Merge remote-tracking branch 'moduleh/module.h-split'
[linux-2.6/next.git] / arch / arm / mach-omap2 / board-apollon.c
blob67800e647d7a888799316bb2a68f3340cbe155da
1 /*
2 * linux/arch/arm/mach-omap2/board-apollon.c
4 * Copyright (C) 2005,2006 Samsung Electronics
5 * Author: Kyungmin Park <kyungmin.park@samsung.com>
7 * Modified from mach-omap/omap2/board-h4.c
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.
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.
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/delay.h>
26 #include <linux/leds.h>
27 #include <linux/err.h>
28 #include <linux/clk.h>
29 #include <linux/smc91x.h>
30 #include <linux/gpio.h>
32 #include <mach/hardware.h>
33 #include <asm/mach-types.h>
34 #include <asm/mach/arch.h>
35 #include <asm/mach/flash.h>
37 #include <plat/led.h>
38 #include <plat/usb.h>
39 #include <plat/board.h>
40 #include <plat/common.h>
41 #include <plat/gpmc.h>
43 #include "mux.h"
44 #include "control.h"
46 /* LED & Switch macros */
47 #define LED0_GPIO13 13
48 #define LED1_GPIO14 14
49 #define LED2_GPIO15 15
50 #define SW_ENTER_GPIO16 16
51 #define SW_UP_GPIO17 17
52 #define SW_DOWN_GPIO58 58
54 #define APOLLON_FLASH_CS 0
55 #define APOLLON_ETH_CS 1
56 #define APOLLON_ETHR_GPIO_IRQ 74
58 static struct mtd_partition apollon_partitions[] = {
60 .name = "X-Loader + U-Boot",
61 .offset = 0,
62 .size = SZ_128K,
63 .mask_flags = MTD_WRITEABLE,
66 .name = "params",
67 .offset = MTDPART_OFS_APPEND,
68 .size = SZ_128K,
71 .name = "kernel",
72 .offset = MTDPART_OFS_APPEND,
73 .size = SZ_2M,
76 .name = "rootfs",
77 .offset = MTDPART_OFS_APPEND,
78 .size = SZ_16M,
81 .name = "filesystem00",
82 .offset = MTDPART_OFS_APPEND,
83 .size = SZ_32M,
86 .name = "filesystem01",
87 .offset = MTDPART_OFS_APPEND,
88 .size = MTDPART_SIZ_FULL,
92 static struct onenand_platform_data apollon_flash_data = {
93 .parts = apollon_partitions,
94 .nr_parts = ARRAY_SIZE(apollon_partitions),
97 static struct resource apollon_flash_resource[] = {
98 [0] = {
99 .flags = IORESOURCE_MEM,
103 static struct platform_device apollon_onenand_device = {
104 .name = "onenand-flash",
105 .id = -1,
106 .dev = {
107 .platform_data = &apollon_flash_data,
109 .num_resources = ARRAY_SIZE(apollon_flash_resource),
110 .resource = apollon_flash_resource,
113 static void __init apollon_flash_init(void)
115 unsigned long base;
117 if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) {
118 printk(KERN_ERR "Cannot request OneNAND GPMC CS\n");
119 return;
121 apollon_flash_resource[0].start = base;
122 apollon_flash_resource[0].end = base + SZ_128K - 1;
125 static struct smc91x_platdata appolon_smc91x_info = {
126 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
127 .leda = RPC_LED_100_10,
128 .ledb = RPC_LED_TX_RX,
131 static struct resource apollon_smc91x_resources[] = {
132 [0] = {
133 .flags = IORESOURCE_MEM,
135 [1] = {
136 .start = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
137 .end = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
138 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
142 static struct platform_device apollon_smc91x_device = {
143 .name = "smc91x",
144 .id = -1,
145 .dev = {
146 .platform_data = &appolon_smc91x_info,
148 .num_resources = ARRAY_SIZE(apollon_smc91x_resources),
149 .resource = apollon_smc91x_resources,
152 static struct platform_device apollon_lcd_device = {
153 .name = "apollon_lcd",
154 .id = -1,
157 static struct omap_led_config apollon_led_config[] = {
159 .cdev = {
160 .name = "apollon:led0",
162 .gpio = LED0_GPIO13,
165 .cdev = {
166 .name = "apollon:led1",
168 .gpio = LED1_GPIO14,
171 .cdev = {
172 .name = "apollon:led2",
174 .gpio = LED2_GPIO15,
178 static struct omap_led_platform_data apollon_led_data = {
179 .nr_leds = ARRAY_SIZE(apollon_led_config),
180 .leds = apollon_led_config,
183 static struct platform_device apollon_led_device = {
184 .name = "omap-led",
185 .id = -1,
186 .dev = {
187 .platform_data = &apollon_led_data,
191 static struct platform_device *apollon_devices[] __initdata = {
192 &apollon_onenand_device,
193 &apollon_smc91x_device,
194 &apollon_lcd_device,
195 &apollon_led_device,
198 static inline void __init apollon_init_smc91x(void)
200 unsigned long base;
202 unsigned int rate;
203 struct clk *gpmc_fck;
204 int eth_cs;
205 int err;
207 gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */
208 if (IS_ERR(gpmc_fck)) {
209 WARN_ON(1);
210 return;
213 clk_enable(gpmc_fck);
214 rate = clk_get_rate(gpmc_fck);
216 eth_cs = APOLLON_ETH_CS;
218 /* Make sure CS1 timings are correct */
219 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
221 if (rate >= 160000000) {
222 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
223 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
224 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
225 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
226 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
227 } else if (rate >= 130000000) {
228 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
229 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
230 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
231 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
232 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
233 } else {/* rate = 100000000 */
234 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
235 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
236 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
237 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
238 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
241 if (gpmc_cs_request(APOLLON_ETH_CS, SZ_16M, &base) < 0) {
242 printk(KERN_ERR "Failed to request GPMC CS for smc91x\n");
243 goto out;
245 apollon_smc91x_resources[0].start = base + 0x300;
246 apollon_smc91x_resources[0].end = base + 0x30f;
247 udelay(100);
249 omap_mux_init_gpio(APOLLON_ETHR_GPIO_IRQ, 0);
250 err = gpio_request_one(APOLLON_ETHR_GPIO_IRQ, GPIOF_IN, "SMC91x irq");
251 if (err) {
252 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
253 APOLLON_ETHR_GPIO_IRQ);
254 gpmc_cs_free(APOLLON_ETH_CS);
256 out:
257 clk_disable(gpmc_fck);
258 clk_put(gpmc_fck);
261 static struct omap_usb_config apollon_usb_config __initdata = {
262 .register_dev = 1,
263 .hmc_mode = 0x14, /* 0:dev 1:host1 2:disable */
265 .pins[0] = 6,
268 static struct omap_lcd_config apollon_lcd_config __initdata = {
269 .ctrl_name = "internal",
272 static struct omap_board_config_kernel apollon_config[] __initdata = {
273 { OMAP_TAG_LCD, &apollon_lcd_config },
276 static void __init omap_apollon_init_early(void)
278 omap2_init_common_infrastructure();
279 omap2_init_common_devices(NULL, NULL);
282 static struct gpio apollon_gpio_leds[] __initdata = {
283 { LED0_GPIO13, GPIOF_OUT_INIT_LOW, "LED0" }, /* LED0 - AA10 */
284 { LED1_GPIO14, GPIOF_OUT_INIT_LOW, "LED1" }, /* LED1 - AA6 */
285 { LED2_GPIO15, GPIOF_OUT_INIT_LOW, "LED2" }, /* LED2 - AA4 */
288 static void __init apollon_led_init(void)
290 omap_mux_init_signal("vlynq_clk.gpio_13", 0);
291 omap_mux_init_signal("vlynq_rx1.gpio_14", 0);
292 omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
294 gpio_request_array(apollon_gpio_leds, ARRAY_SIZE(apollon_gpio_leds));
297 static void __init apollon_usb_init(void)
299 /* USB device */
300 /* DEVICE_SUSPEND */
301 omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0);
302 gpio_request_one(12, GPIOF_OUT_INIT_LOW, "USB suspend");
303 omap2_usbfs_init(&apollon_usb_config);
306 #ifdef CONFIG_OMAP_MUX
307 static struct omap_board_mux board_mux[] __initdata = {
308 { .reg_offset = OMAP_MUX_TERMINATOR },
310 #endif
312 static void __init omap_apollon_init(void)
314 u32 v;
316 omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);
317 omap_board_config = apollon_config;
318 omap_board_config_size = ARRAY_SIZE(apollon_config);
320 apollon_init_smc91x();
321 apollon_led_init();
322 apollon_flash_init();
323 apollon_usb_init();
325 /* REVISIT: where's the correct place */
326 omap_mux_init_signal("sys_nirq", OMAP_PULL_ENA | OMAP_PULL_UP);
328 /* LCD PWR_EN */
329 omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
331 /* Use Interal loop-back in MMC/SDIO Module Input Clock selection */
332 v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
333 v |= (1 << 24);
334 omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
337 * Make sure the serial ports are muxed on at this point.
338 * You have to mux them off in device drivers later on
339 * if not needed.
341 platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
342 omap_serial_init();
345 static void __init omap_apollon_map_io(void)
347 omap2_set_globals_242x();
348 omap242x_map_common_io();
351 MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
352 /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
353 .atag_offset = 0x100,
354 .reserve = omap_reserve,
355 .map_io = omap_apollon_map_io,
356 .init_early = omap_apollon_init_early,
357 .init_irq = omap2_init_irq,
358 .init_machine = omap_apollon_init,
359 .timer = &omap2_timer,
360 MACHINE_END