为什么UBOOT不为9200开指令缓存呢？

rwdx

#define C1_IDC                (1<<2)        /* icache and/or dcache off/on */


void icache_disable(void)
{
    ulong reg;
    reg = read_p15_c1();
    cp_delay();
    write_p15_c1(reg & ~C1_IDC);
}

int icache_status(void)
{
    return (read_p15_c1() & C1_IDC) != 0;
    return 0;
}

void dcache_enable(void)
{
    ulong reg;
    reg = read_p15_c1();
    cp_delay();
    write_p15_c1(reg | C1_IDC);
}

void dcache_disable(void)
{
    ulong reg;
    reg = read_p15_c1();
    cp_delay();
    write_p15_c1(reg & ~C1_IDC);
}

int dcache_status(void)
{
    return (read_p15_c1() & C1_IDC) != 0;
    return 0;
}


是程序bug还是其它？

rwdx

哈哈，找到了，原来真是个bug,1。1。3的解决了这个问题