Merge branch 'master' of git://git.marvell.com/orion into devel
[linux-2.6] / 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
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
55 static struct mtd_partition apollon_partitions[] = {
56         {
57                 .name           = "X-Loader + U-Boot",
58                 .offset         = 0,
59                 .size           = SZ_128K,
60                 .mask_flags     = MTD_WRITEABLE,
61         },
62         {
63                 .name           = "params",
64                 .offset         = MTDPART_OFS_APPEND,
65                 .size           = SZ_128K,
66         },
67         {
68                 .name           = "kernel",
69                 .offset         = MTDPART_OFS_APPEND,
70                 .size           = SZ_2M,
71         },
72         {
73                 .name           = "rootfs",
74                 .offset         = MTDPART_OFS_APPEND,
75                 .size           = SZ_16M,
76         },
77         {
78                 .name           = "filesystem00",
79                 .offset         = MTDPART_OFS_APPEND,
80                 .size           = SZ_32M,
81         },
82         {
83                 .name           = "filesystem01",
84                 .offset         = MTDPART_OFS_APPEND,
85                 .size           = MTDPART_SIZ_FULL,
86         },
87 };
88
89 static struct flash_platform_data apollon_flash_data = {
90         .parts          = apollon_partitions,
91         .nr_parts       = ARRAY_SIZE(apollon_partitions),
92 };
93
94 static struct resource apollon_flash_resource[] = {
95         [0] = {
96                 .flags          = IORESOURCE_MEM,
97         },
98 };
99
100 static struct platform_device apollon_onenand_device = {
101         .name           = "onenand",
102         .id             = -1,
103         .dev            = {
104                 .platform_data  = &apollon_flash_data,
105         },
106         .num_resources  = ARRAY_SIZE(apollon_flash_resource),
107         .resource       = apollon_flash_resource,
108 };
109
110 static void __init apollon_flash_init(void)
111 {
112         unsigned long base;
113
114         if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) {
115                 printk(KERN_ERR "Cannot request OneNAND GPMC CS\n");
116                 return;
117         }
118         apollon_flash_resource[0].start = base;
119         apollon_flash_resource[0].end   = base + SZ_128K - 1;
120 }
121
122 static struct resource apollon_smc91x_resources[] = {
123         [0] = {
124                 .flags  = IORESOURCE_MEM,
125         },
126         [1] = {
127                 .start  = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
128                 .end    = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
129                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
130         },
131 };
132
133 static struct platform_device apollon_smc91x_device = {
134         .name           = "smc91x",
135         .id             = -1,
136         .num_resources  = ARRAY_SIZE(apollon_smc91x_resources),
137         .resource       = apollon_smc91x_resources,
138 };
139
140 static struct platform_device apollon_lcd_device = {
141         .name           = "apollon_lcd",
142         .id             = -1,
143 };
144
145 static struct omap_led_config apollon_led_config[] = {
146         {
147                 .cdev   = {
148                         .name   = "apollon:led0",
149                 },
150                 .gpio   = LED0_GPIO13,
151         },
152         {
153                 .cdev   = {
154                         .name   = "apollon:led1",
155                 },
156                 .gpio   = LED1_GPIO14,
157         },
158         {
159                 .cdev   = {
160                         .name   = "apollon:led2",
161                 },
162                 .gpio   = LED2_GPIO15,
163         },
164 };
165
166 static struct omap_led_platform_data apollon_led_data = {
167         .nr_leds        = ARRAY_SIZE(apollon_led_config),
168         .leds           = apollon_led_config,
169 };
170
171 static struct platform_device apollon_led_device = {
172         .name           = "omap-led",
173         .id             = -1,
174         .dev            = {
175                 .platform_data  = &apollon_led_data,
176         },
177 };
178
179 static struct platform_device *apollon_devices[] __initdata = {
180         &apollon_onenand_device,
181         &apollon_smc91x_device,
182         &apollon_lcd_device,
183         &apollon_led_device,
184 };
185
186 static inline void __init apollon_init_smc91x(void)
187 {
188         unsigned long base;
189
190         unsigned int rate;
191         struct clk *gpmc_fck;
192         int eth_cs;
193
194         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
195         if (IS_ERR(gpmc_fck)) {
196                 WARN_ON(1);
197                 return;
198         }
199
200         clk_enable(gpmc_fck);
201         rate = clk_get_rate(gpmc_fck);
202
203         eth_cs = APOLLON_ETH_CS;
204
205         /* Make sure CS1 timings are correct */
206         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
207
208         if (rate >= 160000000) {
209                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
210                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
211                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
212                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
213                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
214         } else if (rate >= 130000000) {
215                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
216                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
217                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
218                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
219                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
220         } else {/* rate = 100000000 */
221                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
222                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
223                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
224                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
225                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
226         }
227
228         if (gpmc_cs_request(APOLLON_ETH_CS, SZ_16M, &base) < 0) {
229                 printk(KERN_ERR "Failed to request GPMC CS for smc91x\n");
230                 goto out;
231         }
232         apollon_smc91x_resources[0].start = base + 0x300;
233         apollon_smc91x_resources[0].end   = base + 0x30f;
234         udelay(100);
235
236         omap_cfg_reg(W4__24XX_GPIO74);
237         if (gpio_request(APOLLON_ETHR_GPIO_IRQ, "SMC91x irq") < 0) {
238                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
239                         APOLLON_ETHR_GPIO_IRQ);
240                 gpmc_cs_free(APOLLON_ETH_CS);
241                 goto out;
242         }
243         gpio_direction_input(APOLLON_ETHR_GPIO_IRQ);
244
245 out:
246         clk_disable(gpmc_fck);
247         clk_put(gpmc_fck);
248 }
249
250 static void __init omap_apollon_init_irq(void)
251 {
252         omap2_init_common_hw(NULL);
253         omap_init_irq();
254         omap_gpio_init();
255         apollon_init_smc91x();
256 }
257
258 static struct omap_uart_config apollon_uart_config __initdata = {
259         .enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2),
260 };
261
262 static struct omap_usb_config apollon_usb_config __initdata = {
263         .register_dev   = 1,
264         .hmc_mode       = 0x14, /* 0:dev 1:host1 2:disable */
265
266         .pins[0]        = 6,
267 };
268
269 static struct omap_lcd_config apollon_lcd_config __initdata = {
270         .ctrl_name      = "internal",
271 };
272
273 static struct omap_board_config_kernel apollon_config[] = {
274         { OMAP_TAG_UART,        &apollon_uart_config },
275         { OMAP_TAG_USB,         &apollon_usb_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 }
303
304 static void __init omap_apollon_init(void)
305 {
306         u32 v;
307
308         apollon_led_init();
309         apollon_flash_init();
310         apollon_usb_init();
311
312         /* REVISIT: where's the correct place */
313         omap_cfg_reg(W19_24XX_SYS_NIRQ);
314
315         /* Use Interal loop-back in MMC/SDIO Module Input Clock selection */
316         v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
317         v |= (1 << 24);
318         omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
319
320         /*
321          * Make sure the serial ports are muxed on at this point.
322          * You have to mux them off in device drivers later on
323          * if not needed.
324          */
325         platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
326         omap_board_config = apollon_config;
327         omap_board_config_size = ARRAY_SIZE(apollon_config);
328         omap_serial_init();
329 }
330
331 static void __init omap_apollon_map_io(void)
332 {
333         omap2_set_globals_242x();
334         omap2_map_common_io();
335 }
336
337 MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
338         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
339         .phys_io        = 0x48000000,
340         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
341         .boot_params    = 0x80000100,
342         .map_io         = omap_apollon_map_io,
343         .init_irq       = omap_apollon_init_irq,
344         .init_machine   = omap_apollon_init,
345         .timer          = &omap_timer,
346 MACHINE_END