u-boot-2013.04-rc1 在ok6410的移植

1.解壓

tar -jxvf u-boot-2013.04-rc1.tar.bz2

2.刪除不必要的文件

/arch/下除arm 
/arch/arm/cpu/下除arm1176和uboot.lds
/arch/arm/include/asm/arch-* 除 arch-64xx
/board/下除samsung 
/board/samsung/下smdk*除smdk6400
/nand_spl/board/下除samsung

/include/configs/下除smdk6400.h

3.準備ok6410的單板信息

mv board/samsung/smdk6400 board/samsung/ok6410
mv board/samsung/ok6410/smdk6400_nand_spl.c board/samsung/ok6410/ok6410_nand_spl.c 
mv board/samsung/ok6410/smdk6400.c board/samsung/ok6410/ok6410.c 
board/samsung/ok6410/ok6410.c  中 smdk6400 改爲 ok6410  s3c6400 -> s3c6410
board/samsung/ok6410/makefile  中 smdk6400 改爲 ok6410

4.建立nand_spl

mv nand_spl/board/samsung/smdk6400 nand_spl/board/samsung/ok6410
nand_spl/board/samsung/ok6400/makefile 中 smdk6400 改爲 ok6410

5.建立頭文件

mv arch/arm/include/asm/arch-s3c64xx/s3c6400.h arch/arm/include/asm/arch-s3c64xx/s3c6410.h 
arch/arm/include/asm/arch-s3c64xx/s3c6410.h 中
#define DMC1_MEM_CFG    0X0001001A  /* burst 4, 14-bit row, 10-bit col */
#define DMC1_MEM_CFG2   0XB45
#define DMC1_CHIP0_CFG  0X150F0     /* 0X5000_0000~0X5FFF_FFFF(256MB) */

mv include/configs/smdk6400.h   include/configs/ok6410.h
include/configs/ok6410.h 中 S3C6400 改爲 S3C6410
#define CONFIG_SYS_PROMPT   "ok6410#"
#define CONFIG_IDENT_STRING "for ok6410"
#define PHYS_SDRAM_1_SIZE   0x10000000  /* 256MB */

6.處理器makefile

arch/arm/cpu/arm1176/s3c64xx/makefile 中 S3C6400 改爲 S3C6410

7.其他

ok6410.c 和 lowlevel_init.S 中 smdk6400 -> ok6410 s3c6400 -> s3c6410

arch/arm/cpu/arm1176/s3c64xx中
cpu_init.S reset.S speed.c timer.c

drivers/usb/host/s3c64xx-hcd.c
drivers/mtd/nand/s3c64xx.c
drivers/serial/s3c64xx.c

include/common.h        CONFIG_S3C6400 -> CONFIG_S3C6410
drivers/usb/host/ohci-hcd.c CONFIG_S3C6400 -> CONFIG_S3C6410

8.頂層makefile

SMDK6400 -> OK6410

9.編譯

export BUILD_DIR=./build
make ok6410_config
make all

DEBUG:

#arm-linux-ld:/home/forlinx/u-boot/u-boot-2013.04-rc1/build/u-boot.lds:19: syntax error
/home/forlinx/u-boot/u-boot-2013.04-rc1/board/samsung/ok6410/u-boot-nand.lds 中
align -> ALIGN

#/home/forlinx/u-boot/u-boot-2013.04-rc1/build/nand_spl/board/samsung/ok6410/start.S:227: undefined reference to `_main'
nand_spl/board/samsung/ok6410/Makefile 中
SOBJS   = start.o cpu_init.o lowlevel_init.o crt0.o

$(obj)crt0.S:
    @rm -f $@
    @ln -s $(TOPDIR)/arch/arm/lib/crt0.S $@

/arch/arm/lib/crt0.S 中註釋
    @bl coloured_LED_init
    @bl red_led_on

10.MMC啓動

編寫 arch/arm/cpu/arm1176/s3c64xx/s3c6410_sdboot.c
arch/arm/cpu/arm1176/s3c64xx/Makefile中
COBJS-$(CONFIG_S3C6410)    += cpu_init.o speed.o 
COBJS-$(CONFIG_BOOT_SD)    += s3c6410_sdboot.o
COBJS-y += timer.o init.o

arch/arm/cpu/arm1176/start.S中
#if defined(CONFIG_BOOT_SD) && !defined(CONFIG_NAND_SPL)
    ldr     sp,=CONFIG_SYS_INIT_SP_ADDR
    bl  BootCopyMMCtoMem
    cmp r0,#0
copyerror:
    beq     copyerror
    ldr pc,=_main   @to BL2 in SDRAM
#else
    bl  _main
#endif

include/configs/ok6410.h中
#define CONFIG_BOOT_SD

board/samsung/ok6410/lowlevel_init.S中
LED初始化修改
時鐘初始化修改:
    /* FOUT of EPLL is 96MHz */
    @ldr    r1, =0x200203
    ldr r1, =0x80200103 @ldr    r1, =0x80200203
MMU表修改:
    /* 256MB for SDRAM 0xC0000000 -> 0x50000000 */
    .set __base, 0x500
    /*.rept 0xC80 - 0xC00 by Ronny*/
    .rept 0xD00 - 0xC00
    FL_SECTION_ENTRY __base, 3, 0, 1, 1
    .set __base, __base + 1
    .endr

    /* access is not allowed. */
    /*.rept 0x1000 - 0xC80 by Ronny*/
    .rept 0x1000 - 0xD00
    .word 0x00000000
    .endr

include/configs/ok6410.h中
#define CONFIG_MACH_TYPE 1626
#define CONFIG_SYS_HZ   1562500
#define CONFIG_ENV_SIZE 0X80000
#define CONFIG_ENV_OFFSET   0X0080000
#define CONFIG_SYS_NAND_U_BOOT_OFFS (16*1024)
#define CONFIG_SYS_NAND_U_BOOT_SIZE (496*1024)
#define CONFIG_SYS_NAND_PAGE_SIZE 4096
#define CONFIG_SYS_NAND_PAGE_COUNT 128
#define CONFIG_SYS_NAND_BLOCK_SIZE (128*4096)
#define CONFIG_SYS_NO_FLASH

include/flash.h中
#ifdef CONFIG_SYS_NO_FLASH

鏈接文件修改
board/samsung/ok6410/u-boot-nand.lds:
.text      :
    {
      arch/arm/cpu/arm1176/start.o  (.text)
      board/samsung/ok6410/libok6410.o (.text)
      *(.text)
    }

raise : signal #8 caught異常
arch/arm/cpu/arm1176/s3c64xx/timer.c中

DECLARE_GLOBAL_DATA_PTR;
//static ulong timer_load_val;
//static unsigned long lastdec;
//static unsigned long long timestamp;

#define timer_load_val  (gd->arch.timer_rate_hz)
#define lastdec     (gd->arch.lastinc)
#define timestamp   (gd->arch.timer_reset_value)
ulong get_timer_masked(void)
{
    unsigned long long res = get_ticks();
    //do_div (res, (timer_load_val / (100 * CONFIG_SYS_HZ)));
    return res;
}

11.添加MMC驅動

編寫 drivers/mmc/s3c6410_sdhci.c

include/configs/ok6410.h :
#define CONFIG_MMC      //select mmc device as block device
#define CONFIG_GENERIC_MMC  //added mmc.c
#define CONFIG_CMD_MMC      //added cmd_mmc.c
#define CONFIG_SDHCI        //added sdhci.c
#define CONFIG_MMC_SDMA 
#define CONFIG_S3C6410_SDHCI    //added s3c6410_sdhci.c

dirvers/mmc/sdhci.c :
#define SDHCI_DEFAULT_BOUNDARY_SIZE (1024*512)

add_sdhci()
{
..
    mmc->b_max = 1024;  //blocks 
    sdhci_reset(host, SDHCI_RESET_ALL);
    mmc_register(mmc);

    return 0;
}

註釋
//mask |= SDHCI_INT_DATA_END;

drivers/mmc/Makefile
COBJS-$(CONFIG_S3C6410_SDHCI) += s3c6410_sdhci.o

對應uboot的命令

mmc read addr blk# cnt
mmc write addr blk# cnt
mmc erase blk# cnt
mmc rescan
mmc part - lists available partition on current mmc device
mmc dev [dev] [part] - show or set current mmc device [partition]
mmc list - lists available devices
fatinfo mmc 0
fatls mmc 0
fatload mmc 0 50000000 u-boot-nand.bin

12.添加hello命令

編寫 common/cmd_hello.c

common/Makefile
COBJS-$(CONFIG_CMD_HELLO) += cmd_hello.o

ok6410.h
#define CONFIG_CMD_HELLO


#MMC環境變量
ok6410.h
#define CONFIG_ENV_IS_IN_NAND
#define CONFIG_SYS_MMC_ENV_DEV  0

#ifndef CONFIG_ENV_IS_IN_MMC
#define CONFIG_ENV_IS_IN_NAND
#endif

對應命令

env default [-f] -a - [forcibly] reset default environment
env default [-f] var [...] - [forcibly] reset variable(s) to their default values
env delete [-f] var [...] - [forcibly] delete variable(s)
env edit name - edit environment variable
env export [-t | -b | -c] [-s size] addr [var ...] - export environment
env import [-d] [-t | -b | -c] addr [size] - import environment
env print [-a | name ...] - print environment
env run var [...] - run commands in an environment variable
env save - save environment
env set [-f] name [arg ...]
setenv
saveenv
printenv

13.cache

arch/arm/lib/cache.c中
void __enable_caches(void)
{
    icache_enable();
    if(!icache_status()){
        puts("WARING: iCache not enabled\n");
    }
    dcache_enable();
    if(!dcache_status()){
        puts("WARING: dCache not enabled\n");
    }
    //puts("WARNING: Caches not enabled\n");
}

14.添加NAND驅動

///////// nand //////////////
#define CONFIG_S3C6410_CUSTOM_NAND_TIMING
#define CONFIG_S3C6410_TACLS        7   //hclk*tacls        0~7
#define CONFIG_S3C6410_TWRPH0       7   //hclk*(twrph0+1)   0~7
#define CONFIG_S3C6410_TWRPH1       7   //hclk*(twrph1+1)   0~7

#define CONFIG_SYS_NAND_U_BOOT_OFFS     (16*1024)
#define CONFIG_SYS_NAND_U_BOOT_SIZE     (496*1024)
#define CONFIG_SYS_NAND_PAGE_SIZE   4096
#define CONFIG_SYS_NAND_PAGE_COUNT  128
#define CONFIG_SYS_NAND_BLOCK_SIZE  (128*4096)

//#define CONFIG_SYS_NAND_SELECT_DEVICE

#define CONFIG_SYS_S3C_NAND_HWECC
#define CONFIG_NAND_BL1_8BIT_ECC
#define CONFIG_SYS_NAND_ECCSIZE     512
#define CONFIG_SYS_NAND_ECCBYTES    13
#define CONFIG_SYS_NAND_OOBSIZE     218
#define CONFIG_SYS_NAND_ECCPOS      {114,115,116,117,118,119,120,121,122,123,\
                    124,125,126,127,128,129,130,131,132,133,\
                    134,135,136,137,138,139,140,141,142,143,\
                    144,145,146,147,148,149,150,151,152,153,\
                    154,155,156,157,158,159,160,161,162,163,\
                    164,165,166,167,168,169,170,171,172,173,\
                    174,175,176,177,178,179,180,181,182,183,\
                    184,185,186,187,188,189,190,191,192,193,\
                    194,195,196,197,198,199,200,201,202,203,\
                    204,205,206,207,208,209,210,211,212,213,\
                    214,215,216,217}

nand_base.c 中的nand_get_flash_type()函數的讀id有bug，讀id前沒有片選中nand,記得修改,這裏不貼出

drivers/mtd/nand/s3c64xx.c : 
#if defined(CONFIG_S3C6410_CUSTOM_NAND_TIMING)
    tacls  = CONFIG_S3C6410_TACLS;
    twrph0 = CONFIG_S3C6410_TWRPH0;
    twrph1 =  CONFIG_S3C6410_TWRPH1;

    cfg = readl(NFCONF); 
    cfg &= ~(tacls << 12);
    cfg &= ~(twrph0 << 8);
    cfg &= ~(twrph1 << 4);
    cfg |= (tacls << 12);
    cfg |= (twrph0 << 8);
    cfg |= (twrph1 << 4);
    writel(cfg,NFCONF);

    cfg = readl(NFCONT); 
    cfg |= 0x7;
    writel(cfg,NFCONT);
#endif

arch/arm/include/arch-s3c64xx/s3c6410.h : 
#define NF8ECCERR0      __REG(ELFIN_NAND_BASE + 0x44)
#define NF8ECCERR1      __REG(ELFIN_NAND_BASE + 0x48)   
#define NF8ECCERR2      __REG(ELFIN_NAND_BASE + 0x4c)
#define NFM8ECC0        __REG(ELFIN_NAND_BASE + 0x50)
#define NFM8ECC1        __REG(ELFIN_NAND_BASE + 0x54)
#define NFM8ECC2        __REG(ELFIN_NAND_BASE + 0x58)
#define NFM8ECC3        __REG(ELFIN_NAND_BASE + 0x5c)
#define NFMLC8BITPT0        __REG(ELFIN_NAND_BASE + 0x60)
#define NFMLC8BITPT1        __REG(ELFIN_NAND_BASE + 0x64)

board/samsung/ok6410/lowlevel_init.S    :
nand_asm_init:
    ldr r0, =ELFIN_NAND_BASE
    ldr r1, [r0, #NFCONF_OFFSET]
    orr r1, r1, #0x10
    orr r1, r1, #0x300
    str r1, [r0, #NFCONF_OFFSET]

    ldr r1, [r0, #NFCONT_OFFSET]
    orr r1, r1, #0x07
    str r1, [r0, #NFCONT_OFFSET]

    mov pc, lr

nand_base.c:
static struct nand_ecclayout nand_oob_218 = {
    .eccbytes = 104,
    .eccpos = {
           24,25,26,27,28,29,30,31,32,33,
           34,35,36,37,38,39,40,41,42,43,
           44,45,46,47,48,49,50,51,52,53,
           54,55,56,57,58,59,60,61,62,63,
           64,65,66,67,68,69,70,71,72,73,
           74,75,76,77,78,79,80,81,82,83,
           84,85,86,87,88,89,90,91,92,93,
           94,95,96,97,98,99,100,101,102,103,
           104, 105, 106, 107, 108, 109, 110, 111,
           112, 113, 114, 115, 116, 117, 118, 119,
           120, 121, 122, 123, 124, 125, 126, 127},
    .oobfree = {
        {.offset = 2,
         .length = 22} }
};

nand_scan_tail()
{
...
        case 218:
            chip->ecc.layout = &nand_oob_218;
            break;
}
nand_get_flash_type()
{
.....
}

uboot中的命令

nand info - show available NAND devices
nand device [dev] - show or set current device
nand read - addr off|partition size

nand write - addr off|partition size
    read/write 'size' bytes starting at offset 'off'
    to/from memory address 'addr', skipping bad blocks.

nand read.raw - addr off|partition [count]

nand write.raw - addr off|partition [count]
    Use read.raw/write.raw to avoid ECC and access the flash as-is.

nand erase[.spread] [clean] off size - erase 'size' bytes from offset 'off'
    With '.spread', erase enough for given file size, otherwise,
    'size' includes skipped bad blocks.

nand erase.part [clean] partition - erase entire mtd partition'
nand erase.chip [clean] - erase entire chip'
nand bad - show bad blocks
nand dump[.oob] off - dump page
nand scrub [-y] off size | scrub.part partition | scrub.chip really clean NAND erasing bad blocks (UNSAFE)
nand markbad off [...] - mark bad block(s) at offset (UNSAFE)
nand biterr off - make a bit error at offset (UNSAFE)

nand read/write 的 size必須爲頁對齊

15.nand_spl

cmd_nand.c:
do_nand()
{
...
#endif
        }else if(!read && s !=NULL && (!strcmp(s,".uboot")) && nand->writesize == 4096){
            rwsize = 4096;
            nand_write(nand,off,&rwsize,(u_char*)addr);
            off += 4096;
            addr += 2048;
            nand_write(nand,off,&rwsize,(u_char*)addr);
            off += 4096;
            addr += 2048;
            nand_write(nand,off,&rwsize,(u_char*)addr);
            off += 4096;
            addr += 2048;
            nand_write(nand,off,&rwsize,(u_char*)addr);
            off += 4096;
            addr += 2048;
            rwsize = CONFIG_SYS_NAND_U_BOOT_SIZE - 8*1024;
            ret = nand_write(nand,off,&rwsize,(u_char*)addr);
#ifdef CONFIG_CMD_NAND_YAFFS
...
}

nand_spl/board/samsung/ok6410/config.mk
PAD_TO  := $(shell expr $$[$(CONFIG_SYS_TEXT_BASE) + 8192]) #有bug
PAD_TO  := $(shell expr $(CONFIG_SYS_TEXT_BASE) + 8192)
make 後 build/下u-boot.bin大小減u-boot-nand.bin爲8192

nand_spl工程中的所有中間文件
SOBJS   = start.o cpu_init.o lowlevel_init.o crt0.o
COBJS   = nand_boot.o nand_ecc.o s3c64xx.o ok6410_nand_spl.o nand_base.o

crt0.S中的_main中的board_init_f()在生成u-boot.bin和u-boot-nand.bin時有所不同
u-boot.bin in arch/arm/lib/crt0.S 
u-boot-nand.bin in board/samsung/ok6410/ok6410_nand_spl.c

crt0.S:
#if defined(CONFIG_NAND_SPL)
    /* deprecated, use instead CONFIG_SPL_BUILD */
    ldr sp, =(CONFIG_SYS_INIT_SP_ADDR)
/*bss_clean:*/          /* bug*/
    ldr r0, =__bss_start    /* this is auto-relocated! */
    ldr r1, =__bss_end__    /* this is auto-relocated! */
    mov r2, #0x00000000     /* prepare zero to clear BSS */
bss_clean:
    cmp r0,r1
    strlo   r2,[r0]
    addlo   r0,r0,#4
    blo bss_clean
    ldr pc,=nand_boot
#elif defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_STACK)

ok6410.h:
#ifdef CONFIG_ENABLE_MMU
#define CONFIG_SYS_MAPPED_RAM_BASE  0xc0000000
//#define CONFIG_BOOTCOMMAND    "nand read 0xc0018000 0x100000 0x500000;" \
                "bootm 0xc0018000"
#else
#define CONFIG_SYS_MAPPED_RAM_BASE  CONFIG_SYS_SDRAM_BASE
//#define CONFIG_BOOTCOMMAND    "nand read 0x50018000 0x100000 0x500000;" \
                "bootm 0x50018000"
#endif

#ifdef CONFIG_BOOT_SD
#define CONFIG_BOOTCOMMAND  "fatload mmc 0 50008000 u-boot-nand.bin;"   \
                "nand erase.chip;"              \
                "nand write.uboot 50008000 0 0"
#else
#define CONFIG_BOOTCOMMAND  "fatload mmc 0 50008000 uImage;"        \
                "bootm  50008000"
#endif

16.DM9000網卡驅動移植

#if 0
#define CONFIG_CS8900           /* we have a CS8900 on-board    */
#define CONFIG_CS8900_BASE      0x18800300
#define CONFIG_CS8900_BUS16     /* follow the Linux driver  */
#endif
//dm9000 macros
#define CONFIG_DM9000
#define CONFIG_DM9000_NO_SROM 1
#define CONFIG_DRIVER_DM9000 1
//dm9000
#define CONFIG_DM9000_BASE 0x18800300
#define DM9000_IO CONFIG_DM9000_BASE
#define DM9000_DATA (CONFIG_DM9000_BASE + 0X04)
#define CONFIG_DM9000_USE_16BIT
#define CONFIG_ETHADDR  00:40:5c:26:0a:5b
#define CONFIG_NETMASK  255.255.255.0
#define CONFIG_IPADDR       192.168.244.244
#define CONFIG_SERVERIP     192.168.244.132
#define CONFIG_GETEWAYIP    192.168.244.1

board/samsung/ok6410/ok6410.c:
int board_eth_init(bd_t *bis)
{
    int rc = 0;
#ifdef CONFIG_CS8900
    rc = cs8900_initialize(0, CONFIG_CS8900_BASE);
#endif
#ifdef CONFIG_DM9000
    rc = dm9000_initialize(bis);
#endif
    return rc;
}

OK6410移植UBOOT

1.解壓

2.刪除不必要的文件

3.準備ok6410的單板信息

4.建立nand_spl

5.建立頭文件

6.處理器makefile

7.其他

8.頂層makefile

9.編譯

10.MMC啓動

11.添加MMC驅動

12.添加hello命令

13.cache

14.添加NAND驅動

15.nand_spl

16.DM9000網卡驅動移植

Linux系統編程3.時間概念

Linux系統編程4.信號處理

Linux系統編程6.線程操作

Linux系統編程5.消息管理

仿printf實現

Mac下配置sublime實現LaTeX

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