diff options
Diffstat (limited to 'board/shannon')
| -rw-r--r-- | board/shannon/Makefile | 51 | ||||
| -rw-r--r-- | board/shannon/config.mk | 23 | ||||
| -rw-r--r-- | board/shannon/flash.c | 475 | ||||
| -rw-r--r-- | board/shannon/inferno.header | bin | 128 -> 0 bytes | |||
| -rw-r--r-- | board/shannon/lowlevel_init.S | 92 | ||||
| -rw-r--r-- | board/shannon/shannon.c | 99 |
6 files changed, 0 insertions, 740 deletions
diff --git a/board/shannon/Makefile b/board/shannon/Makefile deleted file mode 100644 index 23ac987..0000000 --- a/board/shannon/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 := shannon.o flash.o -SOBJS := 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/shannon/config.mk b/board/shannon/config.mk deleted file mode 100644 index 6afa2d3..0000000 --- a/board/shannon/config.mk +++ /dev/null @@ -1,23 +0,0 @@ -# -# LART board with SA1100 cpu -# -# see http://www.lart.tudelft.nl/ for more information on LART -# - -# -# Tuxscreen has 4 banks of 4 MB DRAM each -# -# c000'0000 -# c800'0000 -# d000'0000 -# d800'0000 -# -# Linux-Kernel is expected to be at c000'8000, entry c000'8000 -# -# we load ourself to d838'0000, the upper 1 MB of the last (4th) bank -# -# download areas is c800'0000 -# - - -CONFIG_SYS_TEXT_BASE = 0xd8380000 diff --git a/board/shannon/flash.c b/board/shannon/flash.c deleted file mode 100644 index 179ec5f..0000000 --- a/board/shannon/flash.c +++ /dev/null @@ -1,475 +0,0 @@ -/* - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Alex Zuepke <azu@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 0x400000 /* 4 MB */ -#define MAIN_SECT_SIZE 0x20000 /* 128 KB */ - -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; - - -#define CMD_READ_ARRAY 0x00F000F0 -#define CMD_UNLOCK1 0x00AA00AA -#define CMD_UNLOCK2 0x00550055 -#define CMD_ERASE_SETUP 0x00800080 -#define CMD_ERASE_CONFIRM 0x00300030 -#define CMD_PROGRAM 0x00A000A0 -#define CMD_UNLOCK_BYPASS 0x00200020 - -#define MEM_FLASH_ADDR1 (*(volatile u32 *)(CONFIG_SYS_FLASH_BASE + (0x00000555 << 2))) -#define MEM_FLASH_ADDR2 (*(volatile u32 *)(CONFIG_SYS_FLASH_BASE + (0x000002AA << 2))) - -#define BIT_ERASE_DONE 0x00800080 -#define BIT_RDY_MASK 0x00800080 -#define BIT_PROGRAM_ERROR 0x00200020 -#define BIT_TIMEOUT 0x80000000 /* our flag */ - -#define READY 1 -#define ERR 2 -#define TMO 4 - -/*----------------------------------------------------------------------- - */ - -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 = - (AMD_MANUFACT & FLASH_VENDMASK) | - (AMD_ID_LV160B & 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 <= 3) - { - /* 1st one is 32 KB */ - if (j == 0) - { - flash_info[i].start[j] = flashbase + 0; - } - - /* 2nd and 3rd are both 16 KB */ - if ((j == 1) || (j == 2)) - { - flash_info[i].start[j] = flashbase + 0x8000 + (j-1)*0x4000; - } - - /* 4th 64 KB */ - if (j == 3) - { - flash_info[i].start[j] = flashbase + 0x10000; - } - } - else - { - flash_info[i].start[j] = flashbase + (j - 3)*MAIN_SECT_SIZE; - } - } - size += flash_info[i].size; - } - - /* - * Protect monitor and environment sectors - * Inferno is complicated, it's hardware locked - */ -#ifdef CONFIG_INFERNO - /* first one, 0x00000 to 0x07fff */ - flash_protect(FLAG_PROTECT_SET, - CONFIG_SYS_FLASH_BASE + 0x00000, - CONFIG_SYS_FLASH_BASE + 0x08000 - 1, - &flash_info[0]); - - /* third to 10th, 0x0c000 - 0xdffff */ - flash_protect(FLAG_PROTECT_SET, - CONFIG_SYS_FLASH_BASE + 0x0c000, - CONFIG_SYS_FLASH_BASE + 0xe0000 - 1, - &flash_info[0]); -#else - 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]); -#endif - return size; -} - -/*----------------------------------------------------------------------- - */ -void flash_print_info (flash_info_t *info) -{ - int i; - - switch (info->flash_id & FLASH_VENDMASK) - { - case (AMD_MANUFACT & FLASH_VENDMASK): - printf("AMD: "); - break; - default: - printf("Unknown Vendor "); - break; - } - - switch (info->flash_id & FLASH_TYPEMASK) - { - case (AMD_ID_LV160B & FLASH_TYPEMASK): - printf("2x Amd29F160BB (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_erase (flash_info_t *info, int s_first, int s_last) -{ - ulong result; - int iflag, cflag, prot, sect; - int rc = ERR_OK; - int chip1, chip2; - 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) != - (AMD_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]); - - MEM_FLASH_ADDR1 = CMD_UNLOCK1; - MEM_FLASH_ADDR2 = CMD_UNLOCK2; - MEM_FLASH_ADDR1 = CMD_ERASE_SETUP; - - MEM_FLASH_ADDR1 = CMD_UNLOCK1; - MEM_FLASH_ADDR2 = CMD_UNLOCK2; - *addr = CMD_ERASE_CONFIRM; - - /* wait until flash is ready */ - chip1 = chip2 = 0; - - do - { - result = *addr; - - /* check timeout */ - if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT) - { - MEM_FLASH_ADDR1 = CMD_READ_ARRAY; - chip1 = TMO; - break; - } - - if (!chip1 && (result & 0xFFFF) & BIT_ERASE_DONE) - chip1 = READY; - - if (!chip1 && (result & 0xFFFF) & BIT_PROGRAM_ERROR) - chip1 = ERR; - - if (!chip2 && (result >> 16) & BIT_ERASE_DONE) - chip2 = READY; - - if (!chip2 && (result >> 16) & BIT_PROGRAM_ERROR) - chip2 = ERR; - - } while (!chip1 || !chip2); - - MEM_FLASH_ADDR1 = CMD_READ_ARRAY; - - if (chip1 == ERR || chip2 == ERR) - { - rc = ERR_PROG_ERROR; - goto outahere; - } - if (chip1 == TMO) - { - rc = ERR_TIMOUT; - 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; - int chip1, chip2; - ulong start; - - /* - * Check if Flash is (sufficiently) erased - */ - result = *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(); - - MEM_FLASH_ADDR1 = CMD_UNLOCK1; - MEM_FLASH_ADDR2 = CMD_UNLOCK2; - MEM_FLASH_ADDR1 = CMD_UNLOCK_BYPASS; - *addr = CMD_PROGRAM; - *addr = data; - - /* arm simple, non interrupt dependent timer */ - start = get_timer(0); - - /* wait until flash is ready */ - chip1 = chip2 = 0; - do - { - result = *addr; - - /* check timeout */ - if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT) - { - chip1 = ERR | TMO; - break; - } - if (!chip1 && ((result & 0x80) == (data & 0x80))) - chip1 = READY; - - if (!chip1 && ((result & 0xFFFF) & BIT_PROGRAM_ERROR)) - { - result = *addr; - - if ((result & 0x80) == (data & 0x80)) - chip1 = READY; - else - chip1 = ERR; - } - - if (!chip2 && ((result & (0x80 << 16)) == (data & (0x80 << 16)))) - chip2 = READY; - - if (!chip2 && ((result >> 16) & BIT_PROGRAM_ERROR)) - { - result = *addr; - - if ((result & (0x80 << 16)) == (data & (0x80 << 16))) - chip2 = READY; - else - chip2 = ERR; - } - - } while (!chip1 || !chip2); - - *addr = CMD_READ_ARRAY; - - if (chip1 == ERR || chip2 == ERR || *addr != data) - rc = ERR_PROG_ERROR; - - 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/shannon/inferno.header b/board/shannon/inferno.header Binary files differdeleted file mode 100644 index 28ee85a..0000000 --- a/board/shannon/inferno.header +++ /dev/null diff --git a/board/shannon/lowlevel_init.S b/board/shannon/lowlevel_init.S deleted file mode 100644 index 0655c42..0000000 --- a/board/shannon/lowlevel_init.S +++ /dev/null @@ -1,92 +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 @ cccccccf -mdcas1: .long 0xffc71c71 @ fffffffc -mdcas2: .long 0xffffffff @ ffffffff -mdcnfg: .long 0x0334b21f @ 9326991f -msc0: .long 0xfff84458 @ 42304230 -msc1: .long 0xffffffff @ 20182018 -mecr: .long 0x7fff7fff @ 01000000 - -/* 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 diff --git a/board/shannon/shannon.c b/board/shannon/shannon.c deleted file mode 100644 index 8cd1fc3..0000000 --- a/board/shannon/shannon.c +++ /dev/null @@ -1,99 +0,0 @@ -/* - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Alex Zuepke <azu@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> - -DECLARE_GLOBAL_DATA_PTR; - -/* - * Miscelaneous platform dependent initialisations - */ - -int board_init (void) -{ - /* memory and cpu-speed are setup before relocation */ - /* but if we use InfernoLoader, we must do some inits here */ - -#ifdef CONFIG_INFERNO - { - unsigned long temp; - __asm__ __volatile__(/* disable MMU, enable icache */ - "mrc p15, 0, %0, c1, c0\n" - "bic %0, %0, #0x00002000\n" - "bic %0, %0, #0x0000000f\n" - "orr %0, %0, #0x00001000\n" - "orr %0, %0, #0x00000002\n" - "mcr p15, 0, %0, c1, c0\n" - /* flush caches */ - "mov %0, #0\n" - "mcr p15, 0, %0, c7, c7, 0\n" - "mcr p15, 0, %0, c8, c7, 0\n" - : "=r" (temp) - : - : "memory"); - /* setup PCMCIA timing */ - temp = 0xa0000018; - *(unsigned long *)temp = 0x00060006; - - } -#endif /* CONFIG_INFERNO */ - - /* arch number for shannon */ - gd->bd->bi_arch_number = MACH_TYPE_SHANNON; - - /* adress of boot parameters */ - gd->bd->bi_boot_params = 0xc0000100; - - return 0; -} - -int dram_init (void) -{ -#if defined(PHYS_SDRAM_1) || defined(PHYS_SDRAM_2) || \ - defined(PHYS_SDRAM_3) || defined(PHYS_SDRAM_4) - bd_t *bd = gd->bd; -#endif - -#ifdef PHYS_SDRAM_1 - bd->bi_dram[0].start = PHYS_SDRAM_1; - bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; -#endif - -#ifdef PHYS_SDRAM_2 - bd->bi_dram[1].start = PHYS_SDRAM_2; - bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE; -#endif - -#ifdef PHYS_SDRAM_3 - bd->bi_dram[2].start = PHYS_SDRAM_3; - bd->bi_dram[2].size = PHYS_SDRAM_3_SIZE; -#endif - -#ifdef PHYS_SDRAM_4 - bd->bi_dram[3].start = PHYS_SDRAM_4; - bd->bi_dram[3].size = PHYS_SDRAM_4_SIZE; -#endif - - return (0); -} |