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Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -07001/*
2 * linux/arch/arm/mach-omap2/board-omap3evm.c
3 *
4 * Copyright (C) 2008 Texas Instruments
5 *
6 * Modified from mach-omap2/board-3430sdp.c
7 *
8 * Initial code: Syed Mohammed Khasim
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14
15#include <linux/kernel.h>
16#include <linux/init.h>
17#include <linux/platform_device.h>
18#include <linux/delay.h>
19#include <linux/err.h>
20#include <linux/clk.h>
21#include <linux/gpio.h>
22#include <linux/input.h>
Janusz Krzysztofik61354342009-10-22 14:43:17 -070023#include <linux/input/matrix_keypad.h>
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -070024#include <linux/leds.h>
25
26#include <linux/spi/spi.h>
27#include <linux/spi/ads7846.h>
28#include <linux/i2c/twl4030.h>
Gupta, Ajay Kumare8e2ff42009-07-29 11:58:57 +053029#include <linux/usb/otg.h>
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -070030
31#include <mach/hardware.h>
32#include <asm/mach-types.h>
33#include <asm/mach/arch.h>
34#include <asm/mach/map.h>
35
Tony Lindgrence491cf2009-10-20 09:40:47 -070036#include <plat/board.h>
37#include <plat/mux.h>
38#include <plat/usb.h>
39#include <plat/common.h>
40#include <plat/mcspi.h>
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -070041
42#include "sdram-micron-mt46h32m32lf-6.h"
43#include "mmc-twl4030.h"
44
45#define OMAP3_EVM_TS_GPIO 175
Ajay Kumar Guptae8e51d22009-11-22 10:11:28 -080046#define OMAP3_EVM_EHCI_VBUS 22
47#define OMAP3_EVM_EHCI_SELECT 61
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -070048
49#define OMAP3EVM_ETHR_START 0x2c000000
50#define OMAP3EVM_ETHR_SIZE 1024
Ajay Kumar Guptadb408022009-11-22 10:11:27 -080051#define OMAP3EVM_ETHR_ID_REV 0x50
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -070052#define OMAP3EVM_ETHR_GPIO_IRQ 176
53#define OMAP3EVM_SMC911X_CS 5
54
Ajay Kumar Guptadb408022009-11-22 10:11:27 -080055static u8 omap3_evm_version;
56
57u8 get_omap3_evm_rev(void)
58{
59 return omap3_evm_version;
60}
61EXPORT_SYMBOL(get_omap3_evm_rev);
62
63static void __init omap3_evm_get_revision(void)
64{
65 void __iomem *ioaddr;
66 unsigned int smsc_id;
67
68 /* Ethernet PHY ID is stored at ID_REV register */
69 ioaddr = ioremap_nocache(OMAP3EVM_ETHR_START, SZ_1K);
70 if (!ioaddr)
71 return;
72 smsc_id = readl(ioaddr + OMAP3EVM_ETHR_ID_REV) & 0xFFFF0000;
73 iounmap(ioaddr);
74
75 switch (smsc_id) {
76 /*SMSC9115 chipset*/
77 case 0x01150000:
78 omap3_evm_version = OMAP3EVM_BOARD_GEN_1;
79 break;
80 /*SMSC 9220 chipset*/
81 case 0x92200000:
82 default:
83 omap3_evm_version = OMAP3EVM_BOARD_GEN_2;
84 }
85}
86
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -070087static struct resource omap3evm_smc911x_resources[] = {
88 [0] = {
89 .start = OMAP3EVM_ETHR_START,
90 .end = (OMAP3EVM_ETHR_START + OMAP3EVM_ETHR_SIZE - 1),
91 .flags = IORESOURCE_MEM,
92 },
93 [1] = {
94 .start = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
95 .end = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
96 .flags = IORESOURCE_IRQ,
97 },
98};
99
100static struct platform_device omap3evm_smc911x_device = {
101 .name = "smc911x",
102 .id = -1,
103 .num_resources = ARRAY_SIZE(omap3evm_smc911x_resources),
104 .resource = &omap3evm_smc911x_resources[0],
105};
106
107static inline void __init omap3evm_init_smc911x(void)
108{
109 int eth_cs;
110 struct clk *l3ck;
111 unsigned int rate;
112
113 eth_cs = OMAP3EVM_SMC911X_CS;
114
115 l3ck = clk_get(NULL, "l3_ck");
116 if (IS_ERR(l3ck))
117 rate = 100000000;
118 else
119 rate = clk_get_rate(l3ck);
120
121 if (gpio_request(OMAP3EVM_ETHR_GPIO_IRQ, "SMC911x irq") < 0) {
122 printk(KERN_ERR "Failed to request GPIO%d for smc911x IRQ\n",
123 OMAP3EVM_ETHR_GPIO_IRQ);
124 return;
125 }
126
127 gpio_direction_input(OMAP3EVM_ETHR_GPIO_IRQ);
128}
129
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700130static struct twl4030_hsmmc_info mmc[] = {
131 {
132 .mmc = 1,
133 .wires = 4,
134 .gpio_cd = -EINVAL,
135 .gpio_wp = 63,
136 },
137 {} /* Terminator */
138};
139
140static struct gpio_led gpio_leds[] = {
141 {
142 .name = "omap3evm::ledb",
143 /* normally not visible (board underside) */
144 .default_trigger = "default-on",
145 .gpio = -EINVAL, /* gets replaced */
146 .active_low = true,
147 },
148};
149
150static struct gpio_led_platform_data gpio_led_info = {
151 .leds = gpio_leds,
152 .num_leds = ARRAY_SIZE(gpio_leds),
153};
154
155static struct platform_device leds_gpio = {
156 .name = "leds-gpio",
157 .id = -1,
158 .dev = {
159 .platform_data = &gpio_led_info,
160 },
161};
162
163
164static int omap3evm_twl_gpio_setup(struct device *dev,
165 unsigned gpio, unsigned ngpio)
166{
167 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
168 omap_cfg_reg(L8_34XX_GPIO63);
169 mmc[0].gpio_cd = gpio + 0;
170 twl4030_mmc_init(mmc);
171
172 /*
173 * Most GPIOs are for USB OTG. Some are mostly sent to
174 * the P2 connector; notably LEDA for the LCD backlight.
175 */
176
177 /* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */
178 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
179
180 platform_device_register(&leds_gpio);
181
182 return 0;
183}
184
185static struct twl4030_gpio_platform_data omap3evm_gpio_data = {
186 .gpio_base = OMAP_MAX_GPIO_LINES,
187 .irq_base = TWL4030_GPIO_IRQ_BASE,
188 .irq_end = TWL4030_GPIO_IRQ_END,
189 .use_leds = true,
190 .setup = omap3evm_twl_gpio_setup,
191};
192
193static struct twl4030_usb_data omap3evm_usb_data = {
194 .usb_mode = T2_USB_MODE_ULPI,
195};
196
Tony Lindgren4f543332009-09-24 16:23:16 -0700197static int board_keymap[] = {
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700198 KEY(0, 0, KEY_LEFT),
199 KEY(0, 1, KEY_RIGHT),
200 KEY(0, 2, KEY_A),
201 KEY(0, 3, KEY_B),
202 KEY(1, 0, KEY_DOWN),
203 KEY(1, 1, KEY_UP),
204 KEY(1, 2, KEY_E),
205 KEY(1, 3, KEY_F),
206 KEY(2, 0, KEY_ENTER),
207 KEY(2, 1, KEY_I),
208 KEY(2, 2, KEY_J),
209 KEY(2, 3, KEY_K),
210 KEY(3, 0, KEY_M),
211 KEY(3, 1, KEY_N),
212 KEY(3, 2, KEY_O),
213 KEY(3, 3, KEY_P)
214};
215
Tony Lindgren4f543332009-09-24 16:23:16 -0700216static struct matrix_keymap_data board_map_data = {
217 .keymap = board_keymap,
218 .keymap_size = ARRAY_SIZE(board_keymap),
219};
220
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700221static struct twl4030_keypad_data omap3evm_kp_data = {
Tony Lindgren4f543332009-09-24 16:23:16 -0700222 .keymap_data = &board_map_data,
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700223 .rows = 4,
224 .cols = 4,
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700225 .rep = 1,
226};
227
228static struct twl4030_madc_platform_data omap3evm_madc_data = {
229 .irq_line = 1,
230};
231
Peter Ujfalusie86fa0b2009-10-22 13:26:46 +0300232static struct twl4030_codec_audio_data omap3evm_audio_data = {
233 .audio_mclk = 26000000,
234};
235
236static struct twl4030_codec_data omap3evm_codec_data = {
Peter Ujfalusi6df74ef2009-11-04 09:58:18 +0200237 .audio_mclk = 26000000,
Peter Ujfalusie86fa0b2009-10-22 13:26:46 +0300238 .audio = &omap3evm_audio_data,
239};
240
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700241static struct twl4030_platform_data omap3evm_twldata = {
242 .irq_base = TWL4030_IRQ_BASE,
243 .irq_end = TWL4030_IRQ_END,
244
245 /* platform_data for children goes here */
246 .keypad = &omap3evm_kp_data,
247 .madc = &omap3evm_madc_data,
248 .usb = &omap3evm_usb_data,
249 .gpio = &omap3evm_gpio_data,
Peter Ujfalusie86fa0b2009-10-22 13:26:46 +0300250 .codec = &omap3evm_codec_data,
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700251};
252
253static struct i2c_board_info __initdata omap3evm_i2c_boardinfo[] = {
254 {
255 I2C_BOARD_INFO("twl4030", 0x48),
256 .flags = I2C_CLIENT_WAKE,
257 .irq = INT_34XX_SYS_NIRQ,
258 .platform_data = &omap3evm_twldata,
259 },
260};
261
262static int __init omap3_evm_i2c_init(void)
263{
264 omap_register_i2c_bus(1, 2600, omap3evm_i2c_boardinfo,
265 ARRAY_SIZE(omap3evm_i2c_boardinfo));
266 omap_register_i2c_bus(2, 400, NULL, 0);
267 omap_register_i2c_bus(3, 400, NULL, 0);
268 return 0;
269}
270
271static struct platform_device omap3_evm_lcd_device = {
272 .name = "omap3evm_lcd",
273 .id = -1,
274};
275
276static struct omap_lcd_config omap3_evm_lcd_config __initdata = {
277 .ctrl_name = "internal",
278};
279
280static void ads7846_dev_init(void)
281{
282 if (gpio_request(OMAP3_EVM_TS_GPIO, "ADS7846 pendown") < 0)
283 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
284
285 gpio_direction_input(OMAP3_EVM_TS_GPIO);
286
287 omap_set_gpio_debounce(OMAP3_EVM_TS_GPIO, 1);
288 omap_set_gpio_debounce_time(OMAP3_EVM_TS_GPIO, 0xa);
289}
290
291static int ads7846_get_pendown_state(void)
292{
293 return !gpio_get_value(OMAP3_EVM_TS_GPIO);
294}
295
296struct ads7846_platform_data ads7846_config = {
297 .x_max = 0x0fff,
298 .y_max = 0x0fff,
299 .x_plate_ohms = 180,
300 .pressure_max = 255,
301 .debounce_max = 10,
302 .debounce_tol = 3,
303 .debounce_rep = 1,
304 .get_pendown_state = ads7846_get_pendown_state,
305 .keep_vref_on = 1,
306 .settle_delay_usecs = 150,
307};
308
309static struct omap2_mcspi_device_config ads7846_mcspi_config = {
310 .turbo_mode = 0,
311 .single_channel = 1, /* 0: slave, 1: master */
312};
313
314struct spi_board_info omap3evm_spi_board_info[] = {
315 [0] = {
316 .modalias = "ads7846",
317 .bus_num = 1,
318 .chip_select = 0,
319 .max_speed_hz = 1500000,
320 .controller_data = &ads7846_mcspi_config,
321 .irq = OMAP_GPIO_IRQ(OMAP3_EVM_TS_GPIO),
322 .platform_data = &ads7846_config,
323 },
324};
325
Paul Walmsleyb3c6df32009-09-03 20:14:02 +0300326static struct omap_board_config_kernel omap3_evm_config[] __initdata = {
327 { OMAP_TAG_LCD, &omap3_evm_lcd_config },
328};
329
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700330static void __init omap3_evm_init_irq(void)
331{
Paul Walmsleyb3c6df32009-09-03 20:14:02 +0300332 omap_board_config = omap3_evm_config;
333 omap_board_config_size = ARRAY_SIZE(omap3_evm_config);
Jean Pihet58cda882009-07-24 19:43:25 -0600334 omap2_init_common_hw(mt46h32m32lf6_sdrc_params, NULL);
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700335 omap_init_irq();
336 omap_gpio_init();
337 omap3evm_init_smc911x();
338}
339
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700340static struct platform_device *omap3_evm_devices[] __initdata = {
341 &omap3_evm_lcd_device,
342 &omap3evm_smc911x_device,
343};
344
Felipe Balbi58a54912009-11-22 10:11:01 -0800345static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
346
347 .port_mode[0] = EHCI_HCD_OMAP_MODE_UNKNOWN,
348 .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
349 .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
350
351 .phy_reset = true,
Ajay Kumar Guptae8e51d22009-11-22 10:11:28 -0800352 /* PHY reset GPIO will be runtime programmed based on EVM version */
Felipe Balbi58a54912009-11-22 10:11:01 -0800353 .reset_gpio_port[0] = -EINVAL,
Ajay Kumar Guptae8e51d22009-11-22 10:11:28 -0800354 .reset_gpio_port[1] = -EINVAL,
Felipe Balbi58a54912009-11-22 10:11:01 -0800355 .reset_gpio_port[2] = -EINVAL
356};
357
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700358static void __init omap3_evm_init(void)
359{
Ajay Kumar Guptadb408022009-11-22 10:11:27 -0800360 omap3_evm_get_revision();
361
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700362 omap3_evm_i2c_init();
363
364 platform_add_devices(omap3_evm_devices, ARRAY_SIZE(omap3_evm_devices));
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700365
366 spi_register_board_info(omap3evm_spi_board_info,
367 ARRAY_SIZE(omap3evm_spi_board_info));
368
369 omap_serial_init();
Gupta, Ajay Kumare8e2ff42009-07-29 11:58:57 +0530370#ifdef CONFIG_NOP_USB_XCEIV
371 /* OMAP3EVM uses ISP1504 phy and so register nop transceiver */
372 usb_nop_xceiv_register();
373#endif
Ajay Kumar Guptae8e51d22009-11-22 10:11:28 -0800374 if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2) {
375 /* enable EHCI VBUS using GPIO22 */
376 omap_cfg_reg(AF9_34XX_GPIO22);
377 gpio_request(OMAP3_EVM_EHCI_VBUS, "enable EHCI VBUS");
378 gpio_direction_output(OMAP3_EVM_EHCI_VBUS, 0);
379 gpio_set_value(OMAP3_EVM_EHCI_VBUS, 1);
380
381 /* Select EHCI port on main board */
382 omap_cfg_reg(U3_34XX_GPIO61);
383 gpio_request(OMAP3_EVM_EHCI_SELECT, "select EHCI port");
384 gpio_direction_output(OMAP3_EVM_EHCI_SELECT, 0);
385 gpio_set_value(OMAP3_EVM_EHCI_SELECT, 0);
386
387 /* setup EHCI phy reset config */
388 omap_cfg_reg(AH14_34XX_GPIO21);
389 ehci_pdata.reset_gpio_port[1] = 21;
390
391 } else {
392 /* setup EHCI phy reset on MDC */
393 omap_cfg_reg(AF4_34XX_GPIO135_OUT);
394 ehci_pdata.reset_gpio_port[1] = 135;
395 }
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700396 usb_musb_init();
Felipe Balbi58a54912009-11-22 10:11:01 -0800397 usb_ehci_init(&ehci_pdata);
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700398 ads7846_dev_init();
399}
400
401static void __init omap3_evm_map_io(void)
402{
403 omap2_set_globals_343x();
404 omap2_map_common_io();
405}
406
407MACHINE_START(OMAP3EVM, "OMAP3 EVM")
408 /* Maintainer: Syed Mohammed Khasim - Texas Instruments */
409 .phys_io = 0x48000000,
Santosh Shilimkarb4224b22009-10-19 17:25:55 -0700410 .io_pg_offst = ((0xfa000000) >> 18) & 0xfffc,
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700411 .boot_params = 0x80000100,
412 .map_io = omap3_evm_map_io,
413 .init_irq = omap3_evm_init_irq,
414 .init_machine = omap3_evm_init,
415 .timer = &omap_timer,
416MACHINE_END