mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-25 12:33:41 +00:00
186 lines
4.2 KiB
C
186 lines
4.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2012 Lucas Stach
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <env.h>
|
|
#include <fdt_support.h>
|
|
#include <init.h>
|
|
#include <log.h>
|
|
#include <asm/arch/clock.h>
|
|
#include <asm/arch/funcmux.h>
|
|
#include <asm/arch/pinmux.h>
|
|
#include <asm/arch-tegra/ap.h>
|
|
#include <asm/arch-tegra/board.h>
|
|
#include <asm/arch-tegra/tegra.h>
|
|
#include <asm/global_data.h>
|
|
#include <asm/gpio.h>
|
|
#include <asm/io.h>
|
|
#include <i2c.h>
|
|
#include <nand.h>
|
|
#include <linux/delay.h>
|
|
#include "../common/tdx-common.h"
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#define PMU_I2C_ADDRESS 0x34
|
|
#define MAX_I2C_RETRY 3
|
|
#define PMU_SUPPLYENE 0x14
|
|
#define PMU_SUPPLYENE_SYSINEN (1<<5)
|
|
#define PMU_SUPPLYENE_EXITSLREQ (1<<1)
|
|
|
|
int arch_misc_init(void)
|
|
{
|
|
/* Disable PMIC sleep mode on low supply voltage */
|
|
struct udevice *dev;
|
|
u8 addr, data[1];
|
|
int err;
|
|
|
|
err = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, 1, &dev);
|
|
if (err) {
|
|
debug("%s: Cannot find PMIC I2C chip\n", __func__);
|
|
return err;
|
|
}
|
|
|
|
addr = PMU_SUPPLYENE;
|
|
|
|
err = dm_i2c_read(dev, addr, data, 1);
|
|
if (err) {
|
|
debug("failed to get PMU_SUPPLYENE\n");
|
|
return err;
|
|
}
|
|
|
|
data[0] &= ~PMU_SUPPLYENE_SYSINEN;
|
|
data[0] |= PMU_SUPPLYENE_EXITSLREQ;
|
|
|
|
err = dm_i2c_write(dev, addr, data, 1);
|
|
if (err) {
|
|
debug("failed to set PMU_SUPPLYENE\n");
|
|
return err;
|
|
}
|
|
|
|
/* make sure SODIMM pin 87 nRESET_OUT is released properly */
|
|
pinmux_set_func(PMUX_PINGRP_ATA, PMUX_FUNC_GMI);
|
|
|
|
if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) ==
|
|
NVBOOTTYPE_RECOVERY)
|
|
printf("USB recovery mode\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int checkboard(void)
|
|
{
|
|
printf("Model: Toradex Colibri T20 %dMB V%s\n",
|
|
(gd->ram_size == 0x10000000) ? 256 : 512,
|
|
(get_nand_dev_by_index(0)->erasesize >> 10 == 512) ?
|
|
((gd->ram_size == 0x10000000) ? "1.1B" : "1.1C") : "1.2A");
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
|
|
int ft_board_setup(void *blob, struct bd_info *bd)
|
|
{
|
|
u8 enetaddr[6];
|
|
|
|
/* MAC addr */
|
|
if (eth_env_get_enetaddr("ethaddr", enetaddr)) {
|
|
int err = fdt_find_and_setprop(blob,
|
|
"/usb@7d004000/ethernet@1",
|
|
"local-mac-address", enetaddr, 6, 0);
|
|
|
|
/* Older device trees might have used a different node name */
|
|
if (err < 0)
|
|
err = fdt_find_and_setprop(blob,
|
|
"/usb@7d004000/asix@1",
|
|
"local-mac-address", enetaddr, 6, 0);
|
|
|
|
if (err >= 0)
|
|
puts(" MAC address updated...\n");
|
|
}
|
|
|
|
return ft_common_board_setup(blob, bd);
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_MMC_SDHCI_TEGRA
|
|
/*
|
|
* Routine: pin_mux_mmc
|
|
* Description: setup the pin muxes/tristate values for the SDMMC(s)
|
|
*/
|
|
void pin_mux_mmc(void)
|
|
{
|
|
funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_4_BIT);
|
|
pinmux_tristate_disable(PMUX_PINGRP_GMB);
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_TEGRA_NAND
|
|
void pin_mux_nand(void)
|
|
{
|
|
funcmux_select(PERIPH_ID_NDFLASH, FUNCMUX_NDFLASH_KBC_8_BIT);
|
|
|
|
/*
|
|
* configure pingroup ATC to something unrelated to
|
|
* avoid ATC overriding KBC
|
|
*/
|
|
pinmux_set_func(PMUX_PINGRP_ATC, PMUX_FUNC_GMI);
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_USB_EHCI_TEGRA
|
|
void pin_mux_usb(void)
|
|
{
|
|
/* module internal USB bus to connect ethernet chipset */
|
|
funcmux_select(PERIPH_ID_USB2, FUNCMUX_USB2_ULPI);
|
|
|
|
/* ULPI reference clock output */
|
|
pinmux_set_func(PMUX_PINGRP_CDEV2, PMUX_FUNC_PLLP_OUT4);
|
|
pinmux_tristate_disable(PMUX_PINGRP_CDEV2);
|
|
|
|
/* PHY reset GPIO */
|
|
pinmux_tristate_disable(PMUX_PINGRP_UAC);
|
|
|
|
/* VBus GPIO */
|
|
pinmux_tristate_disable(PMUX_PINGRP_DTE);
|
|
|
|
/* Reset ASIX using LAN_RESET */
|
|
gpio_request(TEGRA_GPIO(V, 4), "LAN_RESET");
|
|
gpio_direction_output(TEGRA_GPIO(V, 4), 0);
|
|
pinmux_tristate_disable(PMUX_PINGRP_GPV);
|
|
udelay(5);
|
|
gpio_set_value(TEGRA_GPIO(V, 4), 1);
|
|
|
|
/* USBH_PEN: USB 1 aka Tegra USB port 3 VBus */
|
|
pinmux_tristate_disable(PMUX_PINGRP_SPIG);
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_VIDEO_TEGRA20
|
|
/*
|
|
* Routine: pin_mux_display
|
|
* Description: setup the pin muxes/tristate values for the LCD interface)
|
|
*/
|
|
void pin_mux_display(void)
|
|
{
|
|
/*
|
|
* Manually untristate BL_ON (PT4 - SODIMM 71) as specified through
|
|
* device-tree
|
|
*/
|
|
pinmux_tristate_disable(PMUX_PINGRP_DTA);
|
|
|
|
pinmux_set_func(PMUX_PINGRP_SDC, PMUX_FUNC_PWM);
|
|
pinmux_tristate_disable(PMUX_PINGRP_SDC);
|
|
}
|
|
|
|
/*
|
|
* Backlight off before OS handover
|
|
*/
|
|
void board_preboot_os(void)
|
|
{
|
|
gpio_request(TEGRA_GPIO(T, 4), "BL_ON");
|
|
gpio_direction_output(TEGRA_GPIO(T, 4), 0);
|
|
}
|
|
#endif
|