[PATCH v2 5/5] clk: meson: axg-ao: add 32k generation subtree
From: Jerome Brunet
Date: Fri Dec 21 2018 - 11:03:04 EST
Add the clock subtree generating the 32k clock in amlogic axg ao block.
Signed-off-by: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
---
drivers/clk/meson/axg-aoclk.c | 175 +++++++++++++++++++++++++++++++---
drivers/clk/meson/axg-aoclk.h | 13 +--
2 files changed, 163 insertions(+), 25 deletions(-)
diff --git a/drivers/clk/meson/axg-aoclk.c b/drivers/clk/meson/axg-aoclk.c
index 29e088542387..5f518be144ce 100644
--- a/drivers/clk/meson/axg-aoclk.c
+++ b/drivers/clk/meson/axg-aoclk.c
@@ -12,10 +12,23 @@
#include <linux/platform_device.h>
#include <linux/reset-controller.h>
#include <linux/mfd/syscon.h>
-#include "clk-regmap.h"
+#include "clkc.h"
#include "meson-aoclk.h"
#include "axg-aoclk.h"
+/*
+ * AO Configuration Clock registers offsets
+ * Register offsets from the data sheet must be multiplied by 4.
+ */
+#define AO_RTI_PWR_CNTL_REG1 0x0C
+#define AO_RTI_PWR_CNTL_REG0 0x10
+#define AO_RTI_GEN_CNTL_REG0 0x40
+#define AO_OSCIN_CNTL 0x58
+#define AO_CRT_CLK_CNTL1 0x68
+#define AO_SAR_CLK 0x90
+#define AO_RTC_ALT_CLK_CNTL0 0x94
+#define AO_RTC_ALT_CLK_CNTL1 0x98
+
#define AXG_AO_GATE(_name, _bit) \
static struct clk_regmap axg_aoclk_##_name = { \
.data = &(struct clk_regmap_gate_data) { \
@@ -39,17 +52,141 @@ AXG_AO_GATE(uart2, 5);
AXG_AO_GATE(ir_blaster, 6);
AXG_AO_GATE(saradc, 7);
+static struct clk_regmap axg_aoclk_cts_oscin = {
+ .data = &(struct clk_regmap_gate_data){
+ .offset = AO_RTI_PWR_CNTL_REG0,
+ .bit_idx = 14,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "cts_oscin",
+ .ops = &clk_regmap_gate_ro_ops,
+ .parent_names = (const char *[]){ "xtal" },
+ .num_parents = 1,
+ },
+};
+
+static struct clk_regmap axg_aoclk_32k_pre = {
+ .data = &(struct clk_regmap_gate_data){
+ .offset = AO_RTC_ALT_CLK_CNTL0,
+ .bit_idx = 31,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "axg_ao_32k_pre",
+ .ops = &clk_regmap_gate_ops,
+ .parent_names = (const char *[]){ "cts_oscin" },
+ .num_parents = 1,
+ },
+};
+
+static const struct meson_clk_dualdiv_param axg_32k_div_table[] = {
+ {
+ .dual = 1,
+ .n1 = 733,
+ .m1 = 8,
+ .n2 = 732,
+ .m2 = 11,
+ }, {}
+};
+
+static struct clk_regmap axg_aoclk_32k_div = {
+ .data = &(struct meson_clk_dualdiv_data){
+ .n1 = {
+ .reg_off = AO_RTC_ALT_CLK_CNTL0,
+ .shift = 0,
+ .width = 12,
+ },
+ .n2 = {
+ .reg_off = AO_RTC_ALT_CLK_CNTL0,
+ .shift = 12,
+ .width = 12,
+ },
+ .m1 = {
+ .reg_off = AO_RTC_ALT_CLK_CNTL1,
+ .shift = 0,
+ .width = 12,
+ },
+ .m2 = {
+ .reg_off = AO_RTC_ALT_CLK_CNTL1,
+ .shift = 12,
+ .width = 12,
+ },
+ .dual = {
+ .reg_off = AO_RTC_ALT_CLK_CNTL0,
+ .shift = 28,
+ .width = 1,
+ },
+ .table = axg_32k_div_table,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "axg_ao_32k_div",
+ .ops = &meson_clk_dualdiv_ops,
+ .parent_names = (const char *[]){ "axg_ao_32k_pre" },
+ .num_parents = 1,
+ },
+};
+
+static struct clk_regmap axg_aoclk_32k_sel = {
+ .data = &(struct clk_regmap_mux_data) {
+ .offset = AO_RTC_ALT_CLK_CNTL1,
+ .mask = 0x1,
+ .shift = 24,
+ .flags = CLK_MUX_ROUND_CLOSEST,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "axg_ao_32k_sel",
+ .ops = &clk_regmap_mux_ops,
+ .parent_names = (const char *[]){ "axg_ao_32k_div",
+ "axg_ao_32k_pre" },
+ .num_parents = 2,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_regmap axg_aoclk_32k = {
+ .data = &(struct clk_regmap_gate_data){
+ .offset = AO_RTC_ALT_CLK_CNTL0,
+ .bit_idx = 30,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "axg_ao_32k",
+ .ops = &clk_regmap_gate_ops,
+ .parent_names = (const char *[]){ "axg_ao_32k_sel" },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_regmap axg_aoclk_cts_rtc_oscin = {
+ .data = &(struct clk_regmap_mux_data) {
+ .offset = AO_RTI_PWR_CNTL_REG0,
+ .mask = 0x1,
+ .shift = 10,
+ .flags = CLK_MUX_ROUND_CLOSEST,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "axg_ao_cts_rtc_oscin",
+ .ops = &clk_regmap_mux_ops,
+ .parent_names = (const char *[]){ "axg_ao_32k",
+ "axg_ext_32k" },
+ .num_parents = 2,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
static struct clk_regmap axg_aoclk_clk81 = {
.data = &(struct clk_regmap_mux_data) {
.offset = AO_RTI_PWR_CNTL_REG0,
.mask = 0x1,
.shift = 8,
+ .flags = CLK_MUX_ROUND_CLOSEST,
},
.hw.init = &(struct clk_init_data){
.name = "axg_ao_clk81",
.ops = &clk_regmap_mux_ro_ops,
- .parent_names = (const char *[]){ "clk81", "ao_alt_xtal"},
+ .parent_names = (const char *[]){ "clk81",
+ "axg_ao_cts_rtc_oscin"},
.num_parents = 2,
+ .flags = CLK_SET_RATE_PARENT,
},
};
@@ -106,17 +243,23 @@ static const unsigned int axg_aoclk_reset[] = {
};
static struct clk_regmap *axg_aoclk_regmap[] = {
- [CLKID_AO_REMOTE] = &axg_aoclk_remote,
- [CLKID_AO_I2C_MASTER] = &axg_aoclk_i2c_master,
- [CLKID_AO_I2C_SLAVE] = &axg_aoclk_i2c_slave,
- [CLKID_AO_UART1] = &axg_aoclk_uart1,
- [CLKID_AO_UART2] = &axg_aoclk_uart2,
- [CLKID_AO_IR_BLASTER] = &axg_aoclk_ir_blaster,
- [CLKID_AO_SAR_ADC] = &axg_aoclk_saradc,
- [CLKID_AO_CLK81] = &axg_aoclk_clk81,
- [CLKID_AO_SAR_ADC_SEL] = &axg_aoclk_saradc_mux,
- [CLKID_AO_SAR_ADC_DIV] = &axg_aoclk_saradc_div,
- [CLKID_AO_SAR_ADC_CLK] = &axg_aoclk_saradc_gate,
+ &axg_aoclk_remote,
+ &axg_aoclk_i2c_master,
+ &axg_aoclk_i2c_slave,
+ &axg_aoclk_uart1,
+ &axg_aoclk_uart2,
+ &axg_aoclk_ir_blaster,
+ &axg_aoclk_saradc,
+ &axg_aoclk_cts_oscin,
+ &axg_aoclk_32k_pre,
+ &axg_aoclk_32k_div,
+ &axg_aoclk_32k_sel,
+ &axg_aoclk_32k,
+ &axg_aoclk_cts_rtc_oscin,
+ &axg_aoclk_clk81,
+ &axg_aoclk_saradc_mux,
+ &axg_aoclk_saradc_div,
+ &axg_aoclk_saradc_gate,
};
static const struct clk_hw_onecell_data axg_aoclk_onecell_data = {
@@ -132,6 +275,12 @@ static const struct clk_hw_onecell_data axg_aoclk_onecell_data = {
[CLKID_AO_SAR_ADC_SEL] = &axg_aoclk_saradc_mux.hw,
[CLKID_AO_SAR_ADC_DIV] = &axg_aoclk_saradc_div.hw,
[CLKID_AO_SAR_ADC_CLK] = &axg_aoclk_saradc_gate.hw,
+ [CLKID_AO_CTS_OSCIN] = &axg_aoclk_cts_oscin.hw,
+ [CLKID_AO_32K_PRE] = &axg_aoclk_32k_pre.hw,
+ [CLKID_AO_32K_DIV] = &axg_aoclk_32k_div.hw,
+ [CLKID_AO_32K_SEL] = &axg_aoclk_32k_sel.hw,
+ [CLKID_AO_32K] = &axg_aoclk_32k.hw,
+ [CLKID_AO_CTS_RTC_OSCIN] = &axg_aoclk_cts_rtc_oscin.hw,
},
.num = NR_CLKS,
};
diff --git a/drivers/clk/meson/axg-aoclk.h b/drivers/clk/meson/axg-aoclk.h
index 91384d8dd844..3cc27e85170f 100644
--- a/drivers/clk/meson/axg-aoclk.h
+++ b/drivers/clk/meson/axg-aoclk.h
@@ -10,18 +10,7 @@
#ifndef __AXG_AOCLKC_H
#define __AXG_AOCLKC_H
-#define NR_CLKS 11
-/* AO Configuration Clock registers offsets
- * Register offsets from the data sheet must be multiplied by 4.
- */
-#define AO_RTI_PWR_CNTL_REG1 0x0C
-#define AO_RTI_PWR_CNTL_REG0 0x10
-#define AO_RTI_GEN_CNTL_REG0 0x40
-#define AO_OSCIN_CNTL 0x58
-#define AO_CRT_CLK_CNTL1 0x68
-#define AO_SAR_CLK 0x90
-#define AO_RTC_ALT_CLK_CNTL0 0x94
-#define AO_RTC_ALT_CLK_CNTL1 0x98
+#define NR_CLKS 17
#include <dt-bindings/clock/axg-aoclkc.h>
#include <dt-bindings/reset/axg-aoclkc.h>
--
2.19.2