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/system_info.h>
22#include <asm/mach/arch.h>
23#include <asm/mach/irq.h>
24#include <mach/pxa3xx-regs.h>
25#include <mach/mfp-pxa300.h>
26#include <mach/colibri.h>
27#include <linux/platform_data/mmc-pxamci.h>
28#include <linux/platform_data/video-pxafb.h>
29#include <linux/platform_data/mtd-nand-pxa3xx.h>
30
31#include "generic.h"
32#include "devices.h"
33
34#if defined(CONFIG_AX88796)
35#define ETHER_ADDR_LEN 6
36static u8 ether_mac_addr[ETHER_ADDR_LEN];
37
38void __init colibri_pxa3xx_init_eth(struct ax_plat_data *plat_data)
39{
40	int i;
41	u64 serial = ((u64) system_serial_high << 32) | system_serial_low;
42
43	/*
44	 * If the bootloader passed in a serial boot tag, which contains a
45	 * valid ethernet MAC, pass it to the interface. Toradex ships the
46	 * modules with their own bootloader which provides a valid MAC
47	 * this way.
48	 */
49
50	for (i = 0; i < ETHER_ADDR_LEN; i++) {
51		ether_mac_addr[i] = serial & 0xff;
52		serial >>= 8;
53	}
54
55	if (is_valid_ether_addr(ether_mac_addr)) {
56		plat_data->flags |= AXFLG_MAC_FROMPLATFORM;
57		plat_data->mac_addr = ether_mac_addr;
58		printk(KERN_INFO "%s(): taking MAC from serial boot tag\n",
59			__func__);
60	} else {
61		plat_data->flags |= AXFLG_MAC_FROMDEV;
62		printk(KERN_INFO "%s(): no valid serial boot tag found, "
63			"taking MAC from device\n", __func__);
64	}
65}
66#endif
67
68#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
69static int lcd_bl_pin;
70
71/*
72 * LCD panel (Sharp LQ043T3DX02)
73 */
74static void colibri_lcd_backlight(int on)
75{
76	gpio_set_value(lcd_bl_pin, !!on);
77}
78
79static struct pxafb_mode_info sharp_lq43_mode = {
80	.pixclock	= 101936,
81	.xres		= 480,
82	.yres		= 272,
83	.bpp		= 32,
84	.depth		= 18,
85	.hsync_len      = 41,
86	.left_margin    = 2,
87	.right_margin   = 2,
88	.vsync_len      = 10,
89	.upper_margin   = 2,
90	.lower_margin   = 2,
91	.sync	   	= 0,
92	.cmap_greyscale = 0,
93};
94
95static struct pxafb_mach_info sharp_lq43_info = {
96	.modes		= &sharp_lq43_mode,
97	.num_modes	= 1,
98	.cmap_inverse	= 0,
99	.cmap_static	= 0,
100	.lcd_conn	= LCD_COLOR_TFT_18BPP,
101	.pxafb_backlight_power = colibri_lcd_backlight,
102};
103
104void __init colibri_pxa3xx_init_lcd(int bl_pin)
105{
106	lcd_bl_pin = bl_pin;
107	gpio_request(bl_pin, "lcd backlight");
108	gpio_direction_output(bl_pin, 0);
109	pxa_set_fb_info(NULL, &sharp_lq43_info);
110}
111#endif
112
113#if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
114static struct mtd_partition colibri_nand_partitions[] = {
115	{
116		.name        = "bootloader",
117		.offset      = 0,
118		.size        = SZ_512K,
119		.mask_flags  = MTD_WRITEABLE, /* force read-only */
120	},
121	{
122		.name        = "kernel",
123		.offset      = MTDPART_OFS_APPEND,
124		.size        = SZ_4M,
125		.mask_flags  = MTD_WRITEABLE, /* force read-only */
126	},
127	{
128		.name        = "reserved",
129		.offset      = MTDPART_OFS_APPEND,
130		.size        = SZ_1M,
131		.mask_flags  = MTD_WRITEABLE, /* force read-only */
132	},
133	{
134		.name        = "fs",
135		.offset      = MTDPART_OFS_APPEND,
136		.size        = MTDPART_SIZ_FULL,
137	},
138};
139
140static struct pxa3xx_nand_platform_data colibri_nand_info = {
141	.enable_arbiter	= 1,
142	.keep_config	= 1,
143	.num_cs		= 1,
144	.parts[0]	= colibri_nand_partitions,
145	.nr_parts[0]	= ARRAY_SIZE(colibri_nand_partitions),
146};
147
148void __init colibri_pxa3xx_init_nand(void)
149{
150	pxa3xx_set_nand_info(&colibri_nand_info);
151}
152#endif
153
154