From 5fadfc7ed37efe272983639f0d2f8c801303e796 Mon Sep 17 00:00:00 2001 From: Tomasz Figa Date: Mon, 26 Aug 2013 19:09:09 +0200 Subject: [PATCH] clk: samsung: exynos4: Register PLL rate tables for Exynos4210 This patch adds rate tables for PLLs that can be reconfigured at runtime for Exynos4210 SoCs. Provided tables contain PLL coefficients for input clock of 24 MHz and so are registered only in this case. MPLL does not need runtime reconfiguration and so table for it is not provided. Signed-off-by: Tomasz Figa Signed-off-by: Kyungmin Park Reviewed-by: Sylwester Nawrocki Signed-off-by: Mike Turquette --- drivers/clk/samsung/clk-exynos4.c | 45 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c index 7b88f96..c6796af 100644 --- a/drivers/clk/samsung/clk-exynos4.c +++ b/drivers/clk/samsung/clk-exynos4.c @@ -988,6 +988,40 @@ static struct of_device_id ext_clk_match[] __initdata = { {}, }; +/* PLLs PMS values */ +static struct samsung_pll_rate_table exynos4210_apll_rates[] __initdata = { + PLL_45XX_RATE(1200000000, 150, 3, 1, 28), + PLL_45XX_RATE(1000000000, 250, 6, 1, 28), + PLL_45XX_RATE( 800000000, 200, 6, 1, 28), + PLL_45XX_RATE( 666857142, 389, 14, 1, 13), + PLL_45XX_RATE( 600000000, 100, 4, 1, 13), + PLL_45XX_RATE( 533000000, 533, 24, 1, 5), + PLL_45XX_RATE( 500000000, 250, 6, 2, 28), + PLL_45XX_RATE( 400000000, 200, 6, 2, 28), + PLL_45XX_RATE( 200000000, 200, 6, 3, 28), + { /* sentinel */ } +}; + +static struct samsung_pll_rate_table exynos4210_epll_rates[] __initdata = { + PLL_4600_RATE(192000000, 48, 3, 1, 0, 0), + PLL_4600_RATE(180633605, 45, 3, 1, 10381, 0), + PLL_4600_RATE(180000000, 45, 3, 1, 0, 0), + PLL_4600_RATE( 73727996, 73, 3, 3, 47710, 1), + PLL_4600_RATE( 67737602, 90, 4, 3, 20762, 1), + PLL_4600_RATE( 49151992, 49, 3, 3, 9961, 0), + PLL_4600_RATE( 45158401, 45, 3, 3, 10381, 0), + { /* sentinel */ } +}; + +static struct samsung_pll_rate_table exynos4210_vpll_rates[] __initdata = { + PLL_4650_RATE(360000000, 44, 3, 0, 1024, 0, 14, 0), + PLL_4650_RATE(324000000, 53, 2, 1, 1024, 1, 1, 1), + PLL_4650_RATE(259617187, 63, 3, 1, 1950, 0, 20, 1), + PLL_4650_RATE(110000000, 53, 3, 2, 2048, 0, 17, 0), + PLL_4650_RATE( 55360351, 53, 3, 3, 2417, 0, 17, 0), + { /* sentinel */ } +}; + static struct samsung_pll_clock exynos4210_plls[nr_plls] __initdata = { [apll] = PLL_A(pll_4508, fout_apll, "fout_apll", "fin_pll", APLL_LOCK, APLL_CON0, "fout_apll", NULL), @@ -1038,6 +1072,17 @@ static void __init exynos4_clk_init(struct device_node *np, samsung_clk_register_mux(exynos4210_mux_early, ARRAY_SIZE(exynos4210_mux_early)); + if (_get_rate("fin_pll") == 24000000) { + exynos4210_plls[apll].rate_table = + exynos4210_apll_rates; + exynos4210_plls[epll].rate_table = + exynos4210_epll_rates; + } + + if (_get_rate("mout_vpllsrc") == 24000000) + exynos4210_plls[vpll].rate_table = + exynos4210_vpll_rates; + samsung_clk_register_pll(exynos4210_plls, ARRAY_SIZE(exynos4210_plls), reg_base); } else { -- 2.7.4