1 /* 2 * Device Tree support for Allwinner A1X SoCs 3 * 4 * Copyright (C) 2012 Maxime Ripard 5 * 6 * Maxime Ripard <maxime.ripard@free-electrons.com> 7 * 8 * This file is licensed under the terms of the GNU General Public 9 * License version 2. This program is licensed "as is" without any 10 * warranty of any kind, whether express or implied. 11 */ 12 13 #include <linux/clk-provider.h> 14 #include <linux/clocksource.h> 15 #include <linux/init.h> 16 #include <linux/platform_device.h> 17 18 #include <asm/mach/arch.h> 19 20 static void __init sunxi_dt_cpufreq_init(void) 21 { 22 platform_device_register_simple("cpufreq-dt", -1, NULL, 0); 23 } 24 25 static const char * const sunxi_board_dt_compat[] = { 26 "allwinner,sun4i-a10", 27 "allwinner,sun5i-a10s", 28 "allwinner,sun5i-a13", 29 "allwinner,sun5i-r8", 30 NULL, 31 }; 32 33 DT_MACHINE_START(SUNXI_DT, "Allwinner sun4i/sun5i Families") 34 .dt_compat = sunxi_board_dt_compat, 35 .init_late = sunxi_dt_cpufreq_init, 36 MACHINE_END 37 38 static const char * const sun6i_board_dt_compat[] = { 39 "allwinner,sun6i-a31", 40 "allwinner,sun6i-a31s", 41 NULL, 42 }; 43 44 extern void __init sun6i_reset_init(void); 45 static void __init sun6i_timer_init(void) 46 { 47 of_clk_init(NULL); 48 if (IS_ENABLED(CONFIG_RESET_CONTROLLER)) 49 sun6i_reset_init(); 50 clocksource_probe(); 51 } 52 53 DT_MACHINE_START(SUN6I_DT, "Allwinner sun6i (A31) Family") 54 .init_time = sun6i_timer_init, 55 .dt_compat = sun6i_board_dt_compat, 56 .init_late = sunxi_dt_cpufreq_init, 57 MACHINE_END 58 59 static const char * const sun7i_board_dt_compat[] = { 60 "allwinner,sun7i-a20", 61 NULL, 62 }; 63 64 DT_MACHINE_START(SUN7I_DT, "Allwinner sun7i (A20) Family") 65 .dt_compat = sun7i_board_dt_compat, 66 .init_late = sunxi_dt_cpufreq_init, 67 MACHINE_END 68 69 static const char * const sun8i_board_dt_compat[] = { 70 "allwinner,sun8i-a23", 71 "allwinner,sun8i-a33", 72 "allwinner,sun8i-a83t", 73 "allwinner,sun8i-h3", 74 NULL, 75 }; 76 77 DT_MACHINE_START(SUN8I_DT, "Allwinner sun8i Family") 78 .init_time = sun6i_timer_init, 79 .dt_compat = sun8i_board_dt_compat, 80 .init_late = sunxi_dt_cpufreq_init, 81 MACHINE_END 82 83 static const char * const sun9i_board_dt_compat[] = { 84 "allwinner,sun9i-a80", 85 NULL, 86 }; 87 88 DT_MACHINE_START(SUN9I_DT, "Allwinner sun9i Family") 89 .dt_compat = sun9i_board_dt_compat, 90 MACHINE_END 91