colibri-pxa3xx.c
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/*
* arch/arm/mach-pxa/colibri-pxa3xx.c
*
* Common functions for all Toradex PXA3xx modules
*
* Daniel Mack <daniel@caiaq.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/etherdevice.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <asm/sizes.h>
#include <asm/system_info.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
#include <mach/pxa3xx-regs.h>
#include <mach/mfp-pxa300.h>
#include <mach/colibri.h>
#include <linux/platform_data/mmc-pxamci.h>
#include <linux/platform_data/video-pxafb.h>
#include <linux/platform_data/mtd-nand-pxa3xx.h>
#include "generic.h"
#include "devices.h"
#if defined(CONFIG_AX88796)
#define ETHER_ADDR_LEN 6
static u8 ether_mac_addr[ETHER_ADDR_LEN];
void __init colibri_pxa3xx_init_eth(struct ax_plat_data *plat_data)
{
int i;
u64 serial = ((u64) system_serial_high << 32) | system_serial_low;
/*
* If the bootloader passed in a serial boot tag, which contains a
* valid ethernet MAC, pass it to the interface. Toradex ships the
* modules with their own bootloader which provides a valid MAC
* this way.
*/
for (i = 0; i < ETHER_ADDR_LEN; i++) {
ether_mac_addr[i] = serial & 0xff;
serial >>= 8;
}
if (is_valid_ether_addr(ether_mac_addr)) {
plat_data->flags |= AXFLG_MAC_FROMPLATFORM;
plat_data->mac_addr = ether_mac_addr;
printk(KERN_INFO "%s(): taking MAC from serial boot tag\n",
__func__);
} else {
plat_data->flags |= AXFLG_MAC_FROMDEV;
printk(KERN_INFO "%s(): no valid serial boot tag found, "
"taking MAC from device\n", __func__);
}
}
#endif
#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
static int lcd_bl_pin;
/*
* LCD panel (Sharp LQ043T3DX02)
*/
static void colibri_lcd_backlight(int on)
{
gpio_set_value(lcd_bl_pin, !!on);
}
static struct pxafb_mode_info sharp_lq43_mode = {
.pixclock = 101936,
.xres = 480,
.yres = 272,
.bpp = 32,
.depth = 18,
.hsync_len = 41,
.left_margin = 2,
.right_margin = 2,
.vsync_len = 10,
.upper_margin = 2,
.lower_margin = 2,
.sync = 0,
.cmap_greyscale = 0,
};
static struct pxafb_mach_info sharp_lq43_info = {
.modes = &sharp_lq43_mode,
.num_modes = 1,
.cmap_inverse = 0,
.cmap_static = 0,
.lcd_conn = LCD_COLOR_TFT_18BPP,
.pxafb_backlight_power = colibri_lcd_backlight,
};
void __init colibri_pxa3xx_init_lcd(int bl_pin)
{
lcd_bl_pin = bl_pin;
gpio_request(bl_pin, "lcd backlight");
gpio_direction_output(bl_pin, 0);
pxa_set_fb_info(NULL, &sharp_lq43_info);
}
#endif
#if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
static struct mtd_partition colibri_nand_partitions[] = {
{
.name = "bootloader",
.offset = 0,
.size = SZ_512K,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
{
.name = "kernel",
.offset = MTDPART_OFS_APPEND,
.size = SZ_4M,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
{
.name = "reserved",
.offset = MTDPART_OFS_APPEND,
.size = SZ_1M,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
{
.name = "fs",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static struct pxa3xx_nand_platform_data colibri_nand_info = {
.enable_arbiter = 1,
.keep_config = 1,
.num_cs = 1,
.parts[0] = colibri_nand_partitions,
.nr_parts[0] = ARRAY_SIZE(colibri_nand_partitions),
};
void __init colibri_pxa3xx_init_nand(void)
{
pxa3xx_set_nand_info(&colibri_nand_info);
}
#endif