BAM_P_CTRL
[BAM_P_CTRL] = { 0x0000, 0x80, 0x00, 0x00 },
[BAM_P_CTRL] = { 0x1000, 0x1000, 0x00, 0x00 },
[BAM_P_CTRL] = { 0x13000, 0x1000, 0x00, 0x00 },
writel_relaxed(val, bam_addr(bdev, bchan->id, BAM_P_CTRL));