diff options
Diffstat (limited to 'board/wepep250')
| -rw-r--r-- | board/wepep250/Makefile | 51 | ||||
| -rw-r--r-- | board/wepep250/config.mk | 11 | ||||
| -rw-r--r-- | board/wepep250/flash.c | 324 | ||||
| -rw-r--r-- | board/wepep250/intel.h | 99 | ||||
| -rw-r--r-- | board/wepep250/lowlevel_init.S | 145 | ||||
| -rw-r--r-- | board/wepep250/wepep250.c | 67 |
6 files changed, 0 insertions, 697 deletions
diff --git a/board/wepep250/Makefile b/board/wepep250/Makefile deleted file mode 100644 index 0669b0e..0000000 --- a/board/wepep250/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).a - -COBJS := wepep250.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) - $(AR) $(ARFLAGS) $@ $(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/wepep250/config.mk b/board/wepep250/config.mk deleted file mode 100644 index 60cbc24..0000000 --- a/board/wepep250/config.mk +++ /dev/null @@ -1,11 +0,0 @@ -# -# This is config used for compilation of WEP EP250 sources -# -# You might change location of U-Boot in memory by setting right CONFIG_SYS_TEXT_BASE. -# This allows for example having one copy located at the end of ram and stored -# in flash device and later on while developing use other location to test -# the code in RAM device only. -# - -CONFIG_SYS_TEXT_BASE = 0xa1fe0000 -#CONFIG_SYS_TEXT_BASE = 0xa1001000 diff --git a/board/wepep250/flash.c b/board/wepep250/flash.c deleted file mode 100644 index c6e9171..0000000 --- a/board/wepep250/flash.c +++ /dev/null @@ -1,324 +0,0 @@ -/* - * Copyright (C) 2003 ETC s.r.o. - * - * This code was inspired by Marius Groeger and Kyle Harris code - * available in other board ports for U-Boot - * - * 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 - * - * Written by Peter Figuli <peposh@etc.sk>, 2003. - * - */ - -#include <common.h> -#include "intel.h" - - -/* - * This code should handle CFI FLASH memory device. This code is very - * minimalistic approach without many essential error handling code as well. - * Because U-Boot actually is missing smart handling of FLASH device, - * we just set flash_id to anything else to FLASH_UNKNOW, so common code - * can call us without any restrictions. - * TODO: Add CFI Query, to be able to determine FLASH device. - * TODO: Add error handling code - * NOTE: This code was tested with BUS_WIDTH 4 and ITERLEAVE 2 only, but - * hopefully may work with other configurations. - */ - -#if ( WEP_FLASH_BUS_WIDTH == 1 ) -# define FLASH_BUS vu_char -# define FLASH_BUS_RET u_char -# if ( WEP_FLASH_INTERLEAVE == 1 ) -# define FLASH_CMD( x ) x -# else -# error "With 8bit bus only one chip is allowed" -# endif - - -#elif ( WEP_FLASH_BUS_WIDTH == 2 ) -# define FLASH_BUS vu_short -# define FLASH_BUS_RET u_short -# if ( WEP_FLASH_INTERLEAVE == 1 ) -# define FLASH_CMD( x ) x -# elif ( WEP_FLASH_INTERLEAVE == 2 ) -# define FLASH_CMD( x ) (( x << 8 )| x ) -# else -# error "With 16bit bus only 1 or 2 chip(s) are allowed" -# endif - - -#elif ( WEP_FLASH_BUS_WIDTH == 4 ) -# define FLASH_BUS vu_long -# define FLASH_BUS_RET u_long -# if ( WEP_FLASH_INTERLEAVE == 1 ) -# define FLASH_CMD( x ) x -# elif ( WEP_FLASH_INTERLEAVE == 2 ) -# define FLASH_CMD( x ) (( x << 16 )| x ) -# elif ( WEP_FLASH_INTERLEAVE == 4 ) -# define FLASH_CMD( x ) (( x << 24 )|( x << 16 ) ( x << 8 )| x ) -# else -# error "With 32bit bus only 1,2 or 4 chip(s) are allowed" -# endif - -#else -# error "Flash bus width might be 1,2,4 for 8,16,32 bit configuration" -#endif - - -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; - -static FLASH_BUS_RET flash_status_reg (void) -{ - - FLASH_BUS *addr = (FLASH_BUS *) 0; - - *addr = FLASH_CMD (CFI_INTEL_CMD_READ_STATUS_REGISTER); - - return *addr; -} - -static int flash_ready (ulong timeout) -{ - int ok = 1; - - reset_timer_masked (); - while ((flash_status_reg () & FLASH_CMD (CFI_INTEL_SR_READY)) != - FLASH_CMD (CFI_INTEL_SR_READY)) { - if (get_timer_masked () > timeout && timeout != 0) { - ok = 0; - break; - } - } - return ok; -} - -#if ( CONFIG_SYS_MAX_FLASH_BANKS != 1 ) -# error "WEP platform has only one flash bank!" -#endif - - -ulong flash_init (void) -{ - int i; - FLASH_BUS address = WEP_FLASH_BASE; - - flash_info[0].size = WEP_FLASH_BANK_SIZE; - flash_info[0].sector_count = CONFIG_SYS_MAX_FLASH_SECT; - flash_info[0].flash_id = INTEL_MANUFACT; - memset (flash_info[0].protect, 0, CONFIG_SYS_MAX_FLASH_SECT); - - for (i = 0; i < CONFIG_SYS_MAX_FLASH_SECT; i++) { - flash_info[0].start[i] = address; -#ifdef WEP_FLASH_UNLOCK - /* Some devices are hw locked after start. */ - *((FLASH_BUS *) address) = FLASH_CMD (CFI_INTEL_CMD_LOCK_SETUP); - *((FLASH_BUS *) address) = FLASH_CMD (CFI_INTEL_CMD_UNLOCK_BLOCK); - flash_ready (0); - *((FLASH_BUS *) address) = FLASH_CMD (CFI_INTEL_CMD_READ_ARRAY); -#endif - address += WEP_FLASH_SECT_SIZE; - } - - 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 WEP_FLASH_BANK_SIZE; -} - -void flash_print_info (flash_info_t * info) -{ - int i; - - printf (" Intel vendor\n"); - 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)) { - printf ("\n"); - } - - printf (" %08lX%s", info->start[i], - info->protect[i] ? " (RO)" : " "); - } - printf ("\n"); -} - - -int flash_erase (flash_info_t * info, int s_first, int s_last) -{ - int flag, non_protected = 0, sector; - int rc = ERR_OK; - - FLASH_BUS *address; - - for (sector = s_first; sector <= s_last; sector++) { - if (!info->protect[sector]) { - non_protected++; - } - } - - if (!non_protected) { - 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. - */ - flag = disable_interrupts (); - - - /* Start erase on unprotected sectors */ - for (sector = s_first; sector <= s_last && !ctrlc (); sector++) { - if (info->protect[sector]) { - printf ("Protected sector %2d skipping...\n", sector); - continue; - } else { - printf ("Erasing sector %2d ... ", sector); - } - - address = (FLASH_BUS *) (info->start[sector]); - - *address = FLASH_CMD (CFI_INTEL_CMD_BLOCK_ERASE); - *address = FLASH_CMD (CFI_INTEL_CMD_CONFIRM); - if (flash_ready (CONFIG_SYS_FLASH_ERASE_TOUT)) { - *address = FLASH_CMD (CFI_INTEL_CMD_CLEAR_STATUS_REGISTER); - printf ("ok.\n"); - } else { - *address = FLASH_CMD (CFI_INTEL_CMD_SUSPEND); - rc = ERR_TIMOUT; - printf ("timeout! Aborting...\n"); - break; - } - *address = FLASH_CMD (CFI_INTEL_CMD_READ_ARRAY); - } - if (ctrlc ()) - printf ("User Interrupt!\n"); - - /* allow flash to settle - wait 10 ms */ - udelay_masked (10000); - if (flag) { - enable_interrupts (); - } - - return rc; -} - -static int write_data (flash_info_t * info, ulong dest, FLASH_BUS data) -{ - FLASH_BUS *address = (FLASH_BUS *) dest; - int rc = ERR_OK; - int flag; - - /* Check if Flash is (sufficiently) erased */ - if ((*address & 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. - */ - - flag = disable_interrupts (); - - *address = FLASH_CMD (CFI_INTEL_CMD_CLEAR_STATUS_REGISTER); - *address = FLASH_CMD (CFI_INTEL_CMD_PROGRAM1); - *address = data; - - if (!flash_ready (CONFIG_SYS_FLASH_WRITE_TOUT)) { - *address = FLASH_CMD (CFI_INTEL_CMD_SUSPEND); - rc = ERR_TIMOUT; - printf ("timeout! Aborting...\n"); - } - - *address = FLASH_CMD (CFI_INTEL_CMD_READ_ARRAY); - if (flag) { - enable_interrupts (); - } - - return rc; -} - -int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) -{ - ulong read_addr, write_addr; - FLASH_BUS data; - int i, result = ERR_OK; - - - read_addr = addr & ~(sizeof (FLASH_BUS) - 1); - write_addr = read_addr; - if (read_addr != addr) { - data = 0; - for (i = 0; i < sizeof (FLASH_BUS); i++) { - if (read_addr < addr || cnt == 0) { - data |= *((uchar *) read_addr) << i * 8; - } else { - data |= (*src++) << i * 8; - cnt--; - } - read_addr++; - } - if ((result = write_data (info, write_addr, data)) != ERR_OK) { - return result; - } - write_addr += sizeof (FLASH_BUS); - } - for (; cnt >= sizeof (FLASH_BUS); cnt -= sizeof (FLASH_BUS)) { - if ((result = write_data (info, write_addr, - *((FLASH_BUS *) src))) != ERR_OK) { - return result; - } - write_addr += sizeof (FLASH_BUS); - src += sizeof (FLASH_BUS); - } - if (cnt > 0) { - read_addr = write_addr; - data = 0; - for (i = 0; i < sizeof (FLASH_BUS); i++) { - if (cnt > 0) { - data |= (*src++) << i * 8; - cnt--; - } else { - data |= *((uchar *) read_addr) << i * 8; - } - read_addr++; - } - if ((result = write_data (info, write_addr, data)) != 0) { - return result; - } - } - return ERR_OK; -} diff --git a/board/wepep250/intel.h b/board/wepep250/intel.h deleted file mode 100644 index 77498b6..0000000 --- a/board/wepep250/intel.h +++ /dev/null @@ -1,99 +0,0 @@ -/* - * Copyright (C) 2002 ETC s.r.o. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the ETC s.r.o. nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * Written by Marcel Telka <marcel@telka.sk>, 2002. - * - * Documentation: - * [1] Intel Corporation, "3 Volt Intel Strata Flash Memory 28F128J3A, 28F640J3A, - * 28F320J3A (x8/x16)", April 2002, Order Number: 290667-011 - * [2] Intel Corporation, "3 Volt Synchronous Intel Strata Flash Memory 28F640K3, 28F640K18, - * 28F128K3, 28F128K18, 28F256K3, 28F256K18 (x16)", June 2002, Order Number: 290737-005 - * - * This file is taken from OpenWinCE project hosted by SourceForge.net - * - */ - -#ifndef FLASH_INTEL_H -#define FLASH_INTEL_H - -#include <common.h> - -/* Intel CFI commands - see Table 4. in [1] and Table 3. in [2] */ - -#define CFI_INTEL_CMD_READ_ARRAY 0xFF /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_CMD_READ_IDENTIFIER 0x90 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_CMD_READ_QUERY 0x98 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_CMD_READ_STATUS_REGISTER 0x70 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_CMD_CLEAR_STATUS_REGISTER 0x50 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_CMD_PROGRAM1 0x40 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_CMD_PROGRAM2 0x10 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_CMD_WRITE_TO_BUFFER 0xE8 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_CMD_CONFIRM 0xD0 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_CMD_BLOCK_ERASE 0x20 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_CMD_SUSPEND 0xB0 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_CMD_RESUME 0xD0 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_CMD_LOCK_SETUP 0x60 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_CMD_LOCK_BLOCK 0x01 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_CMD_UNLOCK_BLOCK 0xD0 /* 28FxxxJ3A - unlocks all blocks, 28FFxxxK3, 28FxxxK18 */ -#define CFI_INTEL_CMD_LOCK_DOWN_BLOCK 0x2F /* 28FxxxK3, 28FxxxK18 */ - -/* Intel CFI Status Register bits - see Table 6. in [1] and Table 7. in [2] */ - -#define CFI_INTEL_SR_READY 1 << 7 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_SR_ERASE_SUSPEND 1 << 6 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_SR_ERASE_ERROR 1 << 5 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_SR_PROGRAM_ERROR 1 << 4 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_SR_VPEN_ERROR 1 << 3 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_SR_PROGRAM_SUSPEND 1 << 2 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_SR_BLOCK_LOCKED 1 << 1 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */ -#define CFI_INTEL_SR_BEFP 1 << 0 /* 28FxxxK3, 28FxxxK18 */ - -/* Intel flash device ID codes for 28FxxxJ3A - see Table 5. in [1] */ - -#define CFI_CHIP_INTEL_28F320J3A 0x0016 -#define CFI_CHIPN_INTEL_28F320J3A "28F320J3A" -#define CFI_CHIP_INTEL_28F640J3A 0x0017 -#define CFI_CHIPN_INTEL_28F640J3A "28F640J3A" -#define CFI_CHIP_INTEL_28F128J3A 0x0018 -#define CFI_CHIPN_INTEL_28F128J3A "28F128J3A" - -/* Intel flash device ID codes for 28FxxxK3 and 28FxxxK18 - see Table 8. in [2] */ - -#define CFI_CHIP_INTEL_28F640K3 0x8801 -#define CFI_CHIPN_INTEL_28F640K3 "28F640K3" -#define CFI_CHIP_INTEL_28F128K3 0x8802 -#define CFI_CHIPN_INTEL_28F128K3 "28F128K3" -#define CFI_CHIP_INTEL_28F256K3 0x8803 -#define CFI_CHIPN_INTEL_28F256K3 "28F256K3" -#define CFI_CHIP_INTEL_28F640K18 0x8805 -#define CFI_CHIPN_INTEL_28F640K18 "28F640K18" -#define CFI_CHIP_INTEL_28F128K18 0x8806 -#define CFI_CHIPN_INTEL_28F128K18 "28F128K18" -#define CFI_CHIP_INTEL_28F256K18 0x8807 -#define CFI_CHIPN_INTEL_28F256K18 "28F256K18" - -#endif /* FLASH_INTEL_H */ diff --git a/board/wepep250/lowlevel_init.S b/board/wepep250/lowlevel_init.S deleted file mode 100644 index 9bb091f..0000000 --- a/board/wepep250/lowlevel_init.S +++ /dev/null @@ -1,145 +0,0 @@ -/* - * Copyright (C) 2001, 2002 ETC s.r.o. - * - * 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. - * - * Written by Marcel Telka <marcel@telka.sk>, 2001, 2002. - * Changes for U-Boot Peter Figuli <peposh@etc.sk>, 2003. - * - * This file is taken from OpenWinCE project hosted by SourceForge.net - * - * Documentation: - * [1] Intel Corporation, "Intel PXA250 and PXA210 Application Processors - * Developer's Manual", February 2002, Order Number: 278522-001 - * [2] Samsung Electronics, "8Mx16 SDRAM 54CSP K4S281633D-RL/N/P", - * Revision 1.0, February 2002 - * [3] Samsung Electronics, "16Mx16 SDRAM 54CSP K4S561633C-RL(N)", - * Revision 1.0, February 2002 - * -*/ - -#include <config.h> -#include <version.h> -#include <asm/arch/pxa-regs.h> - -.globl lowlevel_init -lowlevel_init: - - mov r10, lr - -/* setup memory - see 6.12 in [1] - * Step 1 - wait 200 us - */ - mov r0,#0x2700 /* wait 200 us @ 99.5 MHz */ -1: subs r0, r0, #1 - bne 1b -/* TODO: complete step 1 for Synchronous Static memory*/ - - ldr r0, =0x48000000 /* MC_BASE */ - - -/* step 1.a - setup MSCx - */ - ldr r1, =0x000012B3 /* MSC0_RRR0(1) | MSC0_RDN0(2) | MSC0_RDF0(11) | MSC0_RT0(3) */ - str r1, [r0, #0x8] /* MSC0_OFFSET */ - -/* step 1.c - clear MDREFR:K1FREE, set MDREFR:DRI - * see AUTO REFRESH chapter in section D. in [2] and in [3] - * DRI = (64ms / 4096) * 99.53MHz / 32 = 48 for K4S281633 - * DRI = (64ms / 8192) * 99.52MHz / 32 = 24 for K4S561633 - * TODO: complete for Synchronous Static memory - */ - ldr r1, [r0, #4] /* MDREFR_OFFSET */ - ldr r2, =0x01000FFF /* MDREFR_K1FREE | MDREFR_DRI_MASK */ - bic r1, r1, r2 -#if defined( WEP_SDRAM_K4S281633 ) - orr r1, r1, #48 /* MDREFR_DRI(48) */ -#elif defined( WEP_SDRAM_K4S561633 ) - orr r1, r1, #24 /* MDREFR_DRI(24) */ -#else -#error SDRAM chip is not defined -#endif - - str r1, [r0, #4] /* MDREFR_OFFSET */ - -/* Step 2 - only for Synchronous Static memory (TODO) - * - * Step 3 - same as step 4 - * - * Step 4 - * - * Step 4.a - set MDREFR:K1RUN, clear MDREFR:K1DB2 - */ - orr r1, r1, #0x00010000 /* MDREFR_K1RUN */ - bic r1, r1, #0x00020000 /* MDREFR_K1DB2 */ - str r1, [r0, #4] /* MDREFR_OFFSET */ - -/* Step 4.b - clear MDREFR:SLFRSH */ - bic r1, r1, #0x00400000 /* MDREFR_SLFRSH */ - str r1, [r0, #4] /* MDREFR_OFFSET */ - -/* Step 4.c - set MDREFR:E1PIN */ - orr r1, r1, #0x00008000 /* MDREFR_E1PIN */ - str r1, [r0, #4] /* MDREFR_OFFSET */ - -/* Step 4.d - automatically done - * - * Steps 4.e and 4.f - configure SDRAM - */ -#if defined( WEP_SDRAM_K4S281633 ) - ldr r1, =0x00000AA8 /* MDCNFG_DTC0(2) | MDCNFG_DLATCH0 | MDCNFG_DCAC0(1) | MDCNFG_DRAC0(1) | MDCNFG_DNB0 */ -#elif defined( WEP_SDRAM_K4S561633 ) - ldr r1, =0x00000AC8 /* MDCNFG_DTC0(2) | MDCNFG_DLATCH0 | MDCNFG_DCAC0(1) | MDCNFG_DRAC0(2) | MDCNFG_DNB0 */ -#else -#error SDRAM chip is not defined -#endif - str r1, [r0, #0] /* MDCNFG_OFFSET */ - -/* Step 5 - wait at least 200 us for SDRAM - * see section B. in [2] - */ - mov r2,#0x2700 /* wait 200 us @ 99.5 MHz */ -1: subs r2, r2, #1 - bne 1b - -/* Step 6 - after reset dcache is disabled, so automatically done - * - * Step 7 - eight refresh cycles - */ - mov r2, #0xA0000000 - ldr r3, [r2] - ldr r3, [r2] - ldr r3, [r2] - ldr r3, [r2] - ldr r3, [r2] - ldr r3, [r2] - ldr r3, [r2] - ldr r3, [r2] - -/* Step 8 - we don't need dcache now - * - * Step 9 - enable SDRAM partition 0 - */ - orr r1, r1, #1 /* MDCNFG_DE0 */ - str r1, [r0, #0] /* MDCNFG_OFFSET */ - -/* Step 10 - write MDMRS */ - mov r1, #0 - str r1, [r0, #0x40] /* MDMRS_OFFSET */ - -/* Step 11 - optional (TODO) */ - - mov pc,r10 diff --git a/board/wepep250/wepep250.c b/board/wepep250/wepep250.c deleted file mode 100644 index fe4b6a9..0000000 --- a/board/wepep250/wepep250.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - * Copyright (C) 2003 ETC s.r.o. - * - * 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 - * - * Written by Peter Figuli <peposh@etc.sk>, 2003. - * - */ - -#include <common.h> -#include <asm/arch/pxa-regs.h> - -DECLARE_GLOBAL_DATA_PTR; - -int board_init (void) -{ - gd->bd->bi_arch_number = MACH_TYPE_WEP_EP250; - gd->bd->bi_boot_params = 0xa0000000; -/* - * Setup GPIO stuff to get serial working - */ -#if defined( CONFIG_FFUART ) - GPDR1 = 0x80; - GAFR1_L = 0x8010; -#elif defined( CONFIG_BTUART ) - GPDR1 = 0x800; - GAFR1_L = 0x900000; -#endif - PSSR = 0x20; - - return 0; -} - -int dram_init (void) -{ -#if ( CONFIG_NR_DRAM_BANKS > 0 ) - gd->bd->bi_dram[0].start = WEP_SDRAM_1; - gd->bd->bi_dram[0].size = WEP_SDRAM_1_SIZE; -#endif -#if ( CONFIG_NR_DRAM_BANKS > 1 ) - gd->bd->bi_dram[1].start = WEP_SDRAM_2; - gd->bd->bi_dram[1].size = WEP_SDRAM_2_SIZE; -#endif -#if ( CONFIG_NR_DRAM_BANKS > 2 ) - gd->bd->bi_dram[2].start = WEP_SDRAM_3; - gd->bd->bi_dram[2].size = WEP_SDRAM_3_SIZE; -#endif -#if ( CONFIG_NR_DRAM_BANKS > 3 ) - gd->bd->bi_dram[3].start = WEP_SDRAM_4; - gd->bd->bi_dram[3].size = WEP_SDRAM_4_SIZE; -#endif - - return 0; -} |