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Licheepi zero SPI Flash 系统编译

發布時間：2024/3/13 windows 35 豆豆

生活随笔收集整理的這篇文章主要介紹了 Licheepi zero SPI Flash 系统编译小編覺得挺不錯的,現在分享給大家,幫大家做個參考.

Licheepi zero SPI Flash 系統編譯

在一些低成本應用場景，需要在SPI
flash上啟動系統，這需要對Uboot和系統鏡像做些適配。

本文介紹SPI Flash鏡像的制作過程。

Flash分區規劃

這里使用 xt25f128b, 16M SPI flash 作為啟動介質，規劃分區如下：

Uboot編譯配置

由于目前Uboot環境變量固定存放在1MB位置之內，所有留給uboot的空間固定到flash前1MB的位置不變。

每個分區的大小必須是擦除塊大小的整數倍，xt25f128b的擦除塊大小是64KB。

準備uboot

下載包含spi驅動的體驗版本uboot，該驅動目前尚未合并到主線

git clone -b v3s-spi-experimental https://github.com/Lichee-Pi/u-boot.git

配置Flash支持型號

執行 make ARCH=arm menuconfig 打開uboot菜單配置，進入到
Device Drivers --> SPI Flash Support

注意看一下自己flash的廠家名稱，例如選上winbond SPI flash support
support用來支持測試用的flash：xt25f128b。

如果使用的是16MB以上的flash，需要勾選flash
bank支持選項，否則最多只能讀到16MB： CONFIG_SPI_FLASH_BAR

配置uboot支持xt25f128b

由于需要移植的 flash 芯片特性和 w25qxxx 系列的 flash 相似，所以可以直接復制過來，修改后如下
uboot工程：drivers/mtd/spi/spi_flash_ids.c
添加參數：

onst struct spi_flash_info spi_flash_ids[] = {...{"w25q128fw", INFO(0xef6018, 0x0, 64 * 1024, 256, RD_FULL | WR_QPP | SECT_4K) },{"xt25f128b", INFO(0x0b4018, 0x0, 64 * 1024, 256, RD_FULL | WR_QPP | SECT_4K) },... };

上面的數據格式為：

/* Used when the "_ext_id" is two bytes at most */ #define INFO(_jedec_id, _ext_id, _sector_size, _n_sectors, _flags) \.id = { \....id_len = (!(_jedec_id) ? 0 : (3 + ((_ext_id) ? 2 : 0))), \.sector_size = (_sector_size), \.n_sectors = (_n_sectors), \.page_size = 256, \.flags = (_flags),

修改之后的文件

#ifdef CONFIG_SPI_FLASH_WINBOND /* WINBOND */{"w25p80", INFO(0xef2014, 0x0, 64 * 1024, 16, 0) },{"w25p16", INFO(0xef2015, 0x0, 64 * 1024, 32, 0) },{"w25p32", INFO(0xef2016, 0x0, 64 * 1024, 64, 0) },{"w25x40", INFO(0xef3013, 0x0, 64 * 1024, 8, SECT_4K) },{"w25x16", INFO(0xef3015, 0x0, 64 * 1024, 32, SECT_4K) },{"w25x32", INFO(0xef3016, 0x0, 64 * 1024, 64, SECT_4K) },{"w25x64", INFO(0xef3017, 0x0, 64 * 1024, 128, SECT_4K) },{"w25q80bl", INFO(0xef4014, 0x0, 64 * 1024, 16, RD_FULL | WR_QPP | SECT_4K) },{"w25q16cl", INFO(0xef4015, 0x0, 64 * 1024, 32, RD_FULL | WR_QPP | SECT_4K) },{"w25q32bv", INFO(0xef4016, 0x0, 64 * 1024, 64, RD_FULL | WR_QPP | SECT_4K) },{"w25q64cv", INFO(0xef4017, 0x0, 64 * 1024, 128, RD_FULL | WR_QPP | SECT_4K) },{"w25q128bv", INFO(0xef4018, 0x0, 64 * 1024, 256, RD_FULL | WR_QPP | SECT_4K) },{"w25q256", INFO(0xef4019, 0x0, 64 * 1024, 512, RD_FULL | WR_QPP | SECT_4K) },{"w25q80bw", INFO(0xef5014, 0x0, 64 * 1024, 16, RD_FULL | WR_QPP | SECT_4K) },{"w25q16dw", INFO(0xef6015, 0x0, 64 * 1024, 32, RD_FULL | WR_QPP | SECT_4K) },{"w25q32dw", INFO(0xef6016, 0x0, 64 * 1024, 64, RD_FULL | WR_QPP | SECT_4K) },{"w25q64dw", INFO(0xef6017, 0x0, 64 * 1024, 128, RD_FULL | WR_QPP | SECT_4K) },{"w25q128fw", INFO(0xef6018, 0x0, 64 * 1024, 256, RD_FULL | WR_QPP | SECT_4K) },{"xt25f128b", INFO(0x0b4018, 0x0, 64 * 1024, 256, RD_FULL | WR_QPP | SECT_4K) }, #endif

配置uboot默認環境變量

在文件 include/configs/sun8i.h
中添加默認bootcmd和bootargs的環境變量設置，注意添加的位置在“ #include
<configs/sunxi-common.h> ”的前邊。

#define CONFIG_BOOTCOMMAND "sf probe 0; " \"sf read 0x41800000 0x100000 0x10000; " \"sf read 0x41000000 0x110000 0x400000; " \"bootz 0x41000000 - 0x41800000"#define CONFIG_BOOTARGS "console=ttyS0,115200 earlyprintk panic=5 rootwait " \"mtdparts=spi32766.0:1M(uboot)ro,64k(dtb)ro,4M(kernel)ro,-(rootfs) root=31:03 rw rootfstype=jffs2" 環境命令解析：

sf probe 0; //初始化Flash設備（CS拉低）
sf read 0x41800000 0x100000 0x10000;
//從flash0x100000（1MB）位置讀取dtb放到內存0x41800000偏移處。
//如果是bsp的bin，則是0x41d00000
sf read 0x41000000 0x110000 0x400000;
//從flash0x110000（1MB+64KB）位置讀取dtb放到內存0x41000000偏移處。
bootz 0x41000000 （內核地址）- 0x41800000（dtb地址）啟動內核

啟動參數解析

console=ttyS0,115200 earlyprintk panic=5 rootwait
//在串口0上輸出信息
mtdparts=spi32766.0:1M(uboot)ro,64k(dtb)ro,4M(kernel)ro,-(rootfs)
root=31:03 rw rootfstype=jffs2
//spi32766.0是設備名，后面是分區大小，名字，讀寫屬性。
root=31:03表示根文件系統是mtd3；jffs2格式

編譯uboot

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- LicheePi_Zero_defconfig #or make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- LicheePi_Zero_800x480LCD_defconfig #or make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- LicheePi_Zero480x272LCD_defconfig time make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- 2>&1 | tee build.log

會在目錄下生成 u-boot-sunxi-with-spl.bin

linux內核編譯配置

linux內核基于github上的版本https://github.com/Lichee-Pi/linux.git，分支為最新的zero-4.13.y

內核選項配置

首先執行make ARCH=arm licheepi_zero_defconfig定義常量菜單

然后執行 make ARCH=arm menuconfig 打開內核菜單配置，

進入到 Device Drivers --> Memory Technology Device (MTD) support ，

確保選擇上mtd的 **<> Command line partition table parsing*
支持，該項目用來解析uboot傳遞過來的flash分區信息。

以及SPI-NOR 設備的支持。

添加對jffs2文件系統的支持，路徑在
File systems --> Miscellaneous filesystems --> Journalling Flash File System v2 (JFFS2) support

設備樹配置

修改dts配置添加spi flash節點

vi arch/arm/boot/dts/sun8i-v3s-licheepi-zero.dts

添加spi節點配置:

&spi0 {status ="okay";xt25f128b:xt25f128b@0 {compatible = "jedec,spi-nor";reg = <0x0>;spi-max-frequency = <50000000>;#address-cells = <1>;#size-cells = <1>;};};

型號列表在drivers/mtd/devices/m25p80.c文件中
這里的flash型號需要在下表之中，否則將無法識別：（注意容量也一定要對應）

static const struct spi_device_id m25p_ids[] = {/** Allow non-DT platform devices to bind to the "spi-nor" modalias, and* hack around the fact that the SPI core does not provide uevent* matching for .of_match_table*/{"spi-nor"},/** Entries not used in DTs that should be safe to drop after replacing* them with "spi-nor" in platform data.*/{"s25sl064a"}, {"w25x16"}, {"m25p10"}, {"m25px64"},/** Entries that were used in DTs without "jedec,spi-nor" fallback and* should be kept for backward compatibility.*/{"at25df321a"}, {"at25df641"}, {"at26df081a"},{"mx25l4005a"}, {"mx25l1606e"}, {"mx25l6405d"}, {"mx25l12805d"},{"mx25l25635e"},{"mx66l51235l"},{"n25q064"}, {"n25q128a11"}, {"n25q128a13"}, {"n25q512a"},{"s25fl256s1"}, {"s25fl512s"}, {"s25sl12801"}, {"s25fl008k"},{"s25fl064k"},{"sst25vf040b"},{"sst25vf016b"},{"sst25vf032b"},{"sst25wf040"},{"m25p40"}, {"m25p80"}, {"m25p16"}, {"m25p32"},{"m25p64"}, {"m25p128"},{"w25x80"}, {"w25x32"}, {"w25q32"}, {"w25q32dw"},{"w25q80bl"}, {"w25q128"}, {"w25q256"},/* Flashes that can't be detected using JEDEC */{"m25p05-nonjedec"}, {"m25p10-nonjedec"}, {"m25p20-nonjedec"},{"m25p40-nonjedec"}, {"m25p80-nonjedec"}, {"m25p16-nonjedec"},{"m25p32-nonjedec"}, {"m25p64-nonjedec"}, {"m25p128-nonjedec"},/* Everspin MRAMs (non-JEDEC) */{ "mr25h256" }, /* 256 Kib, 40 MHz */{ "mr25h10" }, /* 1 Mib, 40 MHz */{ "mr25h40" }, /* 4 Mib, 40 MHz */{ }, };

在上面我們沒有找到相應的型號，所以我們需要手動添加上去。添加完如下

static const struct spi_device_id m25p_ids[] = {/** Allow non-DT platform devices to bind to the "spi-nor" modalias, and* hack around the fact that the SPI core does not provide uevent* matching for .of_match_table*/{"spi-nor"},/** Entries not used in DTs that should be safe to drop after replacing* them with "spi-nor" in platform data.*/{"s25sl064a"}, {"w25x16"}, {"m25p10"}, {"m25px64"},/** Entries that were used in DTs without "jedec,spi-nor" fallback and* should be kept for backward compatibility.*/{"at25df321a"}, {"at25df641"}, {"at26df081a"},{"mx25l4005a"}, {"mx25l1606e"}, {"mx25l6405d"}, {"mx25l12805d"},{"mx25l25635e"},{"mx66l51235l"},{"n25q064"}, {"n25q128a11"}, {"n25q128a13"}, {"n25q512a"},{"s25fl256s1"}, {"s25fl512s"}, {"s25sl12801"}, {"s25fl008k"},{"s25fl064k"},{"sst25vf040b"},{"sst25vf016b"},{"sst25vf032b"},{"sst25wf040"},{"m25p40"}, {"m25p80"}, {"m25p16"}, {"m25p32"},{"m25p64"}, {"m25p128"},{"w25x80"}, {"w25x32"}, {"w25q32"}, {"w25q32dw"},{"w25q80bl"}, {"w25q128"}, {"xt25f128b"}, {"w25q256"},/* Flashes that can't be detected using JEDEC */{"m25p05-nonjedec"}, {"m25p10-nonjedec"}, {"m25p20-nonjedec"},{"m25p40-nonjedec"}, {"m25p80-nonjedec"}, {"m25p16-nonjedec"},{"m25p32-nonjedec"}, {"m25p64-nonjedec"}, {"m25p128-nonjedec"},/* Everspin MRAMs (non-JEDEC) */{ "mr25h256" }, /* 256 Kib, 40 MHz */{ "mr25h10" }, /* 1 Mib, 40 MHz */{ "mr25h40" }, /* 4 Mib, 40 MHz */{ }, };

然后我們添加xt25f128b flash的相關信息。
編輯drivers/mtd/spi-nor/spi-nor.c文件
添加信息如下：

{“xt25f128b”,INFO(0x0b4018, 0x0, 64 * 1024, 256, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },

static const struct flash_info spi_nor_ids[] = {/* Atmel -- some are (confusingly) marketed as "DataFlash" */{ "at25fs010", INFO(0x1f6601, 0, 32 * 1024, 4, SECT_4K) },{ "at25fs040", INFO(0x1f6604, 0, 64 * 1024, 8, SECT_4K) },{ "at25df041a", INFO(0x1f4401, 0, 64 * 1024, 8, SECT_4K) },{ "at25df321", INFO(0x1f4700, 0, 64 * 1024, 64, SECT_4K) },{ "at25df321a", INFO(0x1f4701, 0, 64 * 1024, 64, SECT_4K) },{ "at25df641", INFO(0x1f4800, 0, 64 * 1024, 128, SECT_4K) },{ "at26f004", INFO(0x1f0400, 0, 64 * 1024, 8, SECT_4K) },{ "at26df081a", INFO(0x1f4501, 0, 64 * 1024, 16, SECT_4K) },{ "at26df161a", INFO(0x1f4601, 0, 64 * 1024, 32, SECT_4K) },{ "at26df321", INFO(0x1f4700, 0, 64 * 1024, 64, SECT_4K) },{ "at45db081d", INFO(0x1f2500, 0, 64 * 1024, 16, SECT_4K) },/* EON -- en25xxx */{ "en25f32", INFO(0x1c3116, 0, 64 * 1024, 64, SECT_4K) },{ "en25p32", INFO(0x1c2016, 0, 64 * 1024, 64, 0) },{ "en25q32b", INFO(0x1c3016, 0, 64 * 1024, 64, 0) },{ "en25p64", INFO(0x1c2017, 0, 64 * 1024, 128, 0) },{ "en25q64", INFO(0x1c3017, 0, 64 * 1024, 128, SECT_4K) },{ "en25qh128", INFO(0x1c7018, 0, 64 * 1024, 256, 0) },{ "en25qh256", INFO(0x1c7019, 0, 64 * 1024, 512, 0) },{ "en25s64", INFO(0x1c3817, 0, 64 * 1024, 128, SECT_4K) },/* ESMT */{ "f25l32pa", INFO(0x8c2016, 0, 64 * 1024, 64, SECT_4K) },/* Everspin */{ "mr25h256", CAT25_INFO( 32 * 1024, 1, 256, 2, SPI_NOR_NO_ERASE | SPI_NOR_NO_FR) },{ "mr25h10", CAT25_INFO(128 * 1024, 1, 256, 3, SPI_NOR_NO_ERASE | SPI_NOR_NO_FR) },{ "mr25h40", CAT25_INFO(512 * 1024, 1, 256, 3, SPI_NOR_NO_ERASE | SPI_NOR_NO_FR) },/* Fujitsu */{ "mb85rs1mt", INFO(0x047f27, 0, 128 * 1024, 1, SPI_NOR_NO_ERASE) },/* GigaDevice */{"gd25q32", INFO(0xc84016, 0, 64 * 1024, 64,SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)},{"gd25q64", INFO(0xc84017, 0, 64 * 1024, 128,SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)},{"gd25lq64c", INFO(0xc86017, 0, 64 * 1024, 128,SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)},{"gd25q128", INFO(0xc84018, 0, 64 * 1024, 256,SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)},/* Intel/Numonyx -- xxxs33b */{ "160s33b", INFO(0x898911, 0, 64 * 1024, 32, 0) },{ "320s33b", INFO(0x898912, 0, 64 * 1024, 64, 0) },{ "640s33b", INFO(0x898913, 0, 64 * 1024, 128, 0) },/* ISSI */{ "is25cd512", INFO(0x7f9d20, 0, 32 * 1024, 2, SECT_4K) },/* Macronix */{ "mx25l512e", INFO(0xc22010, 0, 64 * 1024, 1, SECT_4K) },{ "mx25l2005a", INFO(0xc22012, 0, 64 * 1024, 4, SECT_4K) },{ "mx25l4005a", INFO(0xc22013, 0, 64 * 1024, 8, SECT_4K) },{ "mx25l8005", INFO(0xc22014, 0, 64 * 1024, 16, 0) },{ "mx25l1606e", INFO(0xc22015, 0, 64 * 1024, 32, SECT_4K) },{ "mx25l3205d", INFO(0xc22016, 0, 64 * 1024, 64, SECT_4K) },{ "mx25l3255e", INFO(0xc29e16, 0, 64 * 1024, 64, SECT_4K) },{ "mx25l6405d", INFO(0xc22017, 0, 64 * 1024, 128, SECT_4K) },{ "mx25u6435f", INFO(0xc22537, 0, 64 * 1024, 128, SECT_4K) },{ "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) },{ "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256, 0) },{ "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, 0) },{ "mx25u25635f", INFO(0xc22539, 0, 64 * 1024, 512, SECT_4K) },{ "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) },{ "mx66l51235l", INFO(0xc2201a, 0, 64 * 1024, 1024, SPI_NOR_QUAD_READ) },{ "mx66l1g55g", INFO(0xc2261b, 0, 64 * 1024, 2048, SPI_NOR_QUAD_READ) },/* Micron */{ "n25q016a", INFO(0x20bb15, 0, 64 * 1024, 32, SECT_4K | SPI_NOR_QUAD_READ) },{ "n25q032", INFO(0x20ba16, 0, 64 * 1024, 64, SPI_NOR_QUAD_READ) },{ "n25q032a", INFO(0x20bb16, 0, 64 * 1024, 64, SPI_NOR_QUAD_READ) },{ "n25q064", INFO(0x20ba17, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_QUAD_READ) },{ "n25q064a", INFO(0x20bb17, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_QUAD_READ) },{ "n25q128a11", INFO(0x20bb18, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_QUAD_READ) },{ "n25q128a13", INFO(0x20ba18, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_QUAD_READ) },{ "n25q256a", INFO(0x20ba19, 0, 64 * 1024, 512, SECT_4K | SPI_NOR_QUAD_READ) },{ "n25q512a", INFO(0x20bb20, 0, 64 * 1024, 1024, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ) },{ "n25q512ax3", INFO(0x20ba20, 0, 64 * 1024, 1024, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ) },{ "n25q00", INFO(0x20ba21, 0, 64 * 1024, 2048, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ) },{ "n25q00a", INFO(0x20bb21, 0, 64 * 1024, 2048, SECT_4K | USE_FSR | SPI_NOR_QUAD_READ) },/* PMC */{ "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K_PMC) },{ "pm25lv010", INFO(0, 0, 32 * 1024, 4, SECT_4K_PMC) },{ "pm25lq032", INFO(0x7f9d46, 0, 64 * 1024, 64, SECT_4K) },/* Spansion -- single (large) sector size only, at least* for the chips listed here (without boot sectors).*/{ "s25sl032p", INFO(0x010215, 0x4d00, 64 * 1024, 64, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },{ "s25sl064p", INFO(0x010216, 0x4d00, 64 * 1024, 128, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },{ "s25fl256s0", INFO(0x010219, 0x4d00, 256 * 1024, 128, 0) },{ "s25fl256s1", INFO(0x010219, 0x4d01, 64 * 1024, 512, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },{ "s25fl512s", INFO(0x010220, 0x4d00, 256 * 1024, 256, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },{ "s70fl01gs", INFO(0x010221, 0x4d00, 256 * 1024, 256, 0) },{ "s25sl12800", INFO(0x012018, 0x0300, 256 * 1024, 64, 0) },{ "s25sl12801", INFO(0x012018, 0x0301, 64 * 1024, 256, 0) },{ "s25fl128s", INFO6(0x012018, 0x4d0180, 64 * 1024, 256, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },{ "s25fl129p0", INFO(0x012018, 0x4d00, 256 * 1024, 64, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },{ "s25fl129p1", INFO(0x012018, 0x4d01, 64 * 1024, 256, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },{ "s25sl004a", INFO(0x010212, 0, 64 * 1024, 8, 0) },{ "s25sl008a", INFO(0x010213, 0, 64 * 1024, 16, 0) },{ "s25sl016a", INFO(0x010214, 0, 64 * 1024, 32, 0) },{ "s25sl032a", INFO(0x010215, 0, 64 * 1024, 64, 0) },{ "s25sl064a", INFO(0x010216, 0, 64 * 1024, 128, 0) },{ "s25fl004k", INFO(0xef4013, 0, 64 * 1024, 8, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },{ "s25fl008k", INFO(0xef4014, 0, 64 * 1024, 16, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },{ "s25fl016k", INFO(0xef4015, 0, 64 * 1024, 32, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },{ "s25fl064k", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) },{ "s25fl116k", INFO(0x014015, 0, 64 * 1024, 32, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },{ "s25fl132k", INFO(0x014016, 0, 64 * 1024, 64, SECT_4K) },{ "s25fl164k", INFO(0x014017, 0, 64 * 1024, 128, SECT_4K) },{ "s25fl204k", INFO(0x014013, 0, 64 * 1024, 8, SECT_4K | SPI_NOR_DUAL_READ) },{ "s25fl208k", INFO(0x014014, 0, 64 * 1024, 16, SECT_4K | SPI_NOR_DUAL_READ) },/* SST -- large erase sizes are "overlays", "sectors" are 4K */{ "sst25vf040b", INFO(0xbf258d, 0, 64 * 1024, 8, SECT_4K | SST_WRITE) },{ "sst25vf080b", INFO(0xbf258e, 0, 64 * 1024, 16, SECT_4K | SST_WRITE) },{ "sst25vf016b", INFO(0xbf2541, 0, 64 * 1024, 32, SECT_4K | SST_WRITE) },{ "sst25vf032b", INFO(0xbf254a, 0, 64 * 1024, 64, SECT_4K | SST_WRITE) },{ "sst25vf064c", INFO(0xbf254b, 0, 64 * 1024, 128, SECT_4K) },{ "sst25wf512", INFO(0xbf2501, 0, 64 * 1024, 1, SECT_4K | SST_WRITE) },{ "sst25wf010", INFO(0xbf2502, 0, 64 * 1024, 2, SECT_4K | SST_WRITE) },{ "sst25wf020", INFO(0xbf2503, 0, 64 * 1024, 4, SECT_4K | SST_WRITE) },{ "sst25wf020a", INFO(0x621612, 0, 64 * 1024, 4, SECT_4K) },{ "sst25wf040b", INFO(0x621613, 0, 64 * 1024, 8, SECT_4K) },{ "sst25wf040", INFO(0xbf2504, 0, 64 * 1024, 8, SECT_4K | SST_WRITE) },{ "sst25wf080", INFO(0xbf2505, 0, 64 * 1024, 16, SECT_4K | SST_WRITE) },/* ST Microelectronics -- newer production may have feature updates */{ "m25p05", INFO(0x202010, 0, 32 * 1024, 2, 0) },{ "m25p10", INFO(0x202011, 0, 32 * 1024, 4, 0) },{ "m25p20", INFO(0x202012, 0, 64 * 1024, 4, 0) },{ "m25p40", INFO(0x202013, 0, 64 * 1024, 8, 0) },{ "m25p80", INFO(0x202014, 0, 64 * 1024, 16, 0) },{ "m25p16", INFO(0x202015, 0, 64 * 1024, 32, 0) },{ "m25p32", INFO(0x202016, 0, 64 * 1024, 64, 0) },{ "m25p64", INFO(0x202017, 0, 64 * 1024, 128, 0) },{ "m25p128", INFO(0x202018, 0, 256 * 1024, 64, 0) },{ "m25p05-nonjedec", INFO(0, 0, 32 * 1024, 2, 0) },{ "m25p10-nonjedec", INFO(0, 0, 32 * 1024, 4, 0) },{ "m25p20-nonjedec", INFO(0, 0, 64 * 1024, 4, 0) },{ "m25p40-nonjedec", INFO(0, 0, 64 * 1024, 8, 0) },{ "m25p80-nonjedec", INFO(0, 0, 64 * 1024, 16, 0) },{ "m25p16-nonjedec", INFO(0, 0, 64 * 1024, 32, 0) },{ "m25p32-nonjedec", INFO(0, 0, 64 * 1024, 64, 0) },{ "m25p64-nonjedec", INFO(0, 0, 64 * 1024, 128, 0) },{ "m25p128-nonjedec", INFO(0, 0, 256 * 1024, 64, 0) },{ "m45pe10", INFO(0x204011, 0, 64 * 1024, 2, 0) },{ "m45pe80", INFO(0x204014, 0, 64 * 1024, 16, 0) },{ "m45pe16", INFO(0x204015, 0, 64 * 1024, 32, 0) },{ "m25pe20", INFO(0x208012, 0, 64 * 1024, 4, 0) },{ "m25pe80", INFO(0x208014, 0, 64 * 1024, 16, 0) },{ "m25pe16", INFO(0x208015, 0, 64 * 1024, 32, SECT_4K) },{ "m25px16", INFO(0x207115, 0, 64 * 1024, 32, SECT_4K) },{ "m25px32", INFO(0x207116, 0, 64 * 1024, 64, SECT_4K) },{ "m25px32-s0", INFO(0x207316, 0, 64 * 1024, 64, SECT_4K) },{ "m25px32-s1", INFO(0x206316, 0, 64 * 1024, 64, SECT_4K) },{ "m25px64", INFO(0x207117, 0, 64 * 1024, 128, 0) },{ "m25px80", INFO(0x207114, 0, 64 * 1024, 16, 0) },/* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */{ "w25x05", INFO(0xef3010, 0, 64 * 1024, 1, SECT_4K) },{ "w25x10", INFO(0xef3011, 0, 64 * 1024, 2, SECT_4K) },{ "w25x20", INFO(0xef3012, 0, 64 * 1024, 4, SECT_4K) },{ "w25x40", INFO(0xef3013, 0, 64 * 1024, 8, SECT_4K) },{ "w25x80", INFO(0xef3014, 0, 64 * 1024, 16, SECT_4K) },{ "w25x16", INFO(0xef3015, 0, 64 * 1024, 32, SECT_4K) },{ "w25x32", INFO(0xef3016, 0, 64 * 1024, 64, SECT_4K) },{ "w25q32", INFO(0xef4016, 0, 64 * 1024, 64, SECT_4K) },{"w25q32dw", INFO(0xef6016, 0, 64 * 1024, 64,SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)},{ "w25x64", INFO(0xef3017, 0, 64 * 1024, 128, SECT_4K) },{ "w25q64", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) },{"w25q64dw", INFO(0xef6017, 0, 64 * 1024, 128,SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)},{"w25q128fw", INFO(0xef6018, 0, 64 * 1024, 256,SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)},{ "w25q80", INFO(0xef5014, 0, 64 * 1024, 16, SECT_4K) },{ "w25q80bl", INFO(0xef4014, 0, 64 * 1024, 16, SECT_4K) },{ "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) },{"xt25f128b",INFO(0x0b4018, 0x0, 64 * 1024, 256, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },{ "w25q256", INFO(0xef4019, 0, 64 * 1024, 512, SECT_4K) },/* Catalyst / On Semiconductor -- non-JEDEC */{ "cat25c11", CAT25_INFO( 16, 8, 16, 1, SPI_NOR_NO_ERASE | SPI_NOR_NO_FR) },{ "cat25c03", CAT25_INFO( 32, 8, 16, 2, SPI_NOR_NO_ERASE | SPI_NOR_NO_FR) },{ "cat25c09", CAT25_INFO( 128, 8, 32, 2, SPI_NOR_NO_ERASE | SPI_NOR_NO_FR) },{ "cat25c17", CAT25_INFO( 256, 8, 32, 2, SPI_NOR_NO_ERASE | SPI_NOR_NO_FR) },{ "cat25128", CAT25_INFO(2048, 8, 64, 2, SPI_NOR_NO_ERASE | SPI_NOR_NO_FR) },{ }, };

開始編譯

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j32 make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- dtbs

準備鏡像文件

下載根文件系統

首先選擇rootfs文件系統，我是用的是群朋提供的最小根文件系統
rootfs-brmin.tar.gz，大小只有3M左右，我已經制作好了jff2.img，可以直接使用下載地址在

https://download.csdn.net/download/weixin_41869691/16291690

制作jffs2文件系統

Flash支持jffs2文件系統格式，所以需要使用此該rootfs制作jffs2文件系統鏡像、

下載jffs2文件系統制作工具

apt-get install mtd-utils

解壓 rootfs-brmin.tar.gz

tar xzvf rootfs-brmin.tar.gz

計算好jffs的大小，可以使用zero_imager里的 make_jffs2.sh 16 生成

總空間是16M-1M-64K-4M=0xAF0000

mkfs.jffs2 -s 0x100 -e 0x10000 -p 0xAF0000 -d rootfs/ -o jffs2.img

頁大小0x100 256字節
塊大小0x10000 64k
jffs2分區總空間0xAF0000
jffs2.img是生成的文件系統鏡像。

最后將uboot，dtb，kernel，rootfs打包成一個系統鏡像，命令如下；

#!/bin/sh dd if=/dev/zero of=flashimg.bin bs=1M count=16 dd if=u-boot-sunxi-with-spl.bin of=flashimg.bin bs=1K conv=notrunc dd if=sun8i-v3s-licheepi-zero.dtb of=flashimg.bin bs=1K seek=1024 conv=notrunc dd if=zImage of=flashimg.bin bs=1K seek=1088 conv=notrunc dd if=jffs2.img of=flashimg.bin bs=1K seek=5184 conv=notrunc

第一步：生成一個空文件，大小是16MB
第二步：將uboot添加到文件開頭
第三步：將dtb放到1M偏移處
第四步：將kernel放到1M+64K偏移處

第五步：將rootfs放到1M+64K+4M偏移處

偏移大小是seek，單位是KB。

執行完畢后生成鏡像文件 flashimg.bin

燒寫鏡像

下載sunxiflash燒寫工具

git clone -b spi-rebase https://github.com/Icenowy/sunxi-tools.git

note

注意是spi-rebase分支。

進入工具目錄執行 make && sudo make install

如果出現：*fel_lib.c:26:20: fatal error: libusb.h: No such file or
directory*，那需要安裝libusb：

sudo apt-get install libusb-1.0-0-dev

進入fel模式

Zero有一個usb下載模式稱為fel模式，進入fel模式有下面幾種方式：

TF卡和spi flash 同時沒有可啟動鏡像;

也就是說你不插卡，且焊接的是新的或者沒有有效鏡像的spi
flash，那就上電自動進入fel下載模式

TF卡中有進入fel模式的特殊固件 fel-sdboot.sunxi

如果你的spiflash已經有了啟動鏡像，那么需要在TF卡中燒入一個sunxi提供的
啟動工具（
dd if=fel-sdboot.sunxi of=/dev/mmcblk0 bs=1024 seek=8 ），
那么插入該TF卡啟動會進入fel模式；

上電時SPI_MISO拉低到地

該引腳為boot引腳，上電時出于低電平即會進入fel下載模式。

sunxi-fel的操作

進入fel模式后使用usb數據線連接pc和zero,即可進行操作。

sudo sunxi-fel version #查看連接的cpu信息 AWUSBFEX soc=00001681(V3s) 00000001 ver=0001 44 08 scratchpad=00007e00 00000000 00000000 sudo sunxi-fel spiflash-info #顯示flash信息 Manufacturer: Unknown (C2h), model: 20h, size: 33554432 bytes.

執行如下命令燒入我們前邊制作好的鏡像文件

sudo sunxi-fel -p spiflash-write 0 flashimg.bin # -p 顯示進度條 # spiflash-info Retrieves basic information # spiflash-hex[dump] addr length Dumps SPI flash region in hex # spiflash-read addr length file Write SPI flash contents into file # spiflash-write addr file Store file contents into SPI flash

SPI flash下載速度約50KB/s，等待5分鐘（16MB）或者10分鐘（32MB），燒寫完成，如果一切順利，重新上電zero那么就會進入linux系統了，賬號是root沒有密碼。

附錄：啟動日志

U-Boot SPL 2017.01-rc2-00073-gdd6e8740dc-dirty (Mar 28 2021 - 01:54:30) DRAM: 64 MiB Trying to boot from sunxi SPIU-Boot 2017.01-rc2-00073-gdd6e8740dc-dirty (Mar 28 2021 - 01:54:30 +0800) Allwinner TechnologyCPU: Allwinner V3s (SUN8I 1681) Model: Lichee Pi Zero DRAM: 64 MiB MMC: SUNXI SD/MMC: 0 SF: Detected xt25f128b with page size 256 Bytes, erase size 4 KiB, total 16 MiB *** Warning - bad CRC, using default environmentIn: serial@01c28000 Out: serial@01c28000 Err: serial@01c28000U-Boot 2017.01-rc2-00073-gdd6e8740dc-dirty (Mar 28 2021 - 01:54:30 +0800) Allwinner TechnologyCPU: Allwinner V3s (SUN8I 1681) Model: Lichee Pi Zero DRAM: 64 MiB MMC: SUNXI SD/MMC: 0 SF: Detected xt25f128b with page size 256 Bytes, erase size 4 KiB, total 16 MiB *** Warning - bad CRC, using default environmentIn: serial@01c28000 Out: serial@01c28000 Err: serial@01c28000 Net: No ethernet found. starting USB... No controllers found Hit any key to stop autoboot: 0 SF: Detected xt25f128b with page size 256 Bytes, erase size 4 KiB, total 16 MiB device 0 offset 0x100000, size 0x10000 SF: 65536 bytes @ 0x100000 Read: OK device 0 offset 0x110000, size 0x400000 SF: 4194304 bytes @ 0x110000 Read: OK ## Flattened Device Tree blob at 41800000Booting using the fdt blob at 0x41800000Loading Device Tree to 42dfa000, end 42dff206 ... OKStarting kernel ...[ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 4.10.15-licheepi-zero+ (nihao@nihao-XiaoXin) (gcc version 6.3.1 20170404 (Linaro GCC 6.3-2017.05) ) #6 SMP Sun Mar 28 08:51:06 CST 2021 [ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d [ 0.000000] CPU: div instructions available: patching division code [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache [ 0.000000] OF: fdt:Machine model: Lichee Pi Zero [ 0.000000] Memory policy: Data cache writealloc [ 0.000000] percpu: Embedded 14 pages/cpu @c3f63000 s24716 r8192 d24436 u57344 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256 [ 0.000000] Kernel command line: console=ttyS0,115200 earlyprintk panic=5 rootwait mtdparts=spi32766.0:1M(uboot)ro,64k(dtb)ro,4M(kernel)ro,-(rootfs) root=31:03 rw rootfstype=jffs2 [ 0.000000] PID hash table entries: 256 (order: -2, 1024 bytes) [ 0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) [ 0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) [ 0.000000] Memory: 55152K/65536K available (6144K kernel code, 199K rwdata, 1412K rodata, 1024K init, 262K bss, 10384K reserved, 0K cma-reserved, 0K highmem) [ 0.000000] Virtual kernel memory layout: [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB) [ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB) [ 0.000000] vmalloc : 0xc4800000 - 0xff800000 ( 944 MB) [ 0.000000] lowmem : 0xc0000000 - 0xc4000000 ( 64 MB) [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) [ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB) [ 0.000000] .text : 0xc0008000 - 0xc0700000 (7136 kB) [ 0.000000] .init : 0xc0900000 - 0xc0a00000 (1024 kB) [ 0.000000] .data : 0xc0a00000 - 0xc0a31f00 ( 200 kB) [ 0.000000] .bss : 0xc0a33000 - 0xc0a7484c ( 263 kB) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] Build-time adjustment of leaf fanout to 32. [ 0.000000] RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=1 [ 0.000000] NR_IRQS:16 nr_irqs:16 16 [ 0.000000] arm_arch_timer: Architected cp15 timer(s) running at 24.00MHz (virt). [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns [ 0.000007] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns [ 0.000018] Switching to timer-based delay loop, resolution 41ns [ 0.000138] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns [ 0.000343] Console: colour dummy device 80x30 [ 0.000379] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000) [ 0.000393] pid_max: default: 32768 minimum: 301 [ 0.000528] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes) [ 0.000539] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes) [ 0.001231] CPU: Testing write buffer coherency: ok [ 0.001634] /cpus/cpu@0 missing clock-frequency property [ 0.001658] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 0.002018] Setting up static identity map for 0x40100000 - 0x40100058 [ 0.002763] smp: Bringing up secondary CPUs ... [ 0.002781] smp: Brought up 1 node, 1 CPU [ 0.002790] SMP: Total of 1 processors activated (48.00 BogoMIPS). [ 0.002797] CPU: All CPU(s) started in SVC mode. [ 0.003584] devtmpfs: initialized [ 0.006342] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5 [ 0.006638] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.006665] futex hash table entries: 256 (order: 2, 16384 bytes) [ 0.006819] pinctrl core: initialized pinctrl subsystem [ 0.007825] NET: Registered protocol family 16 [ 0.008277] DMA: preallocated 256 KiB pool for atomic coherent allocations [ 0.009494] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers. [ 0.009510] hw-breakpoint: maximum watchpoint size is 8 bytes. [ 0.020909] SCSI subsystem initialized [ 0.021188] usbcore: registered new interface driver usbfs [ 0.021249] usbcore: registered new interface driver hub [ 0.021344] usbcore: registered new device driver usb [ 0.021581] pps_core: LinuxPPS API ver. 1 registered [ 0.021591] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it> [ 0.021614] PTP clock support registered [ 0.021817] Advanced Linux Sound Architecture Driver Initialized. [ 0.023618] clocksource: Switched to clocksource arch_sys_counter [ 0.034049] NET: Registered protocol family 2 [ 0.034678] TCP established hash table entries: 1024 (order: 0, 4096 bytes) [ 0.034710] TCP bind hash table entries: 1024 (order: 1, 8192 bytes) [ 0.034734] TCP: Hash tables configured (established 1024 bind 1024) [ 0.034821] UDP hash table entries: 256 (order: 1, 8192 bytes) [ 0.034868] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes) [ 0.035077] NET: Registered protocol family 1 [ 0.035696] RPC: Registered named UNIX socket transport module. [ 0.035716] RPC: Registered udp transport module. [ 0.035721] RPC: Registered tcp transport module. [ 0.035727] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.037888] workingset: timestamp_bits=30 max_order=14 bucket_order=0 [ 0.046839] NFS: Registering the id_resolver key type [ 0.046892] Key type id_resolver registered [ 0.046899] Key type id_legacy registered [ 0.046946] jffs2: version 2.2. (NAND) ? 2001-2006 Red Hat, Inc. [ 0.051417] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249) [ 0.051438] io scheduler noop registered [ 0.051445] io scheduler deadline registered [ 0.051651] io scheduler cfq registered (default) [ 0.055818] sun8i-v3s-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver [ 0.123327] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled [ 0.126634] console [ttyS0] disabled [ 0.146912] 1c28000.serial: ttyS0 at MMIO 0x1c28000 (irq = 31, base_baud = 1500000) is a U6_16550A [ 0.711492] console [ttyS0] enabled [ 0.715681] [drm] Initialized [ 0.721398] m25p80 spi32766.0: xt25f128b (16384 Kbytes) [ 0.726750] 4 cmdlinepart partitions found on MTD device spi32766.0 [ 0.733012] Creating 4 MTD partitions on "spi32766.0": [ 0.738182] 0x000000000000-0x000000100000 : "uboot" [ 0.743783] 0x000000100000-0x000000110000 : "dtb" [ 0.748907] 0x000000110000-0x000000510000 : "kernel" [ 0.754338] 0x000000510000-0x000001000000 : "rootfs" [ 0.760036] libphy: Fixed MDIO Bus: probed [ 0.764482] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 0.771009] ehci-platform: EHCI generic platform driver [ 0.776367] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.782564] ohci-platform: OHCI generic platform driver [ 0.788269] udc-core: couldn't find an available UDC - added [g_cdc] to list of pending drivers [ 0.797943] sun6i-rtc 1c20400.rtc: rtc core: registered rtc-sun6i as rtc0 [ 0.804824] sun6i-rtc 1c20400.rtc: RTC enabled [ 0.809359] i2c /dev entries driver [ 0.814225] input: ns2009_ts as /devices/platform/soc/1c2ac00.i2c/i2c-0/0-0048/input/input0 [ 0.823891] sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0) [ 0.883660] sunxi-mmc 1c0f000.mmc: base:0xc48ae000 irq:23 [ 0.889996] usbcore: registered new interface driver usbhid [ 0.895655] usbhid: USB HID core driver [ 0.901162] NET: Registered protocol family 17 [ 0.905844] Key type dns_resolver registered [ 0.910261] Registering SWP/SWPB emulation handler [ 0.921360] usb_phy_generic.0.auto supply vcc not found, using dummy regulator [ 0.929304] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver [ 0.935148] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 1 [ 0.946351] hub 1-0:1.0: USB hub found [ 0.950215] hub 1-0:1.0: 1 port detected [ 0.955007] using random self ethernet address [ 0.959500] using random host ethernet address [ 0.965051] usb0: HOST MAC 0a:4c:0a:fb:ad:c7 [ 0.969383] usb0: MAC 36:23:1c:5c:34:1c [ 0.973259] g_cdc gadget: CDC Composite Gadget, version: King Kamehameha Day 2008 [ 0.980840] g_cdc gadget: g_cdc ready [ 0.984859] sun6i-rtc 1c20400.rtc: setting system clock to 1970-01-01 00:00:23 UTC (23) [ 0.993097] vcc3v0: disabling [ 0.996144] vcc5v0: disabling [ 0.999113] ALSA device list: [ 1.002075] No soundcards found. [ 1.007541] random: fast init done [ 1.049938] random: crng init done [ 1.580278] VFS: Mounted root (jffs2 filesystem) on device 31:3. [ 1.587278] devtmpfs: mounted [ 1.591420] Freeing unused kernel memory: 1024K Starting logging: OK Starting mdev... modprobe: can't change directory to '/lib/modules': No such file or directory [ 5.688048] ------------[ cut here ]------------ [ 5.692711] WARNING: CPU: 0 PID: 86 at drivers/mtd/spi-nor/spi-nor.c:1183 spi_nor_write+0x138/0x1b4 [ 5.701820] Writing at offset 216 into a NOR page. Writing partial pages may decrease reliability and increase wear of NOR flash. [ 5.701825] Modules linked in: [ 5.716550] CPU: 0 PID: 86 Comm: touch Not tainted 4.10.15-licheepi-zero+ #6 [ 5.723585] Hardware name: Allwinner sun8i Family [ 5.728313] [<c010e2fc>] (unwind_backtrace) from [<c010b098>] (show_stack+0x10/0x14) [ 5.736055] [<c010b098>] (show_stack) from [<c03465c4>] (dump_stack+0x84/0x98) [ 5.743277] [<c03465c4>] (dump_stack) from [<c011b634>] (__warn+0xe8/0x100) [ 5.750235] [<c011b634>] (__warn) from [<c011b684>] (warn_slowpath_fmt+0x38/0x48) [ 5.757715] [<c011b684>] (warn_slowpath_fmt) from [<c0452fbc>] (spi_nor_write+0x138/0x1b4) [ 5.765973] [<c0452fbc>] (spi_nor_write) from [<c044b454>] (mtd_writev+0xa4/0xec) [ 5.773456] [<c044b454>] (mtd_writev) from [<c02fbec8>] (jffs2_flash_writev+0x414/0x4b0) [ 5.781541] [<c02fbec8>] (jffs2_flash_writev) from [<c02f4d48>] (jffs2_write_dnode+0xd4/0x328) [ 5.790145] [<c02f4d48>] (jffs2_write_dnode) from [<c02f9458>] (jffs2_do_setattr+0x280/0x558) [ 5.798661] [<c02f9458>] (jffs2_do_setattr) from [<c02f9754>] (jffs2_setattr+0x24/0x48) [ 5.806660] [<c02f9754>] (jffs2_setattr) from [<c020d990>] (notify_change+0x1c4/0x3d0) [ 5.814572] [<c020d990>] (notify_change) from [<c021e65c>] (utimes_common+0xa8/0x170) [ 5.822394] [<c021e65c>] (utimes_common) from [<c021e7d4>] (do_utimes+0xb0/0x144) [ 5.829869] [<c021e7d4>] (do_utimes) from [<c021ea10>] (SyS_futimesat+0xd0/0xfc) [ 5.837259] [<c021ea10>] (SyS_futimesat) from [<c0107580>] (ret_fast_syscall+0x0/0x3c) [ 5.845234] ---[ end trace d947ef19d0d7cd8d ]--- Initializing random number generator... done. Starting network: OKWelcome to Lichee Pi Lichee login:

附錄：sunxi-fel幫助說明

sunxi-fel v1.4.1-87-g78a7566Usage: sunxi-fel [options] command arguments--- [command---]-h, --help Print this usage summary and exit-v, --verbose Verbose logging-p, --progress "write" transfers show a progress bar-l, --list Enumerate all (USB) FEL devices and exit-d, --dev bus:devnum Use specific USB bus and device number--sid SID Select device by SID key (exact match)spl file Load and execute U-Boot SPLIf file additionally contains a main U-Boot binary(u-boot-sunxi-with-spl.bin), this command also transfers thatto memory (default address from image), but won't execute it.uboot file-with-spl like "spl", but actually starts U-BootU-Boot execution will take place when the fel utility exits.This allows combining "uboot" with further "write" commands(to transfer other files needed for the boot).hex[dump] address length Dumps memory region in hexdump address length Binary memory dumpexe[cute] address Call function addressreset64 address RMR request for AArch64 warm bootmemmove dest source size Copy <size> bytes within device memoryreadl address Read 32-bit value from device memorywritel address value Write 32-bit value to device memoryread address length file Write memory contents into filewrite address file Store file contents into memorywrite-with-progress addr file "write" with progress barwrite-with-gauge addr file Output progress for "dialog --gauge"write-with-xgauge addr file Extended gauge output (updates prompt)multi[write] # addr file --- "write-with-progress" multiple files,sharing a common progress statusmulti[write]-with-gauge --- like their "write-with-*" counterpart,multi[write]-with-xgauge --- but following the 'multi' syntax:<#> addr file [addr file [---]]echo-gauge "some text" Update prompt/caption for gauge outputver[sion] Show BROM versionsid Retrieve and output 128-bit SID keyclear address length Clear memoryfill address length value Fill memoryspiflash-info Retrieves basic informationspiflash-hex[dump] addr length Dumps SPI flash region in hexspiflash-read addr length file Write SPI flash contents into filespiflash-write addr file Store file contents into SPI flash

參考資料

http://blog.sina.com.cn/s/blog_5ed5a1f40100f3qq.html

總結

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