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https://github.com/u-boot/u-boot.git
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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
93 lines
2.1 KiB
C
93 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2013
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* Avionic Design GmbH <www.avionic-design.de>
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*/
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#include <common.h>
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#include <dm.h>
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#include <log.h>
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#include <asm/arch/pinmux.h>
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#include <asm/arch/gp_padctrl.h>
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#include <asm/arch/gpio.h>
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#include <asm/gpio.h>
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#include "pinmux-config-tamonten-ng.h"
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#include <i2c.h>
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#define PMU_I2C_ADDRESS 0x2D
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#define PMU_REG_LDO5 0x32
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#define PMU_REG_LDO_HIGH_POWER 1
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/* Voltage selection for the LDOs with 100mV resolution */
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#define PMU_REG_LDO_SEL_100(mV) ((((mV - 1000) / 100) + 2) << 2)
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#define PMU_REG_LDO_100(st, mV) (PMU_REG_LDO_##st | PMU_REG_LDO_SEL_100(mV))
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#define PMU_LDO5(st, mV) PMU_REG_LDO_100(st, mV)
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void pinmux_init(void)
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{
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pinmux_config_pingrp_table(tamonten_ng_pinmux_common,
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ARRAY_SIZE(tamonten_ng_pinmux_common));
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pinmux_config_pingrp_table(unused_pins_lowpower,
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ARRAY_SIZE(unused_pins_lowpower));
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/* Initialize any non-default pad configs (APB_MISC_GP regs) */
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pinmux_config_drvgrp_table(tamonten_ng_padctrl,
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ARRAY_SIZE(tamonten_ng_padctrl));
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}
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void gpio_early_init(void)
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{
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/* Turn on the alive signal */
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gpio_request(TEGRA_GPIO(V, 2), "ALIVE");
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gpio_direction_output(TEGRA_GPIO(V, 2), 1);
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/* Remove the reset on the external periph */
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gpio_request(TEGRA_GPIO(I, 4), "nRST_PERIPH");
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gpio_direction_output(TEGRA_GPIO(I, 4), 1);
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}
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void pmu_write(uchar reg, uchar data)
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{
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struct udevice *dev;
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int ret;
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ret = i2c_get_chip_for_busnum(4, PMU_I2C_ADDRESS, 1, &dev);
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if (ret) {
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debug("%s: Cannot find PMIC I2C chip\n", __func__);
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return;
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}
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dm_i2c_write(dev, reg, &data, 1);
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}
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/*
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* Do I2C/PMU writes to bring up SD card bus power
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*
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*/
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void board_sdmmc_voltage_init(void)
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{
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/* Enable LDO5 with 3.3v for SDMMC3 */
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pmu_write(PMU_REG_LDO5, PMU_LDO5(HIGH_POWER, 3300));
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/* Switch the power on */
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gpio_request(TEGRA_GPIO(J, 2), "EN_3V3_EMMC");
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gpio_direction_output(TEGRA_GPIO(J, 2), 1);
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}
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/*
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* Routine: pin_mux_mmc
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* Description: setup the MMC muxes, power rails, etc.
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*/
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void pin_mux_mmc(void)
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{
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/*
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* NOTE: We don't do mmc-specific pin muxes here.
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* They were done globally in pinmux_init().
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*/
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/* Bring up the SDIO1 power rail */
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board_sdmmc_voltage_init();
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}
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