1 /*
2 * linux/arch/arm/mach-pxa/idp.c
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 *
8 * Copyright (c) 2001 Cliff Brake, Accelent Systems Inc.
9 *
10 * 2001-09-13: Cliff Brake <cbrake@accelent.com>
11 * Initial code
12 *
13 * 2005-02-15: Cliff Brake <cliff.brake@gmail.com>
14 * <http://www.vibren.com> <http://bec-systems.com>
15 * Updated for 2.6 kernel
16 *
17 */
18
19 #include <linux/init.h>
20 #include <linux/interrupt.h>
21 #include <linux/irq.h>
22 #include <linux/platform_device.h>
23 #include <linux/fb.h>
24
25 #include <asm/setup.h>
26 #include <asm/memory.h>
27 #include <asm/mach-types.h>
28 #include <mach/hardware.h>
29 #include <asm/irq.h>
30
31 #include <asm/mach/arch.h>
32 #include <asm/mach/map.h>
33
34 #include <mach/pxa-regs.h>
35 #include <mach/mfp-pxa25x.h>
36 #include <mach/idp.h>
37 #include <mach/pxafb.h>
38 #include <mach/bitfield.h>
39 #include <mach/mmc.h>
40
41 #include "generic.h"
42 #include "devices.h"
43
44 /* TODO:
45 * - add pxa2xx_audio_ops_t device structure
46 * - Ethernet interrupt
47 */
48
49 static unsigned long idp_pin_config[] __initdata = {
50 /* LCD */
51 GPIO58_LCD_LDD_0,
52 GPIO59_LCD_LDD_1,
53 GPIO60_LCD_LDD_2,
54 GPIO61_LCD_LDD_3,
55 GPIO62_LCD_LDD_4,
56 GPIO63_LCD_LDD_5,
57 GPIO64_LCD_LDD_6,
58 GPIO65_LCD_LDD_7,
59 GPIO66_LCD_LDD_8,
60 GPIO67_LCD_LDD_9,
61 GPIO68_LCD_LDD_10,
62 GPIO69_LCD_LDD_11,
63 GPIO70_LCD_LDD_12,
64 GPIO71_LCD_LDD_13,
65 GPIO72_LCD_LDD_14,
66 GPIO73_LCD_LDD_15,
67 GPIO74_LCD_FCLK,
68 GPIO75_LCD_LCLK,
69 GPIO76_LCD_PCLK,
70
71 /* BTUART */
72 GPIO42_BTUART_RXD,
73 GPIO43_BTUART_TXD,
74 GPIO44_BTUART_CTS,
75 GPIO45_BTUART_RTS,
76
77 /* STUART */
78 GPIO46_STUART_RXD,
79 GPIO47_STUART_TXD,
80
81 /* MMC */
82 GPIO6_MMC_CLK,
83 GPIO8_MMC_CS0,
84
85 /* Ethernet */
86 GPIO33_nCS_5, /* Ethernet CS */
87 GPIO4_GPIO, /* Ethernet IRQ */
88 };
89
90 static struct resource smc91x_resources[] = {
91 [0] = {
92 .start = (IDP_ETH_PHYS + 0x300),
93 .end = (IDP_ETH_PHYS + 0xfffff),
94 .flags = IORESOURCE_MEM,
95 },
96 [1] = {
97 .start = IRQ_GPIO(4),
98 .end = IRQ_GPIO(4),
99 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
100 }
101 };
102
103 static struct platform_device smc91x_device = {
104 .name = "smc91x",
105 .id = 0,
106 .num_resources = ARRAY_SIZE(smc91x_resources),
107 .resource = smc91x_resources,
108 };
109
idp_backlight_power(int on)110 static void idp_backlight_power(int on)
111 {
112 if (on) {
113 IDP_CPLD_LCD |= (1<<1);
114 } else {
115 IDP_CPLD_LCD &= ~(1<<1);
116 }
117 }
118
idp_vlcd(int on)119 static void idp_vlcd(int on)
120 {
121 if (on) {
122 IDP_CPLD_LCD |= (1<<2);
123 } else {
124 IDP_CPLD_LCD &= ~(1<<2);
125 }
126 }
127
idp_lcd_power(int on,struct fb_var_screeninfo * var)128 static void idp_lcd_power(int on, struct fb_var_screeninfo *var)
129 {
130 if (on) {
131 IDP_CPLD_LCD |= (1<<0);
132 } else {
133 IDP_CPLD_LCD &= ~(1<<0);
134 }
135
136 /* call idp_vlcd for now as core driver does not support
137 * both power and vlcd hooks. Note, this is not technically
138 * the correct sequence, but seems to work. Disclaimer:
139 * this may eventually damage the display.
140 */
141
142 idp_vlcd(on);
143 }
144
145 static struct pxafb_mode_info sharp_lm8v31_mode = {
146 .pixclock = 270000,
147 .xres = 640,
148 .yres = 480,
149 .bpp = 16,
150 .hsync_len = 1,
151 .left_margin = 3,
152 .right_margin = 3,
153 .vsync_len = 1,
154 .upper_margin = 0,
155 .lower_margin = 0,
156 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
157 .cmap_greyscale = 0,
158 };
159
160 static struct pxafb_mach_info sharp_lm8v31 = {
161 .modes = &sharp_lm8v31_mode,
162 .num_modes = 1,
163 .cmap_inverse = 0,
164 .cmap_static = 0,
165 .lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL |
166 LCD_AC_BIAS_FREQ(255),
167 .pxafb_backlight_power = &idp_backlight_power,
168 .pxafb_lcd_power = &idp_lcd_power
169 };
170
171 static struct pxamci_platform_data idp_mci_platform_data = {
172 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
173 };
174
idp_init(void)175 static void __init idp_init(void)
176 {
177 printk("idp_init()\n");
178
179 pxa2xx_mfp_config(ARRAY_AND_SIZE(idp_pin_config));
180
181 platform_device_register(&smc91x_device);
182 //platform_device_register(&mst_audio_device);
183 set_pxa_fb_info(&sharp_lm8v31);
184 pxa_set_mci_info(&idp_mci_platform_data);
185 }
186
187 static struct map_desc idp_io_desc[] __initdata = {
188 {
189 .virtual = IDP_COREVOLT_VIRT,
190 .pfn = __phys_to_pfn(IDP_COREVOLT_PHYS),
191 .length = IDP_COREVOLT_SIZE,
192 .type = MT_DEVICE
193 }, {
194 .virtual = IDP_CPLD_VIRT,
195 .pfn = __phys_to_pfn(IDP_CPLD_PHYS),
196 .length = IDP_CPLD_SIZE,
197 .type = MT_DEVICE
198 }
199 };
200
idp_map_io(void)201 static void __init idp_map_io(void)
202 {
203 pxa_map_io();
204 iotable_init(idp_io_desc, ARRAY_SIZE(idp_io_desc));
205 }
206
207
208 MACHINE_START(PXA_IDP, "Vibren PXA255 IDP")
209 /* Maintainer: Vibren Technologies */
210 .phys_io = 0x40000000,
211 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
212 .map_io = idp_map_io,
213 .init_irq = pxa25x_init_irq,
214 .timer = &pxa_timer,
215 .init_machine = idp_init,
216 MACHINE_END
217