This source file includes following definitions.
- gumstix_mmc_init
- gumstix_mmc_init
- gumstix_udc_init
- gumstix_udc_init
- gumstix_setup_bt_clock
- gumstix_bluetooth_init
- gumstix_bluetooth_init
- am200_init
- am300_init
- carrier_board_init
- gumstix_init
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15 #include <linux/module.h>
16 #include <linux/kernel.h>
17 #include <linux/init.h>
18 #include <linux/platform_device.h>
19 #include <linux/interrupt.h>
20 #include <linux/delay.h>
21 #include <linux/mtd/mtd.h>
22 #include <linux/mtd/partitions.h>
23 #include <linux/gpio.h>
24 #include <linux/err.h>
25 #include <linux/clk.h>
26 #include <linux/usb/gpio_vbus.h>
27
28 #include <asm/setup.h>
29 #include <asm/memory.h>
30 #include <asm/mach-types.h>
31 #include <mach/hardware.h>
32 #include <asm/irq.h>
33 #include <linux/sizes.h>
34
35 #include <asm/mach/arch.h>
36 #include <asm/mach/map.h>
37 #include <asm/mach/irq.h>
38 #include <asm/mach/flash.h>
39
40 #include "pxa25x.h"
41 #include <linux/platform_data/mmc-pxamci.h>
42 #include "udc.h"
43 #include "gumstix.h"
44
45 #include "generic.h"
46
47 static struct resource flash_resource = {
48 .start = 0x00000000,
49 .end = SZ_64M - 1,
50 .flags = IORESOURCE_MEM,
51 };
52
53 static struct mtd_partition gumstix_partitions[] = {
54 {
55 .name = "Bootloader",
56 .size = 0x00040000,
57 .offset = 0,
58 .mask_flags = MTD_WRITEABLE
59 } , {
60 .name = "rootfs",
61 .size = MTDPART_SIZ_FULL,
62 .offset = MTDPART_OFS_APPEND
63 }
64 };
65
66 static struct flash_platform_data gumstix_flash_data = {
67 .map_name = "cfi_probe",
68 .parts = gumstix_partitions,
69 .nr_parts = ARRAY_SIZE(gumstix_partitions),
70 .width = 2,
71 };
72
73 static struct platform_device gumstix_flash_device = {
74 .name = "pxa2xx-flash",
75 .id = 0,
76 .dev = {
77 .platform_data = &gumstix_flash_data,
78 },
79 .resource = &flash_resource,
80 .num_resources = 1,
81 };
82
83 static struct platform_device *devices[] __initdata = {
84 &gumstix_flash_device,
85 };
86
87 #ifdef CONFIG_MMC_PXA
88 static struct pxamci_platform_data gumstix_mci_platform_data = {
89 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
90 };
91
92 static void __init gumstix_mmc_init(void)
93 {
94 pxa_set_mci_info(&gumstix_mci_platform_data);
95 }
96 #else
97 static void __init gumstix_mmc_init(void)
98 {
99 pr_debug("Gumstix mmc disabled\n");
100 }
101 #endif
102
103 #ifdef CONFIG_USB_PXA25X
104 static struct gpio_vbus_mach_info gumstix_udc_info = {
105 .gpio_vbus = GPIO_GUMSTIX_USB_GPIOn,
106 .gpio_pullup = GPIO_GUMSTIX_USB_GPIOx,
107 };
108
109 static struct platform_device gumstix_gpio_vbus = {
110 .name = "gpio-vbus",
111 .id = -1,
112 .dev = {
113 .platform_data = &gumstix_udc_info,
114 },
115 };
116
117 static void __init gumstix_udc_init(void)
118 {
119 platform_device_register(&gumstix_gpio_vbus);
120 }
121 #else
122 static void gumstix_udc_init(void)
123 {
124 pr_debug("Gumstix udc is disabled\n");
125 }
126 #endif
127
128 #ifdef CONFIG_BT
129
130
131
132 static void gumstix_setup_bt_clock(void)
133 {
134 int timeout = 500;
135
136 if (!(readl(OSCC) & OSCC_OOK))
137 pr_warn("32kHz clock was not on. Bootloader may need to be updated\n");
138 else
139 return;
140
141 writel(readl(OSCC) | OSCC_OON, OSCC);
142 do {
143 if (readl(OSCC) & OSCC_OOK)
144 break;
145 udelay(1);
146 } while (--timeout);
147 if (!timeout)
148 pr_err("Failed to start 32kHz clock\n");
149 }
150
151 static void __init gumstix_bluetooth_init(void)
152 {
153 int err;
154
155 gumstix_setup_bt_clock();
156
157 err = gpio_request(GPIO_GUMSTIX_BTRESET, "BTRST");
158 if (err) {
159 pr_err("gumstix: failed request gpio for bluetooth reset\n");
160 return;
161 }
162
163 err = gpio_direction_output(GPIO_GUMSTIX_BTRESET, 1);
164 if (err) {
165 pr_err("gumstix: can't reset bluetooth\n");
166 return;
167 }
168 gpio_set_value(GPIO_GUMSTIX_BTRESET, 0);
169 udelay(100);
170 gpio_set_value(GPIO_GUMSTIX_BTRESET, 1);
171 }
172 #else
173 static void gumstix_bluetooth_init(void)
174 {
175 pr_debug("Gumstix Bluetooth is disabled\n");
176 }
177 #endif
178
179 static unsigned long gumstix_pin_config[] __initdata = {
180 GPIO12_32KHz,
181
182 GPIO42_HWUART_RXD,
183 GPIO43_HWUART_TXD,
184 GPIO44_HWUART_CTS,
185 GPIO45_HWUART_RTS,
186
187 GPIO6_MMC_CLK,
188 GPIO53_MMC_CLK,
189 GPIO8_MMC_CS0,
190 };
191
192 int __attribute__((weak)) am200_init(void)
193 {
194 return 0;
195 }
196
197 int __attribute__((weak)) am300_init(void)
198 {
199 return 0;
200 }
201
202 static void __init carrier_board_init(void)
203 {
204
205
206
207
208 am200_init();
209 am300_init();
210 }
211
212 static void __init gumstix_init(void)
213 {
214 pxa2xx_mfp_config(ARRAY_AND_SIZE(gumstix_pin_config));
215
216 pxa_set_ffuart_info(NULL);
217 pxa_set_btuart_info(NULL);
218 pxa_set_stuart_info(NULL);
219 pxa_set_hwuart_info(NULL);
220
221 gumstix_bluetooth_init();
222 gumstix_udc_init();
223 gumstix_mmc_init();
224 (void) platform_add_devices(devices, ARRAY_SIZE(devices));
225 carrier_board_init();
226 }
227
228 MACHINE_START(GUMSTIX, "Gumstix")
229 .atag_offset = 0x100,
230 .map_io = pxa25x_map_io,
231 .nr_irqs = PXA_NR_IRQS,
232 .init_irq = pxa25x_init_irq,
233 .handle_irq = pxa25x_handle_irq,
234 .init_time = pxa_timer_init,
235 .init_machine = gumstix_init,
236 .restart = pxa_restart,
237 MACHINE_END