1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2023 MediaTek Inc. 4 * Author: Sam Shih <sam.shih@mediatek.com> 5 * Author: Xiufeng Li <Xiufeng.Li@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 "reset.h" 16 #include <dt-bindings/clock/mediatek,mt7988-clk.h> 17 #include <dt-bindings/reset/mediatek,mt7988-resets.h> 18 19 static const struct mtk_gate_regs ethdma_cg_regs = { 20 .set_ofs = 0x30, 21 .clr_ofs = 0x30, 22 .sta_ofs = 0x30, 23 }; 24 25 #define GATE_ETHDMA(_id, _name, _parent, _shift) \ 26 { \ 27 .id = _id, \ 28 .name = _name, \ 29 .parent_name = _parent, \ 30 .regs = ðdma_cg_regs, \ 31 .shift = _shift, \ 32 .ops = &mtk_clk_gate_ops_no_setclr_inv, \ 33 } 34 35 static const struct mtk_gate ethdma_clks[] = { 36 GATE_ETHDMA(CLK_ETHDMA_XGP1_EN, "ethdma_xgp1_en", "top_xtal", 0), 37 GATE_ETHDMA(CLK_ETHDMA_XGP2_EN, "ethdma_xgp2_en", "top_xtal", 1), 38 GATE_ETHDMA(CLK_ETHDMA_XGP3_EN, "ethdma_xgp3_en", "top_xtal", 2), 39 GATE_ETHDMA(CLK_ETHDMA_FE_EN, "ethdma_fe_en", "netsys_2x_sel", 6), 40 GATE_ETHDMA(CLK_ETHDMA_GP2_EN, "ethdma_gp2_en", "top_xtal", 7), 41 GATE_ETHDMA(CLK_ETHDMA_GP1_EN, "ethdma_gp1_en", "top_xtal", 8), 42 GATE_ETHDMA(CLK_ETHDMA_GP3_EN, "ethdma_gp3_en", "top_xtal", 10), 43 GATE_ETHDMA(CLK_ETHDMA_ESW_EN, "ethdma_esw_en", "netsys_gsw_sel", 16), 44 GATE_ETHDMA(CLK_ETHDMA_CRYPT0_EN, "ethdma_crypt0_en", "eip197_sel", 29), 45 }; 46 47 static const struct mtk_clk_desc ethdma_desc = { 48 .clks = ethdma_clks, 49 .num_clks = ARRAY_SIZE(ethdma_clks), 50 }; 51 52 static const struct mtk_gate_regs sgmii_cg_regs = { 53 .set_ofs = 0xe4, 54 .clr_ofs = 0xe4, 55 .sta_ofs = 0xe4, 56 }; 57 58 #define GATE_SGMII(_id, _name, _parent, _shift) \ 59 { \ 60 .id = _id, \ 61 .name = _name, \ 62 .parent_name = _parent, \ 63 .regs = &sgmii_cg_regs, \ 64 .shift = _shift, \ 65 .ops = &mtk_clk_gate_ops_no_setclr_inv, \ 66 } 67 68 static const struct mtk_gate sgmii0_clks[] = { 69 GATE_SGMII(CLK_SGM0_TX_EN, "sgm0_tx_en", "top_xtal", 2), 70 GATE_SGMII(CLK_SGM0_RX_EN, "sgm0_rx_en", "top_xtal", 3), 71 }; 72 73 static const struct mtk_clk_desc sgmii0_desc = { 74 .clks = sgmii0_clks, 75 .num_clks = ARRAY_SIZE(sgmii0_clks), 76 }; 77 78 static const struct mtk_gate sgmii1_clks[] = { 79 GATE_SGMII(CLK_SGM1_TX_EN, "sgm1_tx_en", "top_xtal", 2), 80 GATE_SGMII(CLK_SGM1_RX_EN, "sgm1_rx_en", "top_xtal", 3), 81 }; 82 83 static const struct mtk_clk_desc sgmii1_desc = { 84 .clks = sgmii1_clks, 85 .num_clks = ARRAY_SIZE(sgmii1_clks), 86 }; 87 88 static const struct mtk_gate_regs ethwarp_cg_regs = { 89 .set_ofs = 0x14, 90 .clr_ofs = 0x14, 91 .sta_ofs = 0x14, 92 }; 93 94 #define GATE_ETHWARP(_id, _name, _parent, _shift) \ 95 { \ 96 .id = _id, \ 97 .name = _name, \ 98 .parent_name = _parent, \ 99 .regs = ðwarp_cg_regs, \ 100 .shift = _shift, \ 101 .ops = &mtk_clk_gate_ops_no_setclr_inv, \ 102 } 103 104 static const struct mtk_gate ethwarp_clks[] = { 105 GATE_ETHWARP(CLK_ETHWARP_WOCPU2_EN, "ethwarp_wocpu2_en", "netsys_mcu_sel", 13), 106 GATE_ETHWARP(CLK_ETHWARP_WOCPU1_EN, "ethwarp_wocpu1_en", "netsys_mcu_sel", 14), 107 GATE_ETHWARP(CLK_ETHWARP_WOCPU0_EN, "ethwarp_wocpu0_en", "netsys_mcu_sel", 15), 108 }; 109 110 static u16 ethwarp_rst_ofs[] = { 0x8 }; 111 112 static u16 ethwarp_idx_map[] = { 113 [MT7988_ETHWARP_RST_SWITCH] = 9, 114 }; 115 116 static const struct mtk_clk_rst_desc ethwarp_rst_desc = { 117 .version = MTK_RST_SIMPLE, 118 .rst_bank_ofs = ethwarp_rst_ofs, 119 .rst_bank_nr = ARRAY_SIZE(ethwarp_rst_ofs), 120 .rst_idx_map = ethwarp_idx_map, 121 .rst_idx_map_nr = ARRAY_SIZE(ethwarp_idx_map), 122 }; 123 124 static const struct mtk_clk_desc ethwarp_desc = { 125 .clks = ethwarp_clks, 126 .num_clks = ARRAY_SIZE(ethwarp_clks), 127 .rst_desc = ðwarp_rst_desc, 128 }; 129 130 static const struct of_device_id of_match_clk_mt7988_eth[] = { 131 { .compatible = "mediatek,mt7988-ethsys", .data = ðdma_desc }, 132 { .compatible = "mediatek,mt7988-sgmiisys0", .data = &sgmii0_desc }, 133 { .compatible = "mediatek,mt7988-sgmiisys1", .data = &sgmii1_desc }, 134 { .compatible = "mediatek,mt7988-ethwarp", .data = ðwarp_desc }, 135 { /* sentinel */ } 136 }; 137 MODULE_DEVICE_TABLE(of, of_match_clk_mt7988_eth); 138 139 static struct platform_driver clk_mt7988_eth_drv = { 140 .driver = { 141 .name = "clk-mt7988-eth", 142 .of_match_table = of_match_clk_mt7988_eth, 143 }, 144 .probe = mtk_clk_simple_probe, 145 .remove_new = mtk_clk_simple_remove, 146 }; 147 module_platform_driver(clk_mt7988_eth_drv); 148 149 MODULE_DESCRIPTION("MediaTek MT7988 Ethernet clocks driver"); 150 MODULE_LICENSE("GPL"); 151