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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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22a0200b18
In 67fca028f1, the ax88796 ethernet driver
learned a way to let the platform data hand in the MAC address. Use it
here as the original Colibri bootloader passes in a MAC address via
ATAG_SERIAL.
Reported-by: Matthias Meier <matthias.j.meier@gmx.net>
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
157 lines
3.7 KiB
C
157 lines
3.7 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/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 <mach/mfp-pxa300.h>
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#include <mach/colibri.h>
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#include <mach/mmc.h>
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#include <mach/pxafb.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_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
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static int mmc_detect_pin;
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static int colibri_pxa3xx_mci_init(struct device *dev,
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irq_handler_t colibri_mmc_detect_int,
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void *data)
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{
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int ret;
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ret = gpio_request(mmc_detect_pin, "mmc card detect");
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if (ret)
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return ret;
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gpio_direction_input(mmc_detect_pin);
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ret = request_irq(gpio_to_irq(mmc_detect_pin), colibri_mmc_detect_int,
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IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
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"MMC card detect", data);
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if (ret) {
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gpio_free(mmc_detect_pin);
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return ret;
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}
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return 0;
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}
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static void colibri_pxa3xx_mci_exit(struct device *dev, void *data)
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{
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free_irq(mmc_detect_pin, data);
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gpio_free(gpio_to_irq(mmc_detect_pin));
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}
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static struct pxamci_platform_data colibri_pxa3xx_mci_platform_data = {
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.detect_delay = 20,
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.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
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.init = colibri_pxa3xx_mci_init,
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.exit = colibri_pxa3xx_mci_exit,
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};
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void __init colibri_pxa3xx_init_mmc(mfp_cfg_t *pins, int len, int detect_pin)
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{
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pxa3xx_mfp_config(pins, len);
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mmc_detect_pin = detect_pin;
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pxa_set_mci_info(&colibri_pxa3xx_mci_platform_data);
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}
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#endif /* CONFIG_MMC_PXA || CONFIG_MMC_PXA_MODULE */
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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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set_pxa_fb_info(&sharp_lq43_info);
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}
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#endif
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