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ad9b2b8e53
The public S805 datasheet only mentions that HHI_SYS_CPU_CLK_CNTL1[20:29] contains a divider called "cpu_scale_div". Unfortunately it does not mention how to use the register contents. The Amlogic 3.10 GPL kernel sources are using the following code to calculate the CPU clock based on that register (taken from arch/arm/mach-meson8/clock.c in the 3.10 Amlogic kernel, shortened to make it easier to read): N = (aml_read_reg32(P_HHI_SYS_CPU_CLK_CNTL1) >> 20) & 0x3FF; if (sel == 3) /* use cpu_scale_div */ div = 2 * N; else div = ... /* not relevant for this example */ cpu_clk = parent_clk / div; This suggests that the formula is: parent_rate / 2 * register_value However, running perf (which can measure the CPU clock rate thanks to the ARM PMU) shows that this formula is not correct. This can be reproduced with the following steps: 1. boot into u-boot 2. let the CPU clock run off the XTAL clock: mw.l 0xC110419C 0x30 1 3. set the cpu_scale_div register: to value 0x1: mw.l 0xC110415C 0x801016A2 1 to value 0x2: mw.l 0xC110415C 0x802016A2 1 to value 0x5: mw.l 0xC110415C 0x805016A2 1 4. let the CPU clock run off cpu_scale_div: mw.l 0xC110419C 0xbd 1 5. boot Linux 6. run: perf stat -aB stress --cpu 4 --timeout 10 7. check the "cycles" value I get the following results depending on the cpu_scale_div value: - (cpu_in_sel - this is the input clock for cpu_scale_div - runs at 1.2GHz) - 0x1 = 300MHz - 0x2 = 200MHz - 0x5 = 100MHz This means that the actual formula to calculate the output of the cpu_scale_div clock is: parent_rate / 2 * (register value + 1). The register value 0x0 is reserved. When letting the CPU clock run off the cpu_scale_div while the value is 0x0 the whole board hangs (even in u-boot). I also verified this with the TWD timer: when adding this to the .dts without specifying it's clock it will auto-detect the PERIPH (which is the input clock of the TWD) clock rate (and the result is shown in the kernel log). On Meson8, Meson8b and Meson8m2 the PERIPH clock is CPUCLK divided by 4. This also matched for all three test-cases from above (in all cases the TWD timer clock rate was approx. one fourth of the CPU clock rate). A small note regarding the "fixes" tag: the original issue seems to exist virtually since forever. Even commit28b9fcd016
("clk: meson8b: Add support for Meson8b clocks") seems to handle this wrong. I still decided to use commit251b6fd38b
("clk: meson: rework meson8b cpu clock") because this is the first commit which gets the CPU hiearchy correct and thus it's the first commit where the cpu_scale_div register is used correctly (apart from the bug in the cpu_scale_table). Fixes:251b6fd38b
("clk: meson: rework meson8b cpu clock") Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://lkml.kernel.org/r/20180927085921.24627-2-martin.blumenstingl@googlemail.com
1181 lines
32 KiB
C
1181 lines
32 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2015 Endless Mobile, Inc.
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* Author: Carlo Caione <carlo@endlessm.com>
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*
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* Copyright (c) 2016 BayLibre, Inc.
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* Michael Turquette <mturquette@baylibre.com>
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*/
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#include <linux/clk.h>
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#include <linux/clk-provider.h>
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#include <linux/init.h>
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#include <linux/mfd/syscon.h>
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#include <linux/of_address.h>
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#include <linux/reset-controller.h>
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#include <linux/slab.h>
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#include <linux/regmap.h>
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#include "clkc.h"
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#include "meson8b.h"
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#include "clk-regmap.h"
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static DEFINE_SPINLOCK(meson_clk_lock);
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struct meson8b_clk_reset {
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struct reset_controller_dev reset;
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struct regmap *regmap;
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};
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static const struct pll_params_table sys_pll_params_table[] = {
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PLL_PARAMS(50, 1),
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PLL_PARAMS(51, 1),
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PLL_PARAMS(52, 1),
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PLL_PARAMS(53, 1),
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PLL_PARAMS(54, 1),
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PLL_PARAMS(55, 1),
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PLL_PARAMS(56, 1),
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PLL_PARAMS(57, 1),
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PLL_PARAMS(58, 1),
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PLL_PARAMS(59, 1),
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PLL_PARAMS(60, 1),
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PLL_PARAMS(61, 1),
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PLL_PARAMS(62, 1),
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PLL_PARAMS(63, 1),
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PLL_PARAMS(64, 1),
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{ /* sentinel */ },
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};
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static struct clk_fixed_rate meson8b_xtal = {
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.fixed_rate = 24000000,
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.hw.init = &(struct clk_init_data){
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.name = "xtal",
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.num_parents = 0,
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.ops = &clk_fixed_rate_ops,
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},
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};
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static struct clk_regmap meson8b_fixed_pll_dco = {
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.data = &(struct meson_clk_pll_data){
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.en = {
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.reg_off = HHI_MPLL_CNTL,
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.shift = 30,
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.width = 1,
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},
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.m = {
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.reg_off = HHI_MPLL_CNTL,
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.shift = 0,
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.width = 9,
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},
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.n = {
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.reg_off = HHI_MPLL_CNTL,
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.shift = 9,
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.width = 5,
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},
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.frac = {
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.reg_off = HHI_MPLL_CNTL2,
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.shift = 0,
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.width = 12,
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},
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.l = {
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.reg_off = HHI_MPLL_CNTL,
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.shift = 31,
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.width = 1,
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},
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.rst = {
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.reg_off = HHI_MPLL_CNTL,
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.shift = 29,
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.width = 1,
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},
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},
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.hw.init = &(struct clk_init_data){
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.name = "fixed_pll_dco",
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.ops = &meson_clk_pll_ro_ops,
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.parent_names = (const char *[]){ "xtal" },
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.num_parents = 1,
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},
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};
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static struct clk_regmap meson8b_fixed_pll = {
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.data = &(struct clk_regmap_div_data){
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.offset = HHI_MPLL_CNTL,
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.shift = 16,
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.width = 2,
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.flags = CLK_DIVIDER_POWER_OF_TWO,
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},
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.hw.init = &(struct clk_init_data){
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.name = "fixed_pll",
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.ops = &clk_regmap_divider_ro_ops,
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.parent_names = (const char *[]){ "fixed_pll_dco" },
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.num_parents = 1,
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/*
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* This clock won't ever change at runtime so
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* CLK_SET_RATE_PARENT is not required
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*/
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},
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};
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static struct clk_regmap meson8b_vid_pll_dco = {
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.data = &(struct meson_clk_pll_data){
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.en = {
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.reg_off = HHI_VID_PLL_CNTL,
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.shift = 30,
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.width = 1,
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},
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.m = {
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.reg_off = HHI_VID_PLL_CNTL,
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.shift = 0,
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.width = 9,
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},
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.n = {
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.reg_off = HHI_VID_PLL_CNTL,
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.shift = 9,
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.width = 5,
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},
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.l = {
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.reg_off = HHI_VID_PLL_CNTL,
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.shift = 31,
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.width = 1,
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},
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.rst = {
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.reg_off = HHI_VID_PLL_CNTL,
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.shift = 29,
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.width = 1,
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},
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},
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.hw.init = &(struct clk_init_data){
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.name = "vid_pll_dco",
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.ops = &meson_clk_pll_ro_ops,
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.parent_names = (const char *[]){ "xtal" },
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.num_parents = 1,
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},
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};
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static struct clk_regmap meson8b_vid_pll = {
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.data = &(struct clk_regmap_div_data){
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.offset = HHI_VID_PLL_CNTL,
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.shift = 16,
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.width = 2,
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.flags = CLK_DIVIDER_POWER_OF_TWO,
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},
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.hw.init = &(struct clk_init_data){
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.name = "vid_pll",
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.ops = &clk_regmap_divider_ro_ops,
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.parent_names = (const char *[]){ "vid_pll_dco" },
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.num_parents = 1,
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.flags = CLK_SET_RATE_PARENT,
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},
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};
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static struct clk_regmap meson8b_sys_pll_dco = {
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.data = &(struct meson_clk_pll_data){
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.en = {
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.reg_off = HHI_SYS_PLL_CNTL,
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.shift = 30,
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.width = 1,
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},
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.m = {
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.reg_off = HHI_SYS_PLL_CNTL,
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.shift = 0,
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.width = 9,
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},
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.n = {
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.reg_off = HHI_SYS_PLL_CNTL,
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.shift = 9,
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.width = 5,
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},
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.l = {
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.reg_off = HHI_SYS_PLL_CNTL,
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.shift = 31,
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.width = 1,
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},
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.rst = {
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.reg_off = HHI_SYS_PLL_CNTL,
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.shift = 29,
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.width = 1,
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},
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.table = sys_pll_params_table,
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},
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.hw.init = &(struct clk_init_data){
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.name = "sys_pll_dco",
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.ops = &meson_clk_pll_ro_ops,
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.parent_names = (const char *[]){ "xtal" },
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.num_parents = 1,
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},
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};
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static struct clk_regmap meson8b_sys_pll = {
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.data = &(struct clk_regmap_div_data){
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.offset = HHI_SYS_PLL_CNTL,
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.shift = 16,
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.width = 2,
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.flags = CLK_DIVIDER_POWER_OF_TWO,
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},
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.hw.init = &(struct clk_init_data){
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.name = "sys_pll",
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.ops = &clk_regmap_divider_ro_ops,
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.parent_names = (const char *[]){ "sys_pll_dco" },
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.num_parents = 1,
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.flags = CLK_SET_RATE_PARENT,
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},
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};
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static struct clk_fixed_factor meson8b_fclk_div2_div = {
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.mult = 1,
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.div = 2,
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.hw.init = &(struct clk_init_data){
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.name = "fclk_div2_div",
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.ops = &clk_fixed_factor_ops,
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.parent_names = (const char *[]){ "fixed_pll" },
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.num_parents = 1,
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},
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};
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static struct clk_regmap meson8b_fclk_div2 = {
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.data = &(struct clk_regmap_gate_data){
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.offset = HHI_MPLL_CNTL6,
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.bit_idx = 27,
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},
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.hw.init = &(struct clk_init_data){
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.name = "fclk_div2",
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.ops = &clk_regmap_gate_ops,
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.parent_names = (const char *[]){ "fclk_div2_div" },
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.num_parents = 1,
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/*
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* FIXME: Ethernet with a RGMII PHYs is not working if
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* fclk_div2 is disabled. it is currently unclear why this
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* is. keep it enabled until the Ethernet driver knows how
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* to manage this clock.
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*/
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.flags = CLK_IS_CRITICAL,
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},
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};
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static struct clk_fixed_factor meson8b_fclk_div3_div = {
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.mult = 1,
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.div = 3,
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.hw.init = &(struct clk_init_data){
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.name = "fclk_div3_div",
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.ops = &clk_fixed_factor_ops,
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.parent_names = (const char *[]){ "fixed_pll" },
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.num_parents = 1,
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},
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};
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static struct clk_regmap meson8b_fclk_div3 = {
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.data = &(struct clk_regmap_gate_data){
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.offset = HHI_MPLL_CNTL6,
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.bit_idx = 28,
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},
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.hw.init = &(struct clk_init_data){
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.name = "fclk_div3",
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.ops = &clk_regmap_gate_ops,
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.parent_names = (const char *[]){ "fclk_div3_div" },
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.num_parents = 1,
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},
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};
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static struct clk_fixed_factor meson8b_fclk_div4_div = {
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.mult = 1,
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.div = 4,
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.hw.init = &(struct clk_init_data){
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.name = "fclk_div4_div",
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.ops = &clk_fixed_factor_ops,
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.parent_names = (const char *[]){ "fixed_pll" },
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.num_parents = 1,
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},
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};
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static struct clk_regmap meson8b_fclk_div4 = {
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.data = &(struct clk_regmap_gate_data){
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.offset = HHI_MPLL_CNTL6,
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.bit_idx = 29,
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},
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.hw.init = &(struct clk_init_data){
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.name = "fclk_div4",
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.ops = &clk_regmap_gate_ops,
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.parent_names = (const char *[]){ "fclk_div4_div" },
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.num_parents = 1,
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},
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};
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static struct clk_fixed_factor meson8b_fclk_div5_div = {
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.mult = 1,
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.div = 5,
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.hw.init = &(struct clk_init_data){
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.name = "fclk_div5_div",
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.ops = &clk_fixed_factor_ops,
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.parent_names = (const char *[]){ "fixed_pll" },
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.num_parents = 1,
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},
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};
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static struct clk_regmap meson8b_fclk_div5 = {
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.data = &(struct clk_regmap_gate_data){
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.offset = HHI_MPLL_CNTL6,
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.bit_idx = 30,
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},
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.hw.init = &(struct clk_init_data){
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.name = "fclk_div5",
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.ops = &clk_regmap_gate_ops,
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.parent_names = (const char *[]){ "fclk_div5_div" },
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.num_parents = 1,
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},
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};
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static struct clk_fixed_factor meson8b_fclk_div7_div = {
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.mult = 1,
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.div = 7,
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.hw.init = &(struct clk_init_data){
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.name = "fclk_div7_div",
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.ops = &clk_fixed_factor_ops,
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.parent_names = (const char *[]){ "fixed_pll" },
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.num_parents = 1,
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},
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};
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static struct clk_regmap meson8b_fclk_div7 = {
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.data = &(struct clk_regmap_gate_data){
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.offset = HHI_MPLL_CNTL6,
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.bit_idx = 31,
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},
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.hw.init = &(struct clk_init_data){
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.name = "fclk_div7",
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.ops = &clk_regmap_gate_ops,
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.parent_names = (const char *[]){ "fclk_div7_div" },
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.num_parents = 1,
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},
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};
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static struct clk_regmap meson8b_mpll_prediv = {
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.data = &(struct clk_regmap_div_data){
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.offset = HHI_MPLL_CNTL5,
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.shift = 12,
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.width = 1,
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},
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.hw.init = &(struct clk_init_data){
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.name = "mpll_prediv",
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.ops = &clk_regmap_divider_ro_ops,
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.parent_names = (const char *[]){ "fixed_pll" },
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.num_parents = 1,
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},
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};
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static struct clk_regmap meson8b_mpll0_div = {
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.data = &(struct meson_clk_mpll_data){
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.sdm = {
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.reg_off = HHI_MPLL_CNTL7,
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.shift = 0,
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.width = 14,
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},
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.sdm_en = {
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.reg_off = HHI_MPLL_CNTL7,
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.shift = 15,
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.width = 1,
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},
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.n2 = {
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.reg_off = HHI_MPLL_CNTL7,
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.shift = 16,
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.width = 9,
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},
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.ssen = {
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.reg_off = HHI_MPLL_CNTL,
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.shift = 25,
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.width = 1,
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},
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.lock = &meson_clk_lock,
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},
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.hw.init = &(struct clk_init_data){
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.name = "mpll0_div",
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.ops = &meson_clk_mpll_ops,
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.parent_names = (const char *[]){ "mpll_prediv" },
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.num_parents = 1,
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},
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};
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static struct clk_regmap meson8b_mpll0 = {
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.data = &(struct clk_regmap_gate_data){
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.offset = HHI_MPLL_CNTL7,
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.bit_idx = 14,
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},
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.hw.init = &(struct clk_init_data){
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.name = "mpll0",
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.ops = &clk_regmap_gate_ops,
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.parent_names = (const char *[]){ "mpll0_div" },
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.num_parents = 1,
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.flags = CLK_SET_RATE_PARENT,
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},
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};
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static struct clk_regmap meson8b_mpll1_div = {
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.data = &(struct meson_clk_mpll_data){
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.sdm = {
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.reg_off = HHI_MPLL_CNTL8,
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.shift = 0,
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.width = 14,
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},
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.sdm_en = {
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.reg_off = HHI_MPLL_CNTL8,
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.shift = 15,
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.width = 1,
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},
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.n2 = {
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.reg_off = HHI_MPLL_CNTL8,
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.shift = 16,
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.width = 9,
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},
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.lock = &meson_clk_lock,
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},
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.hw.init = &(struct clk_init_data){
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.name = "mpll1_div",
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.ops = &meson_clk_mpll_ops,
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.parent_names = (const char *[]){ "mpll_prediv" },
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.num_parents = 1,
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},
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};
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static struct clk_regmap meson8b_mpll1 = {
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.data = &(struct clk_regmap_gate_data){
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.offset = HHI_MPLL_CNTL8,
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.bit_idx = 14,
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},
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.hw.init = &(struct clk_init_data){
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.name = "mpll1",
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.ops = &clk_regmap_gate_ops,
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.parent_names = (const char *[]){ "mpll1_div" },
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.num_parents = 1,
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.flags = CLK_SET_RATE_PARENT,
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},
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};
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static struct clk_regmap meson8b_mpll2_div = {
|
|
.data = &(struct meson_clk_mpll_data){
|
|
.sdm = {
|
|
.reg_off = HHI_MPLL_CNTL9,
|
|
.shift = 0,
|
|
.width = 14,
|
|
},
|
|
.sdm_en = {
|
|
.reg_off = HHI_MPLL_CNTL9,
|
|
.shift = 15,
|
|
.width = 1,
|
|
},
|
|
.n2 = {
|
|
.reg_off = HHI_MPLL_CNTL9,
|
|
.shift = 16,
|
|
.width = 9,
|
|
},
|
|
.lock = &meson_clk_lock,
|
|
},
|
|
.hw.init = &(struct clk_init_data){
|
|
.name = "mpll2_div",
|
|
.ops = &meson_clk_mpll_ops,
|
|
.parent_names = (const char *[]){ "mpll_prediv" },
|
|
.num_parents = 1,
|
|
},
|
|
};
|
|
|
|
static struct clk_regmap meson8b_mpll2 = {
|
|
.data = &(struct clk_regmap_gate_data){
|
|
.offset = HHI_MPLL_CNTL9,
|
|
.bit_idx = 14,
|
|
},
|
|
.hw.init = &(struct clk_init_data){
|
|
.name = "mpll2",
|
|
.ops = &clk_regmap_gate_ops,
|
|
.parent_names = (const char *[]){ "mpll2_div" },
|
|
.num_parents = 1,
|
|
.flags = CLK_SET_RATE_PARENT,
|
|
},
|
|
};
|
|
|
|
static u32 mux_table_clk81[] = { 6, 5, 7 };
|
|
static struct clk_regmap meson8b_mpeg_clk_sel = {
|
|
.data = &(struct clk_regmap_mux_data){
|
|
.offset = HHI_MPEG_CLK_CNTL,
|
|
.mask = 0x7,
|
|
.shift = 12,
|
|
.table = mux_table_clk81,
|
|
},
|
|
.hw.init = &(struct clk_init_data){
|
|
.name = "mpeg_clk_sel",
|
|
.ops = &clk_regmap_mux_ro_ops,
|
|
/*
|
|
* FIXME bits 14:12 selects from 8 possible parents:
|
|
* xtal, 1'b0 (wtf), fclk_div7, mpll_clkout1, mpll_clkout2,
|
|
* fclk_div4, fclk_div3, fclk_div5
|
|
*/
|
|
.parent_names = (const char *[]){ "fclk_div3", "fclk_div4",
|
|
"fclk_div5" },
|
|
.num_parents = 3,
|
|
},
|
|
};
|
|
|
|
static struct clk_regmap meson8b_mpeg_clk_div = {
|
|
.data = &(struct clk_regmap_div_data){
|
|
.offset = HHI_MPEG_CLK_CNTL,
|
|
.shift = 0,
|
|
.width = 7,
|
|
},
|
|
.hw.init = &(struct clk_init_data){
|
|
.name = "mpeg_clk_div",
|
|
.ops = &clk_regmap_divider_ro_ops,
|
|
.parent_names = (const char *[]){ "mpeg_clk_sel" },
|
|
.num_parents = 1,
|
|
},
|
|
};
|
|
|
|
static struct clk_regmap meson8b_clk81 = {
|
|
.data = &(struct clk_regmap_gate_data){
|
|
.offset = HHI_MPEG_CLK_CNTL,
|
|
.bit_idx = 7,
|
|
},
|
|
.hw.init = &(struct clk_init_data){
|
|
.name = "clk81",
|
|
.ops = &clk_regmap_gate_ops,
|
|
.parent_names = (const char *[]){ "mpeg_clk_div" },
|
|
.num_parents = 1,
|
|
.flags = CLK_IS_CRITICAL,
|
|
},
|
|
};
|
|
|
|
static struct clk_regmap meson8b_cpu_in_sel = {
|
|
.data = &(struct clk_regmap_mux_data){
|
|
.offset = HHI_SYS_CPU_CLK_CNTL0,
|
|
.mask = 0x1,
|
|
.shift = 0,
|
|
},
|
|
.hw.init = &(struct clk_init_data){
|
|
.name = "cpu_in_sel",
|
|
.ops = &clk_regmap_mux_ro_ops,
|
|
.parent_names = (const char *[]){ "xtal", "sys_pll" },
|
|
.num_parents = 2,
|
|
.flags = (CLK_SET_RATE_PARENT |
|
|
CLK_SET_RATE_NO_REPARENT),
|
|
},
|
|
};
|
|
|
|
static struct clk_fixed_factor meson8b_cpu_div2 = {
|
|
.mult = 1,
|
|
.div = 2,
|
|
.hw.init = &(struct clk_init_data){
|
|
.name = "cpu_div2",
|
|
.ops = &clk_fixed_factor_ops,
|
|
.parent_names = (const char *[]){ "cpu_in_sel" },
|
|
.num_parents = 1,
|
|
.flags = CLK_SET_RATE_PARENT,
|
|
},
|
|
};
|
|
|
|
static struct clk_fixed_factor meson8b_cpu_div3 = {
|
|
.mult = 1,
|
|
.div = 3,
|
|
.hw.init = &(struct clk_init_data){
|
|
.name = "cpu_div3",
|
|
.ops = &clk_fixed_factor_ops,
|
|
.parent_names = (const char *[]){ "cpu_in_sel" },
|
|
.num_parents = 1,
|
|
.flags = CLK_SET_RATE_PARENT,
|
|
},
|
|
};
|
|
|
|
static const struct clk_div_table cpu_scale_table[] = {
|
|
{ .val = 1, .div = 4 },
|
|
{ .val = 2, .div = 6 },
|
|
{ .val = 3, .div = 8 },
|
|
{ .val = 4, .div = 10 },
|
|
{ .val = 5, .div = 12 },
|
|
{ .val = 6, .div = 14 },
|
|
{ .val = 7, .div = 16 },
|
|
{ .val = 8, .div = 18 },
|
|
{ /* sentinel */ },
|
|
};
|
|
|
|
static struct clk_regmap meson8b_cpu_scale_div = {
|
|
.data = &(struct clk_regmap_div_data){
|
|
.offset = HHI_SYS_CPU_CLK_CNTL1,
|
|
.shift = 20,
|
|
.width = 9,
|
|
.table = cpu_scale_table,
|
|
.flags = CLK_DIVIDER_ALLOW_ZERO,
|
|
},
|
|
.hw.init = &(struct clk_init_data){
|
|
.name = "cpu_scale_div",
|
|
.ops = &clk_regmap_divider_ro_ops,
|
|
.parent_names = (const char *[]){ "cpu_in_sel" },
|
|
.num_parents = 1,
|
|
.flags = CLK_SET_RATE_PARENT,
|
|
},
|
|
};
|
|
|
|
static struct clk_regmap meson8b_cpu_scale_out_sel = {
|
|
.data = &(struct clk_regmap_mux_data){
|
|
.offset = HHI_SYS_CPU_CLK_CNTL0,
|
|
.mask = 0x3,
|
|
.shift = 2,
|
|
},
|
|
.hw.init = &(struct clk_init_data){
|
|
.name = "cpu_scale_out_sel",
|
|
.ops = &clk_regmap_mux_ro_ops,
|
|
.parent_names = (const char *[]) { "cpu_in_sel",
|
|
"cpu_div2",
|
|
"cpu_div3",
|
|
"cpu_scale_div" },
|
|
.num_parents = 4,
|
|
.flags = CLK_SET_RATE_PARENT,
|
|
},
|
|
};
|
|
|
|
static struct clk_regmap meson8b_cpu_clk = {
|
|
.data = &(struct clk_regmap_mux_data){
|
|
.offset = HHI_SYS_CPU_CLK_CNTL0,
|
|
.mask = 0x1,
|
|
.shift = 7,
|
|
},
|
|
.hw.init = &(struct clk_init_data){
|
|
.name = "cpu_clk",
|
|
.ops = &clk_regmap_mux_ro_ops,
|
|
.parent_names = (const char *[]){ "xtal",
|
|
"cpu_scale_out_sel" },
|
|
.num_parents = 2,
|
|
.flags = (CLK_SET_RATE_PARENT |
|
|
CLK_SET_RATE_NO_REPARENT),
|
|
},
|
|
};
|
|
|
|
static struct clk_regmap meson8b_nand_clk_sel = {
|
|
.data = &(struct clk_regmap_mux_data){
|
|
.offset = HHI_NAND_CLK_CNTL,
|
|
.mask = 0x7,
|
|
.shift = 9,
|
|
.flags = CLK_MUX_ROUND_CLOSEST,
|
|
},
|
|
.hw.init = &(struct clk_init_data){
|
|
.name = "nand_clk_sel",
|
|
.ops = &clk_regmap_mux_ops,
|
|
/* FIXME all other parents are unknown: */
|
|
.parent_names = (const char *[]){ "fclk_div4", "fclk_div3",
|
|
"fclk_div5", "fclk_div7", "xtal" },
|
|
.num_parents = 5,
|
|
.flags = CLK_SET_RATE_PARENT,
|
|
},
|
|
};
|
|
|
|
static struct clk_regmap meson8b_nand_clk_div = {
|
|
.data = &(struct clk_regmap_div_data){
|
|
.offset = HHI_NAND_CLK_CNTL,
|
|
.shift = 0,
|
|
.width = 7,
|
|
.flags = CLK_DIVIDER_ROUND_CLOSEST,
|
|
},
|
|
.hw.init = &(struct clk_init_data){
|
|
.name = "nand_clk_div",
|
|
.ops = &clk_regmap_divider_ops,
|
|
.parent_names = (const char *[]){ "nand_clk_sel" },
|
|
.num_parents = 1,
|
|
.flags = CLK_SET_RATE_PARENT,
|
|
},
|
|
};
|
|
|
|
static struct clk_regmap meson8b_nand_clk_gate = {
|
|
.data = &(struct clk_regmap_gate_data){
|
|
.offset = HHI_NAND_CLK_CNTL,
|
|
.bit_idx = 8,
|
|
},
|
|
.hw.init = &(struct clk_init_data){
|
|
.name = "nand_clk_gate",
|
|
.ops = &clk_regmap_gate_ops,
|
|
.parent_names = (const char *[]){ "nand_clk_div" },
|
|
.num_parents = 1,
|
|
.flags = CLK_SET_RATE_PARENT,
|
|
},
|
|
};
|
|
|
|
/* Everything Else (EE) domain gates */
|
|
|
|
static MESON_GATE(meson8b_ddr, HHI_GCLK_MPEG0, 0);
|
|
static MESON_GATE(meson8b_dos, HHI_GCLK_MPEG0, 1);
|
|
static MESON_GATE(meson8b_isa, HHI_GCLK_MPEG0, 5);
|
|
static MESON_GATE(meson8b_pl301, HHI_GCLK_MPEG0, 6);
|
|
static MESON_GATE(meson8b_periphs, HHI_GCLK_MPEG0, 7);
|
|
static MESON_GATE(meson8b_spicc, HHI_GCLK_MPEG0, 8);
|
|
static MESON_GATE(meson8b_i2c, HHI_GCLK_MPEG0, 9);
|
|
static MESON_GATE(meson8b_sar_adc, HHI_GCLK_MPEG0, 10);
|
|
static MESON_GATE(meson8b_smart_card, HHI_GCLK_MPEG0, 11);
|
|
static MESON_GATE(meson8b_rng0, HHI_GCLK_MPEG0, 12);
|
|
static MESON_GATE(meson8b_uart0, HHI_GCLK_MPEG0, 13);
|
|
static MESON_GATE(meson8b_sdhc, HHI_GCLK_MPEG0, 14);
|
|
static MESON_GATE(meson8b_stream, HHI_GCLK_MPEG0, 15);
|
|
static MESON_GATE(meson8b_async_fifo, HHI_GCLK_MPEG0, 16);
|
|
static MESON_GATE(meson8b_sdio, HHI_GCLK_MPEG0, 17);
|
|
static MESON_GATE(meson8b_abuf, HHI_GCLK_MPEG0, 18);
|
|
static MESON_GATE(meson8b_hiu_iface, HHI_GCLK_MPEG0, 19);
|
|
static MESON_GATE(meson8b_assist_misc, HHI_GCLK_MPEG0, 23);
|
|
static MESON_GATE(meson8b_spi, HHI_GCLK_MPEG0, 30);
|
|
|
|
static MESON_GATE(meson8b_i2s_spdif, HHI_GCLK_MPEG1, 2);
|
|
static MESON_GATE(meson8b_eth, HHI_GCLK_MPEG1, 3);
|
|
static MESON_GATE(meson8b_demux, HHI_GCLK_MPEG1, 4);
|
|
static MESON_GATE(meson8b_aiu_glue, HHI_GCLK_MPEG1, 6);
|
|
static MESON_GATE(meson8b_iec958, HHI_GCLK_MPEG1, 7);
|
|
static MESON_GATE(meson8b_i2s_out, HHI_GCLK_MPEG1, 8);
|
|
static MESON_GATE(meson8b_amclk, HHI_GCLK_MPEG1, 9);
|
|
static MESON_GATE(meson8b_aififo2, HHI_GCLK_MPEG1, 10);
|
|
static MESON_GATE(meson8b_mixer, HHI_GCLK_MPEG1, 11);
|
|
static MESON_GATE(meson8b_mixer_iface, HHI_GCLK_MPEG1, 12);
|
|
static MESON_GATE(meson8b_adc, HHI_GCLK_MPEG1, 13);
|
|
static MESON_GATE(meson8b_blkmv, HHI_GCLK_MPEG1, 14);
|
|
static MESON_GATE(meson8b_aiu, HHI_GCLK_MPEG1, 15);
|
|
static MESON_GATE(meson8b_uart1, HHI_GCLK_MPEG1, 16);
|
|
static MESON_GATE(meson8b_g2d, HHI_GCLK_MPEG1, 20);
|
|
static MESON_GATE(meson8b_usb0, HHI_GCLK_MPEG1, 21);
|
|
static MESON_GATE(meson8b_usb1, HHI_GCLK_MPEG1, 22);
|
|
static MESON_GATE(meson8b_reset, HHI_GCLK_MPEG1, 23);
|
|
static MESON_GATE(meson8b_nand, HHI_GCLK_MPEG1, 24);
|
|
static MESON_GATE(meson8b_dos_parser, HHI_GCLK_MPEG1, 25);
|
|
static MESON_GATE(meson8b_usb, HHI_GCLK_MPEG1, 26);
|
|
static MESON_GATE(meson8b_vdin1, HHI_GCLK_MPEG1, 28);
|
|
static MESON_GATE(meson8b_ahb_arb0, HHI_GCLK_MPEG1, 29);
|
|
static MESON_GATE(meson8b_efuse, HHI_GCLK_MPEG1, 30);
|
|
static MESON_GATE(meson8b_boot_rom, HHI_GCLK_MPEG1, 31);
|
|
|
|
static MESON_GATE(meson8b_ahb_data_bus, HHI_GCLK_MPEG2, 1);
|
|
static MESON_GATE(meson8b_ahb_ctrl_bus, HHI_GCLK_MPEG2, 2);
|
|
static MESON_GATE(meson8b_hdmi_intr_sync, HHI_GCLK_MPEG2, 3);
|
|
static MESON_GATE(meson8b_hdmi_pclk, HHI_GCLK_MPEG2, 4);
|
|
static MESON_GATE(meson8b_usb1_ddr_bridge, HHI_GCLK_MPEG2, 8);
|
|
static MESON_GATE(meson8b_usb0_ddr_bridge, HHI_GCLK_MPEG2, 9);
|
|
static MESON_GATE(meson8b_mmc_pclk, HHI_GCLK_MPEG2, 11);
|
|
static MESON_GATE(meson8b_dvin, HHI_GCLK_MPEG2, 12);
|
|
static MESON_GATE(meson8b_uart2, HHI_GCLK_MPEG2, 15);
|
|
static MESON_GATE(meson8b_sana, HHI_GCLK_MPEG2, 22);
|
|
static MESON_GATE(meson8b_vpu_intr, HHI_GCLK_MPEG2, 25);
|
|
static MESON_GATE(meson8b_sec_ahb_ahb3_bridge, HHI_GCLK_MPEG2, 26);
|
|
static MESON_GATE(meson8b_clk81_a9, HHI_GCLK_MPEG2, 29);
|
|
|
|
static MESON_GATE(meson8b_vclk2_venci0, HHI_GCLK_OTHER, 1);
|
|
static MESON_GATE(meson8b_vclk2_venci1, HHI_GCLK_OTHER, 2);
|
|
static MESON_GATE(meson8b_vclk2_vencp0, HHI_GCLK_OTHER, 3);
|
|
static MESON_GATE(meson8b_vclk2_vencp1, HHI_GCLK_OTHER, 4);
|
|
static MESON_GATE(meson8b_gclk_venci_int, HHI_GCLK_OTHER, 8);
|
|
static MESON_GATE(meson8b_gclk_vencp_int, HHI_GCLK_OTHER, 9);
|
|
static MESON_GATE(meson8b_dac_clk, HHI_GCLK_OTHER, 10);
|
|
static MESON_GATE(meson8b_aoclk_gate, HHI_GCLK_OTHER, 14);
|
|
static MESON_GATE(meson8b_iec958_gate, HHI_GCLK_OTHER, 16);
|
|
static MESON_GATE(meson8b_enc480p, HHI_GCLK_OTHER, 20);
|
|
static MESON_GATE(meson8b_rng1, HHI_GCLK_OTHER, 21);
|
|
static MESON_GATE(meson8b_gclk_vencl_int, HHI_GCLK_OTHER, 22);
|
|
static MESON_GATE(meson8b_vclk2_venclmcc, HHI_GCLK_OTHER, 24);
|
|
static MESON_GATE(meson8b_vclk2_vencl, HHI_GCLK_OTHER, 25);
|
|
static MESON_GATE(meson8b_vclk2_other, HHI_GCLK_OTHER, 26);
|
|
static MESON_GATE(meson8b_edp, HHI_GCLK_OTHER, 31);
|
|
|
|
/* Always On (AO) domain gates */
|
|
|
|
static MESON_GATE(meson8b_ao_media_cpu, HHI_GCLK_AO, 0);
|
|
static MESON_GATE(meson8b_ao_ahb_sram, HHI_GCLK_AO, 1);
|
|
static MESON_GATE(meson8b_ao_ahb_bus, HHI_GCLK_AO, 2);
|
|
static MESON_GATE(meson8b_ao_iface, HHI_GCLK_AO, 3);
|
|
|
|
static struct clk_hw_onecell_data meson8b_hw_onecell_data = {
|
|
.hws = {
|
|
[CLKID_XTAL] = &meson8b_xtal.hw,
|
|
[CLKID_PLL_FIXED] = &meson8b_fixed_pll.hw,
|
|
[CLKID_PLL_VID] = &meson8b_vid_pll.hw,
|
|
[CLKID_PLL_SYS] = &meson8b_sys_pll.hw,
|
|
[CLKID_FCLK_DIV2] = &meson8b_fclk_div2.hw,
|
|
[CLKID_FCLK_DIV3] = &meson8b_fclk_div3.hw,
|
|
[CLKID_FCLK_DIV4] = &meson8b_fclk_div4.hw,
|
|
[CLKID_FCLK_DIV5] = &meson8b_fclk_div5.hw,
|
|
[CLKID_FCLK_DIV7] = &meson8b_fclk_div7.hw,
|
|
[CLKID_CPUCLK] = &meson8b_cpu_clk.hw,
|
|
[CLKID_MPEG_SEL] = &meson8b_mpeg_clk_sel.hw,
|
|
[CLKID_MPEG_DIV] = &meson8b_mpeg_clk_div.hw,
|
|
[CLKID_CLK81] = &meson8b_clk81.hw,
|
|
[CLKID_DDR] = &meson8b_ddr.hw,
|
|
[CLKID_DOS] = &meson8b_dos.hw,
|
|
[CLKID_ISA] = &meson8b_isa.hw,
|
|
[CLKID_PL301] = &meson8b_pl301.hw,
|
|
[CLKID_PERIPHS] = &meson8b_periphs.hw,
|
|
[CLKID_SPICC] = &meson8b_spicc.hw,
|
|
[CLKID_I2C] = &meson8b_i2c.hw,
|
|
[CLKID_SAR_ADC] = &meson8b_sar_adc.hw,
|
|
[CLKID_SMART_CARD] = &meson8b_smart_card.hw,
|
|
[CLKID_RNG0] = &meson8b_rng0.hw,
|
|
[CLKID_UART0] = &meson8b_uart0.hw,
|
|
[CLKID_SDHC] = &meson8b_sdhc.hw,
|
|
[CLKID_STREAM] = &meson8b_stream.hw,
|
|
[CLKID_ASYNC_FIFO] = &meson8b_async_fifo.hw,
|
|
[CLKID_SDIO] = &meson8b_sdio.hw,
|
|
[CLKID_ABUF] = &meson8b_abuf.hw,
|
|
[CLKID_HIU_IFACE] = &meson8b_hiu_iface.hw,
|
|
[CLKID_ASSIST_MISC] = &meson8b_assist_misc.hw,
|
|
[CLKID_SPI] = &meson8b_spi.hw,
|
|
[CLKID_I2S_SPDIF] = &meson8b_i2s_spdif.hw,
|
|
[CLKID_ETH] = &meson8b_eth.hw,
|
|
[CLKID_DEMUX] = &meson8b_demux.hw,
|
|
[CLKID_AIU_GLUE] = &meson8b_aiu_glue.hw,
|
|
[CLKID_IEC958] = &meson8b_iec958.hw,
|
|
[CLKID_I2S_OUT] = &meson8b_i2s_out.hw,
|
|
[CLKID_AMCLK] = &meson8b_amclk.hw,
|
|
[CLKID_AIFIFO2] = &meson8b_aififo2.hw,
|
|
[CLKID_MIXER] = &meson8b_mixer.hw,
|
|
[CLKID_MIXER_IFACE] = &meson8b_mixer_iface.hw,
|
|
[CLKID_ADC] = &meson8b_adc.hw,
|
|
[CLKID_BLKMV] = &meson8b_blkmv.hw,
|
|
[CLKID_AIU] = &meson8b_aiu.hw,
|
|
[CLKID_UART1] = &meson8b_uart1.hw,
|
|
[CLKID_G2D] = &meson8b_g2d.hw,
|
|
[CLKID_USB0] = &meson8b_usb0.hw,
|
|
[CLKID_USB1] = &meson8b_usb1.hw,
|
|
[CLKID_RESET] = &meson8b_reset.hw,
|
|
[CLKID_NAND] = &meson8b_nand.hw,
|
|
[CLKID_DOS_PARSER] = &meson8b_dos_parser.hw,
|
|
[CLKID_USB] = &meson8b_usb.hw,
|
|
[CLKID_VDIN1] = &meson8b_vdin1.hw,
|
|
[CLKID_AHB_ARB0] = &meson8b_ahb_arb0.hw,
|
|
[CLKID_EFUSE] = &meson8b_efuse.hw,
|
|
[CLKID_BOOT_ROM] = &meson8b_boot_rom.hw,
|
|
[CLKID_AHB_DATA_BUS] = &meson8b_ahb_data_bus.hw,
|
|
[CLKID_AHB_CTRL_BUS] = &meson8b_ahb_ctrl_bus.hw,
|
|
[CLKID_HDMI_INTR_SYNC] = &meson8b_hdmi_intr_sync.hw,
|
|
[CLKID_HDMI_PCLK] = &meson8b_hdmi_pclk.hw,
|
|
[CLKID_USB1_DDR_BRIDGE] = &meson8b_usb1_ddr_bridge.hw,
|
|
[CLKID_USB0_DDR_BRIDGE] = &meson8b_usb0_ddr_bridge.hw,
|
|
[CLKID_MMC_PCLK] = &meson8b_mmc_pclk.hw,
|
|
[CLKID_DVIN] = &meson8b_dvin.hw,
|
|
[CLKID_UART2] = &meson8b_uart2.hw,
|
|
[CLKID_SANA] = &meson8b_sana.hw,
|
|
[CLKID_VPU_INTR] = &meson8b_vpu_intr.hw,
|
|
[CLKID_SEC_AHB_AHB3_BRIDGE] = &meson8b_sec_ahb_ahb3_bridge.hw,
|
|
[CLKID_CLK81_A9] = &meson8b_clk81_a9.hw,
|
|
[CLKID_VCLK2_VENCI0] = &meson8b_vclk2_venci0.hw,
|
|
[CLKID_VCLK2_VENCI1] = &meson8b_vclk2_venci1.hw,
|
|
[CLKID_VCLK2_VENCP0] = &meson8b_vclk2_vencp0.hw,
|
|
[CLKID_VCLK2_VENCP1] = &meson8b_vclk2_vencp1.hw,
|
|
[CLKID_GCLK_VENCI_INT] = &meson8b_gclk_venci_int.hw,
|
|
[CLKID_GCLK_VENCP_INT] = &meson8b_gclk_vencp_int.hw,
|
|
[CLKID_DAC_CLK] = &meson8b_dac_clk.hw,
|
|
[CLKID_AOCLK_GATE] = &meson8b_aoclk_gate.hw,
|
|
[CLKID_IEC958_GATE] = &meson8b_iec958_gate.hw,
|
|
[CLKID_ENC480P] = &meson8b_enc480p.hw,
|
|
[CLKID_RNG1] = &meson8b_rng1.hw,
|
|
[CLKID_GCLK_VENCL_INT] = &meson8b_gclk_vencl_int.hw,
|
|
[CLKID_VCLK2_VENCLMCC] = &meson8b_vclk2_venclmcc.hw,
|
|
[CLKID_VCLK2_VENCL] = &meson8b_vclk2_vencl.hw,
|
|
[CLKID_VCLK2_OTHER] = &meson8b_vclk2_other.hw,
|
|
[CLKID_EDP] = &meson8b_edp.hw,
|
|
[CLKID_AO_MEDIA_CPU] = &meson8b_ao_media_cpu.hw,
|
|
[CLKID_AO_AHB_SRAM] = &meson8b_ao_ahb_sram.hw,
|
|
[CLKID_AO_AHB_BUS] = &meson8b_ao_ahb_bus.hw,
|
|
[CLKID_AO_IFACE] = &meson8b_ao_iface.hw,
|
|
[CLKID_MPLL0] = &meson8b_mpll0.hw,
|
|
[CLKID_MPLL1] = &meson8b_mpll1.hw,
|
|
[CLKID_MPLL2] = &meson8b_mpll2.hw,
|
|
[CLKID_MPLL0_DIV] = &meson8b_mpll0_div.hw,
|
|
[CLKID_MPLL1_DIV] = &meson8b_mpll1_div.hw,
|
|
[CLKID_MPLL2_DIV] = &meson8b_mpll2_div.hw,
|
|
[CLKID_CPU_IN_SEL] = &meson8b_cpu_in_sel.hw,
|
|
[CLKID_CPU_DIV2] = &meson8b_cpu_div2.hw,
|
|
[CLKID_CPU_DIV3] = &meson8b_cpu_div3.hw,
|
|
[CLKID_CPU_SCALE_DIV] = &meson8b_cpu_scale_div.hw,
|
|
[CLKID_CPU_SCALE_OUT_SEL] = &meson8b_cpu_scale_out_sel.hw,
|
|
[CLKID_MPLL_PREDIV] = &meson8b_mpll_prediv.hw,
|
|
[CLKID_FCLK_DIV2_DIV] = &meson8b_fclk_div2_div.hw,
|
|
[CLKID_FCLK_DIV3_DIV] = &meson8b_fclk_div3_div.hw,
|
|
[CLKID_FCLK_DIV4_DIV] = &meson8b_fclk_div4_div.hw,
|
|
[CLKID_FCLK_DIV5_DIV] = &meson8b_fclk_div5_div.hw,
|
|
[CLKID_FCLK_DIV7_DIV] = &meson8b_fclk_div7_div.hw,
|
|
[CLKID_NAND_SEL] = &meson8b_nand_clk_sel.hw,
|
|
[CLKID_NAND_DIV] = &meson8b_nand_clk_div.hw,
|
|
[CLKID_NAND_CLK] = &meson8b_nand_clk_gate.hw,
|
|
[CLKID_PLL_FIXED_DCO] = &meson8b_fixed_pll_dco.hw,
|
|
[CLKID_PLL_VID_DCO] = &meson8b_vid_pll_dco.hw,
|
|
[CLKID_PLL_SYS_DCO] = &meson8b_sys_pll_dco.hw,
|
|
[CLK_NR_CLKS] = NULL,
|
|
},
|
|
.num = CLK_NR_CLKS,
|
|
};
|
|
|
|
static struct clk_regmap *const meson8b_clk_regmaps[] = {
|
|
&meson8b_clk81,
|
|
&meson8b_ddr,
|
|
&meson8b_dos,
|
|
&meson8b_isa,
|
|
&meson8b_pl301,
|
|
&meson8b_periphs,
|
|
&meson8b_spicc,
|
|
&meson8b_i2c,
|
|
&meson8b_sar_adc,
|
|
&meson8b_smart_card,
|
|
&meson8b_rng0,
|
|
&meson8b_uart0,
|
|
&meson8b_sdhc,
|
|
&meson8b_stream,
|
|
&meson8b_async_fifo,
|
|
&meson8b_sdio,
|
|
&meson8b_abuf,
|
|
&meson8b_hiu_iface,
|
|
&meson8b_assist_misc,
|
|
&meson8b_spi,
|
|
&meson8b_i2s_spdif,
|
|
&meson8b_eth,
|
|
&meson8b_demux,
|
|
&meson8b_aiu_glue,
|
|
&meson8b_iec958,
|
|
&meson8b_i2s_out,
|
|
&meson8b_amclk,
|
|
&meson8b_aififo2,
|
|
&meson8b_mixer,
|
|
&meson8b_mixer_iface,
|
|
&meson8b_adc,
|
|
&meson8b_blkmv,
|
|
&meson8b_aiu,
|
|
&meson8b_uart1,
|
|
&meson8b_g2d,
|
|
&meson8b_usb0,
|
|
&meson8b_usb1,
|
|
&meson8b_reset,
|
|
&meson8b_nand,
|
|
&meson8b_dos_parser,
|
|
&meson8b_usb,
|
|
&meson8b_vdin1,
|
|
&meson8b_ahb_arb0,
|
|
&meson8b_efuse,
|
|
&meson8b_boot_rom,
|
|
&meson8b_ahb_data_bus,
|
|
&meson8b_ahb_ctrl_bus,
|
|
&meson8b_hdmi_intr_sync,
|
|
&meson8b_hdmi_pclk,
|
|
&meson8b_usb1_ddr_bridge,
|
|
&meson8b_usb0_ddr_bridge,
|
|
&meson8b_mmc_pclk,
|
|
&meson8b_dvin,
|
|
&meson8b_uart2,
|
|
&meson8b_sana,
|
|
&meson8b_vpu_intr,
|
|
&meson8b_sec_ahb_ahb3_bridge,
|
|
&meson8b_clk81_a9,
|
|
&meson8b_vclk2_venci0,
|
|
&meson8b_vclk2_venci1,
|
|
&meson8b_vclk2_vencp0,
|
|
&meson8b_vclk2_vencp1,
|
|
&meson8b_gclk_venci_int,
|
|
&meson8b_gclk_vencp_int,
|
|
&meson8b_dac_clk,
|
|
&meson8b_aoclk_gate,
|
|
&meson8b_iec958_gate,
|
|
&meson8b_enc480p,
|
|
&meson8b_rng1,
|
|
&meson8b_gclk_vencl_int,
|
|
&meson8b_vclk2_venclmcc,
|
|
&meson8b_vclk2_vencl,
|
|
&meson8b_vclk2_other,
|
|
&meson8b_edp,
|
|
&meson8b_ao_media_cpu,
|
|
&meson8b_ao_ahb_sram,
|
|
&meson8b_ao_ahb_bus,
|
|
&meson8b_ao_iface,
|
|
&meson8b_mpeg_clk_div,
|
|
&meson8b_mpeg_clk_sel,
|
|
&meson8b_mpll0,
|
|
&meson8b_mpll1,
|
|
&meson8b_mpll2,
|
|
&meson8b_mpll0_div,
|
|
&meson8b_mpll1_div,
|
|
&meson8b_mpll2_div,
|
|
&meson8b_fixed_pll,
|
|
&meson8b_vid_pll,
|
|
&meson8b_sys_pll,
|
|
&meson8b_cpu_in_sel,
|
|
&meson8b_cpu_scale_div,
|
|
&meson8b_cpu_scale_out_sel,
|
|
&meson8b_cpu_clk,
|
|
&meson8b_mpll_prediv,
|
|
&meson8b_fclk_div2,
|
|
&meson8b_fclk_div3,
|
|
&meson8b_fclk_div4,
|
|
&meson8b_fclk_div5,
|
|
&meson8b_fclk_div7,
|
|
&meson8b_nand_clk_sel,
|
|
&meson8b_nand_clk_div,
|
|
&meson8b_nand_clk_gate,
|
|
&meson8b_fixed_pll_dco,
|
|
&meson8b_vid_pll_dco,
|
|
&meson8b_sys_pll_dco,
|
|
};
|
|
|
|
static const struct meson8b_clk_reset_line {
|
|
u32 reg;
|
|
u8 bit_idx;
|
|
} meson8b_clk_reset_bits[] = {
|
|
[CLKC_RESET_L2_CACHE_SOFT_RESET] = {
|
|
.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 30
|
|
},
|
|
[CLKC_RESET_AXI_64_TO_128_BRIDGE_A5_SOFT_RESET] = {
|
|
.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 29
|
|
},
|
|
[CLKC_RESET_SCU_SOFT_RESET] = {
|
|
.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 28
|
|
},
|
|
[CLKC_RESET_CPU3_SOFT_RESET] = {
|
|
.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 27
|
|
},
|
|
[CLKC_RESET_CPU2_SOFT_RESET] = {
|
|
.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 26
|
|
},
|
|
[CLKC_RESET_CPU1_SOFT_RESET] = {
|
|
.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 25
|
|
},
|
|
[CLKC_RESET_CPU0_SOFT_RESET] = {
|
|
.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 24
|
|
},
|
|
[CLKC_RESET_A5_GLOBAL_RESET] = {
|
|
.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 18
|
|
},
|
|
[CLKC_RESET_A5_AXI_SOFT_RESET] = {
|
|
.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 17
|
|
},
|
|
[CLKC_RESET_A5_ABP_SOFT_RESET] = {
|
|
.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 16
|
|
},
|
|
[CLKC_RESET_AXI_64_TO_128_BRIDGE_MMC_SOFT_RESET] = {
|
|
.reg = HHI_SYS_CPU_CLK_CNTL1, .bit_idx = 30
|
|
},
|
|
[CLKC_RESET_VID_CLK_CNTL_SOFT_RESET] = {
|
|
.reg = HHI_VID_CLK_CNTL, .bit_idx = 15
|
|
},
|
|
[CLKC_RESET_VID_DIVIDER_CNTL_SOFT_RESET_POST] = {
|
|
.reg = HHI_VID_DIVIDER_CNTL, .bit_idx = 7
|
|
},
|
|
[CLKC_RESET_VID_DIVIDER_CNTL_SOFT_RESET_PRE] = {
|
|
.reg = HHI_VID_DIVIDER_CNTL, .bit_idx = 3
|
|
},
|
|
[CLKC_RESET_VID_DIVIDER_CNTL_RESET_N_POST] = {
|
|
.reg = HHI_VID_DIVIDER_CNTL, .bit_idx = 1
|
|
},
|
|
[CLKC_RESET_VID_DIVIDER_CNTL_RESET_N_PRE] = {
|
|
.reg = HHI_VID_DIVIDER_CNTL, .bit_idx = 0
|
|
},
|
|
};
|
|
|
|
static int meson8b_clk_reset_update(struct reset_controller_dev *rcdev,
|
|
unsigned long id, bool assert)
|
|
{
|
|
struct meson8b_clk_reset *meson8b_clk_reset =
|
|
container_of(rcdev, struct meson8b_clk_reset, reset);
|
|
unsigned long flags;
|
|
const struct meson8b_clk_reset_line *reset;
|
|
|
|
if (id >= ARRAY_SIZE(meson8b_clk_reset_bits))
|
|
return -EINVAL;
|
|
|
|
reset = &meson8b_clk_reset_bits[id];
|
|
|
|
spin_lock_irqsave(&meson_clk_lock, flags);
|
|
|
|
if (assert)
|
|
regmap_update_bits(meson8b_clk_reset->regmap, reset->reg,
|
|
BIT(reset->bit_idx), BIT(reset->bit_idx));
|
|
else
|
|
regmap_update_bits(meson8b_clk_reset->regmap, reset->reg,
|
|
BIT(reset->bit_idx), 0);
|
|
|
|
spin_unlock_irqrestore(&meson_clk_lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int meson8b_clk_reset_assert(struct reset_controller_dev *rcdev,
|
|
unsigned long id)
|
|
{
|
|
return meson8b_clk_reset_update(rcdev, id, true);
|
|
}
|
|
|
|
static int meson8b_clk_reset_deassert(struct reset_controller_dev *rcdev,
|
|
unsigned long id)
|
|
{
|
|
return meson8b_clk_reset_update(rcdev, id, false);
|
|
}
|
|
|
|
static const struct reset_control_ops meson8b_clk_reset_ops = {
|
|
.assert = meson8b_clk_reset_assert,
|
|
.deassert = meson8b_clk_reset_deassert,
|
|
};
|
|
|
|
static const struct regmap_config clkc_regmap_config = {
|
|
.reg_bits = 32,
|
|
.val_bits = 32,
|
|
.reg_stride = 4,
|
|
};
|
|
|
|
static void __init meson8b_clkc_init(struct device_node *np)
|
|
{
|
|
struct meson8b_clk_reset *rstc;
|
|
void __iomem *clk_base;
|
|
struct regmap *map;
|
|
int i, ret;
|
|
|
|
map = syscon_node_to_regmap(of_get_parent(np));
|
|
if (IS_ERR(map)) {
|
|
pr_info("failed to get HHI regmap - Trying obsolete regs\n");
|
|
|
|
/* Generic clocks, PLLs and some of the reset-bits */
|
|
clk_base = of_iomap(np, 1);
|
|
if (!clk_base) {
|
|
pr_err("%s: Unable to map clk base\n", __func__);
|
|
return;
|
|
}
|
|
|
|
map = regmap_init_mmio(NULL, clk_base, &clkc_regmap_config);
|
|
if (IS_ERR(map))
|
|
return;
|
|
}
|
|
|
|
rstc = kzalloc(sizeof(*rstc), GFP_KERNEL);
|
|
if (!rstc)
|
|
return;
|
|
|
|
/* Reset Controller */
|
|
rstc->regmap = map;
|
|
rstc->reset.ops = &meson8b_clk_reset_ops;
|
|
rstc->reset.nr_resets = ARRAY_SIZE(meson8b_clk_reset_bits);
|
|
rstc->reset.of_node = np;
|
|
ret = reset_controller_register(&rstc->reset);
|
|
if (ret) {
|
|
pr_err("%s: Failed to register clkc reset controller: %d\n",
|
|
__func__, ret);
|
|
return;
|
|
}
|
|
|
|
/* Populate regmap for the regmap backed clocks */
|
|
for (i = 0; i < ARRAY_SIZE(meson8b_clk_regmaps); i++)
|
|
meson8b_clk_regmaps[i]->map = map;
|
|
|
|
/*
|
|
* register all clks
|
|
* CLKID_UNUSED = 0, so skip it and start with CLKID_XTAL = 1
|
|
*/
|
|
for (i = CLKID_XTAL; i < CLK_NR_CLKS; i++) {
|
|
/* array might be sparse */
|
|
if (!meson8b_hw_onecell_data.hws[i])
|
|
continue;
|
|
|
|
ret = clk_hw_register(NULL, meson8b_hw_onecell_data.hws[i]);
|
|
if (ret)
|
|
return;
|
|
}
|
|
|
|
ret = of_clk_add_hw_provider(np, of_clk_hw_onecell_get,
|
|
&meson8b_hw_onecell_data);
|
|
if (ret)
|
|
pr_err("%s: failed to register clock provider\n", __func__);
|
|
}
|
|
|
|
CLK_OF_DECLARE_DRIVER(meson8_clkc, "amlogic,meson8-clkc",
|
|
meson8b_clkc_init);
|
|
CLK_OF_DECLARE_DRIVER(meson8b_clkc, "amlogic,meson8b-clkc",
|
|
meson8b_clkc_init);
|
|
CLK_OF_DECLARE_DRIVER(meson8m2_clkc, "amlogic,meson8m2-clkc",
|
|
meson8b_clkc_init);
|