s3c6410_u-boot-2010.03移植

开发环境：

开发板 FriendlyARM Tiny6410

主机 CentOS release 6.4 （Final）

参考：

http://www.cnblogs.com/plinx/archive/2013/03/15/2960925.html

http://www.cnblogs.com/plinx/archive/2013/04/11/2963823.html

http://www.cnblogs.com/plinx/archive/2013/04/13/3015851.html

http://wenku.baidu.com/view/a4d3f5320b4c2e3f572763d5.html

u-boot的2010.03版本最接近三星定制的s3c-u-boot-1.1.6版本，所以选此版本尝试移植。对于arm11架构的芯片，u-boot-2010.03仅支持6400，我们可以复制并修改6400的相关文件，使u-boot支持6410。

1.获得源码

到http://ftp.denx.de/pub/u-boot/下载u-boot-2010.03.tar.bz2，解压。

2.首次编译

在u-boot根目录配置并编译

make smdk6400_config
make

编译成功，在u-boot根目录下生成的u-boot.bin即为u-boot镜像。

3.文件添加

make clean

3.1）board目录

cd board/samsung/
mkdir smdk6410
cp smdk6400/* smdk6410/
cd smdk6410
mv smdk6400.c smdk6410.c

将目录下所有文件中的。

查找board/samsung/smdk6410目录下含有“6400”的文件，将这些文件中的“6400”替换成“6410”。vim下的替换命令是“:%s/6400/6410/g”。

[root@tanghuimin smdk6410]# find . -name "*" | xargs grep "6400"
./Makefile:COBJS-y    := smdk6400.o
./lowlevel_init.S:#include <asm/arch/s3c6400.h>
./lowlevel_init.S:    /* r1 = physical address of s3c6400_cpu_resume function */
./lowlevel_init.S:    /* Jump to kernel (sleep-s3c6400.S) */
./lowlevel_init.S:     * seem to make much sense on S3C6400.
./lowlevel_init.S:#ifndef CONFIG_S3C6400
./lowlevel_init.S:#elif !defined(CONFIG_S3C6400)
./lowlevel_init.S:    /* According to 661558um_S3C6400X_rev10.pdf 0x20 is reserved */
./lowlevel_init.S: * NAND Interface init for SMDK6400
./lowlevel_init.S: * MMU Table for SMDK6400
./config.mk:# SAMSUNG SMDK6400 board with mDirac3 (ARM1176) cpu
./config.mk:# On SMDK6400 we use the 64 MB SDRAM bank at
./smdk6410.c:#include <asm/arch/s3c6400.h>
./smdk6410.c:    printf("Board:   SMDK6400\n");
./smdk6410.c:ulong virt_to_phy_smdk6400(ulong addr)
[root@tanghuimin smdk6410]#

3.2)cpu目录

查找cpu/arm1176目录下含有“6400”的文件，将这些文件中的“6400”替换成“6410”。vim下的替换命令是“:%s/6400/6410/g”。

[root@tanghuimin arm1176]# pwd
/home/thm/u-boot/u-boot-2010.03/cpu/arm1176
[root@tanghuimin arm1176]#
[root@tanghuimin arm1176]# find . -name "*" | xargs grep "6400"
./s3c64xx/Makefile:COBJS-$(CONFIG_S3C6400)    += cpu_init.o speed.o
./s3c64xx/timer.c:#include <asm/arch/s3c6400.h>
./s3c64xx/speed.c:#include <asm/arch/s3c6400.h>
./s3c64xx/speed.c:     * Bit 7 exists on s3c6410, and not on s3c6400, it is reserved on
./s3c64xx/speed.c:     * s3c6400 and is always 0, and it is indeed running in ASYNC mode
./s3c64xx/speed.c:    printf("\nCPU:     S3C6400@%luMHz\n", get_ARMCLK() / 1000000);
./s3c64xx/reset.S:#include <asm/arch/s3c6400.h>
./s3c64xx/cpu_init.S: * Originates from Samsung's u-boot 1.1.6 port to S3C6400 / SMDK6400
./s3c64xx/cpu_init.S:#include <asm/arch/s3c6400.h>
./.depend: /home/thm/u-boot/u-boot-2010.03/include/configs/smdk6400.h \
./.depend: /home/thm/u-boot/u-boot-2010.03/include/asm/arch/s3c6400.h \
./.depend: /home/thm/u-boot/u-boot-2010.03/include/configs/smdk6400.h \
./.depend: /home/thm/u-boot/u-boot-2010.03/include/asm/arch/s3c6400.h \
./start.S: *  armboot - Startup Code for S3C6400/ARM1176 CPU-core
./start.S:#include <asm/arch/s3c6400.h>
./cpu.c:#include <asm/arch/s3c6400.h>

3.3)nand_spl目录

cd nand_spl/board/samsung/
mkdir smdk6410
cp smdk6400/* smdk6410/
cd smdk6410

查找nand_spl/board/samsung/smdk6410目录下含有“6400”的文件，将这些文件中的“6400”替换成“6410”。vim下的替换命令是“:%s/6400/6410/g”。

[root@tanghuimin smdk6410]# pwd
/home/thm/u-boot/u-boot-2010.03/nand_spl/board/samsung/smdk6410
[root@tanghuimin smdk6410]#
[root@tanghuimin smdk6410]# find . -name "*"| xargs grep "6400"
./Makefile:    @ln -s $(TOPDIR)/board/samsung/smdk6400/lowlevel_init.S $@
./lowlevel_init.S:#include <asm/arch/s3c6400.h>
./lowlevel_init.S:    /* r1 = physical address of s3c6400_cpu_resume function */
./lowlevel_init.S:    /* Jump to kernel (sleep-s3c6400.S) */
./lowlevel_init.S:     * seem to make much sense on S3C6400.
./lowlevel_init.S:#ifndef CONFIG_S3C6400
./lowlevel_init.S:#elif !defined(CONFIG_S3C6400)
./lowlevel_init.S:    /* According to 661558um_S3C6400X_rev10.pdf 0x20 is reserved */
./lowlevel_init.S: * NAND Interface init for SMDK6400
./lowlevel_init.S: * MMU Table for SMDK6400
./s3c64xx.c:#include <asm/arch/s3c6400.h>
./config.mk:# Samsung S3C64xx Reference Platform (smdk6400) board
[root@tanghuimin smdk6410]#

3.4）添加头文件smdk6410.h

cd include/configs
cp smdk6400.h smdk6410.h
vim smdk6410.h
:%s/6400/6410/g

3.5）添加头文件s3c6410.h

cd include/asm-arm/arch-s3c64xx/
cp s3c6400.h s3c6410.h
vim s3c6410.h
:%s/6400/6410/g

并且修改

#include "s3c64x0.h"

为

#include "./asm/arch/s3c64x0.h"

3.6）修改根目录下mkconfig

if [ "$2" = "arm" ] ; thenrm -f asm-$2/procln -s ${LNPREFIX}proc-armv asm-$2/proc
fiif [ "$1" = "smdk6410" ]; thenrm -f regs.hln -s asm-$2/arch/s3c6410.h regs.h
fi

3.7）修改根目录下Makefile

搜索6400可以看到smdk6400的配置项，复制smdk6400的配置项并把6400改为6410。

#########################################################################
## ARM1176 Systems
#########################################################################
smdk6400_noUSB_config    \
smdk6400_config    :    unconfig@mkdir -p $(obj)include $(obj)board/samsung/smdk6400@mkdir -p $(obj)nand_spl/board/samsung/smdk6400@echo "#define CONFIG_NAND_U_BOOT" > $(obj)include/config.h@if [ -z "$(findstring smdk6400_noUSB_config,$@)" ]; then            \echo "RAM_TEXT = 0x57e00000" >> $(obj)board/samsung/smdk6400/config.tmp;\$(MKCONFIG) $(@:_config=) arm arm1176 smdk6400 samsung s3c64xx;        \else                                        \echo "RAM_TEXT = 0xc7e00000" >> $(obj)board/samsung/smdk6400/config.tmp;\$(MKCONFIG) $(@:_noUSB_config=) arm arm1176 smdk6400 samsung s3c64xx;    \fi@echo "CONFIG_NAND_U_BOOT = y" >> $(obj)include/config.mksmdk6410_noUSB_config    \
smdk6410_config    :    unconfig@mkdir -p $(obj)include $(obj)board/samsung/smdk6410@mkdir -p $(obj)nand_spl/board/samsung/smdk6410@echo "#define CONFIG_NAND_U_BOOT" > $(obj)include/config.h@if [ -z "$(findstring smdk6410_noUSB_config,$@)" ]; then            \echo "RAM_TEXT = 0x57e00000" >> $(obj)board/samsung/smdk6410/config.tmp;\$(MKCONFIG) $(@:_config=) arm arm1176 smdk6410 samsung s3c64xx;        \else                                        \echo "RAM_TEXT = 0xc7e00000" >> $(obj)board/samsung/smdk6410/config.tmp;\$(MKCONFIG) $(@:_noUSB_config=) arm arm1176 smdk6410 samsung s3c64xx;    \fi@echo "CONFIG_NAND_U_BOOT = y" >> $(obj)include/config.mk

3.8)配置编译

make smdk6410_config
make

可以编译成功。

4.文件修改

4.1)cpu/arm1176/start.S

4.1.1）将如下红色代码段注释掉，添加“mcr p15,0,r0,c1,c0,0”。

#ifndef CONFIG_NAND_SPL /* * flush v4 I/D caches */ mov     r0, #0 mcr     p15, 0, r0, c7, c7, 0   /* flush v3/v4 cache */ mcr     p15, 0, r0, c8, c7, 0   /* flush v4 TLB */ /* * disable MMU stuff and caches */ mrc     p15, 0, r0, c1, c0, 0 bic     r0, r0, #0x00002300     @ clear bits 13, 9:8 (--V- --RS) bic     r0, r0, #0x00000087     @ clear bits 7, 2:0 (B--- -CAM) orr     r0, r0, #0x00000002     @ set bit 2 (A) Align orr     r0, r0, #0x00001000     @ set bit 12 (I) I-Cache /* Prepare to disable the MMU */ adr     r1, mmu_disable_phys /* We presume we're within the first 1024 bytes */ and     r1, r1, #0x3fc ldr     r2, _TEXT_PHY_BASE ldr     r3, =0xfff00000 and     r2, r2, r3 orr     r2, r2, r1 b       mmu_disable .align 5 /* Run in a single cache-line */ mmu_disable: mcr     p15, 0, r0, c1, c0, 0 nop nop mov     pc, r2 #endif

修改后的代码如下：

#ifndef CONFIG_NAND_SPL /* * flush v4 I/D caches */ mov     r0, #0 mcr     p15, 0, r0, c7, c7, 0   /* flush v3/v4 cache */ mcr     p15, 0, r0, c8, c7, 0   /* flush v4 TLB */ /* * disable MMU stuff and caches */ mrc     p15, 0, r0, c1, c0, 0 bic     r0, r0, #0x00002300     @ clear bits 13, 9:8 (--V- --RS) bic     r0, r0, #0x00000087     @ clear bits 7, 2:0 (B--- -CAM) orr     r0, r0, #0x00000002     @ set bit 2 (A) Align orr     r0, r0, #0x00001000     @ set bit 12 (I) I-Cache    mcr     p15, 0, r0, c1, c0, 0
#if 0 /* Prepare to disable the MMU */ adr     r1, mmu_disable_phys /* We presume we're within the first 1024 bytes */ and     r1, r1, #0x3fc ldr     r2, _TEXT_PHY_BASE ldr     r3, =0xfff00000 and     r2, r2, r3 orr     r2, r2, r1 b       mmu_disable .align 5 /* Run in a single cache-line */ mmu_disable: mcr     p15, 0, r0, c1, c0, 0 nop nop mov     pc, r2
#endif 

#endif

4.1.2）查找“lowlevel_init”，在其下添加

 /* when we already run in ram, we don't need to relocate U-Boot. * and actually, memory controller must be configured before U-Boot * is running in ram. */ ldr     r0, =0xff000fff bic     r1, pc, r0              /* r0 <- current base addr of code */ ldr     r2, _TEXT_PHY_BASE      /* r1 <- original base addr in ram */ bic     r2, r2, r0              /* r0 <- current base addr of code */ cmp     r1, r2                  /* compare r0, r1                  */ beq     after_copy #ifdef CONFIG_BOOT_NAND mov     r0, #0x1000 bl      copy_from_nand
#endif

4.1.3）查找

#ifdef CONFIG_ENABLE_MMU
_mmu_table_base: .word mmu_table
#endif

在其下添加

/* * copy U-Boot to SDRAM and jump to ram (from NAND or OneNAND) * r0: size to be compared * Load 1'st 2blocks to RAM because U-boot's size is larger than 1block(128k) size */ .globl copy_from_nand
copy_from_nand: mov     r10, lr         /* save return address */ mov     r9, r0 /* get ready to call C functions */ ldr     sp, _TEXT_PHY_BASE      /* setup temp stack pointer */ sub     sp, sp, #12 mov     fp, #0                  /* no previous frame, so fp=0 */ mov     r9, #0x1000 bl      copy_uboot_to_ram 3:      tst     r0, #0x0 bne     copy_failed ldr     r0, =0x0c000000 ldr     r1, _TEXT_PHY_BASE
1:      ldr     r3, [r0], #4 ldr     r4, [r1], #4 teq     r3, r4 bne     compare_failed  /* not matched */ subs    r9, r9, #4 bne     1b 4:      mov     lr, r10         /* all is OK */ mov     pc, lr copy_failed: nop                     /* copy from nand failed */ b       copy_failed compare_failed: nop                     /* compare failed */ b       compare_failed

4.2）在cpu/arm1176下添加nand_cp.c

/** $Id: nand_cp.c,v 1.4 2008/04/08 00:41:40 jsgood Exp $** (C) Copyright 2006 Samsung Electronics** 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*//** You must make sure that all functions in this file are designed* to load only U-Boot image.** So, DO NOT USE in common read.** By scsuh.*/#include <common.h>
#include <asm/io.h>
#include <linux/mtd/nand.h>
#include <regs.h>#define NF8_ReadPage(a,b,c)    (((int(*)(uint, uint, uchar *))(*((uint *)(0x0c004000))))(a,b,c))
#define NF8_ReadPage_Adv(a,b,c)    (((int(*)(uint, uint, uchar *))(*((uint *)(0x0c004004))))(a,b,c))void nand_bl2_copy(void)
{int block, page;volatile uint *base = (uint *) 0x57e00000;for (block = 0; block < 16; block++) {for (page = 0; page < 32; page++) {NF8_ReadPage(block, page, (uchar *)base);base += (512 / (sizeof(uint)));}}
}void nand_bl2_copy_adv(void)
{int block, page;volatile uint *base = (uint *) 0x57e00000;for (block = 0; block < 2; block++) {for (page = 0; page < 128; page++) {NF8_ReadPage_Adv(block, page, (uchar *) base);base += (2048 / (sizeof(uint)));}}
}/** address format*              17 16         9 8            0* --------------------------------------------* | block(12bit) | page(5bit) | offset(9bit) |* --------------------------------------------*/static int nandll_read_page (uchar *buf, ulong addr, int large_block)
{int i;int page_size = 512;if (large_block)page_size = 2048;NAND_ENABLE_CE();NFCMD_REG = NAND_CMD_READ0;/* Write Address */NFADDR_REG = 0;if (large_block)NFADDR_REG = 0;NFADDR_REG = (addr) & 0xff;NFADDR_REG = (addr >> 8) & 0xff;NFADDR_REG = (addr >> 16) & 0xff;if (large_block)NFCMD_REG = NAND_CMD_READSTART;NF_TRANSRnB();/* for compatibility(2460). u32 cannot be used. by scsuh */for(i=0; i < page_size; i++) {*buf++ = NFDATA8_REG;}NAND_DISABLE_CE();return 0;
}/** Read data from NAND.*/
static int nandll_read_blocks (ulong dst_addr, ulong size, int large_block)
{uchar *buf = (uchar *)dst_addr;int i;uint page_shift = 9;if (large_block)page_shift = 11;/* Read pages */for (i = 0; i < (0x3c000>>page_shift); i++, buf+=(1<<page_shift)) {nandll_read_page(buf, i, large_block);}return 0;
}int copy_uboot_to_ram (void)
{int large_block = 0;int i;vu_char id;NAND_ENABLE_CE();NFCMD_REG = NAND_CMD_READID;NFADDR_REG =  0x00;/* wait for a while */for (i=0; i<200; i++);id = NFDATA8_REG;id = NFDATA8_REG;if (id > 0x80)large_block = 1;/* read NAND Block.* 128KB ->240KB because of U-Boot size increase. by scsuh* So, read 0x3c000 bytes not 0x20000(128KB).*/return nandll_read_blocks(CFG_PHY_UBOOT_BASE, 0x3c000, large_block);
}

View Code

4.3）修改cpu/arm1176/Makefile

COBJS   = cpu.o nand_cp.o

4.4）修改cpu/arm1176/u-boot.lds

.text :
{cpu/arm1176/start.o    (.text)cpu/arm1176/s3c64xx/cpu_init.o    (.text)board/samsung/smdk6410/lowlevel_init.o    (.text)cpu/arm1176/nand_cp.o    (.text)lib_arm/board.o    (.text)*(.text)
}

4.5）修改board/samsung/smdk6410/u-boot-nand.lds

.text      : { cpu/arm1176/start.o   (.text) cpu/arm1176/s3c64xx/cpu_init.o        (.text) board/samsung/smdk6410/lowlevel_init.o        (.text) cpu/arm1176/nand_cp.o         (.text) lib_arm/board.o       (.text) *(.text) }

4.6）修改nand_spl/board/samsung/smdk6410/Makefile

COBJS   = nand_boot.o nand_ecc.o s3c64xx.o nand_cp.o

补全规则

# from SoC directory
$(obj)cpu_init.S: @rm -f $@ @ln -s $(TOPDIR)/cpu/arm1176/s3c64xx/cpu_init.S $@ $(obj)nand_cp.c: @rm -f $@ @ln -s $(TOPDIR)/cpu/arm1176/nand_cp.c $@

4.7）修改根目录下u-boot.lds

 .text : { cpu/arm1176/start.o (.text) cpu/arm1176/s3c64xx/cpu_init.o (.text) board/samsung/smdk6410/lowlevel_init.o (.text) cpu/arm1176/nand_cp.o (.text) lib_arm/board.o (.text) *(.text) }

4.8）修改include/configs/smdk6410.h

#if !defined(CONFIG_NAND_SPL) && (TEXT_BASE >= 0xc0000000)
#define CONFIG_ENABLE_MMU
#ifdef CONFIG_ENABLE_MMU
#define virt_to_phys(x) virt_to_phy_smdk6410(x)
#else
#define virt_to_phys(x) (x)
#endif
#endif

#define MACH_TYPE               2520

//#define PHYS_SDRAM_1_SIZE     0x08000000      /* 128 MB in Bank #1    */
#define PHYS_SDRAM_1_SIZE       0x10000000      /* 256 MB in Bank #1    */

//#define CONFIG_SYS_HZ                 1000
#define CONFIG_SYS_HZ                   2062500 //PCLK 66HZ

文件末尾添加

#define NAND_DISABLE_CE()       (NFCONT_REG |= (1 << 1))
#define NAND_ENABLE_CE()        (NFCONT_REG &= ~(1 << 1))
#define NF_TRANSRnB()           do { while(!(NFSTAT_REG & (1 << 0))); } while(0)#define CFG_PHY_UBOOT_BASE      CONFIG_SYS_PHY_UBOOT_BASE

4.9）再次编译，生成u-boot.bin，将u-boot.bin烧写到nand flash，开发板从nand flash启动。

打印信息如下：

U-Boot 2010.03 (Sep 10 2014 - 23:12:36) for SMDK6410CPU:     S3C6410@533MHzFclk = 533MHz, Hclk = 133MHz, Pclk = 66MHz (ASYNC Mode)
Board:   SMDK6410
DRAM:   0 kB
Flash:  0 kB
NAND:  raise: Signal # 8 caught
raise: Signal # 8 caught
raise: Signal # 8 caught
NAND device: Manufacturer ID: 0xec, Chip ID: 0xd5 (Samsung NAND 2GiB 3,3V 8-bit)
NAND bus width 8 instead 16 bit
No NAND device found!!!
0 MiB
*** Warning - bad CRC, using default environmentIn:    serial
Out:   serial
Err:   serial
Net:   No ethernet found.
Hit any key to stop autoboot:  0 no devices available
Wrong Image Format for bootm command
ERROR: can't get kernel image!
SMDK6410 #

5. 问题解决

开发板从nand flash启动时，有异常信息打印。

5.1）问题1：

DRAM:   0 kB

解决方法：

将include/asm_arm/global_data.h中

#define DECLARE_GLOBAL_DATA_PTR     register volatile gd_t *gd asm ("r8")

修改为

#define DECLARE_GLOBAL_DATA_PTR     extern volatile gd_t *gd;

将lib_arm/board.c中

DECLARE_GLOBAL_DATA_PTR;

修改为

volatile gd_t *gd;

5.2）问题2：

NAND:  raise: Signal # 8 caught
raise: Signal # 8 caught
raise: Signal # 8 caught
NAND device: Manufacturer ID: 0xec, Chip ID: 0xd5 (Samsung NAND 2GiB 3,3V 8-bit)
NAND bus width 8 instead 16 bit
No NAND device found!!!
0 MiB

解决方法：

将drivers/mtd/nand/s3c64xx.c函数board_nand_init中

nand->options           = 0;

改为

nand->options           = 0x20000;

将drivers/mtd/nand/nand_base.c函数nand_get_flash_type中

busw = (extid & 0x01) ? NAND_BUSWIDTH_16 : 0;

改为

busw = 0;

修改cpu/arm1176/s3c64xx/timer.c中函数get_timer_masked（解决“raise: Signal # 8 caught” ）

ulong get_timer_masked(void)                                                                                                                                        { unsigned long long res = get_ticks(); //do_div (res, (timer_load_val / (100 * CONFIG_SYS_HZ))); return res;
}

5.3）问题三：

*** Warning - bad CRC, using default environment

暂时无解，此警告不影响u-boot功能。

重新编译，烧写，启动

U-Boot 2010.03 (Sep 10 2014 - 23:28:54) for SMDK6410CPU:     S3C6410@533MHzFclk = 533MHz, Hclk = 133MHz, Pclk = 66MHz (ASYNC Mode)
Board:   SMDK6410
DRAM:  256 MB
Flash:  0 kB
NAND:  2048 MiB
*** Warning - bad CRC, using default environmentIn:    serial
Out:   serial
Err:   serial
Net:   CS8900-0
Hit any key to stop autoboot:  0
SMDK6410 #

6.修改网卡配置

smdk6400.h中网卡配置为CS8900，而开发板上的网卡为DM9000，网卡相关配置修改如下：

6.1）修改include/configs/smdk6410.h

/** Hardware drivers*/
#define CONFIG_NET_MULTI
//#define CONFIG_CS8900            /* we have a CS8900 on-board    */
//#define CONFIG_CS8900_BASE          0x18800300
//#define CONFIG_CS8900_BUS16        /* follow the Linux driver    */#define CONFIG_DRIVER_DM9000    1    /* we have a DM9000 on-board    */
#define CONFIG_DM9000_USE_16BIT    1
#define CONFIG_DM9000_BASE    0x18000300
#define DM9000_IO    CONFIG_DM9000_BASE
#define DM9000_DATA    (CONFIG_DM9000_BASE+4)#define CONFIG_ETHADDR    08:90:90:90:90:90
#define CONFIG_NETMASK    255.255.255.0
#define    CONFIG_IPADDR    192.168.1.230
#define CONFIG_SERVERIP    192.168.1.88
#define CONFIG_GATEWAYIP    192.168.1.1

6.2）修改net/eth.c

#if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750) mv6436x_eth_initialize(bis);
#endif
#if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx) mv6446x_eth_initialize(bis);
#endif #if defined(CONFIG_DRIVER_DM9000) dm9000_initialize(bis);
#endif

转载于:https://www.cnblogs.com/tanghuimin0713/p/3965528.html

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