Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6.git] / arch / arm / mach-omap2 / board-apollon.c
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 #include <linux/smc91x.h>
30
31 #include <mach/hardware.h>
32 #include <asm/mach-types.h>
33 #include <asm/mach/arch.h>
34 #include <asm/mach/flash.h>
35
36 #include <mach/gpio.h>
37 #include <plat/led.h>
38 #include <plat/mux.h>
39 #include <plat/usb.h>
40 #include <plat/board.h>
41 #include <plat/common.h>
42 #include <plat/gpmc.h>
43 #include <plat/control.h>
44
45 /* LED & Switch macros */
46 #define LED0_GPIO13             13
47 #define LED1_GPIO14             14
48 #define LED2_GPIO15             15
49 #define SW_ENTER_GPIO16         16
50 #define SW_UP_GPIO17            17
51 #define SW_DOWN_GPIO58          58
52
53 #define APOLLON_FLASH_CS        0
54 #define APOLLON_ETH_CS          1
55 #define APOLLON_ETHR_GPIO_IRQ   74
56
57 static struct mtd_partition apollon_partitions[] = {
58         {
59                 .name           = "X-Loader + U-Boot",
60                 .offset         = 0,
61                 .size           = SZ_128K,
62                 .mask_flags     = MTD_WRITEABLE,
63         },
64         {
65                 .name           = "params",
66                 .offset         = MTDPART_OFS_APPEND,
67                 .size           = SZ_128K,
68         },
69         {
70                 .name           = "kernel",
71                 .offset         = MTDPART_OFS_APPEND,
72                 .size           = SZ_2M,
73         },
74         {
75                 .name           = "rootfs",
76                 .offset         = MTDPART_OFS_APPEND,
77                 .size           = SZ_16M,
78         },
79         {
80                 .name           = "filesystem00",
81                 .offset         = MTDPART_OFS_APPEND,
82                 .size           = SZ_32M,
83         },
84         {
85                 .name           = "filesystem01",
86                 .offset         = MTDPART_OFS_APPEND,
87                 .size           = MTDPART_SIZ_FULL,
88         },
89 };
90
91 static struct onenand_platform_data apollon_flash_data = {
92         .parts          = apollon_partitions,
93         .nr_parts       = ARRAY_SIZE(apollon_partitions),
94 };
95
96 static struct resource apollon_flash_resource[] = {
97         [0] = {
98                 .flags          = IORESOURCE_MEM,
99         },
100 };
101
102 static struct platform_device apollon_onenand_device = {
103         .name           = "onenand-flash",
104         .id             = -1,
105         .dev            = {
106                 .platform_data  = &apollon_flash_data,
107         },
108         .num_resources  = ARRAY_SIZE(apollon_flash_resource),
109         .resource       = apollon_flash_resource,
110 };
111
112 static void __init apollon_flash_init(void)
113 {
114         unsigned long base;
115
116         if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) {
117                 printk(KERN_ERR "Cannot request OneNAND GPMC CS\n");
118                 return;
119         }
120         apollon_flash_resource[0].start = base;
121         apollon_flash_resource[0].end   = base + SZ_128K - 1;
122 }
123
124 static struct smc91x_platdata appolon_smc91x_info = {
125         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
126         .leda   = RPC_LED_100_10,
127         .ledb   = RPC_LED_TX_RX,
128 };
129
130 static struct resource apollon_smc91x_resources[] = {
131         [0] = {
132                 .flags  = IORESOURCE_MEM,
133         },
134         [1] = {
135                 .start  = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
136                 .end    = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
137                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
138         },
139 };
140
141 static struct platform_device apollon_smc91x_device = {
142         .name           = "smc91x",
143         .id             = -1,
144         .dev    = {
145                 .platform_data  = &appolon_smc91x_info,
146         },
147         .num_resources  = ARRAY_SIZE(apollon_smc91x_resources),
148         .resource       = apollon_smc91x_resources,
149 };
150
151 static struct platform_device apollon_lcd_device = {
152         .name           = "apollon_lcd",
153         .id             = -1,
154 };
155
156 static struct omap_led_config apollon_led_config[] = {
157         {
158                 .cdev   = {
159                         .name   = "apollon:led0",
160                 },
161                 .gpio   = LED0_GPIO13,
162         },
163         {
164                 .cdev   = {
165                         .name   = "apollon:led1",
166                 },
167                 .gpio   = LED1_GPIO14,
168         },
169         {
170                 .cdev   = {
171                         .name   = "apollon:led2",
172                 },
173                 .gpio   = LED2_GPIO15,
174         },
175 };
176
177 static struct omap_led_platform_data apollon_led_data = {
178         .nr_leds        = ARRAY_SIZE(apollon_led_config),
179         .leds           = apollon_led_config,
180 };
181
182 static struct platform_device apollon_led_device = {
183         .name           = "omap-led",
184         .id             = -1,
185         .dev            = {
186                 .platform_data  = &apollon_led_data,
187         },
188 };
189
190 static struct platform_device *apollon_devices[] __initdata = {
191         &apollon_onenand_device,
192         &apollon_smc91x_device,
193         &apollon_lcd_device,
194         &apollon_led_device,
195 };
196
197 static inline void __init apollon_init_smc91x(void)
198 {
199         unsigned long base;
200
201         unsigned int rate;
202         struct clk *gpmc_fck;
203         int eth_cs;
204
205         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
206         if (IS_ERR(gpmc_fck)) {
207                 WARN_ON(1);
208                 return;
209         }
210
211         clk_enable(gpmc_fck);
212         rate = clk_get_rate(gpmc_fck);
213
214         eth_cs = APOLLON_ETH_CS;
215
216         /* Make sure CS1 timings are correct */
217         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
218
219         if (rate >= 160000000) {
220                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
221                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
222                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
223                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
224                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
225         } else if (rate >= 130000000) {
226                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
227                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
228                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
229                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
230                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
231         } else {/* rate = 100000000 */
232                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
233                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
234                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
235                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
236                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
237         }
238
239         if (gpmc_cs_request(APOLLON_ETH_CS, SZ_16M, &base) < 0) {
240                 printk(KERN_ERR "Failed to request GPMC CS for smc91x\n");
241                 goto out;
242         }
243         apollon_smc91x_resources[0].start = base + 0x300;
244         apollon_smc91x_resources[0].end   = base + 0x30f;
245         udelay(100);
246
247         omap_cfg_reg(W4__24XX_GPIO74);
248         if (gpio_request(APOLLON_ETHR_GPIO_IRQ, "SMC91x irq") < 0) {
249                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
250                         APOLLON_ETHR_GPIO_IRQ);
251                 gpmc_cs_free(APOLLON_ETH_CS);
252                 goto out;
253         }
254         gpio_direction_input(APOLLON_ETHR_GPIO_IRQ);
255
256 out:
257         clk_disable(gpmc_fck);
258         clk_put(gpmc_fck);
259 }
260
261 static struct omap_usb_config apollon_usb_config __initdata = {
262         .register_dev   = 1,
263         .hmc_mode       = 0x14, /* 0:dev 1:host1 2:disable */
264
265         .pins[0]        = 6,
266 };
267
268 static struct omap_lcd_config apollon_lcd_config __initdata = {
269         .ctrl_name      = "internal",
270 };
271
272 static struct omap_board_config_kernel apollon_config[] = {
273         { OMAP_TAG_LCD,         &apollon_lcd_config },
274 };
275
276 static void __init omap_apollon_init_irq(void)
277 {
278         omap_board_config = apollon_config;
279         omap_board_config_size = ARRAY_SIZE(apollon_config);
280         omap2_init_common_hw(NULL, NULL);
281         omap_init_irq();
282         omap_gpio_init();
283         apollon_init_smc91x();
284 }
285
286 static void __init apollon_led_init(void)
287 {
288         /* LED0 - AA10 */
289         omap_cfg_reg(AA10_242X_GPIO13);
290         gpio_request(LED0_GPIO13, "LED0");
291         gpio_direction_output(LED0_GPIO13, 0);
292         /* LED1  - AA6 */
293         omap_cfg_reg(AA6_242X_GPIO14);
294         gpio_request(LED1_GPIO14, "LED1");
295         gpio_direction_output(LED1_GPIO14, 0);
296         /* LED2  - AA4 */
297         omap_cfg_reg(AA4_242X_GPIO15);
298         gpio_request(LED2_GPIO15, "LED2");
299         gpio_direction_output(LED2_GPIO15, 0);
300 }
301
302 static void __init apollon_usb_init(void)
303 {
304         /* USB device */
305         /* DEVICE_SUSPEND */
306         omap_cfg_reg(P21_242X_GPIO12);
307         gpio_request(12, "USB suspend");
308         gpio_direction_output(12, 0);
309         omap_usb_init(&apollon_usb_config);
310 }
311
312 static void __init omap_apollon_init(void)
313 {
314         u32 v;
315
316         apollon_led_init();
317         apollon_flash_init();
318         apollon_usb_init();
319
320         /* REVISIT: where's the correct place */
321         omap_cfg_reg(W19_24XX_SYS_NIRQ);
322
323         /* Use Interal loop-back in MMC/SDIO Module Input Clock selection */
324         v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
325         v |= (1 << 24);
326         omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
327
328         /*
329          * Make sure the serial ports are muxed on at this point.
330          * You have to mux them off in device drivers later on
331          * if not needed.
332          */
333         platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
334         omap_serial_init();
335 }
336
337 static void __init omap_apollon_map_io(void)
338 {
339         omap2_set_globals_242x();
340         omap2_map_common_io();
341 }
342
343 MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
344         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
345         .phys_io        = 0x48000000,
346         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
347         .boot_params    = 0x80000100,
348         .map_io         = omap_apollon_map_io,
349         .init_irq       = omap_apollon_init_irq,
350         .init_machine   = omap_apollon_init,
351         .timer          = &omap_timer,
352 MACHINE_END