diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/lart/Makefile | 51 | ||||
| -rw-r--r-- | board/lart/config.mk | 23 | ||||
| -rw-r--r-- | board/lart/flash.c | 476 | ||||
| -rw-r--r-- | board/lart/flashasm.S | 177 | ||||
| -rw-r--r-- | board/lart/lart.c | 76 | ||||
| -rw-r--r-- | board/lart/lowlevel_init.S | 94 |
6 files changed, 0 insertions, 897 deletions
diff --git a/board/lart/Makefile b/board/lart/Makefile deleted file mode 100644 index 463bc0b..0000000 --- a/board/lart/Makefile +++ /dev/null @@ -1,51 +0,0 @@ -# -# (C) Copyright 2000-2006 -# 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 = $(obj)lib$(BOARD).o - -COBJS := lart.o flash.o -SOBJS := flashasm.o lowlevel_init.o - -SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) -OBJS := $(addprefix $(obj),$(COBJS)) -SOBJS := $(addprefix $(obj),$(SOBJS)) - -$(LIB): $(obj).depend $(OBJS) $(SOBJS) - $(call cmd_link_o_target, $(OBJS) $(SOBJS)) - -clean: - rm -f $(SOBJS) $(OBJS) - -distclean: clean - rm -f $(LIB) core *.bak $(obj).depend - -######################################################################### - -# defines $(obj).depend target -include $(SRCTREE)/rules.mk - -sinclude $(obj).depend - -######################################################################### diff --git a/board/lart/config.mk b/board/lart/config.mk deleted file mode 100644 index b6b5e4d..0000000 --- a/board/lart/config.mk +++ /dev/null @@ -1,23 +0,0 @@ -# -# LART board with SA1100 cpu -# -# see http://www.lart.tudelft.nl/ for more information on LART -# - -# -# LART has 4 banks of 8 MB DRAM -# -# c000'0000 -# c100'0000 -# c800'0000 -# c900'0000 -# -# Linux-Kernel is expected to be at c000'8000, entry c000'8000 -# -# we load ourself to c178'0000, the upper 1 MB of second bank -# -# download areas is c800'0000 -# - - -CONFIG_SYS_TEXT_BASE = 0xc1780000 diff --git a/board/lart/flash.c b/board/lart/flash.c deleted file mode 100644 index 408c884..0000000 --- a/board/lart/flash.c +++ /dev/null @@ -1,476 +0,0 @@ -/* - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.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 <common.h> - -ulong myflush(void); - - -#define FLASH_BANK_SIZE 0x800000 -#define MAIN_SECT_SIZE 0x20000 -#define PARAM_SECT_SIZE 0x4000 - -/* puzzle magic for lart - * data_*_flash are def'd in flashasm.S - */ - -extern u32 data_from_flash(u32); -extern u32 data_to_flash(u32); - -#define PUZZLE_FROM_FLASH(x) data_from_flash((x)) -#define PUZZLE_TO_FLASH(x) data_to_flash((x)) - -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; - - -#define CMD_READ_ARRAY 0x00FF00FF -#define CMD_IDENTIFY 0x00900090 -#define CMD_ERASE_SETUP 0x00200020 -#define CMD_ERASE_CONFIRM 0x00D000D0 -#define CMD_PROGRAM 0x00400040 -#define CMD_RESUME 0x00D000D0 -#define CMD_SUSPEND 0x00B000B0 -#define CMD_STATUS_READ 0x00700070 -#define CMD_STATUS_RESET 0x00500050 - -#define BIT_BUSY 0x00800080 -#define BIT_ERASE_SUSPEND 0x00400040 -#define BIT_ERASE_ERROR 0x00200020 -#define BIT_PROGRAM_ERROR 0x00100010 -#define BIT_VPP_RANGE_ERROR 0x00080008 -#define BIT_PROGRAM_SUSPEND 0x00040004 -#define BIT_PROTECT_ERROR 0x00020002 -#define BIT_UNDEFINED 0x00010001 - -#define BIT_SEQUENCE_ERROR 0x00300030 -#define BIT_TIMEOUT 0x80000000 - -/*----------------------------------------------------------------------- - */ - -ulong flash_init(void) -{ - int i, j; - ulong size = 0; - - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) - { - ulong flashbase = 0; - flash_info[i].flash_id = - (INTEL_MANUFACT & FLASH_VENDMASK) | - (INTEL_ID_28F160F3B & FLASH_TYPEMASK); - flash_info[i].size = FLASH_BANK_SIZE; - flash_info[i].sector_count = CONFIG_SYS_MAX_FLASH_SECT; - memset(flash_info[i].protect, 0, CONFIG_SYS_MAX_FLASH_SECT); - if (i == 0) - flashbase = PHYS_FLASH_1; - else - panic("configured too many flash banks!\n"); - for (j = 0; j < flash_info[i].sector_count; j++) - { - if (j <= 7) - { - flash_info[i].start[j] = flashbase + j * PARAM_SECT_SIZE; - } - else - { - flash_info[i].start[j] = flashbase + (j - 7)*MAIN_SECT_SIZE; - } - } - size += flash_info[i].size; - } - - /* Protect monitor and environment sectors - */ - flash_protect(FLAG_PROTECT_SET, - CONFIG_SYS_FLASH_BASE, - CONFIG_SYS_FLASH_BASE + 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]); - - return size; -} - -/*----------------------------------------------------------------------- - */ -void flash_print_info (flash_info_t *info) -{ - int i; - - switch (info->flash_id & FLASH_VENDMASK) - { - case (INTEL_MANUFACT & FLASH_VENDMASK): - printf("Intel: "); - break; - default: - printf("Unknown Vendor "); - break; - } - - switch (info->flash_id & FLASH_TYPEMASK) - { - case (INTEL_ID_28F160F3B & FLASH_TYPEMASK): - printf("2x 28F160F3B (16Mbit)\n"); - break; - default: - printf("Unknown Chip Type\n"); - goto Done; - break; - } - - printf(" Size: %ld MB in %d Sectors\n", - info->size >> 20, 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"); - -Done: - ; -} - -/*----------------------------------------------------------------------- - */ - -int flash_error (ulong code) -{ - /* Check bit patterns */ - /* SR.7=0 is busy, SR.7=1 is ready */ - /* all other flags indicate error on 1 */ - /* SR.0 is undefined */ - /* Timeout is our faked flag */ - - /* sequence is described in Intel 290644-005 document */ - - /* check Timeout */ - if (code & BIT_TIMEOUT) - { - printf ("Timeout\n"); - return ERR_TIMOUT; - } - - /* check Busy, SR.7 */ - if (~code & BIT_BUSY) - { - printf ("Busy\n"); - return ERR_PROG_ERROR; - } - - /* check Vpp low, SR.3 */ - if (code & BIT_VPP_RANGE_ERROR) - { - printf ("Vpp range error\n"); - return ERR_PROG_ERROR; - } - - /* check Device Protect Error, SR.1 */ - if (code & BIT_PROTECT_ERROR) - { - printf ("Device protect error\n"); - return ERR_PROG_ERROR; - } - - /* check Command Seq Error, SR.4 & SR.5 */ - if (code & BIT_SEQUENCE_ERROR) - { - printf ("Command seqence error\n"); - return ERR_PROG_ERROR; - } - - /* check Block Erase Error, SR.5 */ - if (code & BIT_ERASE_ERROR) - { - printf ("Block erase error\n"); - return ERR_PROG_ERROR; - } - - /* check Program Error, SR.4 */ - if (code & BIT_PROGRAM_ERROR) - { - printf ("Program error\n"); - return ERR_PROG_ERROR; - } - - /* check Block Erase Suspended, SR.6 */ - if (code & BIT_ERASE_SUSPEND) - { - printf ("Block erase suspended\n"); - return ERR_PROG_ERROR; - } - - /* check Program Suspended, SR.2 */ - if (code & BIT_PROGRAM_SUSPEND) - { - printf ("Program suspended\n"); - return ERR_PROG_ERROR; - } - - /* OK, no error */ - return ERR_OK; -} - -/*----------------------------------------------------------------------- - */ - -int flash_erase (flash_info_t *info, int s_first, int s_last) -{ - ulong result; - int iflag, cflag, prot, sect; - int rc = ERR_OK; - ulong start; - - /* first look for protection bits */ - - if (info->flash_id == FLASH_UNKNOWN) - return ERR_UNKNOWN_FLASH_TYPE; - - if ((s_first < 0) || (s_first > s_last)) { - return ERR_INVAL; - } - - if ((info->flash_id & FLASH_VENDMASK) != - (INTEL_MANUFACT & FLASH_VENDMASK)) { - return ERR_UNKNOWN_FLASH_VENDOR; - } - - prot = 0; - for (sect=s_first; sect<=s_last; ++sect) { - if (info->protect[sect]) { - prot++; - } - } - if (prot) - return ERR_PROTECTED; - - /* - * Disable interrupts which might cause a timeout - * here. Remember that our exception vectors are - * at address 0 in the flash, and we don't want a - * (ticker) exception to happen while the flash - * chip is in programming mode. - */ - cflag = icache_status(); - icache_disable(); - iflag = disable_interrupts(); - - /* Start erase on unprotected sectors */ - for (sect = s_first; sect<=s_last && !ctrlc(); sect++) - { - printf("Erasing sector %2d ... ", sect); - - /* arm simple, non interrupt dependent timer */ - start = get_timer(0); - - if (info->protect[sect] == 0) - { /* not protected */ - vu_long *addr = (vu_long *)(info->start[sect]); - - *addr = PUZZLE_TO_FLASH(CMD_STATUS_RESET); - *addr = PUZZLE_TO_FLASH(CMD_ERASE_SETUP); - *addr = PUZZLE_TO_FLASH(CMD_ERASE_CONFIRM); - - /* wait until flash is ready */ - do - { - /* check timeout */ - if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT) - { - *addr = PUZZLE_TO_FLASH(CMD_SUSPEND); - result = BIT_TIMEOUT; - break; - } - - result = PUZZLE_FROM_FLASH(*addr); - } while (~result & BIT_BUSY); - - *addr = PUZZLE_TO_FLASH(CMD_READ_ARRAY); - - if ((rc = flash_error(result)) != ERR_OK) - goto outahere; - - printf("ok.\n"); - } - else /* it was protected */ - { - printf("protected!\n"); - } - } - - if (ctrlc()) - printf("User Interrupt!\n"); - -outahere: - /* allow flash to settle - wait 10 ms */ - udelay_masked(10000); - - if (iflag) - enable_interrupts(); - - if (cflag) - icache_enable(); - - return rc; -} - -/*----------------------------------------------------------------------- - * Copy memory to flash - */ - -static int write_word (flash_info_t *info, ulong dest, ulong data) -{ - vu_long *addr = (vu_long *)dest; - ulong result; - int rc = ERR_OK; - int cflag, iflag; - ulong start; - - /* Check if Flash is (sufficiently) erased - */ - result = PUZZLE_FROM_FLASH(*addr); - if ((result & data) != data) - return ERR_NOT_ERASED; - - /* - * Disable interrupts which might cause a timeout - * here. Remember that our exception vectors are - * at address 0 in the flash, and we don't want a - * (ticker) exception to happen while the flash - * chip is in programming mode. - */ - cflag = icache_status(); - icache_disable(); - iflag = disable_interrupts(); - - *addr = PUZZLE_TO_FLASH(CMD_STATUS_RESET); - *addr = PUZZLE_TO_FLASH(CMD_PROGRAM); - *addr = data; - - /* arm simple, non interrupt dependent timer */ - start = get_timer(0); - - /* wait until flash is ready */ - do - { - /* check timeout */ - if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT) - { - *addr = PUZZLE_TO_FLASH(CMD_SUSPEND); - result = BIT_TIMEOUT; - break; - } - - result = PUZZLE_FROM_FLASH(*addr); - } while (~result & BIT_BUSY); - - *addr = PUZZLE_TO_FLASH(CMD_READ_ARRAY); - - rc = flash_error(result); - - if (iflag) - enable_interrupts(); - - if (cflag) - icache_enable(); - - return rc; -} - -/*----------------------------------------------------------------------- - * Copy memory to flash. - */ - -int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) -{ - ulong cp, wp, data; - int l; - int i, 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 << 24); - } - for (; i<4 && cnt>0; ++i) { - data = (data >> 8) | (*src++ << 24); - --cnt; - ++cp; - } - for (; cnt==0 && i<4; ++i, ++cp) { - data = (data >> 8) | (*(uchar *)cp << 24); - } - - if ((rc = write_word(info, wp, data)) != 0) { - return (rc); - } - wp += 4; - } - - /* - * handle word aligned part - */ - while (cnt >= 4) { - data = *((vu_long*)src); - if ((rc = write_word(info, wp, data)) != 0) { - return (rc); - } - src += 4; - wp += 4; - cnt -= 4; - } - - if (cnt == 0) { - return ERR_OK; - } - - /* - * handle unaligned tail bytes - */ - data = 0; - for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) { - data = (data >> 8) | (*src++ << 24); - --cnt; - } - for (; i<4; ++i, ++cp) { - data = (data >> 8) | (*(uchar *)cp << 24); - } - - return write_word(info, wp, data); -} diff --git a/board/lart/flashasm.S b/board/lart/flashasm.S deleted file mode 100644 index 9021972..0000000 --- a/board/lart/flashasm.S +++ /dev/null @@ -1,177 +0,0 @@ -/* - * flashasm.S: flash magic for LART - * - * Copyright (C) 1999 2000 2001 Jan-Derk bakker (J.D.Bakker@its.tudelft.nl) - * - * 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 - * - */ - -.text - - -.globl data_to_flash -.globl data_from_flash - /* Subroutine that takes data in r0 and formats it so it will be in */ - /* the correct order for the internal flash */ - /* used for LART only */ -data_to_flash: - mov r1, #0x0 - - tst r0, #0x00000001 - orrne r1, r1, #0x00001000 - tst r0, #0x00000002 - orrne r1, r1, #0x00004000 - tst r0, #0x00000004 - orrne r1, r1, #0x00000800 - tst r0, #0x00000008 - orrne r1, r1, #0x00000200 - tst r0, #0x00000010 - orrne r1, r1, #0x00000001 - tst r0, #0x00000020 - orrne r1, r1, #0x00000004 - tst r0, #0x00000040 - orrne r1, r1, #0x00000080 - tst r0, #0x00000080 - orrne r1, r1, #0x00000020 - - tst r0, #0x00000100 - orrne r1, r1, #0x00002000 - tst r0, #0x00000200 - orrne r1, r1, #0x00008000 - tst r0, #0x00000400 - orrne r1, r1, #0x00000400 - tst r0, #0x00000800 - orrne r1, r1, #0x00000100 - tst r0, #0x00001000 - orrne r1, r1, #0x00000002 - tst r0, #0x00002000 - orrne r1, r1, #0x00000008 - tst r0, #0x00004000 - orrne r1, r1, #0x00000040 - tst r0, #0x00008000 - orrne r1, r1, #0x00000010 - - tst r0, #0x00010000 - orrne r1, r1, #0x00100000 - tst r0, #0x00020000 - orrne r1, r1, #0x00400000 - tst r0, #0x00040000 - orrne r1, r1, #0x00080000 - tst r0, #0x00080000 - orrne r1, r1, #0x00020000 - tst r0, #0x00100000 - orrne r1, r1, #0x01000000 - tst r0, #0x00200000 - orrne r1, r1, #0x04000000 - tst r0, #0x00400000 - orrne r1, r1, #0x80000000 - tst r0, #0x00800000 - orrne r1, r1, #0x20000000 - - tst r0, #0x01000000 - orrne r1, r1, #0x00200000 - tst r0, #0x02000000 - orrne r1, r1, #0x00800000 - tst r0, #0x04000000 - orrne r1, r1, #0x00040000 - tst r0, #0x08000000 - orrne r1, r1, #0x00010000 - tst r0, #0x10000000 - orrne r1, r1, #0x02000000 - tst r0, #0x20000000 - orrne r1, r1, #0x08000000 - tst r0, #0x40000000 - orrne r1, r1, #0x40000000 - tst r0, #0x80000000 - orrne r1, r1, #0x10000000 - - mov r0, r1 - mov pc, lr - - /* Takes data received from the flash, and unshuffles it. */ -data_from_flash: - mov r1, #0x00 - - tst r0, #0x00000001 - orrne r1, r1, #0x00000010 - tst r0, #0x00000002 - orrne r1, r1, #0x00001000 - tst r0, #0x00000004 - orrne r1, r1, #0x00000020 - tst r0, #0x00000008 - orrne r1, r1, #0x00002000 - tst r0, #0x00000010 - orrne r1, r1, #0x00008000 - tst r0, #0x00000020 - orrne r1, r1, #0x00000080 - tst r0, #0x00000040 - orrne r1, r1, #0x00004000 - tst r0, #0x00000080 - orrne r1, r1, #0x00000040 - - tst r0, #0x00000100 - orrne r1, r1, #0x00000800 - tst r0, #0x00000200 - orrne r1, r1, #0x00000008 - tst r0, #0x00000400 - orrne r1, r1, #0x00000400 - tst r0, #0x00000800 - orrne r1, r1, #0x00000004 - tst r0, #0x00001000 - orrne r1, r1, #0x00000001 - tst r0, #0x00002000 - orrne r1, r1, #0x00000100 - tst r0, #0x00004000 - orrne r1, r1, #0x00000002 - tst r0, #0x00008000 - orrne r1, r1, #0x00000200 - - tst r0, #0x00010000 - orrne r1, r1, #0x08000000 - tst r0, #0x00020000 - orrne r1, r1, #0x00080000 - tst r0, #0x00040000 - orrne r1, r1, #0x04000000 - tst r0, #0x00080000 - orrne r1, r1, #0x00040000 - tst r0, #0x00100000 - orrne r1, r1, #0x00010000 - tst r0, #0x00200000 - orrne r1, r1, #0x01000000 - tst r0, #0x00400000 - orrne r1, r1, #0x00020000 - tst r0, #0x00800000 - orrne r1, r1, #0x02000000 - - tst r0, #0x01000000 - orrne r1, r1, #0x00100000 - tst r0, #0x02000000 - orrne r1, r1, #0x10000000 - tst r0, #0x04000000 - orrne r1, r1, #0x00200000 - tst r0, #0x08000000 - orrne r1, r1, #0x20000000 - tst r0, #0x10000000 - orrne r1, r1, #0x80000000 - tst r0, #0x20000000 - orrne r1, r1, #0x00800000 - tst r0, #0x40000000 - orrne r1, r1, #0x40000000 - tst r0, #0x80000000 - orrne r1, r1, #0x00400000 - - mov r0, r1 - mov pc, lr diff --git a/board/lart/lart.c b/board/lart/lart.c deleted file mode 100644 index a0b459f..0000000 --- a/board/lart/lart.c +++ /dev/null @@ -1,76 +0,0 @@ -/* - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.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 <common.h> -#include <netdev.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* ------------------------------------------------------------------------- */ - - -/* - * Miscelaneous platform dependent initialisations - */ - -int board_init (void) -{ - /* memory and cpu-speed are setup before relocation */ - /* so we do _nothing_ here */ - - /* arch number of LART-Board */ - gd->bd->bi_arch_number = MACH_TYPE_LART; - - /* adress of boot parameters */ - gd->bd->bi_boot_params = 0xc0000100; - - return 0; -} - -int dram_init (void) -{ - bd_t *bd = gd->bd; - - bd->bi_dram[0].start = PHYS_SDRAM_1; - bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; - bd->bi_dram[1].start = PHYS_SDRAM_2; - bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE; - bd->bi_dram[2].start = PHYS_SDRAM_3; - bd->bi_dram[2].size = PHYS_SDRAM_3_SIZE; - bd->bi_dram[3].start = PHYS_SDRAM_4; - bd->bi_dram[3].size = PHYS_SDRAM_4_SIZE; - - return (0); -} - -#ifdef CONFIG_CMD_NET -int board_eth_init(bd_t *bis) -{ - int rc = 0; -#ifdef CONFIG_CS8900 - rc = cs8900_initialize(0, CONFIG_CS8900_BASE); -#endif - return rc; -} -#endif diff --git a/board/lart/lowlevel_init.S b/board/lart/lowlevel_init.S deleted file mode 100644 index db9fd63..0000000 --- a/board/lart/lowlevel_init.S +++ /dev/null @@ -1,94 +0,0 @@ -/* - * Memory Setup stuff - taken from blob memsetup.S - * - * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) and - * Jan-Derk Bakker (J.D.Bakker@its.tudelft.nl) - * - * 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 <version.h> - - -/* some parameters for the board */ - -MEM_BASE: .long 0xa0000000 -MEM_START: .long 0xc0000000 - -#define MDCNFG 0x00 -#define MDCAS0 0x04 -#define MDCAS1 0x08 -#define MDCAS2 0x0c -#define MSC0 0x10 -#define MSC1 0x14 -#define MECR 0x18 - -mdcas0: .long 0xc71c703f -mdcas1: .long 0xffc71c71 -mdcas2: .long 0xffffffff -/* mdcnfg: .long 0x0bb2bcbf */ -mdcnfg: .long 0x0334b22f @ alt -/* mcs0: .long 0xfff8fff8 */ -msc0: .long 0xad8c4888 @ alt -mecr: .long 0x00060006 -/* mecr: .long 0x994a994a @ alt */ - -/* setting up the memory */ - -.globl lowlevel_init -lowlevel_init: - ldr r0, MEM_BASE - - /* Setup the flash memory */ - ldr r1, msc0 - str r1, [r0, #MSC0] - - /* Set up the DRAM */ - - /* MDCAS0 */ - ldr r1, mdcas0 - str r1, [r0, #MDCAS0] - - /* MDCAS1 */ - ldr r1, mdcas1 - str r1, [r0, #MDCAS1] - - /* MDCAS2 */ - ldr r1, mdcas2 - str r1, [r0, #MDCAS2] - - /* MDCNFG */ - ldr r1, mdcnfg - str r1, [r0, #MDCNFG] - - /* Set up PCMCIA space */ - ldr r1, mecr - str r1, [r0, #MECR] - - /* Load something to activate bank */ - ldr r1, MEM_START - -.rept 8 - ldr r0, [r1] -.endr - - /* everything is fine now */ - mov pc, lr |