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90b8fc34 JK |
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 |