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 .start = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
140 .end = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
141 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
142 },
143 };
144
145 static struct platform_device apollon_smc91x_device = {
146 .name = "smc91x",
147 .id = -1,
148 .dev = {
149 .platform_data = &appolon_smc91x_info,
150 },
151 .num_resources = ARRAY_SIZE(apollon_smc91x_resources),
152 .resource = apollon_smc91x_resources,
153 };
154
155 static struct omap_led_config apollon_led_config[] = {
156 {
157 .cdev = {
158 .name = "apollon:led0",
159 },
160 .gpio = LED0_GPIO13,
161 },
162 {
163 .cdev = {
164 .name = "apollon:led1",
165 },
166 .gpio = LED1_GPIO14,
167 },
168 {
169 .cdev = {
170 .name = "apollon:led2",
171 },
172 .gpio = LED2_GPIO15,
173 },
174 };
175
176 static struct omap_led_platform_data apollon_led_data = {
177 .nr_leds = ARRAY_SIZE(apollon_led_config),
178 .leds = apollon_led_config,
179 };
180
181 static struct platform_device apollon_led_device = {
182 .name = "omap-led",
183 .id = -1,
184 .dev = {
185 .platform_data = &apollon_led_data,
186 },
187 };
188
189 static struct platform_device *apollon_devices[] __initdata = {
190 &apollon_onenand_device,
191 &apollon_smc91x_device,
192 &apollon_led_device,
193 };
194
apollon_init_smc91x(void)195 static inline void __init apollon_init_smc91x(void)
196 {
197 unsigned long base;
198
199 unsigned int rate;
200 struct clk *gpmc_fck;
201 int eth_cs;
202 int err;
203
204 gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */
205 if (IS_ERR(gpmc_fck)) {
206 WARN_ON(1);
207 return;
208 }
209
210 clk_enable(gpmc_fck);
211 rate = clk_get_rate(gpmc_fck);
212
213 eth_cs = APOLLON_ETH_CS;
214
215 /* Make sure CS1 timings are correct */
216 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
217
218 if (rate >= 160000000) {
219 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
220 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
221 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
222 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
223 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
224 } else if (rate >= 130000000) {
225 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
226 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
227 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
228 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
229 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
230 } else {/* rate = 100000000 */
231 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
232 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
233 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
234 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
235 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
236 }
237
238 if (gpmc_cs_request(APOLLON_ETH_CS, SZ_16M, &base) < 0) {
239 printk(KERN_ERR "Failed to request GPMC CS for smc91x\n");
240 goto out;
241 }
242 apollon_smc91x_resources[0].start = base + 0x300;
243 apollon_smc91x_resources[0].end = base + 0x30f;
244 udelay(100);
245
246 omap_mux_init_gpio(APOLLON_ETHR_GPIO_IRQ, 0);
247 err = gpio_request_one(APOLLON_ETHR_GPIO_IRQ, GPIOF_IN, "SMC91x irq");
248 if (err) {
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 }
253 out:
254 clk_disable(gpmc_fck);
255 clk_put(gpmc_fck);
256 }
257
258 static struct omap_usb_config apollon_usb_config __initdata = {
259 .register_dev = 1,
260 .hmc_mode = 0x14, /* 0:dev 1:host1 2:disable */
261
262 .pins[0] = 6,
263 };
264
265 static struct panel_generic_dpi_data apollon_panel_data = {
266 .name = "apollon",
267 };
268
269 static struct omap_dss_device apollon_lcd_device = {
270 .name = "lcd",
271 .driver_name = "generic_dpi_panel",
272 .type = OMAP_DISPLAY_TYPE_DPI,
273 .phy.dpi.data_lines = 18,
274 .data = &apollon_panel_data,
275 };
276
277 static struct omap_dss_device *apollon_dss_devices[] = {
278 &apollon_lcd_device,
279 };
280
281 static struct omap_dss_board_info apollon_dss_data = {
282 .num_devices = ARRAY_SIZE(apollon_dss_devices),
283 .devices = apollon_dss_devices,
284 .default_device = &apollon_lcd_device,
285 };
286
287 static struct gpio apollon_gpio_leds[] __initdata = {
288 { LED0_GPIO13, GPIOF_OUT_INIT_LOW, "LED0" }, /* LED0 - AA10 */
289 { LED1_GPIO14, GPIOF_OUT_INIT_LOW, "LED1" }, /* LED1 - AA6 */
290 { LED2_GPIO15, GPIOF_OUT_INIT_LOW, "LED2" }, /* LED2 - AA4 */
291 };
292
apollon_led_init(void)293 static void __init apollon_led_init(void)
294 {
295 omap_mux_init_signal("vlynq_clk.gpio_13", 0);
296 omap_mux_init_signal("vlynq_rx1.gpio_14", 0);
297 omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
298
299 gpio_request_array(apollon_gpio_leds, ARRAY_SIZE(apollon_gpio_leds));
300 }
301
apollon_usb_init(void)302 static void __init apollon_usb_init(void)
303 {
304 /* USB device */
305 /* DEVICE_SUSPEND */
306 omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0);
307 gpio_request_one(12, GPIOF_OUT_INIT_LOW, "USB suspend");
308 omap2_usbfs_init(&apollon_usb_config);
309 }
310
311 #ifdef CONFIG_OMAP_MUX
312 static struct omap_board_mux board_mux[] __initdata = {
313 { .reg_offset = OMAP_MUX_TERMINATOR },
314 };
315 #endif
316
omap_apollon_init(void)317 static void __init omap_apollon_init(void)
318 {
319 u32 v;
320
321 omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);
322
323 apollon_init_smc91x();
324 apollon_led_init();
325 apollon_flash_init();
326 apollon_usb_init();
327
328 /* REVISIT: where's the correct place */
329 omap_mux_init_signal("sys_nirq", OMAP_PULL_ENA | OMAP_PULL_UP);
330
331 /* LCD PWR_EN */
332 omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
333
334 /* Use Interal loop-back in MMC/SDIO Module Input Clock selection */
335 v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
336 v |= (1 << 24);
337 omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
338
339 /*
340 * Make sure the serial ports are muxed on at this point.
341 * You have to mux them off in device drivers later on
342 * if not needed.
343 */
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