1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2018 Amarula Solutions. 4 * Author: Jagan Teki <jagan@amarulasolutions.com> 5 */ 6 7 #include <common.h> 8 #include <clk-uclass.h> 9 #include <dm.h> 10 #include <errno.h> 11 #include <asm/arch/ccu.h> 12 #include <dt-bindings/clock/sun9i-a80-ccu.h> 13 #include <dt-bindings/reset/sun9i-a80-ccu.h> 14 15 static const struct ccu_clk_gate a80_gates[] = { 16 [CLK_SPI0] = GATE(0x430, BIT(31)), 17 [CLK_SPI1] = GATE(0x434, BIT(31)), 18 [CLK_SPI2] = GATE(0x438, BIT(31)), 19 [CLK_SPI3] = GATE(0x43c, BIT(31)), 20 21 [CLK_BUS_MMC] = GATE(0x580, BIT(8)), 22 [CLK_BUS_SPI0] = GATE(0x580, BIT(20)), 23 [CLK_BUS_SPI1] = GATE(0x580, BIT(21)), 24 [CLK_BUS_SPI2] = GATE(0x580, BIT(22)), 25 [CLK_BUS_SPI3] = GATE(0x580, BIT(23)), 26 27 [CLK_BUS_UART0] = GATE(0x594, BIT(16)), 28 [CLK_BUS_UART1] = GATE(0x594, BIT(17)), 29 [CLK_BUS_UART2] = GATE(0x594, BIT(18)), 30 [CLK_BUS_UART3] = GATE(0x594, BIT(19)), 31 [CLK_BUS_UART4] = GATE(0x594, BIT(20)), 32 [CLK_BUS_UART5] = GATE(0x594, BIT(21)), 33 }; 34 35 static const struct ccu_reset a80_resets[] = { 36 [RST_BUS_MMC] = RESET(0x5a0, BIT(8)), 37 [RST_BUS_SPI0] = RESET(0x5a0, BIT(20)), 38 [RST_BUS_SPI1] = RESET(0x5a0, BIT(21)), 39 [RST_BUS_SPI2] = RESET(0x5a0, BIT(22)), 40 [RST_BUS_SPI3] = RESET(0x5a0, BIT(23)), 41 42 [RST_BUS_UART0] = RESET(0x5b4, BIT(16)), 43 [RST_BUS_UART1] = RESET(0x5b4, BIT(17)), 44 [RST_BUS_UART2] = RESET(0x5b4, BIT(18)), 45 [RST_BUS_UART3] = RESET(0x5b4, BIT(19)), 46 [RST_BUS_UART4] = RESET(0x5b4, BIT(20)), 47 [RST_BUS_UART5] = RESET(0x5b4, BIT(21)), 48 }; 49 50 static const struct ccu_clk_gate a80_mmc_gates[] = { 51 [0] = GATE(0x0, BIT(16)), 52 [1] = GATE(0x4, BIT(16)), 53 [2] = GATE(0x8, BIT(16)), 54 [3] = GATE(0xc, BIT(16)), 55 }; 56 57 static const struct ccu_reset a80_mmc_resets[] = { 58 [0] = GATE(0x0, BIT(18)), 59 [1] = GATE(0x4, BIT(18)), 60 [2] = GATE(0x8, BIT(18)), 61 [3] = GATE(0xc, BIT(18)), 62 }; 63 64 static const struct ccu_desc a80_ccu_desc = { 65 .gates = a80_gates, 66 .resets = a80_resets, 67 }; 68 69 static const struct ccu_desc a80_mmc_clk_desc = { 70 .gates = a80_mmc_gates, 71 .resets = a80_mmc_resets, 72 }; 73 74 static int a80_clk_bind(struct udevice *dev) 75 { 76 ulong count = ARRAY_SIZE(a80_resets); 77 78 if (device_is_compatible(dev, "allwinner,sun9i-a80-mmc-config-clk")) 79 count = ARRAY_SIZE(a80_mmc_resets); 80 81 return sunxi_reset_bind(dev, count); 82 } 83 84 static const struct udevice_id a80_ccu_ids[] = { 85 { .compatible = "allwinner,sun9i-a80-ccu", 86 .data = (ulong)&a80_ccu_desc }, 87 { .compatible = "allwinner,sun9i-a80-mmc-config-clk", 88 .data = (ulong)&a80_mmc_clk_desc }, 89 { } 90 }; 91 92 U_BOOT_DRIVER(clk_sun9i_a80) = { 93 .name = "sun9i_a80_ccu", 94 .id = UCLASS_CLK, 95 .of_match = a80_ccu_ids, 96 .priv_auto_alloc_size = sizeof(struct ccu_priv), 97 .ops = &sunxi_clk_ops, 98 .probe = sunxi_clk_probe, 99 .bind = a80_clk_bind, 100 }; 101