1 /*
2 * linux/arch/arm/mach-omap2/board-apollon.c
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/delay.h>
26 #include <linux/leds.h>
27 #include <linux/err.h>
28 #include <linux/clk.h>
29
30 #include <mach/hardware.h>
31 #include <asm/mach-types.h>
32 #include <asm/mach/arch.h>
33 #include <asm/mach/flash.h>
34
35 #include <mach/gpio.h>
36 #include <mach/led.h>
37 #include <mach/mux.h>
38 #include <mach/usb.h>
39 #include <mach/board.h>
40 #include <mach/common.h>
41 #include <mach/gpmc.h>
42 #include <mach/control.h>
43
44 /* LED & Switch macros */
45 #define LED0_GPIO13 13
46 #define LED1_GPIO14 14
47 #define LED2_GPIO15 15
48 #define SW_ENTER_GPIO16 16
49 #define SW_UP_GPIO17 17
50 #define SW_DOWN_GPIO58 58
51
52 #define APOLLON_FLASH_CS 0
53 #define APOLLON_ETH_CS 1
54 #define APOLLON_ETHR_GPIO_IRQ 74
55
56 static struct mtd_partition apollon_partitions[] = {
57 {
58 .name = "X-Loader + U-Boot",
59 .offset = 0,
60 .size = SZ_128K,
61 .mask_flags = MTD_WRITEABLE,
62 },
63 {
64 .name = "params",
65 .offset = MTDPART_OFS_APPEND,
66 .size = SZ_128K,
67 },
68 {
69 .name = "kernel",
70 .offset = MTDPART_OFS_APPEND,
71 .size = SZ_2M,
72 },
73 {
74 .name = "rootfs",
75 .offset = MTDPART_OFS_APPEND,
76 .size = SZ_16M,
77 },
78 {
79 .name = "filesystem00",
80 .offset = MTDPART_OFS_APPEND,
81 .size = SZ_32M,
82 },
83 {
84 .name = "filesystem01",
85 .offset = MTDPART_OFS_APPEND,
86 .size = MTDPART_SIZ_FULL,
87 },
88 };
89
90 static struct flash_platform_data apollon_flash_data = {
91 .parts = apollon_partitions,
92 .nr_parts = ARRAY_SIZE(apollon_partitions),
93 };
94
95 static struct resource apollon_flash_resource[] = {
96 [0] = {
97 .flags = IORESOURCE_MEM,
98 },
99 };
100
101 static struct platform_device apollon_onenand_device = {
102 .name = "onenand",
103 .id = -1,
104 .dev = {
105 .platform_data = &apollon_flash_data,
106 },
107 .num_resources = ARRAY_SIZE(apollon_flash_resource),
108 .resource = apollon_flash_resource,
109 };
110
111 static void __init apollon_flash_init(void)
112 {
113 unsigned long base;
114
115 if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) {
116 printk(KERN_ERR "Cannot request OneNAND GPMC CS\n");
117 return;
118 }
119 apollon_flash_resource[0].start = base;
120 apollon_flash_resource[0].end = base + SZ_128K - 1;
121 }
122
123 static struct resource apollon_smc91x_resources[] = {
124 [0] = {
125 .flags = IORESOURCE_MEM,
126 },
127 [1] = {
128 .start = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
129 .end = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
130 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
131 },
132 };
133
134 static struct platform_device apollon_smc91x_device = {
135 .name = "smc91x",
136 .id = -1,
137 .num_resources = ARRAY_SIZE(apollon_smc91x_resources),
138 .resource = apollon_smc91x_resources,
139 };
140
141 static struct platform_device apollon_lcd_device = {
142 .name = "apollon_lcd",
143 .id = -1,
144 };
145
146 static struct omap_led_config apollon_led_config[] = {
147 {
148 .cdev = {
149 .name = "apollon:led0",
150 },
151 .gpio = LED0_GPIO13,
152 },
153 {
154 .cdev = {
155 .name = "apollon:led1",
156 },
157 .gpio = LED1_GPIO14,
158 },
159 {
160 .cdev = {
161 .name = "apollon:led2",
162 },
163 .gpio = LED2_GPIO15,
164 },
165 };
166
167 static struct omap_led_platform_data apollon_led_data = {
168 .nr_leds = ARRAY_SIZE(apollon_led_config),
169 .leds = apollon_led_config,
170 };
171
172 static struct platform_device apollon_led_device = {
173 .name = "omap-led",
174 .id = -1,
175 .dev = {
176 .platform_data = &apollon_led_data,
177 },
178 };
179
180 static struct platform_device *apollon_devices[] __initdata = {
181 &apollon_onenand_device,
182 &apollon_smc91x_device,
183 &apollon_lcd_device,
184 &apollon_led_device,
185 };
186
187 static inline void __init apollon_init_smc91x(void)
188 {
189 unsigned long base;
190
191 unsigned int rate;
192 struct clk *gpmc_fck;
193 int eth_cs;
194
195 gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */
196 if (IS_ERR(gpmc_fck)) {
197 WARN_ON(1);
198 return;
199 }
200
201 clk_enable(gpmc_fck);
202 rate = clk_get_rate(gpmc_fck);
203
204 eth_cs = APOLLON_ETH_CS;
205
206 /* Make sure CS1 timings are correct */
207 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
208
209 if (rate >= 160000000) {
210 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
211 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
212 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
213 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
214 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
215 } else if (rate >= 130000000) {
216 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
217 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
218 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
219 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
220 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
221 } else {/* rate = 100000000 */
222 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
223 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
224 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
225 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
226 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
227 }
228
229 if (gpmc_cs_request(APOLLON_ETH_CS, SZ_16M, &base) < 0) {
230 printk(KERN_ERR "Failed to request GPMC CS for smc91x\n");
231 goto out;
232 }
233 apollon_smc91x_resources[0].start = base + 0x300;
234 apollon_smc91x_resources[0].end = base + 0x30f;
235 udelay(100);
236
237 omap_cfg_reg(W4__24XX_GPIO74);
238 if (gpio_request(APOLLON_ETHR_GPIO_IRQ, "SMC91x irq") < 0) {
239 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
240 APOLLON_ETHR_GPIO_IRQ);
241 gpmc_cs_free(APOLLON_ETH_CS);
242 goto out;
243 }
244 gpio_direction_input(APOLLON_ETHR_GPIO_IRQ);
245
246 out:
247 clk_disable(gpmc_fck);
248 clk_put(gpmc_fck);
249 }
250
251 static void __init omap_apollon_init_irq(void)
252 {
253 omap2_init_common_hw(NULL, NULL);
254 omap_init_irq();
255 omap_gpio_init();
256 apollon_init_smc91x();
257 }
258
259 static struct omap_uart_config apollon_uart_config __initdata = {
260 .enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2),
261 };
262
263 static struct omap_usb_config apollon_usb_config __initdata = {
264 .register_dev = 1,
265 .hmc_mode = 0x14, /* 0:dev 1:host1 2:disable */
266
267 .pins[0] = 6,
268 };
269
270 static struct omap_lcd_config apollon_lcd_config __initdata = {
271 .ctrl_name = "internal",
272 };
273
274 static struct omap_board_config_kernel apollon_config[] = {
275 { OMAP_TAG_UART, &apollon_uart_config },
276 { OMAP_TAG_LCD, &apollon_lcd_config },
277 };
278
279 static void __init apollon_led_init(void)
280 {
281 /* LED0 - AA10 */
282 omap_cfg_reg(AA10_242X_GPIO13);
283 gpio_request(LED0_GPIO13, "LED0");
284 gpio_direction_output(LED0_GPIO13, 0);
285 /* LED1 - AA6 */
286 omap_cfg_reg(AA6_242X_GPIO14);
287 gpio_request(LED1_GPIO14, "LED1");
288 gpio_direction_output(LED1_GPIO14, 0);
289 /* LED2 - AA4 */
290 omap_cfg_reg(AA4_242X_GPIO15);
291 gpio_request(LED2_GPIO15, "LED2");
292 gpio_direction_output(LED2_GPIO15, 0);
293 }
294
295 static void __init apollon_usb_init(void)
296 {
297 /* USB device */
298 /* DEVICE_SUSPEND */
299 omap_cfg_reg(P21_242X_GPIO12);
300 gpio_request(12, "USB suspend");
301 gpio_direction_output(12, 0);
302 omap_usb_init(&apollon_usb_config);
303 }
304
305 static void __init omap_apollon_init(void)
306 {
307 u32 v;
308
309 apollon_led_init();
310 apollon_flash_init();
311 apollon_usb_init();
312
313 /* REVISIT: where's the correct place */
314 omap_cfg_reg(W19_24XX_SYS_NIRQ);
315
316 /* Use Interal loop-back in MMC/SDIO Module Input Clock selection */
317 v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
318 v |= (1 << 24);
319 omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
320
321 /*
322 * Make sure the serial ports are muxed on at this point.
323 * You have to mux them off in device drivers later on
324 * if not needed.
325 */
326 platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
327 omap_board_config = apollon_config;
328 omap_board_config_size = ARRAY_SIZE(apollon_config);
329 omap_serial_init();
330 }
331
332 static void __init omap_apollon_map_io(void)
333 {
334 omap2_set_globals_242x();
335 omap2_map_common_io();
336 }
337
338 MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
339 /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
340 .phys_io = 0x48000000,
341 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
342 .boot_params = 0x80000100,
343 .map_io = omap_apollon_map_io,
344 .init_irq = omap_apollon_init_irq,
345 .init_machine = omap_apollon_init,
346 .timer = &omap_timer,
347 MACHINE_END
348
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