ok6410 u-boot-2012.04.01移植五支持DM9000

继ok6410 u-boot-2012.04.01移植四后，开发板基本已支持MLC NAND,但还有一些细节地方修改，这节增加DM9000支持，通过网卡tftp程序到内存，接着通过NAND命令写到NAND,这一过程肯定会遇到很多问题，遇到后再一个个解决。

开发环境：

系统：ubuntu 10.04.4

单板：ok6410

NAND FLASH：K9GAG08U0D 2048MB

DDR:K4X1G163PCX2 256MB

NET：DM9000AEP

编译器：arm-linux-gcc-4.3.2

搭建开发环境详见ubuntu 10.04.4开发环境配置。

目标：

1.板级初始化,支持单板ok6410

2.修改u-boot,支持NAND启动

3.增加菜单update功能

4.增加MLC NAND支持

5.支持DM9000,网卡下载程序

6.修改环境变量以及mtdpart分区

7.u-boot裁剪及制作补丁

一、修改源码支持DM9000

增加dm9000aep_init设置内存控制器

void dm9000aep_init(void)

{

SROM_BW |= (0XFF<<4);

}

在start.S增加bl dm9000aep_init，其实在以前支持单板是已添加。

分析eth_initialize(gd->bd);->board_eth_init在board/samsung/smdk6410/smdk6410.c修改board_eth_init(bd_t *bis)，改成如下：

#ifdef CONFIG_CMD_NET

int board_eth_init(bd_t *bis)

{

int rc = 0;

#ifdef CONFIG_CS8900

rc = cs8900_initialize(0, CONFIG_CS8900_BASE);

#endif

#ifdef CONFIG_DRIVER_DM9000

rc = dm9000_initialize(bis);

#endif

return rc;

}

#endif

接着头文件include/configs/smdk6410.h增加DM9000网卡支持

/*

* Hardware drivers

*/

#if 0

#define CONFIG_CS8900 /* we have a CS8900 on-board*/

#define CONFIG_CS8900_BASE 0x18800300

#define CONFIG_CS8900_BUS16 /* follow the Linux driver*/

#else

#define CONFIG_DRIVER_DM9000 1

#define CONFIG_DM9000_BASE 0x18000000 //0x20000300

#define DM9000_IO CONFIG_DM9000_BASE

#define DM9000_DATA (CONFIG_DM9000_BASE+4)

#define CONFIG_DM9000_USE_16BIT 1

//#define CONFIG_DM9000_DEBUG 1

#endif
#define CONFIG_NETMASK 255.255.255.0

#define CONFIG_IPADDR 172.16.1.111

#define CONFIG_SERVERIP 172.16.1.114

#define CONFIG_ETHADDR 00:0c:29:4d:e4:f4

编译试试看网卡是否OK

change@change:/si/OK6410/u-boot-2012.04.01$ make

二、编译测试网卡



刚刚编译的程序，烧写OK，重启下面测试网卡

U-Boot 2012.04.01 (Jul 01 2013 - 21:27:53) for SMDK6400

CPU: S3C6400@532MHz

Fclk = 532MHz, Hclk = 133MHz, Pclk = 66MHz (ASYNC Mode)

Board: SMDK6400

DRAM: 128 MiB

WARNING: Caches not enabled

Flash: 0 KB

NAND: select s3c_nand_oob_mlc_64

NAND_ECC_NONE selected by board driver. This is not recommended !!

2048 MiB

*** Warning - bad CRC, using default environment

In: serial

Out: serial

Err: serial

Net: dm9000

Hit any key to stop autoboot: 0

##### Update menu for ok6410 #####

[g] get file, and write to nand flash 0 block

[b] Boot the system

[r] Reset the u-boot

[q] Quit from menu

Enter your selection: q

SMDK6410 # ping 172.16.1.134

dm9000 i/o: 0x18000000, id: 0x90000a46

DM9000: running in 16 bit mode

MAC: 00:0c:29:4d:e4:f4

operating at 100M full duplex mode

Using dm9000 device

host 172.16.1.134 is alive

SMDK6410 #

可以ping通，可以根据自己情况设置网关，ping自己的主机。下面测试看能否用NAND烧写程序，当然是不行的，测试就是为了找问题

SMDK6410 # set serverip 172.16.1.134

SMDK6410 # tftp 0x50000000 u-boot.bin

dm9000 i/o: 0x18000000, id: 0x90000a46

DM9000: running in 16 bit mode

MAC: 00:0c:29:4d:e4:f4

operating at 100M full duplex mode

Using dm9000 device

TFTP from server 172.16.1.134; our IP address is 172.16.1.111

Filename 'u-boot.bin'.

Load address: 0x50000000

Loading: ################

done

Bytes transferred = 228796 (37dbc hex)

SMDK6410 # nand erase 0 0x80000

NAND erase: device 0 offset 0x0, size 0x80000

Erasing at 0x0 -- 100% complete.

OK

SMDK6410 # nand write 0x50000000 0x80000

NAND write: device 0 offset 0x80000, size 0x7ff80000

Attempt to write outside the flash area

0 bytes written: ERROR

SMDK6410 # nand write 0x50000000 0 0x80000

NAND write: device 0 offset 0x0, size 0x80000

524288 bytes written: OK

SMDK6410 # reset

resetting ...

data abort

pc : [<e5951008>] lr : [<000000d0>]

sp : 0c001f90 ip : 12345678 fp : 00000000

r10: 57e380ec r9 : 57cfae38 r8 : 57cf7f64

r7 : 00000001 r6 : 1a000005 r5 : e3500000 r4 : eb006faa

r3 : 00500000 r2 : e5eff014 r1 : 00000000 r0 : 00000000

Flags: nZCv IRQs off FIQs off Mode SVC_32

Resetting CPU ...

看看reset果然就挂了，程序就是用的刚刚烧写OK的程序，看来程序没有烧进对的地方，下面针对nand write 0x50000000 0 0x80000烧写命令进一步跟踪，待续