BAM_REVISION
[BAM_REVISION] = { 0x0F84, 0x00, 0x00, 0x00 },
val = readl_relaxed(bam_addr(bdev, 0, BAM_REVISION));
[BAM_REVISION] = { 0x0004, 0x00, 0x00, 0x00 },
[BAM_REVISION] = { 0x01000, 0x00, 0x00, 0x00 },