1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2020 huangzhenwei@allwinnertech.com 4 * Copyright (C) 2021 Samuel Holland <samuel@sholland.org> 5 */ 6 7 #include <linux/clk-provider.h> 8 #include <linux/module.h> 9 #include <linux/platform_device.h> 10 11 #include "ccu_common.h" 12 #include "ccu_reset.h" 13 14 #include "ccu_gate.h" 15 #include "ccu_mp.h" 16 17 #include "ccu-sun20i-d1-r.h" 18 19 static const struct clk_parent_data r_ahb_apb0_parents[] = { 20 { .fw_name = "hosc" }, 21 { .fw_name = "losc" }, 22 { .fw_name = "iosc" }, 23 { .fw_name = "pll-periph" }, 24 }; 25 static SUNXI_CCU_MP_DATA_WITH_MUX(r_ahb_clk, "r-ahb", 26 r_ahb_apb0_parents, 0x000, 27 0, 5, /* M */ 28 8, 2, /* P */ 29 24, 3, /* mux */ 30 0); 31 static const struct clk_hw *r_ahb_hw = &r_ahb_clk.common.hw; 32 33 static SUNXI_CCU_MP_DATA_WITH_MUX(r_apb0_clk, "r-apb0", 34 r_ahb_apb0_parents, 0x00c, 35 0, 5, /* M */ 36 8, 2, /* P */ 37 24, 3, /* mux */ 38 0); 39 static const struct clk_hw *r_apb0_hw = &r_apb0_clk.common.hw; 40 41 static SUNXI_CCU_GATE_HWS(bus_r_timer_clk, "bus-r-timer", &r_apb0_hw, 42 0x11c, BIT(0), 0); 43 static SUNXI_CCU_GATE_HWS(bus_r_twd_clk, "bus-r-twd", &r_apb0_hw, 44 0x12c, BIT(0), 0); 45 static SUNXI_CCU_GATE_HWS(bus_r_ppu_clk, "bus-r-ppu", &r_apb0_hw, 46 0x1ac, BIT(0), 0); 47 48 static const struct clk_parent_data r_ir_rx_parents[] = { 49 { .fw_name = "losc" }, 50 { .fw_name = "hosc" }, 51 }; 52 static SUNXI_CCU_MP_DATA_WITH_MUX_GATE(r_ir_rx_clk, "r-ir-rx", 53 r_ir_rx_parents, 0x1c0, 54 0, 5, /* M */ 55 8, 2, /* P */ 56 24, 2, /* mux */ 57 BIT(31), /* gate */ 58 0); 59 60 static SUNXI_CCU_GATE_HWS(bus_r_ir_rx_clk, "bus-r-ir-rx", &r_apb0_hw, 61 0x1cc, BIT(0), 0); 62 static SUNXI_CCU_GATE_HWS(bus_r_rtc_clk, "bus-r-rtc", &r_ahb_hw, 63 0x20c, BIT(0), 0); 64 static SUNXI_CCU_GATE_HWS(bus_r_cpucfg_clk, "bus-r-cpucfg", &r_apb0_hw, 65 0x22c, BIT(0), 0); 66 67 static struct ccu_common *sun20i_d1_r_ccu_clks[] = { 68 &r_ahb_clk.common, 69 &r_apb0_clk.common, 70 &bus_r_timer_clk.common, 71 &bus_r_twd_clk.common, 72 &bus_r_ppu_clk.common, 73 &r_ir_rx_clk.common, 74 &bus_r_ir_rx_clk.common, 75 &bus_r_rtc_clk.common, 76 &bus_r_cpucfg_clk.common, 77 }; 78 79 static struct clk_hw_onecell_data sun20i_d1_r_hw_clks = { 80 .num = CLK_NUMBER, 81 .hws = { 82 [CLK_R_AHB] = &r_ahb_clk.common.hw, 83 [CLK_R_APB0] = &r_apb0_clk.common.hw, 84 [CLK_BUS_R_TIMER] = &bus_r_timer_clk.common.hw, 85 [CLK_BUS_R_TWD] = &bus_r_twd_clk.common.hw, 86 [CLK_BUS_R_PPU] = &bus_r_ppu_clk.common.hw, 87 [CLK_R_IR_RX] = &r_ir_rx_clk.common.hw, 88 [CLK_BUS_R_IR_RX] = &bus_r_ir_rx_clk.common.hw, 89 [CLK_BUS_R_RTC] = &bus_r_rtc_clk.common.hw, 90 [CLK_BUS_R_CPUCFG] = &bus_r_cpucfg_clk.common.hw, 91 }, 92 }; 93 94 static struct ccu_reset_map sun20i_d1_r_ccu_resets[] = { 95 [RST_BUS_R_TIMER] = { 0x11c, BIT(16) }, 96 [RST_BUS_R_TWD] = { 0x12c, BIT(16) }, 97 [RST_BUS_R_PPU] = { 0x1ac, BIT(16) }, 98 [RST_BUS_R_IR_RX] = { 0x1cc, BIT(16) }, 99 [RST_BUS_R_RTC] = { 0x20c, BIT(16) }, 100 [RST_BUS_R_CPUCFG] = { 0x22c, BIT(16) }, 101 }; 102 103 static const struct sunxi_ccu_desc sun20i_d1_r_ccu_desc = { 104 .ccu_clks = sun20i_d1_r_ccu_clks, 105 .num_ccu_clks = ARRAY_SIZE(sun20i_d1_r_ccu_clks), 106 107 .hw_clks = &sun20i_d1_r_hw_clks, 108 109 .resets = sun20i_d1_r_ccu_resets, 110 .num_resets = ARRAY_SIZE(sun20i_d1_r_ccu_resets), 111 }; 112 113 static int sun20i_d1_r_ccu_probe(struct platform_device *pdev) 114 { 115 void __iomem *reg; 116 117 reg = devm_platform_ioremap_resource(pdev, 0); 118 if (IS_ERR(reg)) 119 return PTR_ERR(reg); 120 121 return devm_sunxi_ccu_probe(&pdev->dev, reg, &sun20i_d1_r_ccu_desc); 122 } 123 124 static const struct of_device_id sun20i_d1_r_ccu_ids[] = { 125 { .compatible = "allwinner,sun20i-d1-r-ccu" }, 126 { } 127 }; 128 MODULE_DEVICE_TABLE(of, sun20i_d1_r_ccu_ids); 129 130 static struct platform_driver sun20i_d1_r_ccu_driver = { 131 .probe = sun20i_d1_r_ccu_probe, 132 .driver = { 133 .name = "sun20i-d1-r-ccu", 134 .suppress_bind_attrs = true, 135 .of_match_table = sun20i_d1_r_ccu_ids, 136 }, 137 }; 138 module_platform_driver(sun20i_d1_r_ccu_driver); 139 140 MODULE_IMPORT_NS(SUNXI_CCU); 141 MODULE_DESCRIPTION("Support for the Allwinner D1/R528/T113 PRCM CCU"); 142 MODULE_LICENSE("GPL"); 143