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clk: meson: g12a: add cpu clocks 

Add the Amlogic G12A Family CPU Clock tree in read/only for now.

The CPU clock can either use the SYS_PLL for > 1GHz frequencies or
use a couple of div+mux from 1GHz/667MHz/24MHz source with 2 non-glitch
muxes.

Proper DVFS support will come in a second time.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
[narmstrong: fixed cpu clocks namings]
Link: https://lkml.kernel.org/r/20190304131129.7762-3-narmstrong@baylibre.com
This commit is contained in:
Neil Armstrong 2019-03-04 14:11:29 +01:00
parent 77a725ff7a
commit 370294e266
2 changed files with 371 additions and 1 deletions
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350
drivers/clk/meson/g12a.c
View File

@ -150,6 +150,318 @@ static struct clk_regmap g12a_sys_pll = {
},
};
static struct clk_regmap g12a_sys_pll_div16_en = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_SYS_CPU_CLK_CNTL1,
.bit_idx = 24,
},
.hw.init = &(struct clk_init_data) {
.name = "sys_pll_div16_en",
.ops = &clk_regmap_gate_ro_ops,
.parent_names = (const char *[]){ "sys_pll" },
.num_parents = 1,
/*
* This clock is used to debug the sys_pll range
* Linux should not change it at runtime
*/
},
};
static struct clk_fixed_factor g12a_sys_pll_div16 = {
.mult = 1,
.div = 16,
.hw.init = &(struct clk_init_data){
.name = "sys_pll_div16",
.ops = &clk_fixed_factor_ops,
.parent_names = (const char *[]){ "sys_pll_div16_en" },
.num_parents = 1,
},
};
/* Datasheet names this field as "premux0" */
static struct clk_regmap g12a_cpu_clk_premux0 = {
.data = &(struct clk_regmap_mux_data){
.offset = HHI_SYS_CPU_CLK_CNTL0,
.mask = 0x3,
.shift = 0,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk_dyn0_sel",
.ops = &clk_regmap_mux_ro_ops,
.parent_names = (const char *[]){ IN_PREFIX "xtal",
"fclk_div2",
"fclk_div3" },
.num_parents = 3,
},
};
/* Datasheet names this field as "mux0_divn_tcnt" */
static struct clk_regmap g12a_cpu_clk_mux0_div = {
.data = &(struct clk_regmap_div_data){
.offset = HHI_SYS_CPU_CLK_CNTL0,
.shift = 4,
.width = 6,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk_dyn0_div",
.ops = &clk_regmap_divider_ro_ops,
.parent_names = (const char *[]){ "cpu_clk_dyn0_sel" },
.num_parents = 1,
},
};
/* Datasheet names this field as "postmux0" */
static struct clk_regmap g12a_cpu_clk_postmux0 = {
.data = &(struct clk_regmap_mux_data){
.offset = HHI_SYS_CPU_CLK_CNTL0,
.mask = 0x1,
.shift = 2,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk_dyn0",
.ops = &clk_regmap_mux_ro_ops,
.parent_names = (const char *[]){ "cpu_clk_dyn0_sel",
"cpu_clk_dyn0_div" },
.num_parents = 2,
},
};
/* Datasheet names this field as "premux1" */
static struct clk_regmap g12a_cpu_clk_premux1 = {
.data = &(struct clk_regmap_mux_data){
.offset = HHI_SYS_CPU_CLK_CNTL0,
.mask = 0x3,
.shift = 16,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk_dyn1_sel",
.ops = &clk_regmap_mux_ro_ops,
.parent_names = (const char *[]){ IN_PREFIX "xtal",
"fclk_div2",
"fclk_div3" },
.num_parents = 3,
},
};
/* Datasheet names this field as "Mux1_divn_tcnt" */
static struct clk_regmap g12a_cpu_clk_mux1_div = {
.data = &(struct clk_regmap_div_data){
.offset = HHI_SYS_CPU_CLK_CNTL0,
.shift = 20,
.width = 6,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk_dyn1_div",
.ops = &clk_regmap_divider_ro_ops,
.parent_names = (const char *[]){ "cpu_clk_dyn1_sel" },
.num_parents = 1,
},
};
/* Datasheet names this field as "postmux1" */
static struct clk_regmap g12a_cpu_clk_postmux1 = {
.data = &(struct clk_regmap_mux_data){
.offset = HHI_SYS_CPU_CLK_CNTL0,
.mask = 0x1,
.shift = 18,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk_dyn1",
.ops = &clk_regmap_mux_ro_ops,
.parent_names = (const char *[]){ "cpu_clk_dyn1_sel",
"cpu_clk_dyn1_div" },
.num_parents = 2,
},
};
/* Datasheet names this field as "Final_dyn_mux_sel" */
static struct clk_regmap g12a_cpu_clk_dyn = {
.data = &(struct clk_regmap_mux_data){
.offset = HHI_SYS_CPU_CLK_CNTL0,
.mask = 0x1,
.shift = 10,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk_dyn",
.ops = &clk_regmap_mux_ro_ops,
.parent_names = (const char *[]){ "cpu_clk_dyn0",
"cpu_clk_dyn1" },
.num_parents = 2,
},
};
/* Datasheet names this field as "Final_mux_sel" */
static struct clk_regmap g12a_cpu_clk = {
.data = &(struct clk_regmap_mux_data){
.offset = HHI_SYS_CPU_CLK_CNTL0,
.mask = 0x1,
.shift = 11,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk",
.ops = &clk_regmap_mux_ro_ops,
.parent_names = (const char *[]){ "cpu_clk_dyn",
"sys_pll" },
.num_parents = 2,
},
};
static struct clk_regmap g12a_cpu_clk_div16_en = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_SYS_CPU_CLK_CNTL1,
.bit_idx = 1,
},
.hw.init = &(struct clk_init_data) {
.name = "cpu_clk_div16_en",
.ops = &clk_regmap_gate_ro_ops,
.parent_names = (const char *[]){ "cpu_clk" },
.num_parents = 1,
/*
* This clock is used to debug the cpu_clk range
* Linux should not change it at runtime
*/
},
};
static struct clk_fixed_factor g12a_cpu_clk_div16 = {
.mult = 1,
.div = 16,
.hw.init = &(struct clk_init_data){
.name = "cpu_clk_div16",
.ops = &clk_fixed_factor_ops,
.parent_names = (const char *[]){ "cpu_clk_div16_en" },
.num_parents = 1,
},
};
static struct clk_regmap g12a_cpu_clk_apb_div = {
.data = &(struct clk_regmap_div_data){
.offset = HHI_SYS_CPU_CLK_CNTL1,
.shift = 3,
.width = 3,
.flags = CLK_DIVIDER_POWER_OF_TWO,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk_apb_div",
.ops = &clk_regmap_divider_ro_ops,
.parent_names = (const char *[]){ "cpu_clk" },
.num_parents = 1,
},
};
static struct clk_regmap g12a_cpu_clk_apb = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_SYS_CPU_CLK_CNTL1,
.bit_idx = 1,
},
.hw.init = &(struct clk_init_data) {
.name = "cpu_clk_apb",
.ops = &clk_regmap_gate_ro_ops,
.parent_names = (const char *[]){ "cpu_clk_apb_div" },
.num_parents = 1,
/*
* This clock is set by the ROM monitor code,
* Linux should not change it at runtime
*/
},
};
static struct clk_regmap g12a_cpu_clk_atb_div = {
.data = &(struct clk_regmap_div_data){
.offset = HHI_SYS_CPU_CLK_CNTL1,
.shift = 6,
.width = 3,
.flags = CLK_DIVIDER_POWER_OF_TWO,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk_atb_div",
.ops = &clk_regmap_divider_ro_ops,
.parent_names = (const char *[]){ "cpu_clk" },
.num_parents = 1,
},
};
static struct clk_regmap g12a_cpu_clk_atb = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_SYS_CPU_CLK_CNTL1,
.bit_idx = 17,
},
.hw.init = &(struct clk_init_data) {
.name = "cpu_clk_atb",
.ops = &clk_regmap_gate_ro_ops,
.parent_names = (const char *[]){ "cpu_clk_atb_div" },
.num_parents = 1,
/*
* This clock is set by the ROM monitor code,
* Linux should not change it at runtime
*/
},
};
static struct clk_regmap g12a_cpu_clk_axi_div = {
.data = &(struct clk_regmap_div_data){
.offset = HHI_SYS_CPU_CLK_CNTL1,
.shift = 9,
.width = 3,
.flags = CLK_DIVIDER_POWER_OF_TWO,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk_axi_div",
.ops = &clk_regmap_divider_ro_ops,
.parent_names = (const char *[]){ "cpu_clk" },
.num_parents = 1,
},
};
static struct clk_regmap g12a_cpu_clk_axi = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_SYS_CPU_CLK_CNTL1,
.bit_idx = 18,
},
.hw.init = &(struct clk_init_data) {
.name = "cpu_clk_axi",
.ops = &clk_regmap_gate_ro_ops,
.parent_names = (const char *[]){ "cpu_clk_axi_div" },
.num_parents = 1,
/*
* This clock is set by the ROM monitor code,
* Linux should not change it at runtime
*/
},
};
static struct clk_regmap g12a_cpu_clk_trace_div = {
.data = &(struct clk_regmap_div_data){
.offset = HHI_SYS_CPU_CLK_CNTL1,
.shift = 20,
.width = 3,
.flags = CLK_DIVIDER_POWER_OF_TWO,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk_trace_div",
.ops = &clk_regmap_divider_ro_ops,
.parent_names = (const char *[]){ "cpu_clk" },
.num_parents = 1,
},
};
static struct clk_regmap g12a_cpu_clk_trace = {
.data = &(struct clk_regmap_gate_data){
.offset = HHI_SYS_CPU_CLK_CNTL1,
.bit_idx = 23,
},
.hw.init = &(struct clk_init_data) {
.name = "cpu_clk_trace",
.ops = &clk_regmap_gate_ro_ops,
.parent_names = (const char *[]){ "cpu_clk_trace_div" },
.num_parents = 1,
/*
* This clock is set by the ROM monitor code,
* Linux should not change it at runtime
*/
},
};
static const struct pll_mult_range g12a_gp0_pll_mult_range = {
.min = 55,
.max = 255,
@ -2167,6 +2479,26 @@ static struct clk_hw_onecell_data g12a_hw_onecell_data = {
[CLKID_MALI] = &g12a_mali.hw,
[CLKID_MPLL_5OM_DIV] = &g12a_mpll_50m_div.hw,
[CLKID_MPLL_5OM] = &g12a_mpll_50m.hw,
[CLKID_SYS_PLL_DIV16_EN] = &g12a_sys_pll_div16_en.hw,
[CLKID_SYS_PLL_DIV16] = &g12a_sys_pll_div16.hw,
[CLKID_CPU_CLK_DYN0_SEL] = &g12a_cpu_clk_premux0.hw,
[CLKID_CPU_CLK_DYN0_DIV] = &g12a_cpu_clk_mux0_div.hw,
[CLKID_CPU_CLK_DYN0] = &g12a_cpu_clk_postmux0.hw,
[CLKID_CPU_CLK_DYN1_SEL] = &g12a_cpu_clk_premux1.hw,
[CLKID_CPU_CLK_DYN1_DIV] = &g12a_cpu_clk_mux1_div.hw,
[CLKID_CPU_CLK_DYN1] = &g12a_cpu_clk_postmux1.hw,
[CLKID_CPU_CLK_DYN] = &g12a_cpu_clk_dyn.hw,
[CLKID_CPU_CLK] = &g12a_cpu_clk.hw,
[CLKID_CPU_CLK_DIV16_EN] = &g12a_cpu_clk_div16_en.hw,
[CLKID_CPU_CLK_DIV16] = &g12a_cpu_clk_div16.hw,
[CLKID_CPU_CLK_APB_DIV] = &g12a_cpu_clk_apb_div.hw,
[CLKID_CPU_CLK_APB] = &g12a_cpu_clk_apb.hw,
[CLKID_CPU_CLK_ATB_DIV] = &g12a_cpu_clk_atb_div.hw,
[CLKID_CPU_CLK_ATB] = &g12a_cpu_clk_atb.hw,
[CLKID_CPU_CLK_AXI_DIV] = &g12a_cpu_clk_axi_div.hw,
[CLKID_CPU_CLK_AXI] = &g12a_cpu_clk_axi.hw,
[CLKID_CPU_CLK_TRACE_DIV] = &g12a_cpu_clk_trace_div.hw,
[CLKID_CPU_CLK_TRACE] = &g12a_cpu_clk_trace.hw,
[NR_CLKS] = NULL,
},
.num = NR_CLKS,
@ -2335,6 +2667,24 @@ static struct clk_regmap *const g12a_clk_regmaps[] = {
&g12a_mali_1,
&g12a_mali,
&g12a_mpll_50m,
&g12a_sys_pll_div16_en,
&g12a_cpu_clk_premux0,
&g12a_cpu_clk_mux0_div,
&g12a_cpu_clk_postmux0,
&g12a_cpu_clk_premux1,
&g12a_cpu_clk_mux1_div,
&g12a_cpu_clk_postmux1,
&g12a_cpu_clk_dyn,
&g12a_cpu_clk,
&g12a_cpu_clk_div16_en,
&g12a_cpu_clk_apb_div,
&g12a_cpu_clk_apb,
&g12a_cpu_clk_atb_div,
&g12a_cpu_clk_atb,
&g12a_cpu_clk_axi_div,
&g12a_cpu_clk_axi,
&g12a_cpu_clk_trace_div,
&g12a_cpu_clk_trace,
};
static const struct meson_eeclkc_data g12a_clkc_data = {

22
drivers/clk/meson/g12a.h
View File

@ -50,6 +50,7 @@
#define HHI_GCLK_MPEG2 0x148
#define HHI_GCLK_OTHER 0x150
#define HHI_GCLK_OTHER2 0x154
#define HHI_SYS_CPU_CLK_CNTL1 0x15c
#define HHI_VID_CLK_DIV 0x164
#define HHI_MPEG_CLK_CNTL 0x174
#define HHI_AUD_CLK_CNTL 0x178
@ -166,8 +167,27 @@
#define CLKID_MALI_0_DIV 170
#define CLKID_MALI_1_DIV 173
#define CLKID_MPLL_5OM_DIV 176
#define CLKID_SYS_PLL_DIV16_EN 178
#define CLKID_SYS_PLL_DIV16 179
#define CLKID_CPU_CLK_DYN0_SEL 180
#define CLKID_CPU_CLK_DYN0_DIV 181
#define CLKID_CPU_CLK_DYN0 182
#define CLKID_CPU_CLK_DYN1_SEL 183
#define CLKID_CPU_CLK_DYN1_DIV 184
#define CLKID_CPU_CLK_DYN1 185
#define CLKID_CPU_CLK_DYN 186
#define CLKID_CPU_CLK_DIV16_EN 188
#define CLKID_CPU_CLK_DIV16 189
#define CLKID_CPU_CLK_APB_DIV 190
#define CLKID_CPU_CLK_APB 191
#define CLKID_CPU_CLK_ATB_DIV 192
#define CLKID_CPU_CLK_ATB 193
#define CLKID_CPU_CLK_AXI_DIV 194
#define CLKID_CPU_CLK_AXI 195
#define CLKID_CPU_CLK_TRACE_DIV 196
#define CLKID_CPU_CLK_TRACE 197
#define NR_CLKS 178
#define NR_CLKS 198
/* include the CLKIDs that have been made part of the DT binding */
#include <dt-bindings/clock/g12a-clkc.h>