diff options
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/samsung/clk-exynos5250.c | 38 | ||||
| -rw-r--r-- | drivers/clk/samsung/clk.h | 2 |
2 files changed, 40 insertions, 0 deletions
diff --git a/drivers/clk/samsung/clk-exynos5250.c b/drivers/clk/samsung/clk-exynos5250.c index 7404084a3a1d..df3628cf2597 100644 --- a/drivers/clk/samsung/clk-exynos5250.c +++ b/drivers/clk/samsung/clk-exynos5250.c @@ -494,6 +494,29 @@ static struct samsung_gate_clock exynos5250_gate_clks[] __initdata = { GATE(g2d, "g2d", "aclk200", GATE_IP_ACP, 3, 0, 0), }; +static __initdata struct samsung_pll_rate_table vpll_24mhz_tbl[] = { + /* sorted in descending order */ + /* PLL_36XX_RATE(rate, m, p, s, k) */ + PLL_36XX_RATE(266000000, 266, 3, 3, 0), + /* Not in UM, but need for eDP on snow */ + PLL_36XX_RATE(70500000, 94, 2, 4, 0), + { }, +}; + +static __initdata struct samsung_pll_rate_table epll_24mhz_tbl[] = { + /* sorted in descending order */ + /* PLL_36XX_RATE(rate, m, p, s, k) */ + PLL_36XX_RATE(192000000, 64, 2, 2, 0), + PLL_36XX_RATE(180633600, 90, 3, 2, 20762), + PLL_36XX_RATE(180000000, 90, 3, 2, 0), + PLL_36XX_RATE(73728000, 98, 2, 4, 19923), + PLL_36XX_RATE(67737600, 90, 2, 4, 20762), + PLL_36XX_RATE(49152000, 98, 3, 4, 19923), + PLL_36XX_RATE(45158400, 90, 3, 4, 20762), + PLL_36XX_RATE(32768000, 131, 3, 5, 4719), + { }, +}; + struct __initdata samsung_pll_clock exynos5250_plls[nr_plls] = { [apll] = PLL_A(pll_35xx, fout_apll, "fout_apll", "fin_pll", APLL_LOCK, APLL_CON0, "fout_apll", NULL), @@ -520,6 +543,8 @@ static __initdata struct of_device_id ext_clk_match[] = { static void __init exynos5250_clk_init(struct device_node *np) { void __iomem *reg_base; + struct clk *vpllsrc; + unsigned long fin_pll_rate, mout_vpllsrc_rate = 0; if (np) { reg_base = of_iomap(np, 0); @@ -537,6 +562,19 @@ static void __init exynos5250_clk_init(struct device_node *np) ext_clk_match); samsung_clk_register_mux(exynos5250_pll_pmux_clks, ARRAY_SIZE(exynos5250_pll_pmux_clks)); + + fin_pll_rate = _get_rate("fin_pll"); + + if (fin_pll_rate == 24 * MHZ) + exynos5250_plls[epll].rate_table = epll_24mhz_tbl; + + vpllsrc = __clk_lookup("mout_vpllsrc"); + if (vpllsrc) + mout_vpllsrc_rate = clk_get_rate(vpllsrc); + + if (mout_vpllsrc_rate == 24 * MHZ) + exynos5250_plls[vpll].rate_table = vpll_24mhz_tbl; + samsung_clk_register_pll(exynos5250_plls, ARRAY_SIZE(exynos5250_plls), reg_base); samsung_clk_register_fixed_rate(exynos5250_fixed_rate_clks, diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h index b3f2532823d5..e7dfccb5d981 100644 --- a/drivers/clk/samsung/clk.h +++ b/drivers/clk/samsung/clk.h @@ -40,6 +40,8 @@ struct samsung_clock_alias { .alias = a, \ } +#define MHZ (1000 * 1000) + /** * struct samsung_fixed_rate_clock: information about fixed-rate clock * @id: platform specific id of the clock. |