1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2022 MediaTek Inc. 4 * Copyright (c) 2023 Collabora Ltd. 5 */ 6 7 #include <dt-bindings/clock/mediatek,mt8365-clk.h> 8 #include <linux/clk.h> 9 #include <linux/of.h> 10 #include <linux/platform_device.h> 11 12 #include "clk-pll.h" 13 #include "clk-mtk.h" 14 15 #define MT8365_PLL_FMAX (3800UL * MHZ) 16 #define MT8365_PLL_FMIN (1500UL * MHZ) 17 #define CON0_MT8365_RST_BAR BIT(23) 18 19 #define PLL_B(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, \ 20 _pd_reg, _pd_shift, _tuner_reg, _tuner_en_reg, \ 21 _tuner_en_bit, _pcw_reg, _pcw_shift, _div_table, \ 22 _rst_bar_mask, _pcw_chg_reg) { \ 23 .id = _id, \ 24 .name = _name, \ 25 .reg = _reg, \ 26 .pwr_reg = _pwr_reg, \ 27 .en_mask = _en_mask, \ 28 .flags = _flags, \ 29 .rst_bar_mask = _rst_bar_mask, \ 30 .fmax = MT8365_PLL_FMAX, \ 31 .fmin = MT8365_PLL_FMIN, \ 32 .pcwbits = _pcwbits, \ 33 .pcwibits = 8, \ 34 .pd_reg = _pd_reg, \ 35 .pd_shift = _pd_shift, \ 36 .tuner_reg = _tuner_reg, \ 37 .tuner_en_reg = _tuner_en_reg, \ 38 .tuner_en_bit = _tuner_en_bit, \ 39 .pcw_reg = _pcw_reg, \ 40 .pcw_shift = _pcw_shift, \ 41 .pcw_chg_reg = _pcw_chg_reg, \ 42 .div_table = _div_table, \ 43 } 44 45 #define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, \ 46 _pd_reg, _pd_shift, _tuner_reg, \ 47 _tuner_en_reg, _tuner_en_bit, _pcw_reg, \ 48 _pcw_shift, _rst_bar_mask, _pcw_chg_reg) \ 49 PLL_B(_id, _name, _reg, _pwr_reg, _en_mask, _flags, \ 50 _pcwbits, _pd_reg, _pd_shift, \ 51 _tuner_reg, _tuner_en_reg, _tuner_en_bit, \ 52 _pcw_reg, _pcw_shift, NULL, _rst_bar_mask, \ 53 _pcw_chg_reg) \ 54 55 static const struct mtk_pll_div_table armpll_div_table[] = { 56 { .div = 0, .freq = MT8365_PLL_FMAX }, 57 { .div = 1, .freq = 1500 * MHZ }, 58 { .div = 2, .freq = 750 * MHZ }, 59 { .div = 3, .freq = 375 * MHZ }, 60 { .div = 4, .freq = 182500000 }, 61 { } /* sentinel */ 62 }; 63 64 static const struct mtk_pll_div_table mfgpll_div_table[] = { 65 { .div = 0, .freq = MT8365_PLL_FMAX }, 66 { .div = 1, .freq = 1600 * MHZ }, 67 { .div = 2, .freq = 800 * MHZ }, 68 { .div = 3, .freq = 400 * MHZ }, 69 { .div = 4, .freq = 200 * MHZ }, 70 { } /* sentinel */ 71 }; 72 73 static const struct mtk_pll_div_table dsppll_div_table[] = { 74 { .div = 0, .freq = MT8365_PLL_FMAX }, 75 { .div = 1, .freq = 1600 * MHZ }, 76 { .div = 2, .freq = 600 * MHZ }, 77 { .div = 3, .freq = 400 * MHZ }, 78 { .div = 4, .freq = 200 * MHZ }, 79 { } /* sentinel */ 80 }; 81 82 static const struct mtk_pll_data plls[] = { 83 PLL_B(CLK_APMIXED_ARMPLL, "armpll", 0x030C, 0x0318, 0x00000001, PLL_AO, 84 22, 0x0310, 24, 0, 0, 0, 0x0310, 0, armpll_div_table, 0, 0), 85 PLL(CLK_APMIXED_MAINPLL, "mainpll", 0x0228, 0x0234, 0xFF000001, 86 HAVE_RST_BAR, 22, 0x022C, 24, 0, 0, 0, 0x022C, 0, CON0_MT8365_RST_BAR, 0), 87 PLL(CLK_APMIXED_UNIVPLL, "univpll2", 0x0208, 0x0214, 0xFF000001, 88 HAVE_RST_BAR, 22, 0x020C, 24, 0, 0, 0, 0x020C, 0, CON0_MT8365_RST_BAR, 0), 89 PLL_B(CLK_APMIXED_MFGPLL, "mfgpll", 0x0218, 0x0224, 0x00000001, 0, 22, 90 0x021C, 24, 0, 0, 0, 0x021C, 0, mfgpll_div_table, 0, 0), 91 PLL(CLK_APMIXED_MSDCPLL, "msdcpll", 0x0350, 0x035C, 0x00000001, 0, 22, 92 0x0354, 24, 0, 0, 0, 0x0354, 0, 0, 0), 93 PLL(CLK_APMIXED_MMPLL, "mmpll", 0x0330, 0x033C, 0x00000001, 0, 22, 94 0x0334, 24, 0, 0, 0, 0x0334, 0, 0, 0), 95 PLL(CLK_APMIXED_APLL1, "apll1", 0x031C, 0x032C, 0x00000001, 0, 32, 96 0x0320, 24, 0x0040, 0x000C, 0, 0x0324, 0, 0, 0x0320), 97 PLL(CLK_APMIXED_APLL2, "apll2", 0x0360, 0x0370, 0x00000001, 0, 32, 98 0x0364, 24, 0x004C, 0x000C, 5, 0x0368, 0, 0, 0x0364), 99 PLL(CLK_APMIXED_LVDSPLL, "lvdspll", 0x0374, 0x0380, 0x00000001, 0, 22, 100 0x0378, 24, 0, 0, 0, 0x0378, 0, 0, 0), 101 PLL_B(CLK_APMIXED_DSPPLL, "dsppll", 0x0390, 0x039C, 0x00000001, 0, 22, 102 0x0394, 24, 0, 0, 0, 0x0394, 0, dsppll_div_table, 0, 0), 103 PLL(CLK_APMIXED_APUPLL, "apupll", 0x03A0, 0x03AC, 0x00000001, 0, 22, 104 0x03A4, 24, 0, 0, 0, 0x03A4, 0, 0, 0), 105 }; 106 107 static int clk_mt8365_apmixed_probe(struct platform_device *pdev) 108 { 109 void __iomem *base; 110 struct clk_hw_onecell_data *clk_data; 111 struct device_node *node = pdev->dev.of_node; 112 struct device *dev = &pdev->dev; 113 struct clk_hw *hw; 114 int ret; 115 116 base = devm_platform_ioremap_resource(pdev, 0); 117 if (IS_ERR(base)) 118 return PTR_ERR(base); 119 120 clk_data = mtk_devm_alloc_clk_data(dev, CLK_APMIXED_NR_CLK); 121 if (!clk_data) 122 return -ENOMEM; 123 124 hw = devm_clk_hw_register_gate(dev, "univ_en", "univpll2", 0, 125 base + 0x204, 0, 0, NULL); 126 if (IS_ERR(hw)) 127 return PTR_ERR(hw); 128 clk_data->hws[CLK_APMIXED_UNIV_EN] = hw; 129 130 hw = devm_clk_hw_register_gate(dev, "usb20_en", "univ_en", 0, 131 base + 0x204, 1, 0, NULL); 132 if (IS_ERR(hw)) 133 return PTR_ERR(hw); 134 clk_data->hws[CLK_APMIXED_USB20_EN] = hw; 135 136 ret = mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data); 137 if (ret) 138 return ret; 139 140 ret = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); 141 if (ret) 142 goto unregister_plls; 143 144 return 0; 145 146 unregister_plls: 147 mtk_clk_unregister_plls(plls, ARRAY_SIZE(plls), clk_data); 148 149 return ret; 150 } 151 152 static const struct of_device_id of_match_clk_mt8365_apmixed[] = { 153 { .compatible = "mediatek,mt8365-apmixedsys" }, 154 { /* sentinel */ } 155 }; 156 MODULE_DEVICE_TABLE(of, of_match_clk_mt8365_apmixed); 157 158 static struct platform_driver clk_mt8365_apmixed_drv = { 159 .probe = clk_mt8365_apmixed_probe, 160 .driver = { 161 .name = "clk-mt8365-apmixed", 162 .of_match_table = of_match_clk_mt8365_apmixed, 163 }, 164 }; 165 builtin_platform_driver(clk_mt8365_apmixed_drv) 166 MODULE_LICENSE("GPL"); 167