GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/board/nvidia/dalmore/dalmore.c

@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2010-2013, NVIDIA CORPORATION.  All rights reserved.
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <asm/arch/pinmux.h>
+#include <asm/arch/gp_padctrl.h>
+#include "pinmux-config-dalmore.h"
+#include <i2c.h>
+
+#define BAT_I2C_ADDRESS		0x48	/* TPS65090 charger */
+#define PMU_I2C_ADDRESS		0x58	/* TPS65913 PMU */
+
+/*
+ * Routine: pinmux_init
+ * Description: Do individual peripheral pinmux configs
+ */
+void pinmux_init(void)
+{
+	pinmux_config_pingrp_table(tegra114_pinmux_set_nontristate,
+		ARRAY_SIZE(tegra114_pinmux_set_nontristate));
+
+	pinmux_config_pingrp_table(tegra114_pinmux_common,
+		ARRAY_SIZE(tegra114_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(dalmore_padctrl,
+		ARRAY_SIZE(dalmore_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;
+
+	ret = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, 1, &dev);
+	if (ret) {
+		debug("%s: Cannot find PMIC I2C chip\n", __func__);
+		return;
+	}
+
+	/* TPS65913: LDO9_VOLTAGE = 3.3V */
+	data_buffer[0] = 0x31;
+	reg = 0x61;
+
+	ret = dm_i2c_write(dev, reg, data_buffer, 1);
+	if (ret)
+		printf("%s: PMU i2c_write %02X<-%02X returned %d\n",
+			__func__, reg, data_buffer[0], ret);
+
+	/* TPS65913: LDO9_CTRL = Active */
+	data_buffer[0] = 0x01;
+	reg = 0x60;
+
+	ret = dm_i2c_write(dev, reg, data_buffer, 1);
+	if (ret)
+		printf("%s: PMU i2c_write %02X<-%02X returned %d\n",
+			__func__, reg, data_buffer[0], ret);
+
+	/* TPS65090: FET6_CTRL = enable output auto discharge, enable FET6 */
+	data_buffer[0] = 0x03;
+	reg = 0x14;
+
+	ret = i2c_get_chip_for_busnum(0, BAT_I2C_ADDRESS, 1, &dev);
+	if (ret) {
+		debug("%s: Cannot find charger I2C chip\n", __func__);
+		return;
+	}
+	ret = dm_i2c_write(dev, reg, data_buffer, 1);
+	if (ret)
+		printf("%s: BAT i2c_write %02X<-%02X returned %d\n",
+			__func__, reg, data_buffer[0], ret);
+}
+
+/*
+ * 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 SDIO3 power rail */
+	board_sdmmc_voltage_init();
+}
+#endif /* MMC */