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 omap_cfg_reg(J15_24XX_I2C2_SCL); 59 omap_cfg_reg(H19_24XX_I2C2_SDA); 60 (void) platform_device_register(&omap_i2c_device2); 61 } 62 63 #else 64 65 static void omap_init_i2c(void) {} 66 67 #endif 68 69 #if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE) 70 #define OMAP2_MBOX_BASE IO_ADDRESS(OMAP24XX_MAILBOX_BASE) 71 72 static struct resource mbox_resources[] = { 73 { 74 .start = OMAP2_MBOX_BASE, 75 .end = OMAP2_MBOX_BASE + 0x11f, 76 .flags = IORESOURCE_MEM, 77 }, 78 { 79 .start = INT_24XX_MAIL_U0_MPU, 80 .flags = IORESOURCE_IRQ, 81 }, 82 { 83 .start = INT_24XX_MAIL_U3_MPU, 84 .flags = IORESOURCE_IRQ, 85 }, 86 }; 87 88 static struct platform_device mbox_device = { 89 .name = "mailbox", 90 .id = -1, 91 .num_resources = ARRAY_SIZE(mbox_resources), 92 .resource = mbox_resources, 93 }; 94 95 static inline void omap_init_mbox(void) 96 { 97 platform_device_register(&mbox_device); 98 } 99 #else 100 static inline void omap_init_mbox(void) { } 101 #endif 102 103 #if defined(CONFIG_OMAP_STI) 104 105 #define OMAP2_STI_BASE IO_ADDRESS(0x48068000) 106 #define OMAP2_STI_CHANNEL_BASE 0x54000000 107 #define OMAP2_STI_IRQ 4 108 109 static struct resource sti_resources[] = { 110 { 111 .start = OMAP2_STI_BASE, 112 .end = OMAP2_STI_BASE + 0x7ff, 113 .flags = IORESOURCE_MEM, 114 }, 115 { 116 .start = OMAP2_STI_CHANNEL_BASE, 117 .end = OMAP2_STI_CHANNEL_BASE + SZ_64K - 1, 118 .flags = IORESOURCE_MEM, 119 }, 120 { 121 .start = OMAP2_STI_IRQ, 122 .flags = IORESOURCE_IRQ, 123 } 124 }; 125 126 static struct platform_device sti_device = { 127 .name = "sti", 128 .id = -1, 129 .num_resources = ARRAY_SIZE(sti_resources), 130 .resource = sti_resources, 131 }; 132 133 static inline void omap_init_sti(void) 134 { 135 platform_device_register(&sti_device); 136 } 137 #else 138 static inline void omap_init_sti(void) {} 139 #endif 140 141 #if defined(CONFIG_SPI_OMAP24XX) 142 143 #include <asm/arch/mcspi.h> 144 145 #define OMAP2_MCSPI1_BASE 0x48098000 146 #define OMAP2_MCSPI2_BASE 0x4809a000 147 148 static struct omap2_mcspi_platform_config omap2_mcspi1_config = { 149 .num_cs = 4, 150 }; 151 152 static struct resource omap2_mcspi1_resources[] = { 153 { 154 .start = OMAP2_MCSPI1_BASE, 155 .end = OMAP2_MCSPI1_BASE + 0xff, 156 .flags = IORESOURCE_MEM, 157 }, 158 }; 159 160 struct platform_device omap2_mcspi1 = { 161 .name = "omap2_mcspi", 162 .id = 1, 163 .num_resources = ARRAY_SIZE(omap2_mcspi1_resources), 164 .resource = omap2_mcspi1_resources, 165 .dev = { 166 .platform_data = &omap2_mcspi1_config, 167 }, 168 }; 169 170 static struct omap2_mcspi_platform_config omap2_mcspi2_config = { 171 .num_cs = 2, 172 }; 173 174 static struct resource omap2_mcspi2_resources[] = { 175 { 176 .start = OMAP2_MCSPI2_BASE, 177 .end = OMAP2_MCSPI2_BASE + 0xff, 178 .flags = IORESOURCE_MEM, 179 }, 180 }; 181 182 struct platform_device omap2_mcspi2 = { 183 .name = "omap2_mcspi", 184 .id = 2, 185 .num_resources = ARRAY_SIZE(omap2_mcspi2_resources), 186 .resource = omap2_mcspi2_resources, 187 .dev = { 188 .platform_data = &omap2_mcspi2_config, 189 }, 190 }; 191 192 static void omap_init_mcspi(void) 193 { 194 platform_device_register(&omap2_mcspi1); 195 platform_device_register(&omap2_mcspi2); 196 } 197 198 #else 199 static inline void omap_init_mcspi(void) {} 200 #endif 201 202 /*-------------------------------------------------------------------------*/ 203 204 static int __init omap2_init_devices(void) 205 { 206 /* please keep these calls, and their implementations above, 207 * in alphabetical order so they're easier to sort through. 208 */ 209 omap_init_i2c(); 210 omap_init_mbox(); 211 omap_init_mcspi(); 212 omap_init_sti(); 213 214 return 0; 215 } 216 arch_initcall(omap2_init_devices); 217