struct s_axi4_reg
{
    uint32_t reg[1024];
};

struct s_axi4_reg *p_axi4_reg;

#define AXI4_REG_BASE ((struct s_axi4_reg *)(0x60000000))

void axi4_reg_test( void )
{
    int i=0;
    for( i=0; i<4; i++ )
    {
        xprintf( "AXI4_REG_BASE reg addr=%d, w_before:%d.\n", i, AXI4_REG_BASE->reg[i] );
        AXI4_REG_BASE->reg[i] = i;
        xprintf( "AXI4_REG_BASE reg addr=%d,w_later:%d.\n", i, AXI4_REG_BASE->reg[i] );
    }
}