1 /*
2 * arch/arm/mach-pxa/colibri-pxa3xx.c
3 *
4 * Common functions for all Toradex PXA3xx modules
5 *
6 * Daniel Mack <daniel@caiaq.de>
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 #include <linux/init.h>
14 #include <linux/kernel.h>
15 #include <linux/platform_device.h>
16 #include <linux/gpio.h>
17 #include <linux/etherdevice.h>
18 #include <asm/mach-types.h>
19 #include <mach/hardware.h>
20 #include <asm/sizes.h>
21 #include <asm/mach/arch.h>
22 #include <asm/mach/irq.h>
23 #include <mach/pxa3xx-regs.h>
24 #include <mach/mfp-pxa300.h>
25 #include <mach/colibri.h>
26 #include <mach/mmc.h>
27 #include <mach/pxafb.h>
28 #include <plat/pxa3xx_nand.h>
29
30 #include "generic.h"
31 #include "devices.h"
32
33 #if defined(CONFIG_AX88796)
34 #define ETHER_ADDR_LEN 6
35 static u8 ether_mac_addr[ETHER_ADDR_LEN];
36
colibri_pxa3xx_init_eth(struct ax_plat_data * plat_data)37 void __init colibri_pxa3xx_init_eth(struct ax_plat_data *plat_data)
38 {
39 int i;
40 u64 serial = ((u64) system_serial_high << 32) | system_serial_low;
41
42 /*
43 * If the bootloader passed in a serial boot tag, which contains a
44 * valid ethernet MAC, pass it to the interface. Toradex ships the
45 * modules with their own bootloader which provides a valid MAC
46 * this way.
47 */
48
49 for (i = 0; i < ETHER_ADDR_LEN; i++) {
50 ether_mac_addr[i] = serial & 0xff;
51 serial >>= 8;
52 }
53
54 if (is_valid_ether_addr(ether_mac_addr)) {
55 plat_data->flags |= AXFLG_MAC_FROMPLATFORM;
56 plat_data->mac_addr = ether_mac_addr;
57 printk(KERN_INFO "%s(): taking MAC from serial boot tag\n",
58 __func__);
59 } else {
60 plat_data->flags |= AXFLG_MAC_FROMDEV;
61 printk(KERN_INFO "%s(): no valid serial boot tag found, "
62 "taking MAC from device\n", __func__);
63 }
64 }
65 #endif
66
67 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
68 static int lcd_bl_pin;
69
70 /*
71 * LCD panel (Sharp LQ043T3DX02)
72 */
colibri_lcd_backlight(int on)73 static void colibri_lcd_backlight(int on)
74 {
75 gpio_set_value(lcd_bl_pin, !!on);
76 }
77
78 static struct pxafb_mode_info sharp_lq43_mode = {
79 .pixclock = 101936,
80 .xres = 480,
81 .yres = 272,
82 .bpp = 32,
83 .depth = 18,
84 .hsync_len = 41,
85 .left_margin = 2,
86 .right_margin = 2,
87 .vsync_len = 10,
88 .upper_margin = 2,
89 .lower_margin = 2,
90 .sync = 0,
91 .cmap_greyscale = 0,
92 };
93
94 static struct pxafb_mach_info sharp_lq43_info = {
95 .modes = &sharp_lq43_mode,
96 .num_modes = 1,
97 .cmap_inverse = 0,
98 .cmap_static = 0,
99 .lcd_conn = LCD_COLOR_TFT_18BPP,
100 .pxafb_backlight_power = colibri_lcd_backlight,
101 };
102
colibri_pxa3xx_init_lcd(int bl_pin)103 void __init colibri_pxa3xx_init_lcd(int bl_pin)
104 {
105 lcd_bl_pin = bl_pin;
106 gpio_request(bl_pin, "lcd backlight");
107 gpio_direction_output(bl_pin, 0);
108 pxa_set_fb_info(NULL, &sharp_lq43_info);
109 }
110 #endif
111
112 #if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
113 static struct mtd_partition colibri_nand_partitions[] = {
114 {
115 .name = "bootloader",
116 .offset = 0,
117 .size = SZ_512K,
118 .mask_flags = MTD_WRITEABLE, /* force read-only */
119 },
120 {
121 .name = "kernel",
122 .offset = MTDPART_OFS_APPEND,
123 .size = SZ_4M,
124 .mask_flags = MTD_WRITEABLE, /* force read-only */
125 },
126 {
127 .name = "reserved",
128 .offset = MTDPART_OFS_APPEND,
129 .size = SZ_1M,
130 .mask_flags = MTD_WRITEABLE, /* force read-only */
131 },
132 {
133 .name = "fs",
134 .offset = MTDPART_OFS_APPEND,
135 .size = MTDPART_SIZ_FULL,
136 },
137 };
138
139 static struct pxa3xx_nand_platform_data colibri_nand_info = {
140 .enable_arbiter = 1,
141 .keep_config = 1,
142 .parts = colibri_nand_partitions,
143 .nr_parts = ARRAY_SIZE(colibri_nand_partitions),
144 };
145
colibri_pxa3xx_init_nand(void)146 void __init colibri_pxa3xx_init_nand(void)
147 {
148 pxa3xx_set_nand_info(&colibri_nand_info);
149 }
150 #endif
151
152