Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
[linux-2.6] / arch / arm / mach-pxa / ezx.c
1 /*
2  *  ezx.c - Common code for the EZX platform.
3  *
4  *  Copyright (C) 2005-2006 Harald Welte <laforge@openezx.org>,
5  *                2007-2008 Daniel Ribeiro <drwyrm@gmail.com>,
6  *                2007-2008 Stefan Schmidt <stefan@datenfreihafen.org>
7  *
8  *  This program is free software; you can redistribute it and/or modify
9  *  it under the terms of the GNU General Public License version 2 as
10  *  published by the Free Software Foundation.
11  *
12  */
13
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
17 #include <linux/delay.h>
18 #include <linux/pwm_backlight.h>
19
20 #include <asm/setup.h>
21 #include <mach/pxafb.h>
22 #include <mach/ohci.h>
23 #include <mach/i2c.h>
24
25 #include <mach/mfp-pxa27x.h>
26 #include <mach/pxa-regs.h>
27 #include <mach/pxa2xx-regs.h>
28 #include <asm/mach-types.h>
29 #include <asm/mach/arch.h>
30
31 #include "devices.h"
32 #include "generic.h"
33
34 static struct platform_pwm_backlight_data ezx_backlight_data = {
35         .pwm_id         = 0,
36         .max_brightness = 1023,
37         .dft_brightness = 1023,
38         .pwm_period_ns  = 78770,
39 };
40
41 static struct platform_device ezx_backlight_device = {
42         .name           = "pwm-backlight",
43         .dev            = {
44                 .parent = &pxa27x_device_pwm0.dev,
45                 .platform_data = &ezx_backlight_data,
46         },
47 };
48
49 static struct pxafb_mode_info mode_ezx_old = {
50         .pixclock               = 150000,
51         .xres                   = 240,
52         .yres                   = 320,
53         .bpp                    = 16,
54         .hsync_len              = 10,
55         .left_margin            = 20,
56         .right_margin           = 10,
57         .vsync_len              = 2,
58         .upper_margin           = 3,
59         .lower_margin           = 2,
60         .sync                   = 0,
61 };
62
63 static struct pxafb_mach_info ezx_fb_info_1 = {
64         .modes          = &mode_ezx_old,
65         .num_modes      = 1,
66         .lcd_conn       = LCD_COLOR_TFT_16BPP,
67 };
68
69 static struct pxafb_mode_info mode_72r89803y01 = {
70         .pixclock               = 192308,
71         .xres                   = 240,
72         .yres                   = 320,
73         .bpp                    = 32,
74         .depth                  = 18,
75         .hsync_len              = 10,
76         .left_margin            = 20,
77         .right_margin           = 10,
78         .vsync_len              = 2,
79         .upper_margin           = 3,
80         .lower_margin           = 2,
81         .sync                   = 0,
82 };
83
84 static struct pxafb_mach_info ezx_fb_info_2 = {
85         .modes          = &mode_72r89803y01,
86         .num_modes      = 1,
87         .lcd_conn       = LCD_COLOR_TFT_18BPP,
88 };
89
90 static struct platform_device *devices[] __initdata = {
91         &ezx_backlight_device,
92 };
93
94 static unsigned long ezx_pin_config[] __initdata = {
95         /* PWM backlight */
96         GPIO16_PWM0_OUT,
97
98         /* BTUART */
99         GPIO42_BTUART_RXD,
100         GPIO43_BTUART_TXD,
101         GPIO44_BTUART_CTS,
102         GPIO45_BTUART_RTS,
103
104         /* STUART */
105         GPIO46_STUART_RXD,
106         GPIO47_STUART_TXD,
107
108         /* For A780 support (connected with Neptune GSM chip) */
109         GPIO30_USB_P3_2,        /* ICL_TXENB */
110         GPIO31_USB_P3_6,        /* ICL_VPOUT */
111         GPIO90_USB_P3_5,        /* ICL_VPIN */
112         GPIO91_USB_P3_1,        /* ICL_XRXD */
113         GPIO56_USB_P3_4,        /* ICL_VMOUT */
114         GPIO113_USB_P3_3,       /* /ICL_VMIN */
115 };
116
117 static void __init ezx_init(void)
118 {
119         pxa2xx_mfp_config(ARRAY_AND_SIZE(ezx_pin_config));
120         pxa_set_i2c_info(NULL);
121         if (machine_is_ezx_a780() || machine_is_ezx_e680())
122                 set_pxa_fb_info(&ezx_fb_info_1);
123         else
124                 set_pxa_fb_info(&ezx_fb_info_2);
125
126         platform_add_devices(devices, ARRAY_SIZE(devices));
127 }
128
129 static void __init ezx_fixup(struct machine_desc *desc, struct tag *tags,
130                 char **cmdline, struct meminfo *mi)
131 {
132         /* We have two ram chips. First one with 32MB at 0xA0000000 and a second
133          * 16MB one at 0xAC000000
134          */
135         mi->nr_banks = 2;
136         mi->bank[0].start = 0xa0000000;
137         mi->bank[0].node = 0;
138         mi->bank[0].size = (32*1024*1024);
139         mi->bank[1].start = 0xac000000;
140         mi->bank[1].node = 1;
141         mi->bank[1].size = (16*1024*1024);
142 }
143
144 #ifdef CONFIG_MACH_EZX_A780
145 MACHINE_START(EZX_A780, "Motorola EZX A780")
146         .phys_io        = 0x40000000,
147         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
148         .fixup                  = ezx_fixup,
149         .boot_params    = 0xa0000100,
150         .map_io         = pxa_map_io,
151         .init_irq       = pxa27x_init_irq,
152         .timer          = &pxa_timer,
153         .init_machine   = &ezx_init,
154 MACHINE_END
155 #endif
156
157 #ifdef CONFIG_MACH_EZX_E680
158 MACHINE_START(EZX_E680, "Motorola EZX E680")
159         .phys_io        = 0x40000000,
160         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
161         .fixup                  = ezx_fixup,
162         .boot_params    = 0xa0000100,
163         .map_io         = pxa_map_io,
164         .init_irq       = pxa27x_init_irq,
165         .timer          = &pxa_timer,
166         .init_machine   = &ezx_init,
167 MACHINE_END
168 #endif
169
170 #ifdef CONFIG_MACH_EZX_A1200
171 MACHINE_START(EZX_A1200, "Motorola EZX A1200")
172         .phys_io        = 0x40000000,
173         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
174         .fixup                  = ezx_fixup,
175         .boot_params    = 0xa0000100,
176         .map_io         = pxa_map_io,
177         .init_irq       = pxa27x_init_irq,
178         .timer          = &pxa_timer,
179         .init_machine   = &ezx_init,
180 MACHINE_END
181 #endif
182
183 #ifdef CONFIG_MACH_EZX_A910
184 MACHINE_START(EZX_A910, "Motorola EZX A910")
185         .phys_io        = 0x40000000,
186         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
187         .fixup                  = ezx_fixup,
188         .boot_params    = 0xa0000100,
189         .map_io         = pxa_map_io,
190         .init_irq       = pxa27x_init_irq,
191         .timer          = &pxa_timer,
192         .init_machine   = &ezx_init,
193 MACHINE_END
194 #endif
195
196 #ifdef CONFIG_MACH_EZX_E6
197 MACHINE_START(EZX_E6, "Motorola EZX E6")
198         .phys_io        = 0x40000000,
199         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
200         .fixup                  = ezx_fixup,
201         .boot_params    = 0xa0000100,
202         .map_io         = pxa_map_io,
203         .init_irq       = pxa27x_init_irq,
204         .timer          = &pxa_timer,
205         .init_machine   = &ezx_init,
206 MACHINE_END
207 #endif
208
209 #ifdef CONFIG_MACH_EZX_E2
210 MACHINE_START(EZX_E2, "Motorola EZX E2")
211         .phys_io        = 0x40000000,
212         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
213         .fixup                  = ezx_fixup,
214         .boot_params    = 0xa0000100,
215         .map_io         = pxa_map_io,
216         .init_irq       = pxa27x_init_irq,
217         .timer          = &pxa_timer,
218         .init_machine   = &ezx_init,
219 MACHINE_END
220 #endif