diff options
Diffstat (limited to 'drivers/clk/sunxi-ng')
22 files changed, 1284 insertions, 176 deletions
diff --git a/drivers/clk/sunxi-ng/Kconfig b/drivers/clk/sunxi-ng/Kconfig index 79dfd296c3d1..ecd1b6b2bfaf 100644 --- a/drivers/clk/sunxi-ng/Kconfig +++ b/drivers/clk/sunxi-ng/Kconfig @@ -6,6 +6,11 @@ config SUNXI_CCU if SUNXI_CCU +config SUNIV_F1C100S_CCU + bool "Support for the Allwinner newer F1C100s CCU" + default MACH_SUNIV + depends on MACH_SUNIV || COMPILE_TEST + config SUN50I_A64_CCU bool "Support for the Allwinner A64 CCU" default ARM64 && ARCH_SUNXI @@ -16,6 +21,11 @@ config SUN50I_H6_CCU default ARM64 && ARCH_SUNXI depends on (ARM64 && ARCH_SUNXI) || COMPILE_TEST +config SUN50I_H6_R_CCU + bool "Support for the Allwinner H6 PRCM CCU" + default ARM64 && ARCH_SUNXI + depends on (ARM64 && ARCH_SUNXI) || COMPILE_TEST + config SUN4I_A10_CCU bool "Support for the Allwinner A10/A20 CCU" default MACH_SUN4I @@ -58,6 +68,7 @@ config SUN8I_V3S_CCU config SUN8I_DE2_CCU bool "Support for the Allwinner SoCs DE2 CCU" + default MACH_SUN8I || (ARM64 && ARCH_SUNXI) config SUN8I_R40_CCU bool "Support for the Allwinner R40 CCU" diff --git a/drivers/clk/sunxi-ng/Makefile b/drivers/clk/sunxi-ng/Makefile index 128a40ee5c5e..4c7bee883f2f 100644 --- a/drivers/clk/sunxi-ng/Makefile +++ b/drivers/clk/sunxi-ng/Makefile @@ -1,28 +1,30 @@ # SPDX-License-Identifier: GPL-2.0 # Common objects -lib-$(CONFIG_SUNXI_CCU) += ccu_common.o -lib-$(CONFIG_SUNXI_CCU) += ccu_mmc_timing.o -lib-$(CONFIG_SUNXI_CCU) += ccu_reset.o +obj-y += ccu_common.o +obj-y += ccu_mmc_timing.o +obj-y += ccu_reset.o # Base clock types -lib-$(CONFIG_SUNXI_CCU) += ccu_div.o -lib-$(CONFIG_SUNXI_CCU) += ccu_frac.o -lib-$(CONFIG_SUNXI_CCU) += ccu_gate.o -lib-$(CONFIG_SUNXI_CCU) += ccu_mux.o -lib-$(CONFIG_SUNXI_CCU) += ccu_mult.o -lib-$(CONFIG_SUNXI_CCU) += ccu_phase.o -lib-$(CONFIG_SUNXI_CCU) += ccu_sdm.o +obj-y += ccu_div.o +obj-y += ccu_frac.o +obj-y += ccu_gate.o +obj-y += ccu_mux.o +obj-y += ccu_mult.o +obj-y += ccu_phase.o +obj-y += ccu_sdm.o # Multi-factor clocks -lib-$(CONFIG_SUNXI_CCU) += ccu_nk.o -lib-$(CONFIG_SUNXI_CCU) += ccu_nkm.o -lib-$(CONFIG_SUNXI_CCU) += ccu_nkmp.o -lib-$(CONFIG_SUNXI_CCU) += ccu_nm.o -lib-$(CONFIG_SUNXI_CCU) += ccu_mp.o +obj-y += ccu_nk.o +obj-y += ccu_nkm.o +obj-y += ccu_nkmp.o +obj-y += ccu_nm.o +obj-y += ccu_mp.o # SoC support +obj-$(CONFIG_SUNIV_F1C100S_CCU) += ccu-suniv-f1c100s.o obj-$(CONFIG_SUN50I_A64_CCU) += ccu-sun50i-a64.o obj-$(CONFIG_SUN50I_H6_CCU) += ccu-sun50i-h6.o +obj-$(CONFIG_SUN50I_H6_R_CCU) += ccu-sun50i-h6-r.o obj-$(CONFIG_SUN4I_A10_CCU) += ccu-sun4i-a10.o obj-$(CONFIG_SUN5I_CCU) += ccu-sun5i.o obj-$(CONFIG_SUN6I_A31_CCU) += ccu-sun6i-a31.o @@ -37,12 +39,3 @@ obj-$(CONFIG_SUN8I_R40_CCU) += ccu-sun8i-r40.o obj-$(CONFIG_SUN9I_A80_CCU) += ccu-sun9i-a80.o obj-$(CONFIG_SUN9I_A80_CCU) += ccu-sun9i-a80-de.o obj-$(CONFIG_SUN9I_A80_CCU) += ccu-sun9i-a80-usb.o - -# The lib-y file goals is supposed to work only in arch/*/lib or lib/. In our -# case, we want to use that goal, but even though lib.a will be properly -# generated, it will not be linked in, eventually resulting in a linker error -# for missing symbols. -# -# We can work around that by explicitly adding lib.a to the obj-y goal. This is -# an undocumented behaviour, but works well for now. -obj-$(CONFIG_SUNXI_CCU) += lib.a diff --git a/drivers/clk/sunxi-ng/ccu-sun4i-a10.c b/drivers/clk/sunxi-ng/ccu-sun4i-a10.c index ffa5dac221e4..129ebd2588fd 100644 --- a/drivers/clk/sunxi-ng/ccu-sun4i-a10.c +++ b/drivers/clk/sunxi-ng/ccu-sun4i-a10.c @@ -1434,8 +1434,16 @@ static void __init sun4i_ccu_init(struct device_node *node, return; } - /* Force the PLL-Audio-1x divider to 1 */ val = readl(reg + SUN4I_PLL_AUDIO_REG); + + /* + * Force VCO and PLL bias current to lowest setting. Higher + * settings interfere with sigma-delta modulation and result + * in audible noise and distortions when using SPDIF or I2S. + */ + val &= ~GENMASK(25, 16); + + /* Force the PLL-Audio-1x divider to 1 */ val &= ~GENMASK(29, 26); writel(val | (1 << 26), reg + SUN4I_PLL_AUDIO_REG); diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-a64.c b/drivers/clk/sunxi-ng/ccu-sun50i-a64.c index ee9c12cf3f08..932836d26e2b 100644 --- a/drivers/clk/sunxi-ng/ccu-sun50i-a64.c +++ b/drivers/clk/sunxi-ng/ccu-sun50i-a64.c @@ -51,30 +51,43 @@ static struct ccu_nkmp pll_cpux_clk = { * the base (2x, 4x and 8x), and one variable divider (the one true * pll audio). * - * We don't have any need for the variable divider for now, so we just - * hardcode it to match with the clock names + * With sigma-delta modulation for fractional-N on the audio PLL, + * we have to use specific dividers. This means the variable divider + * can no longer be used, as the audio codec requests the exact clock + * rates we support through this mechanism. So we now hard code the + * variable divider to 1. This means the clock rates will no longer + * match the clock names. */ #define SUN50I_A64_PLL_AUDIO_REG 0x008 -static SUNXI_CCU_NM_WITH_GATE_LOCK(pll_audio_base_clk, "pll-audio-base", - "osc24M", 0x008, - 8, 7, /* N */ - 0, 5, /* M */ - BIT(31), /* gate */ - BIT(28), /* lock */ - CLK_SET_RATE_UNGATE); +static struct ccu_sdm_setting pll_audio_sdm_table[] = { + { .rate = 22579200, .pattern = 0xc0010d84, .m = 8, .n = 7 }, + { .rate = 24576000, .pattern = 0xc000ac02, .m = 14, .n = 14 }, +}; -static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_video0_clk, "pll-video0", - "osc24M", 0x010, - 8, 7, /* N */ - 0, 4, /* M */ - BIT(24), /* frac enable */ - BIT(25), /* frac select */ - 270000000, /* frac rate 0 */ - 297000000, /* frac rate 1 */ - BIT(31), /* gate */ - BIT(28), /* lock */ - CLK_SET_RATE_UNGATE); +static SUNXI_CCU_NM_WITH_SDM_GATE_LOCK(pll_audio_base_clk, "pll-audio-base", + "osc24M", 0x008, + 8, 7, /* N */ + 0, 5, /* M */ + pll_audio_sdm_table, BIT(24), + 0x284, BIT(31), + BIT(31), /* gate */ + BIT(28), /* lock */ + CLK_SET_RATE_UNGATE); + +static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX(pll_video0_clk, "pll-video0", + "osc24M", 0x010, + 192000000, /* Minimum rate */ + 1008000000, /* Maximum rate */ + 8, 7, /* N */ + 0, 4, /* M */ + BIT(24), /* frac enable */ + BIT(25), /* frac select */ + 270000000, /* frac rate 0 */ + 297000000, /* frac rate 1 */ + BIT(31), /* gate */ + BIT(28), /* lock */ + CLK_SET_RATE_UNGATE); static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_ve_clk, "pll-ve", "osc24M", 0x018, @@ -125,17 +138,19 @@ static struct ccu_nk pll_periph1_clk = { }, }; -static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_video1_clk, "pll-video1", - "osc24M", 0x030, - 8, 7, /* N */ - 0, 4, /* M */ - BIT(24), /* frac enable */ - BIT(25), /* frac select */ - 270000000, /* frac rate 0 */ - 297000000, /* frac rate 1 */ - BIT(31), /* gate */ - BIT(28), /* lock */ - CLK_SET_RATE_UNGATE); +static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX(pll_video1_clk, "pll-video1", + "osc24M", 0x030, + 192000000, /* Minimum rate */ + 1008000000, /* Maximum rate */ + 8, 7, /* N */ + 0, 4, /* M */ + BIT(24), /* frac enable */ + BIT(25), /* frac select */ + 270000000, /* frac rate 0 */ + 297000000, /* frac rate 1 */ + BIT(31), /* gate */ + BIT(28), /* lock */ + CLK_SET_RATE_UNGATE); static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_gpu_clk, "pll-gpu", "osc24M", 0x038, @@ -158,7 +173,12 @@ static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_gpu_clk, "pll-gpu", #define SUN50I_A64_PLL_MIPI_REG 0x040 static struct ccu_nkm pll_mipi_clk = { - .enable = BIT(31), + /* + * The bit 23 and 22 are called "LDO{1,2}_EN" on the SoC's + * user manual, and by experiments the PLL doesn't work without + * these bits toggled. + */ + .enable = BIT(31) | BIT(23) | BIT(22), .lock = BIT(28), .n = _SUNXI_CCU_MULT(8, 4), .k = _SUNXI_CCU_MULT_MIN(4, 2, 2), @@ -550,7 +570,7 @@ static SUNXI_CCU_M_WITH_MUX_GATE(csi_mclk_clk, "csi-mclk", csi_mclk_parents, 0x134, 0, 5, 8, 3, BIT(15), 0); static SUNXI_CCU_M_WITH_GATE(ve_clk, "ve", "pll-ve", - 0x13c, 16, 3, BIT(31), 0); + 0x13c, 16, 3, BIT(31), CLK_SET_RATE_PARENT); static SUNXI_CCU_GATE(ac_dig_clk, "ac-dig", "pll-audio", 0x140, BIT(31), CLK_SET_RATE_PARENT); @@ -577,7 +597,7 @@ static const char * const dsi_dphy_parents[] = { "pll-video0", "pll-periph0" }; static const u8 dsi_dphy_table[] = { 0, 2, }; static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(dsi_dphy_clk, "dsi-dphy", dsi_dphy_parents, dsi_dphy_table, - 0x168, 0, 4, 8, 2, BIT(31), CLK_SET_RATE_PARENT); + 0x168, 0, 4, 8, 2, BIT(15), CLK_SET_RATE_PARENT); static SUNXI_CCU_M_WITH_GATE(gpu_clk, "gpu", "pll-gpu", 0x1a0, 0, 3, BIT(31), CLK_SET_RATE_PARENT); @@ -585,9 +605,9 @@ static SUNXI_CCU_M_WITH_GATE(gpu_clk, "gpu", "pll-gpu", /* Fixed Factor clocks */ static CLK_FIXED_FACTOR(osc12M_clk, "osc12M", "osc24M", 2, 1, 0); -/* We hardcode the divider to 4 for now */ +/* We hardcode the divider to 1 for now */ static CLK_FIXED_FACTOR(pll_audio_clk, "pll-audio", - "pll-audio-base", 4, 1, CLK_SET_RATE_PARENT); + "pll-audio-base", 1, 1, CLK_SET_RATE_PARENT); static CLK_FIXED_FACTOR(pll_audio_2x_clk, "pll-audio-2x", "pll-audio-base", 2, 1, CLK_SET_RATE_PARENT); static CLK_FIXED_FACTOR(pll_audio_4x_clk, "pll-audio-4x", @@ -907,10 +927,10 @@ static int sun50i_a64_ccu_probe(struct platform_device *pdev) if (IS_ERR(reg)) return PTR_ERR(reg); - /* Force the PLL-Audio-1x divider to 4 */ + /* Force the PLL-Audio-1x divider to 1 */ val = readl(reg + SUN50I_A64_PLL_AUDIO_REG); val &= ~GENMASK(19, 16); - writel(val | (3 << 16), reg + SUN50I_A64_PLL_AUDIO_REG); + writel(val | (0 << 16), reg + SUN50I_A64_PLL_AUDIO_REG); writel(0x515, reg + SUN50I_A64_PLL_MIPI_REG); diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-a64.h b/drivers/clk/sunxi-ng/ccu-sun50i-a64.h index 061b6fbb4f95..cd415b968e8c 100644 --- a/drivers/clk/sunxi-ng/ccu-sun50i-a64.h +++ b/drivers/clk/sunxi-ng/ccu-sun50i-a64.h @@ -27,7 +27,9 @@ #define CLK_PLL_AUDIO_2X 4 #define CLK_PLL_AUDIO_4X 5 #define CLK_PLL_AUDIO_8X 6 -#define CLK_PLL_VIDEO0 7 + +/* PLL_VIDEO0 exported for HDMI PHY */ + #define CLK_PLL_VIDEO0_2X 8 #define CLK_PLL_VE 9 #define CLK_PLL_DDR0 10 diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c b/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c new file mode 100644 index 000000000000..27554eaf6929 --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c @@ -0,0 +1,207 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2017 Icenowy Zheng <icenowy@aosc.xyz> + */ + +#include <linux/clk-provider.h> +#include <linux/of_address.h> +#include <linux/platform_device.h> + +#include "ccu_common.h" +#include "ccu_reset.h" + +#include "ccu_div.h" +#include "ccu_gate.h" +#include "ccu_mp.h" +#include "ccu_nm.h" + +#include "ccu-sun50i-h6-r.h" + +/* + * Information about AR100 and AHB/APB clocks in R_CCU are gathered from + * clock definitions in the BSP source code. + */ + +static const char * const ar100_r_apb2_parents[] = { "osc24M", "osc32k", + "pll-periph0", "iosc" }; +static const struct ccu_mux_var_prediv ar100_r_apb2_predivs[] = { + { .index = 2, .shift = 0, .width = 5 }, +}; + +static struct ccu_div ar100_clk = { + .div = _SUNXI_CCU_DIV_FLAGS(8, 2, CLK_DIVIDER_POWER_OF_TWO), + + .mux = { + .shift = 24, + .width = 2, + + .var_predivs = ar100_r_apb2_predivs, + .n_var_predivs = ARRAY_SIZE(ar100_r_apb2_predivs), + }, + + .common = { + .reg = 0x000, + .features = CCU_FEATURE_VARIABLE_PREDIV, + .hw.init = CLK_HW_INIT_PARENTS("ar100", + ar100_r_apb2_parents, + &ccu_div_ops, + 0), + }, +}; + +static CLK_FIXED_FACTOR(r_ahb_clk, "r-ahb", "ar100", 1, 1, 0); + +static struct ccu_div r_apb1_clk = { + .div = _SUNXI_CCU_DIV(0, 2), + + .common = { + .reg = 0x00c, + .hw.init = CLK_HW_INIT("r-apb1", + "r-ahb", + &ccu_div_ops, + 0), + }, +}; + +static struct ccu_div r_apb2_clk = { + .div = _SUNXI_CCU_DIV_FLAGS(8, 2, CLK_DIVIDER_POWER_OF_TWO), + + .mux = { + .shift = 24, + .width = 2, + + .var_predivs = ar100_r_apb2_predivs, + .n_var_predivs = ARRAY_SIZE(ar100_r_apb2_predivs), + }, + + .common = { + .reg = 0x010, + .features = CCU_FEATURE_VARIABLE_PREDIV, + .hw.init = CLK_HW_INIT_PARENTS("r-apb2", + ar100_r_apb2_parents, + &ccu_div_ops, + 0), + }, +}; + +/* + * Information about the gate/resets are gathered from the clock header file + * in the BSP source code, although most of them are unused. The existence + * of the hardware block is verified with "3.1 Memory Mapping" chapter in + * "Allwinner H6 V200 User Manual V1.1"; and the parent APB buses are verified + * with "3.3.2.1 System Bus Tree" chapter inthe same document. + */ +static SUNXI_CCU_GATE(r_apb1_timer_clk, "r-apb1-timer", "r-apb1", + 0x11c, BIT(0), 0); +static SUNXI_CCU_GATE(r_apb1_twd_clk, "r-apb1-twd", "r-apb1", + 0x12c, BIT(0), 0); +static SUNXI_CCU_GATE(r_apb1_pwm_clk, "r-apb1-pwm", "r-apb1", + 0x13c, BIT(0), 0); +static SUNXI_CCU_GATE(r_apb2_uart_clk, "r-apb2-uart", "r-apb2", + 0x18c, BIT(0), 0); +static SUNXI_CCU_GATE(r_apb2_i2c_clk, "r-apb2-i2c", "r-apb2", + 0x19c, BIT(0), 0); +static SUNXI_CCU_GATE(r_apb1_ir_clk, "r-apb1-ir", "r-apb1", + 0x1cc, BIT(0), 0); +static SUNXI_CCU_GATE(r_apb1_w1_clk, "r-apb1-w1", "r-apb1", + 0x1cc, BIT(0), 0); + +/* Information of IR(RX) mod clock is gathered from BSP source code */ +static const char * const r_mod0_default_parents[] = { "osc32k", "osc24M" }; +static SUNXI_CCU_MP_WITH_MUX_GATE(ir_clk, "ir", + r_mod0_default_parents, 0x1c0, + 0, 5, /* M */ + 8, 2, /* P */ + 24, 1, /* mux */ + BIT(31), /* gate */ + 0); + +/* + * BSP didn't use the 1-wire function at all now, and the information about + * this mod clock is guessed from the IR mod clock above. The existence of + * this mod clock is proven by BSP clock header, and the dividers are verified + * by contents in the 1-wire related chapter of the User Manual. + */ + +static SUNXI_CCU_MP_WITH_MUX_GATE(w1_clk, "w1", + r_mod0_default_parents, 0x1e0, + 0, 5, /* M */ + 8, 2, /* P */ + 24, 1, /* mux */ + BIT(31), /* gate */ + 0); + +static struct ccu_common *sun50i_h6_r_ccu_clks[] = { + &ar100_clk.common, + &r_apb1_clk.common, + &r_apb2_clk.common, + &r_apb1_timer_clk.common, + &r_apb1_twd_clk.common, + &r_apb1_pwm_clk.common, + &r_apb2_uart_clk.common, + &r_apb2_i2c_clk.common, + &r_apb1_ir_clk.common, + &r_apb1_w1_clk.common, + &ir_clk.common, + &w1_clk.common, +}; + +static struct clk_hw_onecell_data sun50i_h6_r_hw_clks = { + .hws = { + [CLK_AR100] = &ar100_clk.common.hw, + [CLK_R_AHB] = &r_ahb_clk.hw, + [CLK_R_APB1] = &r_apb1_clk.common.hw, + [CLK_R_APB2] = &r_apb2_clk.common.hw, + [CLK_R_APB1_TIMER] = &r_apb1_timer_clk.common.hw, + [CLK_R_APB1_TWD] = &r_apb1_twd_clk.common.hw, + [CLK_R_APB1_PWM] = &r_apb1_pwm_clk.common.hw, + [CLK_R_APB2_UART] = &r_apb2_uart_clk.common.hw, + [CLK_R_APB2_I2C] = &r_apb2_i2c_clk.common.hw, + [CLK_R_APB1_IR] = &r_apb1_ir_clk.common.hw, + [CLK_R_APB1_W1] = &r_apb1_w1_clk.common.hw, + [CLK_IR] = &ir_clk.common.hw, + [CLK_W1] = &w1_clk.common.hw, + }, + .num = CLK_NUMBER, +}; + +static struct ccu_reset_map sun50i_h6_r_ccu_resets[] = { + [RST_R_APB1_TIMER] = { 0x11c, BIT(16) }, + [RST_R_APB1_TWD] = { 0x12c, BIT(16) }, + [RST_R_APB1_PWM] = { 0x13c, BIT(16) }, + [RST_R_APB2_UART] = { 0x18c, BIT(16) }, + [RST_R_APB2_I2C] = { 0x19c, BIT(16) }, + [RST_R_APB1_IR] = { 0x1cc, BIT(16) }, + [RST_R_APB1_W1] = { 0x1ec, BIT(16) }, +}; + +static const struct sunxi_ccu_desc sun50i_h6_r_ccu_desc = { + .ccu_clks = sun50i_h6_r_ccu_clks, + .num_ccu_clks = ARRAY_SIZE(sun50i_h6_r_ccu_clks), + + .hw_clks = &sun50i_h6_r_hw_clks, + + .resets = sun50i_h6_r_ccu_resets, + .num_resets = ARRAY_SIZE(sun50i_h6_r_ccu_resets), +}; + +static void __init sunxi_r_ccu_init(struct device_node *node, + const struct sunxi_ccu_desc *desc) +{ + void __iomem *reg; + + reg = of_io_request_and_map(node, 0, of_node_full_name(node)); + if (IS_ERR(reg)) { + pr_err("%pOF: Could not map the clock registers\n", node); + return; + } + + sunxi_ccu_probe(node, reg, desc); +} + +static void __init sun50i_h6_r_ccu_setup(struct device_node *node) +{ + sunxi_r_ccu_init(node, &sun50i_h6_r_ccu_desc); +} +CLK_OF_DECLARE(sun50i_h6_r_ccu, "allwinner,sun50i-h6-r-ccu", + sun50i_h6_r_ccu_setup); diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.h b/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.h new file mode 100644 index 000000000000..782117dc0b28 --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2017 Icenowy Zheng <icenowy@aosc.xyz> + */ + +#ifndef _CCU_SUN50I_H6_R_H +#define _CCU_SUN50I_H6_R_H + +#include <dt-bindings/clock/sun50i-h6-r-ccu.h> +#include <dt-bindings/reset/sun50i-h6-r-ccu.h> + +/* AHB/APB bus clocks are not exported except APB1 for R_PIO */ +#define CLK_R_AHB 1 + +#define CLK_R_APB2 3 + +#define CLK_NUMBER (CLK_W1 + 1) + +#endif /* _CCU_SUN50I_H6_R_H */ diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c index bdbfe78fe133..139e8389615c 100644 --- a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c +++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c @@ -120,6 +120,8 @@ static struct ccu_nm pll_video0_clk = { .n = _SUNXI_CCU_MULT_MIN(8, 8, 12), .m = _SUNXI_CCU_DIV(1, 1), /* input divider */ .fixed_post_div = 4, + .min_rate = 288000000, + .max_rate = 2400000000UL, .common = { .reg = 0x040, .features = CCU_FEATURE_FIXED_POSTDIV, @@ -136,6 +138,8 @@ static struct ccu_nm pll_video1_clk = { .n = _SUNXI_CCU_MULT_MIN(8, 8, 12), .m = _SUNXI_CCU_DIV(1, 1), /* input divider */ .fixed_post_div = 4, + .min_rate = 288000000, + .max_rate = 2400000000UL, .common = { .reg = 0x048, .features = CCU_FEATURE_FIXED_POSTDIV, @@ -224,7 +228,7 @@ static SUNXI_CCU_MP_WITH_MUX(psi_ahb1_ahb2_clk, "psi-ahb1-ahb2", psi_ahb1_ahb2_parents, 0x510, 0, 5, /* M */ - 16, 2, /* P */ + 8, 2, /* P */ 24, 2, /* mux */ 0); @@ -233,19 +237,19 @@ static const char * const ahb3_apb1_apb2_parents[] = { "osc24M", "osc32k", "pll-periph0" }; static SUNXI_CCU_MP_WITH_MUX(ahb3_clk, "ahb3", ahb3_apb1_apb2_parents, 0x51c, 0, 5, /* M */ - 16, 2, /* P */ + 8, 2, /* P */ 24, 2, /* mux */ 0); static SUNXI_CCU_MP_WITH_MUX(apb1_clk, "apb1", ahb3_apb1_apb2_parents, 0x520, 0, 5, /* M */ - 16, 2, /* P */ + 8, 2, /* P */ 24, 2, /* mux */ 0); static SUNXI_CCU_MP_WITH_MUX(apb2_clk, "apb2", ahb3_apb1_apb2_parents, 0x524, 0, 5, /* M */ - 16, 2, /* P */ + 8, 2, /* P */ 24, 2, /* mux */ 0); @@ -352,7 +356,7 @@ static SUNXI_CCU_GATE(bus_dbg_clk, "bus-dbg", "psi-ahb1-ahb2", static SUNXI_CCU_GATE(bus_psi_clk, "bus-psi", "psi-ahb1-ahb2", 0x79c, BIT(0), 0); -static SUNXI_CCU_GATE(bus_pwm_clk, "bus-pwm", "apb1", 0x79c, BIT(0), 0); +static SUNXI_CCU_GATE(bus_pwm_clk, "bus-pwm", "apb1", 0x7ac, BIT(0), 0); static SUNXI_CCU_GATE(bus_iommu_clk, "bus-iommu", "apb1", 0x7bc, BIT(0), 0); @@ -408,26 +412,29 @@ static SUNXI_CCU_GATE(bus_nand_clk, "bus-nand", "ahb3", 0x82c, BIT(0), 0); static const char * const mmc_parents[] = { "osc24M", "pll-periph0-2x", "pll-periph1-2x" }; -static SUNXI_CCU_MP_WITH_MUX_GATE(mmc0_clk, "mmc0", mmc_parents, 0x830, - 0, 4, /* M */ - 8, 2, /* N */ - 24, 3, /* mux */ - BIT(31),/* gate */ - 0); - -static SUNXI_CCU_MP_WITH_MUX_GATE(mmc1_clk, "mmc1", mmc_parents, 0x834, - 0, 4, /* M */ - 8, 2, /* N */ - 24, 3, /* mux */ - BIT(31),/* gate */ - 0); - -static SUNXI_CCU_MP_WITH_MUX_GATE(mmc2_clk, "mmc2", mmc_parents, 0x838, - 0, 4, /* M */ - 8, 2, /* N */ - 24, 3, /* mux */ - BIT(31),/* gate */ - 0); +static SUNXI_CCU_MP_WITH_MUX_GATE_POSTDIV(mmc0_clk, "mmc0", mmc_parents, 0x830, + 0, 4, /* M */ + 8, 2, /* N */ + 24, 2, /* mux */ + BIT(31), /* gate */ + 2, /* post-div */ + 0); + +static SUNXI_CCU_MP_WITH_MUX_GATE_POSTDIV(mmc1_clk, "mmc1", mmc_parents, 0x834, + 0, 4, /* M */ + 8, 2, /* N */ + 24, 2, /* mux */ + BIT(31), /* gate */ + 2, /* post-div */ + 0); + +static SUNXI_CCU_MP_WITH_MUX_GATE_POSTDIV(mmc2_clk, "mmc2", mmc_parents, 0x838, + 0, 4, /* M */ + 8, 2, /* N */ + 24, 2, /* mux */ + BIT(31), /* gate */ + 2, /* post-div */ + 0); static SUNXI_CCU_GATE(bus_mmc0_clk, "bus-mmc0", "ahb3", 0x84c, BIT(0), 0); static SUNXI_CCU_GATE(bus_mmc1_clk, "bus-mmc1", "ahb3", 0x84c, BIT(1), 0); diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-a33.c b/drivers/clk/sunxi-ng/ccu-sun8i-a33.c index 13eb5b23c5e7..c7bf814dfd2b 100644 --- a/drivers/clk/sunxi-ng/ccu-sun8i-a33.c +++ b/drivers/clk/sunxi-ng/ccu-sun8i-a33.c @@ -51,18 +51,29 @@ static struct ccu_nkmp pll_cpux_clk = { * the base (2x, 4x and 8x), and one variable divider (the one true * pll audio). * - * We don't have any need for the variable divider for now, so we just - * hardcode it to match with the clock names + * With sigma-delta modulation for fractional-N on the audio PLL, + * we have to use specific dividers. This means the variable divider + * can no longer be used, as the audio codec requests the exact clock + * rates we support through this mechanism. So we now hard code the + * variable divider to 1. This means the clock rates will no longer + * match the clock names. */ #define SUN8I_A33_PLL_AUDIO_REG 0x008 -static SUNXI_CCU_NM_WITH_GATE_LOCK(pll_audio_base_clk, "pll-audio-base", - "osc24M", 0x008, - 8, 7, /* N */ - 0, 5, /* M */ - BIT(31), /* gate */ - BIT(28), /* lock */ - CLK_SET_RATE_UNGATE); +static struct ccu_sdm_setting pll_audio_sdm_table[] = { + { .rate = 22579200, .pattern = 0xc0010d84, .m = 8, .n = 7 }, + { .rate = 24576000, .pattern = 0xc000ac02, .m = 14, .n = 14 }, +}; + +static SUNXI_CCU_NM_WITH_SDM_GATE_LOCK(pll_audio_base_clk, "pll-audio-base", + "osc24M", 0x008, + 8, 7, /* N */ + 0, 5, /* M */ + pll_audio_sdm_table, BIT(24), + 0x284, BIT(31), + BIT(31), /* gate */ + BIT(28), /* lock */ + CLK_SET_RATE_UNGATE); static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_video_clk, "pll-video", "osc24M", 0x010, @@ -366,10 +377,10 @@ static SUNXI_CCU_MP_WITH_MUX_GATE(spi1_clk, "spi1", mod0_default_parents, 0x0a4, static const char * const i2s_parents[] = { "pll-audio-8x", "pll-audio-4x", "pll-audio-2x", "pll-audio" }; static SUNXI_CCU_MUX_WITH_GATE(i2s0_clk, "i2s0", i2s_parents, - 0x0b0, 16, 2, BIT(31), 0); + 0x0b0, 16, 2, BIT(31), CLK_SET_RATE_PARENT); static SUNXI_CCU_MUX_WITH_GATE(i2s1_clk, "i2s1", i2s_parents, - 0x0b4, 16, 2, BIT(31), 0); + 0x0b4, 16, 2, BIT(31), CLK_SET_RATE_PARENT); /* TODO: the parent for most of the USB clocks is not known */ static SUNXI_CCU_GATE(usb_phy0_clk, "usb-phy0", "osc24M", @@ -446,7 +457,7 @@ static SUNXI_CCU_M_WITH_GATE(ve_clk, "ve", "pll-ve", static SUNXI_CCU_GATE(ac_dig_clk, "ac-dig", "pll-audio", 0x140, BIT(31), CLK_SET_RATE_PARENT); static SUNXI_CCU_GATE(ac_dig_4x_clk, "ac-dig-4x", "pll-audio-4x", - 0x140, BIT(30), 0); + 0x140, BIT(30), CLK_SET_RATE_PARENT); static SUNXI_CCU_GATE(avs_clk, "avs", "osc24M", 0x144, BIT(31), 0); @@ -576,9 +587,9 @@ static struct ccu_common *sun8i_a33_ccu_clks[] = { &ats_clk.common, }; -/* We hardcode the divider to 4 for now */ +/* We hardcode the divider to 1 for now */ static CLK_FIXED_FACTOR(pll_audio_clk, "pll-audio", - "pll-audio-base", 4, 1, CLK_SET_RATE_PARENT); + "pll-audio-base", 1, 1, CLK_SET_RATE_PARENT); static CLK_FIXED_FACTOR(pll_audio_2x_clk, "pll-audio-2x", "pll-audio-base", 2, 1, CLK_SET_RATE_PARENT); static CLK_FIXED_FACTOR(pll_audio_4x_clk, "pll-audio-4x", @@ -781,10 +792,10 @@ static void __init sun8i_a33_ccu_setup(struct device_node *node) return; } - /* Force the PLL-Audio-1x divider to 4 */ + /* Force the PLL-Audio-1x divider to 1 */ val = readl(reg + SUN8I_A33_PLL_AUDIO_REG); val &= ~GENMASK(19, 16); - writel(val | (3 << 16), reg + SUN8I_A33_PLL_AUDIO_REG); + writel(val | (0 << 16), reg + SUN8I_A33_PLL_AUDIO_REG); /* Force PLL-MIPI to MIPI mode */ val = readl(reg + SUN8I_A33_PLL_MIPI_REG); diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c b/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c index 7d08015b980d..2d6555d73170 100644 --- a/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c +++ b/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c @@ -108,6 +108,7 @@ static struct ccu_nkmp pll_video0_clk = { .n = _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0), .m = _SUNXI_CCU_DIV(16, 1), /* input divider */ .p = _SUNXI_CCU_DIV(0, 2), /* output divider */ + .max_rate = 3000000000UL, .common = { .reg = 0x010, .lock_reg = CCU_SUN8I_A83T_LOCK_REG, @@ -220,6 +221,7 @@ static struct ccu_nkmp pll_video1_clk = { .n = _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0), .m = _SUNXI_CCU_DIV(16, 1), /* input divider */ .p = _SUNXI_CCU_DIV(0, 2), /* external divider p */ + .max_rate = 3000000000UL, .common = { .reg = 0x04c, .lock_reg = CCU_SUN8I_A83T_LOCK_REG, diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-de2.c b/drivers/clk/sunxi-ng/ccu-sun8i-de2.c index 468d1abaf0ee..1c9ae0a319c1 100644 --- a/drivers/clk/sunxi-ng/ccu-sun8i-de2.c +++ b/drivers/clk/sunxi-ng/ccu-sun8i-de2.c @@ -31,6 +31,8 @@ static SUNXI_CCU_GATE(bus_mixer1_clk, "bus-mixer1", "bus-de", 0x04, BIT(1), 0); static SUNXI_CCU_GATE(bus_wb_clk, "bus-wb", "bus-de", 0x04, BIT(2), 0); +static SUNXI_CCU_GATE(bus_rot_clk, "bus-rot", "bus-de", + 0x04, BIT(3), 0); static SUNXI_CCU_GATE(mixer0_clk, "mixer0", "mixer0-div", 0x00, BIT(0), CLK_SET_RATE_PARENT); @@ -38,6 +40,8 @@ static SUNXI_CCU_GATE(mixer1_clk, "mixer1", "mixer1-div", 0x00, BIT(1), CLK_SET_RATE_PARENT); static SUNXI_CCU_GATE(wb_clk, "wb", "wb-div", 0x00, BIT(2), CLK_SET_RATE_PARENT); +static SUNXI_CCU_GATE(rot_clk, "rot", "rot-div", + 0x00, BIT(3), CLK_SET_RATE_PARENT); static SUNXI_CCU_M(mixer0_div_clk, "mixer0-div", "de", 0x0c, 0, 4, CLK_SET_RATE_PARENT); @@ -45,6 +49,8 @@ static SUNXI_CCU_M(mixer1_div_clk, "mixer1-div", "de", 0x0c, 4, 4, CLK_SET_RATE_PARENT); static SUNXI_CCU_M(wb_div_clk, "wb-div", "de", 0x0c, 8, 4, CLK_SET_RATE_PARENT); +static SUNXI_CCU_M(rot_div_clk, "rot-div", "de", 0x0c, 0x0c, 4, + CLK_SET_RATE_PARENT); static SUNXI_CCU_M(mixer0_div_a83_clk, "mixer0-div", "pll-de", 0x0c, 0, 4, CLK_SET_RATE_PARENT); @@ -53,6 +59,24 @@ static SUNXI_CCU_M(mixer1_div_a83_clk, "mixer1-div", "pll-de", 0x0c, 4, 4, static SUNXI_CCU_M(wb_div_a83_clk, "wb-div", "pll-de", 0x0c, 8, 4, CLK_SET_RATE_PARENT); +static struct ccu_common *sun50i_h6_de3_clks[] = { + &mixer0_clk.common, + &mixer1_clk.common, + &wb_clk.common, + + &bus_mixer0_clk.common, + &bus_mixer1_clk.common, + &bus_wb_clk.common, + + &mixer0_div_clk.common, + &mixer1_div_clk.common, + &wb_div_clk.common, + + &bus_rot_clk.common, + &rot_clk.common, + &rot_div_clk.common, +}; + static struct ccu_common *sun8i_a83t_de2_clks[] = { &mixer0_clk.common, &mixer1_clk.common, @@ -106,7 +130,7 @@ static struct clk_hw_onecell_data sun8i_a83t_de2_hw_clks = { [CLK_MIXER1_DIV] = &mixer1_div_a83_clk.common.hw, [CLK_WB_DIV] = &wb_div_a83_clk.common.hw, }, - .num = CLK_NUMBER, + .num = CLK_NUMBER_WITHOUT_ROT, }; static struct clk_hw_onecell_data sun8i_h3_de2_hw_clks = { @@ -123,7 +147,7 @@ static struct clk_hw_onecell_data sun8i_h3_de2_hw_clks = { [CLK_MIXER1_DIV] = &mixer1_div_clk.common.hw, [CLK_WB_DIV] = &wb_div_clk.common.hw, }, - .num = CLK_NUMBER, + .num = CLK_NUMBER_WITHOUT_ROT, }; static struct clk_hw_onecell_data sun8i_v3s_de2_hw_clks = { @@ -137,7 +161,27 @@ static struct clk_hw_onecell_data sun8i_v3s_de2_hw_clks = { [CLK_MIXER0_DIV] = &mixer0_div_clk.common.hw, [CLK_WB_DIV] = &wb_div_clk.common.hw, }, - .num = CLK_NUMBER, + .num = CLK_NUMBER_WITHOUT_ROT, +}; + +static struct clk_hw_onecell_data sun50i_h6_de3_hw_clks = { + .hws = { + [CLK_MIXER0] = &mixer0_clk.common.hw, + [CLK_MIXER1] = &mixer1_clk.common.hw, + [CLK_WB] = &wb_clk.common.hw, + [CLK_ROT] = &rot_clk.common.hw, + + [CLK_BUS_MIXER0] = &bus_mixer0_clk.common.hw, + [CLK_BUS_MIXER1] = &bus_mixer1_clk.common.hw, + [CLK_BUS_WB] = &bus_wb_clk.common.hw, + [CLK_BUS_ROT] = &bus_rot_clk.common.hw, + + [CLK_MIXER0_DIV] = &mixer0_div_clk.common.hw, + [CLK_MIXER1_DIV] = &mixer1_div_clk.common.hw, + [CLK_WB_DIV] = &wb_div_clk.common.hw, + [CLK_ROT_DIV] = &rot_div_clk.common.hw, + }, + .num = CLK_NUMBER_WITH_ROT, }; static struct ccu_reset_map sun8i_a83t_de2_resets[] = { @@ -156,6 +200,13 @@ static struct ccu_reset_map sun50i_a64_de2_resets[] = { [RST_WB] = { 0x08, BIT(2) }, }; +static struct ccu_reset_map sun50i_h6_de3_resets[] = { + [RST_MIXER0] = { 0x08, BIT(0) }, + [RST_MIXER1] = { 0x08, BIT(1) }, + [RST_WB] = { 0x08, BIT(2) }, + [RST_ROT] = { 0x08, BIT(3) }, +}; + static const struct sunxi_ccu_desc sun8i_a83t_de2_clk_desc = { .ccu_clks = sun8i_a83t_de2_clks, .num_ccu_clks = ARRAY_SIZE(sun8i_a83t_de2_clks), @@ -186,6 +237,16 @@ static const struct sunxi_ccu_desc sun50i_a64_de2_clk_desc = { .num_resets = ARRAY_SIZE(sun50i_a64_de2_resets), }; +static const struct sunxi_ccu_desc sun50i_h6_de3_clk_desc = { + .ccu_clks = sun50i_h6_de3_clks, + .num_ccu_clks = ARRAY_SIZE(sun50i_h6_de3_clks), + + .hw_clks = &sun50i_h6_de3_hw_clks, + + .resets = sun50i_h6_de3_resets, + .num_resets = ARRAY_SIZE(sun50i_h6_de3_resets), +}; + static const struct sunxi_ccu_desc sun8i_v3s_de2_clk_desc = { .ccu_clks = sun8i_v3s_de2_clks, .num_ccu_clks = ARRAY_SIZE(sun8i_v3s_de2_clks), @@ -289,16 +350,17 @@ static const struct of_device_id sunxi_de2_clk_ids[] = { .data = &sun8i_v3s_de2_clk_desc, }, { + .compatible = "allwinner,sun50i-a64-de2-clk", + .data = &sun50i_a64_de2_clk_desc, + }, + { .compatible = "allwinner,sun50i-h5-de2-clk", .data = &sun50i_a64_de2_clk_desc, }, - /* - * The Allwinner A64 SoC needs some bit to be poke in syscon to make - * DE2 really working. - * So there's currently no A64 compatible here. - * H5 shares the same reset line with A64, so here H5 is using the - * clock description of A64. - */ + { + .compatible = "allwinner,sun50i-h6-de3-clk", + .data = &sun50i_h6_de3_clk_desc, + }, { } }; diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-de2.h b/drivers/clk/sunxi-ng/ccu-sun8i-de2.h index 530c006e0ae9..fc9c6b4c89a8 100644 --- a/drivers/clk/sunxi-ng/ccu-sun8i-de2.h +++ b/drivers/clk/sunxi-ng/ccu-sun8i-de2.h @@ -22,7 +22,9 @@ #define CLK_MIXER0_DIV 3 #define CLK_MIXER1_DIV 4 #define CLK_WB_DIV 5 +#define CLK_ROT_DIV 11 -#define CLK_NUMBER (CLK_WB + 1) +#define CLK_NUMBER_WITH_ROT (CLK_ROT_DIV + 1) +#define CLK_NUMBER_WITHOUT_ROT (CLK_WB + 1) #endif /* _CCU_SUN8I_DE2_H_ */ diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-h3.c b/drivers/clk/sunxi-ng/ccu-sun8i-h3.c index 77ed0b0ba681..e71e2451c2e3 100644 --- a/drivers/clk/sunxi-ng/ccu-sun8i-h3.c +++ b/drivers/clk/sunxi-ng/ccu-sun8i-h3.c @@ -69,18 +69,19 @@ static SUNXI_CCU_NM_WITH_SDM_GATE_LOCK(pll_audio_base_clk, "pll-audio-base", BIT(28), /* lock */ CLK_SET_RATE_UNGATE); -static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN(pll_video_clk, "pll-video", - "osc24M", 0x0010, - 192000000, /* Minimum rate */ - 8, 7, /* N */ - 0, 4, /* M */ - BIT(24), /* frac enable */ - BIT(25), /* frac select */ - 270000000, /* frac rate 0 */ - 297000000, /* frac rate 1 */ - BIT(31), /* gate */ - BIT(28), /* lock */ - CLK_SET_RATE_UNGATE); +static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX(pll_video_clk, "pll-video", + "osc24M", 0x0010, + 192000000, /* Minimum rate */ + 912000000, /* Maximum rate */ + 8, 7, /* N */ + 0, 4, /* M */ + BIT(24), /* frac enable */ + BIT(25), /* frac select */ + 270000000, /* frac rate 0 */ + 297000000, /* frac rate 1 */ + BIT(31), /* gate */ + BIT(28), /* lock */ + CLK_SET_RATE_UNGATE); static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_ve_clk, "pll-ve", "osc24M", 0x0018, @@ -475,12 +476,12 @@ static const char * const csi_sclk_parents[] = { "pll-periph0", "pll-periph1" }; static SUNXI_CCU_M_WITH_MUX_GATE(csi_sclk_clk, "csi-sclk", csi_sclk_parents, 0x134, 16, 4, 24, 3, BIT(31), 0); -static const char * const csi_mclk_parents[] = { "osc24M", "pll-video", "pll-periph0" }; +static const char * const csi_mclk_parents[] = { "osc24M", "pll-video", "pll-periph1" }; static SUNXI_CCU_M_WITH_MUX_GATE(csi_mclk_clk, "csi-mclk", csi_mclk_parents, 0x134, 0, 5, 8, 3, BIT(15), 0); static SUNXI_CCU_M_WITH_GATE(ve_clk, "ve", "pll-ve", - 0x13c, 16, 3, BIT(31), 0); + 0x13c, 16, 3, BIT(31), CLK_SET_RATE_PARENT); static SUNXI_CCU_GATE(ac_dig_clk, "ac-dig", "pll-audio", 0x140, BIT(31), CLK_SET_RATE_PARENT); diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-r40.c b/drivers/clk/sunxi-ng/ccu-sun8i-r40.c index 933f2e68f42a..a22d11aa38ba 100644 --- a/drivers/clk/sunxi-ng/ccu-sun8i-r40.c +++ b/drivers/clk/sunxi-ng/ccu-sun8i-r40.c @@ -12,7 +12,8 @@ */ #include <linux/clk-provider.h> -#include <linux/of_address.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> #include "ccu_common.h" #include "ccu_reset.h" @@ -64,18 +65,19 @@ static SUNXI_CCU_NM_WITH_GATE_LOCK(pll_audio_base_clk, "pll-audio-base", BIT(28), /* lock */ CLK_SET_RATE_UNGATE); -/* TODO: The result of N/M is required to be in [8, 25] range. */ -static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_video0_clk, "pll-video0", - "osc24M", 0x0010, - 8, 7, /* N */ - 0, 4, /* M */ - BIT(24), /* frac enable */ - BIT(25), /* frac select */ - 270000000, /* frac rate 0 */ - 297000000, /* frac rate 1 */ - BIT(31), /* gate */ - BIT(28), /* lock */ - CLK_SET_RATE_UNGATE); +static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX(pll_video0_clk, "pll-video0", + "osc24M", 0x0010, + 192000000, /* Minimum rate */ + 1008000000, /* Maximum rate */ + 8, 7, /* N */ + 0, 4, /* M */ + BIT(24), /* frac enable */ + BIT(25), /* frac select */ + 270000000, /* frac rate 0 */ + 297000000, /* frac rate 1 */ + BIT(31), /* gate */ + BIT(28), /* lock */ + CLK_SET_RATE_UNGATE); /* TODO: The result of N/M is required to be in [8, 25] range. */ static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_ve_clk, "pll-ve", @@ -150,18 +152,19 @@ static struct ccu_nk pll_periph1_clk = { }, }; -/* TODO: The result of N/M is required to be in [8, 25] range. */ -static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_video1_clk, "pll-video1", - "osc24M", 0x030, - 8, 7, /* N */ - 0, 4, /* M */ - BIT(24), /* frac enable */ - BIT(25), /* frac select */ - 270000000, /* frac rate 0 */ - 297000000, /* frac rate 1 */ - BIT(31), /* gate */ - BIT(28), /* lock */ - CLK_SET_RATE_UNGATE); +static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX(pll_video1_clk, "pll-video1", + "osc24M", 0x030, + 192000000, /* Minimum rate */ + 1008000000, /* Maximum rate */ + 8, 7, /* N */ + 0, 4, /* M */ + BIT(24), /* frac enable */ + BIT(25), /* frac select */ + 270000000, /* frac rate 0 */ + 297000000, /* frac rate 1 */ + BIT(31), /* gate */ + BIT(28), /* lock */ + CLK_SET_RATE_UNGATE); static struct ccu_nkm pll_sata_clk = { .enable = BIT(31), @@ -653,7 +656,8 @@ static SUNXI_CCU_GATE(dram_deinterlace_clk, "dram-deinterlace", "dram", static const char * const de_parents[] = { "pll-periph0-2x", "pll-de" }; static SUNXI_CCU_M_WITH_MUX_GATE(de_clk, "de", de_parents, - 0x104, 0, 4, 24, 3, BIT(31), 0); + 0x104, 0, 4, 24, 3, BIT(31), + CLK_SET_RATE_PARENT); static SUNXI_CCU_M_WITH_MUX_GATE(mp_clk, "mp", de_parents, 0x108, 0, 4, 24, 3, BIT(31), 0); @@ -665,9 +669,11 @@ static SUNXI_CCU_MUX_WITH_GATE(tcon_lcd0_clk, "tcon-lcd0", tcon_parents, static SUNXI_CCU_MUX_WITH_GATE(tcon_lcd1_clk, "tcon-lcd1", tcon_parents, 0x114, 24, 3, BIT(31), CLK_SET_RATE_PARENT); static SUNXI_CCU_M_WITH_MUX_GATE(tcon_tv0_clk, "tcon-tv0", tcon_parents, - 0x118, 0, 4, 24, 3, BIT(31), 0); + 0x118, 0, 4, 24, 3, BIT(31), + CLK_SET_RATE_PARENT); static SUNXI_CCU_M_WITH_MUX_GATE(tcon_tv1_clk, "tcon-tv1", tcon_parents, - 0x11c, 0, 4, 24, 3, BIT(31), 0); + 0x11c, 0, 4, 24, 3, BIT(31), + CLK_SET_RATE_PARENT); static const char * const deinterlace_parents[] = { "pll-periph0", "pll-periph1" }; @@ -697,7 +703,8 @@ static SUNXI_CCU_GATE(avs_clk, "avs", "osc24M", static const char * const hdmi_parents[] = { "pll-video0", "pll-video1" }; static SUNXI_CCU_M_WITH_MUX_GATE(hdmi_clk, "hdmi", hdmi_parents, - 0x150, 0, 4, 24, 2, BIT(31), 0); + 0x150, 0, 4, 24, 2, BIT(31), + CLK_SET_RATE_PARENT); static SUNXI_CCU_GATE(hdmi_slow_clk, "hdmi-slow", "osc24M", 0x154, BIT(31), 0); @@ -1250,17 +1257,48 @@ static struct ccu_mux_nb sun8i_r40_cpu_nb = { .bypass_index = 1, /* index of 24 MHz oscillator */ }; -static void __init sun8i_r40_ccu_setup(struct device_node *node) +/* + * Add a regmap for the GMAC driver (dwmac-sun8i) to access the + * GMAC configuration register. + * Only this register is allowed to be written, in order to + * prevent overriding critical clock configuration. + */ + +#define SUN8I_R40_GMAC_CFG_REG 0x164 +static bool sun8i_r40_ccu_regmap_accessible_reg(struct device *dev, + unsigned int reg) +{ + if (reg == SUN8I_R40_GMAC_CFG_REG) + return true; + return false; +} + +static struct regmap_config sun8i_r40_ccu_regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .max_register = 0x320, /* PLL_LOCK_CTRL_REG */ + + /* other devices have no business accessing other registers */ + .readable_reg = sun8i_r40_ccu_regmap_accessible_reg, + .writeable_reg = sun8i_r40_ccu_regmap_accessible_reg, +}; + +#define SUN8I_R40_SYS_32K_CLK_REG 0x310 +#define SUN8I_R40_SYS_32K_CLK_KEY (0x16AA << 16) + +static int sun8i_r40_ccu_probe(struct platform_device *pdev) { + struct resource *res; + struct regmap *regmap; void __iomem *reg; u32 val; + int ret; - reg = of_io_request_and_map(node, 0, of_node_full_name(node)); - if (IS_ERR(reg)) { - pr_err("%s: Could not map the clock registers\n", - of_node_full_name(node)); - return; - } + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + reg = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(reg)) + return PTR_ERR(reg); /* Force the PLL-Audio-1x divider to 4 */ val = readl(reg + SUN8I_R40_PLL_AUDIO_REG); @@ -1277,7 +1315,22 @@ static void __init sun8i_r40_ccu_setup(struct device_node *node) val &= ~GENMASK(25, 20); writel(val, reg + SUN8I_R40_USB_CLK_REG); - sunxi_ccu_probe(node, reg, &sun8i_r40_ccu_desc); + /* + * Force SYS 32k (otherwise known as LOSC throughout the CCU) + * clock parent to LOSC output from RTC module instead of the + * CCU's internal RC oscillator divided output. + */ + writel(SUN8I_R40_SYS_32K_CLK_KEY | BIT(8), + reg + SUN8I_R40_SYS_32K_CLK_REG); + + regmap = devm_regmap_init_mmio(&pdev->dev, reg, + &sun8i_r40_ccu_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + ret = sunxi_ccu_probe(pdev->dev.of_node, reg, &sun8i_r40_ccu_desc); + if (ret) + return ret; /* Gate then ungate PLL CPU after any rate changes */ ccu_pll_notifier_register(&sun8i_r40_pll_cpu_nb); @@ -1285,6 +1338,20 @@ static void __init sun8i_r40_ccu_setup(struct device_node *node) /* Reparent CPU during PLL CPU rate changes */ ccu_mux_notifier_register(pll_cpu_clk.common.hw.clk, &sun8i_r40_cpu_nb); + + return 0; } -CLK_OF_DECLARE(sun8i_r40_ccu, "allwinner,sun8i-r40-ccu", - sun8i_r40_ccu_setup); + +static const struct of_device_id sun8i_r40_ccu_ids[] = { + { .compatible = "allwinner,sun8i-r40-ccu" }, + { } +}; + +static struct platform_driver sun8i_r40_ccu_driver = { + .probe = sun8i_r40_ccu_probe, + .driver = { + .name = "sun8i-r40-ccu", + .of_match_table = sun8i_r40_ccu_ids, + }, +}; +builtin_platform_driver(sun8i_r40_ccu_driver); diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-r40.h b/drivers/clk/sunxi-ng/ccu-sun8i-r40.h index 0db8e1e97af8..db2a1243f9ff 100644 --- a/drivers/clk/sunxi-ng/ccu-sun8i-r40.h +++ b/drivers/clk/sunxi-ng/ccu-sun8i-r40.h @@ -25,7 +25,9 @@ #define CLK_PLL_AUDIO_2X 4 #define CLK_PLL_AUDIO_4X 5 #define CLK_PLL_AUDIO_8X 6 -#define CLK_PLL_VIDEO0 7 + +/* PLL_VIDEO0 is exported */ + #define CLK_PLL_VIDEO0_2X 8 #define CLK_PLL_VE 9 #define CLK_PLL_DDR0 10 @@ -34,7 +36,9 @@ #define CLK_PLL_PERIPH0_2X 13 #define CLK_PLL_PERIPH1 14 #define CLK_PLL_PERIPH1_2X 15 -#define CLK_PLL_VIDEO1 16 + +/* PLL_VIDEO1 is exported */ + #define CLK_PLL_VIDEO1_2X 17 #define CLK_PLL_SATA 18 #define CLK_PLL_SATA_OUT 19 diff --git a/drivers/clk/sunxi-ng/ccu-suniv-f1c100s.c b/drivers/clk/sunxi-ng/ccu-suniv-f1c100s.c new file mode 100644 index 000000000000..a09dfbe36402 --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu-suniv-f1c100s.c @@ -0,0 +1,541 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2016 Icenowy Zheng <icenowy@aosc.io> + * + */ + +#include <linux/clk-provider.h> +#include <linux/of_address.h> + +#include "ccu_common.h" +#include "ccu_reset.h" + +#include "ccu_div.h" +#include "ccu_gate.h" +#include "ccu_mp.h" +#include "ccu_mult.h" +#include "ccu_nk.h" +#include "ccu_nkm.h" +#include "ccu_nkmp.h" +#include "ccu_nm.h" +#include "ccu_phase.h" + +#include "ccu-suniv-f1c100s.h" + +static struct ccu_nkmp pll_cpu_clk = { + .enable = BIT(31), + .lock = BIT(28), + + .n = _SUNXI_CCU_MULT(8, 5), + .k = _SUNXI_CCU_MULT(4, 2), + .m = _SUNXI_CCU_DIV(0, 2), + /* MAX is guessed by the BSP table */ + .p = _SUNXI_CCU_DIV_MAX(16, 2, 4), + + .common = { + .reg = 0x000, + .hw.init = CLK_HW_INIT("pll-cpu", "osc24M", + &ccu_nkmp_ops, + CLK_SET_RATE_UNGATE), + }, +}; + +/* + * The Audio PLL is supposed to have 4 outputs: 3 fixed factors from + * the base (2x, 4x and 8x), and one variable divider (the one true + * pll audio). + * + * We don't have any need for the variable divider for now, so we just + * hardcode it to match with the clock names + */ +#define SUNIV_PLL_AUDIO_REG 0x008 + +static SUNXI_CCU_NM_WITH_GATE_LOCK(pll_audio_base_clk, "pll-audio-base", + "osc24M", 0x008, + 8, 7, /* N */ + 0, 5, /* M */ + BIT(31), /* gate */ + BIT(28), /* lock */ + CLK_SET_RATE_UNGATE); + +static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_video_clk, "pll-video", + "osc24M", 0x010, + 8, 7, /* N */ + 0, 4, /* M */ + BIT(24), /* frac enable */ + BIT(25), /* frac select */ + 270000000, /* frac rate 0 */ + 297000000, /* frac rate 1 */ + BIT(31), /* gate */ + BIT(28), /* lock */ + CLK_SET_RATE_UNGATE); + +static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_ve_clk, "pll-ve", + "osc24M", 0x018, + 8, 7, /* N */ + 0, 4, /* M */ + BIT(24), /* frac enable */ + BIT(25), /* frac select */ + 270000000, /* frac rate 0 */ + 297000000, /* frac rate 1 */ + BIT(31), /* gate */ + BIT(28), /* lock */ + CLK_SET_RATE_UNGATE); + +static SUNXI_CCU_NKM_WITH_GATE_LOCK(pll_ddr0_clk, "pll-ddr", + "osc24M", 0x020, + 8, 5, /* N */ + 4, 2, /* K */ + 0, 2, /* M */ + BIT(31), /* gate */ + BIT(28), /* lock */ + CLK_IS_CRITICAL); + +static struct ccu_nk pll_periph_clk = { + .enable = BIT(31), + .lock = BIT(28), + .k = _SUNXI_CCU_MULT(4, 2), + .n = _SUNXI_CCU_MULT(8, 5), + .common = { + .reg = 0x028, + .hw.init = CLK_HW_INIT("pll-periph", "osc24M", + &ccu_nk_ops, 0), + }, +}; + +static const char * const cpu_parents[] = { "osc32k", "osc24M", + "pll-cpu", "pll-cpu" }; +static SUNXI_CCU_MUX(cpu_clk, "cpu", cpu_parents, + 0x050, 16, 2, CLK_IS_CRITICAL | CLK_SET_RATE_PARENT); + +static const char * const ahb_parents[] = { "osc32k", "osc24M", + "cpu", "pll-periph" }; +static const struct ccu_mux_var_prediv ahb_predivs[] = { + { .index = 3, .shift = 6, .width = 2 }, +}; +static struct ccu_div ahb_clk = { + .div = _SUNXI_CCU_DIV_FLAGS(4, 2, CLK_DIVIDER_POWER_OF_TWO), + + .mux = { + .shift = 12, + .width = 2, + + .var_predivs = ahb_predivs, + .n_var_predivs = ARRAY_SIZE(ahb_predivs), + }, + + .common = { + .reg = 0x054, + .features = CCU_FEATURE_VARIABLE_PREDIV, + .hw.init = CLK_HW_INIT_PARENTS("ahb", + ahb_parents, + &ccu_div_ops, + 0), + }, +}; + +static struct clk_div_table apb_div_table[] = { + { .val = 0, .div = 2 }, + { .val = 1, .div = 2 }, + { .val = 2, .div = 4 }, + { .val = 3, .div = 8 }, + { /* Sentinel */ }, +}; +static SUNXI_CCU_DIV_TABLE(apb_clk, "apb", "ahb", + 0x054, 8, 2, apb_div_table, 0); + +static SUNXI_CCU_GATE(bus_dma_clk, "bus-dma", "ahb", + 0x060, BIT(6), 0); +static SUNXI_CCU_GATE(bus_mmc0_clk, "bus-mmc0", "ahb", + 0x060, BIT(8), 0); +static SUNXI_CCU_GATE(bus_mmc1_clk, "bus-mmc1", "ahb", + 0x060, BIT(9), 0); +static SUNXI_CCU_GATE(bus_dram_clk, "bus-dram", "ahb", + 0x060, BIT(14), 0); +static SUNXI_CCU_GATE(bus_spi0_clk, "bus-spi0", "ahb", + 0x060, BIT(20), 0); +static SUNXI_CCU_GATE(bus_spi1_clk, "bus-spi1", "ahb", + 0x060, BIT(21), 0); +static SUNXI_CCU_GATE(bus_otg_clk, "bus-otg", "ahb", + 0x060, BIT(24), 0); + +static SUNXI_CCU_GATE(bus_ve_clk, "bus-ve", "ahb", + 0x064, BIT(0), 0); +static SUNXI_CCU_GATE(bus_lcd_clk, "bus-lcd", "ahb", + 0x064, BIT(4), 0); +static SUNXI_CCU_GATE(bus_deinterlace_clk, "bus-deinterlace", "ahb", + 0x064, BIT(5), 0); +static SUNXI_CCU_GATE(bus_csi_clk, "bus-csi", "ahb", + 0x064, BIT(8), 0); +static SUNXI_CCU_GATE(bus_tvd_clk, "bus-tvd", "ahb", + 0x064, BIT(9), 0); +static SUNXI_CCU_GATE(bus_tve_clk, "bus-tve", "ahb", + 0x064, BIT(10), 0); +static SUNXI_CCU_GATE(bus_de_be_clk, "bus-de-be", "ahb", + 0x064, BIT(12), 0); +static SUNXI_CCU_GATE(bus_de_fe_clk, "bus-de-fe", "ahb", + 0x064, BIT(14), 0); + +static SUNXI_CCU_GATE(bus_codec_clk, "bus-codec", "apb", + 0x068, BIT(0), 0); +static SUNXI_CCU_GATE(bus_spdif_clk, "bus-spdif", "apb", + 0x068, BIT(1), 0); +static SUNXI_CCU_GATE(bus_ir_clk, "bus-ir", "apb", + 0x068, BIT(2), 0); +static SUNXI_CCU_GATE(bus_rsb_clk, "bus-rsb", "apb", + 0x068, BIT(3), 0); +static SUNXI_CCU_GATE(bus_i2s0_clk, "bus-i2s0", "apb", + 0x068, BIT(12), 0); +static SUNXI_CCU_GATE(bus_i2c0_clk, "bus-i2c0", "apb", + 0x068, BIT(16), 0); +static SUNXI_CCU_GATE(bus_i2c1_clk, "bus-i2c1", "apb", + 0x068, BIT(17), 0); +static SUNXI_CCU_GATE(bus_i2c2_clk, "bus-i2c2", "apb", + 0x068, BIT(18), 0); +static SUNXI_CCU_GATE(bus_pio_clk, "bus-pio", "apb", + 0x068, BIT(19), 0); +static SUNXI_CCU_GATE(bus_uart0_clk, "bus-uart0", "apb", + 0x068, BIT(20), 0); +static SUNXI_CCU_GATE(bus_uart1_clk, "bus-uart1", "apb", + 0x068, BIT(21), 0); +static SUNXI_CCU_GATE(bus_uart2_clk, "bus-uart2", "apb", + 0x068, BIT(22), 0); + +static const char * const mod0_default_parents[] = { "osc24M", "pll-periph" }; +static SUNXI_CCU_MP_WITH_MUX_GATE(mmc0_clk, "mmc0", mod0_default_parents, 0x088, + 0, 4, /* M */ + 16, 2, /* P */ + 24, 2, /* mux */ + BIT(31), /* gate */ + 0); + +static SUNXI_CCU_PHASE(mmc0_sample_clk, "mmc0_sample", "mmc0", + 0x088, 20, 3, 0); +static SUNXI_CCU_PHASE(mmc0_output_clk, "mmc0_output", "mmc0", + 0x088, 8, 3, 0); + +static SUNXI_CCU_MP_WITH_MUX_GATE(mmc1_clk, "mmc1", mod0_default_parents, 0x08c, + 0, 4, /* M */ + 16, 2, /* P */ + 24, 2, /* mux */ + BIT(31), /* gate */ + 0); + +static SUNXI_CCU_PHASE(mmc1_sample_clk, "mmc1_sample", "mmc1", + 0x08c, 20, 3, 0); +static SUNXI_CCU_PHASE(mmc1_output_clk, "mmc1_output", "mmc1", + 0x08c, 8, 3, 0); + +static const char * const i2s_spdif_parents[] = { "pll-audio-8x", + "pll-audio-4x", + "pll-audio-2x", + "pll-audio" }; + +static SUNXI_CCU_MUX_WITH_GATE(i2s_clk, "i2s", i2s_spdif_parents, + 0x0b0, 16, 2, BIT(31), 0); + +static SUNXI_CCU_MUX_WITH_GATE(spdif_clk, "spdif", i2s_spdif_parents, + 0x0b4, 16, 2, BIT(31), 0); + +/* The BSP header file has a CIR_CFG, but no mod clock uses this definition */ + +static SUNXI_CCU_GATE(usb_phy0_clk, "usb-phy0", "osc24M", + 0x0cc, BIT(8), 0); + +static SUNXI_CCU_GATE(dram_ve_clk, "dram-ve", "pll-ddr", + 0x100, BIT(0), 0); +static SUNXI_CCU_GATE(dram_csi_clk, "dram-csi", "pll-ddr", + 0x100, BIT(1), 0); +static SUNXI_CCU_GATE(dram_deinterlace_clk, "dram-deinterlace", + "pll-ddr", 0x100, BIT(2), 0); +static SUNXI_CCU_GATE(dram_tvd_clk, "dram-tvd", "pll-ddr", + 0x100, BIT(3), 0); +static SUNXI_CCU_GATE(dram_de_fe_clk, "dram-de-fe", "pll-ddr", + 0x100, BIT(24), 0); +static SUNXI_CCU_GATE(dram_de_be_clk, "dram-de-be", "pll-ddr", + 0x100, BIT(26), 0); + +static const char * const de_parents[] = { "pll-video", "pll-periph" }; +static const u8 de_table[] = { 0, 2, }; +static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(de_be_clk, "de-be", + de_parents, de_table, + 0x104, 0, 4, 24, 3, BIT(31), 0); + +static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(de_fe_clk, "de-fe", + de_parents, de_table, + 0x10c, 0, 4, 24, 3, BIT(31), 0); + +static const char * const tcon_parents[] = { "pll-video", "pll-video-2x" }; +static const u8 tcon_table[] = { 0, 2, }; +static SUNXI_CCU_MUX_TABLE_WITH_GATE(tcon_clk, "tcon", + tcon_parents, tcon_table, + 0x118, 24, 3, BIT(31), + CLK_SET_RATE_PARENT); + +static const char * const deinterlace_parents[] = { "pll-video", + "pll-video-2x" }; +static const u8 deinterlace_table[] = { 0, 2, }; +static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(deinterlace_clk, "deinterlace", + deinterlace_parents, deinterlace_table, + 0x11c, 0, 4, 24, 3, BIT(31), 0); + +static const char * const tve_clk2_parents[] = { "pll-video", + "pll-video-2x" }; +static const u8 tve_clk2_table[] = { 0, 2, }; +static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(tve_clk2_clk, "tve-clk2", + tve_clk2_parents, tve_clk2_table, + 0x120, 0, 4, 24, 3, BIT(31), 0); +static SUNXI_CCU_M_WITH_GATE(tve_clk1_clk, "tve-clk1", "tve-clk2", + 0x120, 8, 1, BIT(15), 0); + +static const char * const tvd_parents[] = { "pll-video", "osc24M", + "pll-video-2x" }; +static SUNXI_CCU_M_WITH_MUX_GATE(tvd_clk, "tvd", tvd_parents, + 0x124, 0, 4, 24, 3, BIT(31), 0); + +static const char * const csi_parents[] = { "pll-video", "osc24M" }; +static const u8 csi_table[] = { 0, 5, }; +static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(csi_clk, "csi", csi_parents, csi_table, + 0x120, 0, 4, 8, 3, BIT(15), 0); + +/* + * TODO: BSP says the parent is pll-audio, however common sense and experience + * told us it should be pll-ve. pll-ve is totally not used in BSP code. + */ +static SUNXI_CCU_GATE(ve_clk, "ve", "pll-audio", 0x13c, BIT(31), 0); + +static SUNXI_CCU_GATE(codec_clk, "codec", "pll-audio", 0x140, BIT(31), 0); + +static SUNXI_CCU_GATE(avs_clk, "avs", "osc24M", 0x144, BIT(31), 0); + +static struct ccu_common *suniv_ccu_clks[] = { + &pll_cpu_clk.common, + &pll_audio_base_clk.common, + &pll_video_clk.common, + &pll_ve_clk.common, + &pll_ddr0_clk.common, + &pll_periph_clk.common, + &cpu_clk.common, + &ahb_clk.common, + &apb_clk.common, + &bus_dma_clk.common, + &bus_mmc0_clk.common, + &bus_mmc1_clk.common, + &bus_dram_clk.common, + &bus_spi0_clk.common, + &bus_spi1_clk.common, + &bus_otg_clk.common, + &bus_ve_clk.common, + &bus_lcd_clk.common, + &bus_deinterlace_clk.common, + &bus_csi_clk.common, + &bus_tve_clk.common, + &bus_tvd_clk.common, + &bus_de_be_clk.common, + &bus_de_fe_clk.common, + &bus_codec_clk.common, + &bus_spdif_clk.common, + &bus_ir_clk.common, + &bus_rsb_clk.common, + &bus_i2s0_clk.common, + &bus_i2c0_clk.common, + &bus_i2c1_clk.common, + &bus_i2c2_clk.common, + &bus_pio_clk.common, + &bus_uart0_clk.common, + &bus_uart1_clk.common, + &bus_uart2_clk.common, + &mmc0_clk.common, + &mmc0_sample_clk.common, + &mmc0_output_clk.common, + &mmc1_clk.common, + &mmc1_sample_clk.common, + &mmc1_output_clk.common, + &i2s_clk.common, + &spdif_clk.common, + &usb_phy0_clk.common, + &dram_ve_clk.common, + &dram_csi_clk.common, + &dram_deinterlace_clk.common, + &dram_tvd_clk.common, + &dram_de_fe_clk.common, + &dram_de_be_clk.common, + &de_be_clk.common, + &de_fe_clk.common, + &tcon_clk.common, + &deinterlace_clk.common, + &tve_clk2_clk.common, + &tve_clk1_clk.common, + &tvd_clk.common, + &csi_clk.common, + &ve_clk.common, + &codec_clk.common, + &avs_clk.common, +}; + +static CLK_FIXED_FACTOR(pll_audio_clk, "pll-audio", + "pll-audio-base", 4, 1, CLK_SET_RATE_PARENT); +static CLK_FIXED_FACTOR(pll_audio_2x_clk, "pll-audio-2x", + "pll-audio-base", 2, 1, CLK_SET_RATE_PARENT); +static CLK_FIXED_FACTOR(pll_audio_4x_clk, "pll-audio-4x", + "pll-audio-base", 1, 1, CLK_SET_RATE_PARENT); +static CLK_FIXED_FACTOR(pll_audio_8x_clk, "pll-audio-8x", + "pll-audio-base", 1, 2, CLK_SET_RATE_PARENT); +static CLK_FIXED_FACTOR(pll_video_2x_clk, "pll-video-2x", + "pll-video", 1, 2, 0); + +static struct clk_hw_onecell_data suniv_hw_clks = { + .hws = { + [CLK_PLL_CPU] = &pll_cpu_clk.common.hw, + [CLK_PLL_AUDIO_BASE] = &pll_audio_base_clk.common.hw, + [CLK_PLL_AUDIO] = &pll_audio_clk.hw, + [CLK_PLL_AUDIO_2X] = &pll_audio_2x_clk.hw, + [CLK_PLL_AUDIO_4X] = &pll_audio_4x_clk.hw, + [CLK_PLL_AUDIO_8X] = &pll_audio_8x_clk.hw, + [CLK_PLL_VIDEO] = &pll_video_clk.common.hw, + [CLK_PLL_VIDEO_2X] = &pll_video_2x_clk.hw, + [CLK_PLL_VE] = &pll_ve_clk.common.hw, + [CLK_PLL_DDR0] = &pll_ddr0_clk.common.hw, + [CLK_PLL_PERIPH] = &pll_periph_clk.common.hw, + [CLK_CPU] = &cpu_clk.common.hw, + [CLK_AHB] = &ahb_clk.common.hw, + [CLK_APB] = &apb_clk.common.hw, + [CLK_BUS_DMA] = &bus_dma_clk.common.hw, + [CLK_BUS_MMC0] = &bus_mmc0_clk.common.hw, + [CLK_BUS_MMC1] = &bus_mmc1_clk.common.hw, + [CLK_BUS_DRAM] = &bus_dram_clk.common.hw, + [CLK_BUS_SPI0] = &bus_spi0_clk.common.hw, + [CLK_BUS_SPI1] = &bus_spi1_clk.common.hw, + [CLK_BUS_OTG] = &bus_otg_clk.common.hw, + [CLK_BUS_VE] = &bus_ve_clk.common.hw, + [CLK_BUS_LCD] = &bus_lcd_clk.common.hw, + [CLK_BUS_DEINTERLACE] = &bus_deinterlace_clk.common.hw, + [CLK_BUS_CSI] = &bus_csi_clk.common.hw, + [CLK_BUS_TVD] = &bus_tvd_clk.common.hw, + [CLK_BUS_TVE] = &bus_tve_clk.common.hw, + [CLK_BUS_DE_BE] = &bus_de_be_clk.common.hw, + [CLK_BUS_DE_FE] = &bus_de_fe_clk.common.hw, + [CLK_BUS_CODEC] = &bus_codec_clk.common.hw, + [CLK_BUS_SPDIF] = &bus_spdif_clk.common.hw, + [CLK_BUS_IR] = &bus_ir_clk.common.hw, + [CLK_BUS_RSB] = &bus_rsb_clk.common.hw, + [CLK_BUS_I2S0] = &bus_i2s0_clk.common.hw, + [CLK_BUS_I2C0] = &bus_i2c0_clk.common.hw, + [CLK_BUS_I2C1] = &bus_i2c1_clk.common.hw, + [CLK_BUS_I2C2] = &bus_i2c2_clk.common.hw, + [CLK_BUS_PIO] = &bus_pio_clk.common.hw, + [CLK_BUS_UART0] = &bus_uart0_clk.common.hw, + [CLK_BUS_UART1] = &bus_uart1_clk.common.hw, + [CLK_BUS_UART2] = &bus_uart2_clk.common.hw, + [CLK_MMC0] = &mmc0_clk.common.hw, + [CLK_MMC0_SAMPLE] = &mmc0_sample_clk.common.hw, + [CLK_MMC0_OUTPUT] = &mmc0_output_clk.common.hw, + [CLK_MMC1] = &mmc1_clk.common.hw, + [CLK_MMC1_SAMPLE] = &mmc1_sample_clk.common.hw, + [CLK_MMC1_OUTPUT] = &mmc1_output_clk.common.hw, + [CLK_I2S] = &i2s_clk.common.hw, + [CLK_SPDIF] = &spdif_clk.common.hw, + [CLK_USB_PHY0] = &usb_phy0_clk.common.hw, + [CLK_DRAM_VE] = &dram_ve_clk.common.hw, + [CLK_DRAM_CSI] = &dram_csi_clk.common.hw, + [CLK_DRAM_DEINTERLACE] = &dram_deinterlace_clk.common.hw, + [CLK_DRAM_TVD] = &dram_tvd_clk.common.hw, + [CLK_DRAM_DE_FE] = &dram_de_fe_clk.common.hw, + [CLK_DRAM_DE_BE] = &dram_de_be_clk.common.hw, + [CLK_DE_BE] = &de_be_clk.common.hw, + [CLK_DE_FE] = &de_fe_clk.common.hw, + [CLK_TCON] = &tcon_clk.common.hw, + [CLK_DEINTERLACE] = &deinterlace_clk.common.hw, + [CLK_TVE2_CLK] = &tve_clk2_clk.common.hw, + [CLK_TVE1_CLK] = &tve_clk1_clk.common.hw, + [CLK_TVD] = &tvd_clk.common.hw, + [CLK_CSI] = &csi_clk.common.hw, + [CLK_VE] = &ve_clk.common.hw, + [CLK_CODEC] = &codec_clk.common.hw, + [CLK_AVS] = &avs_clk.common.hw, + }, + .num = CLK_NUMBER, +}; + +static struct ccu_reset_map suniv_ccu_resets[] = { + [RST_USB_PHY0] = { 0x0cc, BIT(0) }, + + [RST_BUS_DMA] = { 0x2c0, BIT(6) }, + [RST_BUS_MMC0] = { 0x2c0, BIT(8) }, + [RST_BUS_MMC1] = { 0x2c0, BIT(9) }, + [RST_BUS_DRAM] = { 0x2c0, BIT(14) }, + [RST_BUS_SPI0] = { 0x2c0, BIT(20) }, + [RST_BUS_SPI1] = { 0x2c0, BIT(21) }, + [RST_BUS_OTG] = { 0x2c0, BIT(24) }, + [RST_BUS_VE] = { 0x2c4, BIT(0) }, + [RST_BUS_LCD] = { 0x2c4, BIT(4) }, + [RST_BUS_DEINTERLACE] = { 0x2c4, BIT(5) }, + [RST_BUS_CSI] = { 0x2c4, BIT(8) }, + [RST_BUS_TVD] = { 0x2c4, BIT(9) }, + [RST_BUS_TVE] = { 0x2c4, BIT(10) }, + [RST_BUS_DE_BE] = { 0x2c4, BIT(12) }, + [RST_BUS_DE_FE] = { 0x2c4, BIT(14) }, + [RST_BUS_CODEC] = { 0x2d0, BIT(0) }, + [RST_BUS_SPDIF] = { 0x2d0, BIT(1) }, + [RST_BUS_IR] = { 0x2d0, BIT(2) }, + [RST_BUS_RSB] = { 0x2d0, BIT(3) }, + [RST_BUS_I2S0] = { 0x2d0, BIT(12) }, + [RST_BUS_I2C0] = { 0x2d0, BIT(16) }, + [RST_BUS_I2C1] = { 0x2d0, BIT(17) }, + [RST_BUS_I2C2] = { 0x2d0, BIT(18) }, + [RST_BUS_UART0] = { 0x2d0, BIT(20) }, + [RST_BUS_UART1] = { 0x2d0, BIT(21) }, + [RST_BUS_UART2] = { 0x2d0, BIT(22) }, +}; + +static const struct sunxi_ccu_desc suniv_ccu_desc = { + .ccu_clks = suniv_ccu_clks, + .num_ccu_clks = ARRAY_SIZE(suniv_ccu_clks), + + .hw_clks = &suniv_hw_clks, + + .resets = suniv_ccu_resets, + .num_resets = ARRAY_SIZE(suniv_ccu_resets), +}; + +static struct ccu_pll_nb suniv_pll_cpu_nb = { + .common = &pll_cpu_clk.common, + /* copy from pll_cpu_clk */ + .enable = BIT(31), + .lock = BIT(28), +}; + +static struct ccu_mux_nb suniv_cpu_nb = { + .common = &cpu_clk.common, + .cm = &cpu_clk.mux, + .delay_us = 1, /* > 8 clock cycles at 24 MHz */ + .bypass_index = 1, /* index of 24 MHz oscillator */ +}; + +static void __init suniv_f1c100s_ccu_setup(struct device_node *node) +{ + void __iomem *reg; + u32 val; + + reg = of_io_request_and_map(node, 0, of_node_full_name(node)); + if (IS_ERR(reg)) { + pr_err("%pOF: Could not map the clock registers\n", node); + return; + } + + /* Force the PLL-Audio-1x divider to 4 */ + val = readl(reg + SUNIV_PLL_AUDIO_REG); + val &= ~GENMASK(19, 16); + writel(val | (3 << 16), reg + SUNIV_PLL_AUDIO_REG); + + sunxi_ccu_probe(node, reg, &suniv_ccu_desc); + + /* Gate then ungate PLL CPU after any rate changes */ + ccu_pll_notifier_register(&suniv_pll_cpu_nb); + + /* Reparent CPU during PLL CPU rate changes */ + ccu_mux_notifier_register(pll_cpu_clk.common.hw.clk, + &suniv_cpu_nb); +} +CLK_OF_DECLARE(suniv_f1c100s_ccu, "allwinner,suniv-f1c100s-ccu", + suniv_f1c100s_ccu_setup); diff --git a/drivers/clk/sunxi-ng/ccu-suniv-f1c100s.h b/drivers/clk/sunxi-ng/ccu-suniv-f1c100s.h new file mode 100644 index 000000000000..39d06fed55b2 --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu-suniv-f1c100s.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0+ + * + * Copyright 2017 Icenowy Zheng <icenowy@aosc.io> + * + */ + +#ifndef _CCU_SUNIV_F1C100S_H_ +#define _CCU_SUNIV_F1C100S_H_ + +#include <dt-bindings/clock/suniv-ccu-f1c100s.h> +#include <dt-bindings/reset/suniv-ccu-f1c100s.h> + +#define CLK_PLL_CPU 0 +#define CLK_PLL_AUDIO_BASE 1 +#define CLK_PLL_AUDIO 2 +#define CLK_PLL_AUDIO_2X 3 +#define CLK_PLL_AUDIO_4X 4 +#define CLK_PLL_AUDIO_8X 5 +#define CLK_PLL_VIDEO 6 +#define CLK_PLL_VIDEO_2X 7 +#define CLK_PLL_VE 8 +#define CLK_PLL_DDR0 9 +#define CLK_PLL_PERIPH 10 + +/* CPU clock is exported */ + +#define CLK_AHB 12 +#define CLK_APB 13 + +/* All bus gates, DRAM gates and mod clocks are exported */ + +#define CLK_NUMBER (CLK_AVS + 1) + +#endif /* _CCU_SUNIV_F1C100S_H_ */ diff --git a/drivers/clk/sunxi-ng/ccu_mp.c b/drivers/clk/sunxi-ng/ccu_mp.c index 5d0af4051737..0357349eb767 100644 --- a/drivers/clk/sunxi-ng/ccu_mp.c +++ b/drivers/clk/sunxi-ng/ccu_mp.c @@ -40,6 +40,61 @@ static void ccu_mp_find_best(unsigned long parent, unsigned long rate, *p = best_p; } +static unsigned long ccu_mp_find_best_with_parent_adj(struct clk_hw *hw, + unsigned long *parent, + unsigned long rate, + unsigned int max_m, + unsigned int max_p) +{ + unsigned long parent_rate_saved; + unsigned long parent_rate, now; + unsigned long best_rate = 0; + unsigned int _m, _p, div; + unsigned long maxdiv; + + parent_rate_saved = *parent; + + /* + * The maximum divider we can use without overflowing + * unsigned long in rate * m * p below + */ + maxdiv = max_m * max_p; + maxdiv = min(ULONG_MAX / rate, maxdiv); + + for (_p = 1; _p <= max_p; _p <<= 1) { + for (_m = 1; _m <= max_m; _m++) { + div = _m * _p; + + if (div > maxdiv) + break; + + if (rate * div == parent_rate_saved) { + /* + * It's the most ideal case if the requested + * rate can be divided from parent clock without + * needing to change parent rate, so return the + * divider immediately. + */ + *parent = parent_rate_saved; + return rate; + } + + parent_rate = clk_hw_round_rate(hw, rate * div); + now = parent_rate / div; + + if (now <= rate && now > best_rate) { + best_rate = now; + *parent = parent_rate; + + if (now == rate) + return rate; + } + } + } + + return best_rate; +} + static unsigned long ccu_mp_round_rate(struct ccu_mux_internal *mux, struct clk_hw *hw, unsigned long *parent_rate, @@ -56,8 +111,13 @@ static unsigned long ccu_mp_round_rate(struct ccu_mux_internal *mux, max_m = cmp->m.max ?: 1 << cmp->m.width; max_p = cmp->p.max ?: 1 << ((1 << cmp->p.width) - 1); - ccu_mp_find_best(*parent_rate, rate, max_m, max_p, &m, &p); - rate = *parent_rate / p / m; + if (!(clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT)) { + ccu_mp_find_best(*parent_rate, rate, max_m, max_p, &m, &p); + rate = *parent_rate / p / m; + } else { + rate = ccu_mp_find_best_with_parent_adj(hw, parent_rate, rate, + max_m, max_p); + } if (cmp->common.features & CCU_FEATURE_FIXED_POSTDIV) rate /= cmp->fixed_post_div; diff --git a/drivers/clk/sunxi-ng/ccu_nkmp.c b/drivers/clk/sunxi-ng/ccu_nkmp.c index ebd9436d2c7c..9b49adb20d07 100644 --- a/drivers/clk/sunxi-ng/ccu_nkmp.c +++ b/drivers/clk/sunxi-ng/ccu_nkmp.c @@ -137,6 +137,13 @@ static long ccu_nkmp_round_rate(struct clk_hw *hw, unsigned long rate, if (nkmp->common.features & CCU_FEATURE_FIXED_POSTDIV) rate *= nkmp->fixed_post_div; + if (nkmp->max_rate && rate > nkmp->max_rate) { + rate = nkmp->max_rate; + if (nkmp->common.features & CCU_FEATURE_FIXED_POSTDIV) + rate /= nkmp->fixed_post_div; + return rate; + } + _nkmp.min_n = nkmp->n.min ?: 1; _nkmp.max_n = nkmp->n.max ?: 1 << nkmp->n.width; _nkmp.min_k = nkmp->k.min ?: 1; diff --git a/drivers/clk/sunxi-ng/ccu_nkmp.h b/drivers/clk/sunxi-ng/ccu_nkmp.h index 6940503e7fc4..a9f8c116a745 100644 --- a/drivers/clk/sunxi-ng/ccu_nkmp.h +++ b/drivers/clk/sunxi-ng/ccu_nkmp.h @@ -35,6 +35,7 @@ struct ccu_nkmp { struct ccu_div_internal p; unsigned int fixed_post_div; + unsigned int max_rate; struct ccu_common common; }; diff --git a/drivers/clk/sunxi-ng/ccu_nm.c b/drivers/clk/sunxi-ng/ccu_nm.c index 4e2073307f34..424d8635b053 100644 --- a/drivers/clk/sunxi-ng/ccu_nm.c +++ b/drivers/clk/sunxi-ng/ccu_nm.c @@ -19,6 +19,17 @@ struct _ccu_nm { unsigned long m, min_m, max_m; }; +static unsigned long ccu_nm_calc_rate(unsigned long parent, + unsigned long n, unsigned long m) +{ + u64 rate = parent; + + rate *= n; + do_div(rate, m); + + return rate; +} + static void ccu_nm_find_best(unsigned long parent, unsigned long rate, struct _ccu_nm *nm) { @@ -28,7 +39,8 @@ static void ccu_nm_find_best(unsigned long parent, unsigned long rate, for (_n = nm->min_n; _n <= nm->max_n; _n++) { for (_m = nm->min_m; _m <= nm->max_m; _m++) { - unsigned long tmp_rate = parent * _n / _m; + unsigned long tmp_rate = ccu_nm_calc_rate(parent, + _n, _m); if (tmp_rate > rate) continue; @@ -100,7 +112,7 @@ static unsigned long ccu_nm_recalc_rate(struct clk_hw *hw, if (ccu_sdm_helper_is_enabled(&nm->common, &nm->sdm)) rate = ccu_sdm_helper_read_rate(&nm->common, &nm->sdm, m, n); else - rate = parent_rate * n / m; + rate = ccu_nm_calc_rate(parent_rate, n, m); if (nm->common.features & CCU_FEATURE_FIXED_POSTDIV) rate /= nm->fixed_post_div; @@ -124,6 +136,13 @@ static long ccu_nm_round_rate(struct clk_hw *hw, unsigned long rate, return rate; } + if (nm->max_rate && rate > nm->max_rate) { + rate = nm->max_rate; + if (nm->common.features & CCU_FEATURE_FIXED_POSTDIV) + rate /= nm->fixed_post_div; + return rate; + } + if (ccu_frac_helper_has_rate(&nm->common, &nm->frac, rate)) { if (nm->common.features & CCU_FEATURE_FIXED_POSTDIV) rate /= nm->fixed_post_div; @@ -142,7 +161,7 @@ static long ccu_nm_round_rate(struct clk_hw *hw, unsigned long rate, _nm.max_m = nm->m.max ?: 1 << nm->m.width; ccu_nm_find_best(*parent_rate, rate, &_nm); - rate = *parent_rate * _nm.n / _nm.m; + rate = ccu_nm_calc_rate(*parent_rate, _nm.n, _nm.m); if (nm->common.features & CCU_FEATURE_FIXED_POSTDIV) rate /= nm->fixed_post_div; diff --git a/drivers/clk/sunxi-ng/ccu_nm.h b/drivers/clk/sunxi-ng/ccu_nm.h index 1d8b459c50b7..de232f2199a6 100644 --- a/drivers/clk/sunxi-ng/ccu_nm.h +++ b/drivers/clk/sunxi-ng/ccu_nm.h @@ -38,6 +38,7 @@ struct ccu_nm { unsigned int fixed_post_div; unsigned int min_rate; + unsigned int max_rate; struct ccu_common common; }; @@ -115,6 +116,35 @@ struct ccu_nm { }, \ } +#define SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK_MIN_MAX(_struct, _name, \ + _parent, _reg, \ + _min_rate, _max_rate, \ + _nshift, _nwidth, \ + _mshift, _mwidth, \ + _frac_en, _frac_sel, \ + _frac_rate_0, \ + _frac_rate_1, \ + _gate, _lock, _flags) \ + struct ccu_nm _struct = { \ + .enable = _gate, \ + .lock = _lock, \ + .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \ + .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \ + .frac = _SUNXI_CCU_FRAC(_frac_en, _frac_sel, \ + _frac_rate_0, \ + _frac_rate_1), \ + .min_rate = _min_rate, \ + .max_rate = _max_rate, \ + .common = { \ + .reg = _reg, \ + .features = CCU_FEATURE_FRACTIONAL, \ + .hw.init = CLK_HW_INIT(_name, \ + _parent, \ + &ccu_nm_ops, \ + _flags), \ + }, \ + } + #define SUNXI_CCU_NM_WITH_GATE_LOCK(_struct, _name, _parent, _reg, \ _nshift, _nwidth, \ _mshift, _mwidth, \ |