嵌入式

#嵌入式Linux最小系统移植# mini2440内核4.0.8移植记录

2019-07-12 15:57发布

站内文章 / 嵌入式Linux
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/*移植内核Linux4.0.8*/ 1.机器码匹配（linux/arch/arm/tools/mach-types） # machine_is_xxx CONFIG_xxxx MACH_TYPE_xxx number mini2440 MACH_MINI2440 MINI2440 1999 oluan2440 MACH_OLUAN2440 OLUAN2440 1999 MACH_TYPE_xxx 与MACHINE_START中匹配 CONFIG_xxxx 与linux/arch/arm/mach-s3c2440中的Kconfig、Makefile匹配 2.修改：MACHINE_START(S3C2440, "SMDK2440") 为： MACHINE_START(OLUAN, "Hello Hulin oluan!") 3.修改晶振频率: s3c2440_init_clocks(12000000); //友善之臂开发板晶振频率为12MHz 4.修改Makefile和Kconfig 修改Kconfig，添加 config MACH_OLUAN2440 bool "OLUAN2440 Test Hello xiaozeng" select EEPROM_AT24 if I2C select LEDS_CLASS select LEDS_TRIGGERS select LEDS_TRIGGER_BACKLIGHT select NEW_LEDS select S3C_DEV_NAND select S3C_DEV_USB_HOST select S3C_SETUP_CAMIF help Say Y here to select support for the MINI2440. Is a 10cm x 10cm board available via various sources. It can come with a 3.5" or 7" touch LCD. 5.make mini2440_defconfig 6.make menuconfig 配置system type 7.make zImage 移植出错：“MACH_TYPE_OLUAN” undeclared here (not in a function) 解决： MACHINE_START(OLUAN, "Hello Hulin oluan!")写错 该写为 (OLUAN2440, "Hello Hulin oluan!") 再次make zImage （等待较长时间...） Kernel: arch/arm/boot/zImage is ready 大小：2.8 MB 8.将zImage烧入开发板，错误：no os found 将fs_mini一并烧入开发板，错误：串口信息停止在Load Kernel... 9.在移植内核中修改Nand Flash分区表 /*下面开始分析smdk2440_machine_init(void)*/ 1.添加 2.make menuconfig 3.make zImage 编译错误：undefined reference to 'smdk_machine_init' 解决： 注释: //smdk_machine_init() 自己添加相关函数： s3c_nand_set_platdata(&oluan2440_nand_info); platform_add_devices(oluan_devices, ARRAY_SIZE(oluan_devices)); 编译错误：arch/arm/mach-s3c24xx/mach-oluan2440.c:214: error: array type has incomplete element type arch/arm/mach-s3c24xx/mach-oluan2440.c:215: error: array index in non-array initializer 解决： 添加头文件： #include #include 4.Kernel: arch/arm/boot/zImage is ready 大小：2.8 MB 5.将fs_mini一并烧入开发板，错误仍然为：串口信息停止在Load Kernel... /*换了开源的uboot E:嵌入式Linux【申嵌培训】u-boot移植与开发班 【申嵌培训】u-boot实战移植篇srcu-boot-2010.03-embedclub-menuu-boot-2010.03 */ 1.make uImage 编译错误："mkimage" command not found - U-Boot images will not be built 解决： mkimage bash: mkimage: 未找到命令... 安装软件包“uboot-tools”以提供命令“mkimage”？ [N/y] y 2.make uImage Image Name: Linux-4.0.8 Created: Mon Dec 5 02:38:32 2016 Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 2772696 Bytes = 2707.71 kB = 2.64 MB Load Address: 30008000 Entry Point: 30008000 Image arch/arm/boot/uImage is ready 3.把uImage(linux4.0.8)烧入开发板 [u-boot@SMDK2440A]# bootm ## Booting kernel from Legacy Image at 30008000 ... Image Name: Linux-4.0.8 Created: 2016-12-04 18:38:32 UTC Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 2772696 Bytes = 2.6 MB Load Address: 30008000 Entry Point: 30008000 Verifying Checksum ... OK XIP Kernel Image ... OK OK Starting kernel ... data abort pc : [<30008008>] lr : [<33fa6cac>] sp : 33f3d64c ip : 00000000 fp : 30008000 r10: 33fc4008 r9 : 000007cf r8 : 33f3ffe0 r7 : 33f3ffc4 r6 : 33f412ad r5 : 30000100 r4 : 00000000 r3 : 00000000 r2 : 30000100 r1 : 000007cf r0 : 00000000 Flags: nzCv IRQs off FIQs off Mode SVC_32 Resetting CPU ... resetting ... 解决：手动法：http://blog.csdn.net/zgrjkflmkyc/article/details/8975750 自动法：http://blog.chinaunix.net/uid-28382924-id-3421282.html 4.内核正常启动信息： ## Booting kernel from Legacy Image at 30008000 ... Image Name: Linux kernel www.embedclub.com Created: 2011-08-17 6:24:43 UTC Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 2266616 Bytes = 2.2 MB Load Address: 30008000 Entry Point: 30008040 Verifying Checksum ... OK XIP Kernel Image ... OK OK Starting kernel ... Uncompressing Linux..................................................... .............................................. done, booting the kernel. 5.出错： Starting kernel ... 之后串口输出全是乱码 解决： 修改串口波特率 set bootargs noinitrd root=/dev/mtdblock3 rootfstype=yaffs2 init=/linuxrc console=ttySAC0,115200 save 出错： ftl_cs: FTL header not found的解决办法 解决： http://blog.chinaunix.net/uid-20665047-id-3451562.html 出错： 企鹅图标没有 6. 挂载root时候出错： end_request: I/O error, dev mtdblock3, sector 0 Buffer I/O error on device mtdblock3, logical block 0 end_request: I/O error, dev mtdblock3, sector 0 Buffer I/O error on device mtdblock3, logical block 0 end_request: I/O error, dev mtdblock3, sector 8 解决：Kernel command line: 出错 bootargs noinitrd root=/dev/mtdblock4 rootfstype=yaffs2 init=/linuxrc console=ttySAC0,115200 少了rootfstype 在uboot下 set bootargs noinitrd root=/dev/mtdblock3 rootfstype=yaffs2 init=/linuxrc console=ttySAC0,115200;save 7. 烧写内核： nand erase 0x60000 0x500000; nand write 0x30008000 0x60000 0x500000 烧写root： nand erase 0x560000 $filesize; nand write.yaffs 0x30008000 0x560000 $filesize 出错：VFS: Cannot open root device "mtdblock3" or unknown-block(31,3): error -19 Please append a correct "root=" boot option; here are the available partitions: 解决：给内核打上yaffs2补丁 8.打yaffs2补丁 # git clone git://www.aleph1.co.uk/yaffs2 # cd yaffs2/ # ./patch-ker.sh c /home/invoker/akernel4.0/linux-4.0.8 # make menuconfig 将添加yaffs2至内核 # make uImage 出错：In function 'yaffs_readpage_nolock': //http://www.2cto.com/kf/201608/533812.html struct file has no member named 'f_dentry' 解决：在yaffs_vfs.c中添加： #define f_dentry f_path.dentry #define f_vfsmnt f_path.mnt 出错：fs/yaffs2/yaffs_endian.h:31: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'swap_loff_t' 解决：在yaffs_endian.h中添加： #ifndef Y_LOFF_T #define Y_LOFF_T loff_t #endif 出错：conflicting types for 'nval_del' 解决：error: conflicting types for ‘nval_del’,查看nval_del几个函数,这里我看不出有什么类型冲突错误, 网上搜了下主要是第一个WARNING那里引起的. 在yaffs_nameval.h中,结构体struct yaffs_dev的定义出现在参数列表中, 而在此之前没有定义,这样会导致函数不识别这个结构体引发上面的错误, 查询了下struct yaffs_dev在”yaffs_guts.h”中被定义, 因此在yaffs_nameval.h文件中include下”yaffs_guts.h”就OK了 出错：yaffs_guts.c:line: undefined reference to function 解决：在Makefile下面添加：yaffs-y += yaffs_endian.o 9. make uImage 烧写内核： nand erase 0x60000 0x500000; nand write 0x30008000 0x60000 0x500000 烧写root： usbslave 1 0x30008000;nand erase 0x560000 $filesize; nand write.yaffs 0x30008000 0x560000 $filesize 10. 成功加载yaffs2根文件系统 Please press Enter to activate this console. starting pid 768, tty '/dev/ttySAC0': '/bin/sh' 11. 烧写自己制作的first_fs.yaffs2后 出错：Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004 解决：kernel 编译的时候，没有选中 EABI　选项 12.make menuconfig 选中EABI make uImage 烧入开发板后，启动... Please press Enter to activate this console 出错：编译linux4.0.8 mach-mini2440时遇到no machine record defined错误的解决方法 解决：http://blog.chinaunix.net/uid-21868349-id-1813595.html static void __init smdk2440_machine_init(void) { s3c24xx_fb_set_platdata(&smdk2440_fb_info); s3c_i2c0_set_platdata(NULL); platform_add_devices(smdk2440_devices, ARRAY_SIZE(smdk2440_devices)); smdk_machine_init(); } smdk_machine_init(linux/arch/arm/mach-s3c244xx/common-smdk.c) void __init smdk_machine_init(void) { /* Configure the LEDs (even if we have no LED support)*/ int ret = gpio_request_array(smdk_led_gpios, ARRAY_SIZE(smdk_led_gpios)); if (!WARN_ON(ret < 0)) gpio_free_array(smdk_led_gpios, ARRAY_SIZE(smdk_led_gpios)); if (machine_is_smdk2443()) smdk_nand_info.twrph0 = 50; s3c_nand_set_platdata(&smdk_nand_info); platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs)); s3c_pm_init(); } static struct platform_device *smdk2440_devices[] __initdata = { &s3c_device_ohci, &s3c_device_lcd, &s3c_device_wdt, &s3c_device_i2c0, &s3c_device_iis, };

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