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authorMarek VaĊĦut <marek.vasut@gmail.com>2008-07-07 12:25:46 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-07-10 07:15:31 -0400
commitb5e4ad57eeffef0ac274413f83be4ef903719ea4 (patch)
tree46f39439864a273809f8f603466c24d9095d3d65 /arch/arm/mach-pxa/palmtx.c
parentf974a8ec96571535ee07880a023bcce0e3f2c76b (diff)
[ARM] 5153/1: Add support for PalmTX handheld computer
PalmTX is PXA27x based device with wifi, bluetooth, touchscreen, sdio slot, irda, keypad, nand flash, pxa framebuffer, serial and usb gadget interface. Supported by this patch is pxafb, touchscreen, irda, keypad and sdio slot. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-pxa/palmtx.c')
-rw-r--r--arch/arm/mach-pxa/palmtx.c342
1 files changed, 342 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/palmtx.c b/arch/arm/mach-pxa/palmtx.c
new file mode 100644
index 000000000000..ae8973279c20
--- /dev/null
+++ b/arch/arm/mach-pxa/palmtx.c
@@ -0,0 +1,342 @@
1/*
2 * Hardware definitions for PalmTX
3 *
4 * Author: Marek Vasut <marek.vasut@gmail.com>
5 *
6 * Based on work of:
7 * Alex Osborne <ato@meshy.org>
8 * Cristiano P. <cristianop@users.sourceforge.net>
9 * Jan Herman <2hp@seznam.cz>
10 * Michal Hrusecky
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as
14 * published by the Free Software Foundation.
15 *
16 * (find more info at www.hackndev.com)
17 *
18 */
19
20#include <linux/platform_device.h>
21#include <linux/delay.h>
22#include <linux/irq.h>
23#include <linux/gpio_keys.h>
24#include <linux/input.h>
25#include <linux/pwm_backlight.h>
26#include <linux/gpio.h>
27
28#include <asm/mach-types.h>
29#include <asm/mach/arch.h>
30#include <asm/mach/map.h>
31
32#include <asm/arch/audio.h>
33#include <asm/arch/palmtx.h>
34#include <asm/arch/mmc.h>
35#include <asm/arch/pxafb.h>
36#include <asm/arch/pxa-regs.h>
37#include <asm/arch/mfp-pxa27x.h>
38#include <asm/arch/irda.h>
39#include <asm/arch/pxa27x_keypad.h>
40#include <asm/arch/udc.h>
41
42#include "generic.h"
43#include "devices.h"
44
45/******************************************************************************
46 * Pin configuration
47 ******************************************************************************/
48static unsigned long palmtx_pin_config[] __initdata = {
49 /* MMC */
50 GPIO32_MMC_CLK,
51 GPIO92_MMC_DAT_0,
52 GPIO109_MMC_DAT_1,
53 GPIO110_MMC_DAT_2,
54 GPIO111_MMC_DAT_3,
55 GPIO112_MMC_CMD,
56
57 /* AC97 */
58 GPIO28_AC97_BITCLK,
59 GPIO29_AC97_SDATA_IN_0,
60 GPIO30_AC97_SDATA_OUT,
61 GPIO31_AC97_SYNC,
62
63 /* IrDA */
64 GPIO46_FICP_RXD,
65 GPIO47_FICP_TXD,
66
67 /* PWM */
68 GPIO16_PWM0_OUT,
69
70 /* USB */
71 GPIO13_GPIO,
72};
73
74/******************************************************************************
75 * SD/MMC card controller
76 ******************************************************************************/
77static int palmtx_mci_init(struct device *dev, irq_handler_t palmtx_detect_int,
78 void *data)
79{
80 int err = 0;
81
82 /* Setup an interrupt for detecting card insert/remove events */
83 err = request_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, palmtx_detect_int,
84 IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
85 IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
86 "SD/MMC card detect", data);
87 if (err) {
88 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
89 __func__);
90 return err;
91 }
92
93 err = gpio_request(GPIO_NR_PALMTX_SD_POWER, "SD_POWER");
94 if (err)
95 goto pwr_err;
96
97 err = gpio_request(GPIO_NR_PALMTX_SD_READONLY, "SD_READONLY");
98 if (err)
99 goto ro_err;
100
101 printk(KERN_DEBUG "%s: irq registered\n", __func__);
102
103 return 0;
104
105ro_err:
106 gpio_free(GPIO_NR_PALMTX_SD_POWER);
107pwr_err:
108 free_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, data);
109 return err;
110}
111
112static void palmtx_mci_exit(struct device *dev, void *data)
113{
114 gpio_free(GPIO_NR_PALMTX_SD_READONLY);
115 gpio_free(GPIO_NR_PALMTX_SD_POWER);
116 free_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, data);
117}
118
119static void palmtx_mci_power(struct device *dev, unsigned int vdd)
120{
121 struct pxamci_platform_data *p_d = dev->platform_data;
122 gpio_set_value(GPIO_NR_PALMTX_SD_POWER, p_d->ocr_mask & (1 << vdd));
123}
124
125static int palmtx_mci_get_ro(struct device *dev)
126{
127 return gpio_get_value(GPIO_NR_PALMTX_SD_READONLY);
128}
129
130static struct pxamci_platform_data palmtx_mci_platform_data = {
131 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
132 .setpower = palmtx_mci_power,
133 .get_ro = palmtx_mci_get_ro,
134 .init = palmtx_mci_init,
135 .exit = palmtx_mci_exit,
136};
137
138/******************************************************************************
139 * GPIO keyboard
140 ******************************************************************************/
141static unsigned int palmtx_matrix_keys[] = {
142 KEY(0, 0, KEY_POWER),
143 KEY(0, 1, KEY_F1),
144 KEY(0, 2, KEY_ENTER),
145
146 KEY(1, 0, KEY_F2),
147 KEY(1, 1, KEY_F3),
148 KEY(1, 2, KEY_F4),
149
150 KEY(2, 0, KEY_UP),
151 KEY(2, 2, KEY_DOWN),
152
153 KEY(3, 0, KEY_RIGHT),
154 KEY(3, 2, KEY_LEFT),
155
156};
157
158static struct pxa27x_keypad_platform_data palmtx_keypad_platform_data = {
159 .matrix_key_rows = 4,
160 .matrix_key_cols = 3,
161 .matrix_key_map = palmtx_matrix_keys,
162 .matrix_key_map_size = ARRAY_SIZE(palmtx_matrix_keys),
163
164 .debounce_interval = 30,
165};
166
167/******************************************************************************
168 * GPIO keys
169 ******************************************************************************/
170static struct gpio_keys_button palmtx_pxa_buttons[] = {
171 {KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
172};
173
174static struct gpio_keys_platform_data palmtx_pxa_keys_data = {
175 .buttons = palmtx_pxa_buttons,
176 .nbuttons = ARRAY_SIZE(palmtx_pxa_buttons),
177};
178
179static struct platform_device palmtx_pxa_keys = {
180 .name = "gpio-keys",
181 .id = -1,
182 .dev = {
183 .platform_data = &palmtx_pxa_keys_data,
184 },
185};
186
187/******************************************************************************
188 * Backlight
189 ******************************************************************************/
190static int palmtx_backlight_init(struct device *dev)
191{
192 int ret;
193
194 ret = gpio_request(GPIO_NR_PALMTX_BL_POWER, "BL POWER");
195 if (ret)
196 goto err;
197 ret = gpio_request(GPIO_NR_PALMTX_LCD_POWER, "LCD POWER");
198 if (ret)
199 goto err2;
200
201 return 0;
202err2:
203 gpio_free(GPIO_NR_PALMTX_BL_POWER);
204err:
205 return ret;
206}
207
208static int palmtx_backlight_notify(int brightness)
209{
210 gpio_set_value(GPIO_NR_PALMTX_BL_POWER, brightness);
211 gpio_set_value(GPIO_NR_PALMTX_LCD_POWER, brightness);
212 return brightness;
213}
214
215static void palmtx_backlight_exit(struct device *dev)
216{
217 gpio_free(GPIO_NR_PALMTX_BL_POWER);
218 gpio_free(GPIO_NR_PALMTX_LCD_POWER);
219}
220
221static struct platform_pwm_backlight_data palmtx_backlight_data = {
222 .pwm_id = 0,
223 .max_brightness = PALMTX_MAX_INTENSITY,
224 .dft_brightness = PALMTX_MAX_INTENSITY,
225 .pwm_period_ns = PALMTX_PERIOD_NS,
226 .init = palmtx_backlight_init,
227 .notify = palmtx_backlight_notify,
228 .exit = palmtx_backlight_exit,
229};
230
231static struct platform_device palmtx_backlight = {
232 .name = "pwm-backlight",
233 .dev = {
234 .parent = &pxa27x_device_pwm0.dev,
235 .platform_data = &palmtx_backlight_data,
236 },
237};
238
239/******************************************************************************
240 * IrDA
241 ******************************************************************************/
242static void palmtx_irda_transceiver_mode(struct device *dev, int mode)
243{
244 gpio_set_value(GPIO_NR_PALMTX_IR_DISABLE, mode & IR_OFF);
245 pxa2xx_transceiver_mode(dev, mode);
246}
247
248static struct pxaficp_platform_data palmtx_ficp_platform_data = {
249 .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
250 .transceiver_mode = palmtx_irda_transceiver_mode,
251};
252
253/******************************************************************************
254 * UDC
255 ******************************************************************************/
256static void palmtx_udc_command(int cmd)
257{
258 gpio_set_value(GPIO_NR_PALMTX_USB_POWER, !cmd);
259 udelay(50);
260 gpio_set_value(GPIO_NR_PALMTX_USB_PULLUP, !cmd);
261}
262
263static struct pxa2xx_udc_mach_info palmtx_udc_info __initdata = {
264 .gpio_vbus = GPIO_NR_PALMTX_USB_DETECT_N,
265 .gpio_vbus_inverted = 1,
266 .udc_command = palmtx_udc_command,
267};
268
269/******************************************************************************
270 * Framebuffer
271 ******************************************************************************/
272static struct pxafb_mode_info palmtx_lcd_modes[] = {
273{
274 .pixclock = 57692,
275 .xres = 320,
276 .yres = 480,
277 .bpp = 16,
278
279 .left_margin = 32,
280 .right_margin = 1,
281 .upper_margin = 7,
282 .lower_margin = 1,
283
284 .hsync_len = 4,
285 .vsync_len = 1,
286},
287};
288
289static struct pxafb_mach_info palmtx_lcd_screen = {
290 .modes = palmtx_lcd_modes,
291 .num_modes = ARRAY_SIZE(palmtx_lcd_modes),
292 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
293};
294
295/******************************************************************************
296 * Machine init
297 ******************************************************************************/
298static struct platform_device *devices[] __initdata = {
299#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
300 &palmtx_pxa_keys,
301#endif
302 &palmtx_backlight,
303};
304
305static struct map_desc palmtx_io_desc[] __initdata = {
306{
307 .virtual = PALMTX_PCMCIA_VIRT,
308 .pfn = __phys_to_pfn(PALMTX_PCMCIA_PHYS),
309 .length = PALMTX_PCMCIA_SIZE,
310 .type = MT_DEVICE
311},
312};
313
314static void __init palmtx_map_io(void)
315{
316 pxa_map_io();
317 iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc));
318}
319
320static void __init palmtx_init(void)
321{
322 pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config));
323
324 set_pxa_fb_info(&palmtx_lcd_screen);
325 pxa_set_mci_info(&palmtx_mci_platform_data);
326 pxa_set_udc_info(&palmtx_udc_info);
327 pxa_set_ac97_info(NULL);
328 pxa_set_ficp_info(&palmtx_ficp_platform_data);
329 pxa_set_keypad_info(&palmtx_keypad_platform_data);
330
331 platform_add_devices(devices, ARRAY_SIZE(devices));
332}
333
334MACHINE_START(PALMTX, "Palm T|X")
335 .phys_io = PALMTX_PHYS_IO_START,
336 .io_pg_offst = io_p2v(0x40000000),
337 .boot_params = 0xa0000100,
338 .map_io = palmtx_map_io,
339 .init_irq = pxa27x_init_irq,
340 .timer = &pxa_timer,
341 .init_machine = palmtx_init
342MACHINE_END