mirror of
git://projects.qi-hardware.com/xburst-tools.git
synced 2024-11-22 06:22:47 +02:00
file a way to debug the nand_read.c
if it's work the one led will be always on if something wrong blink two led under Power Button
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fa9c4976fa
commit
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@ -22,7 +22,7 @@ IMAGE = ../image
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CFLAGS = -Wall -I $(INCLUDE) -g -c -o
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START = start.o lowlevel_init.o
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COBJS = start_kboot.o nand_read.o
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COBJS = start_kboot.o nand_read.o blink_led.o
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SRCS := $(START: .o=.S) $(COBJS: .o=.c)
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@ -30,6 +30,7 @@ all:start.S lowlevel_init.S nand_read.c start_kboot.c
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$(CC) $(CFLAGS) start.o start.S
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$(CC) $(CFLAGS) lowlevel_init.o lowlevel_init.S
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$(CC) $(CFLAGS) nand_read.o nand_read.c
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$(CC) $(CFLAGS) blink_led.o blink_led.c
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$(CC) $(CFLAGS) start_kboot.o start_kboot.c
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$(LD) -T$(LDS) -g $(START) $(COBJS) -o start_kboot_all.o
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$(OBJCOPY) -O binary -S start_kboot_all.o $(IMAGE)/start
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@ -19,6 +19,7 @@
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include "blink_led.h"
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#define GPBCON (*(volatile unsigned *)0x56000010)
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#define GPBDAT (*(volatile unsigned *)0x56000014)
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#define GPBDW (*(volatile unsigned *)0x56000018)
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23
qiboot/src/blink_led.h
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23
qiboot/src/blink_led.h
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@ -0,0 +1,23 @@
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/*
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* (C) Copyright 2007 OpenMoko, Inc.
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* Author: xiangfu liu <xiangfu@openmoko.org>
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*
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* Configuation settings for the FIC Neo GTA02 Linux GSM phone
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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int blink_led();
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@ -15,22 +15,24 @@
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* Author: Harald Welte <laforge@openmoko.org>
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*/
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/*#include <common.h>
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#include <linux/mtd/nand.h>
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*/
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#include "nand_read.h"
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#define NAND_CMD_READ0 0
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#define NAND_CMD_READ1 1
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/* Extended commands for large page devices */
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#define NAND_CMD_READSTART 0x30
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#define NAND_CMD_READ0 0
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#define NAND_CMD_READSTART 0x30
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#define __REGb(x) (*(volatile unsigned char *)(x))
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#define __REGw(x) (*(volatile unsigned short *)(x))
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#define __REGi(x) (*(volatile unsigned int *)(x))
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#define __REGb(x) (*(volatile unsigned char *)(x))
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#define __REGw(x) (*(volatile unsigned short *)(x))
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#define __REGi(x) (*(volatile unsigned int *)(x))
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#define NF_BASE 0x4e000000
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#define NFCONF __REGi(NF_BASE + 0x0)
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#define NFCONT __REGi(NF_BASE + 0x4)
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#define NFCMD __REGb(NF_BASE + 0x8)
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#define NFADDR __REGb(NF_BASE + 0xc)
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#define NFDATA __REGb(NF_BASE + 0x10)
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#define NFDATA16 __REGw(NF_BASE + 0x10)
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#define NFDATA16 __REGw(NF_BASE + 0x10)
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#define NFSTAT __REGb(NF_BASE + 0x20)
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#define NFSTAT_BUSY 1
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#define nand_select() (NFCONT &= ~(1 << 1))
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@ -39,7 +41,8 @@
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static inline void nand_wait(void)
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{
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int i=0;
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int i;
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while (!(NFSTAT & NFSTAT_BUSY))
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for (i=0; i<10; i++);
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}
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@ -49,7 +52,7 @@ static inline void nand_wait(void)
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#define NAND_PAGE_SIZE 2048
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#define BAD_BLOCK_OFFSET NAND_PAGE_SIZE
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#define NAND_BLOCK_MASK (NAND_PAGE_SIZE - 1)
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#define NAND_BLOCK_SIZE (NAND_PAGE_SIZE * 64)#endif
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#define NAND_BLOCK_SIZE (NAND_PAGE_SIZE * 64)
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static int is_bad_block(unsigned long i)
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{
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@ -81,6 +84,7 @@ static int nand_read_page_ll(unsigned char *buf, unsigned long addr)
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nand_clear_RnB();
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NFCMD = NAND_CMD_READ0;
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page_num = addr >> 11; /* addr / 2048 */
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/* Write Address */
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NFADDR = 0;
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@ -95,11 +99,12 @@ static int nand_read_page_ll(unsigned char *buf, unsigned long addr)
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*ptr16 = NFDATA16;
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ptr16++;
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}
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return NAND_PAGE_SIZE;
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}
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/* low level nand read function */
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int nand_read_ll(unsigned char *buf, unsigned long start_addr, int size)
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int nand_read_ll(unsigned char *buf, unsigned long start_addr, int size)
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{
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int i, j;
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@ -112,6 +117,17 @@ static int nand_read_page_ll(unsigned char *buf, unsigned long addr)
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for (i=0; i<10; i++);
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for (i=start_addr; i < (start_addr + size);) {
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if (i % NAND_BLOCK_SIZE == 0) {
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if (is_bad_block(i) ||
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is_bad_block(i + NAND_PAGE_SIZE)) {
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/* Bad block */
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i += NAND_BLOCK_SIZE;
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size += NAND_BLOCK_SIZE;
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continue;
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}
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}
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j = nand_read_page_ll(buf, i);
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i += j;
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buf += j;
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@ -122,3 +138,4 @@ static int nand_read_page_ll(unsigned char *buf, unsigned long addr)
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return 0;
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}
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18
qiboot/src/nand_read.h
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18
qiboot/src/nand_read.h
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@ -0,0 +1,18 @@
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/*
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* nand_read.c: Simple NAND read functions for booting from NAND
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*
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* This is used by cpu/arm920/start.S assembler code,
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* and the board-specific linker script must make sure this
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* file is linked within the first 4kB of NAND flash.
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*
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* Taken from GPLv2 licensed vivi bootloader,
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* Copyright (C) 2002 MIZI Research, Inc.
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*
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* Author: Hwang, Chideok <hwang@mizi.com>
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* Date : $Date: 2004/02/04 10:37:37 $
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*
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* u-boot integration and bad-block skipping (C) 2006 by OpenMoko, Inc.
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* Author: Harald Welte <laforge@openmoko.org>
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*/
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int nand_read_ll(unsigned char *buf, unsigned long start_addr, int size);
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include "blink_led.h"
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#include "nand_read.h"
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/*
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unsigned char buf[]={
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0x0d,0xc0,0xa0,0xe1,0x00,0xd8,0x2d,0xe9,0x04,0xb0,0x4c,0xe2,0x4c,0x20,0x9f,0xe5,
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0x05,0x30,0xa0,0xe3,0x00,0x30,0x82,0xe5,0x44,0x20,0x9f,0xe5,0x44,0x30,0x9f,0xe5,
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@ -29,16 +31,22 @@ unsigned char buf[]={
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0x00,0x30,0x82,0xe5,0x0c,0x00,0x9f,0xe5,0x04,0x00,0x00,0xeb,0xf0,0xff,0xff,0xea,
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0x10,0x00,0x00,0x56,0x18,0x00,0x00,0x56,0xff,0xff,0x00,0x00,0x14,0x00,0x00,0x56,
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0x01,0x00,0x50,0xe2,0xfd,0xff,0xff,0x1a,0x0e,0xf0,0xa0,0xe1,0x0a};
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*/
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unsigned char buf[124];
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#define ADDR ((volatile unsigned *)&buf)
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int start_kboot()
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{
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/* nand_read_ll(buf, 0, sizeof(buf));*/
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if(nand_read_ll(buf, 0, sizeof(buf))==-1) {
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blink_led();
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}
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/*
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void (*fp)(void)=(void (*)(void))&buf;
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(fp)();
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*/
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asm volatile("mov pc, %0\n"
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: /* output */
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:"r"(ADDR) /* input */
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