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