
- flash_info[i].start[j] =
- flashbase + 0x4000 + 0x2000 * (j - 1);
- }
- if (j == 3) {
- /* 4th is 32 KiB */
- flash_info[i].start[j] = flashbase + 0x8000;
- }
- if ((j >= 4) && (j <= 34)) {
- /* rest is 256 KiB */
- flash_info[i].start[j] =
- flashbase + 0x10000 + 0x10000 * (j - 4);
- }
- }
- break;
- case 0:
- cfm_flash_init (&flash_info[i]);
- break;
- default:
- panic ("configured to many flash banks!\n");
- }
-
- size += flash_info[i].size;
- }
-
- flash_protect (FLAG_PROTECT_SET,
- CONFIG_SYS_FLASH_BASE,
- CONFIG_SYS_FLASH_BASE + 0xffff, &flash_info[0]);
-
- return size;
-}
-
-#define CMD_READ_ARRAY 0x00F0
-#define CMD_UNLOCK1 0x00AA
-#define CMD_UNLOCK2 0x0055
-#define CMD_ERASE_SETUP 0x0080
-#define CMD_ERASE_CONFIRM 0x0030
-#define CMD_PROGRAM 0x00A0
-#define CMD_UNLOCK_BYPASS 0x0020
-
-#define MEM_FLASH_ADDR1 (*(volatile u16 *)(info->start[0] + (0x00000555<<1)))
-#define MEM_FLASH_ADDR2 (*(volatile u16 *)(info->start[0] + (0x000002AA<<1)))
-
-
-#define BIT_ERASE_DONE 0x0080
-#define BIT_RDY_MASK 0x0080
-#define BIT_PROGRAM_ERROR 0x0020
-#define BIT_TIMEOUT 0x80000000 /* our flag */
-
-#define ERR_READY -1
-
-int amd_flash_erase_sector(flash_info_t * info, int sector)
-{
- int state;
- ulong result;
- ulong start;
-
- volatile u16 *addr =
- (volatile u16 *) (info->start[sector]);
-
- MEM_FLASH_ADDR1 = CMD_UNLOCK1;
- MEM_FLASH_ADDR2 = CMD_UNLOCK2;
- MEM_FLASH_ADDR1 = CMD_ERASE_SETUP;
-
- MEM_FLASH_ADDR1 = CMD_UNLOCK1;
- MEM_FLASH_ADDR2 = CMD_UNLOCK2;
- *addr = CMD_ERASE_CONFIRM;
-
- /* wait until flash is ready */
- state = 0;
- start = get_timer(0);
-
- do {
- result = *addr;
-
- /* check timeout */
- if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
- state = ERR_TIMOUT;
- }
-
- if (!state && (result & 0xFFFF) & BIT_ERASE_DONE)
- state = ERR_READY;
- }
- while (!state);
- if (state == ERR_READY)
- state = ERR_OK;
-
- MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
-
- return state;
-}
-
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
- int iflag, cflag;
- int sector;
- int rc;
-
- rc = ERR_OK;
-
- if (info->flash_id == FLASH_UNKNOWN)
- {
- rc = ERR_UNKNOWN_FLASH_TYPE;
- } /* (info->flash_id == FLASH_UNKNOWN) */
-
- if ((s_first < 0) || (s_first > s_last) || s_last >= info->sector_count)
- {
- rc = ERR_INVAL;
- }
-
- cflag = icache_status ();
- icache_disable ();
- iflag = disable_interrupts ();
-
- for (sector = s_first; (sector <= s_last) && (rc == ERR_OK); sector++) {
-
- if (info->protect[sector])
- {
- putc('P'); /* protected sector will not erase */
- }
- else
- {
- /* erase on unprotected sector */
- puts("E\b");
- switch (info->flash_id & FLASH_VENDMASK)
- {
- case (AMD_MANUFACT & FLASH_VENDMASK):
- rc = amd_flash_erase_sector(info,sector);
- break;
- case (FREESCALE_MANUFACT & FLASH_VENDMASK):
- rc = cfm_flash_erase_sector(info,sector);
- break;
- default:
- return ERR_UNKNOWN_FLASH_VENDOR;
- }
- putc('.');
- }
- }
- if (rc!=ERR_OK)
- {
- printf ("\n ");
- flash_perror (rc);
- }
- else
- {
- printf (" done\n");
- }
-
- udelay (10000); /* allow flash to settle - wait 10 ms */
-
- if (iflag)
- enable_interrupts ();
-
- if (cflag)
- icache_enable ();
-
- return rc;
-}
-
-volatile static int amd_write_word (flash_info_t * info, ulong dest, u16 data)
-{
- volatile u16 *addr;
- ulong result;
- int cflag, iflag;
- int state;
- ulong start;
-
- /*
- * Check if Flash is (sufficiently) erased
- */
- addr = (volatile u16 *) dest;
-
- result = *addr;
- if ((result & data) != data)
- return ERR_NOT_ERASED;
-
- /*
- * Disable interrupts which might cause a timeout
- * here. Remember that our exception vectors are
- * at address 0 in the flash, and we don't want a
- * (ticker) exception to happen while the flash
- * chip is in programming mode.
- */
-
- cflag = icache_status ();
- icache_disable ();
- iflag = disable_interrupts ();
-
- MEM_FLASH_ADDR1 = CMD_UNLOCK1;
- MEM_FLASH_ADDR2 = CMD_UNLOCK2;
- MEM_FLASH_ADDR1 = CMD_PROGRAM;
- *addr = data;
-
- /* arm simple, non interrupt dependent timer */
- start = get_timer(0);
-
- /* wait until flash is ready */
- state = 0;
- do {
- result = *addr;
-
- /* check timeout */
- if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- state = ERR_TIMOUT;
- }
- if (!state && ((result & BIT_RDY_MASK) == (data & BIT_RDY_MASK)))
- state = ERR_READY;
-
- } while (!state);
-
- *addr = CMD_READ_ARRAY;
-
- if (state == ERR_READY)
- state = ERR_OK;
- if ((*addr != data) && (state != ERR_TIMOUT))
- state = ERR_PROG_ERROR;
-
- if (iflag)
- enable_interrupts ();
-
- if (cflag)
- icache_enable ();
-
- return state;
-}
-
-int amd_flash_write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
- int rc;
- ulong dest;
- u16 data;
-
- rc = ERR_OK;
- if (addr & 1)
- {
- debug ("Byte alignment not supported\n");
- rc = ERR_ALIGN;
- }
- if (cnt & 1)
- {
- debug ("Byte transfer not supported\n");
- rc = ERR_ALIGN;
- }
-
- dest = addr;
- while ((cnt>=2) && (rc == ERR_OK))
- {
- data = *((volatile u16 *) src);
- rc=amd_write_word (info,dest,data);
- src +=2;
- dest +=2;
- cnt -=2;
- }
- return rc;
-}
-
-int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
- int rc;
-
- switch (info->flash_id & FLASH_VENDMASK)
- {
- case (AMD_MANUFACT & FLASH_VENDMASK):
- rc = amd_flash_write_buff(info,src,addr,cnt);
- break;
- case (FREESCALE_MANUFACT & FLASH_VENDMASK):
- rc = cfm_flash_write_buff(info,src,addr,cnt);
- break;
- default:
- rc = ERR_UNKNOWN_FLASH_VENDOR;
- }
- return rc;
-
-}
-int amd_flash_protect(flash_info_t * info,long sector,int prot)
-{
- int rc;
- rc= ERR_OK;
- if (prot)
- {
- info->protect[sector]=1;
- }
- else
- {
- info->protect[sector]=0;
- }
- return rc;
-}
-
-#ifdef CONFIG_SYS_FLASH_PROTECTION
-
-int flash_real_protect(flash_info_t * info,long sector,int prot)
-{
- int rc;
-
- switch (info->flash_id & FLASH_VENDMASK)
- {
- case (AMD_MANUFACT & FLASH_VENDMASK):
- rc = amd_flash_protect(info,sector,prot);
- break;
- case (FREESCALE_MANUFACT & FLASH_VENDMASK):
- rc = cfm_flash_protect(info,sector,prot);
- break;
- default:
- rc = ERR_UNKNOWN_FLASH_VENDOR;
- }
- return rc;
-}
-
-#endif
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