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 #include <linux/gpio.h>
31
32 #include <mach/hardware.h>
33 #include <asm/mach-types.h>
34 #include <asm/mach/arch.h>
35 #include <asm/mach/flash.h>
36
37 #include <plat/led.h>
38 #include <plat/usb.h>
39 #include <plat/board.h>
40 #include "common.h"
41 #include <plat/gpmc.h>
42
43 #include <video/omapdss.h>
44 #include <video/omap-panel-generic-dpi.h>
45
46 #include "mux.h"
47 #include "control.h"
48
49 /* LED & Switch macros */
50 #define LED0_GPIO13 13
51 #define LED1_GPIO14 14
52 #define LED2_GPIO15 15
53 #define SW_ENTER_GPIO16 16
54 #define SW_UP_GPIO17 17
55 #define SW_DOWN_GPIO58 58
56
57 #define APOLLON_FLASH_CS 0
58 #define APOLLON_ETH_CS 1
59 #define APOLLON_ETHR_GPIO_IRQ 74
60
61 static struct mtd_partition apollon_partitions[] = {
62 {
63 .name = "X-Loader + U-Boot",
64 .offset = 0,
65 .size = SZ_128K,
66 .mask_flags = MTD_WRITEABLE,
67 },
68 {
69 .name = "params",
70 .offset = MTDPART_OFS_APPEND,
71 .size = SZ_128K,
72 },
73 {
74 .name = "kernel",
75 .offset = MTDPART_OFS_APPEND,
76 .size = SZ_2M,
77 },
78 {
79 .name = "rootfs",
80 .offset = MTDPART_OFS_APPEND,
81 .size = SZ_16M,
82 },
83 {
84 .name = "filesystem00",
85 .offset = MTDPART_OFS_APPEND,
86 .size = SZ_32M,
87 },
88 {
89 .name = "filesystem01",
90 .offset = MTDPART_OFS_APPEND,
91 .size = MTDPART_SIZ_FULL,
92 },
93 };
94
95 static struct onenand_platform_data apollon_flash_data = {
96 .parts = apollon_partitions,
97 .nr_parts = ARRAY_SIZE(apollon_partitions),
98 };
99
100 static struct resource apollon_flash_resource[] = {
101 [0] = {
102 .flags = IORESOURCE_MEM,
103 },
104 };
105
106 static struct platform_device apollon_onenand_device = {
107 .name = "onenand-flash",
108 .id = -1,
109 .dev = {
110 .platform_data = &apollon_flash_data,
111 },
112 .num_resources = ARRAY_SIZE(apollon_flash_resource),
113 .resource = apollon_flash_resource,
114 };
115
apollon_flash_init(void)116 static void __init apollon_flash_init(void)
117 {
118 unsigned long base;
119
120 if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) {
121 printk(KERN_ERR "Cannot request OneNAND GPMC CS\n");
122 return;
123 }
124 apollon_flash_resource[0].start = base;
125 apollon_flash_resource[0].end = base + SZ_128K - 1;
126 }
127
128 static struct smc91x_platdata appolon_smc91x_info = {
129 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
130 .leda = RPC_LED_100_10,
131 .ledb = RPC_LED_TX_RX,
132 };
133
134 static struct resource apollon_smc91x_resources[] = {
135 [0] = {
136 .flags = IORESOURCE_MEM,
137 },
138 [1] = {
139 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
140 },
141 };
142
143 static struct platform_device apollon_smc91x_device = {
144 .name = "smc91x",
145 .id = -1,
146 .dev = {
147 .platform_data = &appolon_smc91x_info,
148 },
149 .num_resources = ARRAY_SIZE(apollon_smc91x_resources),
150 .resource = apollon_smc91x_resources,
151 };
152
153 static struct omap_led_config apollon_led_config[] = {
154 {
155 .cdev = {
156 .name = "apollon:led0",
157 },
158 .gpio = LED0_GPIO13,
159 },
160 {
161 .cdev = {
162 .name = "apollon:led1",
163 },
164 .gpio = LED1_GPIO14,
165 },
166 {
167 .cdev = {
168 .name = "apollon:led2",
169 },
170 .gpio = LED2_GPIO15,
171 },
172 };
173
174 static struct omap_led_platform_data apollon_led_data = {
175 .nr_leds = ARRAY_SIZE(apollon_led_config),
176 .leds = apollon_led_config,
177 };
178
179 static struct platform_device apollon_led_device = {
180 .name = "omap-led",
181 .id = -1,
182 .dev = {
183 .platform_data = &apollon_led_data,
184 },
185 };
186
187 static struct platform_device *apollon_devices[] __initdata = {
188 &apollon_onenand_device,
189 &apollon_smc91x_device,
190 &apollon_led_device,
191 };
192
apollon_init_smc91x(void)193 static inline void __init apollon_init_smc91x(void)
194 {
195 unsigned long base;
196
197 unsigned int rate;
198 struct clk *gpmc_fck;
199 int eth_cs;
200 int err;
201
202 gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */
203 if (IS_ERR(gpmc_fck)) {
204 WARN_ON(1);
205 return;
206 }
207
208 clk_enable(gpmc_fck);
209 rate = clk_get_rate(gpmc_fck);
210
211 eth_cs = APOLLON_ETH_CS;
212
213 /* Make sure CS1 timings are correct */
214 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
215
216 if (rate >= 160000000) {
217 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
218 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
219 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
220 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
221 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
222 } else if (rate >= 130000000) {
223 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
224 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
225 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
226 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
227 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
228 } else {/* rate = 100000000 */
229 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
230 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
231 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
232 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
233 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
234 }
235
236 if (gpmc_cs_request(APOLLON_ETH_CS, SZ_16M, &base) < 0) {
237 printk(KERN_ERR "Failed to request GPMC CS for smc91x\n");
238 goto out;
239 }
240 apollon_smc91x_resources[0].start = base + 0x300;
241 apollon_smc91x_resources[0].end = base + 0x30f;
242 udelay(100);
243
244 omap_mux_init_gpio(APOLLON_ETHR_GPIO_IRQ, 0);
245 err = gpio_request_one(APOLLON_ETHR_GPIO_IRQ, GPIOF_IN, "SMC91x irq");
246 if (err) {
247 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
248 APOLLON_ETHR_GPIO_IRQ);
249 gpmc_cs_free(APOLLON_ETH_CS);
250 }
251 out:
252 clk_disable(gpmc_fck);
253 clk_put(gpmc_fck);
254 }
255
256 static struct omap_usb_config apollon_usb_config __initdata = {
257 .register_dev = 1,
258 .hmc_mode = 0x14, /* 0:dev 1:host1 2:disable */
259
260 .pins[0] = 6,
261 };
262
263 static struct panel_generic_dpi_data apollon_panel_data = {
264 .name = "apollon",
265 };
266
267 static struct omap_dss_device apollon_lcd_device = {
268 .name = "lcd",
269 .driver_name = "generic_dpi_panel",
270 .type = OMAP_DISPLAY_TYPE_DPI,
271 .phy.dpi.data_lines = 18,
272 .data = &apollon_panel_data,
273 };
274
275 static struct omap_dss_device *apollon_dss_devices[] = {
276 &apollon_lcd_device,
277 };
278
279 static struct omap_dss_board_info apollon_dss_data = {
280 .num_devices = ARRAY_SIZE(apollon_dss_devices),
281 .devices = apollon_dss_devices,
282 .default_device = &apollon_lcd_device,
283 };
284
285 static struct gpio apollon_gpio_leds[] __initdata = {
286 { LED0_GPIO13, GPIOF_OUT_INIT_LOW, "LED0" }, /* LED0 - AA10 */
287 { LED1_GPIO14, GPIOF_OUT_INIT_LOW, "LED1" }, /* LED1 - AA6 */
288 { LED2_GPIO15, GPIOF_OUT_INIT_LOW, "LED2" }, /* LED2 - AA4 */
289 };
290
apollon_led_init(void)291 static void __init apollon_led_init(void)
292 {
293 omap_mux_init_signal("vlynq_clk.gpio_13", 0);
294 omap_mux_init_signal("vlynq_rx1.gpio_14", 0);
295 omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
296
297 gpio_request_array(apollon_gpio_leds, ARRAY_SIZE(apollon_gpio_leds));
298 }
299
apollon_usb_init(void)300 static void __init apollon_usb_init(void)
301 {
302 /* USB device */
303 /* DEVICE_SUSPEND */
304 omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0);
305 gpio_request_one(12, GPIOF_OUT_INIT_LOW, "USB suspend");
306 omap2_usbfs_init(&apollon_usb_config);
307 }
308
309 #ifdef CONFIG_OMAP_MUX
310 static struct omap_board_mux board_mux[] __initdata = {
311 { .reg_offset = OMAP_MUX_TERMINATOR },
312 };
313 #endif
314
omap_apollon_init(void)315 static void __init omap_apollon_init(void)
316 {
317 u32 v;
318
319 omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);
320
321 apollon_init_smc91x();
322 apollon_led_init();
323 apollon_flash_init();
324 apollon_usb_init();
325
326 /* REVISIT: where's the correct place */
327 omap_mux_init_signal("sys_nirq", OMAP_PULL_ENA | OMAP_PULL_UP);
328
329 /* LCD PWR_EN */
330 omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
331
332 /* Use Interal loop-back in MMC/SDIO Module Input Clock selection */
333 v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
334 v |= (1 << 24);
335 omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
336
337 /*
338 * Make sure the serial ports are muxed on at this point.
339 * You have to mux them off in device drivers later on
340 * if not needed.
341 */
342 apollon_smc91x_resources[1].start = gpio_to_irq(APOLLON_ETHR_GPIO_IRQ);
343 apollon_smc91x_resources[1].end = gpio_to_irq(APOLLON_ETHR_GPIO_IRQ);
344 platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
345 omap_serial_init();
346 omap_sdrc_init(NULL, NULL);
347 omap_display_init(&apollon_dss_data);
348 }
349
350 MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
351 /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
352 .atag_offset = 0x100,
353 .reserve = omap_reserve,
354 .map_io = omap242x_map_io,
355 .init_early = omap2420_init_early,
356 .init_irq = omap2_init_irq,
357 .handle_irq = omap2_intc_handle_irq,
358 .init_machine = omap_apollon_init,
359 .timer = &omap2_timer,
360 .restart = omap_prcm_restart,
361 MACHINE_END
362