// SPDX-License-Identifier: GPL-2.0+ /* * Amlogic Meson-AXG Clock Controller Driver * * Copyright (c) 2016 Baylibre SAS. * Author: Michael Turquette * * Copyright (c) 2018 Amlogic, inc. * Author: Qiufang Dai */ #include #include #include #include #include "clkc.h" #include "meson-aoclk.h" #include "axg-aoclk.h" #define IN_PREFIX "ao-in-" /* * 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_names = (const char *[]){ IN_PREFIX "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_names = (const char *[]){ IN_PREFIX "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", IN_PREFIX "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_names = (const char *[]){ IN_PREFIX "mpeg-clk", "axg_ao_cts_rtc_oscin"}, .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_names = (const char *[]){ IN_PREFIX "xtal", "axg_ao_clk81" }, .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_names = (const char *[]){ "axg_ao_saradc_mux" }, .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_names = (const char *[]){ "axg_ao_saradc_div" }, .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 const struct clk_hw_onecell_data axg_aoclk_onecell_data = { .hws = { [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, }, .num = NR_CLKS, }; static const struct meson_aoclk_input axg_aoclk_inputs[] = { { .name = "xtal", .required = true }, { .name = "mpeg-clk", .required = true }, { .name = "ext-32k-0", .required = false }, }; 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_data = &axg_aoclk_onecell_data, .inputs = axg_aoclk_inputs, .num_inputs = ARRAY_SIZE(axg_aoclk_inputs), .input_prefix = IN_PREFIX, }; static const struct of_device_id axg_aoclkc_match_table[] = { { .compatible = "amlogic,meson-axg-aoclkc", .data = &axg_aoclkc_data, }, { } }; static struct platform_driver axg_aoclkc_driver = { .probe = meson_aoclkc_probe, .driver = { .name = "axg-aoclkc", .of_match_table = axg_aoclkc_match_table, }, }; builtin_platform_driver(axg_aoclkc_driver);