150b57ba42bfcd8d4a584a6d780f0456e842a608
[platform/kernel/linux-rpi.git] / arch / arm / mach-omap1 / board-perseus2.c
1 /*
2  * linux/arch/arm/mach-omap1/board-perseus2.c
3  *
4  * Modified from board-generic.c
5  *
6  * Original OMAP730 support by Jean Pihet <j-pihet@ti.com>
7  * Updated for 2.6 by Kevin Hilman <kjh@hilman.org>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12  */
13 #include <linux/gpio.h>
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
17 #include <linux/delay.h>
18 #include <linux/mtd/mtd.h>
19 #include <linux/mtd/nand.h>
20 #include <linux/mtd/partitions.h>
21 #include <linux/mtd/physmap.h>
22 #include <linux/input.h>
23 #include <linux/smc91x.h>
24 #include <linux/omapfb.h>
25 #include <linux/platform_data/keypad-omap.h>
26
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/map.h>
30
31 #include <mach/tc.h>
32 #include <mach/mux.h>
33 #include "flash.h"
34
35 #include <mach/hardware.h>
36
37 #include "iomap.h"
38 #include "common.h"
39 #include "fpga.h"
40
41 static const unsigned int p2_keymap[] = {
42         KEY(0, 0, KEY_UP),
43         KEY(1, 0, KEY_RIGHT),
44         KEY(2, 0, KEY_LEFT),
45         KEY(3, 0, KEY_DOWN),
46         KEY(4, 0, KEY_ENTER),
47         KEY(0, 1, KEY_F10),
48         KEY(1, 1, KEY_SEND),
49         KEY(2, 1, KEY_END),
50         KEY(3, 1, KEY_VOLUMEDOWN),
51         KEY(4, 1, KEY_VOLUMEUP),
52         KEY(5, 1, KEY_RECORD),
53         KEY(0, 2, KEY_F9),
54         KEY(1, 2, KEY_3),
55         KEY(2, 2, KEY_6),
56         KEY(3, 2, KEY_9),
57         KEY(4, 2, KEY_KPDOT),
58         KEY(0, 3, KEY_BACK),
59         KEY(1, 3, KEY_2),
60         KEY(2, 3, KEY_5),
61         KEY(3, 3, KEY_8),
62         KEY(4, 3, KEY_0),
63         KEY(5, 3, KEY_KPSLASH),
64         KEY(0, 4, KEY_HOME),
65         KEY(1, 4, KEY_1),
66         KEY(2, 4, KEY_4),
67         KEY(3, 4, KEY_7),
68         KEY(4, 4, KEY_KPASTERISK),
69         KEY(5, 4, KEY_POWER),
70 };
71
72 static struct smc91x_platdata smc91x_info = {
73         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
74         .leda   = RPC_LED_100_10,
75         .ledb   = RPC_LED_TX_RX,
76 };
77
78 static struct resource smc91x_resources[] = {
79         [0] = {
80                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
81                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
82                 .flags  = IORESOURCE_MEM,
83         },
84         [1] = {
85                 .start  = INT_7XX_MPU_EXT_NIRQ,
86                 .end    = 0,
87                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
88         },
89 };
90
91 static struct mtd_partition nor_partitions[] = {
92         /* bootloader (U-Boot, etc) in first sector */
93         {
94               .name             = "bootloader",
95               .offset           = 0,
96               .size             = SZ_128K,
97               .mask_flags       = MTD_WRITEABLE, /* force read-only */
98         },
99         /* bootloader params in the next sector */
100         {
101               .name             = "params",
102               .offset           = MTDPART_OFS_APPEND,
103               .size             = SZ_128K,
104               .mask_flags       = 0,
105         },
106         /* kernel */
107         {
108               .name             = "kernel",
109               .offset           = MTDPART_OFS_APPEND,
110               .size             = SZ_2M,
111               .mask_flags       = 0
112         },
113         /* rest of flash is a file system */
114         {
115               .name             = "rootfs",
116               .offset           = MTDPART_OFS_APPEND,
117               .size             = MTDPART_SIZ_FULL,
118               .mask_flags       = 0
119         },
120 };
121
122 static struct physmap_flash_data nor_data = {
123         .width          = 2,
124         .set_vpp        = omap1_set_vpp,
125         .parts          = nor_partitions,
126         .nr_parts       = ARRAY_SIZE(nor_partitions),
127 };
128
129 static struct resource nor_resource = {
130         .start          = OMAP_CS0_PHYS,
131         .end            = OMAP_CS0_PHYS + SZ_32M - 1,
132         .flags          = IORESOURCE_MEM,
133 };
134
135 static struct platform_device nor_device = {
136         .name           = "physmap-flash",
137         .id             = 0,
138         .dev            = {
139                 .platform_data  = &nor_data,
140         },
141         .num_resources  = 1,
142         .resource       = &nor_resource,
143 };
144
145 #define P2_NAND_RB_GPIO_PIN     62
146
147 static int nand_dev_ready(struct mtd_info *mtd)
148 {
149         return gpio_get_value(P2_NAND_RB_GPIO_PIN);
150 }
151
152 static struct platform_nand_data nand_data = {
153         .chip   = {
154                 .nr_chips               = 1,
155                 .chip_offset            = 0,
156                 .options                = NAND_SAMSUNG_LP_OPTIONS,
157         },
158         .ctrl   = {
159                 .cmd_ctrl       = omap1_nand_cmd_ctl,
160                 .dev_ready      = nand_dev_ready,
161         },
162 };
163
164 static struct resource nand_resource = {
165         .start          = OMAP_CS3_PHYS,
166         .end            = OMAP_CS3_PHYS + SZ_4K - 1,
167         .flags          = IORESOURCE_MEM,
168 };
169
170 static struct platform_device nand_device = {
171         .name           = "gen_nand",
172         .id             = 0,
173         .dev            = {
174                 .platform_data  = &nand_data,
175         },
176         .num_resources  = 1,
177         .resource       = &nand_resource,
178 };
179
180 static struct platform_device smc91x_device = {
181         .name           = "smc91x",
182         .id             = 0,
183         .dev    = {
184                 .platform_data  = &smc91x_info,
185         },
186         .num_resources  = ARRAY_SIZE(smc91x_resources),
187         .resource       = smc91x_resources,
188 };
189
190 static struct resource kp_resources[] = {
191         [0] = {
192                 .start  = INT_7XX_MPUIO_KEYPAD,
193                 .end    = INT_7XX_MPUIO_KEYPAD,
194                 .flags  = IORESOURCE_IRQ,
195         },
196 };
197
198 static const struct matrix_keymap_data p2_keymap_data = {
199         .keymap         = p2_keymap,
200         .keymap_size    = ARRAY_SIZE(p2_keymap),
201 };
202
203 static struct omap_kp_platform_data kp_data = {
204         .rows           = 8,
205         .cols           = 8,
206         .keymap_data    = &p2_keymap_data,
207         .delay          = 4,
208         .dbounce        = true,
209 };
210
211 static struct platform_device kp_device = {
212         .name           = "omap-keypad",
213         .id             = -1,
214         .dev            = {
215                 .platform_data = &kp_data,
216         },
217         .num_resources  = ARRAY_SIZE(kp_resources),
218         .resource       = kp_resources,
219 };
220
221 static struct platform_device *devices[] __initdata = {
222         &nor_device,
223         &nand_device,
224         &smc91x_device,
225         &kp_device,
226 };
227
228 static struct omap_lcd_config perseus2_lcd_config __initdata = {
229         .ctrl_name      = "internal",
230 };
231
232 static void __init perseus2_init_smc91x(void)
233 {
234         __raw_writeb(1, H2P2_DBG_FPGA_LAN_RESET);
235         mdelay(50);
236         __raw_writeb(__raw_readb(H2P2_DBG_FPGA_LAN_RESET) & ~1,
237                    H2P2_DBG_FPGA_LAN_RESET);
238         mdelay(50);
239 }
240
241 static void __init omap_perseus2_init(void)
242 {
243         /* Early, board-dependent init */
244
245         /*
246          * Hold GSM Reset until needed
247          */
248         omap_writew(omap_readw(OMAP7XX_DSP_M_CTL) & ~1, OMAP7XX_DSP_M_CTL);
249
250         /*
251          * UARTs -> done automagically by 8250 driver
252          */
253
254         /*
255          * CSx timings, GPIO Mux ... setup
256          */
257
258         /* Flash: CS0 timings setup */
259         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_0);
260         omap_writel(0x00000088, OMAP7XX_FLASH_ACFG_0);
261
262         /*
263          * Ethernet support through the debug board
264          * CS1 timings setup
265          */
266         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_1);
267         omap_writel(0x00000000, OMAP7XX_FLASH_ACFG_1);
268
269         /*
270          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
271          * It is used as the Ethernet controller interrupt
272          */
273         omap_writel(omap_readl(OMAP7XX_IO_CONF_9) & 0x1FFFFFFF,
274                                 OMAP7XX_IO_CONF_9);
275
276         perseus2_init_smc91x();
277
278         BUG_ON(gpio_request(P2_NAND_RB_GPIO_PIN, "NAND ready") < 0);
279         gpio_direction_input(P2_NAND_RB_GPIO_PIN);
280
281         omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
282         omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
283
284         /* Mux pins for keypad */
285         omap_cfg_reg(E2_7XX_KBR0);
286         omap_cfg_reg(J7_7XX_KBR1);
287         omap_cfg_reg(E1_7XX_KBR2);
288         omap_cfg_reg(F3_7XX_KBR3);
289         omap_cfg_reg(D2_7XX_KBR4);
290         omap_cfg_reg(C2_7XX_KBC0);
291         omap_cfg_reg(D3_7XX_KBC1);
292         omap_cfg_reg(E4_7XX_KBC2);
293         omap_cfg_reg(F4_7XX_KBC3);
294         omap_cfg_reg(E3_7XX_KBC4);
295
296         platform_add_devices(devices, ARRAY_SIZE(devices));
297
298         omap_serial_init();
299         omap_register_i2c_bus(1, 100, NULL, 0);
300
301         omapfb_set_lcd_config(&perseus2_lcd_config);
302 }
303
304 /* Only FPGA needs to be mapped here. All others are done with ioremap */
305 static struct map_desc omap_perseus2_io_desc[] __initdata = {
306         {
307                 .virtual        = H2P2_DBG_FPGA_BASE,
308                 .pfn            = __phys_to_pfn(H2P2_DBG_FPGA_START),
309                 .length         = H2P2_DBG_FPGA_SIZE,
310                 .type           = MT_DEVICE
311         }
312 };
313
314 static void __init omap_perseus2_map_io(void)
315 {
316         omap7xx_map_io();
317         iotable_init(omap_perseus2_io_desc,
318                      ARRAY_SIZE(omap_perseus2_io_desc));
319 }
320
321 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
322         /* Maintainer: Kevin Hilman <kjh@hilman.org> */
323         .atag_offset    = 0x100,
324         .map_io         = omap_perseus2_map_io,
325         .init_early     = omap1_init_early,
326         .init_irq       = omap1_init_irq,
327         .handle_irq     = omap1_handle_irq,
328         .init_machine   = omap_perseus2_init,
329         .init_late      = omap1_init_late,
330         .init_time      = omap1_timer_init,
331         .restart        = omap1_restart,
332 MACHINE_END