1 /* 2 * Copyright (C) 2005 Nokia Corporation 3 * Author: Paul Mundt <paul.mundt@nokia.com> 4 * 5 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ 6 * 7 * Modified from the original mach-omap/omap2/board-generic.c did by Paul 8 * to support the OMAP2+ device tree boards with an unique board file. 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License version 2 as 12 * published by the Free Software Foundation. 13 */ 14 #include <linux/io.h> 15 #include <linux/of_irq.h> 16 #include <linux/of_platform.h> 17 #include <linux/irqdomain.h> 18 #include <linux/clk.h> 19 20 #include <asm/mach/arch.h> 21 22 #include "common.h" 23 #include "common-board-devices.h" 24 #include "dss-common.h" 25 26 #if !(defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)) 27 #define intc_of_init NULL 28 #endif 29 #ifndef CONFIG_ARCH_OMAP4 30 #define gic_of_init NULL 31 #endif 32 33 static struct of_device_id omap_dt_match_table[] __initdata = { 34 { .compatible = "simple-bus", }, 35 { .compatible = "ti,omap-infra", }, 36 { } 37 }; 38 39 /* 40 * Create alias for USB host PHY clock. 41 * Remove this when clock phandle can be provided via DT 42 */ 43 static void __init legacy_init_ehci_clk(char *clkname) 44 { 45 int ret; 46 47 ret = clk_add_alias("main_clk", NULL, clkname, NULL); 48 if (ret) { 49 pr_err("%s:Failed to add main_clk alias to %s :%d\n", 50 __func__, clkname, ret); 51 } 52 } 53 54 static void __init omap_generic_init(void) 55 { 56 omap_sdrc_init(NULL, NULL); 57 58 of_platform_populate(NULL, omap_dt_match_table, NULL, NULL); 59 60 /* 61 * HACK: call display setup code for selected boards to enable omapdss. 62 * This will be removed when omapdss supports DT. 63 */ 64 if (of_machine_is_compatible("ti,omap4-panda")) { 65 omap4_panda_display_init_of(); 66 legacy_init_ehci_clk("auxclk3_ck"); 67 68 } 69 else if (of_machine_is_compatible("ti,omap4-sdp")) 70 omap_4430sdp_display_init_of(); 71 else if (of_machine_is_compatible("ti,omap5-uevm")) 72 legacy_init_ehci_clk("auxclk1_ck"); 73 } 74 75 #ifdef CONFIG_SOC_OMAP2420 76 static const char *omap242x_boards_compat[] __initdata = { 77 "ti,omap2420", 78 NULL, 79 }; 80 81 DT_MACHINE_START(OMAP242X_DT, "Generic OMAP2420 (Flattened Device Tree)") 82 .reserve = omap_reserve, 83 .map_io = omap242x_map_io, 84 .init_early = omap2420_init_early, 85 .init_irq = omap_intc_of_init, 86 .handle_irq = omap2_intc_handle_irq, 87 .init_machine = omap_generic_init, 88 .init_time = omap2_sync32k_timer_init, 89 .dt_compat = omap242x_boards_compat, 90 .restart = omap2xxx_restart, 91 MACHINE_END 92 #endif 93 94 #ifdef CONFIG_SOC_OMAP2430 95 static const char *omap243x_boards_compat[] __initdata = { 96 "ti,omap2430", 97 NULL, 98 }; 99 100 DT_MACHINE_START(OMAP243X_DT, "Generic OMAP2430 (Flattened Device Tree)") 101 .reserve = omap_reserve, 102 .map_io = omap243x_map_io, 103 .init_early = omap2430_init_early, 104 .init_irq = omap_intc_of_init, 105 .handle_irq = omap2_intc_handle_irq, 106 .init_machine = omap_generic_init, 107 .init_time = omap2_sync32k_timer_init, 108 .dt_compat = omap243x_boards_compat, 109 .restart = omap2xxx_restart, 110 MACHINE_END 111 #endif 112 113 #ifdef CONFIG_ARCH_OMAP3 114 static const char *omap3_boards_compat[] __initdata = { 115 "ti,omap3", 116 NULL, 117 }; 118 119 DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)") 120 .reserve = omap_reserve, 121 .map_io = omap3_map_io, 122 .init_early = omap3430_init_early, 123 .init_irq = omap_intc_of_init, 124 .handle_irq = omap3_intc_handle_irq, 125 .init_machine = omap_generic_init, 126 .init_late = omap3_init_late, 127 .init_time = omap3_sync32k_timer_init, 128 .dt_compat = omap3_boards_compat, 129 .restart = omap3xxx_restart, 130 MACHINE_END 131 132 static const char *omap3_gp_boards_compat[] __initdata = { 133 "ti,omap3-beagle", 134 "timll,omap3-devkit8000", 135 NULL, 136 }; 137 138 DT_MACHINE_START(OMAP3_GP_DT, "Generic OMAP3-GP (Flattened Device Tree)") 139 .reserve = omap_reserve, 140 .map_io = omap3_map_io, 141 .init_early = omap3430_init_early, 142 .init_irq = omap_intc_of_init, 143 .handle_irq = omap3_intc_handle_irq, 144 .init_machine = omap_generic_init, 145 .init_late = omap3_init_late, 146 .init_time = omap3_secure_sync32k_timer_init, 147 .dt_compat = omap3_gp_boards_compat, 148 .restart = omap3xxx_restart, 149 MACHINE_END 150 #endif 151 152 #ifdef CONFIG_SOC_AM33XX 153 static const char *am33xx_boards_compat[] __initdata = { 154 "ti,am33xx", 155 NULL, 156 }; 157 158 DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)") 159 .reserve = omap_reserve, 160 .map_io = am33xx_map_io, 161 .init_early = am33xx_init_early, 162 .init_irq = omap_intc_of_init, 163 .handle_irq = omap3_intc_handle_irq, 164 .init_machine = omap_generic_init, 165 .init_time = omap3_gptimer_timer_init, 166 .dt_compat = am33xx_boards_compat, 167 .restart = am33xx_restart, 168 MACHINE_END 169 #endif 170 171 #ifdef CONFIG_ARCH_OMAP4 172 static const char *omap4_boards_compat[] __initdata = { 173 "ti,omap4", 174 NULL, 175 }; 176 177 DT_MACHINE_START(OMAP4_DT, "Generic OMAP4 (Flattened Device Tree)") 178 .reserve = omap_reserve, 179 .smp = smp_ops(omap4_smp_ops), 180 .map_io = omap4_map_io, 181 .init_early = omap4430_init_early, 182 .init_irq = omap_gic_of_init, 183 .init_machine = omap_generic_init, 184 .init_late = omap4430_init_late, 185 .init_time = omap4_local_timer_init, 186 .dt_compat = omap4_boards_compat, 187 .restart = omap44xx_restart, 188 MACHINE_END 189 #endif 190 191 #ifdef CONFIG_SOC_OMAP5 192 static const char *omap5_boards_compat[] __initdata = { 193 "ti,omap5", 194 NULL, 195 }; 196 197 DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)") 198 .reserve = omap_reserve, 199 .smp = smp_ops(omap4_smp_ops), 200 .map_io = omap5_map_io, 201 .init_early = omap5_init_early, 202 .init_irq = omap_gic_of_init, 203 .init_machine = omap_generic_init, 204 .init_time = omap5_realtime_timer_init, 205 .dt_compat = omap5_boards_compat, 206 .restart = omap44xx_restart, 207 MACHINE_END 208 #endif 209 210 #ifdef CONFIG_SOC_AM43XX 211 static const char *am43_boards_compat[] __initdata = { 212 "ti,am43", 213 NULL, 214 }; 215 216 DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)") 217 .map_io = am33xx_map_io, 218 .init_early = am43xx_init_early, 219 .init_irq = omap_gic_of_init, 220 .init_machine = omap_generic_init, 221 .init_time = omap3_sync32k_timer_init, 222 .dt_compat = am43_boards_compat, 223 MACHINE_END 224 #endif 225