BAM_P_HALT
[BAM_P_HALT] = { 0x0008, 0x80, 0x00, 0x00 },
[BAM_P_HALT] = { 0x1008, 0x1000, 0x00, 0x00 },
[BAM_P_HALT] = { 0x13008, 0x1000, 0x00, 0x00 },
writel_relaxed(1, bam_addr(bdev, bchan->id, BAM_P_HALT));
writel_relaxed(0, bam_addr(bdev, bchan->id, BAM_P_HALT));