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