diff options
Diffstat (limited to 'drivers/clk/samsung/clk-exynos5410.c')
| -rw-r--r-- | drivers/clk/samsung/clk-exynos5410.c | 61 |
1 files changed, 41 insertions, 20 deletions
diff --git a/drivers/clk/samsung/clk-exynos5410.c b/drivers/clk/samsung/clk-exynos5410.c index 54ec486a5e45..fc471a49e8f4 100644 --- a/drivers/clk/samsung/clk-exynos5410.c +++ b/drivers/clk/samsung/clk-exynos5410.c @@ -14,6 +14,7 @@ #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/clk.h> #include "clk.h" @@ -21,6 +22,8 @@ #define APLL_CON0 0x100 #define CPLL_LOCK 0x10020 #define CPLL_CON0 0x10120 +#define EPLL_LOCK 0x10040 +#define EPLL_CON0 0x10130 #define MPLL_LOCK 0x4000 #define MPLL_CON0 0x4100 #define BPLL_LOCK 0x20010 @@ -58,7 +61,7 @@ /* list of PLLs */ enum exynos5410_plls { - apll, cpll, mpll, + apll, cpll, epll, mpll, bpll, kpll, nr_plls /* number of PLLs */ }; @@ -67,6 +70,7 @@ enum exynos5410_plls { PNAME(apll_p) = { "fin_pll", "fout_apll", }; PNAME(bpll_p) = { "fin_pll", "fout_bpll", }; PNAME(cpll_p) = { "fin_pll", "fout_cpll" }; +PNAME(epll_p) = { "fin_pll", "fout_epll" }; PNAME(mpll_p) = { "fin_pll", "fout_mpll", }; PNAME(kpll_p) = { "fin_pll", "fout_kpll", }; @@ -95,6 +99,8 @@ static const struct samsung_mux_clock exynos5410_mux_clks[] __initconst = { MUX(0, "sclk_bpll", bpll_p, SRC_CDREX, 0, 1), MUX(0, "sclk_bpll_muxed", bpll_user_p, SRC_TOP2, 24, 1), + MUX(0, "sclk_epll", epll_p, SRC_TOP2, 12, 1), + MUX(0, "sclk_cpll", cpll_p, SRC_TOP2, 8, 1), MUX(0, "sclk_mpll_bpll", mpll_bpll_p, SRC_TOP1, 20, 1), @@ -176,6 +182,8 @@ static const struct samsung_gate_clock exynos5410_gate_clks[] __initconst = { GATE(CLK_MMC0, "sdmmc0", "aclk200", GATE_BUS_FSYS0, 12, 0, 0), GATE(CLK_MMC1, "sdmmc1", "aclk200", GATE_BUS_FSYS0, 13, 0, 0), GATE(CLK_MMC2, "sdmmc2", "aclk200", GATE_BUS_FSYS0, 14, 0, 0), + GATE(CLK_PDMA1, "pdma1", "aclk200", GATE_BUS_FSYS0, 2, 0, 0), + GATE(CLK_PDMA0, "pdma0", "aclk200", GATE_BUS_FSYS0, 1, 0, 0), GATE(CLK_SCLK_USBPHY301, "sclk_usbphy301", "dout_usbphy301", GATE_TOP_SCLK_FSYS, 7, CLK_SET_RATE_PARENT, 0), @@ -217,11 +225,26 @@ static const struct samsung_gate_clock exynos5410_gate_clks[] __initconst = { GATE(CLK_USBD301, "usbd301", "aclk200_fsys", GATE_IP_FSYS, 20, 0, 0), }; -static const struct samsung_pll_clock exynos5410_plls[nr_plls] __initconst = { +static const struct samsung_pll_rate_table exynos5410_pll2550x_24mhz_tbl[] __initconst = { + PLL_36XX_RATE(400000000U, 200, 3, 2, 0), + PLL_36XX_RATE(333000000U, 111, 2, 2, 0), + PLL_36XX_RATE(300000000U, 100, 2, 2, 0), + PLL_36XX_RATE(266000000U, 266, 3, 3, 0), + PLL_36XX_RATE(200000000U, 200, 3, 3, 0), + PLL_36XX_RATE(192000000U, 192, 3, 3, 0), + PLL_36XX_RATE(166000000U, 166, 3, 3, 0), + PLL_36XX_RATE(133000000U, 266, 3, 4, 0), + PLL_36XX_RATE(100000000U, 200, 3, 4, 0), + PLL_36XX_RATE(66000000U, 176, 2, 5, 0), +}; + +static struct samsung_pll_clock exynos5410_plls[nr_plls] __initdata = { [apll] = PLL(pll_35xx, CLK_FOUT_APLL, "fout_apll", "fin_pll", APLL_LOCK, APLL_CON0, NULL), [cpll] = PLL(pll_35xx, CLK_FOUT_CPLL, "fout_cpll", "fin_pll", CPLL_LOCK, CPLL_CON0, NULL), + [epll] = PLL(pll_2650x, CLK_FOUT_EPLL, "fout_epll", "fin_pll", EPLL_LOCK, + EPLL_CON0, NULL), [mpll] = PLL(pll_35xx, CLK_FOUT_MPLL, "fout_mpll", "fin_pll", MPLL_LOCK, MPLL_CON0, NULL), [bpll] = PLL(pll_35xx, CLK_FOUT_BPLL, "fout_bpll", "fin_pll", BPLL_LOCK, @@ -230,29 +253,27 @@ static const struct samsung_pll_clock exynos5410_plls[nr_plls] __initconst = { KPLL_CON0, NULL), }; +static const struct samsung_cmu_info cmu __initconst = { + .pll_clks = exynos5410_plls, + .nr_pll_clks = ARRAY_SIZE(exynos5410_plls), + .mux_clks = exynos5410_mux_clks, + .nr_mux_clks = ARRAY_SIZE(exynos5410_mux_clks), + .div_clks = exynos5410_div_clks, + .nr_div_clks = ARRAY_SIZE(exynos5410_div_clks), + .gate_clks = exynos5410_gate_clks, + .nr_gate_clks = ARRAY_SIZE(exynos5410_gate_clks), + .nr_clk_ids = CLK_NR_CLKS, +}; + /* register exynos5410 clocks */ static void __init exynos5410_clk_init(struct device_node *np) { - struct samsung_clk_provider *ctx; - void __iomem *reg_base; - - reg_base = of_iomap(np, 0); - if (!reg_base) - panic("%s: failed to map registers\n", __func__); - - ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS); - - samsung_clk_register_pll(ctx, exynos5410_plls, - ARRAY_SIZE(exynos5410_plls), reg_base); + struct clk *xxti = of_clk_get(np, 0); - samsung_clk_register_mux(ctx, exynos5410_mux_clks, - ARRAY_SIZE(exynos5410_mux_clks)); - samsung_clk_register_div(ctx, exynos5410_div_clks, - ARRAY_SIZE(exynos5410_div_clks)); - samsung_clk_register_gate(ctx, exynos5410_gate_clks, - ARRAY_SIZE(exynos5410_gate_clks)); + if (!IS_ERR(xxti) && clk_get_rate(xxti) == 24 * MHZ) + exynos5410_plls[epll].rate_table = exynos5410_pll2550x_24mhz_tbl; - samsung_clk_of_add_provider(np, ctx); + samsung_cmu_register_one(np, &cmu); pr_debug("Exynos5410: clock setup completed.\n"); } |