1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2021 MediaTek Inc. 4 * Author: Sam Shih <sam.shih@mediatek.com> 5 * Author: Wenzhen Yu <wenzhen.yu@mediatek.com> 6 */ 7 8 #include <linux/clk-provider.h> 9 #include <linux/of.h> 10 #include <linux/of_address.h> 11 #include <linux/of_device.h> 12 #include <linux/platform_device.h> 13 #include "clk-mtk.h" 14 #include "clk-gate.h" 15 #include "clk-mux.h" 16 17 #include <dt-bindings/clock/mt7986-clk.h> 18 #include <linux/clk.h> 19 20 static DEFINE_SPINLOCK(mt7986_clk_lock); 21 22 static const struct mtk_fixed_factor infra_divs[] = { 23 FACTOR(CLK_INFRA_SYSAXI_D2, "infra_sysaxi_d2", "sysaxi_sel", 1, 2), 24 }; 25 26 static const char *const infra_uart_parent[] __initconst = { "csw_f26m_sel", 27 "uart_sel" }; 28 29 static const char *const infra_spi_parents[] __initconst = { "i2c_sel", 30 "spi_sel" }; 31 32 static const char *const infra_pwm_bsel_parents[] __initconst = { 33 "top_rtc_32p7k", "csw_f26m_sel", "infra_sysaxi_d2", "pwm_sel" 34 }; 35 36 static const char *const infra_pcie_parents[] __initconst = { 37 "top_rtc_32p7k", "csw_f26m_sel", "top_xtal", "pextp_tl_ck_sel" 38 }; 39 40 static const struct mtk_mux infra_muxes[] = { 41 /* MODULE_CLK_SEL_0 */ 42 MUX_GATE_CLR_SET_UPD(CLK_INFRA_UART0_SEL, "infra_uart0_sel", 43 infra_uart_parent, 0x0018, 0x0010, 0x0014, 0, 1, 44 -1, -1, -1), 45 MUX_GATE_CLR_SET_UPD(CLK_INFRA_UART1_SEL, "infra_uart1_sel", 46 infra_uart_parent, 0x0018, 0x0010, 0x0014, 1, 1, 47 -1, -1, -1), 48 MUX_GATE_CLR_SET_UPD(CLK_INFRA_UART2_SEL, "infra_uart2_sel", 49 infra_uart_parent, 0x0018, 0x0010, 0x0014, 2, 1, 50 -1, -1, -1), 51 MUX_GATE_CLR_SET_UPD(CLK_INFRA_SPI0_SEL, "infra_spi0_sel", 52 infra_spi_parents, 0x0018, 0x0010, 0x0014, 4, 1, 53 -1, -1, -1), 54 MUX_GATE_CLR_SET_UPD(CLK_INFRA_SPI1_SEL, "infra_spi1_sel", 55 infra_spi_parents, 0x0018, 0x0010, 0x0014, 5, 1, 56 -1, -1, -1), 57 MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM1_SEL, "infra_pwm1_sel", 58 infra_pwm_bsel_parents, 0x0018, 0x0010, 0x0014, 9, 59 2, -1, -1, -1), 60 MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM2_SEL, "infra_pwm2_sel", 61 infra_pwm_bsel_parents, 0x0018, 0x0010, 0x0014, 11, 62 2, -1, -1, -1), 63 MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM_BSEL, "infra_pwm_bsel", 64 infra_pwm_bsel_parents, 0x0018, 0x0010, 0x0014, 13, 65 2, -1, -1, -1), 66 /* MODULE_CLK_SEL_1 */ 67 MUX_GATE_CLR_SET_UPD(CLK_INFRA_PCIE_SEL, "infra_pcie_sel", 68 infra_pcie_parents, 0x0028, 0x0020, 0x0024, 0, 2, 69 -1, -1, -1), 70 }; 71 72 static const struct mtk_gate_regs infra0_cg_regs = { 73 .set_ofs = 0x40, 74 .clr_ofs = 0x44, 75 .sta_ofs = 0x48, 76 }; 77 78 static const struct mtk_gate_regs infra1_cg_regs = { 79 .set_ofs = 0x50, 80 .clr_ofs = 0x54, 81 .sta_ofs = 0x58, 82 }; 83 84 static const struct mtk_gate_regs infra2_cg_regs = { 85 .set_ofs = 0x60, 86 .clr_ofs = 0x64, 87 .sta_ofs = 0x68, 88 }; 89 90 #define GATE_INFRA0(_id, _name, _parent, _shift) \ 91 GATE_MTK(_id, _name, _parent, &infra0_cg_regs, _shift, &mtk_clk_gate_ops_setclr) 92 93 #define GATE_INFRA1(_id, _name, _parent, _shift) \ 94 GATE_MTK(_id, _name, _parent, &infra1_cg_regs, _shift, &mtk_clk_gate_ops_setclr) 95 96 #define GATE_INFRA2(_id, _name, _parent, _shift) \ 97 GATE_MTK(_id, _name, _parent, &infra2_cg_regs, _shift, &mtk_clk_gate_ops_setclr) 98 99 static const struct mtk_gate infra_clks[] = { 100 /* INFRA0 */ 101 GATE_INFRA0(CLK_INFRA_GPT_STA, "infra_gpt_sta", "infra_sysaxi_d2", 0), 102 GATE_INFRA0(CLK_INFRA_PWM_HCK, "infra_pwm_hck", "infra_sysaxi_d2", 1), 103 GATE_INFRA0(CLK_INFRA_PWM_STA, "infra_pwm_sta", "infra_pwm_bsel", 2), 104 GATE_INFRA0(CLK_INFRA_PWM1_CK, "infra_pwm1", "infra_pwm1_sel", 3), 105 GATE_INFRA0(CLK_INFRA_PWM2_CK, "infra_pwm2", "infra_pwm2_sel", 4), 106 GATE_INFRA0(CLK_INFRA_CQ_DMA_CK, "infra_cq_dma", "sysaxi_sel", 6), 107 GATE_INFRA0(CLK_INFRA_EIP97_CK, "infra_eip97", "eip_b_sel", 7), 108 GATE_INFRA0(CLK_INFRA_AUD_BUS_CK, "infra_aud_bus", "sysaxi_sel", 8), 109 GATE_INFRA0(CLK_INFRA_AUD_26M_CK, "infra_aud_26m", "csw_f26m_sel", 9), 110 GATE_INFRA0(CLK_INFRA_AUD_L_CK, "infra_aud_l", "aud_l_sel", 10), 111 GATE_INFRA0(CLK_INFRA_AUD_AUD_CK, "infra_aud_aud", "a1sys_sel", 11), 112 GATE_INFRA0(CLK_INFRA_AUD_EG2_CK, "infra_aud_eg2", "a_tuner_sel", 13), 113 GATE_INFRA0(CLK_INFRA_DRAMC_26M_CK, "infra_dramc_26m", "csw_f26m_sel", 114 14), 115 GATE_INFRA0(CLK_INFRA_DBG_CK, "infra_dbg", "infra_sysaxi_d2", 15), 116 GATE_INFRA0(CLK_INFRA_AP_DMA_CK, "infra_ap_dma", "infra_sysaxi_d2", 16), 117 GATE_INFRA0(CLK_INFRA_SEJ_CK, "infra_sej", "infra_sysaxi_d2", 24), 118 GATE_INFRA0(CLK_INFRA_SEJ_13M_CK, "infra_sej_13m", "csw_f26m_sel", 25), 119 GATE_INFRA0(CLK_INFRA_TRNG_CK, "infra_trng", "sysaxi_sel", 26), 120 /* INFRA1 */ 121 GATE_INFRA1(CLK_INFRA_THERM_CK, "infra_therm", "csw_f26m_sel", 0), 122 GATE_INFRA1(CLK_INFRA_I2C0_CK, "infra_i2c0", "i2c_sel", 1), 123 GATE_INFRA1(CLK_INFRA_UART0_CK, "infra_uart0", "infra_uart0_sel", 2), 124 GATE_INFRA1(CLK_INFRA_UART1_CK, "infra_uart1", "infra_uart1_sel", 3), 125 GATE_INFRA1(CLK_INFRA_UART2_CK, "infra_uart2", "infra_uart2_sel", 4), 126 GATE_INFRA1(CLK_INFRA_NFI1_CK, "infra_nfi1", "nfi1x_sel", 8), 127 GATE_INFRA1(CLK_INFRA_SPINFI1_CK, "infra_spinfi1", "spinfi_sel", 9), 128 GATE_INFRA1(CLK_INFRA_NFI_HCK_CK, "infra_nfi_hck", "infra_sysaxi_d2", 129 10), 130 GATE_INFRA1(CLK_INFRA_SPI0_CK, "infra_spi0", "infra_spi0_sel", 11), 131 GATE_INFRA1(CLK_INFRA_SPI1_CK, "infra_spi1", "infra_spi1_sel", 12), 132 GATE_INFRA1(CLK_INFRA_SPI0_HCK_CK, "infra_spi0_hck", "infra_sysaxi_d2", 133 13), 134 GATE_INFRA1(CLK_INFRA_SPI1_HCK_CK, "infra_spi1_hck", "infra_sysaxi_d2", 135 14), 136 GATE_INFRA1(CLK_INFRA_FRTC_CK, "infra_frtc", "top_rtc_32k", 15), 137 GATE_INFRA1(CLK_INFRA_MSDC_CK, "infra_msdc", "emmc_416m_sel", 16), 138 GATE_INFRA1(CLK_INFRA_MSDC_HCK_CK, "infra_msdc_hck", "emmc_250m_sel", 139 17), 140 GATE_INFRA1(CLK_INFRA_MSDC_133M_CK, "infra_msdc_133m", "sysaxi_sel", 141 18), 142 GATE_INFRA1(CLK_INFRA_MSDC_66M_CK, "infra_msdc_66m", "infra_sysaxi_d2", 143 19), 144 GATE_INFRA1(CLK_INFRA_ADC_26M_CK, "infra_adc_26m", "infra_adc_frc", 20), 145 GATE_INFRA1(CLK_INFRA_ADC_FRC_CK, "infra_adc_frc", "csw_f26m_sel", 21), 146 GATE_INFRA1(CLK_INFRA_FBIST2FPC_CK, "infra_fbist2fpc", "nfi1x_sel", 23), 147 /* INFRA2 */ 148 GATE_INFRA2(CLK_INFRA_IUSB_133_CK, "infra_iusb_133", "sysaxi_sel", 0), 149 GATE_INFRA2(CLK_INFRA_IUSB_66M_CK, "infra_iusb_66m", "infra_sysaxi_d2", 150 1), 151 GATE_INFRA2(CLK_INFRA_IUSB_SYS_CK, "infra_iusb_sys", "u2u3_sys_sel", 2), 152 GATE_INFRA2(CLK_INFRA_IUSB_CK, "infra_iusb", "u2u3_sel", 3), 153 GATE_INFRA2(CLK_INFRA_IPCIE_CK, "infra_ipcie", "pextp_tl_ck_sel", 12), 154 GATE_INFRA2(CLK_INFRA_IPCIE_PIPE_CK, "infra_ipcie_pipe", "top_xtal", 155 13), 156 GATE_INFRA2(CLK_INFRA_IPCIER_CK, "infra_ipcier", "csw_f26m_sel", 14), 157 GATE_INFRA2(CLK_INFRA_IPCIEB_CK, "infra_ipcieb", "sysaxi_sel", 15), 158 }; 159 160 static const struct mtk_clk_desc infra_desc = { 161 .clks = infra_clks, 162 .num_clks = ARRAY_SIZE(infra_clks), 163 .factor_clks = infra_divs, 164 .num_factor_clks = ARRAY_SIZE(infra_divs), 165 .mux_clks = infra_muxes, 166 .num_mux_clks = ARRAY_SIZE(infra_muxes), 167 .clk_lock = &mt7986_clk_lock, 168 }; 169 170 static const struct of_device_id of_match_clk_mt7986_infracfg[] = { 171 { .compatible = "mediatek,mt7986-infracfg", .data = &infra_desc }, 172 { /* sentinel */ } 173 }; 174 MODULE_DEVICE_TABLE(of, of_match_clk_mt7986_infracfg); 175 176 static struct platform_driver clk_mt7986_infracfg_drv = { 177 .driver = { 178 .name = "clk-mt7986-infracfg", 179 .of_match_table = of_match_clk_mt7986_infracfg, 180 }, 181 .probe = mtk_clk_simple_probe, 182 .remove = mtk_clk_simple_remove, 183 }; 184 module_platform_driver(clk_mt7986_infracfg_drv); 185 186 MODULE_DESCRIPTION("MediaTek MT7986 infracfg clocks driver"); 187 MODULE_LICENSE("GPL"); 188