mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 00:48:52 +09:00
![Gerard Salvatella](/assets/img/avatar_default.png)
U-Boot typically tears down the display controller before handing control over to Linux. On LCD displays disabling pixel clock leads to a fading out effect with vertical/horizontal lines. Make sure to disable back light before booting Linux. Signed-off-by: Gerard Salvatella <gerard.salvatella@toradex.com> Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
78 lines
1.6 KiB
C
78 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2014-2016
|
|
* Stefan Agner <stefan@agner.ch>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/arch/gp_padctrl.h>
|
|
#include <asm/arch/pinmux.h>
|
|
#include <asm/arch-tegra/ap.h>
|
|
#include <asm/arch-tegra/tegra.h>
|
|
#include <asm/gpio.h>
|
|
#include <asm/io.h>
|
|
#include <i2c.h>
|
|
#include "pinmux-config-colibri_t30.h"
|
|
#include "../common/tdx-common.h"
|
|
|
|
int arch_misc_init(void)
|
|
{
|
|
if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
|
|
NVBOOTTYPE_RECOVERY)
|
|
printf("USB recovery mode\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int checkboard(void)
|
|
{
|
|
puts("Model: Toradex Colibri T30 1GB\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
|
|
int ft_board_setup(void *blob, bd_t *bd)
|
|
{
|
|
return ft_common_board_setup(blob, bd);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Routine: pinmux_init
|
|
* Description: Do individual peripheral pinmux configs
|
|
*/
|
|
void pinmux_init(void)
|
|
{
|
|
pinmux_config_pingrp_table(tegra3_pinmux_common,
|
|
ARRAY_SIZE(tegra3_pinmux_common));
|
|
|
|
pinmux_config_pingrp_table(unused_pins_lowpower,
|
|
ARRAY_SIZE(unused_pins_lowpower));
|
|
|
|
/* Initialize any non-default pad configs (APB_MISC_GP regs) */
|
|
pinmux_config_drvgrp_table(colibri_t30_padctrl,
|
|
ARRAY_SIZE(colibri_t30_padctrl));
|
|
}
|
|
|
|
/*
|
|
* Enable AX88772B USB to LAN controller
|
|
*/
|
|
void pin_mux_usb(void)
|
|
{
|
|
/* Reset ASIX using LAN_RESET */
|
|
gpio_request(TEGRA_GPIO(DD, 0), "LAN_RESET");
|
|
gpio_direction_output(TEGRA_GPIO(DD, 0), 0);
|
|
udelay(5);
|
|
gpio_set_value(TEGRA_GPIO(DD, 0), 1);
|
|
}
|
|
|
|
/*
|
|
* Backlight off before OS handover
|
|
*/
|
|
void board_preboot_os(void)
|
|
{
|
|
gpio_request(TEGRA_GPIO(V, 2), "BL_ON");
|
|
gpio_direction_output(TEGRA_GPIO(V, 2), 0);
|
|
}
|