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9b6553cd | 1 | /* |
f30c2269 | 2 | * linux/arch/arm/mach-omap2/board-apollon.c |
9b6553cd TL |
3 | * |
4 | * Copyright (C) 2005,2006 Samsung Electronics | |
5 | * Author: Kyungmin Park <kyungmin.park@samsung.com> | |
6 | * | |
7 | * Modified from mach-omap/omap2/board-h4.c | |
8 | * | |
9 | * Code for apollon OMAP2 board. Should work on many OMAP2 systems where | |
10 | * the bootloader passes the board-specific data to the kernel. | |
11 | * Do not put any board specific code to this file; create a new machine | |
12 | * type if you need custom low-level initializations. | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License version 2 as | |
16 | * published by the Free Software Foundation. | |
17 | */ | |
18 | ||
19 | #include <linux/kernel.h> | |
20 | #include <linux/init.h> | |
21 | #include <linux/platform_device.h> | |
22 | #include <linux/mtd/mtd.h> | |
23 | #include <linux/mtd/partitions.h> | |
24 | #include <linux/mtd/onenand.h> | |
25 | #include <linux/interrupt.h> | |
26 | #include <linux/delay.h> | |
27 | ||
28 | #include <asm/hardware.h> | |
29 | #include <asm/mach-types.h> | |
30 | #include <asm/mach/arch.h> | |
31 | #include <asm/mach/flash.h> | |
32 | ||
33 | #include <asm/arch/gpio.h> | |
34 | #include <asm/arch/mux.h> | |
35 | #include <asm/arch/usb.h> | |
36 | #include <asm/arch/board.h> | |
37 | #include <asm/arch/common.h> | |
38 | #include "prcm-regs.h" | |
39 | ||
40 | /* LED & Switch macros */ | |
41 | #define LED0_GPIO13 13 | |
42 | #define LED1_GPIO14 14 | |
43 | #define LED2_GPIO15 15 | |
44 | #define SW_ENTER_GPIO16 16 | |
45 | #define SW_UP_GPIO17 17 | |
46 | #define SW_DOWN_GPIO58 58 | |
47 | ||
48 | static struct mtd_partition apollon_partitions[] = { | |
49 | { | |
50 | .name = "X-Loader + U-Boot", | |
51 | .offset = 0, | |
52 | .size = SZ_128K, | |
53 | .mask_flags = MTD_WRITEABLE, | |
54 | }, | |
55 | { | |
56 | .name = "params", | |
57 | .offset = MTDPART_OFS_APPEND, | |
58 | .size = SZ_128K, | |
59 | }, | |
60 | { | |
61 | .name = "kernel", | |
62 | .offset = MTDPART_OFS_APPEND, | |
63 | .size = SZ_2M, | |
64 | }, | |
65 | { | |
66 | .name = "rootfs", | |
67 | .offset = MTDPART_OFS_APPEND, | |
68 | .size = SZ_16M, | |
69 | }, | |
70 | { | |
71 | .name = "filesystem00", | |
72 | .offset = MTDPART_OFS_APPEND, | |
73 | .size = SZ_32M, | |
74 | }, | |
75 | { | |
76 | .name = "filesystem01", | |
77 | .offset = MTDPART_OFS_APPEND, | |
78 | .size = MTDPART_SIZ_FULL, | |
79 | }, | |
80 | }; | |
81 | ||
82 | static struct flash_platform_data apollon_flash_data = { | |
83 | .parts = apollon_partitions, | |
84 | .nr_parts = ARRAY_SIZE(apollon_partitions), | |
85 | }; | |
86 | ||
87 | static struct resource apollon_flash_resource = { | |
88 | .start = APOLLON_CS0_BASE, | |
89 | .end = APOLLON_CS0_BASE + SZ_128K, | |
90 | .flags = IORESOURCE_MEM, | |
91 | }; | |
92 | ||
93 | static struct platform_device apollon_onenand_device = { | |
94 | .name = "onenand", | |
95 | .id = -1, | |
96 | .dev = { | |
97 | .platform_data = &apollon_flash_data, | |
98 | }, | |
99 | .num_resources = ARRAY_SIZE(&apollon_flash_resource), | |
100 | .resource = &apollon_flash_resource, | |
101 | }; | |
102 | ||
103 | static struct resource apollon_smc91x_resources[] = { | |
104 | [0] = { | |
105 | .start = APOLLON_ETHR_START, /* Physical */ | |
106 | .end = APOLLON_ETHR_START + 0xf, | |
107 | .flags = IORESOURCE_MEM, | |
108 | }, | |
109 | [1] = { | |
110 | .start = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ), | |
111 | .end = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ), | |
112 | .flags = IORESOURCE_IRQ, | |
113 | }, | |
114 | }; | |
115 | ||
116 | static struct platform_device apollon_smc91x_device = { | |
117 | .name = "smc91x", | |
118 | .id = -1, | |
119 | .num_resources = ARRAY_SIZE(apollon_smc91x_resources), | |
120 | .resource = apollon_smc91x_resources, | |
121 | }; | |
122 | ||
123 | static struct platform_device apollon_lcd_device = { | |
124 | .name = "apollon_lcd", | |
125 | .id = -1, | |
126 | }; | |
127 | ||
128 | static struct platform_device *apollon_devices[] __initdata = { | |
129 | &apollon_onenand_device, | |
130 | &apollon_smc91x_device, | |
131 | &apollon_lcd_device, | |
132 | }; | |
133 | ||
134 | static inline void __init apollon_init_smc91x(void) | |
135 | { | |
136 | /* Make sure CS1 timings are correct */ | |
137 | GPMC_CONFIG1_1 = 0x00011203; | |
138 | GPMC_CONFIG2_1 = 0x001f1f01; | |
139 | GPMC_CONFIG3_1 = 0x00080803; | |
140 | GPMC_CONFIG4_1 = 0x1c091c09; | |
141 | GPMC_CONFIG5_1 = 0x041f1f1f; | |
142 | GPMC_CONFIG6_1 = 0x000004c4; | |
143 | GPMC_CONFIG7_1 = 0x00000f40 | (APOLLON_CS1_BASE >> 24); | |
144 | udelay(100); | |
145 | ||
146 | omap_cfg_reg(W4__24XX_GPIO74); | |
147 | if (omap_request_gpio(APOLLON_ETHR_GPIO_IRQ) < 0) { | |
148 | printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n", | |
149 | APOLLON_ETHR_GPIO_IRQ); | |
150 | return; | |
151 | } | |
152 | omap_set_gpio_direction(APOLLON_ETHR_GPIO_IRQ, 1); | |
153 | } | |
154 | ||
155 | static void __init omap_apollon_init_irq(void) | |
156 | { | |
157 | omap2_init_common_hw(); | |
158 | omap_init_irq(); | |
159 | omap_gpio_init(); | |
160 | apollon_init_smc91x(); | |
161 | } | |
162 | ||
163 | static struct omap_uart_config apollon_uart_config __initdata = { | |
164 | .enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2), | |
165 | }; | |
166 | ||
167 | static struct omap_mmc_config apollon_mmc_config __initdata = { | |
168 | .mmc [0] = { | |
abc45e1d KP |
169 | .enabled = 1, |
170 | .wire4 = 1, | |
9b6553cd TL |
171 | .wp_pin = -1, |
172 | .power_pin = -1, | |
173 | .switch_pin = -1, | |
174 | }, | |
175 | }; | |
176 | ||
177 | static struct omap_lcd_config apollon_lcd_config __initdata = { | |
178 | .ctrl_name = "internal", | |
179 | }; | |
180 | ||
181 | static struct omap_board_config_kernel apollon_config[] = { | |
182 | { OMAP_TAG_UART, &apollon_uart_config }, | |
183 | { OMAP_TAG_MMC, &apollon_mmc_config }, | |
184 | { OMAP_TAG_LCD, &apollon_lcd_config }, | |
185 | }; | |
186 | ||
187 | static void __init apollon_led_init(void) | |
188 | { | |
189 | /* LED0 - AA10 */ | |
190 | omap_cfg_reg(AA10_242X_GPIO13); | |
191 | omap_request_gpio(LED0_GPIO13); | |
192 | omap_set_gpio_direction(LED0_GPIO13, 0); | |
193 | omap_set_gpio_dataout(LED0_GPIO13, 0); | |
194 | /* LED1 - AA6 */ | |
195 | omap_cfg_reg(AA6_242X_GPIO14); | |
196 | omap_request_gpio(LED1_GPIO14); | |
197 | omap_set_gpio_direction(LED1_GPIO14, 0); | |
198 | omap_set_gpio_dataout(LED1_GPIO14, 0); | |
199 | /* LED2 - AA4 */ | |
200 | omap_cfg_reg(AA4_242X_GPIO15); | |
201 | omap_request_gpio(LED2_GPIO15); | |
202 | omap_set_gpio_direction(LED2_GPIO15, 0); | |
203 | omap_set_gpio_dataout(LED2_GPIO15, 0); | |
204 | } | |
205 | ||
206 | static irqreturn_t apollon_sw_interrupt(int irq, void *ignored, struct pt_regs *regs) | |
207 | { | |
208 | static unsigned int led0, led1, led2; | |
209 | ||
210 | if (irq == OMAP_GPIO_IRQ(SW_ENTER_GPIO16)) | |
211 | omap_set_gpio_dataout(LED0_GPIO13, led0 ^= 1); | |
212 | else if (irq == OMAP_GPIO_IRQ(SW_UP_GPIO17)) | |
213 | omap_set_gpio_dataout(LED1_GPIO14, led1 ^= 1); | |
214 | else if (irq == OMAP_GPIO_IRQ(SW_DOWN_GPIO58)) | |
215 | omap_set_gpio_dataout(LED2_GPIO15, led2 ^= 1); | |
216 | ||
217 | return IRQ_HANDLED; | |
218 | } | |
219 | ||
220 | static void __init apollon_sw_init(void) | |
221 | { | |
222 | /* Enter SW - Y11 */ | |
223 | omap_cfg_reg(Y11_242X_GPIO16); | |
224 | omap_request_gpio(SW_ENTER_GPIO16); | |
225 | omap_set_gpio_direction(SW_ENTER_GPIO16, 1); | |
226 | /* Up SW - AA12 */ | |
227 | omap_cfg_reg(AA12_242X_GPIO17); | |
228 | omap_request_gpio(SW_UP_GPIO17); | |
229 | omap_set_gpio_direction(SW_UP_GPIO17, 1); | |
230 | /* Down SW - AA8 */ | |
231 | omap_cfg_reg(AA8_242X_GPIO58); | |
232 | omap_request_gpio(SW_DOWN_GPIO58); | |
233 | omap_set_gpio_direction(SW_DOWN_GPIO58, 1); | |
234 | ||
235 | set_irq_type(OMAP_GPIO_IRQ(SW_ENTER_GPIO16), IRQT_RISING); | |
236 | if (request_irq(OMAP_GPIO_IRQ(SW_ENTER_GPIO16), &apollon_sw_interrupt, | |
52e405ea | 237 | IRQF_SHARED, "enter sw", |
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238 | &apollon_sw_interrupt)) |
239 | return; | |
240 | set_irq_type(OMAP_GPIO_IRQ(SW_UP_GPIO17), IRQT_RISING); | |
241 | if (request_irq(OMAP_GPIO_IRQ(SW_UP_GPIO17), &apollon_sw_interrupt, | |
52e405ea | 242 | IRQF_SHARED, "up sw", |
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243 | &apollon_sw_interrupt)) |
244 | return; | |
245 | set_irq_type(OMAP_GPIO_IRQ(SW_DOWN_GPIO58), IRQT_RISING); | |
246 | if (request_irq(OMAP_GPIO_IRQ(SW_DOWN_GPIO58), &apollon_sw_interrupt, | |
52e405ea | 247 | IRQF_SHARED, "down sw", |
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248 | &apollon_sw_interrupt)) |
249 | return; | |
250 | } | |
251 | ||
252 | static void __init omap_apollon_init(void) | |
253 | { | |
254 | apollon_led_init(); | |
255 | apollon_sw_init(); | |
256 | ||
257 | /* REVISIT: where's the correct place */ | |
258 | omap_cfg_reg(W19_24XX_SYS_NIRQ); | |
259 | ||
abc45e1d KP |
260 | /* Use Interal loop-back in MMC/SDIO Module Input Clock selection */ |
261 | CONTROL_DEVCONF |= (1 << 24); | |
262 | ||
9b6553cd TL |
263 | /* |
264 | * Make sure the serial ports are muxed on at this point. | |
265 | * You have to mux them off in device drivers later on | |
266 | * if not needed. | |
267 | */ | |
268 | platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices)); | |
269 | omap_board_config = apollon_config; | |
270 | omap_board_config_size = ARRAY_SIZE(apollon_config); | |
271 | omap_serial_init(); | |
272 | } | |
273 | ||
274 | static void __init omap_apollon_map_io(void) | |
275 | { | |
276 | omap2_map_common_io(); | |
277 | } | |
278 | ||
279 | MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon") | |
280 | /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */ | |
281 | .phys_io = 0x48000000, | |
282 | .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, | |
283 | .boot_params = 0x80000100, | |
284 | .map_io = omap_apollon_map_io, | |
285 | .init_irq = omap_apollon_init_irq, | |
286 | .init_machine = omap_apollon_init, | |
287 | .timer = &omap_timer, | |
288 | MACHINE_END |