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authorGraeme Russ <graeme.russ@gmail.com>2010-08-22 16:26:00 +1000
committerGraeme Russ <graeme.russ@gmail.com>2010-09-13 07:20:02 +1000
commit215e1cb33ca676c62d96dfd3aa1053b7a92b7997 (patch)
treeb2f90cbf94013c7354cef6aa7378e8231fa2c912 /board/sc520_cdp/flash_old.c
parent797960fda18688fc309bb12c98912fa6eb508733 (diff)
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x86: Remove Unmaintained Boards
The SC520 CDP boards originally implemented by Daniel Engström are now very broken. Attempts to contact Daniel via the email address on the copyright notice have failed. Remove these boards from mainline
Diffstat (limited to 'board/sc520_cdp/flash_old.c')
-rw-r--r--board/sc520_cdp/flash_old.c458
1 files changed, 0 insertions, 458 deletions
diff --git a/board/sc520_cdp/flash_old.c b/board/sc520_cdp/flash_old.c
deleted file mode 100644
index 9491ca2..0000000
--- a/board/sc520_cdp/flash_old.c
+++ /dev/null
@@ -1,458 +0,0 @@
-/*
- * (C) Copyright 2002
- * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Alex Zuepke <azu@sysgo.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 <asm/io.h>
-
-ulong myflush(void);
-
-
-#define SC520_MAX_FLASH_BANKS 3
-#define SC520_FLASH_BANK0_BASE 0x38000000 /* BOOTCS */
-#define SC520_FLASH_BANK1_BASE 0x30000000 /* ROMCS0 */
-#define SC520_FLASH_BANK2_BASE 0x28000000 /* ROMCS1 */
-#define SC520_FLASH_BANKSIZE 0x8000000
-
-#define AMD29LV016_SIZE 0x200000
-#define AMD29LV016_SECTORS 32
-
-flash_info_t flash_info[SC520_MAX_FLASH_BANKS];
-
-#define CMD_READ_ARRAY 0x00F000F0
-#define CMD_UNLOCK1 0x00AA00AA
-#define CMD_UNLOCK2 0x00550055
-#define CMD_ERASE_SETUP 0x00800080
-#define CMD_ERASE_CONFIRM 0x00300030
-#define CMD_PROGRAM 0x00A000A0
-#define CMD_UNLOCK_BYPASS 0x00200020
-
-
-#define BIT_ERASE_DONE 0x00800080
-#define BIT_RDY_MASK 0x00800080
-#define BIT_PROGRAM_ERROR 0x00200020
-#define BIT_TIMEOUT 0x80000000 /* our flag */
-
-#define READY 1
-#define ERR 2
-#define TMO 4
-
-/*-----------------------------------------------------------------------
- */
-
-ulong flash_init(void)
-{
- int i, j;
- ulong size = 0;
-
- for (i = 0; i < SC520_MAX_FLASH_BANKS; i++) {
- ulong flashbase = 0;
- int sectsize = 0;
- if (i==0 || i==2) {
- /* FixMe: this assumes that bank 0 and 2
- * are mapped to the two 8Mb banks */
- flash_info[i].flash_id =
- (AMD_MANUFACT & FLASH_VENDMASK) |
- (AMD_ID_LV016B & FLASH_TYPEMASK);
-
- flash_info[i].size = AMD29LV016_SIZE*4;
- flash_info[i].sector_count = AMD29LV016_SECTORS;
- sectsize = (AMD29LV016_SIZE*4)/AMD29LV016_SECTORS;
- } else {
- /* FixMe: this assumes that bank1 is unmapped
- * (or mapped to the same flash bank as BOOTCS) */
- flash_info[i].flash_id = 0;
- flash_info[i].size = 0;
- flash_info[i].sector_count = 0;
- sectsize=0;
- }
- memset(flash_info[i].protect, 0, CONFIG_SYS_MAX_FLASH_SECT);
- switch (i) {
- case 0:
- flashbase = SC520_FLASH_BANK0_BASE;
- break;
- case 1:
- flashbase = SC520_FLASH_BANK1_BASE;
- break;
- case 2:
- flashbase = SC520_FLASH_BANK0_BASE;
- break;
- default:
- panic("configured too many flash banks!\n");
- }
-
- for (j = 0; j < flash_info[i].sector_count; j++) {
- flash_info[i].start[j] = sectsize;
- flash_info[i].start[j] = flashbase + j * sectsize;
- }
- size += flash_info[i].size;
- }
-
- /*
- * Protect monitor and environment sectors
- */
- flash_protect(FLAG_PROTECT_SET,
- i386boot_start-SC520_FLASH_BANK0_BASE,
- i386boot_end-SC520_FLASH_BANK0_BASE,
- &flash_info[0]);
-
-#ifdef CONFIG_ENV_ADDR
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1,
- &flash_info[0]);
-#endif
- return size;
-}
-
-/*-----------------------------------------------------------------------
- */
-void flash_print_info(flash_info_t *info)
-{
- int i;
-
- switch (info->flash_id & FLASH_VENDMASK) {
- case (AMD_MANUFACT & FLASH_VENDMASK):
- printf("AMD: ");
- break;
- default:
- printf("Unknown Vendor ");
- break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case (AMD_ID_LV016B & FLASH_TYPEMASK):
- printf("4x Amd29LV016B (16Mbit)\n");
- break;
- default:
- printf("Unknown Chip Type\n");
- goto done;
- break;
- }
-
- printf(" Size: %ld MB in %d Sectors\n",
- info->size >> 20, 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");
-
- done:
-}
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase(flash_info_t *info, int s_first, int s_last)
-{
- ulong result;
- int iflag, prot, sect;
- int rc = ERR_OK;
- int chip1, chip2;
-
- /* first look for protection bits */
-
- if (info->flash_id == FLASH_UNKNOWN) {
- return ERR_UNKNOWN_FLASH_TYPE;
- }
-
- if ((s_first < 0) || (s_first > s_last)) {
- return ERR_INVAL;
- }
-
- if ((info->flash_id & FLASH_VENDMASK) !=
- (AMD_MANUFACT & FLASH_VENDMASK)) {
- return ERR_UNKNOWN_FLASH_VENDOR;
- }
-
- prot = 0;
- for (sect=s_first; sect<=s_last; ++sect) {
- if (info->protect[sect]) {
- prot++;
- }
- }
- if (prot) {
- return ERR_PROTECTED;
- }
-
- /*
- * 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.
- */
- iflag = disable_interrupts();
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last && !ctrlc(); sect++) {
- printf("Erasing sector %2d ... ", sect);
-
- /* arm simple, non interrupt dependent timer */
- reset_timer();
-
- if (info->protect[sect] == 0) {
- /* not protected */
- ulong addr = info->start[sect];
-
- writel(CMD_UNLOCK1, addr + 1);
- writel(CMD_UNLOCK2, addr + 2);
- writel(CMD_ERASE_SETUP, addr + 1);
-
- writel(CMD_UNLOCK1, addr + 1);
- writel(CMD_UNLOCK2, addr + 2);
- writel(CMD_ERASE_CONFIRM, addr);
-
-
- /* wait until flash is ready */
- chip1 = chip2 = 0;
-
- do {
- result = readl(addr);
-
- /* check timeout */
- if (get_timer(0) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- writel(CMD_READ_ARRAY, addr + 1);
- chip1 = TMO;
- break;
- }
-
- if (!chip1 && (result & 0xFFFF) & BIT_ERASE_DONE) {
- chip1 = READY;
- }
-
- if (!chip1 && (result & 0xFFFF) & BIT_PROGRAM_ERROR) {
- chip1 = ERR;
- }
-
- if (!chip2 && (result >> 16) & BIT_ERASE_DONE) {
- chip2 = READY;
- }
-
- if (!chip2 && (result >> 16) & BIT_PROGRAM_ERROR) {
- chip2 = ERR;
- }
-
- } while (!chip1 || !chip2);
-
- writel(CMD_READ_ARRAY, addr + 1);
-
- if (chip1 == ERR || chip2 == ERR) {
- rc = ERR_PROG_ERROR;
- goto outahere;
- }
-
- if (chip1 == TMO) {
- rc = ERR_TIMOUT;
- goto outahere;
- }
-
- printf("ok.\n");
- } else { /* it was protected */
-
- printf("protected!\n");
- }
- }
-
- if (ctrlc()) {
- printf("User Interrupt!\n");
- }
-
-outahere:
- /* allow flash to settle - wait 10 ms */
- udelay(10000);
-
- if (iflag) {
- enable_interrupts();
- }
-
- return rc;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash
- */
-
-volatile static int write_word(flash_info_t *info, ulong dest, ulong data)
-{
- ulong addr = dest;
- ulong result;
- int rc = ERR_OK;
- int iflag;
- int chip1, chip2;
-
- /*
- * Check if Flash is (sufficiently) erased
- */
- result = readl(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.
- */
- iflag = disable_interrupts();
-
- writel(CMD_UNLOCK1, addr + 1);
- writel(CMD_UNLOCK2, addr + 2);
- writel(CMD_UNLOCK_BYPASS, addr + 1);
- writel(addr, CMD_PROGRAM);
- writel(addr, data);
-
- /* arm simple, non interrupt dependent timer */
- reset_timer();
-
- /* wait until flash is ready */
- chip1 = chip2 = 0;
- do {
- result = readl(addr);
-
- /* check timeout */
- if (get_timer(0) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- chip1 = ERR | TMO;
- break;
- }
-
- if (!chip1 && ((result & 0x80) == (data & 0x80))) {
- chip1 = READY;
- }
-
- if (!chip1 && ((result & 0xFFFF) & BIT_PROGRAM_ERROR)) {
- result = readl(addr);
-
- if ((result & 0x80) == (data & 0x80)) {
- chip1 = READY;
- } else {
- chip1 = ERR;
- }
- }
-
- if (!chip2 && ((result & (0x80 << 16)) == (data & (0x80 << 16)))) {
- chip2 = READY;
- }
-
- if (!chip2 && ((result >> 16) & BIT_PROGRAM_ERROR)) {
- result = readl(addr);
-
- if ((result & (0x80 << 16)) == (data & (0x80 << 16))) {
- chip2 = READY;
- } else {
- chip2 = ERR;
- }
- }
-
- } while (!chip1 || !chip2);
-
- writel(CMD_READ_ARRAY, addr);
-
- if (chip1 == ERR || chip2 == ERR || readl(addr) != data) {
- rc = ERR_PROG_ERROR;
- }
-
- if (iflag) {
- enable_interrupts();
- }
-
- return rc;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash.
- */
-
-int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt)
-{
- ulong cp, wp, data;
- int l;
- int i, rc;
-
- wp = (addr & ~3); /* get lower word 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 << 24);
- }
- for (; i<4 && cnt>0; ++i) {
- data = (data >> 8) | (*src++ << 24);
- --cnt;
- ++cp;
- }
- for (; cnt==0 && i<4; ++i, ++cp) {
- data = (data >> 8) | (*(uchar *)cp << 24);
- }
-
- if ((rc = write_word(info, wp, data)) != 0) {
- return rc;
- }
- wp += 4;
- }
-
- /*
- * handle word aligned part
- */
- while (cnt >= 4) {
- data = *((vu_long*)src);
- if ((rc = write_word(info, wp, data)) != 0) {
- return rc;
- }
- src += 4;
- wp += 4;
- cnt -= 4;
- }
-
- if (cnt == 0) {
- return ERR_OK;
- }
-
- /*
- * handle unaligned tail bytes
- */
- data = 0;
- for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
- data = (data >> 8) | (*src++ << 24);
- --cnt;
- }
- for (; i<4; ++i, ++cp) {
- data = (data >> 8) | (*(uchar *)cp << 24);
- }
-
- return write_word(info, wp, data);
-}