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authorMarek Vasut <marek.vasut@gmail.com>2009-03-23 19:29:29 -0400
committerEric Miao <eric.miao@marvell.com>2009-04-03 22:26:33 -0400
commit54088bf50f31e5f20e005922dae8948f9f856b79 (patch)
tree3dbd716a51e170749f121dfc4fcde4dce77b6b50 /arch
parentc9be0e39618984b925ec758c1384853db4435ea8 (diff)
[ARM] pxa: Palm Tungsten E2 basic support
This contains support for keypad, MMC, AC97, LCD and backlight. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Eric Miao <eric.miao@marvell.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-pxa/Kconfig9
-rw-r--r--arch/arm/mach-pxa/Makefile1
-rw-r--r--arch/arm/mach-pxa/include/mach/palmte2.h43
-rw-r--r--arch/arm/mach-pxa/palmte2.c278
4 files changed, 331 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 96a2006cb597..3e66d9099eab 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -343,6 +343,15 @@ config ARCH_PXA_PALM
343 bool "PXA based Palm PDAs" 343 bool "PXA based Palm PDAs"
344 select HAVE_PWM 344 select HAVE_PWM
345 345
346config MACH_PALMTE2
347 bool "Palm Tungsten|E2"
348 default y
349 depends on ARCH_PXA_PALM
350 select PXA25x
351 help
352 Say Y here if you intend to run this kernel on a Palm Tungsten|E2
353 handheld computer.
354
346config MACH_PALMT5 355config MACH_PALMT5
347 bool "Palm Tungsten|T5" 356 bool "Palm Tungsten|T5"
348 default y 357 default y
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index c80e1bac4945..682dbf4e14b0 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -57,6 +57,7 @@ obj-$(CONFIG_MACH_E740) += e740.o
57obj-$(CONFIG_MACH_E750) += e750.o 57obj-$(CONFIG_MACH_E750) += e750.o
58obj-$(CONFIG_MACH_E400) += e400.o 58obj-$(CONFIG_MACH_E400) += e400.o
59obj-$(CONFIG_MACH_E800) += e800.o 59obj-$(CONFIG_MACH_E800) += e800.o
60obj-$(CONFIG_MACH_PALMTE2) += palmte2.o
60obj-$(CONFIG_MACH_PALMT5) += palmt5.o 61obj-$(CONFIG_MACH_PALMT5) += palmt5.o
61obj-$(CONFIG_MACH_PALMTX) += palmtx.o 62obj-$(CONFIG_MACH_PALMTX) += palmtx.o
62obj-$(CONFIG_MACH_PALMLD) += palmld.o 63obj-$(CONFIG_MACH_PALMLD) += palmld.o
diff --git a/arch/arm/mach-pxa/include/mach/palmte2.h b/arch/arm/mach-pxa/include/mach/palmte2.h
new file mode 100644
index 000000000000..808ee7faf5ba
--- /dev/null
+++ b/arch/arm/mach-pxa/include/mach/palmte2.h
@@ -0,0 +1,43 @@
1/*
2 * GPIOs and interrupts for Palm Tungsten|E2 Handheld Computer
3 *
4 * Author:
5 * Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 */
12
13#ifndef _INCLUDE_PALMTE2_H_
14#define _INCLUDE_PALMTE2_H_
15
16/** HERE ARE GPIOs **/
17
18/* GPIOs */
19#define GPIO_NR_PALMTE2_SD_DETECT_N 10
20#define GPIO_NR_PALMTE2_SD_POWER 55
21#define GPIO_NR_PALMTE2_SD_READONLY 51
22
23/* KEYS */
24#define GPIO_NR_PALMTE2_KEY_NOTES 5
25#define GPIO_NR_PALMTE2_KEY_TASKS 7
26#define GPIO_NR_PALMTE2_KEY_CALENDAR 11
27#define GPIO_NR_PALMTE2_KEY_CONTACTS 13
28#define GPIO_NR_PALMTE2_KEY_CENTER 14
29#define GPIO_NR_PALMTE2_KEY_LEFT 19
30#define GPIO_NR_PALMTE2_KEY_RIGHT 20
31#define GPIO_NR_PALMTE2_KEY_DOWN 21
32#define GPIO_NR_PALMTE2_KEY_UP 22
33
34/** HERE ARE INIT VALUES **/
35
36/* BACKLIGHT */
37#define PALMTE2_MAX_INTENSITY 0xFE
38#define PALMTE2_DEFAULT_INTENSITY 0x7E
39#define PALMTE2_LIMIT_MASK 0x7F
40#define PALMTE2_PRESCALER 0x3F
41#define PALMTE2_PERIOD_NS 3500
42
43#endif
diff --git a/arch/arm/mach-pxa/palmte2.c b/arch/arm/mach-pxa/palmte2.c
new file mode 100644
index 000000000000..e0dc655ae83a
--- /dev/null
+++ b/arch/arm/mach-pxa/palmte2.c
@@ -0,0 +1,278 @@
1/*
2 * Hardware definitions for Palm Tungsten|E2
3 *
4 * Author:
5 * Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>
6 *
7 * Rewrite for mainline:
8 * Marek Vasut <marek.vasut@gmail.com>
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 * (find more info at www.hackndev.com)
15 *
16 */
17
18#include <linux/platform_device.h>
19#include <linux/delay.h>
20#include <linux/irq.h>
21#include <linux/gpio_keys.h>
22#include <linux/input.h>
23#include <linux/pwm_backlight.h>
24#include <linux/gpio.h>
25
26#include <asm/mach-types.h>
27#include <asm/mach/arch.h>
28#include <asm/mach/map.h>
29
30#include <mach/audio.h>
31#include <mach/palmte2.h>
32#include <mach/mmc.h>
33#include <mach/pxafb.h>
34#include <mach/mfp-pxa25x.h>
35
36#include "generic.h"
37#include "devices.h"
38
39/******************************************************************************
40 * Pin configuration
41 ******************************************************************************/
42static unsigned long palmte2_pin_config[] __initdata = {
43 /* MMC */
44 GPIO6_MMC_CLK,
45 GPIO8_MMC_CS0,
46 GPIO10_GPIO, /* SD detect */
47 GPIO55_GPIO, /* SD power */
48 GPIO51_GPIO, /* SD r/o switch */
49
50 /* AC97 */
51 GPIO28_AC97_BITCLK,
52 GPIO29_AC97_SDATA_IN_0,
53 GPIO30_AC97_SDATA_OUT,
54 GPIO31_AC97_SYNC,
55
56 /* PWM */
57 GPIO16_PWM0_OUT,
58
59 /* LCD */
60 GPIO58_LCD_LDD_0,
61 GPIO59_LCD_LDD_1,
62 GPIO60_LCD_LDD_2,
63 GPIO61_LCD_LDD_3,
64 GPIO62_LCD_LDD_4,
65 GPIO63_LCD_LDD_5,
66 GPIO64_LCD_LDD_6,
67 GPIO65_LCD_LDD_7,
68 GPIO66_LCD_LDD_8,
69 GPIO67_LCD_LDD_9,
70 GPIO68_LCD_LDD_10,
71 GPIO69_LCD_LDD_11,
72 GPIO70_LCD_LDD_12,
73 GPIO71_LCD_LDD_13,
74 GPIO72_LCD_LDD_14,
75 GPIO73_LCD_LDD_15,
76 GPIO74_LCD_FCLK,
77 GPIO75_LCD_LCLK,
78 GPIO76_LCD_PCLK,
79
80 /* GPIO KEYS */
81 GPIO5_GPIO, /* notes */
82 GPIO7_GPIO, /* tasks */
83 GPIO11_GPIO, /* calendar */
84 GPIO13_GPIO, /* contacts */
85 GPIO14_GPIO, /* center */
86 GPIO19_GPIO, /* left */
87 GPIO20_GPIO, /* right */
88 GPIO21_GPIO, /* down */
89 GPIO22_GPIO, /* up */
90
91 /* MISC */
92 GPIO1_RST, /* reset */
93};
94
95/******************************************************************************
96 * SD/MMC card controller
97 ******************************************************************************/
98static int palmte2_mci_init(struct device *dev,
99 irq_handler_t palmte2_detect_int, void *data)
100{
101 int err = 0;
102
103 /* Setup an interrupt for detecting card insert/remove events */
104 err = gpio_request(GPIO_NR_PALMTE2_SD_DETECT_N, "SD IRQ");
105 if (err)
106 goto err;
107 err = gpio_direction_input(GPIO_NR_PALMTE2_SD_DETECT_N);
108 if (err)
109 goto err2;
110 err = request_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N),
111 palmte2_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
112 IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
113 "SD/MMC card detect", data);
114 if (err) {
115 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
116 __func__);
117 goto err2;
118 }
119
120 err = gpio_request(GPIO_NR_PALMTE2_SD_POWER, "SD_POWER");
121 if (err)
122 goto err3;
123 err = gpio_direction_output(GPIO_NR_PALMTE2_SD_POWER, 0);
124 if (err)
125 goto err4;
126
127 err = gpio_request(GPIO_NR_PALMTE2_SD_READONLY, "SD_READONLY");
128 if (err)
129 goto err4;
130 err = gpio_direction_input(GPIO_NR_PALMTE2_SD_READONLY);
131 if (err)
132 goto err5;
133
134 printk(KERN_DEBUG "%s: irq registered\n", __func__);
135
136 return 0;
137
138err5:
139 gpio_free(GPIO_NR_PALMTE2_SD_READONLY);
140err4:
141 gpio_free(GPIO_NR_PALMTE2_SD_POWER);
142err3:
143 free_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), data);
144err2:
145 gpio_free(GPIO_NR_PALMTE2_SD_DETECT_N);
146err:
147 return err;
148}
149
150static void palmte2_mci_exit(struct device *dev, void *data)
151{
152 gpio_free(GPIO_NR_PALMTE2_SD_READONLY);
153 gpio_free(GPIO_NR_PALMTE2_SD_POWER);
154 free_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), data);
155 gpio_free(GPIO_NR_PALMTE2_SD_DETECT_N);
156}
157
158static void palmte2_mci_power(struct device *dev, unsigned int vdd)
159{
160 struct pxamci_platform_data *p_d = dev->platform_data;
161 gpio_set_value(GPIO_NR_PALMTE2_SD_POWER, p_d->ocr_mask & (1 << vdd));
162}
163
164static int palmte2_mci_get_ro(struct device *dev)
165{
166 return gpio_get_value(GPIO_NR_PALMTE2_SD_READONLY);
167}
168
169static struct pxamci_platform_data palmte2_mci_platform_data = {
170 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
171 .setpower = palmte2_mci_power,
172 .get_ro = palmte2_mci_get_ro,
173 .init = palmte2_mci_init,
174 .exit = palmte2_mci_exit,
175};
176
177/******************************************************************************
178 * GPIO keys
179 ******************************************************************************/
180static struct gpio_keys_button palmte2_pxa_buttons[] = {
181 {KEY_F1, GPIO_NR_PALMTE2_KEY_CONTACTS, 1, "Contacts" },
182 {KEY_F2, GPIO_NR_PALMTE2_KEY_CALENDAR, 1, "Calendar" },
183 {KEY_F3, GPIO_NR_PALMTE2_KEY_TASKS, 1, "Tasks" },
184 {KEY_F4, GPIO_NR_PALMTE2_KEY_NOTES, 1, "Notes" },
185 {KEY_ENTER, GPIO_NR_PALMTE2_KEY_CENTER, 1, "Center" },
186 {KEY_LEFT, GPIO_NR_PALMTE2_KEY_LEFT, 1, "Left" },
187 {KEY_RIGHT, GPIO_NR_PALMTE2_KEY_RIGHT, 1, "Right" },
188 {KEY_DOWN, GPIO_NR_PALMTE2_KEY_DOWN, 1, "Down" },
189 {KEY_UP, GPIO_NR_PALMTE2_KEY_UP, 1, "Up" },
190};
191
192static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
193 .buttons = palmte2_pxa_buttons,
194 .nbuttons = ARRAY_SIZE(palmte2_pxa_buttons),
195};
196
197static struct platform_device palmte2_pxa_keys = {
198 .name = "gpio-keys",
199 .id = -1,
200 .dev = {
201 .platform_data = &palmte2_pxa_keys_data,
202 },
203};
204
205/******************************************************************************
206 * Backlight
207 ******************************************************************************/
208static struct platform_pwm_backlight_data palmte2_backlight_data = {
209 .pwm_id = 0,
210 .max_brightness = PALMTE2_MAX_INTENSITY,
211 .dft_brightness = PALMTE2_MAX_INTENSITY,
212 .pwm_period_ns = PALMTE2_PERIOD_NS,
213};
214
215static struct platform_device palmte2_backlight = {
216 .name = "pwm-backlight",
217 .dev = {
218 .parent = &pxa25x_device_pwm0.dev,
219 .platform_data = &palmte2_backlight_data,
220 },
221};
222
223/******************************************************************************
224 * Framebuffer
225 ******************************************************************************/
226static struct pxafb_mode_info palmte2_lcd_modes[] = {
227{
228 .pixclock = 77757,
229 .xres = 320,
230 .yres = 320,
231 .bpp = 16,
232
233 .left_margin = 28,
234 .right_margin = 7,
235 .upper_margin = 7,
236 .lower_margin = 5,
237
238 .hsync_len = 4,
239 .vsync_len = 1,
240},
241};
242
243static struct pxafb_mach_info palmte2_lcd_screen = {
244 .modes = palmte2_lcd_modes,
245 .num_modes = ARRAY_SIZE(palmte2_lcd_modes),
246 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
247};
248
249/******************************************************************************
250 * Machine init
251 ******************************************************************************/
252static struct platform_device *devices[] __initdata = {
253#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
254 &palmte2_pxa_keys,
255#endif
256 &palmte2_backlight,
257};
258
259static void __init palmte2_init(void)
260{
261 pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
262
263 set_pxa_fb_info(&palmte2_lcd_screen);
264 pxa_set_mci_info(&palmte2_mci_platform_data);
265 pxa_set_ac97_info(NULL);
266
267 platform_add_devices(devices, ARRAY_SIZE(devices));
268}
269
270MACHINE_START(PALMTE2, "Palm Tungsten|E2")
271 .phys_io = 0x40000000,
272 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
273 .boot_params = 0xa0000100,
274 .map_io = pxa_map_io,
275 .init_irq = pxa25x_init_irq,
276 .timer = &pxa_timer,
277 .init_machine = palmte2_init
278MACHINE_END
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