【smart210-SDK】u-boot移植
想要代码的直接走起：
https://github.com/fanglinn/smart210-SDK
支持u-boot-2014， linux-3.10.79，已经jffs2/yaffs2文件系统，并有详细的手册说明。
平台
reference : smdkc100
gcc : arm-linux-gcc-4.5.1
注意有些使用goni为参考平台，goni移植起来确实更简单，但是goni没有用到spl，根据smart210的启动流程，最好有spl。
这里使用smdkc100作为模板
建立单板
vim Makefile
CROSS_COMPILE ?= /home/flinn/tools/4.5.1/bin/arm-none-linux-gnueabi-
cp -r board/samsung/smdkc100/ board/samsung/smart210
mv board/samsung/smart210/smdkc100.c board/samsung/smart210/smart210.c
vim board/samsung/smart210/Makefile
obj-y := smart210.o onenand.o
cp include/configs/smdkc100.h include/configs/smart210.h
vim boards.cfg
Active arm armv7 s5pc1xx samsung smart210 smart210 - Flinn make smart210_config
make all移植 u-boot-spl.bin
我们采用 SPL 方式，因此需要在单板配置文件
vim include/configs/smart210.h
#define CONFIG_SPLmake all
报错：
arch/arm/lib/built-in.o: In function `_main':
/home/flinn/work/u-boot-2014.04/arch/arm/lib/crt0.S:74: undefined reference to `board_init_f'
make[1]: *** [spl/u-boot-spl] Error 1
make: *** [spl/u-boot-spl] Error 2但是编译出错，我们前面分析得知在 u-boot-2014.04/arch/arm/lib/board.c 中定义了一个函数 board_init_f，这个函数进行了非常多的初始化操作，由于 u-boot-spl.bin 的最终目的只是把 BL2 从外部存储器（SD 卡、NAND）拷贝到 SDRAM，所以 u-boot-spl.bin 只需初始化时钟、SDRAM、NAND，然后调用一个拷贝函数，拷贝完成后直接跳转到 SDRAM 执行 BL2，就完事了，我们可以修改 crt0.S，不让其调用 board_init_f。
crt0.S
vim arch/arm/lib/crt0.S
#if !defined(CONFIG_SPL_BUILD)
ldr sp, =(CONFIG_SYS_INIT_SP_ADDR)
bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
sub sp, sp, #GD_SIZE /* allocate one GD above SP */
bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
mov r9, sp /* GD is above SP */
mov r0, #0
#endif
/* add by FLinn */
#ifdef CONFIG_SPL_BUILD
bl copy_bl2_to_ram
ldr pc, =CONFIG_SYS_SDRAM_BASE
#else
bl board_init_f
#endifcopy_bl2_to_ram在smart210.c里面实现，用于从SD或者nand中拷贝bl2到DDR，完成拷贝后直接跳转到DDR的起始地址。
smart210.c
vim board/samsung/smart210/smart210.c
#ifndef CONFIG_SPL_BUILD /* add by Flinn */
。。。
#else
void copy_bl2_to_ram(void)
{
/*
** ch: 閫氶亾
** sb: 璧峰鍧?
** bs: 鍧楀ぇ灏?
** dst: 鐩殑鍦?
** i: 鏄惁鍒濆鍖?
*/
#define CopySDMMCtoMem(ch, sb, bs, dst, i) \
(((u8(*)(int, u32, unsigned short, u32*, u8))\
(*((u32 *)0xD0037F98)))(ch, sb, bs, dst, i))
#define MP0_1CON (*(volatile u32 *)0xE02002E0)
#define MP0_3CON (*(volatile u32 *)0xE0200320)
#define MP0_6CON (*(volatile u32 *)0xE0200380)
#define NF8_ReadPage_Adv(a,b,c) (((int(*)(u32, u32, u8*))(*((u32 *)0xD0037F90)))(a,b,c))
u32 bl2Size = 250 * 1024; // 250K
u32 OM = *(volatile u32 *)(0xE0000004); // OM Register
OM &= 0x1F; // 鍙栦綆5浣?
if (OM == 0x2) // NAND 2 KB, 5cycle 8-bit ECC
{
u32 cfg = 0;
struct s5pv210_nand *nand_reg = (struct s5pv210_nand *)(struct s5pv210_nand *)samsung_get_base_nand();
/* initialize hardware */
/* HCLK_PSYS=133MHz(7.5ns) */
cfg = (0x1 << 23) | /* Disable 1-bit and 4-bit ECC */
(0x3 << 12) | /* 7.5ns * 2 > 12ns tALS tCLS */
(0x2 << 8) | /* (1+1) * 7.5ns > 12ns (tWP) */
(0x1 << 4) | /* (0+1) * 7.5 > 5ns (tCLH/tALH) */
(0x0 << 3) | /* SLC NAND Flash */
(0x0 << 2) | /* 2KBytes/Page */
(0x1 << 1); /* 5 address cycle */
writel(cfg, &nand_reg->nfconf);
writel((0x1 << 1) | (0x1 << 0), &nand_reg->nfcont);
/* Disable chip select and Enable NAND Flash Controller */
/* Config GPIO */
MP0_1CON &= ~(0xFFFF << 8);
MP0_1CON |= (0x3333 << 8);
MP0_3CON = 0x22222222;
MP0_6CON = 0x22222222;
int i = 0;
int pages = bl2Size / 2048; //
int offset = 0x4000 / 2048; // u-boot.bin
u8 *p = (u8 *)CONFIG_SYS_SDRAM_BASE;
for (; i < pages; i++, p += 2048, offset += 1)
NF8_ReadPage_Adv(offset / 64, offset % 64, p);
}
else if (OM == 0xC) // SD/MMC
{
u32 V210_SDMMC_BASE = *(volatile u32 *)(0xD0037488); // V210_SDMMC_BASE
u8 ch = 0;
/* 7.9.1 SD/MMC REGISTER MAP */
if (V210_SDMMC_BASE == 0xEB000000) //
ch = 0;
else if (V210_SDMMC_BASE == 0xEB200000) //
ch = 2;
CopySDMMCtoMem(ch, 32, bl2Size / 512, (u32 *)CONFIG_SYS_SDRAM_BASE, 0);
}
}
#endif由于里面使用了nand相关寄存器，需要添加nand_reg.h
nand_reg.h
vim arch/arm/include/asm/arch-s5pc1xx/nand_reg.h
#ifndef __ASM_ARM_ARCH_NAND_REG_H_
#define __ASM_ARM_ARCH_NAND_REG_H_
#ifndef __ASSEMBLY__
struct s5pv210_nand {
u32 nfconf;
u32 nfcont;
u32 nfcmmd;
u32 nfaddr;
u32 nfdata;
u32 nfmeccd0;
u32 nfmeccd1;
u32 nfseccd;
u32 nfsblk;
u32 nfeblk;
u32 nfstat;
u32 nfeccerr0;
u32 nfeccerr1;
u32 nfmecc0;
u32 nfmecc1;
u32 nfsecc;
u32 nfmlcbitpt;
u8 res0[0x1ffbc];
u32 nfeccconf;
u8 res1[0x1c];
u32 nfecccont;
u8 res2[0xc];
u32 nfeccstat;
u8 res3[0xc];
u32 nfeccsecstat;
u8 res4[0x4c];
u32 nfeccprgecc0;
u32 nfeccprgecc1;
u32 nfeccprgecc2;
u32 nfeccprgecc3;
u32 nfeccprgecc4;
u32 nfeccprgecc5;
u32 nfeccprgecc6;
u8 res5[0x14];
u32 nfeccerl0;
u32 nfeccerl1;
u32 nfeccerl2;
u32 nfeccerl3;
u32 nfeccerl4;
u32 nfeccerl5;
u32 nfeccerl6;
u32 nfeccerl7;
u8 res6[0x10];
u32 nfeccerp0;
u32 nfeccerp1;
u32 nfeccerp2;
u32 nfeccerp3;
u8 res7[0x10];
u32 nfeccconecc0;
u32 nfeccconecc1;
u32 nfeccconecc2;
u32 nfeccconecc3;
u32 nfeccconecc4;
u32 nfeccconecc5;
u32 nfeccconecc6;
};
#endif
#endif并在smart210.c包含
#include /* add by Flinn */ 編譯報錯：
board/samsung/smart210/built-in.o: In function `copy_bl2_to_ram':
/home/flinn/work/u-boot-2014.04/board/samsung/smart210/smart210.c:112: undefined reference to `samsung_get_base_nand'
make[1]: *** [spl/u-boot-spl] Error 1
make: *** [spl/u-boot-spl] Error 2cpu.h
vim arch/arm/include/asm/arch-s5pc1xx/cpu.h
/* S5PV210 add by Flinn */
#define S5PV210_PRO_ID 0xE0000000
#define S5PV210_CLOCK_BASE 0xE0100000
#define S5PV210_GPIO_BASE 0xE0200000
#define S5PV210_PWMTIMER_BASE 0xE2500000
#define S5PV210_WATCHDOG_BASE 0xE2700000
#define S5PV210_UART_BASE 0xE2900000
#define S5PV210_SROMC_BASE 0xE8000000
#define S5PV210_MMC_BASE 0xEB000000
#define S5PV210_DMC0_BASE 0xF0000000
#define S5PV210_DMC1_BASE 0xF1400000
#define S5PV210_VIC0_BASE 0xF2000000
#define S5PV210_VIC1_BASE 0xF2100000
#define S5PV210_VIC2_BASE 0xF2200000
#define S5PV210_VIC3_BASE 0xF2300000
#define S5PV210_NAND_BASE 0xB0E00000
#define S5PV210_LCD_BASE 0xF8000000
。。。
#define SAMSUNG_BASE(device, base) \
static inline unsigned int samsung_get_base_##device(void) \
{ \
return S5PV210_##base; \
}
...
/* add by Flinn */
SAMSUNG_BASE(dmc0, DMC0_BASE)
SAMSUNG_BASE(dmc1, DMC1_BASE)
SAMSUNG_BASE(nand, NAND_BASE)编译出错：
/home/flinn/work/u-boot-2014.04/tools/mkexynosspl spl/u-boot-spl.bin spl/smart210-spl.bin
make[1]: /home/flinn/work/u-boot-2014.04/tools/mkexynosspl: Command not found
make[1]: *** [spl/smart210-spl.bin] Error 127
make: *** [spl/u-boot-spl] Error 2tools/mksmart210.c
vim tools/mksmart210.c
#include
#include
#include
#define IMG_SIZE 16 * 1024
#define HEADER_SIZE 16
int main (int argc, char *argv[])
{
FILE *fp;
unsigned char *buffer;
int bufferLen;
int nbytes, fileLen;
unsigned int checksum, count;
int i;
if (argc != 3)
{
printf("Usage: %s \n", argv[0]);
return -1;
}
/* 分配16KByte的buffer,BL1最大为16KByte,并初始化为0 */
buffer = calloc(1, IMG_SIZE);
if (!buffer)
{
perror("Alloc buffer failed!");
return -1;
}
/* 打开源bin文件 */
fp = fopen(argv[1], "rb");
if( fp == NULL)
{
perror("source file open error");
free(buffer);
return -1;
}
/* 获取源bin文件的长度 */
fseek(fp, 0L, SEEK_END);
fileLen = ftell(fp);
fseek(fp, 0L, SEEK_SET);
/* 源bin文件不得超过(16K-16)Byte */
if (fileLen > (IMG_SIZE - HEADER_SIZE))
{
fprintf(stderr, "Source file is too big(> 16KByte)\n");
free(buffer);
fclose(fp);
}
/* 计算校验和 */
i = 0;
checksum = 0;
while (fread(buffer + HEADER_SIZE + i, 1, 1, fp))
{
checksum += buffer[HEADER_SIZE + i++];
}
fclose(fp);
/* 计算BL1的大小(BL1的大小包括BL1的头信息),并保存到buffer[0~3]中 */
fileLen += HEADER_SIZE;
memcpy(buffer, &fileLen, 4);
// 将校验和保存在buffer[8~15]
memcpy(buffer + 8, &checksum, 4);
/* 打开目标文件 */
fp = fopen(argv[2], "wb");
if (fp == NULL)
{
perror("destination file open error");
free(buffer);
return -1;
}
// 将buffer拷贝到目标bin文件中
nbytes = fwrite(buffer, 1, fileLen, fp);
if (nbytes != fileLen)
{
perror("destination file write error");
free(buffer);
fclose(fp);
return -1;
}
free(buffer);
fclose(fp);
return 0;
} 编译gcc -o tools/mksmart210spl tools/mksmart210.c
spl/Makefile
vim spl/Makefile
$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
$(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
$(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
$(objtree)/tools/mk$(BOARD)spl) $< $@
endif编译OK
烧录
sudo dd iflag=sync oflag=sync if=spl/smart210-spl.bin of=/dev/sdc seek=1
sudo dd iflag=sync oflag=sync if=u-boot.bin of=/dev/sdc seek=32沒有任何输出。
vim write2sd.sh
#!/bin/bash
sudo dd iflag=sync oflag=sync if=spl/smart210-spl.bin of=/dev/sdc seek=1
sudo dd iflag=sync oflag=sync if=u-boot.bin of=/dev/sdc seek=32
sync
echo "done."chmod +x write2sd.sh
lowlevel_init.S
vim board/samsung/smart210/lowlevel_init.S
.globl lowlevel_init
lowlevel_init:
mov r9, lr
#ifdef CONFIG_SPL_BUILD
bl clock_init /* clock init */
bl ddr_init /* DDR init */
/* add by Flinn, for uart */
ldr r0, =0xE0200000 /* GPA0_CON */
ldr r1, =0x22222222
str r1, [r0]
#endif
mov pc, r9 /* return */
clock_init 和 ddr_init在smart210.c里面实现
vim board/samsung/smart210/smart210.c
void clock_init(void)
{
u32 val = 0;
struct s5pv210_clock *const clock = (struct s5pv210_clock *)samsung_get_base_clock();
writel(0xFFFF, &clock->apll_lock);
writel(0xFFFF, &clock->mpll_lock);
writel(0xFFFF, &clock->epll_lock);
writel(0xFFFF, &clock->vpll_lock);
writel((3 << 8) | (125 << 16) | (1 << 0) | (1 << 31), &clock->apll_con0); /* FOUT_APLL = 1000MHz */
writel((12 << 8) | (667 << 16) | (1 << 0) | (1 << 31), &clock->mpll_con); /* FOUT_MPLL = 667MHz */
writel((3 << 8) | (48 << 16) | (2 << 0) | (1 << 31), &clock->epll_con0); /* FOUT_EPLL = 96MHz */
writel((6 << 8) | (108 << 16) | (3 << 0) | (1 << 31), &clock->vpll_con); /* FOUT_VPLL = 54MHz */
while (!(readl(&clock->apll_con0) & (1 << 29)));
while (!(readl(&clock->mpll_con) & (1 << 29)));
while (!(readl(&clock->apll_con0) & (1 << 29)));
while (!(readl(&clock->epll_con0) & (1 << 29)));
while (!(readl(&clock->vpll_con) & (1 << 29)));
writel((1 << 0) | (1 << 4) | (1 << 8) | (1 << 12), &clock->src0);
val = (0 << 0) | /* APLL_RATIO = 0, freq(ARMCLK) = MOUT_MSYS / (APLL_RATIO + 1) = 1000MHz */
(4 << 4) | /* A2M_RATIO = 4, freq(A2M) = SCLKAPLL / (A2M_RATIO + 1) = 200MHz */
(4 << 8) | /* HCLK_MSYS_RATIO = 4, freq(HCLK_MSYS) = ARMCLK / (HCLK_MSYS_RATIO + 1) = 200MHz */
(1 << 12) | /* PCLK_MSYS_RATIO = 1, freq(PCLK_MSYS) = HCLK_MSYS / (PCLK_MSYS_RATIO + 1) = 100MHz */
(3 << 16) | /* HCLK_DSYS_RATIO = 3, freq(HCLK_DSYS) = MOUT_DSYS / (HCLK_DSYS_RATIO + 1) = 166MHz */
(1 << 20) | /* PCLK_DSYS_RATIO = 1, freq(PCLK_DSYS) = HCLK_DSYS / (PCLK_DSYS_RATIO + 1) = 83MHz */
(4 << 24) | /* HCLK_PSYS_RATIO = 4, freq(HCLK_PSYS) = MOUT_PSYS / (HCLK_PSYS_RATIO + 1) = 133MHz */
(1 << 28); /* PCLK_PSYS_RATIO = 1, freq(PCLK_PSYS) = HCLK_PSYS / (PCLK_PSYS_RATIO + 1) = 66MHz */
writel(val, &clock->div0);
}
void ddr_init(void)
{
struct s5pv210_dmc0 *const dmc0 = (struct s5pv210_dmc0 *)samsung_get_base_dmc0();
struct s5pv210_dmc1 *const dmc1 = (struct s5pv210_dmc1 *)samsung_get_base_dmc1();
/* DMC0 */
writel(0x00101000, &dmc0->phycontrol0);
writel(0x00101002, &dmc0->phycontrol0); /* DLL on */
writel(0x00000086, &dmc0->phycontrol1);
writel(0x00101003, &dmc0->phycontrol0); /* DLL start */
while ((readl(&dmc0->phystatus) & 0x7) != 0x7); /* wait DLL locked */
writel(0x0FFF2350, &dmc0->concontrol); /* Auto Refresh Counter should be off */
writel(0x00202430, &dmc0->memcontrol); /* Dynamic power down should be off */
writel(0x20E01323, &dmc0->memconfig0);
writel(0xFF000000, &dmc0->prechconfig);
writel(0xFFFF00FF, &dmc0->pwrdnconfig);
writel(0x00000618, &dmc0->timingaref); /* 7.8us * 200MHz = 1560 = 0x618 */
writel(0x19233309, &dmc0->timingrow);
writel(0x23240204, &dmc0->timingdata);
writel(0x09C80232, &dmc0->timingpower);
writel(0x07000000, &dmc0->directcmd); /* NOP */
writel(0x01000000, &dmc0->directcmd); /* PALL */
writel(0x00020000, &dmc0->directcmd); /* EMRS2 */
writel(0x00030000, &dmc0->directcmd); /* EMRS3 */
writel(0x00010400, &dmc0->directcmd); /* EMRS enable DLL */
writel(0x00000542, &dmc0->directcmd); /* DLL reset */
writel(0x01000000, &dmc0->directcmd); /* PALL */
writel(0x05000000, &dmc0->directcmd); /* auto refresh */
writel(0x05000000, &dmc0->directcmd); /* auto refresh */
writel(0x00000442, &dmc0->directcmd); /* DLL unreset */
writel(0x00010780, &dmc0->directcmd); /* OCD default */
writel(0x00010400, &dmc0->directcmd); /* OCD exit */
writel(0x0FF02030, &dmc0->concontrol); /* auto refresh on */
writel(0xFFFF00FF, &dmc0->pwrdnconfig);
writel(0x00202400, &dmc0->memcontrol);
/* DMC1 */
writel(0x00101000, &dmc1->phycontrol0);
writel(0x00101002, &dmc1->phycontrol0); /* DLL on */
writel(0x00000086, &dmc1->phycontrol1);
writel(0x00101003, &dmc1->phycontrol0); /* DLL start */
while ((readl(&dmc1->phystatus) & 0x7) != 0x7); /* wait DLL locked */
writel(0x0FFF2350, &dmc1->concontrol); /* Auto Refresh Counter should be off */
writel(0x00202430, &dmc1->memcontrol); /* Dynamic power down should be off */
writel(0x40E01323, &dmc1->memconfig0);
writel(0xFF000000, &dmc1->prechconfig);
writel(0xFFFF00FF, &dmc1->pwrdnconfig);
writel(0x00000618, &dmc1->timingaref); /* 7.8us * 200MHz = 1560 = 0x618 */
writel(0x19233309, &dmc1->timingrow);
writel(0x23240204, &dmc1->timingdata);
writel(0x09C80232, &dmc1->timingpower);
writel(0x07000000, &dmc1->directcmd); /* NOP */
writel(0x01000000, &dmc1->directcmd); /* PALL */
writel(0x00020000, &dmc1->directcmd); /* EMRS2 */
writel(0x00030000, &dmc1->directcmd); /* EMRS3 */
writel(0x00010400, &dmc1->directcmd); /* EMRS enable DLL */
writel(0x00000542, &dmc1->directcmd); /* DLL reset */
writel(0x01000000, &dmc1->directcmd); /* PALL */
writel(0x05000000, &dmc1->directcmd); /* auto refresh */
writel(0x05000000, &dmc1->directcmd); /* auto refresh */
writel(0x00000442, &dmc1->directcmd); /* DLL unreset */
writel(0x00010780, &dmc1->directcmd); /* OCD default */
writel(0x00010400, &dmc1->directcmd); /* OCD exit */
writel(0x0FF02030, &dmc1->concontrol); /* auto refresh on */
writel(0xFFFF00FF, &dmc1->pwrdnconfig);
writel(0x00202400, &dmc1->memcontrol);
}smart210.c里面添加头文件
#include/* add by Flinn */ #include /* add by Flinn */
clock.h
vim arch/arm/include/asm/arch-s5pc1xx/clock.h
/* add by Flinn */
struct s5pv210_clock {
unsigned int apll_lock;
unsigned char res1[0x04];
unsigned int mpll_lock;
unsigned char res2[0x04];
unsigned int epll_lock;
unsigned char res3[0x0C];
unsigned int vpll_lock;
unsigned char res4[0xdc];
unsigned int apll_con0;
unsigned int apll_con1;
unsigned int mpll_con;
unsigned char res5[0x04];
unsigned int epll_con0;
unsigned int epll_con1;
unsigned char res6[0x08];
unsigned int vpll_con;
unsigned char res7[0xdc];
unsigned int src0;
unsigned int src1;
unsigned int src2;
unsigned int src3;
unsigned int src4;
unsigned int src5;
unsigned int src6;
unsigned char res8[0x64];
unsigned int mask0;
unsigned int mask1;
unsigned char res9[0x78];
unsigned int div0;
unsigned int div1;
unsigned int div2;
unsigned int div3;
unsigned int div4;
unsigned int div5;
unsigned int div6;
unsigned int div7;
};
dmc.h
vim arch/arm/include/asm/arch-s5pc1xx/dmc.h
#ifndef __ASM_ARM_ARCH_DRAM_H_
#define __ASM_ARM_ARCH_DRAM_H_
#ifndef __ASSEMBLY__
struct s5pv210_dmc0 {
unsigned int concontrol;
unsigned int memcontrol;
unsigned int memconfig0;
unsigned int memconfig1;
unsigned int directcmd;
unsigned int prechconfig;
unsigned int phycontrol0;
unsigned int phycontrol1;
unsigned char res1[0x08];
unsigned int pwrdnconfig;
unsigned char res2[0x04];
unsigned int timingaref;
unsigned int timingrow;
unsigned int timingdata;
unsigned int timingpower;
unsigned int phystatus;
unsigned int chip0status;
unsigned int chip1status;
unsigned int arefstatus;
unsigned int mrstatus;
unsigned int phytest0;
unsigned int phytest1;
};
struct s5pv210_dmc1 {
unsigned int concontrol;
unsigned int memcontrol;
unsigned int memconfig0;
unsigned int memconfig1;
unsigned int directcmd;
unsigned int prechconfig;
unsigned int phycontrol0;
unsigned int phycontrol1;
unsigned char res1[0x08];
unsigned int pwrdnconfig;
unsigned char res2[0x04];
unsigned int timingaref;
unsigned int timingrow;
unsigned int timingdata;
unsigned int timingpower;
unsigned int phystatus;
unsigned int chip0status;
unsigned int chip1status;
unsigned int arefstatus;
unsigned int mrstatus;
unsigned int phytest0;
unsigned int phytest1;
};
#endif
#endif
编译OK
烧录后沒有任何输出：
smart210.h
vim include/configs/smart210.h
#define CONFIG_SYS_SDRAM_BASE 0x20000000 /* modied by Flinn */ /* Text Base */ #define CONFIG_SYS_TEXT_BASE 0x20000000 /*modied by Flinn */ #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + PHYS_SDRAM_1_SIZE)
重新编译，烧录后，
U-Boot 2014.04 (Feb 19 2019 - 19:43:09) for SMDKC100 CPU: S5PC110@1000MHz Board: SMDKC100 DRAM: 128 MiB WARNING: Caches not enabled
卡死了。
原因是smart210沒有onenand
去掉onenand
vim include/configs/smart210.h
#if 0 #define CONFIG_CMD_ONENAND #endif
编译报错 ：
common/built-in.o: In function `env_relocate_spec': /home/flinn/work/u-boot-2014.04/common/env_onenand.c:64: undefined reference to `onenand_mtd' common/built-in.o: In function `saveenv': /home/flinn/work/u-boot-2014.04/common/env_onenand.c:112: undefined reference to `onenand_mtd'
去掉CONFIG_ENV_IS_IN_ONENAND
vim include/configs/smart210.h
#if 0
#define CONFIG_ENV_IS_IN_ONENAND 1
#endif再编译：
common/cmd_nvedit.c:51:3: error: #error Define one of CONFIG_ENV_IS_IN_{EEPROM|FLASH|DATAFLASH|ONENAND|SPI_FLASH|NVRAM|MMC|FAT|REMOTE|UBI} or CONFIG_ENV_IS_NOWHERE
需要定义CONFIG_ENV_IS_IN_NAND
再编译
/home/flinn/work/u-boot-2014.04/common/env_nand.c:259: undefined reference to `nand_read_skip_bad' /home/flinn/work/u-boot-2014.04/common/env_nand.c:273: undefined reference to `nand_info' common/built-in.o: In function `do_env_save': /home/flinn/work/u-boot-2014.04/common/cmd_nvedit.c:692: undefined reference to `saveenv'
需要对nand的支持
s5pv210_nand.c
vim drivers/mtd/nand/s5pv210_nand.c
/*
* (C) Copyright 2006 OpenMoko, Inc.
* Author: Harald Welte
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include
#include
#include
#include
#define MP0_1CON (*(volatile u32 *)0xE02002E0)
#define MP0_3CON (*(volatile u32 *)0xE0200320)
#define MP0_6CON (*(volatile u32 *)0xE0200380)
/* modied by shl */
static void s5pv210_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
struct nand_chip *chip = mtd->priv;
struct s5pv210_nand *nand = (struct s5pv210_nand *)samsung_get_base_nand();
debug("hwcontrol(): 0x%02x 0x%02x\n", cmd, ctrl);
ulong IO_ADDR_W = (ulong)nand;
if (ctrl & NAND_CTRL_CHANGE) {
if (ctrl & NAND_CLE)
IO_ADDR_W = IO_ADDR_W | 0x8; /* Command Register */
else if (ctrl & NAND_ALE)
IO_ADDR_W = IO_ADDR_W | 0xC; /* Address Register */
chip->IO_ADDR_W = (void *)IO_ADDR_W;
if (ctrl & NAND_NCE) /* select */
writel(readl(&nand->nfcont) & ~(1 << 1), &nand->nfcont);
else /* deselect */
writel(readl(&nand->nfcont) | (1 << 1), &nand->nfcont);
}
if (cmd != NAND_CMD_NONE)
writeb(cmd, chip->IO_ADDR_W);
else
chip->IO_ADDR_W = &nand->nfdata;
}
static int s5pv210_dev_ready(struct mtd_info *mtd)
{
struct s5pv210_nand *nand = (struct s5pv210_nand *)samsung_get_base_nand();
debug("dev_ready\n");
return readl(&nand->nfstat) & 0x01;
}
#ifdef CONFIG_S5PV210_NAND_HWECC
void s5pv210_nand_enable_hwecc(struct mtd_info *mtd, int mode)
{
struct s5pv210_nand *nand = (struct s5pv210_nand *)samsung_get_base_nand();
debug("s5pv210_nand_enable_hwecc(%p, %d)\n", mtd, mode);
writel(readl(&nand->nfconf) | (0x3 << 23), &nand->nfconf);
if (mode == NAND_ECC_READ)
{
}
else if (mode == NAND_ECC_WRITE)
{
/* set 8/12/16bit Ecc direction to Encoding */
writel(readl(&nand->nfecccont) | (0x1 << 16), &nand->nfecccont);
/* clear 8/12/16bit ecc encode done */
writel(readl(&nand->nfeccstat) | (0x1 << 25), &nand->nfeccstat);
}
/* Initialize main area ECC decoder/encoder */
writel(readl(&nand->nfcont) | (0x1 << 5), &nand->nfcont);
/* The ECC message size(For 512-byte message, you should set 511)
* 8-bit ECC/512B */
writel((511 << 16) | 0x3, &nand->nfeccconf);
writel(readl(&nand->nfstat) | (0x1 << 4) | (0x1 << 5), &nand->nfstat);
/* Initialize main area ECC decoder/ encoder */
writel(readl(&nand->nfecccont) | (0x1 << 2), &nand->nfecccont);
/* Unlock Main area ECC */
writel(readl(&nand->nfcont) & ~(0x1 << 7), &nand->nfcont);
}
/* modied by shl */
static int s5pv210_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
u_char *ecc_code)
{
struct s5pv210_nand *nand = (struct s5pv210_nand *)samsung_get_base_nand();
u32 nfeccprgecc0 = 0, nfeccprgecc1 = 0, nfeccprgecc2 = 0, nfeccprgecc3 = 0;
/* Lock Main area ECC */
writel(readl(&nand->nfcont) | (1 << 7), &nand->nfcont);
/* 读取13 Byte的Ecc Code */
nfeccprgecc0 = readl(&nand->nfeccprgecc0);
nfeccprgecc1 = readl(&nand->nfeccprgecc1);
nfeccprgecc2 = readl(&nand->nfeccprgecc2);
nfeccprgecc3 = readl(&nand->nfeccprgecc3);
ecc_code[0] = nfeccprgecc0 & 0xff;
ecc_code[1] = (nfeccprgecc0 >> 8) & 0xff;
ecc_code[2] = (nfeccprgecc0 >> 16) & 0xff;
ecc_code[3] = (nfeccprgecc0 >> 24) & 0xff;
ecc_code[4] = nfeccprgecc1 & 0xff;
ecc_code[5] = (nfeccprgecc1 >> 8) & 0xff;
ecc_code[6] = (nfeccprgecc1 >> 16) & 0xff;
ecc_code[7] = (nfeccprgecc1 >> 24) & 0xff;
ecc_code[8] = nfeccprgecc2 & 0xff;
ecc_code[9] = (nfeccprgecc2 >> 8) & 0xff;
ecc_code[10] = (nfeccprgecc2 >> 16) & 0xff;
ecc_code[11] = (nfeccprgecc2 >> 24) & 0xff;
ecc_code[12] = nfeccprgecc3 & 0xff;
debug("s5pv210_nand_calculate_hwecc(%p,):\n"
"0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n"
"0x%02x 0x%02x 0x%02x\n", mtd , ecc_code[0], ecc_code[1], ecc_code[2],
ecc_code[3], ecc_code[4], ecc_code[5], ecc_code[6], ecc_code[7],
ecc_code[8], ecc_code[9], ecc_code[10], ecc_code[11], ecc_code[12]);
return 0;
}
/* add by shl */
#define NF8_ReadPage_Adv(a,b,c) (((int(*)(u32, u32, u8*))(*((u32 *)0xD0037F90)))(a,b,c))
static int s5pv210_nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int oob_required, int page)
{
/* tiny210使用的NAND FLASH一个块64页 */
return NF8_ReadPage_Adv(page / 64, page % 64, buf);
}
static int s5pv210_nand_correct_data(struct mtd_info *mtd, u_char *dat,
u_char *read_ecc, u_char *calc_ecc)
{
if (read_ecc[0] == calc_ecc[0] &&
read_ecc[1] == calc_ecc[1] &&
read_ecc[2] == calc_ecc[2])
return 0;
printf("s5pv210_nand_correct_data: not implemented\n");
return -1;
}
#endif
/*
* add by shl
* nand_select_chip
* @mtd: MTD device structure
* @ctl: 0 to select, -1 for deselect
*
* Default select function for 1 chip devices.
*/
static void s5pv210_nand_select_chip(struct mtd_info *mtd, int ctl)
{
struct nand_chip *chip = mtd->priv;
switch (ctl) {
case -1: /* deselect the chip */
chip->cmd_ctrl(mtd, NAND_CMD_NONE, 0 | NAND_CTRL_CHANGE);
break;
case 0: /* Select the chip */
chip->cmd_ctrl(mtd, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
break;
default:
BUG();
}
}
/* add by shl */
static struct nand_ecclayout nand_oob_64 = {
.eccbytes = 52, /* 2048 / 512 * 13 */
.eccpos = { 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
22, 23, 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},
/* 0和1用于保存坏块标记，12~63保存ecc，剩余2~11为free */
.oobfree = {
{.offset = 2,
.length = 10}
}
};
/* modied by shl */
int board_nand_init(struct nand_chip *nand)
{
u32 cfg = 0;
struct s5pv210_nand *nand_reg = (struct s5pv210_nand *)(struct s5pv210_nand *)samsung_get_base_nand();
debug("board_nand_init()\n");
/* initialize hardware */
/* HCLK_PSYS=133MHz(7.5ns) */
cfg = (0x1 << 23) | /* Disable 1-bit and 4-bit ECC */
/* 下面3个时间参数稍微比计算出的值大些（我这里依次加1），否则读写不稳定 */
(0x3 << 12) | /* 7.5ns * 2 > 12ns tALS tCLS */
(0x2 << 8) | /* (1+1) * 7.5ns > 12ns (tWP) */
(0x1 << 4) | /* (0+1) * 7.5 > 5ns (tCLH/tALH) */
(0x0 << 3) | /* SLC NAND Flash */
(0x0 << 2) | /* 2KBytes/Page */
(0x1 << 1); /* 5 address cycle */
writel(cfg, &nand_reg->nfconf);
writel((0x1 << 1) | (0x1 << 0), &nand_reg->nfcont);
/* Disable chip select and Enable NAND Flash Controller */
/* Config GPIO */
MP0_1CON &= ~(0xFFFF << 8);
MP0_1CON |= (0x3333 << 8);
MP0_3CON = 0x22222222;
MP0_6CON = 0x22222222;
/* initialize nand_chip data structure */
nand->IO_ADDR_R = (void *)&nand_reg->nfdata;
nand->IO_ADDR_W = (void *)&nand_reg->nfdata;
nand->select_chip = s5pv210_nand_select_chip;
/* read_buf and write_buf are default */
/* read_byte and write_byte are default */
/* hwcontrol always must be implemented */
nand->cmd_ctrl = s5pv210_hwcontrol;
nand->dev_ready = s5pv210_dev_ready;
#ifdef CONFIG_S5PV210_NAND_HWECC
nand->ecc.hwctl = s5pv210_nand_enable_hwecc;
nand->ecc.calculate = s5pv210_nand_calculate_ecc;
nand->ecc.correct = s5pv210_nand_correct_data;
nand->ecc.mode = NAND_ECC_HW;
nand->ecc.size = CONFIG_SYS_NAND_ECCSIZE;
nand->ecc.bytes = CONFIG_SYS_NAND_ECCBYTES;
nand->ecc.strength = 1;
/* add by shl */
nand->ecc.layout = &nand_oob_64;
nand->ecc.read_page = s5pv210_nand_read_page_hwecc;
#else
nand->ecc.mode = NAND_ECC_SOFT;
#endif
#ifdef CONFIG_S3C2410_NAND_BBT
nand->bbt_options |= NAND_BBT_USE_FLASH;
#endif
debug("end of nand_init\n");
return 0;
}
vim drivers/mtd/nand/Makefile
obj-$(CONFIG_NAND_S5PV210) += s5pv210_nand.o
此外修改smart210.h
#define CONFIG_CMD_NAND #define CONFIG_SYS_MAX_NAND_DEVICE 1 #define CONFIG_SYS_NAND_BASE 0xB0E00000 #define CONFIG_NAND_S5PV210 #define CONFIG_S5PV210_NAND_HWECC #define CONFIG_SYS_NAND_ECCSIZE 512 #define CONFIG_SYS_NAND_ECCBYTES 13
编译下载后：
U-Boot 2014.04 (Feb 19 2019 - 19:54:24) for SMDKC100
CPU: S5PC110@1000MHz
Board: SMDKC100
DRAM: 128 MiB
WARNING: Caches not enabled
NAND: 1024 MiB
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
Net: smc911x: Invalid chip endian 0x0c070c07
No ethernet found.
Hit any key to stop autoboot: 0
Unknown command 'onenand' - try 'help'
Wrong Image Format for bootm command
ERROR: can't get kernel image!
SMDKC100 #
修改DRAM：
在smart210.h
#define CONFIG_SYS_PROMPT "smart210 # " #define PHYS_SDRAM_1_SIZE (512 << 20) /* 0x8000000, 512 MB Bank #1 */ #define CONFIG_IDENT_STRING " for SMART210"
输出：
U-Boot 2014.04 (Feb 19 2019 - 19:57:47) for SMART210
CPU: S5PC110@1000MHz
Board: SMDKC100
DRAM: 512 MiB
WARNING: Caches not enabled
NAND: 1024 MiB
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
Net: smc911x: Invalid chip endian 0x0c070c07
No ethernet found.
Hit any key to stop autoboot: 0
Unknown command 'onenand' - try 'help'
Wrong Image Format for bootm command
ERROR: can't get kernel image!