From b4676a25e2feb15826d960f4a216c3c429d2de75 Mon Sep 17 00:00:00 2001 From: wdenk Date: Sun, 7 Dec 2003 19:24:00 +0000 Subject: * Patch by Andre Schwarz, 24 Nov 2003: add support for mvblue (mvBlueLYNX and mvBlueBOX) boards * Patch by Pavel Bartusek, 21 Nov 2003: set ZMII bridge speed on 440 * Patch by Anders Larsen, 17 Nov 2003: Fix mismatched #ifdef / #endif in include/asm-arm/arch-pxa/hardware.h --- board/mvblue/flash.c | 583 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 583 insertions(+) create mode 100644 board/mvblue/flash.c (limited to 'board/mvblue/flash.c') diff --git a/board/mvblue/flash.c b/board/mvblue/flash.c new file mode 100644 index 0000000000..8df573aa0b --- /dev/null +++ b/board/mvblue/flash.c @@ -0,0 +1,583 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * (C) Copyright 2001-2003 + * + * Changes for MATRIX Vision mvBLUE devices + * MATRIX Vision GmbH / hg,as info@matrix-vision.de + * + * 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 +#include + +#if 0 + #define mvdebug(p) printf ##p +#else + #define mvdebug(p) +#endif + +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; + +#define FLASH_BUS_WIDTH 8 + +#if (FLASH_BUS_WIDTH==32) + #define FLASH_DATA_MASK 0xffffffff + #define FLASH_SHIFT 1 + #define FDT vu_long +#elif (FLASH_BUS_WIDTH==16) + #define FLASH_DATA_MASK 0xff + #define FLASH_SHIFT 0 + #define FDT vu_short +#elif (FLASH_BUS_WIDTH==8) + #define FLASH_DATA_MASK 0xff + #define FLASH_SHIFT 0 + #define FDT vu_char +#else + #error FLASH_BUS_WIDTH undefined +#endif + +/*----------------------------------------------------------------------- + * Functions + */ +static ulong flash_get_size (vu_long *address, flash_info_t *info); +static int write_word (flash_info_t *info, ulong dest, ulong data); +static void flash_get_offsets (ulong base, flash_info_t *info); + +/*----------------------------------------------------------------------- + */ +unsigned long flash_init (void) +{ + unsigned long size_b0; + int i; + + for (i=0; iflash_id & FLASH_BTYPE) + { /* bottom boot sector types - these are the useful ones! */ + /* set sector offsets for bottom boot block type */ + if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) + { /* AMDLV320B has 8 x 8k bottom boot sectors */ + for (i = 0; i < 8; i++) /* +8k */ + info->start[i] = base + (i * (0x00002000 << FLASH_SHIFT)); + for (; i < info->sector_count; i++) /* +64k */ + info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT)) - (0x00070000 << FLASH_SHIFT); + } + else + { /* other types have 4 bottom boot sectors (16,8,8,32) */ + i = 0; + info->start[i++] = base + 0x00000000; /* - */ + info->start[i++] = base + (0x00004000 << FLASH_SHIFT); /* +16k */ + info->start[i++] = base + (0x00006000 << FLASH_SHIFT); /* +8k */ + info->start[i++] = base + (0x00008000 << FLASH_SHIFT); /* +8k */ + info->start[i++] = base + (0x00010000 << FLASH_SHIFT); /* +32k */ + for (; i < info->sector_count; i++) /* +64k */ + info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT)) - (0x00030000 << FLASH_SHIFT); + } + } + else + { /* top boot sector types - not so useful */ + /* set sector offsets for top boot block type */ + if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) + { /* AMDLV320T has 8 x 8k top boot sectors */ + for (i = 0; i < info->sector_count - 8; i++) /* +64k */ + info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT)); + for (; i < info->sector_count; i++) /* +8k */ + info->start[i] = base + (i * (0x00002000 << FLASH_SHIFT)); + } + else + { /* other types have 4 top boot sectors (32,8,8,16) */ + for (i = 0; i < info->sector_count - 4; i++) /* +64k */ + info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT)); + + info->start[i++] = base + info->size - (0x00010000 << FLASH_SHIFT); /* -32k */ + info->start[i++] = base + info->size - (0x00008000 << FLASH_SHIFT); /* -8k */ + info->start[i++] = base + info->size - (0x00006000 << FLASH_SHIFT); /* -8k */ + info->start[i] = base + info->size - (0x00004000 << FLASH_SHIFT); /* -16k */ + } + } +} + +/*----------------------------------------------------------------------- + */ +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_STM: printf ("ST "); break; + default: printf ("Unknown Vendor "); break; + } + + switch (info->flash_id & FLASH_TYPEMASK) { + 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; + case FLASH_STMW320DB: printf ("M29W320B (32 Mbit, bottom boot sect)\n"); + break; + case FLASH_STMW320DT: printf ("M29W320T (32 Mbit, top boot sector)\n"); + break; + default: printf ("Unknown Chip Type\n"); + break; + } + + printf (" Size: %ld MB in %d Sectors\n", info->size >> 20, info->sector_count); + + printf (" Sector Start Addresses:"); + for (i=0; isector_count; ++i) { + if ((i % 5) == 0) + printf ("\n "); + printf (" %08lX%s", info->start[i], info->protect[i] ? " (RO)" : " "); + } + printf ("\n"); +} + +/* + * The following code cannot be run from FLASH! + */ + +#define AMD_ID_LV160T_MVS (AMD_ID_LV160T & FLASH_DATA_MASK) +#define AMD_ID_LV160B_MVS (AMD_ID_LV160B & FLASH_DATA_MASK) +#define AMD_ID_LV320T_MVS (AMD_ID_LV320T & FLASH_DATA_MASK) +#define AMD_ID_LV320B_MVS (AMD_ID_LV320B & FLASH_DATA_MASK) +#define STM_ID_W320DT_MVS (STM_ID_29W320DT & FLASH_DATA_MASK) +#define STM_ID_W320DB_MVS (STM_ID_29W320DB & FLASH_DATA_MASK) +#define AMD_MANUFACT_MVS (AMD_MANUFACT & FLASH_DATA_MASK) +#define FUJ_MANUFACT_MVS (FUJ_MANUFACT & FLASH_DATA_MASK) +#define STM_MANUFACT_MVS (STM_MANUFACT & FLASH_DATA_MASK) + +#if (FLASH_BUS_WIDTH >= 16) + #define AUTOSELECT_ADDR1 0x0555 + #define AUTOSELECT_ADDR2 0x02AA + #define AUTOSELECT_ADDR3 AUTOSELECT_ADDR1 +#else + #define AUTOSELECT_ADDR1 0x0AAA + #define AUTOSELECT_ADDR2 0x0555 + #define AUTOSELECT_ADDR3 AUTOSELECT_ADDR1 +#endif + +#define AUTOSELECT_DATA1 (0x00AA00AA & FLASH_DATA_MASK) +#define AUTOSELECT_DATA2 (0x00550055 & FLASH_DATA_MASK) +#define AUTOSELECT_DATA3 (0x00900090 & FLASH_DATA_MASK) + +#define RESET_BANK_DATA (0x00F000F0 & FLASH_DATA_MASK) + + +static ulong flash_get_size (vu_long *address, flash_info_t *info) +{ + short i; + FDT value; + FDT *addr = (FDT *)address; + + ulong base = (ulong)address; + addr[AUTOSELECT_ADDR1] = AUTOSELECT_DATA1; + addr[AUTOSELECT_ADDR2] = AUTOSELECT_DATA2; + addr[AUTOSELECT_ADDR3] = AUTOSELECT_DATA3; + __asm__ __volatile__("sync"); + + udelay(180); + + value = addr[0]; /* manufacturer ID */ + switch (value) { + case AMD_MANUFACT_MVS: + info->flash_id = FLASH_MAN_AMD; + break; + case FUJ_MANUFACT_MVS: + info->flash_id = FLASH_MAN_FUJ; + break; + case STM_MANUFACT_MVS: + info->flash_id = FLASH_MAN_STM; + break; + default: + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + return (0); /* no or unknown flash */ + } +#if (FLASH_BUS_WIDTH >= 16) + value = addr[1]; /* device ID */ +#else + value = addr[2]; /* device ID */ +#endif + + switch (value) { + case AMD_ID_LV160T_MVS: + info->flash_id += FLASH_AM160T; + info->sector_count = 37; + info->size = (0x00200000 << FLASH_SHIFT); + break; /* => 2 or 4 MB */ + + case AMD_ID_LV160B_MVS: + info->flash_id += FLASH_AM160B; + info->sector_count = 37; + info->size = (0x00200000 << FLASH_SHIFT); + break; /* => 2 or 4 MB */ + + case AMD_ID_LV320T_MVS: + info->flash_id += FLASH_AM320T; + info->sector_count = 71; + info->size = (0x00400000 << FLASH_SHIFT); + break; /* => 4 or 8 MB */ + + case AMD_ID_LV320B_MVS: + info->flash_id += FLASH_AM320B; + info->sector_count = 71; + info->size = (0x00400000 << FLASH_SHIFT); + break; /* => 4 or 8MB */ + + case STM_ID_W320DT_MVS: + info->flash_id += FLASH_STMW320DT; + info->sector_count = 67; + info->size = (0x00400000 << FLASH_SHIFT); + break; /* => 4 or 8 MB */ + + case STM_ID_W320DB_MVS: + info->flash_id += FLASH_STMW320DB; + info->sector_count = 67; + info->size = (0x00400000 << FLASH_SHIFT); + break; /* => 4 or 8MB */ + + default: + info->flash_id = FLASH_UNKNOWN; + return (0); /* => no or unknown flash */ + + } + + /* set up sector start address table */ + flash_get_offsets (base, info); + + /* 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 */ + addr = (FDT *)(info->start[i]); + info->protect[i] = addr[2] & 1; + } + + /* + * Prevent writes to uninitialized FLASH. + */ + if (info->flash_id != FLASH_UNKNOWN) { + addr = (FDT *)info->start[0]; + *addr = RESET_BANK_DATA; /* reset bank */ + } + return (info->size); +} + + +/*----------------------------------------------------------------------- + */ + +#if (FLASH_BUS_WIDTH >= 16) + #define ERASE_ADDR1 0x0555 + #define ERASE_ADDR2 0x02AA +#else + #define ERASE_ADDR1 0x0AAA + #define ERASE_ADDR2 0x0555 +#endif + +#define ERASE_ADDR3 ERASE_ADDR1 +#define ERASE_ADDR4 ERASE_ADDR1 +#define ERASE_ADDR5 ERASE_ADDR2 + +#define ERASE_DATA1 (0x00AA00AA & FLASH_DATA_MASK) +#define ERASE_DATA2 (0x00550055 & FLASH_DATA_MASK) +#define ERASE_DATA3 (0x00800080 & FLASH_DATA_MASK) +#define ERASE_DATA4 ERASE_DATA1 +#define ERASE_DATA5 ERASE_DATA2 + +#define ERASE_SECTOR_DATA (0x00300030 & FLASH_DATA_MASK) +#define ERASE_CHIP_DATA (0x00100010 & FLASH_DATA_MASK) +#define ERASE_CONFIRM_DATA (0x00800080 & FLASH_DATA_MASK) + +int flash_erase (flash_info_t *info, int s_first, int s_last) +{ + FDT *addr = (FDT *)(info->start[0]); + + int prot, sect, l_sect, flag; + ulong start, now, last; + + __asm__ __volatile__ ("sync"); + addr[0] = 0xf0; + udelay(1000); + + printf("\nflash_erase: first = %d @ 0x%08lx\n", s_first, info->start[s_first] ); + printf(" last = %d @ 0x%08lx\n", s_last , info->start[s_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(); + + addr[ERASE_ADDR1] = ERASE_DATA1; + addr[ERASE_ADDR2] = ERASE_DATA2; + addr[ERASE_ADDR3] = ERASE_DATA3; + addr[ERASE_ADDR4] = ERASE_DATA4; + addr[ERASE_ADDR5] = ERASE_DATA5; + + for (sect = s_first; sect <= s_last; sect++) { + if (info->protect[sect] == 0) { + addr = (FDT *)(info->start[sect]); + addr[0] = ERASE_SECTOR_DATA; + l_sect = sect; + } + } + + if (flag) + enable_interrupts(); + + /* + * We wait for the last triggered sector + */ + if (l_sect < 0) + goto DONE; + + start = get_timer (0); + last = start; + addr = (FDT *)(info->start[l_sect]); + + while ((addr[0] & ERASE_CONFIRM_DATA) != ERASE_CONFIRM_DATA) { + if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) { + printf ("Timeout\n"); + return 1; + } + /* show that we're waiting */ + if ((now - last) > 1000) { /* every second */ + putc ('.'); + last = now; + } + } + +DONE: + 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) +{ +#define BUFF_INC 4 + ulong cp, wp, data; + int i, l, rc; + + mvdebug (("+write_buff %p ==> 0x%08lx, count = 0x%08lx\n", src, addr, cnt)); + + wp = (addr & ~3); /* get lower word aligned address */ + /* + * handle unaligned start bytes + */ + if ((l = addr - wp) != 0) { + mvdebug ((" handle unaligned start bytes (cnt = 0x%08lx)\n", cnt)); + data = 0; + for (i=0, cp=wp; i0; ++i) { + data = (data << 8) | *src++; + --cnt; + ++cp; + } + for (; cnt==0 && i= BUFF_INC) { + data = 0; + for (i=0; i0; ++i, ++cp) { + data = (data << 8) | *src++; + --cnt; + } + for (; i= 16) + #define WRITE_ADDR1 0x0555 + #define WRITE_ADDR2 0x02AA +#else + #define WRITE_ADDR1 0x0AAA + #define WRITE_ADDR2 0x0555 + #define WRITE_ADDR3 WRITE_ADDR1 +#endif + +#define WRITE_DATA1 (0x00AA00AA & FLASH_DATA_MASK) +#define WRITE_DATA2 (0x00550055 & FLASH_DATA_MASK) +#define WRITE_DATA3 (0x00A000A0 & FLASH_DATA_MASK) + +#define WRITE_CONFIRM_DATA ERASE_CONFIRM_DATA + +/*----------------------------------------------------------------------- + * Write a byte to Flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + */ +static int write_char (flash_info_t *info, ulong dest, uchar data) +{ + vu_char *addr = (vu_char *)(info->start[0]); + ulong start; + int flag; + + /* Check if Flash is (sufficiently) erased */ + if ((*((vu_char *)dest) & data) != data) { + printf(" *** ERROR: Flash not erased !\n"); + return (2); + } + flag = disable_interrupts(); + + addr[WRITE_ADDR1] = WRITE_DATA1; + addr[WRITE_ADDR2] = WRITE_DATA2; + addr[WRITE_ADDR3] = WRITE_DATA3; + *((vu_char *)dest) = data; + + if (flag) + enable_interrupts(); + + /* data polling for D7 */ + start = get_timer (0); + addr = (vu_char *)dest; + while (( (*addr) & WRITE_CONFIRM_DATA) != (data & WRITE_CONFIRM_DATA)) { + if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { + printf(" *** ERROR: Flash write timeout !"); + return (1); + } + } + mvdebug (("-write_byte\n")); + return (0); +} + +/*----------------------------------------------------------------------- + * 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) +{ + int i, + result = 0; + + mvdebug (("+write_word : 0x%08lx @ 0x%08lx\n", data, dest)); + for ( i=0; (i < 4) && (result == 0); i++, dest+=1 ) + result = write_char (info, dest, (data >> (8*(3-i))) & 0xff ); + mvdebug (("-write_word\n")); + return result; +} +/*---------------------------------------------------------------- */ -- cgit