u-boot/board/nvidia/cardhu/cardhu.c
Stephen Warren dfb42fc95d ARM: tegra: pinmux naming consistency fixes
Clean up the naming of pinmux-related objects:
* Refer to drive groups rather than pad groups to match the Linux kernel.
* Ensure all pinmux API types are prefixed with pmux_, values (defines)
  are prefixed with PMUX_, and functions prefixed with pinmux_.
* Modify a few type names to make their content clearer.
* Minimal changes to SoC-specific .h/.c files are made so the code still
  compiles. A separate per-SoC change will be made immediately following,
  in order to keep individual patch size down.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2014-04-17 08:41:05 -07:00

78 lines
1.6 KiB
C

/*
* (C) Copyright 2010-2013
* NVIDIA Corporation <www.nvidia.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/pinmux.h>
#include <asm/arch/gp_padctrl.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_TEGRA_MMC)
/*
* Do I2C/PMU writes to bring up SD card bus power
*
*/
void board_sdmmc_voltage_init(void)
{
uchar reg, data_buffer[1];
int i;
i2c_set_bus_num(0); /* PMU is on bus 0 */
/* TPS659110: LDO5_REG = 3.3v, ACTIVE to SDMMC1 */
data_buffer[0] = 0x65;
reg = 0x32;
for (i = 0; i < MAX_I2C_RETRY; ++i) {
if (i2c_write(PMU_I2C_ADDRESS, reg, 1, 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 (i2c_write(PMU_I2C_ADDRESS, reg, 1, 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 */