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authorMasahiro Yamada <yamada.m@jp.panasonic.com>2014-12-15 23:26:26 +0900
committerTom Rini <trini@ti.com>2015-01-05 12:08:54 -0500
commit87882f572703c18a15b35e7c2a4dc2225a16627c (patch)
tree30bfe30953aee7a02f1c8eb168d1b7a4aa13be50 /board/iphase4539/flash.c
parentd2fd1d662361dbabd0b2df416532d295224a50f9 (diff)
mpc8260: remove IPHASE4539 board support
This board is still a non-generic board. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Wolfgang Grandegger <wg@denx.de>
Diffstat (limited to 'board/iphase4539/flash.c')
-rw-r--r--board/iphase4539/flash.c474
1 files changed, 0 insertions, 474 deletions
diff --git a/board/iphase4539/flash.c b/board/iphase4539/flash.c
deleted file mode 100644
index 3c2dad67b5..0000000000
--- a/board/iphase4539/flash.c
+++ /dev/null
@@ -1,474 +0,0 @@
-/*
- * (C) Copyright 2001
- * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
- *
- * (C) Copyright 2002
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * Adapted for Interphase 4539 by Wolfgang Grandegger <wg@denx.de>.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <config.h>
-#include <common.h>
-#include <flash.h>
-#include <asm/io.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-extern int hwc_flash_size(void);
-static ulong flash_get_size (u32 addr, flash_info_t *info);
-static int flash_get_offsets (u32 base, flash_info_t *info);
-static int write_word (flash_info_t *info, ulong dest, ulong data);
-static void flash_reset (u32 addr);
-
-#define out8(a,v) *(volatile unsigned char*)(a) = v
-#define in8(a) *(volatile unsigned char*)(a)
-#define in32(a) *(volatile unsigned long*)(a)
-#define iobarrier_rw() eieio()
-
-unsigned long flash_init (void)
-{
- unsigned int i;
- unsigned long flash_size = 0;
- unsigned long bank_size;
- unsigned int bank = 0;
-
- /* Init: no FLASHes known */
- for (i=0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- flash_info[i].sector_count = 0;
- flash_info[i].size = 0;
- }
-
- /* Initialise the BOOT Flash */
- if (bank == CONFIG_SYS_MAX_FLASH_BANKS) {
- puts ("Warning: not all Flashes are initialised !");
- return flash_size;
- }
-
- bank_size = flash_get_size (CONFIG_SYS_FLASH_BASE, flash_info + bank);
- if (bank_size) {
-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE && \
- CONFIG_SYS_MONITOR_BASE < CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MAX_FLASH_SIZE
- /* monitor protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,
- flash_info + bank);
-#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 + bank);
-#endif
-
- /* HWC protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_FLASH_BASE,
- CONFIG_SYS_FLASH_BASE + 0x10000 - 1,
- flash_info + bank);
-
- flash_size += bank_size;
- bank++;
- } else {
- puts ("Warning: the BOOT Flash is not initialised !");
- }
-
- return flash_size;
-}
-
-/*
- * The following code cannot be run from FLASH!
- */
-static ulong flash_get_size (u32 addr, flash_info_t *info)
-{
- volatile uchar value;
-#if 0
- int i;
-#endif
-
- /* Write auto select command: read Manufacturer ID */
- out8(addr + 0x0555, 0xAA);
- iobarrier_rw();
- udelay(10);
- out8(addr + 0x02AA, 0x55);
- iobarrier_rw();
- udelay(10);
- out8(addr + 0x0555, 0x90);
- iobarrier_rw();
- udelay(10);
-
- value = in8(addr);
- iobarrier_rw();
- udelay(10);
- switch (value | (value << 16)) {
- case AMD_MANUFACT:
- info->flash_id = FLASH_MAN_AMD;
- break;
-
- case FUJ_MANUFACT:
- info->flash_id = FLASH_MAN_FUJ;
- break;
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- flash_reset (addr);
- return 0;
- }
-
- value = in8(addr + 1); /* device ID */
- iobarrier_rw();
-
- switch (value) {
- case AMD_ID_LV033C:
- info->flash_id += FLASH_AM033C;
- info->size = hwc_flash_size();
- if (info->size > CONFIG_SYS_MAX_FLASH_SIZE) {
- printf("U-Boot supports only %d MB\n",
- CONFIG_SYS_MAX_FLASH_SIZE);
- info->size = CONFIG_SYS_MAX_FLASH_SIZE;
- }
- info->sector_count = info->size / 0x10000;
- break; /* => 4 MB */
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- flash_reset (addr);
- return (0); /* => no or unknown flash */
-
- }
-
- if (!flash_get_offsets (addr, info)) {
- flash_reset (addr);
- return 0;
- }
-
-#if 0
- /* 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 */
- value = in8(info->start[i] + 2);
- iobarrier_rw();
- info->protect[i] = (value & 1) != 0;
- }
-#endif
-
- /*
- * Reset bank to read mode
- */
- flash_reset (addr);
-
- return (info->size);
-}
-
-static int flash_get_offsets (u32 base, flash_info_t *info)
-{
- unsigned int i, size;
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_AM033C:
- /* set sector offsets for uniform sector type */
- size = info->size / info->sector_count;
- for (i = 0; i < info->sector_count; i++) {
- info->start[i] = base + i * size;
- }
- break;
- default:
- return 0;
- }
-
- return 1;
-}
-
-int flash_erase (flash_info_t *info, int s_first, int s_last)
-{
- volatile u32 addr = info->start[0];
- int flag, prot, sect, l_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_UNKNOWN ||
- info->flash_id > FLASH_AMD_COMP) {
- printf ("Can't erase unknown flash type %08lx - aborted\n",
- info->flash_id);
- 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");
- }
-
- l_sect = -1;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- out8(addr + 0x555, 0xAA);
- iobarrier_rw();
- out8(addr + 0x2AA, 0x55);
- iobarrier_rw();
- out8(addr + 0x555, 0x80);
- iobarrier_rw();
- out8(addr + 0x555, 0xAA);
- iobarrier_rw();
- out8(addr + 0x2AA, 0x55);
- iobarrier_rw();
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- addr = info->start[sect];
- out8(addr, 0x30);
- iobarrier_rw();
- l_sect = sect;
- }
- }
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* wait at least 80us - let's wait 1 ms */
- udelay (1000);
-
- /*
- * We wait for the last triggered sector
- */
- if (l_sect < 0)
- goto DONE;
-
- start = get_timer (0);
- last = start;
- addr = info->start[l_sect];
- while ((in8(addr) & 0x80) != 0x80) {
- 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;
- }
- iobarrier_rw();
- }
-
-DONE:
- /* reset to read mode */
- flash_reset (info->start[0]);
-
- printf (" done\n");
- return 0;
-}
-
-/*
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
-{
- ulong cp, wp, data;
- int i, l, 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);
- }
- for (; i<4 && cnt>0; ++i) {
- data = (data << 8) | *src++;
- --cnt;
- ++cp;
- }
- for (; cnt==0 && i<4; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- if ((rc = write_word(info, wp, data)) != 0) {
- return (rc);
- }
- wp += 4;
- }
-
- /*
- * handle word aligned part
- */
- while (cnt >= 4) {
- data = 0;
- for (i=0; i<4; ++i) {
- data = (data << 8) | *src++;
- }
- if ((rc = write_word(info, wp, data)) != 0) {
- return (rc);
- }
- wp += 4;
- cnt -= 4;
- }
-
- if (cnt == 0) {
- return (0);
- }
-
- /*
- * handle unaligned tail bytes
- */
- data = 0;
- for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
- data = (data << 8) | *src++;
- --cnt;
- }
- for (; i<4; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- return (write_word(info, wp, data));
-}
-
-/*
- * Write a word to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_word (flash_info_t *info, ulong dest, ulong data)
-{
- volatile u32 addr = info->start[0];
- ulong start;
- int flag, i;
-
- /* Check if Flash is (sufficiently) erased */
- if ((in32(dest) & data) != data) {
- return (2);
- }
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- /* first, perform an unlock bypass command to speed up flash writes */
- out8(addr + 0x555, 0xAA);
- iobarrier_rw();
- out8(addr + 0x2AA, 0x55);
- iobarrier_rw();
- out8(addr + 0x555, 0x20);
- iobarrier_rw();
-
- /* write each byte out */
- for (i = 0; i < 4; i++) {
- char *data_ch = (char *)&data;
- out8(addr, 0xA0);
- iobarrier_rw();
- out8(dest+i, data_ch[i]);
- iobarrier_rw();
- udelay(10); /* XXX */
- }
-
- /* we're done, now do an unlock bypass reset */
- out8(addr, 0x90);
- iobarrier_rw();
- out8(addr, 0x00);
- iobarrier_rw();
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* data polling for D7 */
- start = get_timer (0);
- while ((in32(dest) & 0x80808080) != (data & 0x80808080)) {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- return (1);
- }
- iobarrier_rw();
- }
-
- flash_reset (addr);
-
- return (0);
-}
-
-/*
- * Reset bank to read mode
- */
-static void flash_reset (u32 addr)
-{
- out8(addr, 0xF0); /* reset bank */
- iobarrier_rw();
-}
-
-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_BM: printf ("BRIGHT MICRO "); break;
- default: printf ("Unknown Vendor "); break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_AM033C: printf ("AM29LV033C (32 Mbit, uniform sectors)\n");
- break;
- default: printf ("Unknown Chip Type\n");
- break;
- }
-
- if (info->size % 0x100000 == 0) {
- printf (" Size: %ld MB in %d Sectors\n",
- info->size / 0x100000, info->sector_count);
- }
- else if (info->size % 0x400 == 0) {
- printf (" Size: %ld KB in %d Sectors\n",
- info->size / 0x400, info->sector_count);
- }
- else {
- printf (" Size: %ld B in %d Sectors\n",
- info->size, 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");
-}