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 { \ 92 .id = _id, .name = _name, .parent_name = _parent, \ 93 .regs = &infra0_cg_regs, .shift = _shift, \ 94 .ops = &mtk_clk_gate_ops_setclr, \ 95 } 96 97 #define GATE_INFRA1(_id, _name, _parent, _shift) \ 98 { \ 99 .id = _id, .name = _name, .parent_name = _parent, \ 100 .regs = &infra1_cg_regs, .shift = _shift, \ 101 .ops = &mtk_clk_gate_ops_setclr, \ 102 } 103 104 #define GATE_INFRA2(_id, _name, _parent, _shift) \ 105 { \ 106 .id = _id, .name = _name, .parent_name = _parent, \ 107 .regs = &infra2_cg_regs, .shift = _shift, \ 108 .ops = &mtk_clk_gate_ops_setclr, \ 109 } 110 111 static const struct mtk_gate infra_clks[] = { 112 /* INFRA0 */ 113 GATE_INFRA0(CLK_INFRA_GPT_STA, "infra_gpt_sta", "infra_sysaxi_d2", 0), 114 GATE_INFRA0(CLK_INFRA_PWM_HCK, "infra_pwm_hck", "infra_sysaxi_d2", 1), 115 GATE_INFRA0(CLK_INFRA_PWM_STA, "infra_pwm_sta", "infra_pwm_bsel", 2), 116 GATE_INFRA0(CLK_INFRA_PWM1_CK, "infra_pwm1", "infra_pwm1_sel", 3), 117 GATE_INFRA0(CLK_INFRA_PWM2_CK, "infra_pwm2", "infra_pwm2_sel", 4), 118 GATE_INFRA0(CLK_INFRA_CQ_DMA_CK, "infra_cq_dma", "sysaxi_sel", 6), 119 GATE_INFRA0(CLK_INFRA_EIP97_CK, "infra_eip97", "eip_b_sel", 7), 120 GATE_INFRA0(CLK_INFRA_AUD_BUS_CK, "infra_aud_bus", "sysaxi_sel", 8), 121 GATE_INFRA0(CLK_INFRA_AUD_26M_CK, "infra_aud_26m", "csw_f26m_sel", 9), 122 GATE_INFRA0(CLK_INFRA_AUD_L_CK, "infra_aud_l", "aud_l_sel", 10), 123 GATE_INFRA0(CLK_INFRA_AUD_AUD_CK, "infra_aud_aud", "a1sys_sel", 11), 124 GATE_INFRA0(CLK_INFRA_AUD_EG2_CK, "infra_aud_eg2", "a_tuner_sel", 13), 125 GATE_INFRA0(CLK_INFRA_DRAMC_26M_CK, "infra_dramc_26m", "csw_f26m_sel", 126 14), 127 GATE_INFRA0(CLK_INFRA_DBG_CK, "infra_dbg", "infra_sysaxi_d2", 15), 128 GATE_INFRA0(CLK_INFRA_AP_DMA_CK, "infra_ap_dma", "infra_sysaxi_d2", 16), 129 GATE_INFRA0(CLK_INFRA_SEJ_CK, "infra_sej", "infra_sysaxi_d2", 24), 130 GATE_INFRA0(CLK_INFRA_SEJ_13M_CK, "infra_sej_13m", "csw_f26m_sel", 25), 131 GATE_INFRA0(CLK_INFRA_TRNG_CK, "infra_trng", "sysaxi_sel", 26), 132 /* INFRA1 */ 133 GATE_INFRA1(CLK_INFRA_THERM_CK, "infra_therm", "csw_f26m_sel", 0), 134 GATE_INFRA1(CLK_INFRA_I2C0_CK, "infra_i2c0", "i2c_sel", 1), 135 GATE_INFRA1(CLK_INFRA_UART0_CK, "infra_uart0", "infra_uart0_sel", 2), 136 GATE_INFRA1(CLK_INFRA_UART1_CK, "infra_uart1", "infra_uart1_sel", 3), 137 GATE_INFRA1(CLK_INFRA_UART2_CK, "infra_uart2", "infra_uart2_sel", 4), 138 GATE_INFRA1(CLK_INFRA_NFI1_CK, "infra_nfi1", "nfi1x_sel", 8), 139 GATE_INFRA1(CLK_INFRA_SPINFI1_CK, "infra_spinfi1", "spinfi_sel", 9), 140 GATE_INFRA1(CLK_INFRA_NFI_HCK_CK, "infra_nfi_hck", "infra_sysaxi_d2", 141 10), 142 GATE_INFRA1(CLK_INFRA_SPI0_CK, "infra_spi0", "infra_spi0_sel", 11), 143 GATE_INFRA1(CLK_INFRA_SPI1_CK, "infra_spi1", "infra_spi1_sel", 12), 144 GATE_INFRA1(CLK_INFRA_SPI0_HCK_CK, "infra_spi0_hck", "infra_sysaxi_d2", 145 13), 146 GATE_INFRA1(CLK_INFRA_SPI1_HCK_CK, "infra_spi1_hck", "infra_sysaxi_d2", 147 14), 148 GATE_INFRA1(CLK_INFRA_FRTC_CK, "infra_frtc", "top_rtc_32k", 15), 149 GATE_INFRA1(CLK_INFRA_MSDC_CK, "infra_msdc", "emmc_416m_sel", 16), 150 GATE_INFRA1(CLK_INFRA_MSDC_HCK_CK, "infra_msdc_hck", "emmc_250m_sel", 151 17), 152 GATE_INFRA1(CLK_INFRA_MSDC_133M_CK, "infra_msdc_133m", "sysaxi_sel", 153 18), 154 GATE_INFRA1(CLK_INFRA_MSDC_66M_CK, "infra_msdc_66m", "infra_sysaxi_d2", 155 19), 156 GATE_INFRA1(CLK_INFRA_ADC_26M_CK, "infra_adc_26m", "csw_f26m_sel", 20), 157 GATE_INFRA1(CLK_INFRA_ADC_FRC_CK, "infra_adc_frc", "csw_f26m_sel", 21), 158 GATE_INFRA1(CLK_INFRA_FBIST2FPC_CK, "infra_fbist2fpc", "nfi1x_sel", 23), 159 /* INFRA2 */ 160 GATE_INFRA2(CLK_INFRA_IUSB_133_CK, "infra_iusb_133", "sysaxi_sel", 0), 161 GATE_INFRA2(CLK_INFRA_IUSB_66M_CK, "infra_iusb_66m", "infra_sysaxi_d2", 162 1), 163 GATE_INFRA2(CLK_INFRA_IUSB_SYS_CK, "infra_iusb_sys", "u2u3_sys_sel", 2), 164 GATE_INFRA2(CLK_INFRA_IUSB_CK, "infra_iusb", "u2u3_sel", 3), 165 GATE_INFRA2(CLK_INFRA_IPCIE_CK, "infra_ipcie", "pextp_tl_ck_sel", 12), 166 GATE_INFRA2(CLK_INFRA_IPCIE_PIPE_CK, "infra_ipcie_pipe", "top_xtal", 167 13), 168 GATE_INFRA2(CLK_INFRA_IPCIER_CK, "infra_ipcier", "csw_f26m_sel", 14), 169 GATE_INFRA2(CLK_INFRA_IPCIEB_CK, "infra_ipcieb", "sysaxi_sel", 15), 170 }; 171 172 static int clk_mt7986_infracfg_probe(struct platform_device *pdev) 173 { 174 struct clk_onecell_data *clk_data; 175 struct device_node *node = pdev->dev.of_node; 176 int r; 177 void __iomem *base; 178 int nr = ARRAY_SIZE(infra_divs) + ARRAY_SIZE(infra_muxes) + 179 ARRAY_SIZE(infra_clks); 180 181 base = of_iomap(node, 0); 182 if (!base) { 183 pr_err("%s(): ioremap failed\n", __func__); 184 return -ENOMEM; 185 } 186 187 clk_data = mtk_alloc_clk_data(nr); 188 189 if (!clk_data) 190 return -ENOMEM; 191 192 mtk_clk_register_factors(infra_divs, ARRAY_SIZE(infra_divs), clk_data); 193 mtk_clk_register_muxes(infra_muxes, ARRAY_SIZE(infra_muxes), node, 194 &mt7986_clk_lock, clk_data); 195 mtk_clk_register_gates(node, infra_clks, ARRAY_SIZE(infra_clks), 196 clk_data); 197 198 r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); 199 if (r) { 200 pr_err("%s(): could not register clock provider: %d\n", 201 __func__, r); 202 goto free_infracfg_data; 203 } 204 return r; 205 206 free_infracfg_data: 207 mtk_free_clk_data(clk_data); 208 return r; 209 210 } 211 212 static const struct of_device_id of_match_clk_mt7986_infracfg[] = { 213 { .compatible = "mediatek,mt7986-infracfg", }, 214 {} 215 }; 216 217 static struct platform_driver clk_mt7986_infracfg_drv = { 218 .probe = clk_mt7986_infracfg_probe, 219 .driver = { 220 .name = "clk-mt7986-infracfg", 221 .of_match_table = of_match_clk_mt7986_infracfg, 222 }, 223 }; 224 builtin_platform_driver(clk_mt7986_infracfg_drv); 225