diff options
author | Stefan Roese <sr@denx.de> | 2013-02-07 01:48:30 +0000 |
---|---|---|
committer | Tom Rini <trini@ti.com> | 2013-03-11 17:00:28 -0400 |
commit | 7c9e89bd1f62ccd76eee8ad4c36185057576dd95 (patch) | |
tree | 41548e50ff2dddc30913c00200ba8ef41dd6d0c5 /board/pcippc2/flash.c | |
parent | efd7c11404e59874d4da86d04cab4acacf77d793 (diff) |
ppc: Remove PCIPPC2 and PCIPPC6 boards
These boards seem to be unmaintained for quite some time. So lets
remove support for them completely. This also cleans up some
common drivers/files.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Guillaume Alexandre <guillaume.alexandre@gespac.ch>
Acked-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'board/pcippc2/flash.c')
-rw-r--r-- | board/pcippc2/flash.c | 573 |
1 files changed, 0 insertions, 573 deletions
diff --git a/board/pcippc2/flash.c b/board/pcippc2/flash.c deleted file mode 100644 index ec604e0d60e..00000000000 --- a/board/pcippc2/flash.c +++ /dev/null @@ -1,573 +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. - * - * 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 <config.h> -#include <common.h> -#include <flash.h> -#include <asm/io.h> - -/*---------------------------------------------------------------------*/ -#undef DEBUG_FLASH - -#ifdef DEBUG_FLASH -#define DEBUGF(fmt,args...) printf(fmt ,##args) -#else -#define DEBUGF(fmt,args...) -#endif -/*---------------------------------------------------------------------*/ - -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; - -static ulong flash_get_size (ulong addr, flash_info_t *info); -static int flash_get_offsets (ulong base, flash_info_t *info); -static int write_word (flash_info_t *info, ulong dest, ulong data); -static void flash_reset (ulong addr); - -unsigned long flash_init (void) -{ - unsigned int i; - unsigned long flash_size = 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; - } - - DEBUGF("\n## Get flash size @ 0x%08x\n", CONFIG_SYS_FLASH_BASE); - - flash_size = flash_get_size (CONFIG_SYS_FLASH_BASE, flash_info); - - DEBUGF("## Flash bank size: %08lx\n", flash_size); - - if (flash_size) { -#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE && \ - CONFIG_SYS_MONITOR_BASE < CONFIG_SYS_FLASH_BASE + CONFIG_SYS_FLASH_MAX_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[0]); -#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[0]); -#endif - - } 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 (ulong addr, flash_info_t *info) -{ - short i; - uchar value; - - /* Write auto select command: read Manufacturer ID */ - out8(addr + 0x0555, 0xAA); - iobarrier_rw(); - out8(addr + 0x02AA, 0x55); - iobarrier_rw(); - out8(addr + 0x0555, 0x90); - iobarrier_rw(); - - value = in8(addr); - iobarrier_rw(); - - DEBUGF("Manuf. ID @ 0x%08lx: 0x%08x\n", (ulong)addr, value); - - switch (value | (value << 16)) { - case AMD_MANUFACT: - info->flash_id = FLASH_MAN_AMD; - break; - - case FUJ_MANUFACT: - info->flash_id = FLASH_MAN_FUJ; - break; - - case STM_MANUFACT: - info->flash_id = FLASH_MAN_STM; - break; - - default: - info->flash_id = FLASH_UNKNOWN; - info->sector_count = 0; - info->size = 0; - flash_reset (addr); - return 0; - } - - value = in8(addr + 1); /* device ID */ - iobarrier_rw(); - - DEBUGF("Device ID @ 0x%08lx: 0x%08x\n", addr+1, value); - - switch ((ulong)value) { - case AMD_ID_F040B: - DEBUGF("Am29F040B\n"); - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x00080000; - break; /* => 512 kB */ - - case AMD_ID_LV040B: - DEBUGF("Am29LV040B\n"); - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x00080000; - break; /* => 512 kB */ - - case AMD_ID_LV400T: - DEBUGF("Am29LV400T\n"); - info->flash_id += FLASH_AM400T; - info->sector_count = 11; - info->size = 0x00100000; - break; /* => 1 MB */ - - case AMD_ID_LV400B: - DEBUGF("Am29LV400B\n"); - info->flash_id += FLASH_AM400B; - info->sector_count = 11; - info->size = 0x00100000; - break; /* => 1 MB */ - - case AMD_ID_LV800T: - DEBUGF("Am29LV800T\n"); - info->flash_id += FLASH_AM800T; - info->sector_count = 19; - info->size = 0x00200000; - break; /* => 2 MB */ - - case AMD_ID_LV800B: - DEBUGF("Am29LV400B\n"); - info->flash_id += FLASH_AM800B; - info->sector_count = 19; - info->size = 0x00200000; - break; /* => 2 MB */ - - case AMD_ID_LV160T: - DEBUGF("Am29LV160T\n"); - info->flash_id += FLASH_AM160T; - info->sector_count = 35; - info->size = 0x00400000; - break; /* => 4 MB */ - - case AMD_ID_LV160B: - DEBUGF("Am29LV160B\n"); - info->flash_id += FLASH_AM160B; - info->sector_count = 35; - info->size = 0x00400000; - break; /* => 4 MB */ - - case AMD_ID_LV320T: - DEBUGF("Am29LV320T\n"); - info->flash_id += FLASH_AM320T; - info->sector_count = 67; - info->size = 0x00800000; - break; /* => 8 MB */ - -#if 0 - /* Has the same ID as AMD_ID_LV320T, to be fixed */ - case AMD_ID_LV320B: - DEBUGF("Am29LV320B\n"); - info->flash_id += FLASH_AM320B; - info->sector_count = 67; - info->size = 0x00800000; - break; /* => 8 MB */ -#endif - - case AMD_ID_LV033C: - DEBUGF("Am29LV033C\n"); - info->flash_id += FLASH_AM033C; - info->sector_count = 64; - info->size = 0x01000000; - break; /* => 16Mb */ - - case STM_ID_F040B: - DEBUGF("M29F040B\n"); - info->flash_id += FLASH_AM040; - info->sector_count = 8; - info->size = 0x00080000; - break; /* => 512 kB */ - - default: - info->flash_id = FLASH_UNKNOWN; - flash_reset (addr); - return (0); /* => no or unknown flash */ - - } - - if (info->sector_count > CONFIG_SYS_MAX_FLASH_SECT) { - printf ("** ERROR: sector count %d > max (%d) **\n", - info->sector_count, CONFIG_SYS_MAX_FLASH_SECT); - info->sector_count = CONFIG_SYS_MAX_FLASH_SECT; - } - - if (! flash_get_offsets (addr, info)) { - flash_reset (addr); - return 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; - } - - /* - * Reset bank to read mode - */ - flash_reset (addr); - - return (info->size); -} - -static int flash_get_offsets (ulong base, flash_info_t *info) -{ - unsigned int i; - - switch (info->flash_id & FLASH_TYPEMASK) { - case FLASH_AM040: - /* set sector offsets for uniform sector type */ - for (i = 0; i < info->sector_count; i++) { - info->start[i] = base + i * info->size / - info->sector_count; - } - break; - default: - return 0; - } - - return 1; -} - -int flash_erase (flash_info_t *info, int s_first, int s_last) -{ - volatile ulong 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) { - 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]; - - DEBUGF ("Start erase timeout: %d\n", CONFIG_SYS_FLASH_ERASE_TOUT); - - while ((in8(addr) & 0x80) != 0x80) { - if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { - printf ("Timeout\n"); - flash_reset (info->start[0]); - 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 ulong addr = info->start[0]; - ulong start; - int i; - - /* Check if Flash is (sufficiently) erased */ - if ((in32(dest) & data) != data) { - return (2); - } - - /* write each byte out */ - for (i = 0; i < 4; i++) { - char *data_ch = (char *)&data; - int flag = disable_interrupts(); - - out8(addr + 0x555, 0xAA); - iobarrier_rw(); - out8(addr + 0x2AA, 0x55); - iobarrier_rw(); - out8(addr + 0x555, 0xA0); - iobarrier_rw(); - out8(dest+i, data_ch[i]); - iobarrier_rw(); - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* data polling for D7 */ - start = get_timer (0); - while ((in8(dest+i) & 0x80) != (data_ch[i] & 0x80)) { - if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { - flash_reset (addr); - return (1); - } - iobarrier_rw(); - } - } - - flash_reset (addr); - return (0); -} - -/* - * Reset bank to read mode - */ -static void flash_reset (ulong 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; - case FLASH_MAN_STM: printf ("SGS THOMSON "); break; - default: printf ("Unknown Vendor "); break; - } - - switch (info->flash_id & FLASH_TYPEMASK) { - case FLASH_AM040: printf ("29F040 or 29LV040 (4 Mbit, uniform sectors)\n"); - break; - case FLASH_AM400B: printf ("AM29LV400B (4 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM400T: printf ("AM29LV400T (4 Mbit, top boot sector)\n"); - break; - case FLASH_AM800B: printf ("AM29LV800B (8 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM800T: printf ("AM29LV800T (8 Mbit, top boot sector)\n"); - break; - case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n"); - break; - case FLASH_AM320B: printf ("AM29LV320B (32 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\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"); -} |