diff options
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/samsung/exynos5420/clock.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/src/cpu/samsung/exynos5420/clock.c b/src/cpu/samsung/exynos5420/clock.c index 783679a096..34d3fb58dc 100644 --- a/src/cpu/samsung/exynos5420/clock.c +++ b/src/cpu/samsung/exynos5420/clock.c @@ -231,7 +231,23 @@ unsigned long clock_get_periph_rate(enum periph_id peripheral) case PERIPH_ID_I2C8: case PERIPH_ID_I2C9: case PERIPH_ID_I2C10: - sclk = get_pll_clk(MPLL); + /* + * I2C block parent clock selection is different from other + * peripherals, so we handle it all here. + * TODO: Add a helper function like with the peripheral clock + * select fields? + */ + src = (readl(&clk->clk_src_top1) >> 8) & 0x3; + if (src == 0x0) + src = CPLL; + else if (src == 0x1) + src = DPLL; + else if (src == 0x2) + src = MPLL; + else + return -1; + + sclk = get_pll_clk(src); div = ((readl(&clk->clk_div_top1) >> 8) & 0x3f) + 1; return sclk / div; default: |