Acendendo os LEDs da iMX31PDK

volatile unsigned char *led = ((volatile unsigned char *)0xB6020000);
*led = 0xFF;

Para acender o LED usando assembly:

    /* Configure CPLD early to get LEDs working to debug */
    ldr r0, =0xB8000050
    ldr r1, #0x0000D843
    str r1, [r0]
    ldr r1, #0x22252521
    str r1, [r0, #0x04]
    ldr r1, #0x22220A00
    str r1, [r0, #0x08]

    /*Power ON all LEDs*/
    ldr r0, =0xB6020000
    mov r1, #0xFF
    strb r1, [r0]

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