mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-24 20:13:39 +00:00
855ffdfa65
Nexus 7 is a mini tablet computer co-developed by Google and Asus that runs the Android operating system. The Nexus 7 features a 7" display, an Nvidia Tegra 3 quad-core chip, 1 GB of RAM and 8/16 GB of internal storage. This patch brings support for all 3 known ASUS/Google devices: - Nexus 7 (2012) E1565 - Nexus 7 (2012) PM269 - Nexus 7 (2012) 3G - tilapia Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # ASUS Grouper E1565 Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # ASUS Grouper E1565 Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
202 lines
4.5 KiB
C
202 lines
4.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2010-2013
|
|
* NVIDIA Corporation <www.nvidia.com>
|
|
*
|
|
* (C) Copyright 2021
|
|
* Svyatoslav Ryhel <clamor95@gmail.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <env.h>
|
|
#include <fdt_support.h>
|
|
#include <i2c.h>
|
|
#include <log.h>
|
|
#include <asm/arch/pinmux.h>
|
|
#include <asm/arch/gp_padctrl.h>
|
|
#include <asm/arch/gpio.h>
|
|
#include <asm/arch-tegra/fuse.h>
|
|
#include <asm/gpio.h>
|
|
#include <linux/delay.h>
|
|
#include "pinmux-config-grouper.h"
|
|
|
|
#define TPS65911_I2C_ADDRESS 0x2D
|
|
|
|
#define TPS65911_REG_LDO1 0x30
|
|
#define TPS65911_REG_DEVCTRL 0x3F
|
|
#define DEVCTRL_PWR_OFF_MASK BIT(7)
|
|
#define DEVCTRL_DEV_ON_MASK BIT(2)
|
|
#define DEVCTRL_DEV_OFF_MASK BIT(0)
|
|
|
|
#define MAX77663_I2C_ADDRESS 0x3C
|
|
|
|
#define MAX77663_REG_SD2 0x18
|
|
#define MAX77663_REG_LDO3 0x29
|
|
#define MAX77663_REG_ONOFF_CFG1 0x41
|
|
#define ONOFF_PWR_OFF BIT(1)
|
|
|
|
#ifdef CONFIG_CMD_POWEROFF
|
|
#ifdef CONFIG_GROUPER_TPS65911
|
|
int do_poweroff(struct cmd_tbl *cmdtp,
|
|
int flag, int argc, char *const argv[])
|
|
{
|
|
struct udevice *dev;
|
|
uchar data_buffer[1];
|
|
int ret;
|
|
|
|
ret = i2c_get_chip_for_busnum(0, TPS65911_I2C_ADDRESS, 1, &dev);
|
|
if (ret) {
|
|
log_debug("cannot find PMIC I2C chip\n");
|
|
return 0;
|
|
}
|
|
|
|
ret = dm_i2c_read(dev, TPS65911_REG_DEVCTRL, data_buffer, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
data_buffer[0] |= DEVCTRL_PWR_OFF_MASK;
|
|
|
|
ret = dm_i2c_write(dev, TPS65911_REG_DEVCTRL, data_buffer, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
data_buffer[0] |= DEVCTRL_DEV_OFF_MASK;
|
|
data_buffer[0] &= ~DEVCTRL_DEV_ON_MASK;
|
|
|
|
ret = dm_i2c_write(dev, TPS65911_REG_DEVCTRL, data_buffer, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
// wait some time and then print error
|
|
mdelay(5000);
|
|
|
|
printf("Failed to power off!!!\n");
|
|
return 1;
|
|
}
|
|
#endif /* CONFIG_GROUPER_TPS65911 */
|
|
|
|
#ifdef CONFIG_GROUPER_MAX77663
|
|
int do_poweroff(struct cmd_tbl *cmdtp,
|
|
int flag, int argc, char *const argv[])
|
|
{
|
|
struct udevice *dev;
|
|
uchar data_buffer[1];
|
|
int ret;
|
|
|
|
ret = i2c_get_chip_for_busnum(0, MAX77663_I2C_ADDRESS, 1, &dev);
|
|
if (ret) {
|
|
log_debug("cannot find PMIC I2C chip\n");
|
|
return 0;
|
|
}
|
|
|
|
ret = dm_i2c_read(dev, MAX77663_REG_ONOFF_CFG1, data_buffer, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
data_buffer[0] |= ONOFF_PWR_OFF;
|
|
|
|
ret = dm_i2c_write(dev, MAX77663_REG_ONOFF_CFG1, data_buffer, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
// wait some time and then print error
|
|
mdelay(5000);
|
|
|
|
printf("Failed to power off!!!\n");
|
|
return 1;
|
|
}
|
|
#endif /* CONFIG_GROUPER_MAX77663 */
|
|
#endif /* CONFIG_CMD_POWEROFF */
|
|
|
|
/*
|
|
* Routine: pinmux_init
|
|
* Description: Do individual peripheral pinmux configs
|
|
*/
|
|
void pinmux_init(void)
|
|
{
|
|
pinmux_config_pingrp_table(grouper_pinmux_common,
|
|
ARRAY_SIZE(grouper_pinmux_common));
|
|
|
|
pinmux_config_drvgrp_table(grouper_padctrl,
|
|
ARRAY_SIZE(grouper_padctrl));
|
|
}
|
|
|
|
#ifdef CONFIG_MMC_SDHCI_TEGRA
|
|
static void __maybe_unused tps65911_voltage_init(void)
|
|
{
|
|
struct udevice *dev;
|
|
int ret;
|
|
|
|
ret = i2c_get_chip_for_busnum(0, TPS65911_I2C_ADDRESS, 1, &dev);
|
|
if (ret) {
|
|
log_debug("cannot find PMIC I2C chip\n");
|
|
return;
|
|
}
|
|
|
|
/* TPS659110: LDO1_REG = 3.3v, ACTIVE to SDMMC4 */
|
|
ret = dm_i2c_reg_write(dev, TPS65911_REG_LDO1, 0xC9);
|
|
if (ret)
|
|
log_debug("vcore_emmc set failed: %d\n", ret);
|
|
}
|
|
|
|
static void __maybe_unused max77663_voltage_init(void)
|
|
{
|
|
struct udevice *dev;
|
|
int ret;
|
|
|
|
ret = i2c_get_chip_for_busnum(0, MAX77663_I2C_ADDRESS, 1, &dev);
|
|
if (ret) {
|
|
log_debug("cannot find PMIC I2C chip\n");
|
|
return;
|
|
}
|
|
|
|
/* 0x60 for 1.8v, bit7:0 = voltage */
|
|
ret = dm_i2c_reg_write(dev, MAX77663_REG_SD2, 0x60);
|
|
if (ret)
|
|
log_debug("vdd_1v8_vio set failed: %d\n", ret);
|
|
|
|
/* 0xEC for 3.00v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
|
|
ret = dm_i2c_reg_write(dev, MAX77663_REG_LDO3, 0xEC);
|
|
if (ret)
|
|
log_debug("vcore_emmc set failed: %d\n", ret);
|
|
}
|
|
|
|
/*
|
|
* Routine: pin_mux_mmc
|
|
* Description: setup the MMC muxes, power rails, etc.
|
|
*/
|
|
void pin_mux_mmc(void)
|
|
{
|
|
#ifdef CONFIG_GROUPER_MAX77663
|
|
/* Bring up eMMC power on MAX PMIC */
|
|
max77663_voltage_init();
|
|
#endif
|
|
|
|
#ifdef CONFIG_GROUPER_TPS65911
|
|
/* Bring up eMMC power on TI PMIC */
|
|
tps65911_voltage_init();
|
|
#endif
|
|
}
|
|
#endif /* MMC */
|
|
|
|
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
|
|
int ft_board_setup(void *blob, struct bd_info *bd)
|
|
{
|
|
/* Remove TrustZone nodes */
|
|
fdt_del_node_and_alias(blob, "/firmware");
|
|
fdt_del_node_and_alias(blob, "/reserved-memory/trustzone@bfe00000");
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
void nvidia_board_late_init(void)
|
|
{
|
|
char serialno_str[17];
|
|
|
|
/* Set chip id as serialno */
|
|
sprintf(serialno_str, "%016llx", tegra_chip_uid());
|
|
env_set("serial#", serialno_str);
|
|
env_set("platform", "Tegra 3 T30");
|
|
}
|