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_BUS_UART0] = GATE(0x594, BIT(16)), 17 [CLK_BUS_UART1] = GATE(0x594, BIT(17)), 18 [CLK_BUS_UART2] = GATE(0x594, BIT(18)), 19 [CLK_BUS_UART3] = GATE(0x594, BIT(19)), 20 [CLK_BUS_UART4] = GATE(0x594, BIT(20)), 21 [CLK_BUS_UART5] = GATE(0x594, BIT(21)), 22 }; 23 24 static const struct ccu_reset a80_resets[] = { 25 [RST_BUS_UART0] = RESET(0x5b4, BIT(16)), 26 [RST_BUS_UART1] = RESET(0x5b4, BIT(17)), 27 [RST_BUS_UART2] = RESET(0x5b4, BIT(18)), 28 [RST_BUS_UART3] = RESET(0x5b4, BIT(19)), 29 [RST_BUS_UART4] = RESET(0x5b4, BIT(20)), 30 [RST_BUS_UART5] = RESET(0x5b4, BIT(21)), 31 }; 32 33 static const struct ccu_desc a80_ccu_desc = { 34 .gates = a80_gates, 35 .resets = a80_resets, 36 }; 37 38 static int a80_clk_bind(struct udevice *dev) 39 { 40 return sunxi_reset_bind(dev, ARRAY_SIZE(a80_resets)); 41 } 42 43 static const struct udevice_id a80_ccu_ids[] = { 44 { .compatible = "allwinner,sun9i-a80-ccu", 45 .data = (ulong)&a80_ccu_desc }, 46 { } 47 }; 48 49 U_BOOT_DRIVER(clk_sun9i_a80) = { 50 .name = "sun9i_a80_ccu", 51 .id = UCLASS_CLK, 52 .of_match = a80_ccu_ids, 53 .priv_auto_alloc_size = sizeof(struct ccu_priv), 54 .ops = &sunxi_clk_ops, 55 .probe = sunxi_clk_probe, 56 .bind = a80_clk_bind, 57 }; 58