S3C-2416 kernel （linux-2.6.35-rc3）编译过程 -

一、编译错误更改

本文引用地址: http://www.21ic.com/app/mcu/201807/784549.htm

1.linux-2.6.35-rc3archarmmach-s3c2416kconfig中增加：

config MACH_SMDK2416

bool "SMDK2416"

select CPU_S3C2416

select S3C_DEV_FB

select S3C_DEV_NAND#add by ltls

select S3C_DEV_USB_HOST#add by ltls

select S3C_DEV_SMDK #add by ltls

select S3C_DEV_HSMMC

select S3C_DEV_HSMMC1

help

Say Y here if you are using an SMDK2416

目的：linux-2.6.35-rc3archarmmach-s3c2416makefile文件：

obj-$(CONFIG_S3C_DEV_USB_HOST)+= dev-usb.o

等相应的宏打开

2. linux-2.6.35-rc3archarmplat-s3c24xxkconfig中增加：

config MACH_SMDK

bool

default y #add by ltls

help

Common machine code for SMDK2410 and SMDK2440

目的：开linux-2.6.35-rc3archarmplat-s3c24xxmakefile文件：CONFIG_MACH_SMDK宏打开

obj-$(CONFIG_MACH_SMDK)+= common-smdk.o

这个是使针对makefile文件红控制做相应的更改的：

二、kernel启动问题

1.内核机器码arch/arm/tools/mach-types文件中smdk2416为1685

Uboot中borad/Samsung/smdk2416/smdk2416.c中

gd->bd->bi_arch_number =MACH_TYPE;

uboot中也可以通过命令bdinfo查找arch_number = 0x00000695（1685）

这两个要一致

2.uImage的制作：

a.更改linux-2.6.35-rc3/下的makefile文件：

export KBUILD_BUILDHOST := $(SUBARCH)

#ARCH?= arm#delete by ltls

#CROSS_COMPILE?= arm-linux-#delete by ltls

ARCH= arm#add by ltls

CROSS_COMPILE=/usr/local/arm/4.2.2-eabi/usr/bin/arm-linux-#add by ltls

b. #cp config_mini2440_a70.config

c. #make menuconfig进入界面

d.#make zImage

e.#cdarch/arm/boot

f. #mkimage –Aarm –O linux –T kerenel –C none –a 0x30008000 –e 30008000 –n linux-2.6.35 –d zImage uImage

注释：

mkimage命令在uboot生成的/tools下面有mkimage文件拷到bin文件下就ok；0x30008000这个很关键。

3.启动uImage出错，当地在为c0008000改为32000000则正常。

Eg：

Tftp0x32000000 uImage

Bootm 0x32000000

make menuconfig
Kernel hacking--->
[*]Kernel debugging
[*]Kernel low-level debugging functions
[*]Kernel low-level debuggingmessagesvia S3C UART

4.nfs启动dm9000驱动出错：

a.Looking up port of RPC 100003/2 on 192.168.1.90

------------[ cut here ]------------

WARNING: at net/sched/sch_generic.c:258 dev_watchdog+0x270/0x294()

NETDEV WATCHDOG: eth0 (dm9000): transmit queue 0 timed out

Modules linked in:

B. dm9000 Ethernet Driver, V1.31

dm9000 dm9000: eth2090025647: Invalid ethernet

MAC address. Please set using ifconfig

eth0: dm9000a at c480c300,c4810304 IRQ 48

MAC: 00:00:00:00:00:00 (chip)

解决：在dm9000.C文件

memcpy(ndev->dev_addr, "x08x90x90x90x90x90", 6);// add ltls for dm9000

if (!is_valid_ether_addr(ndev->dev_addr))

dev_warn(db->dev, "%s: Invalid ethernet MAC address. Please "

"set using ifconfign", ndev->name);

5.增加dm9000：

//---start---add by ltls for dm9000 ----------------------------

//---author:fj_ltls

//---date:2001.6.18

//------start--------------------------------------------

/* DM9000AEP 10/100 ethernet controller */

static structresourcesmdk2416_dm9k_resource [ ] = {

[0] = {

.start = MACH_smdk2416_DM9K_BASE,

.end= MACH_smdk2416_DM9K_BASE + 3,

.flags = IORESOURCE_MEM

},

[1] = {

.start = MACH_smdk2416_DM9K_BASE + 4,

.end= MACH_smdk2416_DM9K_BASE + 7,

.flags = IORESOURCE_MEM

},

[2] = {

.start = IRQ_EINT4,//ltlsPort :GPF4EINT4

.end= IRQ_EINT4,//ltls

.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,

}

};

/*

* The DM9000 has no eeprom, and it's MAC address is set by

* the bootloader before starting the kernel.

*/

static struct dm9000_plat_data smdk2416_dm9k_pdata = {

.flags= (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),

};

static struct platform_device smdk2416_device_eth = {

.name= "dm9000",

.id= -1,

.num_resources= ARRAY_SIZE(smdk2416_dm9k_resource),

.resource= smdk2416_dm9k_resource,

.dev= {

.platform_data= &smdk2416_dm9k_pdata,

},

};

//---end---add by ltls for dm9000 --------------------------------------

6.增加nandmtdpart：

A.arch/arm/mach-2416/s3c2416.c文件中：

void __init s3c2416_init_uarts(struct s3c2410_uartcfg *cfg, int no)

{

s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);

s3c_device_nand.name = "s3c2416-nand";这个与下面面的要对应更改为“s3c2440-nand”

}

B.Driver/mtd/nand/s3c2410.c文件中：

static struct platform_device_id s3c24xx_driver_ids[] = {

{

.name= "s3c2410-nand",

.driver_data= TYPE_S3C2410,

}, {

.name= "s3c2440-nand",

.driver_data= TYPE_S3C2440,

}, {

.name= "s3c2412-nand",

.driver_data= TYPE_S3C2412,

}, {

.name= "s3c6400-nand",

.driver_data= TYPE_S3C2412, /* compatible with 2412 */

},

{ }

};

C．arch/arm/plat-s3c24xx/common-smdk.c文件中：nandflash的分区：

static struct mtd_partition smdk_default_nand_part[] = {

[0] = {

.name= "Boot Agent",

.size= SZ_16K,

.offset= 0,

},

[1] = {

.name= "S3C2410 flash partition 1",

.offset = 0,

.size= SZ_2M,

},

[2] = {