u-boot/board/nvidia/cardhu/cardhu.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

130 lines
2.6 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2010-2013
* NVIDIA Corporation <www.nvidia.com>
*/
#include <common.h>
#include <dm.h>
#include <asm/arch/pinmux.h>
#include <asm/arch/gp_padctrl.h>
#include <asm/arch/gpio.h>
#include <asm/gpio.h>
#include "pinmux-config-cardhu.h"
#include <i2c.h>
#define PMU_I2C_ADDRESS 0x2D
#define MAX_I2C_RETRY 3
/*
* 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(cardhu_padctrl, ARRAY_SIZE(cardhu_padctrl));
}
#if defined(CONFIG_MMC_SDHCI_TEGRA)
/*
* Do I2C/PMU writes to bring up SD card bus power
*
*/
void board_sdmmc_voltage_init(void)
{
struct udevice *dev;
uchar reg, data_buffer[1];
int ret;
int i;
ret = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, 1, &dev);
if (ret) {
debug("%s: Cannot find PMIC I2C chip\n", __func__);
return;
}
/* TPS659110: LDO5_REG = 3.3v, ACTIVE to SDMMC1 */
data_buffer[0] = 0x65;
reg = 0x32;
for (i = 0; i < MAX_I2C_RETRY; ++i) {
if (dm_i2c_write(dev, reg, data_buffer, 1))
udelay(100);
}
/* TPS659110: GPIO7_REG = PDEN, output a 1 to EN_3V3_SYS */
data_buffer[0] = 0x09;
reg = 0x67;
for (i = 0; i < MAX_I2C_RETRY; ++i) {
if (dm_i2c_write(dev, reg, data_buffer, 1))
udelay(100);
}
}
/*
* Routine: pin_mux_mmc
* Description: setup the MMC muxes, power rails, etc.
*/
void pin_mux_mmc(void)
{
/*
* NOTE: We don't do mmc-specific pin muxes here.
* They were done globally in pinmux_init().
*/
/* Bring up the SDIO1 power rail */
board_sdmmc_voltage_init();
}
#endif /* MMC */
#ifdef CONFIG_PCI_TEGRA
int tegra_pcie_board_init(void)
{
struct udevice *dev;
u8 addr, data[1];
int err;
err = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, 1, &dev);
if (err) {
debug("failed to find PMU bus\n");
return err;
}
/* TPS659110: LDO1_REG = 1.05V, ACTIVE */
data[0] = 0x15;
addr = 0x30;
err = dm_i2c_write(dev, addr, data, 1);
if (err) {
debug("failed to set VDD supply\n");
return err;
}
/* GPIO: PEX = 3.3V */
err = gpio_request(TEGRA_GPIO(L, 7), "PEX");
if (err < 0)
return err;
gpio_direction_output(TEGRA_GPIO(L, 7), 1);
/* TPS659110: LDO2_REG = 1.05V, ACTIVE */
data[0] = 0x15;
addr = 0x31;
err = dm_i2c_write(dev, addr, data, 1);
if (err) {
debug("failed to set AVDD supply\n");
return err;
}
return 0;
}
#endif /* PCI */