1 /*
2 * linux/arch/arm/mach-pxa/himalaya.c
3 *
4 * Hardware definitions for the HTC Himalaya
5 *
6 * Based on 2.6.21-hh20's himalaya.c and himalaya_lcd.c
7 *
8 * Copyright (c) 2008 Zbynek Michl <Zbynek.Michl@seznam.cz>
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/device.h>
18 #include <linux/fb.h>
19 #include <linux/platform_device.h>
20
21 #include <video/w100fb.h>
22
23 #include <asm/setup.h>
24 #include <asm/mach-types.h>
25 #include <asm/mach/arch.h>
26
27 #include <mach/pxa25x.h>
28
29 #include "generic.h"
30
31 /* ---------------------- Himalaya LCD definitions -------------------- */
32
33 static struct w100_gen_regs himalaya_lcd_regs = {
34 .lcd_format = 0x00000003,
35 .lcdd_cntl1 = 0x00000000,
36 .lcdd_cntl2 = 0x0003ffff,
37 .genlcd_cntl1 = 0x00fff003,
38 .genlcd_cntl2 = 0x00000003,
39 .genlcd_cntl3 = 0x000102aa,
40 };
41
42 static struct w100_mode himalaya4_lcd_mode = {
43 .xres = 240,
44 .yres = 320,
45 .left_margin = 0,
46 .right_margin = 31,
47 .upper_margin = 15,
48 .lower_margin = 0,
49 .crtc_ss = 0x80150014,
50 .crtc_ls = 0xa0fb00f7,
51 .crtc_gs = 0xc0080007,
52 .crtc_vpos_gs = 0x00080007,
53 .crtc_rev = 0x0000000a,
54 .crtc_dclk = 0x81700030,
55 .crtc_gclk = 0x8015010f,
56 .crtc_goe = 0x00000000,
57 .pll_freq = 80,
58 .pixclk_divider = 15,
59 .pixclk_divider_rotated = 15,
60 .pixclk_src = CLK_SRC_PLL,
61 .sysclk_divider = 0,
62 .sysclk_src = CLK_SRC_PLL,
63 };
64
65 static struct w100_mode himalaya6_lcd_mode = {
66 .xres = 240,
67 .yres = 320,
68 .left_margin = 9,
69 .right_margin = 8,
70 .upper_margin = 5,
71 .lower_margin = 4,
72 .crtc_ss = 0x80150014,
73 .crtc_ls = 0xa0fb00f7,
74 .crtc_gs = 0xc0080007,
75 .crtc_vpos_gs = 0x00080007,
76 .crtc_rev = 0x0000000a,
77 .crtc_dclk = 0xa1700030,
78 .crtc_gclk = 0x8015010f,
79 .crtc_goe = 0x00000000,
80 .pll_freq = 95,
81 .pixclk_divider = 0xb,
82 .pixclk_divider_rotated = 4,
83 .pixclk_src = CLK_SRC_PLL,
84 .sysclk_divider = 1,
85 .sysclk_src = CLK_SRC_PLL,
86 };
87
88 static struct w100_gpio_regs himalaya_w100_gpio_info = {
89 .init_data1 = 0xffff0000, /* GPIO_DATA */
90 .gpio_dir1 = 0x00000000, /* GPIO_CNTL1 */
91 .gpio_oe1 = 0x003c0000, /* GPIO_CNTL2 */
92 .init_data2 = 0x00000000, /* GPIO_DATA2 */
93 .gpio_dir2 = 0x00000000, /* GPIO_CNTL3 */
94 .gpio_oe2 = 0x00000000, /* GPIO_CNTL4 */
95 };
96
97 static struct w100fb_mach_info himalaya_fb_info = {
98 .num_modes = 1,
99 .regs = &himalaya_lcd_regs,
100 .gpio = &himalaya_w100_gpio_info,
101 .xtal_freq = 16000000,
102 };
103
104 static struct resource himalaya_fb_resources[] = {
105 [0] = {
106 .start = 0x08000000,
107 .end = 0x08ffffff,
108 .flags = IORESOURCE_MEM,
109 },
110 };
111
112 static struct platform_device himalaya_fb_device = {
113 .name = "w100fb",
114 .id = -1,
115 .dev = {
116 .platform_data = &himalaya_fb_info,
117 },
118 .num_resources = ARRAY_SIZE(himalaya_fb_resources),
119 .resource = himalaya_fb_resources,
120 };
121
122 /* ----------------------------------------------------------------------- */
123
124 static struct platform_device *devices[] __initdata = {
125 &himalaya_fb_device,
126 };
127
himalaya_lcd_init(void)128 static void __init himalaya_lcd_init(void)
129 {
130 int himalaya_boardid;
131
132 himalaya_boardid = 0x4; /* hardcoded (detection needs ASIC3 functions) */
133 printk(KERN_INFO "himalaya LCD Driver init. boardid=%d\n",
134 himalaya_boardid);
135
136 switch (himalaya_boardid) {
137 case 0x4:
138 himalaya_fb_info.modelist = &himalaya4_lcd_mode;
139 break;
140 case 0x6:
141 himalaya_fb_info.modelist = &himalaya6_lcd_mode;
142 break;
143 default:
144 printk(KERN_INFO "himalaya lcd_init: unknown boardid=%d. Using 0x4\n",
145 himalaya_boardid);
146 himalaya_fb_info.modelist = &himalaya4_lcd_mode;
147 }
148 }
149
himalaya_init(void)150 static void __init himalaya_init(void)
151 {
152 pxa_set_ffuart_info(NULL);
153 pxa_set_btuart_info(NULL);
154 pxa_set_stuart_info(NULL);
155 himalaya_lcd_init();
156 platform_add_devices(devices, ARRAY_SIZE(devices));
157 }
158
159
160 MACHINE_START(HIMALAYA, "HTC Himalaya")
161 .atag_offset = 0x100,
162 .map_io = pxa25x_map_io,
163 .nr_irqs = PXA_NR_IRQS,
164 .init_irq = pxa25x_init_irq,
165 .handle_irq = pxa25x_handle_irq,
166 .init_machine = himalaya_init,
167 .timer = &pxa_timer,
168 .restart = pxa_restart,
169 MACHINE_END
170