想要代码的直接走起：
https://github.com/fanglinn/smart210-SDK
支持u-boot-2014.04， linux-3.10.79，已经jffs2/yaffs2文件系统，并有详细的手册说明。
直接贴过程：
vim board/samsung/smart210/smart210.c
#if 0
static void smc9115_pre_init(void)
{
u32 smc_bw_conf, smc_bc_conf;
struct s5pc100_gpio *const gpio =
(struct s5pc100_gpio *)samsung_get_base_gpio();
/* gpio configuration GPK0CON */
s5p_gpio_cfg_pin(&gpio->k0, CONFIG_ENV_SROM_BANK, GPIO_FUNC(2));
/* Ethernet needs bus width of 16 bits */
smc_bw_conf = SMC_DATA16_WIDTH(CONFIG_ENV_SROM_BANK);
smc_bc_conf = SMC_BC_TACS(0x0) | SMC_BC_TCOS(0x4) | SMC_BC_TACC(0xe)
| SMC_BC_TCOH(0x1) | SMC_BC_TAH(0x4)
| SMC_BC_TACP(0x6) | SMC_BC_PMC(0x0);
/* Select and configure the SROMC bank */
s5p_config_sromc(CONFIG_ENV_SROM_BANK, smc_bw_conf, smc_bc_conf);
}
#endif
/* add by shl */
static void dm9000_pre_init(void)
{
u32 smc_bw_conf, smc_bc_conf;
/* Ethernet needs bus width of 16 bits */
smc_bw_conf = SMC_DATA16_WIDTH(CONFIG_ENV_SROM_BANK)
| SMC_BYTE_ADDR_MODE(CONFIG_ENV_SROM_BANK);
smc_bc_conf = SMC_BC_TACS(0) | SMC_BC_TCOS(1) | SMC_BC_TACC(2)
| SMC_BC_TCOH(1) | SMC_BC_TAH(0) | SMC_BC_TACP(0) | SMC_BC_PMC(0);
/* Select and configure the SROMC bank */
s5p_config_sromc(CONFIG_ENV_SROM_BANK, smc_bw_conf, smc_bc_conf);
}
int board_init(void)
{
/* masked by shl */
//smc9115_pre_init();
dm9000_pre_init();
gd->bd->bi_arch_number = MACH_TYPE_SMDKC100;
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
return 0;
}
int board_eth_init(bd_t *bis)
{
int rc = 0;
#ifdef CONFIG_SMC911X
rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
/*add by shl*/
#elif defined(CONFIG_DRIVER_DM9000)
rc = dm9000_initialize(bis);
#endif
return rc;
}vim include/configs/smart210.h
#if 0
#define CONFIG_SMC911X 1 /* we have a SMC9115 on-board */
#define CONFIG_SMC911X_16_BIT 1 /* SMC911X_16_BIT Mode */
#define CONFIG_SMC911X_BASE 0x98800300 /* SMC911X Drive Base */
#endif
#define CONFIG_ENV_SROM_BANK 1 /* Select SROM Bank-1 for Ethernet*/
#define CONFIG_DRIVER_DM9000
#define CONFIG_DM9000_NO_SROM
#define CONFIG_DM9000_BASE 0x88000000
#define DM9000_IO (CONFIG_DM9000_BASE)
#define DM9000_DATA (CONFIG_DM9000_BASE + 0x4)
#define CONFIG_CMD_PING
#define CONFIG_IPADDR 192.168.1.120
#define CONFIG_SERVERIP 192.168.1.101
#define CONFIG_ETHADDR 1A:2A:3A:4A:5A:6A
#endif /* CONFIG_CMD_NET */
编译后：
U-Boot 2014.04 (Feb 19 2019 - 20:03:56) for SMART210
CPU: S5PC110@1000MHz
Board: SMDKC100
DRAM: 512 MiB
WARNING: Caches not enabled
NAND: 1024 MiB
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
Net: dm9000
Hit any key to stop autoboot: 0
Unknown command 'onenand' - try 'help'
Wrong Image Format for bootm command
ERROR: can't get kernel image!
smart210 #
smart210 # ping 192.168.1.102
dm9000 i/o: 0x88000000, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 1a:2a:3a:4a:5a:6a
operating at 100M full duplex mode
Using dm9000 device
ping failed; host 192.168.1.102 is not alive
smart210 #
smart210 # ping 192.168.1.104
dm9000 i/o: 0x88000000, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 1a:2a:3a:4a:5a:6a
operating at 100M full duplex mode
Using dm9000 device
host 192.168.1.104 is alive
smart210 #