diff options
Diffstat (limited to 'src/cpu/samsung/exynos5420/dmc_init_ddr3.c')
| -rw-r--r-- | src/cpu/samsung/exynos5420/dmc_init_ddr3.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/cpu/samsung/exynos5420/dmc_init_ddr3.c b/src/cpu/samsung/exynos5420/dmc_init_ddr3.c index ebfe1e1a0f..6c431f374f 100644 --- a/src/cpu/samsung/exynos5420/dmc_init_ddr3.c +++ b/src/cpu/samsung/exynos5420/dmc_init_ddr3.c @@ -376,5 +376,13 @@ int ddr3_mem_ctrl_init(struct mem_timings *mem, int interleave_size, int reset) writel(mem->concontrol | (mem->aref_en << CONCONTROL_AREF_EN_SHIFT) | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT), &drex1->concontrol); + + /* Enable Clock Gating Control for DMC + * this saves around 25 mw dmc power as compared to the power + * consumption without these bits enabled + */ + setbits_le32(&drex0->cgcontrol, DMC_INTERNAL_CG); + setbits_le32(&drex1->cgcontrol, DMC_INTERNAL_CG); + return 0; } |