| /* |
| * Copyright (c) 2013 Samsung Electronics Co., Ltd. |
| * Author: Tarek Dakhran <t.dakhran@samsung.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * Common Clock Framework support for Exynos5410 SoC. |
| */ |
| |
| #include <dt-bindings/clock/exynos5410.h> |
| |
| #include <linux/clk-provider.h> |
| #include <linux/of.h> |
| #include <linux/of_address.h> |
| #include <linux/clk.h> |
| |
| #include "clk.h" |
| |
| #define APLL_LOCK 0x0 |
| #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 |
| #define BPLL_CON0 0x20110 |
| #define KPLL_LOCK 0x28000 |
| #define KPLL_CON0 0x28100 |
| |
| #define SRC_CPU 0x200 |
| #define DIV_CPU0 0x500 |
| #define SRC_CPERI1 0x4204 |
| #define GATE_IP_G2D 0x8800 |
| #define DIV_TOP0 0x10510 |
| #define DIV_TOP1 0x10514 |
| #define DIV_FSYS0 0x10548 |
| #define DIV_FSYS1 0x1054c |
| #define DIV_FSYS2 0x10550 |
| #define DIV_PERIC0 0x10558 |
| #define DIV_PERIC3 0x10564 |
| #define SRC_TOP0 0x10210 |
| #define SRC_TOP1 0x10214 |
| #define SRC_TOP2 0x10218 |
| #define SRC_FSYS 0x10244 |
| #define SRC_PERIC0 0x10250 |
| #define SRC_MASK_FSYS 0x10340 |
| #define SRC_MASK_PERIC0 0x10350 |
| #define GATE_BUS_FSYS0 0x10740 |
| #define GATE_TOP_SCLK_FSYS 0x10840 |
| #define GATE_TOP_SCLK_PERIC 0x10850 |
| #define GATE_IP_FSYS 0x10944 |
| #define GATE_IP_PERIC 0x10950 |
| #define GATE_IP_PERIS 0x10960 |
| #define SRC_CDREX 0x20200 |
| #define SRC_KFC 0x28200 |
| #define DIV_KFC0 0x28500 |
| |
| /* list of PLLs */ |
| enum exynos5410_plls { |
| apll, cpll, epll, mpll, |
| bpll, kpll, |
| nr_plls /* number of PLLs */ |
| }; |
| |
| /* list of all parent clocks */ |
| 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", }; |
| |
| PNAME(mout_cpu_p) = { "mout_apll", "sclk_mpll", }; |
| PNAME(mout_kfc_p) = { "mout_kpll", "sclk_mpll", }; |
| |
| PNAME(mpll_user_p) = { "fin_pll", "sclk_mpll", }; |
| PNAME(bpll_user_p) = { "fin_pll", "sclk_bpll", }; |
| PNAME(mpll_bpll_p) = { "sclk_mpll_muxed", "sclk_bpll_muxed", }; |
| PNAME(sclk_mpll_bpll_p) = { "sclk_mpll_bpll", "fin_pll", }; |
| |
| PNAME(group2_p) = { "fin_pll", "fin_pll", "none", "none", |
| "none", "none", "sclk_mpll_bpll", |
| "none", "none", "sclk_cpll" }; |
| |
| static const struct samsung_mux_clock exynos5410_mux_clks[] __initconst = { |
| MUX(0, "mout_apll", apll_p, SRC_CPU, 0, 1), |
| MUX(0, "mout_cpu", mout_cpu_p, SRC_CPU, 16, 1), |
| |
| MUX(0, "mout_kpll", kpll_p, SRC_KFC, 0, 1), |
| MUX(0, "mout_kfc", mout_kfc_p, SRC_KFC, 16, 1), |
| |
| MUX(0, "sclk_mpll", mpll_p, SRC_CPERI1, 8, 1), |
| MUX(0, "sclk_mpll_muxed", mpll_user_p, SRC_TOP2, 20, 1), |
| |
| 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), |
| |
| MUX(0, "mout_mmc0", group2_p, SRC_FSYS, 0, 4), |
| MUX(0, "mout_mmc1", group2_p, SRC_FSYS, 4, 4), |
| MUX(0, "mout_mmc2", group2_p, SRC_FSYS, 8, 4), |
| MUX(0, "mout_usbd300", sclk_mpll_bpll_p, SRC_FSYS, 28, 1), |
| MUX(0, "mout_usbd301", sclk_mpll_bpll_p, SRC_FSYS, 29, 1), |
| |
| MUX(0, "mout_uart0", group2_p, SRC_PERIC0, 0, 4), |
| MUX(0, "mout_uart1", group2_p, SRC_PERIC0, 4, 4), |
| MUX(0, "mout_uart2", group2_p, SRC_PERIC0, 8, 4), |
| MUX(0, "mout_uart3", group2_p, SRC_PERIC0, 12, 4), |
| MUX(0, "mout_pwm", group2_p, SRC_PERIC0, 24, 4), |
| |
| MUX(0, "mout_aclk200", mpll_bpll_p, SRC_TOP0, 12, 1), |
| MUX(0, "mout_aclk400", mpll_bpll_p, SRC_TOP0, 20, 1), |
| }; |
| |
| static const struct samsung_div_clock exynos5410_div_clks[] __initconst = { |
| DIV(0, "div_arm", "mout_cpu", DIV_CPU0, 0, 3), |
| DIV(0, "div_arm2", "div_arm", DIV_CPU0, 28, 3), |
| |
| DIV(0, "div_acp", "div_arm2", DIV_CPU0, 8, 3), |
| DIV(0, "div_cpud", "div_arm2", DIV_CPU0, 4, 3), |
| DIV(0, "div_atb", "div_arm2", DIV_CPU0, 16, 3), |
| DIV(0, "pclk_dbg", "div_arm2", DIV_CPU0, 20, 3), |
| |
| DIV(0, "div_kfc", "mout_kfc", DIV_KFC0, 0, 3), |
| DIV(0, "div_aclk", "div_kfc", DIV_KFC0, 4, 3), |
| DIV(0, "div_pclk", "div_kfc", DIV_KFC0, 20, 3), |
| |
| DIV(0, "aclk66_pre", "sclk_mpll_muxed", DIV_TOP1, 24, 3), |
| DIV(0, "aclk66", "aclk66_pre", DIV_TOP0, 0, 3), |
| |
| DIV(0, "dout_usbphy300", "mout_usbd300", DIV_FSYS0, 16, 4), |
| DIV(0, "dout_usbphy301", "mout_usbd301", DIV_FSYS0, 20, 4), |
| DIV(0, "dout_usbd300", "mout_usbd300", DIV_FSYS0, 24, 4), |
| DIV(0, "dout_usbd301", "mout_usbd301", DIV_FSYS0, 28, 4), |
| |
| DIV(0, "div_mmc0", "mout_mmc0", DIV_FSYS1, 0, 4), |
| DIV(0, "div_mmc1", "mout_mmc1", DIV_FSYS1, 16, 4), |
| DIV(0, "div_mmc2", "mout_mmc2", DIV_FSYS2, 0, 4), |
| |
| DIV_F(0, "div_mmc_pre0", "div_mmc0", |
| DIV_FSYS1, 8, 8, CLK_SET_RATE_PARENT, 0), |
| DIV_F(0, "div_mmc_pre1", "div_mmc1", |
| DIV_FSYS1, 24, 8, CLK_SET_RATE_PARENT, 0), |
| DIV_F(0, "div_mmc_pre2", "div_mmc2", |
| DIV_FSYS2, 8, 8, CLK_SET_RATE_PARENT, 0), |
| |
| DIV(0, "div_uart0", "mout_uart0", DIV_PERIC0, 0, 4), |
| DIV(0, "div_uart1", "mout_uart1", DIV_PERIC0, 4, 4), |
| DIV(0, "div_uart2", "mout_uart2", DIV_PERIC0, 8, 4), |
| DIV(0, "div_uart3", "mout_uart3", DIV_PERIC0, 12, 4), |
| |
| DIV(0, "dout_pwm", "mout_pwm", DIV_PERIC3, 0, 4), |
| |
| DIV(0, "aclk200", "mout_aclk200", DIV_TOP0, 12, 3), |
| DIV(0, "aclk266", "mpll_user_p", DIV_TOP0, 16, 3), |
| DIV(0, "aclk400", "mout_aclk400", DIV_TOP0, 24, 3), |
| }; |
| |
| static const struct samsung_gate_clock exynos5410_gate_clks[] __initconst = { |
| GATE(CLK_SSS, "sss", "aclk266", GATE_IP_G2D, 2, 0, 0), |
| GATE(CLK_MCT, "mct", "aclk66", GATE_IP_PERIS, 18, 0, 0), |
| GATE(CLK_WDT, "wdt", "aclk66", GATE_IP_PERIS, 19, 0, 0), |
| GATE(CLK_RTC, "rtc", "aclk66", GATE_IP_PERIS, 20, 0, 0), |
| GATE(CLK_TMU, "tmu", "aclk66", GATE_IP_PERIS, 21, 0, 0), |
| |
| GATE(CLK_SCLK_MMC0, "sclk_mmc0", "div_mmc_pre0", |
| SRC_MASK_FSYS, 0, CLK_SET_RATE_PARENT, 0), |
| GATE(CLK_SCLK_MMC1, "sclk_mmc1", "div_mmc_pre1", |
| SRC_MASK_FSYS, 4, CLK_SET_RATE_PARENT, 0), |
| GATE(CLK_SCLK_MMC2, "sclk_mmc2", "div_mmc_pre2", |
| SRC_MASK_FSYS, 8, CLK_SET_RATE_PARENT, 0), |
| |
| 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), |
| GATE(CLK_SCLK_USBPHY300, "sclk_usbphy300", "dout_usbphy300", |
| GATE_TOP_SCLK_FSYS, 8, CLK_SET_RATE_PARENT, 0), |
| GATE(CLK_SCLK_USBD300, "sclk_usbd300", "dout_usbd300", |
| GATE_TOP_SCLK_FSYS, 9, CLK_SET_RATE_PARENT, 0), |
| GATE(CLK_SCLK_USBD301, "sclk_usbd301", "dout_usbd301", |
| GATE_TOP_SCLK_FSYS, 10, CLK_SET_RATE_PARENT, 0), |
| |
| GATE(CLK_SCLK_PWM, "sclk_pwm", "dout_pwm", |
| GATE_TOP_SCLK_PERIC, 11, CLK_SET_RATE_PARENT, 0), |
| |
| GATE(CLK_UART0, "uart0", "aclk66", GATE_IP_PERIC, 0, 0, 0), |
| GATE(CLK_UART1, "uart1", "aclk66", GATE_IP_PERIC, 1, 0, 0), |
| GATE(CLK_UART2, "uart2", "aclk66", GATE_IP_PERIC, 2, 0, 0), |
| GATE(CLK_UART3, "uart3", "aclk66", GATE_IP_PERIC, 3, 0, 0), |
| GATE(CLK_I2C0, "i2c0", "aclk66", GATE_IP_PERIC, 6, 0, 0), |
| GATE(CLK_I2C1, "i2c1", "aclk66", GATE_IP_PERIC, 7, 0, 0), |
| GATE(CLK_I2C2, "i2c2", "aclk66", GATE_IP_PERIC, 8, 0, 0), |
| GATE(CLK_I2C3, "i2c3", "aclk66", GATE_IP_PERIC, 9, 0, 0), |
| GATE(CLK_USI0, "usi0", "aclk66", GATE_IP_PERIC, 10, 0, 0), |
| GATE(CLK_USI1, "usi1", "aclk66", GATE_IP_PERIC, 11, 0, 0), |
| GATE(CLK_USI2, "usi2", "aclk66", GATE_IP_PERIC, 12, 0, 0), |
| GATE(CLK_USI3, "usi3", "aclk66", GATE_IP_PERIC, 13, 0, 0), |
| GATE(CLK_PWM, "pwm", "aclk66", GATE_IP_PERIC, 24, 0, 0), |
| |
| GATE(CLK_SCLK_UART0, "sclk_uart0", "div_uart0", |
| SRC_MASK_PERIC0, 0, CLK_SET_RATE_PARENT, 0), |
| GATE(CLK_SCLK_UART1, "sclk_uart1", "div_uart1", |
| SRC_MASK_PERIC0, 4, CLK_SET_RATE_PARENT, 0), |
| GATE(CLK_SCLK_UART2, "sclk_uart2", "div_uart2", |
| SRC_MASK_PERIC0, 8, CLK_SET_RATE_PARENT, 0), |
| GATE(CLK_SCLK_UART3, "sclk_uart3", "div_uart3", |
| SRC_MASK_PERIC0, 12, CLK_SET_RATE_PARENT, 0), |
| |
| GATE(CLK_USBH20, "usbh20", "aclk200_fsys", GATE_IP_FSYS, 18, 0, 0), |
| GATE(CLK_USBD300, "usbd300", "aclk200_fsys", GATE_IP_FSYS, 19, 0, 0), |
| GATE(CLK_USBD301, "usbd301", "aclk200_fsys", GATE_IP_FSYS, 20, 0, 0), |
| }; |
| |
| static const struct samsung_pll_rate_table exynos5410_pll2550x_24mhz_tbl[] __initconst = { |
| PLL_36XX_RATE(24 * MHZ, 400000000U, 200, 3, 2, 0), |
| PLL_36XX_RATE(24 * MHZ, 333000000U, 111, 2, 2, 0), |
| PLL_36XX_RATE(24 * MHZ, 300000000U, 100, 2, 2, 0), |
| PLL_36XX_RATE(24 * MHZ, 266000000U, 266, 3, 3, 0), |
| PLL_36XX_RATE(24 * MHZ, 200000000U, 200, 3, 3, 0), |
| PLL_36XX_RATE(24 * MHZ, 192000000U, 192, 3, 3, 0), |
| PLL_36XX_RATE(24 * MHZ, 166000000U, 166, 3, 3, 0), |
| PLL_36XX_RATE(24 * MHZ, 133000000U, 266, 3, 4, 0), |
| PLL_36XX_RATE(24 * MHZ, 100000000U, 200, 3, 4, 0), |
| PLL_36XX_RATE(24 * MHZ, 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, |
| BPLL_CON0, NULL), |
| [kpll] = PLL(pll_35xx, CLK_FOUT_KPLL, "fout_kpll", "fin_pll", KPLL_LOCK, |
| 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 clk *xxti = of_clk_get(np, 0); |
| |
| if (!IS_ERR(xxti) && clk_get_rate(xxti) == 24 * MHZ) |
| exynos5410_plls[epll].rate_table = exynos5410_pll2550x_24mhz_tbl; |
| |
| samsung_cmu_register_one(np, &cmu); |
| |
| pr_debug("Exynos5410: clock setup completed.\n"); |
| } |
| CLK_OF_DECLARE(exynos5410_clk, "samsung,exynos5410-clock", exynos5410_clk_init); |