MAC Address를 변경한다면 u-boot모드에서 진행 가능합니다. 아래 방법을 참고하여 진행 해보시길 바랍니다.

Kernel 수정

PATH: arch/arm/kernel/

FILE: setup.c

아래 사항 추가

unsigned int system_serial_high;

EXPORT_SYMBOL(system_serial_high);

unsigned int elf_hwcap __read_mostly;

EXPORT_SYMBOL(elf_hwcap);

/* SDKIM MAC */

char *mv_ethaddr = "ba:b0:be:ad:00:00";

EXPORT_SYMBOL(mv_ethaddr);

#ifdef MULTI_CPU

struct processor processor __read_mostly;

#endif

#ifdef MULTI_TLB

struct cpu_tlb_fns cpu_tlb __read_mostly;

early_param("mem", early_mem);

………………….

/* SDKIM for MAC */

static int __init early_ethaddr(char *p){

                    mv_ethaddr = p;

                            return 0;

}

early_param("ethaddr", early_ethaddr);

static void __init

setup_ramdisk(int doload, int prompt, int image_start, unsigned int rd_sz)

{

PATH: drivers/net/

FILE: smsc911x.c

아래 사항 추가

/* shifted register access */

static const struct smsc911x_ops shifted_smsc911x_ops = {

        .reg_read = __smsc911x_reg_read_shift,

        .reg_write = __smsc911x_reg_write_shift,

        .rx_readfifo = smsc911x_rx_readfifo_shift,

        .tx_writefifo = smsc911x_tx_writefifo_shift,

};

/* SDKIM */

extern char *mv_ethaddr;

static void parse_mv_ethaddr(unsigned char *ethaddr){

    char tmp[3];

        int i;

        for(i = 0; i < 6; i++){

                memset(tmp, 0, sizeof(tmp));

                memcpy(tmp, &mv_ethaddr[i * 3], 2);

                ethaddr[i] = simple_strtoul(tmp, NULL, 16);

        }

}

static int __devinit smsc911x_drv_probe(struct platform_device *pdev)

………………………….

#else

        parse_mv_ethaddr(dev->dev_addr);

        if(is_valid_ether_addr(dev->dev_addr)){

                smsc911x_set_hw_mac_address(pdata, dev->dev_addr);

        }else{

                smsc911x_read_mac_address(dev);

                if (is_valid_ether_addr(dev->dev_addr)) {

                        smsc911x_set_hw_mac_address(pdata, dev->dev_addr);

                }else{

                        random_ether_addr(dev->dev_addr);

                        smsc911x_set_hw_mac_address(pdata, dev->dev_addr);

                }

        }