diff options
Diffstat (limited to 'board/cmi')
| -rw-r--r-- | board/cmi/Makefile | 47 | ||||
| -rw-r--r-- | board/cmi/cmi.c | 73 | ||||
| -rw-r--r-- | board/cmi/config.mk | 31 | ||||
| -rw-r--r-- | board/cmi/flash.c | 517 | ||||
| -rw-r--r-- | board/cmi/u-boot.lds | 131 |
5 files changed, 799 insertions, 0 deletions
diff --git a/board/cmi/Makefile b/board/cmi/Makefile new file mode 100644 index 0000000..0a92da8 --- /dev/null +++ b/board/cmi/Makefile @@ -0,0 +1,47 @@ +# +# (C) Copyright 2001 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 $(TOPDIR)/config.mk + +LIB = lib$(BOARD).a + +OBJS := flash.o cmi.o +SOBJS := + +$(LIB): $(OBJS) + $(AR) crv $@ $^ + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c) + $(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@ + +-include .depend + +######################################################################### diff --git a/board/cmi/cmi.c b/board/cmi/cmi.c new file mode 100644 index 0000000..cbf34f7 --- /dev/null +++ b/board/cmi/cmi.c @@ -0,0 +1,73 @@ +/* + * (C) Copyright 2003 + * Martin Winistoerfer, martinwinistoerfer@gmx.ch. + * + * 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 + */ + +/* + * File: cmi.c + * + * Discription: For generic board specific functions + * + */ + + +#include <common.h> +#include <mpc5xx.h> + +#define SRAM_SIZE 1024000L /* 1M RAM available*/ + +#if defined(__APPLE__) +/* Leading underscore on symbols */ +# define SYM_CHAR "_" +#else /* No leading character on symbols */ +# define SYM_CHAR +#endif + +/* + * Macros to generate global absolutes. + */ +#define GEN_SYMNAME(str) SYM_CHAR #str +#define GEN_VALUE(str) #str +#define GEN_ABS(name, value) \ + asm (".globl " GEN_SYMNAME(name)); \ + asm (GEN_SYMNAME(name) " = " GEN_VALUE(value)) + +/* + * Check the board + */ +int checkboard(void) +{ + puts ("Board: ### No HW ID - assuming CMI board\n"); + return (0); +} + +/* + * Get RAM size. + */ +long int initdram(int board_type) +{ + return (SRAM_SIZE); /* We currently have a static size adapted for cmi board. */ +} + +/* + * Absolute environment address for linker file. + */ +GEN_ABS(env_start, CFG_ENV_OFFSET + CFG_FLASH_BASE); diff --git a/board/cmi/config.mk b/board/cmi/config.mk new file mode 100644 index 0000000..564f638 --- /dev/null +++ b/board/cmi/config.mk @@ -0,0 +1,31 @@ +# +# (C) Copyright 2003 +# Martin Winistoerfer, martinwinistoerfer@gmx.ch. +# +# 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 +# + +# +# EPQ Board Configuration +# + +# Boot from flash at location 0x00000000 +TEXT_BASE = 0x02000000 + +PLATFORM_CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) -I$(TOPDIR) diff --git a/board/cmi/flash.c b/board/cmi/flash.c new file mode 100644 index 0000000..b41ff12 --- /dev/null +++ b/board/cmi/flash.c @@ -0,0 +1,517 @@ +/* + * (C) Copyright 2003 + * Martin Winistoerfer, martinwinistoerfer@gmx.ch. + * + * 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 + */ + +/* + * File: flash.c + * + * Discription: This Driver is for 28F320J3A, 28F640J3A and + * 28F128J3A Intel flashs working in 16 Bit mode. + * They are single bank flashs. + * + * Most of this code is taken from existing u-boot + * source code. + */ + + +#include <common.h> +#include <mpc5xx.h> + +#if defined(CFG_ENV_IS_IN_FLASH) +# ifndef CFG_ENV_ADDR +# define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET) +# endif +# ifndef CFG_ENV_SIZE +# define CFG_ENV_SIZE CFG_ENV_SECT_SIZE +# endif +# ifndef CFG_ENV_SECT_SIZE +# define CFG_ENV_SECT_SIZE CFG_ENV_SIZE +# endif +#endif + +#define FLASH_ID_MASK 0xFFFF +#define FLASH_BLOCK_SIZE 0x00010000 +#define FLASH_CMD_READ_ID 0x0090 +#define FLASH_CMD_RESET 0x00ff +#define FLASH_CMD_BLOCK_ERASE 0x0020 +#define FLASH_CMD_ERASE_CONFIRM 0x00D0 +#define FLASH_CMD_CLEAR_STATUS 0x0050 +#define FLASH_CMD_SUSPEND_ERASE 0x00B0 +#define FLASH_CMD_WRITE 0x0040 +#define FLASH_CMD_PROTECT 0x0060 +#define FLASH_CMD_PROTECT_SET 0x0001 +#define FLASH_CMD_PROTECT_CLEAR 0x00D0 +#define FLASH_STATUS_DONE 0x0080 + +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; + +/* + * Local function prototypes + */ +static ulong flash_get_size (vu_short *addr, flash_info_t *info); +static int write_short (flash_info_t *info, ulong dest, ushort data); +static void flash_get_offsets (ulong base, flash_info_t *info); + +/* + * Initialize flash + */ + +unsigned long flash_init (void) +{ + unsigned long size_b0; + int i; + + /* Init: no FLASHes known */ + for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) { + flash_info[i].flash_id = FLASH_UNKNOWN; + } + + /* Static FLASH Bank configuration here - FIXME XXX */ +#if 1 + debug ("\n## Get flash bank 1 size @ 0x%08x\n",FLASH_BASE0_PRELIM); +#endif + size_b0 = flash_get_size((vu_short *)FLASH_BASE0_PRELIM, &flash_info[0]); + + if (flash_info[0].flash_id == FLASH_UNKNOWN) { + printf ("## Unknown FLASH on Bank 0: " + "ID 0x%lx, Size = 0x%08lx = %ld MB\n", + flash_info[0].flash_id, + size_b0, size_b0<<20); + } + + flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]); + + flash_info[0].size = size_b0; + +#if CFG_MONITOR_BASE >= CFG_FLASH_BASE + /* monitor protection ON by default */ + flash_protect(FLAG_PROTECT_SET, + CFG_MONITOR_BASE, + CFG_MONITOR_BASE+CFG_MONITOR_LEN-1, + &flash_info[0]); +#endif + +#ifdef CFG_ENV_IS_IN_FLASH + /* ENV protection ON by default */ + flash_protect(FLAG_PROTECT_SET, + CFG_ENV_ADDR, + CFG_ENV_ADDR+CFG_ENV_SECT_SIZE-1, + &flash_info[0]); +#endif + + return size_b0; +} + +/* + * Compute start adress of each sector (block) + */ + +static void flash_get_offsets (ulong base, flash_info_t *info) +{ + int i; + + if (info->flash_id == FLASH_UNKNOWN) { + return; + } + + switch (info->flash_id & FLASH_VENDMASK) { + case FLASH_MAN_INTEL: + for (i = 0; i < info->sector_count; i++) { + info->start[i] = base + i * FLASH_BLOCK_SIZE; + } + return; + + default: + printf ("Don't know sector offsets for flash type 0x%lx\n", + info->flash_id); + return; + } +} + +/* + * Print flash information + */ +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_SST: printf ("SST "); break; + case FLASH_MAN_STM: printf ("STM "); break; + case FLASH_MAN_INTEL: printf ("Intel "); break; + case FLASH_MAN_MT: printf ("MT "); break; + default: printf ("Unknown Vendor "); break; + } + + switch (info->flash_id & FLASH_TYPEMASK) { + case FLASH_28F320J3A: printf ("28F320J3A (32Mbit) 16-Bit\n"); + break; + case FLASH_28F640J3A: printf ("28F640J3A (64Mbit) 16-Bit\n"); + break; + case FLASH_28F128J3A: printf ("28F128J3A (128Mbit) 16-Bit\n"); + break; + default: printf ("Unknown Chip Type\n"); + break; + } + + if (info->size >= (1 << 20)) { + i = 20; + } else { + i = 10; + } + printf (" Size: %ld %cB in %d Sectors\n", + info->size >> i, + (i == 20) ? 'M' : 'k', + 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"); + return; +} + +/* + * Get size of flash in bytes. + * The following code cannot be run from FLASH! + */ + +static ulong flash_get_size (vu_short *addr, flash_info_t *info) +{ + vu_short value; + + /* Read Manufacturer ID */ + addr[0] = FLASH_CMD_READ_ID; + value = addr[0]; + + switch (value) { + case (AMD_MANUFACT & FLASH_ID_MASK): + info->flash_id = FLASH_MAN_AMD; + break; + case (FUJ_MANUFACT & FLASH_ID_MASK): + info->flash_id = FLASH_MAN_FUJ; + break; + case (SST_MANUFACT & FLASH_ID_MASK): + info->flash_id = FLASH_MAN_SST; + break; + case (STM_MANUFACT & FLASH_ID_MASK): + info->flash_id = FLASH_MAN_STM; + break; + case (INTEL_MANUFACT & FLASH_ID_MASK): + info->flash_id = FLASH_MAN_INTEL; + break; + default: + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + addr[0] = FLASH_CMD_RESET; /* restore read mode */ + return (0); /* no or unknown flash */ + } + + value = addr[1]; /* device ID */ + + switch (value) { + case (INTEL_ID_28F320J3A & FLASH_ID_MASK): + info->flash_id += FLASH_28F320J3A; + info->sector_count = 32; + info->size = 0x00400000; + break; /* => 32 MBit */ + + case (INTEL_ID_28F640J3A & FLASH_ID_MASK): + info->flash_id += FLASH_28F640J3A; + info->sector_count = 64; + info->size = 0x00800000; + break; /* => 64 MBit */ + + case (INTEL_ID_28F128J3A & FLASH_ID_MASK): + info->flash_id += FLASH_28F128J3A; + info->sector_count = 128; + info->size = 0x01000000; + break; /* => 128 MBit */ + + default: + info->flash_id = FLASH_UNKNOWN; + addr[0] = FLASH_CMD_RESET; /* restore read mode */ + return (0); /* => no or unknown flash */ + + } + + if (info->sector_count > CFG_MAX_FLASH_SECT) { + printf ("** ERROR: sector count %d > max (%d) **\n", + info->sector_count, CFG_MAX_FLASH_SECT); + info->sector_count = CFG_MAX_FLASH_SECT; + } + + addr[0] = FLASH_CMD_RESET; /* restore read mode */ + + return (info->size); +} + + +/* + * Erase unprotected sectors + */ + +int flash_erase (flash_info_t *info, int s_first, int s_last) +{ + int flag, prot, 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_VENDMASK) != FLASH_MAN_INTEL) { + printf ("Can erase only Intel flash types - 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!\n", + prot); + } else { + printf ("\n"); + } + + start = get_timer (0); + last = start; + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect<=s_last; sect++) { + if (info->protect[sect] == 0) { /* not protected */ + vu_short *addr = (vu_short *)(info->start[sect]); + unsigned long status; + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts(); + +#ifdef DEBUG + printf("Erase sector %d at start addr 0x%08X", sect, (unsigned int)info->start[sect]); +#endif + + *addr = FLASH_CMD_CLEAR_STATUS; + *addr = FLASH_CMD_BLOCK_ERASE; + *addr = FLASH_CMD_ERASE_CONFIRM; + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); + + /* wait at least 80us - let's wait 1 ms */ + udelay (1000); + + while (((status = *addr) & FLASH_STATUS_DONE) != FLASH_STATUS_DONE) { + if ((now=get_timer(start)) > CFG_FLASH_ERASE_TOUT) { + printf("Flash erase timeout at address %lx\n", info->start[sect]); + *addr = FLASH_CMD_SUSPEND_ERASE; + *addr = FLASH_CMD_RESET; + return 1; + } + + /* show that we're waiting */ + if ((now - last) > 1000) { /* every second */ + putc ('.'); + last = now; + } + } + *addr = FLASH_CMD_RESET; + } + } + printf (" done\n"); + return 0; +} + +/* + * Copy memory to flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + * 4 - Flash not identified + */ + +int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) +{ + ulong cp, wp; + ushort data; + int i, rc; + + if (info->flash_id == FLASH_UNKNOWN) { + return 4; + } + + wp = (addr & ~1); /* get lower word aligned address */ + + /* + * handle unaligned start byte + */ + + if (addr - wp) { + data = 0; + data = (data << 8) | *src++; + --cnt; + if ((rc = write_short(info, wp, data)) != 0) { + return (rc); + } + wp += 2; + } + + /* + * handle word aligned part + */ + + while (cnt >= 2) { + data = 0; + for (i=0; i<2; ++i) { + data = (data << 8) | *src++; + } + + if ((rc = write_short(info, wp, data)) != 0) { + return (rc); + } + wp += 2; + cnt -= 2; + } + + if (cnt == 0) { + return (0); + } + + /* + * handle unaligned tail bytes + */ + + data = 0; + for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) { + data = (data << 8) | *src++; + --cnt; + } + for (; i<2; ++i, ++cp) { + data = (data << 8) | (*(uchar *)cp); + } + + return (write_short(info, wp, data)); + +} + +/* + * Write 16 bit (short) to flash + */ + +static int write_short (flash_info_t *info, ulong dest, ushort data) +{ + vu_short *addr = (vu_short*)(info->start[0]); + ulong start; + int flag; + + /* Check if Flash is (sufficiently) erased */ + if ((*((vu_short *)dest) & data) != data) { + return (2); + } + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts(); + + if (!(info->flash_id & FLASH_VENDMASK)) { + return 4; + } + *addr = FLASH_CMD_ERASE_CONFIRM; + *addr = FLASH_CMD_WRITE; + + *((vu_short *)dest) = data; + + /* re-enable interrupts if necessary */ + if (flag) { + enable_interrupts(); + } + + /* data polling for D7 */ + start = get_timer (0); + + /* wait for error or finish */ + while(!(addr[0] & FLASH_STATUS_DONE)){ + if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { + addr[0] = FLASH_CMD_RESET; + return (1); + } + } + + *addr = FLASH_CMD_RESET; + return (0); +} + +/* + * Protects a flash sector + */ + +int flash_real_protect(flash_info_t *info, long sector, int prot) +{ + vu_short *addr = (vu_short*)(info->start[sector]); + ulong start; + + *addr = FLASH_CMD_CLEAR_STATUS; + *addr = FLASH_CMD_PROTECT; + + if(prot) { + *addr = FLASH_CMD_PROTECT_SET; + } else { + *addr = FLASH_CMD_PROTECT_CLEAR; + } + + /* wait for error or finish */ + start = get_timer (0); + while(!(addr[0] & FLASH_STATUS_DONE)){ + if (get_timer(start) > CFG_FLASH_ERASE_TOUT) { + printf("Flash protect timeout at address %lx\n", info->start[sector]); + addr[0] = FLASH_CMD_RESET; + return (1); + } + } + /* Set software protect flag */ + info->protect[sector] = prot; + *addr = FLASH_CMD_RESET; + return (0); +} diff --git a/board/cmi/u-boot.lds b/board/cmi/u-boot.lds new file mode 100644 index 0000000..9865171 --- /dev/null +++ b/board/cmi/u-boot.lds @@ -0,0 +1,131 @@ +/* + * (C) Copyright 2001 Wolfgang Denk, DENX Software Engineering, wd@denx.de + * (C) Copyright 2003 Martin Winistoerfer, martinwinistoerfer@gmx.ch + * + * 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 + */ + +OUTPUT_ARCH(powerpc) +SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib); +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + /* WARNING - the following is hand-optimized to fit within */ + /* the sector layout of our flash chips! XXX FIXME XXX */ + + cpu/mpc5xx/start.o (.text) + + *(.text) + *(.fixup) + *(.got1) + } + _etext = .; + PROVIDE (etext = .); + .rodata : + { + *(.rodata) + *(.rodata1) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x00FF) & 0xFFFFFF00; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2; + __fixup_entries = (. - _FIXUP_TABLE_)>>2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(256); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(256); + __init_end = .; + + __bss_start = .; + .bss : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + } + + _end = . ; + PROVIDE (end = .); + . = env_start; + .ppcenv : + { + common/environment.o (.ppcenv) + } + +} |