nagai/kernel
3
0
Fork 0
forked from mirrors/linux
Code Pull requests Activity

clk: meson: S4: add support for Amlogic S4 SoC PLL clock driver

Browse source 
Add the S4 PLL clock controller driver in the S4 SoC family.

Signed-off-by: Yu Tu <yu.tu@amlogic.com>
Link: https://lore.kernel.org/r/20230904075504.23263-4-yu.tu@amlogic.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
This commit is contained in:
Yu Tu 2023-09-04 15:55:03 +08:00 committed by Jerome Brunet
parent 9894949916
commit e787c9c55e
4 changed files with 918 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

12
drivers/clk/meson/Kconfig
View file

@ -144,4 +144,16 @@ config COMMON_CLK_G12A
help help
Support for the clock controller on Amlogic S905D2, S905X2 and S905Y2 Support for the clock controller on Amlogic S905D2, S905X2 and S905Y2
devices, aka g12a. Say Y if you want peripherals to work. devices, aka g12a. Say Y if you want peripherals to work.
config COMMON_CLK_S4_PLL
tristate "S4 SoC PLL clock controllers support"
depends on ARM64
default y
select COMMON_CLK_MESON_MPLL
select COMMON_CLK_MESON_PLL
select COMMON_CLK_MESON_REGMAP
help
Support for the PLL clock controller on Amlogic S805X2 and S905Y4 devices,
AKA S4. Say Y if you want the board to work, because PLLs are the parent of
most peripherals.
endmenu endmenu

1
drivers/clk/meson/Makefile
View file

@ -22,3 +22,4 @@ obj-$(CONFIG_COMMON_CLK_A1_PERIPHERALS) += a1-peripherals.o
obj-$(CONFIG_COMMON_CLK_GXBB) += gxbb.o gxbb-aoclk.o obj-$(CONFIG_COMMON_CLK_GXBB) += gxbb.o gxbb-aoclk.o
obj-$(CONFIG_COMMON_CLK_G12A) += g12a.o g12a-aoclk.o obj-$(CONFIG_COMMON_CLK_G12A) += g12a.o g12a-aoclk.o
obj-$(CONFIG_COMMON_CLK_MESON8B) += meson8b.o meson8-ddr.o obj-$(CONFIG_COMMON_CLK_MESON8B) += meson8b.o meson8-ddr.o
obj-$(CONFIG_COMMON_CLK_S4_PLL) += s4-pll.o

867
drivers/clk/meson/s4-pll.c Normal file
View file

@ -0,0 +1,867 @@
// SPDX-License-Identifier: (GPL-2.0-only OR MIT)
/*
* Amlogic S4 PLL Clock Controller Driver
*
* Copyright (c) 2022-2023 Amlogic, inc. All rights reserved
* Author: Yu Tu <yu.tu@amlogic.com>
*/
#include <linux/clk-provider.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include "clk-mpll.h"
#include "clk-pll.h"
#include "clk-regmap.h"
#include "s4-pll.h"
#include "meson-clkc-utils.h"
#include <dt-bindings/clock/amlogic,s4-pll-clkc.h>
static DEFINE_SPINLOCK(meson_clk_lock);
/*
* These clock are a fixed value (fixed_pll is 2GHz) that is initialized by ROMcode.
* The chip was changed fixed pll for security reasons. Fixed PLL registers are not writable
* in the kernel phase. Write of fixed PLL-related register will cause the system to crash.
* Meanwhile, these clock won't ever change at runtime.
* For the above reasons, we can only use ro_ops for fixed PLL related clocks.
*/
static struct clk_regmap s4_fixed_pll_dco = {
.data = &(struct meson_clk_pll_data){
.en = {
.reg_off = ANACTRL_FIXPLL_CTRL0,
.shift = 28,
.width = 1,
},
.m = {
.reg_off = ANACTRL_FIXPLL_CTRL0,
.shift = 0,
.width = 8,
},
.n = {
.reg_off = ANACTRL_FIXPLL_CTRL0,
.shift = 10,
.width = 5,
},
.l = {
.reg_off = ANACTRL_FIXPLL_CTRL0,
.shift = 31,
.width = 1,
},
.rst = {
.reg_off = ANACTRL_FIXPLL_CTRL0,
.shift = 29,
.width = 1,
},
},
.hw.init = &(struct clk_init_data){
.name = "fixed_pll_dco",
.ops = &meson_clk_pll_ro_ops,
.parent_data = (const struct clk_parent_data []) {
{ .fw_name = "xtal", }
},
.num_parents = 1,
},
};
static struct clk_regmap s4_fixed_pll = {
.data = &(struct clk_regmap_div_data){
.offset = ANACTRL_FIXPLL_CTRL0,
.shift = 16,
.width = 2,
.flags = CLK_DIVIDER_POWER_OF_TWO,
},
.hw.init = &(struct clk_init_data){
.name = "fixed_pll",
.ops = &clk_regmap_divider_ro_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_fixed_pll_dco.hw
},
.num_parents = 1,
/*
* This clock won't ever change at runtime so
* CLK_SET_RATE_PARENT is not required
*/
},
};
static struct clk_fixed_factor s4_fclk_div2_div = {
.mult = 1,
.div = 2,
.hw.init = &(struct clk_init_data){
.name = "fclk_div2_div",
.ops = &clk_fixed_factor_ops,
.parent_hws = (const struct clk_hw *[]) { &s4_fixed_pll.hw },
.num_parents = 1,
},
};
static struct clk_regmap s4_fclk_div2 = {
.data = &(struct clk_regmap_gate_data){
.offset = ANACTRL_FIXPLL_CTRL1,
.bit_idx = 24,
},
.hw.init = &(struct clk_init_data){
.name = "fclk_div2",
.ops = &clk_regmap_gate_ro_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_fclk_div2_div.hw
},
.num_parents = 1,
},
};
static struct clk_fixed_factor s4_fclk_div3_div = {
.mult = 1,
.div = 3,
.hw.init = &(struct clk_init_data){
.name = "fclk_div3_div",
.ops = &clk_fixed_factor_ops,
.parent_hws = (const struct clk_hw *[]) { &s4_fixed_pll.hw },
.num_parents = 1,
},
};
static struct clk_regmap s4_fclk_div3 = {
.data = &(struct clk_regmap_gate_data){
.offset = ANACTRL_FIXPLL_CTRL1,
.bit_idx = 20,
},
.hw.init = &(struct clk_init_data){
.name = "fclk_div3",
.ops = &clk_regmap_gate_ro_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_fclk_div3_div.hw
},
.num_parents = 1,
},
};
static struct clk_fixed_factor s4_fclk_div4_div = {
.mult = 1,
.div = 4,
.hw.init = &(struct clk_init_data){
.name = "fclk_div4_div",
.ops = &clk_fixed_factor_ops,
.parent_hws = (const struct clk_hw *[]) { &s4_fixed_pll.hw },
.num_parents = 1,
},
};
static struct clk_regmap s4_fclk_div4 = {
.data = &(struct clk_regmap_gate_data){
.offset = ANACTRL_FIXPLL_CTRL1,
.bit_idx = 21,
},
.hw.init = &(struct clk_init_data){
.name = "fclk_div4",
.ops = &clk_regmap_gate_ro_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_fclk_div4_div.hw
},
.num_parents = 1,
},
};
static struct clk_fixed_factor s4_fclk_div5_div = {
.mult = 1,
.div = 5,
.hw.init = &(struct clk_init_data){
.name = "fclk_div5_div",
.ops = &clk_fixed_factor_ops,
.parent_hws = (const struct clk_hw *[]) { &s4_fixed_pll.hw },
.num_parents = 1,
},
};
static struct clk_regmap s4_fclk_div5 = {
.data = &(struct clk_regmap_gate_data){
.offset = ANACTRL_FIXPLL_CTRL1,
.bit_idx = 22,
},
.hw.init = &(struct clk_init_data){
.name = "fclk_div5",
.ops = &clk_regmap_gate_ro_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_fclk_div5_div.hw
},
.num_parents = 1,
},
};
static struct clk_fixed_factor s4_fclk_div7_div = {
.mult = 1,
.div = 7,
.hw.init = &(struct clk_init_data){
.name = "fclk_div7_div",
.ops = &clk_fixed_factor_ops,
.parent_hws = (const struct clk_hw *[]) { &s4_fixed_pll.hw },
.num_parents = 1,
},
};
static struct clk_regmap s4_fclk_div7 = {
.data = &(struct clk_regmap_gate_data){
.offset = ANACTRL_FIXPLL_CTRL1,
.bit_idx = 23,
},
.hw.init = &(struct clk_init_data){
.name = "fclk_div7",
.ops = &clk_regmap_gate_ro_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_fclk_div7_div.hw
},
.num_parents = 1,
},
};
static struct clk_fixed_factor s4_fclk_div2p5_div = {
.mult = 2,
.div = 5,
.hw.init = &(struct clk_init_data){
.name = "fclk_div2p5_div",
.ops = &clk_fixed_factor_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_fixed_pll.hw
},
.num_parents = 1,
},
};
static struct clk_regmap s4_fclk_div2p5 = {
.data = &(struct clk_regmap_gate_data){
.offset = ANACTRL_FIXPLL_CTRL1,
.bit_idx = 25,
},
.hw.init = &(struct clk_init_data){
.name = "fclk_div2p5",
.ops = &clk_regmap_gate_ro_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_fclk_div2p5_div.hw
},
.num_parents = 1,
},
};
static const struct pll_mult_range s4_gp0_pll_mult_range = {
.min = 125,
.max = 250,
};
/*
* Internal gp0 pll emulation configuration parameters
*/
static const struct reg_sequence s4_gp0_init_regs[] = {
{ .reg = ANACTRL_GP0PLL_CTRL1, .def = 0x00000000 },
{ .reg = ANACTRL_GP0PLL_CTRL2, .def = 0x00000000 },
{ .reg = ANACTRL_GP0PLL_CTRL3, .def = 0x48681c00 },
{ .reg = ANACTRL_GP0PLL_CTRL4, .def = 0x88770290 },
{ .reg = ANACTRL_GP0PLL_CTRL5, .def = 0x39272000 },
{ .reg = ANACTRL_GP0PLL_CTRL6, .def = 0x56540000 }
};
static struct clk_regmap s4_gp0_pll_dco = {
.data = &(struct meson_clk_pll_data){
.en = {
.reg_off = ANACTRL_GP0PLL_CTRL0,
.shift = 28,
.width = 1,
},
.m = {
.reg_off = ANACTRL_GP0PLL_CTRL0,
.shift = 0,
.width = 8,
},
.n = {
.reg_off = ANACTRL_GP0PLL_CTRL0,
.shift = 10,
.width = 5,
},
.l = {
.reg_off = ANACTRL_GP0PLL_CTRL0,
.shift = 31,
.width = 1,
},
.rst = {
.reg_off = ANACTRL_GP0PLL_CTRL0,
.shift = 29,
.width = 1,
},
.range = &s4_gp0_pll_mult_range,
.init_regs = s4_gp0_init_regs,
.init_count = ARRAY_SIZE(s4_gp0_init_regs),
},
.hw.init = &(struct clk_init_data){
.name = "gp0_pll_dco",
.ops = &meson_clk_pll_ops,
.parent_data = (const struct clk_parent_data []) {
{ .fw_name = "xtal", }
},
.num_parents = 1,
},
};
static struct clk_regmap s4_gp0_pll = {
.data = &(struct clk_regmap_div_data){
.offset = ANACTRL_GP0PLL_CTRL0,
.shift = 16,
.width = 3,
.flags = (CLK_DIVIDER_POWER_OF_TWO |
CLK_DIVIDER_ROUND_CLOSEST),
},
.hw.init = &(struct clk_init_data){
.name = "gp0_pll",
.ops = &clk_regmap_divider_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_gp0_pll_dco.hw
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
/*
* Internal hifi pll emulation configuration parameters
*/
static const struct reg_sequence s4_hifi_init_regs[] = {
{ .reg = ANACTRL_HIFIPLL_CTRL1, .def = 0x00010e56 },
{ .reg = ANACTRL_HIFIPLL_CTRL2, .def = 0x00000000 },
{ .reg = ANACTRL_HIFIPLL_CTRL3, .def = 0x6a285c00 },
{ .reg = ANACTRL_HIFIPLL_CTRL4, .def = 0x65771290 },
{ .reg = ANACTRL_HIFIPLL_CTRL5, .def = 0x39272000 },
{ .reg = ANACTRL_HIFIPLL_CTRL6, .def = 0x56540000 }
};
static struct clk_regmap s4_hifi_pll_dco = {
.data = &(struct meson_clk_pll_data){
.en = {
.reg_off = ANACTRL_HIFIPLL_CTRL0,
.shift = 28,
.width = 1,
},
.m = {
.reg_off = ANACTRL_HIFIPLL_CTRL0,
.shift = 0,
.width = 8,
},
.n = {
.reg_off = ANACTRL_HIFIPLL_CTRL0,
.shift = 10,
.width = 5,
},
.l = {
.reg_off = ANACTRL_HIFIPLL_CTRL0,
.shift = 31,
.width = 1,
},
.rst = {
.reg_off = ANACTRL_HIFIPLL_CTRL0,
.shift = 29,
.width = 1,
},
.range = &s4_gp0_pll_mult_range,
.init_regs = s4_hifi_init_regs,
.init_count = ARRAY_SIZE(s4_hifi_init_regs),
.flags = CLK_MESON_PLL_ROUND_CLOSEST,
},
.hw.init = &(struct clk_init_data){
.name = "hifi_pll_dco",
.ops = &meson_clk_pll_ops,
.parent_data = (const struct clk_parent_data []) {
{ .fw_name = "xtal", }
},
.num_parents = 1,
},
};
static struct clk_regmap s4_hifi_pll = {
.data = &(struct clk_regmap_div_data){
.offset = ANACTRL_HIFIPLL_CTRL0,
.shift = 16,
.width = 2,
.flags = (CLK_DIVIDER_POWER_OF_TWO |
CLK_DIVIDER_ROUND_CLOSEST),
},
.hw.init = &(struct clk_init_data){
.name = "hifi_pll",
.ops = &clk_regmap_divider_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_hifi_pll_dco.hw
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
static struct clk_regmap s4_hdmi_pll_dco = {
.data = &(struct meson_clk_pll_data){
.en = {
.reg_off = ANACTRL_HDMIPLL_CTRL0,
.shift = 28,
.width = 1,
},
.m = {
.reg_off = ANACTRL_HDMIPLL_CTRL0,
.shift = 0,
.width = 8,
},
.n = {
.reg_off = ANACTRL_HDMIPLL_CTRL0,
.shift = 10,
.width = 5,
},
.l = {
.reg_off = ANACTRL_HDMIPLL_CTRL0,
.shift = 31,
.width = 1,
},
.rst = {
.reg_off = ANACTRL_HDMIPLL_CTRL0,
.shift = 29,
.width = 1,
},
.range = &s4_gp0_pll_mult_range,
},
.hw.init = &(struct clk_init_data){
.name = "hdmi_pll_dco",
.ops = &meson_clk_pll_ops,
.parent_data = (const struct clk_parent_data []) {
{ .fw_name = "xtal", }
},
.num_parents = 1,
},
};
static struct clk_regmap s4_hdmi_pll_od = {
.data = &(struct clk_regmap_div_data){
.offset = ANACTRL_HDMIPLL_CTRL0,
.shift = 16,
.width = 4,
.flags = CLK_DIVIDER_POWER_OF_TWO,
},
.hw.init = &(struct clk_init_data){
.name = "hdmi_pll_od",
.ops = &clk_regmap_divider_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_hdmi_pll_dco.hw
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
static struct clk_regmap s4_hdmi_pll = {
.data = &(struct clk_regmap_div_data){
.offset = ANACTRL_HDMIPLL_CTRL0,
.shift = 20,
.width = 2,
.flags = CLK_DIVIDER_POWER_OF_TWO,
},
.hw.init = &(struct clk_init_data){
.name = "hdmi_pll",
.ops = &clk_regmap_divider_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_hdmi_pll_od.hw
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
static struct clk_fixed_factor s4_mpll_50m_div = {
.mult = 1,
.div = 80,
.hw.init = &(struct clk_init_data){
.name = "mpll_50m_div",
.ops = &clk_fixed_factor_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_fixed_pll_dco.hw
},
.num_parents = 1,
},
};
static struct clk_regmap s4_mpll_50m = {
.data = &(struct clk_regmap_mux_data){
.offset = ANACTRL_FIXPLL_CTRL3,
.mask = 0x1,
.shift = 5,
},
.hw.init = &(struct clk_init_data){
.name = "mpll_50m",
.ops = &clk_regmap_mux_ro_ops,
.parent_data = (const struct clk_parent_data []) {
{ .fw_name = "xtal", },
{ .hw = &s4_mpll_50m_div.hw },
},
.num_parents = 2,
},
};
static struct clk_fixed_factor s4_mpll_prediv = {
.mult = 1,
.div = 2,
.hw.init = &(struct clk_init_data){
.name = "mpll_prediv",
.ops = &clk_fixed_factor_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_fixed_pll_dco.hw
},
.num_parents = 1,
},
};
static const struct reg_sequence s4_mpll0_init_regs[] = {
{ .reg = ANACTRL_MPLL_CTRL2, .def = 0x40000033 }
};
static struct clk_regmap s4_mpll0_div = {
.data = &(struct meson_clk_mpll_data){
.sdm = {
.reg_off = ANACTRL_MPLL_CTRL1,
.shift = 0,
.width = 14,
},
.sdm_en = {
.reg_off = ANACTRL_MPLL_CTRL1,
.shift = 30,
.width = 1,
},
.n2 = {
.reg_off = ANACTRL_MPLL_CTRL1,
.shift = 20,
.width = 9,
},
.ssen = {
.reg_off = ANACTRL_MPLL_CTRL1,
.shift = 29,
.width = 1,
},
.lock = &meson_clk_lock,
.init_regs = s4_mpll0_init_regs,
.init_count = ARRAY_SIZE(s4_mpll0_init_regs),
},
.hw.init = &(struct clk_init_data){
.name = "mpll0_div",
.ops = &meson_clk_mpll_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_mpll_prediv.hw
},
.num_parents = 1,
},
};
static struct clk_regmap s4_mpll0 = {
.data = &(struct clk_regmap_gate_data){
.offset = ANACTRL_MPLL_CTRL1,
.bit_idx = 31,
},
.hw.init = &(struct clk_init_data){
.name = "mpll0",
.ops = &clk_regmap_gate_ops,
.parent_hws = (const struct clk_hw *[]) { &s4_mpll0_div.hw },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
static const struct reg_sequence s4_mpll1_init_regs[] = {
{ .reg = ANACTRL_MPLL_CTRL4, .def = 0x40000033 }
};
static struct clk_regmap s4_mpll1_div = {
.data = &(struct meson_clk_mpll_data){
.sdm = {
.reg_off = ANACTRL_MPLL_CTRL3,
.shift = 0,
.width = 14,
},
.sdm_en = {
.reg_off = ANACTRL_MPLL_CTRL3,
.shift = 30,
.width = 1,
},
.n2 = {
.reg_off = ANACTRL_MPLL_CTRL3,
.shift = 20,
.width = 9,
},
.ssen = {
.reg_off = ANACTRL_MPLL_CTRL3,
.shift = 29,
.width = 1,
},
.lock = &meson_clk_lock,
.init_regs = s4_mpll1_init_regs,
.init_count = ARRAY_SIZE(s4_mpll1_init_regs),
},
.hw.init = &(struct clk_init_data){
.name = "mpll1_div",
.ops = &meson_clk_mpll_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_mpll_prediv.hw
},
.num_parents = 1,
},
};
static struct clk_regmap s4_mpll1 = {
.data = &(struct clk_regmap_gate_data){
.offset = ANACTRL_MPLL_CTRL3,
.bit_idx = 31,
},
.hw.init = &(struct clk_init_data){
.name = "mpll1",
.ops = &clk_regmap_gate_ops,
.parent_hws = (const struct clk_hw *[]) { &s4_mpll1_div.hw },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
static const struct reg_sequence s4_mpll2_init_regs[] = {
{ .reg = ANACTRL_MPLL_CTRL6, .def = 0x40000033 }
};
static struct clk_regmap s4_mpll2_div = {
.data = &(struct meson_clk_mpll_data){
.sdm = {
.reg_off = ANACTRL_MPLL_CTRL5,
.shift = 0,
.width = 14,
},
.sdm_en = {
.reg_off = ANACTRL_MPLL_CTRL5,
.shift = 30,
.width = 1,
},
.n2 = {
.reg_off = ANACTRL_MPLL_CTRL5,
.shift = 20,
.width = 9,
},
.ssen = {
.reg_off = ANACTRL_MPLL_CTRL5,
.shift = 29,
.width = 1,
},
.lock = &meson_clk_lock,
.init_regs = s4_mpll2_init_regs,
.init_count = ARRAY_SIZE(s4_mpll2_init_regs),
},
.hw.init = &(struct clk_init_data){
.name = "mpll2_div",
.ops = &meson_clk_mpll_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_mpll_prediv.hw
},
.num_parents = 1,
},
};
static struct clk_regmap s4_mpll2 = {
.data = &(struct clk_regmap_gate_data){
.offset = ANACTRL_MPLL_CTRL5,
.bit_idx = 31,
},
.hw.init = &(struct clk_init_data){
.name = "mpll2",
.ops = &clk_regmap_gate_ops,
.parent_hws = (const struct clk_hw *[]) { &s4_mpll2_div.hw },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
static const struct reg_sequence s4_mpll3_init_regs[] = {
{ .reg = ANACTRL_MPLL_CTRL8, .def = 0x40000033 }
};
static struct clk_regmap s4_mpll3_div = {
.data = &(struct meson_clk_mpll_data){
.sdm = {
.reg_off = ANACTRL_MPLL_CTRL7,
.shift = 0,
.width = 14,
},
.sdm_en = {
.reg_off = ANACTRL_MPLL_CTRL7,
.shift = 30,
.width = 1,
},
.n2 = {
.reg_off = ANACTRL_MPLL_CTRL7,
.shift = 20,
.width = 9,
},
.ssen = {
.reg_off = ANACTRL_MPLL_CTRL7,
.shift = 29,
.width = 1,
},
.lock = &meson_clk_lock,
.init_regs = s4_mpll3_init_regs,
.init_count = ARRAY_SIZE(s4_mpll3_init_regs),
},
.hw.init = &(struct clk_init_data){
.name = "mpll3_div",
.ops = &meson_clk_mpll_ops,
.parent_hws = (const struct clk_hw *[]) {
&s4_mpll_prediv.hw
},
.num_parents = 1,
},
};
static struct clk_regmap s4_mpll3 = {
.data = &(struct clk_regmap_gate_data){
.offset = ANACTRL_MPLL_CTRL7,
.bit_idx = 31,
},
.hw.init = &(struct clk_init_data){
.name = "mpll3",
.ops = &clk_regmap_gate_ops,
.parent_hws = (const struct clk_hw *[]) { &s4_mpll3_div.hw },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
/* Array of all clocks provided by this provider */
static struct clk_hw *s4_pll_hw_clks[] = {
[CLKID_FIXED_PLL_DCO] = &s4_fixed_pll_dco.hw,
[CLKID_FIXED_PLL] = &s4_fixed_pll.hw,
[CLKID_FCLK_DIV2_DIV] = &s4_fclk_div2_div.hw,
[CLKID_FCLK_DIV2] = &s4_fclk_div2.hw,
[CLKID_FCLK_DIV3_DIV] = &s4_fclk_div3_div.hw,
[CLKID_FCLK_DIV3] = &s4_fclk_div3.hw,
[CLKID_FCLK_DIV4_DIV] = &s4_fclk_div4_div.hw,
[CLKID_FCLK_DIV4] = &s4_fclk_div4.hw,
[CLKID_FCLK_DIV5_DIV] = &s4_fclk_div5_div.hw,
[CLKID_FCLK_DIV5] = &s4_fclk_div5.hw,
[CLKID_FCLK_DIV7_DIV] = &s4_fclk_div7_div.hw,
[CLKID_FCLK_DIV7] = &s4_fclk_div7.hw,
[CLKID_FCLK_DIV2P5_DIV] = &s4_fclk_div2p5_div.hw,
[CLKID_FCLK_DIV2P5] = &s4_fclk_div2p5.hw,
[CLKID_GP0_PLL_DCO] = &s4_gp0_pll_dco.hw,
[CLKID_GP0_PLL] = &s4_gp0_pll.hw,
[CLKID_HIFI_PLL_DCO] = &s4_hifi_pll_dco.hw,
[CLKID_HIFI_PLL] = &s4_hifi_pll.hw,
[CLKID_HDMI_PLL_DCO] = &s4_hdmi_pll_dco.hw,
[CLKID_HDMI_PLL_OD] = &s4_hdmi_pll_od.hw,
[CLKID_HDMI_PLL] = &s4_hdmi_pll.hw,
[CLKID_MPLL_50M_DIV] = &s4_mpll_50m_div.hw,
[CLKID_MPLL_50M] = &s4_mpll_50m.hw,
[CLKID_MPLL_PREDIV] = &s4_mpll_prediv.hw,
[CLKID_MPLL0_DIV] = &s4_mpll0_div.hw,
[CLKID_MPLL0] = &s4_mpll0.hw,
[CLKID_MPLL1_DIV] = &s4_mpll1_div.hw,
[CLKID_MPLL1] = &s4_mpll1.hw,
[CLKID_MPLL2_DIV] = &s4_mpll2_div.hw,
[CLKID_MPLL2] = &s4_mpll2.hw,
[CLKID_MPLL3_DIV] = &s4_mpll3_div.hw,
[CLKID_MPLL3] = &s4_mpll3.hw,
};
static struct clk_regmap *const s4_pll_clk_regmaps[] = {
&s4_fixed_pll_dco,
&s4_fixed_pll,
&s4_fclk_div2,
&s4_fclk_div3,
&s4_fclk_div4,
&s4_fclk_div5,
&s4_fclk_div7,
&s4_fclk_div2p5,
&s4_gp0_pll_dco,
&s4_gp0_pll,
&s4_hifi_pll_dco,
&s4_hifi_pll,
&s4_hdmi_pll_dco,
&s4_hdmi_pll_od,
&s4_hdmi_pll,
&s4_mpll_50m,
&s4_mpll0_div,
&s4_mpll0,
&s4_mpll1_div,
&s4_mpll1,
&s4_mpll2_div,
&s4_mpll2,
&s4_mpll3_div,
&s4_mpll3,
};
static const struct reg_sequence s4_init_regs[] = {
{ .reg = ANACTRL_MPLL_CTRL0, .def = 0x00000543 },
};
static struct regmap_config clkc_regmap_config = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
};
static struct meson_clk_hw_data s4_pll_clks = {
.hws = s4_pll_hw_clks,
.num = ARRAY_SIZE(s4_pll_hw_clks),
};
static int meson_s4_pll_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct regmap *regmap;
void __iomem *base;
int ret, i;
base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(base))
return dev_err_probe(dev, PTR_ERR(base),
"can't ioremap resource\n");
regmap = devm_regmap_init_mmio(dev, base, &clkc_regmap_config);
if (IS_ERR(regmap))
return dev_err_probe(dev, PTR_ERR(regmap),
"can't init regmap mmio region\n");
ret = regmap_multi_reg_write(regmap, s4_init_regs, ARRAY_SIZE(s4_init_regs));
if (ret)
return dev_err_probe(dev, ret,
"Failed to init registers\n");
/* Populate regmap for the regmap backed clocks */
for (i = 0; i < ARRAY_SIZE(s4_pll_clk_regmaps); i++)
s4_pll_clk_regmaps[i]->map = regmap;
/* Register clocks */
for (i = 0; i < s4_pll_clks.num; i++) {
/* array might be sparse */
if (!s4_pll_clks.hws[i])
continue;
ret = devm_clk_hw_register(dev, s4_pll_clks.hws[i]);
if (ret)
return dev_err_probe(dev, ret,
"clock[%d] registration failed\n", i);
}
return devm_of_clk_add_hw_provider(dev, meson_clk_hw_get,
&s4_pll_clks);
}
static const struct of_device_id clkc_match_table[] = {
{
.compatible = "amlogic,s4-pll-clkc",
},
{}
};
static struct platform_driver s4_driver = {
.probe = meson_s4_pll_probe,
.driver = {
.name = "s4-pll-clkc",
.of_match_table = clkc_match_table,
},
};
module_platform_driver(s4_driver);
MODULE_AUTHOR("Yu Tu <yu.tu@amlogic.com>");
MODULE_LICENSE("GPL");

38
drivers/clk/meson/s4-pll.h Normal file
View file

@ -0,0 +1,38 @@
/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
/*
* Copyright (c) 2022-2023 Amlogic, inc. All rights reserved
* Author: Yu Tu <yu.tu@amlogic.com>
*/
#ifndef __MESON_S4_PLL_H__
#define __MESON_S4_PLL_H__
#define ANACTRL_FIXPLL_CTRL0 0x040
#define ANACTRL_FIXPLL_CTRL1 0x044
#define ANACTRL_FIXPLL_CTRL3 0x04c
#define ANACTRL_GP0PLL_CTRL0 0x080
#define ANACTRL_GP0PLL_CTRL1 0x084
#define ANACTRL_GP0PLL_CTRL2 0x088
#define ANACTRL_GP0PLL_CTRL3 0x08c
#define ANACTRL_GP0PLL_CTRL4 0x090
#define ANACTRL_GP0PLL_CTRL5 0x094
#define ANACTRL_GP0PLL_CTRL6 0x098
#define ANACTRL_HIFIPLL_CTRL0 0x100
#define ANACTRL_HIFIPLL_CTRL1 0x104
#define ANACTRL_HIFIPLL_CTRL2 0x108
#define ANACTRL_HIFIPLL_CTRL3 0x10c
#define ANACTRL_HIFIPLL_CTRL4 0x110
#define ANACTRL_HIFIPLL_CTRL5 0x114
#define ANACTRL_HIFIPLL_CTRL6 0x118
#define ANACTRL_MPLL_CTRL0 0x180
#define ANACTRL_MPLL_CTRL1 0x184
#define ANACTRL_MPLL_CTRL2 0x188
#define ANACTRL_MPLL_CTRL3 0x18c
#define ANACTRL_MPLL_CTRL4 0x190
#define ANACTRL_MPLL_CTRL5 0x194
#define ANACTRL_MPLL_CTRL6 0x198
#define ANACTRL_MPLL_CTRL7 0x19c
#define ANACTRL_MPLL_CTRL8 0x1a0
#define ANACTRL_HDMIPLL_CTRL0 0x1c0
#endif /* __MESON_S4_PLL_H__ */