summaryrefslogtreecommitdiff
path: root/board/siemens/SMN42/flash.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/siemens/SMN42/flash.c')
-rw-r--r--board/siemens/SMN42/flash.c475
1 files changed, 0 insertions, 475 deletions
diff --git a/board/siemens/SMN42/flash.c b/board/siemens/SMN42/flash.c
deleted file mode 100644
index fc91574..0000000
--- a/board/siemens/SMN42/flash.c
+++ /dev/null
@@ -1,475 +0,0 @@
-/*
- * (C) Copyright 2006 Embedded Artists AB <www.embeddedartists.com>
- *
- * (C) Copyright 2007 Gary Jennejohn garyj@denx.de
- * Modified to use the routines in arch/arm/cpu/arm720t/lpc2292/flash.c.
- * Heavily modified to support the SMN42 board from Siemens
- *
- * 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/byteorder.h>
-#include <asm/arch/hardware.h>
-
-static unsigned long flash_addr_table[CONFIG_SYS_MAX_FLASH_BANKS] = CONFIG_SYS_FLASH_BANKS_LIST;
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-extern int lpc2292_copy_buffer_to_flash(flash_info_t *, ulong);
-extern int lpc2292_flash_erase(flash_info_t *, int, int);
-extern int lpc2292_write_buff (flash_info_t *, uchar *, ulong, ulong);
-static unsigned long ext_flash_init(void);
-static int ext_flash_erase(flash_info_t *, int, int);
-static int ext_write_buff(flash_info_t *, uchar *, ulong, ulong);
-
-/*-----------------------------------------------------------------------
- */
-
-ulong flash_init (void)
-{
- int j, k;
- ulong size = 0;
- ulong flashbase = 0;
-
- flash_info[0].flash_id = PHILIPS_LPC2292;
- flash_info[0].size = 0x003E000; /* 256 - 8 KB */
- flash_info[0].sector_count = 17;
- memset (flash_info[0].protect, 0, 17);
- flashbase = 0x00000000;
- for (j = 0, k = 0; j < 8; j++, k++) {
- flash_info[0].start[k] = flashbase;
- flashbase += 0x00002000;
- }
- for (j = 0; j < 2; j++, k++) {
- flash_info[0].start[k] = flashbase;
- flashbase += 0x00010000;
- }
- for (j = 0; j < 7; j++, k++) {
- flash_info[0].start[k] = flashbase;
- flashbase += 0x00002000;
- }
- size += flash_info[0].size;
-
- /* Protect monitor and environment sectors */
- flash_protect (FLAG_PROTECT_SET,
- 0x0,
- 0x0 + 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]);
-
- size += ext_flash_init();
-
- return size;
-}
-
-/*-----------------------------------------------------------------------
- */
-void flash_print_info (flash_info_t * info)
-{
- int i;
- int erased = 0;
- unsigned long j;
- unsigned long count;
- unsigned char *p;
-
- switch (info->flash_id & FLASH_VENDMASK) {
- case (PHILIPS_LPC2292 & FLASH_VENDMASK):
- printf("Philips: ");
- break;
- case FLASH_MAN_AMD:
- printf("AMD: ");
- break;
- default:
- printf ("Unknown Vendor ");
- break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case (PHILIPS_LPC2292 & FLASH_TYPEMASK):
- printf("LPC2292 internal flash\n");
- break;
- case FLASH_S29GL128N:
- printf ("S29GL128N (128 Mbit, uniform sector size)\n");
- break;
- default:
- printf("Unknown Chip Type\n");
- return;
- }
-
- printf (" Size: %ld KB in %d Sectors\n",
- info->size >> 10, info->sector_count);
-
- printf (" Sector Start Addresses:");
- for (i = 0; i < info->sector_count; i++) {
- if ((i % 5) == 0) {
- printf ("\n ");
- }
- if (i < (info->sector_count - 1)) {
- count = info->start[i+1] - info->start[i];
- }
- else {
- count = info->start[0] + info->size - info->start[i];
- }
- p = (unsigned char*)(info->start[i]);
- erased = 1;
- for (j = 0; j < count; j++) {
- if (*p != 0xFF) {
- erased = 0;
- break;
- }
- p++;
- }
- printf (" %08lX%s%s", info->start[i], info->protect[i] ? " RO" : " ",
- erased ? " E" : " ");
- }
- printf ("\n");
-}
-
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
- switch (info->flash_id & FLASH_TYPEMASK) {
- case (PHILIPS_LPC2292 & FLASH_TYPEMASK):
- return lpc2292_flash_erase(info, s_first, s_last);
- case FLASH_S29GL128N:
- return ext_flash_erase(info, s_first, s_last);
- default:
- return ERR_PROTECTED;
- }
- return ERR_PROTECTED;
-}
-
-int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
- switch (info->flash_id & FLASH_TYPEMASK) {
- case (PHILIPS_LPC2292 & FLASH_TYPEMASK):
- return lpc2292_write_buff(info, src, addr, cnt);
- case FLASH_S29GL128N:
- return ext_write_buff(info, src, addr, cnt);
- default:
- return ERR_PROG_ERROR;
- }
- return ERR_PROG_ERROR;
-}
-
-/*--------------------------------------------------------------------------
- * From here on is code for the external S29GL128N taken from cam5200_flash.c
- */
-
-#define CONFIG_SYS_FLASH_WORD_SIZE unsigned short
-
-static int wait_for_DQ7_32(flash_info_t * info, int sect)
-{
- ulong start, now, last;
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr =
- (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
-
- start = get_timer(0);
- last = start;
- while ((addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
- (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) {
- if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf("Timeout\n");
- return -1;
- }
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- putc('.');
- last = now;
- }
- }
- return 0;
-}
-
-int ext_flash_erase(flash_info_t * info, int s_first, int s_last)
-{
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2;
- int flag, prot, sect, l_sect, ret;
-
- ret = 0;
- 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_UNKNOWN) {
- printf("Can't erase unknown flash type - 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!", prot);
-
- printf("\n");
-
- l_sect = -1;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect <= s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
-
- addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
- addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
- addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080;
- addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
- addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
- addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00300030; /* sector erase */
-
- l_sect = sect;
- /*
- * Wait for each sector to complete, it's more
- * reliable. According to AMD Spec, you must
- * issue all erase commands within a specified
- * timeout. This has been seen to fail, especially
- * if printf()s are included (for debug)!!
- */
- ret = wait_for_DQ7_32(info, sect);
- if (ret) {
- ret = ERR_PROTECTED;
- break;
- }
- }
- }
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* wait at least 80us - let's wait 1 ms */
- udelay(1000);
-
- /* reset to read mode */
- addr = (CONFIG_SYS_FLASH_WORD_SIZE *) info->start[0];
- addr[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */
-
- if (ret)
- printf(" error\n");
- else
- printf(" done\n");
- return ret;
-}
-
-static ulong flash_get_size(vu_long * addr, flash_info_t * info)
-{
- short i;
- CONFIG_SYS_FLASH_WORD_SIZE value;
- ulong base = (ulong) addr;
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) addr;
-
- /* Write auto select command: read Manufacturer ID */
- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
- addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00900090;
- udelay(1000);
-
- value = addr2[0];
-
- switch (value) {
- case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_MANUFACT:
- info->flash_id = FLASH_MAN_AMD;
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- return (0); /* no or unknown flash */
- }
-
- value = addr2[1]; /* device ID */
-
- switch (value) {
- case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_MIRROR:
- value = addr2[14];
- switch(value) {
- case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_GL128N_2:
- value = addr2[15];
- if (value != (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_GL128N_3) {
- info->flash_id = FLASH_UNKNOWN;
- } else {
- info->flash_id += FLASH_S29GL128N;
- info->sector_count = 128;
- info->size = 0x01000000;
- }
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- return(0);
- }
- break;
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- return (0); /* => no or unknown flash */
- }
-
- /* set up sector start address table */
- for (i = 0; i < info->sector_count; i++)
- info->start[i] = base + (i * 0x00020000);
-
- /* check for protected sectors */
- for (i = 0; i < info->sector_count; i++) {
- /* read sector protection at sector address, (A7 .. A0) = 0x02 */
- /* D0 = 1 if protected */
- addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[i]);
-
- info->protect[i] = addr2[2] & 1;
- }
-
- /* issue bank reset to return to read mode */
- addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0;
-
- return (info->size);
-}
-
-static unsigned long ext_flash_init(void)
-{
- unsigned long total_b = 0;
- unsigned long size_b[CONFIG_SYS_MAX_FLASH_BANKS];
- int i;
-
- /* Init: no FLASHes known */
- for (i = 1; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- flash_info[i].sector_count = -1;
- flash_info[i].size = 0;
-
- /* call flash_get_size() to initialize sector address */
- size_b[i] = flash_get_size((vu_long *) flash_addr_table[i],
- &flash_info[i]);
-
- flash_info[i].size = size_b[i];
-
- if (flash_info[i].flash_id == FLASH_UNKNOWN) {
- printf("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
- i+1, size_b[i], size_b[i] << 20);
- flash_info[i].sector_count = -1;
- flash_info[i].size = 0;
- }
-
- total_b += flash_info[i].size;
- }
-
- return total_b;
-}
-
-static int write_word(flash_info_t * info, ulong dest, ushort data)
-{
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
- volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *) dest;
- volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 = (CONFIG_SYS_FLASH_WORD_SIZE *) &data;
- ulong start;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*dest2 & *data2) != *data2) {
- return (2);
- }
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
- addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00A000A0;
- *dest2 = *data2;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* data polling for D7 */
- start = get_timer(0);
- while ((*dest2 & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
- (*data2 & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080)) {
-
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- printf("WRITE_TOUT\n");
- return (1);
- }
- }
- return (0);
-}
-
-/*-----------------------------------------------------------------------
- * This is taken from the original flash.c for the LPC2292 SODIMM board
- * and modified to suit.
- */
-
-int ext_write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
- ushort tmp;
- ulong i;
- uchar* src_org;
- uchar* dst_org;
- ulong cnt_org = cnt;
- int ret = ERR_OK;
-
- src_org = src;
- dst_org = (uchar*)addr;
-
- if (addr & 1) { /* if odd address */
- tmp = *((uchar*)(addr - 1)); /* little endian */
- tmp |= (*src << 8);
- if (write_word(info, addr - 1, tmp))
- return ERR_PROG_ERROR;
- addr += 1;
- cnt -= 1;
- src++;
- }
- while (cnt > 1) {
- tmp = ((*(src+1)) << 8) + (*src); /* little endian */
- if (write_word(info, addr, tmp))
- return ERR_PROG_ERROR;
- addr += 2;
- src += 2;
- cnt -= 2;
- }
- if (cnt > 0) {
- tmp = (*((uchar*)(addr + 1))) << 8;
- tmp |= *src;
- if (write_word(info, addr, tmp))
- return ERR_PROG_ERROR;
- }
-
- for (i = 0; i < cnt_org; i++) {
- if (*dst_org != *src_org) {
- printf("Write failed. Byte %lX differs\n", i);
- ret = ERR_PROG_ERROR;
- break;
- }
- dst_org++;
- src_org++;
- }
-
- return ret;
-}