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himalaya.c
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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 <[email protected]>
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 
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 
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
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