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/config.h> 13 #include <linux/module.h> 14 #include <linux/kernel.h> 15 #include <linux/init.h> 16 #include <linux/platform_device.h> 17 18 #include <asm/hardware.h> 19 #include <asm/io.h> 20 #include <asm/mach-types.h> 21 #include <asm/mach/map.h> 22 23 #include <asm/arch/tc.h> 24 #include <asm/arch/board.h> 25 #include <asm/arch/mux.h> 26 #include <asm/arch/gpio.h> 27 28 #if defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE) 29 30 #define OMAP2_I2C_BASE2 0x48072000 31 #define OMAP2_I2C_INT2 57 32 33 static struct resource i2c_resources2[] = { 34 { 35 .start = OMAP2_I2C_BASE2, 36 .end = OMAP2_I2C_BASE2 + 0x3f, 37 .flags = IORESOURCE_MEM, 38 }, 39 { 40 .start = OMAP2_I2C_INT2, 41 .flags = IORESOURCE_IRQ, 42 }, 43 }; 44 45 static struct platform_device omap_i2c_device2 = { 46 .name = "i2c_omap", 47 .id = 2, 48 .num_resources = ARRAY_SIZE(i2c_resources2), 49 .resource = i2c_resources2, 50 }; 51 52 /* See also arch/arm/plat-omap/devices.c for first I2C on 24xx */ 53 static void omap_init_i2c(void) 54 { 55 /* REVISIT: Second I2C not in use on H4? */ 56 if (machine_is_omap_h4()) 57 return; 58 59 omap_cfg_reg(J15_24XX_I2C2_SCL); 60 omap_cfg_reg(H19_24XX_I2C2_SDA); 61 (void) platform_device_register(&omap_i2c_device2); 62 } 63 64 #else 65 66 static void omap_init_i2c(void) {} 67 68 #endif 69 70 #if defined(CONFIG_OMAP_STI) 71 72 #define OMAP2_STI_BASE IO_ADDRESS(0x48068000) 73 #define OMAP2_STI_CHANNEL_BASE 0x54000000 74 #define OMAP2_STI_IRQ 4 75 76 static struct resource sti_resources[] = { 77 { 78 .start = OMAP2_STI_BASE, 79 .end = OMAP2_STI_BASE + 0x7ff, 80 .flags = IORESOURCE_MEM, 81 }, 82 { 83 .start = OMAP2_STI_CHANNEL_BASE, 84 .end = OMAP2_STI_CHANNEL_BASE + SZ_64K - 1, 85 .flags = IORESOURCE_MEM, 86 }, 87 { 88 .start = OMAP2_STI_IRQ, 89 .flags = IORESOURCE_IRQ, 90 } 91 }; 92 93 static struct platform_device sti_device = { 94 .name = "sti", 95 .id = -1, 96 .num_resources = ARRAY_SIZE(sti_resources), 97 .resource = sti_resources, 98 }; 99 100 static inline void omap_init_sti(void) 101 { 102 platform_device_register(&sti_device); 103 } 104 #else 105 static inline void omap_init_sti(void) {} 106 #endif 107 108 /*-------------------------------------------------------------------------*/ 109 110 static int __init omap2_init_devices(void) 111 { 112 /* please keep these calls, and their implementations above, 113 * in alphabetical order so they're easier to sort through. 114 */ 115 omap_init_i2c(); 116 omap_init_sti(); 117 118 return 0; 119 } 120 arch_initcall(omap2_init_devices); 121 122