| Jaya Kumar | 90b8fc3 | 2008-03-15 05:11:07 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * linux/arch/arm/mach-pxa/gumstix.c |
| 3 | * |
| 4 | * Support for the Gumstix motherboards. |
| 5 | * |
| 6 | * Original Author: Craig Hughes |
| 7 | * Created: Feb 14, 2008 |
| 8 | * Copyright: Craig Hughes |
| 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 | * Implemented based on lubbock.c by Nicolas Pitre and code from Craig |
| 15 | * Hughes |
| 16 | */ |
| 17 | |
| 18 | #include <linux/module.h> |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/init.h> |
| 21 | #include <linux/platform_device.h> |
| 22 | #include <linux/interrupt.h> |
| 23 | #include <linux/mtd/mtd.h> |
| 24 | #include <linux/mtd/partitions.h> |
| 25 | |
| 26 | #include <asm/setup.h> |
| 27 | #include <asm/memory.h> |
| 28 | #include <asm/mach-types.h> |
| 29 | #include <asm/hardware.h> |
| 30 | #include <asm/irq.h> |
| 31 | #include <asm/sizes.h> |
| 32 | |
| 33 | #include <asm/mach/arch.h> |
| 34 | #include <asm/mach/map.h> |
| 35 | #include <asm/mach/irq.h> |
| 36 | #include <asm/mach/flash.h> |
| 37 | #include <asm/arch/mmc.h> |
| 38 | #include <asm/arch/udc.h> |
| 39 | #include <asm/arch/gumstix.h> |
| 40 | |
| 41 | #include <asm/arch/pxa-regs.h> |
| 42 | #include <asm/arch/pxa2xx-regs.h> |
| 43 | |
| 44 | #include "generic.h" |
| 45 | |
| 46 | static struct resource flash_resource = { |
| 47 | .start = 0x00000000, |
| 48 | .end = SZ_64M - 1, |
| 49 | .flags = IORESOURCE_MEM, |
| 50 | }; |
| 51 | |
| 52 | static struct mtd_partition gumstix_partitions[] = { |
| 53 | { |
| 54 | .name = "Bootloader", |
| 55 | .size = 0x00040000, |
| 56 | .offset = 0, |
| 57 | .mask_flags = MTD_WRITEABLE /* force read-only */ |
| 58 | } , { |
| 59 | .name = "rootfs", |
| 60 | .size = MTDPART_SIZ_FULL, |
| 61 | .offset = MTDPART_OFS_APPEND |
| 62 | } |
| 63 | }; |
| 64 | |
| 65 | static struct flash_platform_data gumstix_flash_data = { |
| 66 | .map_name = "cfi_probe", |
| 67 | .parts = gumstix_partitions, |
| 68 | .nr_parts = ARRAY_SIZE(gumstix_partitions), |
| 69 | .width = 2, |
| 70 | }; |
| 71 | |
| 72 | static struct platform_device gumstix_flash_device = { |
| 73 | .name = "pxa2xx-flash", |
| 74 | .id = 0, |
| 75 | .dev = { |
| 76 | .platform_data = &gumstix_flash_data, |
| 77 | }, |
| 78 | .resource = &flash_resource, |
| 79 | .num_resources = 1, |
| 80 | }; |
| 81 | |
| 82 | static struct platform_device *devices[] __initdata = { |
| 83 | &gumstix_flash_device, |
| 84 | }; |
| 85 | |
| 86 | #ifdef CONFIG_MMC_PXA |
| 87 | static struct pxamci_platform_data gumstix_mci_platform_data; |
| 88 | |
| 89 | static int gumstix_mci_init(struct device *dev, irq_handler_t detect_int, |
| 90 | void *data) |
| 91 | { |
| 92 | pxa_gpio_mode(GPIO6_MMCCLK_MD); |
| 93 | pxa_gpio_mode(GPIO53_MMCCLK_MD); |
| 94 | pxa_gpio_mode(GPIO8_MMCCS0_MD); |
| 95 | |
| 96 | return 0; |
| 97 | } |
| 98 | |
| 99 | static struct pxamci_platform_data gumstix_mci_platform_data = { |
| 100 | .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, |
| 101 | .init = gumstix_mci_init, |
| 102 | }; |
| 103 | |
| 104 | static void __init gumstix_mmc_init(void) |
| 105 | { |
| 106 | pxa_set_mci_info(&gumstix_mci_platform_data); |
| 107 | } |
| 108 | #else |
| 109 | static void __init gumstix_mmc_init(void) |
| 110 | { |
| 111 | printk(KERN_INFO "Gumstix mmc disabled\n"); |
| 112 | } |
| 113 | #endif |
| 114 | |
| 115 | #ifdef CONFIG_USB_GADGET_PXA2XX |
| 116 | static struct pxa2xx_udc_mach_info gumstix_udc_info __initdata = { |
| 117 | .gpio_vbus = GPIO_GUMSTIX_USB_GPIOn, |
| 118 | .gpio_pullup = GPIO_GUMSTIX_USB_GPIOx, |
| 119 | }; |
| 120 | |
| 121 | static void __init gumstix_udc_init(void) |
| 122 | { |
| 123 | pxa_set_udc_info(&gumstix_udc_info); |
| 124 | } |
| 125 | #else |
| 126 | static void gumstix_udc_init(void) |
| 127 | { |
| 128 | printk(KERN_INFO "Gumstix udc is disabled\n"); |
| 129 | } |
| 130 | #endif |
| 131 | |
| 132 | static void __init gumstix_init(void) |
| 133 | { |
| 134 | gumstix_udc_init(); |
| 135 | gumstix_mmc_init(); |
| 136 | (void) platform_add_devices(devices, ARRAY_SIZE(devices)); |
| 137 | } |
| 138 | |
| 139 | MACHINE_START(GUMSTIX, "Gumstix") |
| 140 | .phys_io = 0x40000000, |
| 141 | .boot_params = 0xa0000100, /* match u-boot bi_boot_params */ |
| 142 | .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, |
| 143 | .map_io = pxa_map_io, |
| 144 | .init_irq = pxa25x_init_irq, |
| 145 | .timer = &pxa_timer, |
| 146 | .init_machine = gumstix_init, |
| 147 | MACHINE_END |