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s3c6410_u-boot-2010.03移植

发布日期：2021-10-25 06:15:15 浏览次数：2 分类：技术文章

本文共 19042 字，大约阅读时间需要 63 分钟。

开发环境：

开发板 FriendlyARM Tiny6410

主机 CentOS release 6.4 （Final）

参考：

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 smdk6410cp smdk6400/* smdk6410/cd smdk6410mv 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 
     
      ./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 
      
       ./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 
     
      ./s3c64xx/speed.c:#include 
      
       ./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 
       
        ./s3c64xx/cpu_init.S: * Originates from Samsung's u-boot 1.1.6 port to S3C6400 / SMDK6400./s3c64xx/cpu_init.S:#include 
        
         ./.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 
         
          ./cpu.c:#include

3.3)nand_spl目录

cd nand_spl/board/samsung/mkdir smdk6410cp 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 
     
      ./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 
      
       ./config.mk:# Samsung S3C64xx Reference Platform (smdk6400) board[root@tanghuimin smdk6410]#

3.4）添加头文件smdk6410.h

cd include/configscp smdk6400.h smdk6410.hvim 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.hvim 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" ] ; then    rm -f asm-$2/proc    ln -s ${LNPREFIX}proc-armv asm-$2/procfiif [ "$1" = "smdk6410" ]; then    rm -f regs.h    ln -s asm-$2/arch/s3c6410.h regs.hfi

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_configmake

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 
      
       #include 
       
        #include 
        
         #include 
         
          #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<
          
            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@533MHz         Fclk = 533MHz, Hclk = 133MHz, Pclk = 66MHz (ASYNC Mode) Board:   SMDK6410DRAM:   0 kBFlash:  0 kBNAND:  raise: Signal # 8 caughtraise: Signal # 8 caughtraise: Signal # 8 caughtNAND device: Manufacturer ID: 0xec, Chip ID: 0xd5 (Samsung NAND 2GiB 3,3V 8-bit)NAND bus width 8 instead 16 bitNo NAND device found!!!0 MiB*** Warning - bad CRC, using default environmentIn:    serialOut:   serialErr:   serialNet:   No ethernet found.Hit any key to stop autoboot:  0 no devices availableWrong Image Format for bootm commandERROR: 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@533MHz         Fclk = 533MHz, Hclk = 133MHz, Pclk = 66MHz (ASYNC Mode) Board:   SMDK6410DRAM:  256 MBFlash:  0 kBNAND:  2048 MiB*** Warning - bad CRC, using default environmentIn:    serialOut:   serialErr:   serialNet:   CS8900-0Hit any key to stop autoboot:  0SMDK6410 #

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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