diff options
Diffstat (limited to 'drivers/clk/rockchip/clk_rk3036.c')
| -rw-r--r-- | drivers/clk/rockchip/clk_rk3036.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/clk/rockchip/clk_rk3036.c b/drivers/clk/rockchip/clk_rk3036.c index 5ecf5129d81..83f4ae6ca39 100644 --- a/drivers/clk/rockchip/clk_rk3036.c +++ b/drivers/clk/rockchip/clk_rk3036.c @@ -235,7 +235,7 @@ static ulong rockchip_mmc_get_clk(struct rk3036_cru *cru, uint clk_general_rate, } src_rate = mux == EMMC_SEL_24M ? OSC_HZ : clk_general_rate; - return DIV_TO_RATE(src_rate, div); + return DIV_TO_RATE(src_rate, div) / 2; } static ulong rockchip_mmc_set_clk(struct rk3036_cru *cru, uint clk_general_rate, @@ -247,10 +247,11 @@ static ulong rockchip_mmc_set_clk(struct rk3036_cru *cru, uint clk_general_rate, debug("%s: clk_general_rate=%u\n", __func__, clk_general_rate); /* mmc clock auto divide 2 in internal */ - src_clk_div = (clk_general_rate / 2 + freq - 1) / freq; + src_clk_div = DIV_ROUND_UP(clk_general_rate / 2, freq); - if (src_clk_div > 0x7f) { - src_clk_div = (OSC_HZ / 2 + freq - 1) / freq; + if (src_clk_div > 128) { + src_clk_div = DIV_ROUND_UP(OSC_HZ / 2, freq); + assert(src_clk_div - 1 < 128); mux = EMMC_SEL_24M; } else { mux = EMMC_SEL_GPLL; |