1 /* 2 * linux/arch/arm/mach-omap2/devices.c 3 * 4 * OMAP2 platform device setup/initialization 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 */ 11 12 #include <linux/module.h> 13 #include <linux/kernel.h> 14 #include <linux/init.h> 15 #include <linux/platform_device.h> 16 17 #include <asm/hardware.h> 18 #include <asm/io.h> 19 #include <asm/mach-types.h> 20 #include <asm/mach/map.h> 21 22 #include <asm/arch/tc.h> 23 #include <asm/arch/board.h> 24 #include <asm/arch/mux.h> 25 #include <asm/arch/gpio.h> 26 27 #if defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE) 28 29 #define OMAP2_I2C_BASE2 0x48072000 30 #define OMAP2_I2C_INT2 57 31 32 static struct resource i2c_resources2[] = { 33 { 34 .start = OMAP2_I2C_BASE2, 35 .end = OMAP2_I2C_BASE2 + 0x3f, 36 .flags = IORESOURCE_MEM, 37 }, 38 { 39 .start = OMAP2_I2C_INT2, 40 .flags = IORESOURCE_IRQ, 41 }, 42 }; 43 44 static struct platform_device omap_i2c_device2 = { 45 .name = "i2c_omap", 46 .id = 2, 47 .num_resources = ARRAY_SIZE(i2c_resources2), 48 .resource = i2c_resources2, 49 }; 50 51 /* See also arch/arm/plat-omap/devices.c for first I2C on 24xx */ 52 static void omap_init_i2c(void) 53 { 54 /* REVISIT: Second I2C not in use on H4? */ 55 if (machine_is_omap_h4()) 56 return; 57 58 if (!cpu_is_omap2430()) { 59 omap_cfg_reg(J15_24XX_I2C2_SCL); 60 omap_cfg_reg(H19_24XX_I2C2_SDA); 61 } 62 (void) platform_device_register(&omap_i2c_device2); 63 } 64 65 #else 66 67 static void omap_init_i2c(void) {} 68 69 #endif 70 71 #if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE) 72 #define OMAP2_MBOX_BASE IO_ADDRESS(OMAP24XX_MAILBOX_BASE) 73 74 static struct resource mbox_resources[] = { 75 { 76 .start = OMAP2_MBOX_BASE, 77 .end = OMAP2_MBOX_BASE + 0x11f, 78 .flags = IORESOURCE_MEM, 79 }, 80 { 81 .start = INT_24XX_MAIL_U0_MPU, 82 .flags = IORESOURCE_IRQ, 83 }, 84 { 85 .start = INT_24XX_MAIL_U3_MPU, 86 .flags = IORESOURCE_IRQ, 87 }, 88 }; 89 90 static struct platform_device mbox_device = { 91 .name = "mailbox", 92 .id = -1, 93 .num_resources = ARRAY_SIZE(mbox_resources), 94 .resource = mbox_resources, 95 }; 96 97 static inline void omap_init_mbox(void) 98 { 99 platform_device_register(&mbox_device); 100 } 101 #else 102 static inline void omap_init_mbox(void) { } 103 #endif 104 105 #if defined(CONFIG_OMAP_STI) 106 107 #define OMAP2_STI_BASE IO_ADDRESS(0x48068000) 108 #define OMAP2_STI_CHANNEL_BASE 0x54000000 109 #define OMAP2_STI_IRQ 4 110 111 static struct resource sti_resources[] = { 112 { 113 .start = OMAP2_STI_BASE, 114 .end = OMAP2_STI_BASE + 0x7ff, 115 .flags = IORESOURCE_MEM, 116 }, 117 { 118 .start = OMAP2_STI_CHANNEL_BASE, 119 .end = OMAP2_STI_CHANNEL_BASE + SZ_64K - 1, 120 .flags = IORESOURCE_MEM, 121 }, 122 { 123 .start = OMAP2_STI_IRQ, 124 .flags = IORESOURCE_IRQ, 125 } 126 }; 127 128 static struct platform_device sti_device = { 129 .name = "sti", 130 .id = -1, 131 .num_resources = ARRAY_SIZE(sti_resources), 132 .resource = sti_resources, 133 }; 134 135 static inline void omap_init_sti(void) 136 { 137 platform_device_register(&sti_device); 138 } 139 #else 140 static inline void omap_init_sti(void) {} 141 #endif 142 143 #if defined(CONFIG_SPI_OMAP24XX) 144 145 #include <asm/arch/mcspi.h> 146 147 #define OMAP2_MCSPI1_BASE 0x48098000 148 #define OMAP2_MCSPI2_BASE 0x4809a000 149 150 static struct omap2_mcspi_platform_config omap2_mcspi1_config = { 151 .num_cs = 4, 152 }; 153 154 static struct resource omap2_mcspi1_resources[] = { 155 { 156 .start = OMAP2_MCSPI1_BASE, 157 .end = OMAP2_MCSPI1_BASE + 0xff, 158 .flags = IORESOURCE_MEM, 159 }, 160 }; 161 162 struct platform_device omap2_mcspi1 = { 163 .name = "omap2_mcspi", 164 .id = 1, 165 .num_resources = ARRAY_SIZE(omap2_mcspi1_resources), 166 .resource = omap2_mcspi1_resources, 167 .dev = { 168 .platform_data = &omap2_mcspi1_config, 169 }, 170 }; 171 172 static struct omap2_mcspi_platform_config omap2_mcspi2_config = { 173 .num_cs = 2, 174 }; 175 176 static struct resource omap2_mcspi2_resources[] = { 177 { 178 .start = OMAP2_MCSPI2_BASE, 179 .end = OMAP2_MCSPI2_BASE + 0xff, 180 .flags = IORESOURCE_MEM, 181 }, 182 }; 183 184 struct platform_device omap2_mcspi2 = { 185 .name = "omap2_mcspi", 186 .id = 2, 187 .num_resources = ARRAY_SIZE(omap2_mcspi2_resources), 188 .resource = omap2_mcspi2_resources, 189 .dev = { 190 .platform_data = &omap2_mcspi2_config, 191 }, 192 }; 193 194 static void omap_init_mcspi(void) 195 { 196 platform_device_register(&omap2_mcspi1); 197 platform_device_register(&omap2_mcspi2); 198 } 199 200 #else 201 static inline void omap_init_mcspi(void) {} 202 #endif 203 204 /*-------------------------------------------------------------------------*/ 205 206 static int __init omap2_init_devices(void) 207 { 208 /* please keep these calls, and their implementations above, 209 * in alphabetical order so they're easier to sort through. 210 */ 211 omap_init_i2c(); 212 omap_init_mbox(); 213 omap_init_mcspi(); 214 omap_init_sti(); 215 216 return 0; 217 } 218 arch_initcall(omap2_init_devices); 219