f1c100s spi nand 128MB W25N01G 调试记录

末蓝、 2023-06-25 04:53 26阅读 0赞

# f1c100s 128MB W25N01G spi nand调试记录 #

## 镜像使用说明 ##

镜像位置images文件夹  
uboot-with-spl-usb.bin　FEL模式下使用的uboot镜像  
uboot-with-spl-spinand.bin spi nand启动使用的uboot镜像  
FEL模式下使用标准sunxi-fel执行如下命令

sunxi-fel uboot uboot-with-spl-usb.bin write 0x80000000 uboot-with-spl-spinand.bin

由于sunxi-fel直接写spi nand代码没有调试过，所以直接将uboot镜像传到内存后写入spi nand  
执行完成，等待u-boot倒计时完后会自动将uboot-with-spl-spinand.bin写入spi nand中  
FEL模式日志

U-Boot SPL 2018.01-g5a65529-dirty (Dec 17 2019 - 15:19:40)
    DRAM: 64 MiB
    Trying to boot from FEL
    
    
    U-Boot 2018.01-g5a65529-dirty (Dec 17 2019 - 15:19:40 +0800) Allwinner Technology
    
    CPU:   Allwinner F Series (SUNIV)
    Model: Lichee Pi Nano
    DRAM:  64 MiB
    MMC:   SUNXI SD/MMC: 0
    SPI-NAND: W25N01GV is found size: 128MB.
    read status2:0x18
    internal ecc is on now turn off
    write status2:0x8
    read status2:0x8
    *** Warning - bad CRC, using default environment
    
    In:    serial@1c25000
    Out:   serial@1c25000
    Err:   serial@1c25000
    Net:   No ethernet found.
    starting USB...
    No controllers found
    Hit any key to stop autoboot:  0 
    SPI-NAND: W25N01GV is found size: 128MB.
    read status2:0x18
    internal ecc is on now turn off
    write status2:0x8
    read status2:0x8
    SPI-NAND: 1310720 bytes @ 0x0 Updated: OK
    SPI-NAND: W25N01GV is found size: 128MB.
    read status2:0x18
    internal ecc is on now turn off
    write status2:0x8
    read status2:0x8
    SPI-NAND: 2490368 bytes @ 0x80000 Read: OK
    Unknown command 'sf' - try 'help'
    Wrong Image Format for bootm command
    ERROR: can't get kernel image!
    =>

因为没有内核所以最后会报错，不用管,烧录完成后spi nand启动日志如下

U-Boot SPL 2018.01-g5a65529-dirty (Dec 17 2019 - 15:20:01)
    DRAM: 64 MiB
    Trying to boot from sunxi SPI
    
    
    U-Boot 2018.01-g5a65529-dirty (Dec 17 2019 - 15:20:01 +0800) Allwinner Technology
    
    CPU:   Allwinner F Series (SUNIV)
    Model: Lichee Pi Nano
    DRAM:  64 MiB
    MMC:   SUNXI SD/MMC: 0
    SPI-NAND: W25N01GV is found size: 128MB.
    read status2:0x18
    internal ecc is on now turn off
    write status2:0x8
    read status2:0x8
    *** Warning - bad CRC, using default environment
    
    In:    serial@1c25000
    Out:   serial@1c25000
    Err:   serial@1c25000
    Net:   No ethernet found.
    starting USB...
    No controllers found
    Hit any key to stop autoboot:  0 
    =>

## 源码编译 ##

源码编译需要编译两次，分别生成FEL镜像和SPI NAND镜像  
首先修改uboot源码下build.sh中交叉编译器

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- licheepi_nano_spinand_defconfig
    make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- -j8

我的交叉编译工具已经加入到了系统环境变量

### 生成FEL镜像 ###

修改uboot源码include/configs/sunxi-common.h  
打开\#define GZYS\_USBBURN 1定义

#ifndef _SUNXI_COMMON_CONFIG_H
    #define _SUNXI_COMMON_CONFIG_H
    
    #include <asm/arch/cpu.h>
    #include <linux/stringify.h>
    #define GZYS_USBBURN	1
    #ifdef CONFIG_OLD_SUNXI_KERNEL_COMPAT

保存后在uboot源码根目录下执行./build.sh进行编译，最后输出信息如下

CC      spl/drivers/mtd/spi/sunxi_spi_nand_spl.o
      CC      spl/drivers/serial/serial.o
      CC      spl/drivers/serial/serial_ns16550.o
      CC      spl/drivers/serial/ns16550.o
      LD      spl/disk/built-in.o
      LD      spl/lib/built-in.o
      LD      spl/drivers/serial/built-in.o
      LD      spl/drivers/mmc/built-in.o
      LD      spl/drivers/built-in.o
      LD      spl/u-boot-spl
      OBJCOPY spl/u-boot-spl-nodtb.bin
      COPY    spl/u-boot-spl.bin
      MKSUNXI spl/sunxi-spl.bin
      BINMAN  u-boot-sunxi-with-spl.bin
      CFGCHK  u-boot.cfg
    please delete GZYS_USBBURN in include/configs/sunxi-common.h file and rebuild to create spi nand image
    DONE

此时uboot源码根目录下会生成uboot-with-spl-usb.bin文件

### 生成SPI NAND镜像 ###

修改uboot源码include/configs/sunxi-common.h  
注释掉\#define GZYS\_USBBURN 1定义

保存后在uboot源码根目录下执行./build.sh进行编译，最后输出信息如下

Copying block 23 to 46
    1+0 records in
    1+0 records out
    1024 bytes (1.0 kB, 1.0 KiB) copied, 0.000163137 s, 6.3 MB/s
    Copying block 24 to 48
    1+0 records in
    1+0 records out
    1024 bytes (1.0 kB, 1.0 KiB) copied, 0.000174752 s, 5.9 MB/s
    Copying block 25 to 50
    1+0 records in
    1+0 records out
    1024 bytes (1.0 kB, 1.0 KiB) copied, 0.000165035 s, 6.2 MB/s
    Appending u-boot
    984+0 records in
    984+0 records out
    1007616 bytes (1.0 MB, 984 KiB) copied, 0.00353802 s, 285 MB/s
    done
    burn uboot-with-spl-spinand.bin to spi nand
    cmd is sunxi-fel uboot uboot-with-spl-usb.bin write 0x80000000 uboot-with-spl-spinand.bin
    DONE

此时uboot源码根目录下会生成uboot-with-spl-spinand.bin文件

## 调试中出现的问题及修改 ##

### uboot源码增加对w25n01g支持 ###

diff --git a/drivers/mtd/spi-nand/spi-nand-base.c b/drivers/mtd/spi-nand/spi-nand-base.c
    index 442a595..bee8a93 100755
    --- a/drivers/mtd/spi-nand/spi-nand-base.c
    +++ b/drivers/mtd/spi-nand/spi-nand-base.c
    @@ -25,6 +25,8 @@ extern int spi_nand_issue_cmd(struct spi_nand_chip *chip, struct spi_nand_cmd *c
     int spi_nand_erase(struct spi_nand_chip *chip, uint64_t addr, uint64_t len);
     
     static struct spi_nand_flash spi_nand_table[] = { 
    +	SPI_NAND_INFO("W25N01GV", 0xEF, 0xAA, 2048, 64, 64, 1024,
    +			1, 1, 0 | SPINAND_NEED_PLANE_SELECT),
     	SPI_NAND_INFO("GD5F1GQ4UAYIG", 0xC8, 0xF1, 2048, 64, 64, 1024,
     			1, 1, 0 | SPINAND_USED_GIGADEVICE),
     	SPI_NAND_INFO("GD5F1GQ4UBYIG", 0xC8, 0xD1, 2048, 64, 64, 1024,
    @@ -1844,6 +1846,22 @@ static void spi_nand_set_rd_wr_op(struct spi_nand_chip *chip)
     		chip->write_cache_rdm_op = SPINAND_CMD_PROG_LOAD_RDM_DATA;
     	}
     }
    +//add by leijie for w25n01g turn off internal ecc
    +static void w25n01_turn_off_iecc(struct spi_nand_chip *chip)
    +{ 
    +	u8 buf[1];
    +	spi_nand_read_reg(chip,0xb0,buf);
    +	printf("read status2:0x%x\n",buf[0]);
    +	if(buf[0] & 0x10) { //internal ecc
    +		printf("internal ecc is on now turn off\n");
    +		buf[0] = buf[0] & ~(1 << 4);
    +		printf("write status2:0x%x\n",buf[0]);
    +		spi_nand_write_reg(chip,0xb0,buf);
    +	}
    +	spi_nand_read_reg(chip,0xb0,buf);
    +	printf("read status2:0x%x\n",buf[0]);
    +	return;
    +}
     
     /** * spi_nand_init - [Interface] Init SPI-NAND device driver @@ -1879,8 +1897,9 @@ static int spi_nand_init(struct spi_slave *spi, struct spi_nand_chip **chip_ptr) return -ENODEV; ident_done: - spi_nand_info("SPI-NAND: %s is found.\n", chip->name); - + spi_nand_info("SPI-NAND: %s is found size: %dMB.\n", chip->name,chip->size/1024/1024); + if(id[0] == 0xef) + w25n01_turn_off_iecc(chip); // giga-device need re-config rd/wr options if( chip->options & SPINAND_USED_GIGADEVICE ) spi_nand_set_rd_wr_op(chip);

主要增加了wn25n01内部ecc判断

20191226后面发现spi nand驱动中有对内部ecc进行判断 所以需要把增加的w25n01\_turn\_off\_iecc函数删除,这里源码就不进行更新了

### spi nand镜像脚本制作 ###

参照  
[https://whycan.cn/t\_1594.html][https_whycan.cn_t_1594.html]  
中的脚本  
[gen\_sunxi\_spinand\_onlyboot\_img.sh][gen_sunxi_spinand_onlyboot_img.sh]  
制作了f1c100\_uboot\_spinand.sh

#!/bin/bash
    
    set -e
    [ $# -eq 2 ] || {
        echo "SYNTAX: $0 <outputfile> <u-boot image>"
        echo "Given: $@"
        exit 1
    }
    
    OUTPUT="$1"
    UBOOT="$2"
    PAGESIZE=2048
    BLOCKSIZE=128
    
    TOOLCHECK=$(od --help | grep 'endia')
    if [ "$TOOLCHECK" == "" ]; then
    	echo "od cmd is too old not support endia"
    	exit -1
    fi
    # SPL-Size is an uint32 at 16 bytes offset contained in the SPL header
    #uboot header offset head in include/configs/sunxi-common.h CONFIG_SYS_SPI_U_BOOT_OFFS so spl max size is CONFIG_SYS_SPI_U_BOOT_OFFS
    #f1c100s modify CONFIG_SYS_SPI_U_BOOT_OFFS to 0xd000(52K)
    SPLSIZE=$(od -An -t u4 -j16 -N4 "$UBOOT" | xargs)
    printf "SPLSIZE:%d(0x%x)\n" $SPLSIZE $SPLSIZE
    # The u-boot size is an uint32 at (0xd000 + 12) bytes offset uboot start offset 0xd000(52K)
    UBOOTSIZE=$(od --endian=big -An -t u4 -j$((53248 + 12)) -N4 "$UBOOT" | xargs)
    printf "UBOOTSIZE:%d(0x%x)\n" $UBOOTSIZE $UBOOTSIZE
    ALIGNCHECK=$(($PAGESIZE%1024))
    if [ "$ALIGNCHECK" -ne "0" ]; then
    	echo "Page-size is not 1k alignable and thus not supported by EGON"
    	exit -1
    fi
    
    KPAGESIZE=$(($PAGESIZE/1024))
    SPLBLOCKS=25
    
    echo "Generating boot0 for boot part of max size 0x8000 SPLBLOCKS:$SPLBLOCKS"
    dd if="/dev/zero" of="$OUTPUT" bs=1024 count=$((52 - $SPLBLOCKS))
    
    for splcopy in `seq 0 $SPLBLOCKS`;
    do
    	to=$(($splcopy*$KPAGESIZE))
    	echo "Copying block $splcopy to $to" 
    	dd if="$UBOOT" of="$OUTPUT" bs=1024 count=1 seek=$to skip=$splcopy conv=notrunc
    done
    
    echo "Appending u-boot"
    dd if="$UBOOT" of="$OUTPUT" bs=1024 seek=52 skip=52 conv=notrunc
    sync
    echo "done"

其中将页大小和块大小值固定,只传输出文件和输入文件名

由于f1c100s生成的spl镜像sunxi-spl.bin大小为固定值24576个字节，所以简化了脚本

内部brom spi nand启动必需1KB对齐所以将spl镜像放大两倍后小于52KB,暂使用52K这个值

也就是说spl镜像最大为52KB,同时uboot镜像的起始地址为0xd000(52KB)

同时需要修改uboot源码include/configs/sunxi-common.h中的CONFIG\_SYS\_SPI\_U\_BOOT\_OFFS为0xd000

和CONFIG\_SPL\_PAD\_TO为CONFIG\_SYS\_SPI\_U\_BOOT\_OFFS

这里有个地方要注意下，如果在FEL模式下运行uboot镜像，需要将CONFIG\_SYS\_SPI\_U\_BOOT\_OFFS改回0x8000,不然sunxi-fel会报错

### 启动报错 ###

U-Boot SPL 2018.01-g5a65529-dirty (Dec 17 2019 - 15:20:01)
    DRAM: 64 MiB
    Trying to boot from sunxi SPI

从spi nand启动卡在上面这个地方，通过加调试信息找到了一个问题  
支持spi nand的uboot源码drivers/mtd/spi/sunxi\_spi\_nand\_spl.c  
在函数  
static u32 sunxi\_spi0\_read\_data中addr默认加了0x8000  
需要把这个注释掉

index f70e1ac..0e2a60d 100644
    --- a/drivers/mtd/spi/sunxi_spi_nand_spl.c
    +++ b/drivers/mtd/spi/sunxi_spi_nand_spl.c
    @@ -266,7 +266,7 @@ static u32 sunxi_spi0_read_data(u8 *buf, u32 addr, u32 bufsize,
     #ifdef CONFIG_SPINAND
     { 
     	u32 ret = bufsize;
    -	addr += 0x8000;
    +	//addr += 0x8000; //modify by leijie
     	int page = addr >> 11;
     	if( pages != page ) {  // need read to cache
     		writel(4, spi_bc_reg); /* Burst counter (total bytes) */

源码及相关说明:  
[f1c100s spi nand启动调试记录][f1c100s spi nand]

[https_whycan.cn_t_1594.html]: https://whycan.cn/t_1594.html
[gen_sunxi_spinand_onlyboot_img.sh]: https://github.com/bhorn/openwrt/blob/dolphinpi-spinand/target/linux/sunxi/image/gen_sunxi_spinand_onlyboot_img.sh
[f1c100s spi nand]: https://github.com/hcly/f1c100s