POWERMODE0
WREG32_P(MC_ARB_RFSH_RATE, POWERMODE0(val), ~POWERMODE0_MASK);
WREG32_P(MC_ARB_RFSH_RATE, POWERMODE0(val), ~POWERMODE0_MASK);
(POWERMODE0(calculate_memory_refresh_rate(rdev,
POWERMODE0(rv770_calculate_memory_refresh_rate(rdev, pi->boot_sclk)) |