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 extern void omap_nop_release(struct device *dev); 29 30 /*-------------------------------------------------------------------------*/ 31 32 #if defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE) 33 34 #define OMAP2_I2C_BASE2 0x48072000 35 #define OMAP2_I2C_INT2 57 36 37 static struct resource i2c_resources2[] = { 38 { 39 .start = OMAP2_I2C_BASE2, 40 .end = OMAP2_I2C_BASE2 + 0x3f, 41 .flags = IORESOURCE_MEM, 42 }, 43 { 44 .start = OMAP2_I2C_INT2, 45 .flags = IORESOURCE_IRQ, 46 }, 47 }; 48 49 static struct platform_device omap_i2c_device2 = { 50 .name = "i2c_omap", 51 .id = 2, 52 .dev = { 53 .release = omap_nop_release, 54 }, 55 .num_resources = ARRAY_SIZE(i2c_resources2), 56 .resource = i2c_resources2, 57 }; 58 59 /* See also arch/arm/plat-omap/devices.c for first I2C on 24xx */ 60 static void omap_init_i2c(void) 61 { 62 /* REVISIT: Second I2C not in use on H4? */ 63 if (machine_is_omap_h4()) 64 return; 65 66 omap_cfg_reg(J15_24XX_I2C2_SCL); 67 omap_cfg_reg(H19_24XX_I2C2_SDA); 68 (void) platform_device_register(&omap_i2c_device2); 69 } 70 71 #else 72 73 static void omap_init_i2c(void) {} 74 75 #endif 76 77 /*-------------------------------------------------------------------------*/ 78 79 static int __init omap2_init_devices(void) 80 { 81 /* please keep these calls, and their implementations above, 82 * in alphabetical order so they're easier to sort through. 83 */ 84 omap_init_i2c(); 85 86 return 0; 87 } 88 arch_initcall(omap2_init_devices); 89 90