mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-06 03:06:16 +09:00
83d290c56f
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>
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 <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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