[PATCH v2 15/16] clk: samsung: exynos4: Register PLL rate tables for Exynos4x12
From: Tomasz Figa <hidden>
Date: 2013-08-26 17:09:10
Also in:
linux-devicetree, linux-samsung-soc
Subsystem:
common clk framework, samsung soc clock drivers, the rest · Maintainers:
Michael Turquette, Stephen Boyd, Krzysztof Kozlowski, Sylwester Nawrocki, Chanwoo Choi, Peter Griffin, Linus Torvalds
This patch adds rate tables for PLLs that can be reconfigured at runtime for Exynos4x12 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 <redacted> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> --- drivers/clk/samsung/clk-exynos4.c | 49 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+)
diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c
index 722bf7c..ad5ff50 100644
--- a/drivers/clk/samsung/clk-exynos4.c
+++ b/drivers/clk/samsung/clk-exynos4.c@@ -1026,6 +1026,46 @@ static struct samsung_pll_rate_table exynos4210_vpll_rates[] __initdata = { { /* sentinel */ } }; +static struct samsung_pll_rate_table exynos4x12_apll_rates[] __initdata = { + PLL_35XX_RATE(1500000000, 250, 4, 0), + PLL_35XX_RATE(1400000000, 175, 3, 0), + PLL_35XX_RATE(1300000000, 325, 6, 0), + PLL_35XX_RATE(1200000000, 200, 4, 0), + PLL_35XX_RATE(1100000000, 275, 6, 0), + PLL_35XX_RATE(1000000000, 125, 3, 0), + PLL_35XX_RATE( 900000000, 150, 4, 0), + PLL_35XX_RATE( 800000000, 100, 3, 0), + PLL_35XX_RATE( 700000000, 175, 3, 1), + PLL_35XX_RATE( 600000000, 200, 4, 1), + PLL_35XX_RATE( 500000000, 125, 3, 1), + PLL_35XX_RATE( 400000000, 100, 3, 1), + PLL_35XX_RATE( 300000000, 200, 4, 2), + PLL_35XX_RATE( 200000000, 100, 3, 2), + { /* sentinel */ } +}; + +static struct samsung_pll_rate_table exynos4x12_epll_rates[] __initdata = { + PLL_36XX_RATE(192000000, 48, 3, 1, 0), + PLL_36XX_RATE(180633605, 45, 3, 1, 10381), + PLL_36XX_RATE(180000000, 45, 3, 1, 0), + PLL_36XX_RATE( 73727996, 73, 3, 3, 47710), + PLL_36XX_RATE( 67737602, 90, 4, 3, 20762), + PLL_36XX_RATE( 49151992, 49, 3, 3, 9961), + PLL_36XX_RATE( 45158401, 45, 3, 3, 10381), + { /* sentinel */ } +}; + +static struct samsung_pll_rate_table exynos4x12_vpll_rates[] __initdata = { + PLL_36XX_RATE(533000000, 133, 3, 1, 16384), + PLL_36XX_RATE(440000000, 110, 3, 1, 0), + PLL_36XX_RATE(350000000, 175, 3, 2, 0), + PLL_36XX_RATE(266000000, 133, 3, 2, 0), + PLL_36XX_RATE(160000000, 160, 3, 3, 0), + PLL_36XX_RATE(106031250, 53, 3, 2, 1024), + PLL_36XX_RATE( 53015625, 53, 3, 3, 1024), + { /* 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),
@@ -1090,6 +1130,15 @@ static void __init exynos4_clk_init(struct device_node *np, samsung_clk_register_pll(exynos4210_plls, ARRAY_SIZE(exynos4210_plls), reg_base); } else { + if (_get_rate("fin_pll") == 24000000) { + exynos4x12_plls[apll].rate_table = + exynos4x12_apll_rates; + exynos4x12_plls[epll].rate_table = + exynos4x12_epll_rates; + exynos4x12_plls[vpll].rate_table = + exynos4x12_vpll_rates; + } + samsung_clk_register_pll(exynos4x12_plls, ARRAY_SIZE(exynos4x12_plls), reg_base); }
--
1.8.3.2