+// SPDX-License-Identifier: GPL-2.0+
/*
- * (C) Copyright 2010-2012
+ * (C) Copyright 2010-2013
* NVIDIA Corporation <www.nvidia.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
*/
#include <common.h>
+#include <dm.h>
+#include <log.h>
#include <asm/arch/pinmux.h>
+#include <asm/arch/gp_padctrl.h>
+#include <asm/arch/gpio.h>
+#include <asm/gpio.h>
+#include <linux/delay.h>
#include "pinmux-config-cardhu.h"
+#include <i2c.h>
+
+#define PMU_I2C_ADDRESS 0x2D
+#define MAX_I2C_RETRY 3
/*
* Routine: pinmux_init
*/
void pinmux_init(void)
{
- pinmux_config_table(tegra3_pinmux_common,
+ pinmux_config_pingrp_table(tegra3_pinmux_common,
ARRAY_SIZE(tegra3_pinmux_common));
- pinmux_config_table(unused_pins_lowpower,
+ 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 */