Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 343 insertions, 0 deletions

diff --git a/drivers/clk/meson/axg-aoclk.c b/drivers/clk/meson/axg-aoclk.c
new file mode 100644
index 0000000000..d80ab4728f
--- /dev/null
+++ b/drivers/clk/meson/axg-aoclk.c
@@ -0,0 +1,343 @@
+// 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) 2018 Amlogic, inc.
+ * Author: Qiufang Dai <qiufang.dai@amlogic.com>
+ */
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+#include <linux/reset-controller.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include "meson-aoclk.h"
+
+#include "clk-regmap.h"
+#include "clk-dualdiv.h"
+
+#include <dt-bindings/clock/axg-aoclkc.h>
+#include <dt-bindings/reset/axg-aoclkc.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) {			\
+		.offset = (AO_RTI_GEN_CNTL_REG0),			\
+		.bit_idx = (_bit),					\
+	},								\
+	.hw.init = &(struct clk_init_data) {				\
+		.name =  "axg_ao_" #_name,				\
+		.ops = &clk_regmap_gate_ops,				\
+		.parent_data = &(const struct clk_parent_data) {	\
+			.fw_name = "mpeg-clk",				\
+		},							\
+		.num_parents = 1,					\
+		.flags = CLK_IGNORE_UNUSED,				\
+	},								\
+}
+
+AXG_AO_GATE(remote, 0);
+AXG_AO_GATE(i2c_master, 1);
+AXG_AO_GATE(i2c_slave, 2);
+AXG_AO_GATE(uart1, 3);
+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_data = &(const struct clk_parent_data) {
+			.fw_name = "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_hws = (const struct clk_hw *[]) {
+			&axg_aoclk_cts_oscin.hw
+		},
+		.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_hws = (const struct clk_hw *[]) {
+			&axg_aoclk_32k_pre.hw
+		},
+		.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_hws = (const struct clk_hw *[]) {
+			&axg_aoclk_32k_div.hw,
+			&axg_aoclk_32k_pre.hw,
+		},
+		.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_hws = (const struct clk_hw *[]) {
+			&axg_aoclk_32k_sel.hw
+		},
+		.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_data = (const struct clk_parent_data []) {
+			{ .hw = &axg_aoclk_32k.hw },
+			{ .fw_name = "ext_32k-0", },
+		},
+		.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_data = (const struct clk_parent_data []) {
+			{ .fw_name = "mpeg-clk", },
+			{ .hw = &axg_aoclk_cts_rtc_oscin.hw },
+		},
+		.num_parents = 2,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+static struct clk_regmap axg_aoclk_saradc_mux = {
+	.data = &(struct clk_regmap_mux_data) {
+		.offset = AO_SAR_CLK,
+		.mask = 0x3,
+		.shift = 9,
+	},
+	.hw.init = &(struct clk_init_data){
+		.name = "axg_ao_saradc_mux",
+		.ops = &clk_regmap_mux_ops,
+		.parent_data = (const struct clk_parent_data []) {
+			{ .fw_name = "xtal", },
+			{ .hw = &axg_aoclk_clk81.hw },
+		},
+		.num_parents = 2,
+	},
+};
+
+static struct clk_regmap axg_aoclk_saradc_div = {
+	.data = &(struct clk_regmap_div_data) {
+		.offset = AO_SAR_CLK,
+		.shift = 0,
+		.width = 8,
+	},
+	.hw.init = &(struct clk_init_data){
+		.name = "axg_ao_saradc_div",
+		.ops = &clk_regmap_divider_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&axg_aoclk_saradc_mux.hw
+		},
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+static struct clk_regmap axg_aoclk_saradc_gate = {
+	.data = &(struct clk_regmap_gate_data) {
+		.offset = AO_SAR_CLK,
+		.bit_idx = 8,
+	},
+	.hw.init = &(struct clk_init_data){
+		.name = "axg_ao_saradc_gate",
+		.ops = &clk_regmap_gate_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&axg_aoclk_saradc_div.hw
+		},
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+static const unsigned int axg_aoclk_reset[] = {
+	[RESET_AO_REMOTE]	= 16,
+	[RESET_AO_I2C_MASTER]	= 18,
+	[RESET_AO_I2C_SLAVE]	= 19,
+	[RESET_AO_UART1]	= 17,
+	[RESET_AO_UART2]	= 22,
+	[RESET_AO_IR_BLASTER]	= 23,
+};
+
+static struct clk_regmap *axg_aoclk_regmap[] = {
+	&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 struct clk_hw *axg_aoclk_hw_clks[] = {
+	[CLKID_AO_REMOTE]	= &axg_aoclk_remote.hw,
+	[CLKID_AO_I2C_MASTER]	= &axg_aoclk_i2c_master.hw,
+	[CLKID_AO_I2C_SLAVE]	= &axg_aoclk_i2c_slave.hw,
+	[CLKID_AO_UART1]	= &axg_aoclk_uart1.hw,
+	[CLKID_AO_UART2]	= &axg_aoclk_uart2.hw,
+	[CLKID_AO_IR_BLASTER]	= &axg_aoclk_ir_blaster.hw,
+	[CLKID_AO_SAR_ADC]	= &axg_aoclk_saradc.hw,
+	[CLKID_AO_CLK81]	= &axg_aoclk_clk81.hw,
+	[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,
+};
+
+static const struct meson_aoclk_data axg_aoclkc_data = {
+	.reset_reg	= AO_RTI_GEN_CNTL_REG0,
+	.num_reset	= ARRAY_SIZE(axg_aoclk_reset),
+	.reset		= axg_aoclk_reset,
+	.num_clks	= ARRAY_SIZE(axg_aoclk_regmap),
+	.clks		= axg_aoclk_regmap,
+	.hw_clks	= {
+		.hws	= axg_aoclk_hw_clks,
+		.num	= ARRAY_SIZE(axg_aoclk_hw_clks),
+	},
+};
+
+static const struct of_device_id axg_aoclkc_match_table[] = {
+	{
+		.compatible	= "amlogic,meson-axg-aoclkc",
+		.data		= &axg_aoclkc_data,
+	},
+	{ }
+};
+MODULE_DEVICE_TABLE(of, axg_aoclkc_match_table);
+
+static struct platform_driver axg_aoclkc_driver = {
+	.probe		= meson_aoclkc_probe,
+	.driver		= {
+		.name	= "axg-aoclkc",
+		.of_match_table = axg_aoclkc_match_table,
+	},
+};
+
+module_platform_driver(axg_aoclkc_driver);
+MODULE_LICENSE("GPL v2");