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linux/drivers/clk/meson/axg.c
Stephen Boyd 5d1c04dde0 clk: meson: Drop unused local variable and add static 
Fixes the following warnings:

drivers/clk/meson/meson8b.c:512:19: warning: symbol 'meson8b_mpeg_clk_div' was not declared. Should it be static?
drivers/clk/meson/meson8b.c:526:19: warning: symbol 'meson8b_clk81' was not declared. Should it be static?
drivers/clk/meson/meson8b.c:540:19: warning: symbol 'meson8b_cpu_in_sel' was not declared. Should it be static?
drivers/clk/meson/meson8b.c:591:19: warning: symbol 'meson8b_cpu_scale_div' was not declared. Should it be static?
drivers/clk/meson/meson8b.c:608:19: warning: symbol 'meson8b_cpu_scale_out_sel' was not declared. Should it be static?
drivers/clk/meson/meson8b.c:626:19: warning: symbol 'meson8b_cpu_clk' was not declared. Should it be static?
drivers/clk/meson/gxbb.c:392:27: warning: symbol 'gxbb_gp0_init_regs' was not declared. Should it be static?
drivers/clk/meson/gxbb.c:439:27: warning: symbol 'gxl_gp0_init_regs' was not declared. Should it be static?
drivers/clk/meson/axg.c:195:27: warning: symbol 'axg_gp0_init_regs' was not declared. Should it be static?
drivers/clk/meson/axg.c:248:27: warning: symbol 'axg_hifi_init_regs' was not declared. Should it be static?
drivers/clk/meson/meson8b.c: In function 'meson8b_clkc_probe':
drivers/clk/meson/meson8b.c:1052:14: warning: unused variable 'clk' [-Wunused-variable]

Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-03-14 15:36:31 -07:00

1068 lines
27 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0+
/*
* AmLogic Meson-AXG Clock Controller Driver
*
* Copyright (c) 2016 Baylibre SAS.
* Author: Michael Turquette <mturquette@baylibre.com>
*
* Copyright (c) 2017 Amlogic, inc.
* Author: Qiufang Dai <qiufang.dai@amlogic.com>
*/
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/init.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/mfd/syscon.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include "clkc.h"
#include "axg.h"
static DEFINE_SPINLOCK(meson_clk_lock);
static struct clk_regmap axg_fixed_pll = {
.data = &(struct meson_clk_pll_data){
.m = {
.reg_off = HHI_MPLL_CNTL,
.shift = 0,
.width = 9,
},
.n = {
.reg_off = HHI_MPLL_CNTL,
.shift = 9,
.width = 5,
},
.od = {
.reg_off = HHI_MPLL_CNTL,
.shift = 16,
.width = 2,
},
.frac = {
.reg_off = HHI_MPLL_CNTL2,
.shift = 0,
.width = 12,
},
.l = {
.reg_off = HHI_MPLL_CNTL,
.shift = 31,
.width = 1,
},
.rst = {
.reg_off = HHI_MPLL_CNTL,
.shift = 29,
.width = 1,
},
},
.hw.init = &(struct clk_init_data){
.name = "fixed_pll",
.ops = &meson_clk_pll_ro_ops,
.parent_names = (const char *[]){ "xtal" },
.num_parents = 1,
},
};
static struct clk_regmap axg_sys_pll = {
.data = &(struct meson_clk_pll_data){
.m = {
.reg_off = HHI_SYS_PLL_CNTL,
.shift = 0,
.width = 9,
},
.n = {
.reg_off = HHI_SYS_PLL_CNTL,
.shift = 9,
.width = 5,
},
.od = {
.reg_off = HHI_SYS_PLL_CNTL,
.shift = 16,
.width = 2,
},
.l = {
.reg_off = HHI_SYS_PLL_CNTL,
.shift = 31,
.width = 1,
},
.rst = {
.reg_off = HHI_SYS_PLL_CNTL,
.shift = 29,
.width = 1,
},
},
.hw.init = &(struct clk_init_data){
.name = "sys_pll",
.ops = &meson_clk_pll_ro_ops,
.parent_names = (const char *[]){ "xtal" },
.num_parents = 1,
.flags = CLK_GET_RATE_NOCACHE,
},
};
static const struct pll_rate_table axg_gp0_pll_rate_table[] = {
PLL_RATE(240000000, 40, 1, 2),
PLL_RATE(246000000, 41, 1, 2),
PLL_RATE(252000000, 42, 1, 2),
PLL_RATE(258000000, 43, 1, 2),
PLL_RATE(264000000, 44, 1, 2),
PLL_RATE(270000000, 45, 1, 2),
PLL_RATE(276000000, 46, 1, 2),
PLL_RATE(282000000, 47, 1, 2),
PLL_RATE(288000000, 48, 1, 2),
PLL_RATE(294000000, 49, 1, 2),
PLL_RATE(300000000, 50, 1, 2),
PLL_RATE(306000000, 51, 1, 2),
PLL_RATE(312000000, 52, 1, 2),
PLL_RATE(318000000, 53, 1, 2),
PLL_RATE(324000000, 54, 1, 2),
PLL_RATE(330000000, 55, 1, 2),
PLL_RATE(336000000, 56, 1, 2),
PLL_RATE(342000000, 57, 1, 2),
PLL_RATE(348000000, 58, 1, 2),
PLL_RATE(354000000, 59, 1, 2),
PLL_RATE(360000000, 60, 1, 2),
PLL_RATE(366000000, 61, 1, 2),
PLL_RATE(372000000, 62, 1, 2),
PLL_RATE(378000000, 63, 1, 2),
PLL_RATE(384000000, 64, 1, 2),
PLL_RATE(390000000, 65, 1, 3),
PLL_RATE(396000000, 66, 1, 3),
PLL_RATE(402000000, 67, 1, 3),
PLL_RATE(408000000, 68, 1, 3),
PLL_RATE(480000000, 40, 1, 1),
PLL_RATE(492000000, 41, 1, 1),
PLL_RATE(504000000, 42, 1, 1),
PLL_RATE(516000000, 43, 1, 1),
PLL_RATE(528000000, 44, 1, 1),
PLL_RATE(540000000, 45, 1, 1),
PLL_RATE(552000000, 46, 1, 1),
PLL_RATE(564000000, 47, 1, 1),
PLL_RATE(576000000, 48, 1, 1),
PLL_RATE(588000000, 49, 1, 1),
PLL_RATE(600000000, 50, 1, 1),
PLL_RATE(612000000, 51, 1, 1),
PLL_RATE(624000000, 52, 1, 1),
PLL_RATE(636000000, 53, 1, 1),
PLL_RATE(648000000, 54, 1, 1),
PLL_RATE(660000000, 55, 1, 1),
PLL_RATE(672000000, 56, 1, 1),
PLL_RATE(684000000, 57, 1, 1),
PLL_RATE(696000000, 58, 1, 1),
PLL_RATE(708000000, 59, 1, 1),
PLL_RATE(720000000, 60, 1, 1),
PLL_RATE(732000000, 61, 1, 1),
PLL_RATE(744000000, 62, 1, 1),
PLL_RATE(756000000, 63, 1, 1),
PLL_RATE(768000000, 64, 1, 1),
PLL_RATE(780000000, 65, 1, 1),
PLL_RATE(792000000, 66, 1, 1),
PLL_RATE(804000000, 67, 1, 1),
PLL_RATE(816000000, 68, 1, 1),
PLL_RATE(960000000, 40, 1, 0),
PLL_RATE(984000000, 41, 1, 0),
PLL_RATE(1008000000, 42, 1, 0),
PLL_RATE(1032000000, 43, 1, 0),
PLL_RATE(1056000000, 44, 1, 0),
PLL_RATE(1080000000, 45, 1, 0),
PLL_RATE(1104000000, 46, 1, 0),
PLL_RATE(1128000000, 47, 1, 0),
PLL_RATE(1152000000, 48, 1, 0),
PLL_RATE(1176000000, 49, 1, 0),
PLL_RATE(1200000000, 50, 1, 0),
PLL_RATE(1224000000, 51, 1, 0),
PLL_RATE(1248000000, 52, 1, 0),
PLL_RATE(1272000000, 53, 1, 0),
PLL_RATE(1296000000, 54, 1, 0),
PLL_RATE(1320000000, 55, 1, 0),
PLL_RATE(1344000000, 56, 1, 0),
PLL_RATE(1368000000, 57, 1, 0),
PLL_RATE(1392000000, 58, 1, 0),
PLL_RATE(1416000000, 59, 1, 0),
PLL_RATE(1440000000, 60, 1, 0),
PLL_RATE(1464000000, 61, 1, 0),
PLL_RATE(1488000000, 62, 1, 0),
PLL_RATE(1512000000, 63, 1, 0),
PLL_RATE(1536000000, 64, 1, 0),
PLL_RATE(1560000000, 65, 1, 0),
PLL_RATE(1584000000, 66, 1, 0),
PLL_RATE(1608000000, 67, 1, 0),
PLL_RATE(1632000000, 68, 1, 0),
{ /* sentinel */ },
};
static const struct reg_sequence axg_gp0_init_regs[] = {
{ .reg = HHI_GP0_PLL_CNTL1, .def = 0xc084b000 },
{ .reg = HHI_GP0_PLL_CNTL2, .def = 0xb75020be },
{ .reg = HHI_GP0_PLL_CNTL3, .def = 0x0a59a288 },
{ .reg = HHI_GP0_PLL_CNTL4, .def = 0xc000004d },
{ .reg = HHI_GP0_PLL_CNTL5, .def = 0x00078000 },
{ .reg = HHI_GP0_PLL_CNTL, .def = 0x40010250 },
};
static struct clk_regmap axg_gp0_pll = {
.data = &(struct meson_clk_pll_data){
.m = {
.reg_off = HHI_GP0_PLL_CNTL,
.shift = 0,
.width = 9,
},
.n = {
.reg_off = HHI_GP0_PLL_CNTL,
.shift = 9,
.width = 5,
},
.od = {
.reg_off = HHI_GP0_PLL_CNTL,
.shift = 16,
.width = 2,
},
.frac = {
.reg_off = HHI_GP0_PLL_CNTL1,
.shift = 0,
.width = 10,
},
.l = {
.reg_off = HHI_GP0_PLL_CNTL,
.shift = 31,
.width = 1,
},
.rst = {
.reg_off = HHI_GP0_PLL_CNTL,
.shift = 29,
.width = 1,
},
.table = axg_gp0_pll_rate_table,
.init_regs = axg_gp0_init_regs,
.init_count = ARRAY_SIZE(axg_gp0_init_regs),
},
.hw.init = &(struct clk_init_data){
.name = "gp0_pll",
.ops = &meson_clk_pll_ops,
.parent_names = (const char *[]){ "xtal" },
.num_parents = 1,
},
};
static const struct reg_sequence axg_hifi_init_regs[] = {
{ .reg = HHI_HIFI_PLL_CNTL1, .def = 0xc084b000 },
{ .reg = HHI_HIFI_PLL_CNTL2, .def = 0xb75020be },
{ .reg = HHI_HIFI_PLL_CNTL3, .def = 0x0a6a3a88 },
{ .reg = HHI_HIFI_PLL_CNTL4, .def = 0xc000004d },
{ .reg = HHI_HIFI_PLL_CNTL5, .def = 0x00058000 },
{ .reg = HHI_HIFI_PLL_CNTL, .def = 0x40010250 },
};
static struct clk_regmap axg_hifi_pll = {
.data = &(struct meson_clk_pll_data){
.m = {
.reg_off = HHI_HIFI_PLL_CNTL,
.shift = 0,
.width = 9,
},
.n = {
.reg_off = HHI_HIFI_PLL_CNTL,
.shift = 9,
.width = 5,
},
.od = {
.reg_off = HHI_HIFI_PLL_CNTL,
.shift = 16,
.width = 2,
},
.frac = {
.reg_off = HHI_HIFI_PLL_CNTL5,
.shift = 0,
.width = 13,
},
.l = {
.reg_off = HHI_HIFI_PLL_CNTL,
.shift = 31,
.width = 1,
},
.rst = {
.reg_off = HHI_HIFI_PLL_CNTL,
.shift = 29,
.width = 1,
},
.table = axg_gp0_pll_rate_table,
.init_regs = axg_hifi_init_regs,
.init_count = ARRAY_SIZE(axg_hifi_init_regs),
.flags = CLK_MESON_PLL_ROUND_CLOSEST,
},
.hw.init = &(struct clk_init_data){
.name = "hifi_pll",
.ops = &meson_clk_pll_ops,
.parent_names = (const char *[]){ "xtal" },
.num_parents = 1,
},
};
static struct clk_fixed_factor axg_fclk_div2_div = {
.mult = 1,
.div = 2,
.hw.init = &(struct clk_init_data){
.name = "fclk_div2_div",
.ops = &clk_fixed_factor_ops,
.parent_names = (const char *[]){ "fixed_pll" },
.num_parents = 1,
},
};
static struct clk_regmap axg_fclk_div2 = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_MPLL_CNTL6,
.bit_idx = 27,
},
.hw.init = &(struct clk_init_data){
.name = "fclk_div2",
.ops = &clk_regmap_gate_ops,
.parent_names = (const char *[]){ "fclk_div2_div" },
.num_parents = 1,
},
};
static struct clk_fixed_factor axg_fclk_div3_div = {
.mult = 1,
.div = 3,
.hw.init = &(struct clk_init_data){
.name = "fclk_div3_div",
.ops = &clk_fixed_factor_ops,
.parent_names = (const char *[]){ "fixed_pll" },
.num_parents = 1,
},
};
static struct clk_regmap axg_fclk_div3 = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_MPLL_CNTL6,
.bit_idx = 28,
},
.hw.init = &(struct clk_init_data){
.name = "fclk_div3",
.ops = &clk_regmap_gate_ops,
.parent_names = (const char *[]){ "fclk_div3_div" },
.num_parents = 1,
},
};
static struct clk_fixed_factor axg_fclk_div4_div = {
.mult = 1,
.div = 4,
.hw.init = &(struct clk_init_data){
.name = "fclk_div4_div",
.ops = &clk_fixed_factor_ops,
.parent_names = (const char *[]){ "fixed_pll" },
.num_parents = 1,
},
};
static struct clk_regmap axg_fclk_div4 = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_MPLL_CNTL6,
.bit_idx = 29,
},
.hw.init = &(struct clk_init_data){
.name = "fclk_div4",
.ops = &clk_regmap_gate_ops,
.parent_names = (const char *[]){ "fclk_div4_div" },
.num_parents = 1,
},
};
static struct clk_fixed_factor axg_fclk_div5_div = {
.mult = 1,
.div = 5,
.hw.init = &(struct clk_init_data){
.name = "fclk_div5_div",
.ops = &clk_fixed_factor_ops,
.parent_names = (const char *[]){ "fixed_pll" },
.num_parents = 1,
},
};
static struct clk_regmap axg_fclk_div5 = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_MPLL_CNTL6,
.bit_idx = 30,
},
.hw.init = &(struct clk_init_data){
.name = "fclk_div5",
.ops = &clk_regmap_gate_ops,
.parent_names = (const char *[]){ "fclk_div5_div" },
.num_parents = 1,
},
};
static struct clk_fixed_factor axg_fclk_div7_div = {
.mult = 1,
.div = 7,
.hw.init = &(struct clk_init_data){
.name = "fclk_div7_div",
.ops = &clk_fixed_factor_ops,
.parent_names = (const char *[]){ "fixed_pll" },
.num_parents = 1,
},
};
static struct clk_regmap axg_fclk_div7 = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_MPLL_CNTL6,
.bit_idx = 31,
},
.hw.init = &(struct clk_init_data){
.name = "fclk_div7",
.ops = &clk_regmap_gate_ops,
.parent_names = (const char *[]){ "fclk_div7_div" },
.num_parents = 1,
},
};
static struct clk_regmap axg_mpll_prediv = {
.data = &(struct clk_regmap_div_data){
.offset = HHI_MPLL_CNTL5,
.shift = 12,
.width = 1,
},
.hw.init = &(struct clk_init_data){
.name = "mpll_prediv",
.ops = &clk_regmap_divider_ro_ops,
.parent_names = (const char *[]){ "fixed_pll" },
.num_parents = 1,
},
};
static struct clk_regmap axg_mpll0_div = {
.data = &(struct meson_clk_mpll_data){
.sdm = {
.reg_off = HHI_MPLL_CNTL7,
.shift = 0,
.width = 14,
},
.sdm_en = {
.reg_off = HHI_MPLL_CNTL7,
.shift = 15,
.width = 1,
},
.n2 = {
.reg_off = HHI_MPLL_CNTL7,
.shift = 16,
.width = 9,
},
.ssen = {
.reg_off = HHI_MPLL_CNTL,
.shift = 25,
.width = 1,
},
.misc = {
.reg_off = HHI_PLL_TOP_MISC,
.shift = 0,
.width = 1,
},
.lock = &meson_clk_lock,
},
.hw.init = &(struct clk_init_data){
.name = "mpll0_div",
.ops = &meson_clk_mpll_ops,
.parent_names = (const char *[]){ "mpll_prediv" },
.num_parents = 1,
},
};
static struct clk_regmap axg_mpll0 = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_MPLL_CNTL7,
.bit_idx = 14,
},
.hw.init = &(struct clk_init_data){
.name = "mpll0",
.ops = &clk_regmap_gate_ops,
.parent_names = (const char *[]){ "mpll0_div" },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
static struct clk_regmap axg_mpll1_div = {
.data = &(struct meson_clk_mpll_data){
.sdm = {
.reg_off = HHI_MPLL_CNTL8,
.shift = 0,
.width = 14,
},
.sdm_en = {
.reg_off = HHI_MPLL_CNTL8,
.shift = 15,
.width = 1,
},
.n2 = {
.reg_off = HHI_MPLL_CNTL8,
.shift = 16,
.width = 9,
},
.misc = {
.reg_off = HHI_PLL_TOP_MISC,
.shift = 1,
.width = 1,
},
.lock = &meson_clk_lock,
},
.hw.init = &(struct clk_init_data){
.name = "mpll1_div",
.ops = &meson_clk_mpll_ops,
.parent_names = (const char *[]){ "mpll_prediv" },
.num_parents = 1,
},
};
static struct clk_regmap axg_mpll1 = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_MPLL_CNTL8,
.bit_idx = 14,
},
.hw.init = &(struct clk_init_data){
.name = "mpll1",
.ops = &clk_regmap_gate_ops,
.parent_names = (const char *[]){ "mpll1_div" },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
static struct clk_regmap axg_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,
},
.misc = {
.reg_off = HHI_PLL_TOP_MISC,
.shift = 2,
.width = 1,
},
.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 axg_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 struct clk_regmap axg_mpll3_div = {
.data = &(struct meson_clk_mpll_data){
.sdm = {
.reg_off = HHI_MPLL3_CNTL0,
.shift = 12,
.width = 14,
},
.sdm_en = {
.reg_off = HHI_MPLL3_CNTL0,
.shift = 11,
.width = 1,
},
.n2 = {
.reg_off = HHI_MPLL3_CNTL0,
.shift = 2,
.width = 9,
},
.misc = {
.reg_off = HHI_PLL_TOP_MISC,
.shift = 3,
.width = 1,
},
.lock = &meson_clk_lock,
},
.hw.init = &(struct clk_init_data){
.name = "mpll3_div",
.ops = &meson_clk_mpll_ops,
.parent_names = (const char *[]){ "mpll_prediv" },
.num_parents = 1,
},
};
static struct clk_regmap axg_mpll3 = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_MPLL3_CNTL0,
.bit_idx = 0,
},
.hw.init = &(struct clk_init_data){
.name = "mpll3",
.ops = &clk_regmap_gate_ops,
.parent_names = (const char *[]){ "mpll3_div" },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
static u32 mux_table_clk81[] = { 0, 2, 3, 4, 5, 6, 7 };
static const char * const clk81_parent_names[] = {
"xtal", "fclk_div7", "mpll1", "mpll2", "fclk_div4",
"fclk_div3", "fclk_div5"
};
static struct clk_regmap axg_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,
.parent_names = clk81_parent_names,
.num_parents = ARRAY_SIZE(clk81_parent_names),
},
};
static struct clk_regmap axg_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_ops,
.parent_names = (const char *[]){ "mpeg_clk_sel" },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
static struct clk_regmap axg_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_SET_RATE_PARENT | CLK_IS_CRITICAL),
},
};
static const char * const axg_sd_emmc_clk0_parent_names[] = {
"xtal", "fclk_div2", "fclk_div3", "fclk_div5", "fclk_div7",
/*
* Following these parent clocks, we should also have had mpll2, mpll3
* and gp0_pll but these clocks are too precious to be used here. All
* the necessary rates for MMC and NAND operation can be acheived using
* xtal or fclk_div clocks
*/
};
/* SDcard clock */
static struct clk_regmap axg_sd_emmc_b_clk0_sel = {
.data = &(struct clk_regmap_mux_data){
.offset = HHI_SD_EMMC_CLK_CNTL,
.mask = 0x7,
.shift = 25,
},
.hw.init = &(struct clk_init_data) {
.name = "sd_emmc_b_clk0_sel",
.ops = &clk_regmap_mux_ops,
.parent_names = axg_sd_emmc_clk0_parent_names,
.num_parents = ARRAY_SIZE(axg_sd_emmc_clk0_parent_names),
.flags = CLK_SET_RATE_PARENT,
},
};
static struct clk_regmap axg_sd_emmc_b_clk0_div = {
.data = &(struct clk_regmap_div_data){
.offset = HHI_SD_EMMC_CLK_CNTL,
.shift = 16,
.width = 7,
.flags = CLK_DIVIDER_ROUND_CLOSEST,
},
.hw.init = &(struct clk_init_data) {
.name = "sd_emmc_b_clk0_div",
.ops = &clk_regmap_divider_ops,
.parent_names = (const char *[]){ "sd_emmc_b_clk0_sel" },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
static struct clk_regmap axg_sd_emmc_b_clk0 = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_SD_EMMC_CLK_CNTL,
.bit_idx = 23,
},
.hw.init = &(struct clk_init_data){
.name = "sd_emmc_b_clk0",
.ops = &clk_regmap_gate_ops,
.parent_names = (const char *[]){ "sd_emmc_b_clk0_div" },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
/* EMMC/NAND clock */
static struct clk_regmap axg_sd_emmc_c_clk0_sel = {
.data = &(struct clk_regmap_mux_data){
.offset = HHI_NAND_CLK_CNTL,
.mask = 0x7,
.shift = 9,
},
.hw.init = &(struct clk_init_data) {
.name = "sd_emmc_c_clk0_sel",
.ops = &clk_regmap_mux_ops,
.parent_names = axg_sd_emmc_clk0_parent_names,
.num_parents = ARRAY_SIZE(axg_sd_emmc_clk0_parent_names),
.flags = CLK_SET_RATE_PARENT,
},
};
static struct clk_regmap axg_sd_emmc_c_clk0_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 = "sd_emmc_c_clk0_div",
.ops = &clk_regmap_divider_ops,
.parent_names = (const char *[]){ "sd_emmc_c_clk0_sel" },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
static struct clk_regmap axg_sd_emmc_c_clk0 = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_NAND_CLK_CNTL,
.bit_idx = 7,
},
.hw.init = &(struct clk_init_data){
.name = "sd_emmc_c_clk0",
.ops = &clk_regmap_gate_ops,
.parent_names = (const char *[]){ "sd_emmc_c_clk0_div" },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
/* Everything Else (EE) domain gates */
static MESON_GATE(axg_ddr, HHI_GCLK_MPEG0, 0);
static MESON_GATE(axg_audio_locker, HHI_GCLK_MPEG0, 2);
static MESON_GATE(axg_mipi_dsi_host, HHI_GCLK_MPEG0, 3);
static MESON_GATE(axg_isa, HHI_GCLK_MPEG0, 5);
static MESON_GATE(axg_pl301, HHI_GCLK_MPEG0, 6);
static MESON_GATE(axg_periphs, HHI_GCLK_MPEG0, 7);
static MESON_GATE(axg_spicc_0, HHI_GCLK_MPEG0, 8);
static MESON_GATE(axg_i2c, HHI_GCLK_MPEG0, 9);
static MESON_GATE(axg_rng0, HHI_GCLK_MPEG0, 12);
static MESON_GATE(axg_uart0, HHI_GCLK_MPEG0, 13);
static MESON_GATE(axg_mipi_dsi_phy, HHI_GCLK_MPEG0, 14);
static MESON_GATE(axg_spicc_1, HHI_GCLK_MPEG0, 15);
static MESON_GATE(axg_pcie_a, HHI_GCLK_MPEG0, 16);
static MESON_GATE(axg_pcie_b, HHI_GCLK_MPEG0, 17);
static MESON_GATE(axg_hiu_reg, HHI_GCLK_MPEG0, 19);
static MESON_GATE(axg_assist_misc, HHI_GCLK_MPEG0, 23);
static MESON_GATE(axg_emmc_b, HHI_GCLK_MPEG0, 25);
static MESON_GATE(axg_emmc_c, HHI_GCLK_MPEG0, 26);
static MESON_GATE(axg_dma, HHI_GCLK_MPEG0, 27);
static MESON_GATE(axg_spi, HHI_GCLK_MPEG0, 30);
static MESON_GATE(axg_audio, HHI_GCLK_MPEG1, 0);
static MESON_GATE(axg_eth_core, HHI_GCLK_MPEG1, 3);
static MESON_GATE(axg_uart1, HHI_GCLK_MPEG1, 16);
static MESON_GATE(axg_g2d, HHI_GCLK_MPEG1, 20);
static MESON_GATE(axg_usb0, HHI_GCLK_MPEG1, 21);
static MESON_GATE(axg_usb1, HHI_GCLK_MPEG1, 22);
static MESON_GATE(axg_reset, HHI_GCLK_MPEG1, 23);
static MESON_GATE(axg_usb_general, HHI_GCLK_MPEG1, 26);
static MESON_GATE(axg_ahb_arb0, HHI_GCLK_MPEG1, 29);
static MESON_GATE(axg_efuse, HHI_GCLK_MPEG1, 30);
static MESON_GATE(axg_boot_rom, HHI_GCLK_MPEG1, 31);
static MESON_GATE(axg_ahb_data_bus, HHI_GCLK_MPEG2, 1);
static MESON_GATE(axg_ahb_ctrl_bus, HHI_GCLK_MPEG2, 2);
static MESON_GATE(axg_usb1_to_ddr, HHI_GCLK_MPEG2, 8);
static MESON_GATE(axg_usb0_to_ddr, HHI_GCLK_MPEG2, 9);
static MESON_GATE(axg_mmc_pclk, HHI_GCLK_MPEG2, 11);
static MESON_GATE(axg_vpu_intr, HHI_GCLK_MPEG2, 25);
static MESON_GATE(axg_sec_ahb_ahb3_bridge, HHI_GCLK_MPEG2, 26);
static MESON_GATE(axg_gic, HHI_GCLK_MPEG2, 30);
/* Always On (AO) domain gates */
static MESON_GATE(axg_ao_media_cpu, HHI_GCLK_AO, 0);
static MESON_GATE(axg_ao_ahb_sram, HHI_GCLK_AO, 1);
static MESON_GATE(axg_ao_ahb_bus, HHI_GCLK_AO, 2);
static MESON_GATE(axg_ao_iface, HHI_GCLK_AO, 3);
static MESON_GATE(axg_ao_i2c, HHI_GCLK_AO, 4);
/* Array of all clocks provided by this provider */
static struct clk_hw_onecell_data axg_hw_onecell_data = {
.hws = {
[CLKID_SYS_PLL] = &axg_sys_pll.hw,
[CLKID_FIXED_PLL] = &axg_fixed_pll.hw,
[CLKID_FCLK_DIV2] = &axg_fclk_div2.hw,
[CLKID_FCLK_DIV3] = &axg_fclk_div3.hw,
[CLKID_FCLK_DIV4] = &axg_fclk_div4.hw,
[CLKID_FCLK_DIV5] = &axg_fclk_div5.hw,
[CLKID_FCLK_DIV7] = &axg_fclk_div7.hw,
[CLKID_GP0_PLL] = &axg_gp0_pll.hw,
[CLKID_MPEG_SEL] = &axg_mpeg_clk_sel.hw,
[CLKID_MPEG_DIV] = &axg_mpeg_clk_div.hw,
[CLKID_CLK81] = &axg_clk81.hw,
[CLKID_MPLL0] = &axg_mpll0.hw,
[CLKID_MPLL1] = &axg_mpll1.hw,
[CLKID_MPLL2] = &axg_mpll2.hw,
[CLKID_MPLL3] = &axg_mpll3.hw,
[CLKID_DDR] = &axg_ddr.hw,
[CLKID_AUDIO_LOCKER] = &axg_audio_locker.hw,
[CLKID_MIPI_DSI_HOST] = &axg_mipi_dsi_host.hw,
[CLKID_ISA] = &axg_isa.hw,
[CLKID_PL301] = &axg_pl301.hw,
[CLKID_PERIPHS] = &axg_periphs.hw,
[CLKID_SPICC0] = &axg_spicc_0.hw,
[CLKID_I2C] = &axg_i2c.hw,
[CLKID_RNG0] = &axg_rng0.hw,
[CLKID_UART0] = &axg_uart0.hw,
[CLKID_MIPI_DSI_PHY] = &axg_mipi_dsi_phy.hw,
[CLKID_SPICC1] = &axg_spicc_1.hw,
[CLKID_PCIE_A] = &axg_pcie_a.hw,
[CLKID_PCIE_B] = &axg_pcie_b.hw,
[CLKID_HIU_IFACE] = &axg_hiu_reg.hw,
[CLKID_ASSIST_MISC] = &axg_assist_misc.hw,
[CLKID_SD_EMMC_B] = &axg_emmc_b.hw,
[CLKID_SD_EMMC_C] = &axg_emmc_c.hw,
[CLKID_DMA] = &axg_dma.hw,
[CLKID_SPI] = &axg_spi.hw,
[CLKID_AUDIO] = &axg_audio.hw,
[CLKID_ETH] = &axg_eth_core.hw,
[CLKID_UART1] = &axg_uart1.hw,
[CLKID_G2D] = &axg_g2d.hw,
[CLKID_USB0] = &axg_usb0.hw,
[CLKID_USB1] = &axg_usb1.hw,
[CLKID_RESET] = &axg_reset.hw,
[CLKID_USB] = &axg_usb_general.hw,
[CLKID_AHB_ARB0] = &axg_ahb_arb0.hw,
[CLKID_EFUSE] = &axg_efuse.hw,
[CLKID_BOOT_ROM] = &axg_boot_rom.hw,
[CLKID_AHB_DATA_BUS] = &axg_ahb_data_bus.hw,
[CLKID_AHB_CTRL_BUS] = &axg_ahb_ctrl_bus.hw,
[CLKID_USB1_DDR_BRIDGE] = &axg_usb1_to_ddr.hw,
[CLKID_USB0_DDR_BRIDGE] = &axg_usb0_to_ddr.hw,
[CLKID_MMC_PCLK] = &axg_mmc_pclk.hw,
[CLKID_VPU_INTR] = &axg_vpu_intr.hw,
[CLKID_SEC_AHB_AHB3_BRIDGE] = &axg_sec_ahb_ahb3_bridge.hw,
[CLKID_GIC] = &axg_gic.hw,
[CLKID_AO_MEDIA_CPU] = &axg_ao_media_cpu.hw,
[CLKID_AO_AHB_SRAM] = &axg_ao_ahb_sram.hw,
[CLKID_AO_AHB_BUS] = &axg_ao_ahb_bus.hw,
[CLKID_AO_IFACE] = &axg_ao_iface.hw,
[CLKID_AO_I2C] = &axg_ao_i2c.hw,
[CLKID_SD_EMMC_B_CLK0_SEL] = &axg_sd_emmc_b_clk0_sel.hw,
[CLKID_SD_EMMC_B_CLK0_DIV] = &axg_sd_emmc_b_clk0_div.hw,
[CLKID_SD_EMMC_B_CLK0] = &axg_sd_emmc_b_clk0.hw,
[CLKID_SD_EMMC_C_CLK0_SEL] = &axg_sd_emmc_c_clk0_sel.hw,
[CLKID_SD_EMMC_C_CLK0_DIV] = &axg_sd_emmc_c_clk0_div.hw,
[CLKID_SD_EMMC_C_CLK0] = &axg_sd_emmc_c_clk0.hw,
[CLKID_MPLL0_DIV] = &axg_mpll0_div.hw,
[CLKID_MPLL1_DIV] = &axg_mpll1_div.hw,
[CLKID_MPLL2_DIV] = &axg_mpll2_div.hw,
[CLKID_MPLL3_DIV] = &axg_mpll3_div.hw,
[CLKID_HIFI_PLL] = &axg_hifi_pll.hw,
[CLKID_MPLL_PREDIV] = &axg_mpll_prediv.hw,
[CLKID_FCLK_DIV2_DIV] = &axg_fclk_div2_div.hw,
[CLKID_FCLK_DIV3_DIV] = &axg_fclk_div3_div.hw,
[CLKID_FCLK_DIV4_DIV] = &axg_fclk_div4_div.hw,
[CLKID_FCLK_DIV5_DIV] = &axg_fclk_div5_div.hw,
[CLKID_FCLK_DIV7_DIV] = &axg_fclk_div7_div.hw,
[NR_CLKS] = NULL,
},
.num = NR_CLKS,
};
/* Convenience table to populate regmap in .probe */
static struct clk_regmap *const axg_clk_regmaps[] = {
&axg_clk81,
&axg_ddr,
&axg_audio_locker,
&axg_mipi_dsi_host,
&axg_isa,
&axg_pl301,
&axg_periphs,
&axg_spicc_0,
&axg_i2c,
&axg_rng0,
&axg_uart0,
&axg_mipi_dsi_phy,
&axg_spicc_1,
&axg_pcie_a,
&axg_pcie_b,
&axg_hiu_reg,
&axg_assist_misc,
&axg_emmc_b,
&axg_emmc_c,
&axg_dma,
&axg_spi,
&axg_audio,
&axg_eth_core,
&axg_uart1,
&axg_g2d,
&axg_usb0,
&axg_usb1,
&axg_reset,
&axg_usb_general,
&axg_ahb_arb0,
&axg_efuse,
&axg_boot_rom,
&axg_ahb_data_bus,
&axg_ahb_ctrl_bus,
&axg_usb1_to_ddr,
&axg_usb0_to_ddr,
&axg_mmc_pclk,
&axg_vpu_intr,
&axg_sec_ahb_ahb3_bridge,
&axg_gic,
&axg_ao_media_cpu,
&axg_ao_ahb_sram,
&axg_ao_ahb_bus,
&axg_ao_iface,
&axg_ao_i2c,
&axg_sd_emmc_b_clk0,
&axg_sd_emmc_c_clk0,
&axg_mpeg_clk_div,
&axg_sd_emmc_b_clk0_div,
&axg_sd_emmc_c_clk0_div,
&axg_mpeg_clk_sel,
&axg_sd_emmc_b_clk0_sel,
&axg_sd_emmc_c_clk0_sel,
&axg_mpll0,
&axg_mpll1,
&axg_mpll2,
&axg_mpll3,
&axg_mpll0_div,
&axg_mpll1_div,
&axg_mpll2_div,
&axg_mpll3_div,
&axg_fixed_pll,
&axg_sys_pll,
&axg_gp0_pll,
&axg_hifi_pll,
&axg_mpll_prediv,
&axg_fclk_div2,
&axg_fclk_div3,
&axg_fclk_div4,
&axg_fclk_div5,
&axg_fclk_div7,
};
static const struct of_device_id clkc_match_table[] = {
{ .compatible = "amlogic,axg-clkc" },
{}
};
static const struct regmap_config clkc_regmap_config = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
};
static int axg_clkc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct resource *res;
void __iomem *clk_base = NULL;
struct regmap *map;
int ret, i;
/* Get the hhi system controller node if available */
map = syscon_node_to_regmap(of_get_parent(dev->of_node));
if (IS_ERR(map)) {
dev_err(dev,
"failed to get HHI regmap - Trying obsolete regs\n");
/*
* FIXME: HHI registers should be accessed through
* the appropriate system controller. This is required because
* there is more than just clocks in this register space
*
* This fallback method is only provided temporarily until
* all the platform DTs are properly using the syscon node
*/
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -EINVAL;
clk_base = devm_ioremap(dev, res->start, resource_size(res));
if (!clk_base) {
dev_err(dev, "Unable to map clk base\n");
return -ENXIO;
}
map = devm_regmap_init_mmio(dev, clk_base,
&clkc_regmap_config);
if (IS_ERR(map))
return PTR_ERR(map);
}
/* Populate regmap for the regmap backed clocks */
for (i = 0; i < ARRAY_SIZE(axg_clk_regmaps); i++)
axg_clk_regmaps[i]->map = map;
for (i = 0; i < axg_hw_onecell_data.num; i++) {
/* array might be sparse */
if (!axg_hw_onecell_data.hws[i])
continue;
ret = devm_clk_hw_register(dev, axg_hw_onecell_data.hws[i]);
if (ret) {
dev_err(dev, "Clock registration failed\n");
return ret;
}
}
return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get,
&axg_hw_onecell_data);
}
static struct platform_driver axg_driver = {
.probe = axg_clkc_probe,
.driver = {
.name = "axg-clkc",
.of_match_table = clkc_match_table,
},
};
builtin_platform_driver(axg_driver);
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