summaryrefslogtreecommitdiff
path: root/board/lart/flash.c
diff options
context:
space:
mode:
authorWolfgang Denk <wd@denx.de>2011-09-05 12:37:31 (GMT)
committerWolfgang Denk <wd@denx.de>2011-09-07 19:46:40 (GMT)
commit3d575739863a723ac3e74d748236d09e8abc0bec (patch)
tree466d9d562bd4f8d3a172722550714e8f2af59ac3 /board/lart/flash.c
parentc1f8750f9f15a81e40566f2be6fe359649e91a00 (diff)
downloadu-boot-3d575739863a723ac3e74d748236d09e8abc0bec.tar.xz
ARM: remove broken "lart" board.
Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Cc: Alex Züpke <azu@sysgo.de>
Diffstat (limited to 'board/lart/flash.c')
-rw-r--r--board/lart/flash.c476
1 files changed, 0 insertions, 476 deletions
diff --git a/board/lart/flash.c b/board/lart/flash.c
deleted file mode 100644
index 408c884..0000000
--- a/board/lart/flash.c
+++ /dev/null
@@ -1,476 +0,0 @@
-/*
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger@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>
-
-ulong myflush(void);
-
-
-#define FLASH_BANK_SIZE 0x800000
-#define MAIN_SECT_SIZE 0x20000
-#define PARAM_SECT_SIZE 0x4000
-
-/* puzzle magic for lart
- * data_*_flash are def'd in flashasm.S
- */
-
-extern u32 data_from_flash(u32);
-extern u32 data_to_flash(u32);
-
-#define PUZZLE_FROM_FLASH(x) data_from_flash((x))
-#define PUZZLE_TO_FLASH(x) data_to_flash((x))
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-
-#define CMD_READ_ARRAY 0x00FF00FF
-#define CMD_IDENTIFY 0x00900090
-#define CMD_ERASE_SETUP 0x00200020
-#define CMD_ERASE_CONFIRM 0x00D000D0
-#define CMD_PROGRAM 0x00400040
-#define CMD_RESUME 0x00D000D0
-#define CMD_SUSPEND 0x00B000B0
-#define CMD_STATUS_READ 0x00700070
-#define CMD_STATUS_RESET 0x00500050
-
-#define BIT_BUSY 0x00800080
-#define BIT_ERASE_SUSPEND 0x00400040
-#define BIT_ERASE_ERROR 0x00200020
-#define BIT_PROGRAM_ERROR 0x00100010
-#define BIT_VPP_RANGE_ERROR 0x00080008
-#define BIT_PROGRAM_SUSPEND 0x00040004
-#define BIT_PROTECT_ERROR 0x00020002
-#define BIT_UNDEFINED 0x00010001
-
-#define BIT_SEQUENCE_ERROR 0x00300030
-#define BIT_TIMEOUT 0x80000000
-
-/*-----------------------------------------------------------------------
- */
-
-ulong flash_init(void)
-{
- int i, j;
- ulong size = 0;
-
- for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++)
- {
- ulong flashbase = 0;
- flash_info[i].flash_id =
- (INTEL_MANUFACT & FLASH_VENDMASK) |
- (INTEL_ID_28F160F3B & 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);
- if (i == 0)
- flashbase = PHYS_FLASH_1;
- else
- panic("configured too many flash banks!\n");
- for (j = 0; j < flash_info[i].sector_count; j++)
- {
- if (j <= 7)
- {
- flash_info[i].start[j] = flashbase + j * PARAM_SECT_SIZE;
- }
- else
- {
- flash_info[i].start[j] = flashbase + (j - 7)*MAIN_SECT_SIZE;
- }
- }
- size += flash_info[i].size;
- }
-
- /* Protect monitor and environment sectors
- */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_FLASH_BASE,
- CONFIG_SYS_FLASH_BASE + monitor_flash_len - 1,
- &flash_info[0]);
-
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1,
- &flash_info[0]);
-
- return size;
-}
-
-/*-----------------------------------------------------------------------
- */
-void flash_print_info (flash_info_t *info)
-{
- int i;
-
- switch (info->flash_id & FLASH_VENDMASK)
- {
- case (INTEL_MANUFACT & FLASH_VENDMASK):
- printf("Intel: ");
- break;
- default:
- printf("Unknown Vendor ");
- break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK)
- {
- case (INTEL_ID_28F160F3B & FLASH_TYPEMASK):
- printf("2x 28F160F3B (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_error (ulong code)
-{
- /* Check bit patterns */
- /* SR.7=0 is busy, SR.7=1 is ready */
- /* all other flags indicate error on 1 */
- /* SR.0 is undefined */
- /* Timeout is our faked flag */
-
- /* sequence is described in Intel 290644-005 document */
-
- /* check Timeout */
- if (code & BIT_TIMEOUT)
- {
- printf ("Timeout\n");
- return ERR_TIMOUT;
- }
-
- /* check Busy, SR.7 */
- if (~code & BIT_BUSY)
- {
- printf ("Busy\n");
- return ERR_PROG_ERROR;
- }
-
- /* check Vpp low, SR.3 */
- if (code & BIT_VPP_RANGE_ERROR)
- {
- printf ("Vpp range error\n");
- return ERR_PROG_ERROR;
- }
-
- /* check Device Protect Error, SR.1 */
- if (code & BIT_PROTECT_ERROR)
- {
- printf ("Device protect error\n");
- return ERR_PROG_ERROR;
- }
-
- /* check Command Seq Error, SR.4 & SR.5 */
- if (code & BIT_SEQUENCE_ERROR)
- {
- printf ("Command seqence error\n");
- return ERR_PROG_ERROR;
- }
-
- /* check Block Erase Error, SR.5 */
- if (code & BIT_ERASE_ERROR)
- {
- printf ("Block erase error\n");
- return ERR_PROG_ERROR;
- }
-
- /* check Program Error, SR.4 */
- if (code & BIT_PROGRAM_ERROR)
- {
- printf ("Program error\n");
- return ERR_PROG_ERROR;
- }
-
- /* check Block Erase Suspended, SR.6 */
- if (code & BIT_ERASE_SUSPEND)
- {
- printf ("Block erase suspended\n");
- return ERR_PROG_ERROR;
- }
-
- /* check Program Suspended, SR.2 */
- if (code & BIT_PROGRAM_SUSPEND)
- {
- printf ("Program suspended\n");
- return ERR_PROG_ERROR;
- }
-
- /* OK, no error */
- return ERR_OK;
-}
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase (flash_info_t *info, int s_first, int s_last)
-{
- ulong result;
- int iflag, cflag, prot, sect;
- int rc = ERR_OK;
- ulong start;
-
- /* 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) !=
- (INTEL_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.
- */
- cflag = icache_status();
- icache_disable();
- 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 */
- start = get_timer(0);
-
- if (info->protect[sect] == 0)
- { /* not protected */
- vu_long *addr = (vu_long *)(info->start[sect]);
-
- *addr = PUZZLE_TO_FLASH(CMD_STATUS_RESET);
- *addr = PUZZLE_TO_FLASH(CMD_ERASE_SETUP);
- *addr = PUZZLE_TO_FLASH(CMD_ERASE_CONFIRM);
-
- /* wait until flash is ready */
- do
- {
- /* check timeout */
- if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT)
- {
- *addr = PUZZLE_TO_FLASH(CMD_SUSPEND);
- result = BIT_TIMEOUT;
- break;
- }
-
- result = PUZZLE_FROM_FLASH(*addr);
- } while (~result & BIT_BUSY);
-
- *addr = PUZZLE_TO_FLASH(CMD_READ_ARRAY);
-
- if ((rc = flash_error(result)) != ERR_OK)
- 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_masked(10000);
-
- if (iflag)
- enable_interrupts();
-
- if (cflag)
- icache_enable();
-
- return rc;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash
- */
-
-static int write_word (flash_info_t *info, ulong dest, ulong data)
-{
- vu_long *addr = (vu_long *)dest;
- ulong result;
- int rc = ERR_OK;
- int cflag, iflag;
- ulong start;
-
- /* Check if Flash is (sufficiently) erased
- */
- result = PUZZLE_FROM_FLASH(*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();
-
- *addr = PUZZLE_TO_FLASH(CMD_STATUS_RESET);
- *addr = PUZZLE_TO_FLASH(CMD_PROGRAM);
- *addr = data;
-
- /* arm simple, non interrupt dependent timer */
- start = get_timer(0);
-
- /* wait until flash is ready */
- do
- {
- /* check timeout */
- if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT)
- {
- *addr = PUZZLE_TO_FLASH(CMD_SUSPEND);
- result = BIT_TIMEOUT;
- break;
- }
-
- result = PUZZLE_FROM_FLASH(*addr);
- } while (~result & BIT_BUSY);
-
- *addr = PUZZLE_TO_FLASH(CMD_READ_ARRAY);
-
- rc = flash_error(result);
-
- if (iflag)
- enable_interrupts();
-
- if (cflag)
- icache_enable();
-
- 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);
-}