TEGRA20_AC97_CMD_CMD_ADDR_SHIFT
((reg << TEGRA20_AC97_CMD_CMD_ADDR_SHIFT) &
(((reg | 0x80) << TEGRA20_AC97_CMD_CMD_ADDR_SHIFT) &
#define TEGRA20_AC97_CMD_CMD_ADDR_MASK (0xff << TEGRA20_AC97_CMD_CMD_ADDR_SHIFT)