aboutsummaryrefslogtreecommitdiffstats
path: root/roms/u-boot/board/avionic-design/common/tamonten-ng.c
diff options
context:
space:
mode:
Diffstat (limited to 'roms/u-boot/board/avionic-design/common/tamonten-ng.c')
-rw-r--r--roms/u-boot/board/avionic-design/common/tamonten-ng.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/roms/u-boot/board/avionic-design/common/tamonten-ng.c b/roms/u-boot/board/avionic-design/common/tamonten-ng.c
new file mode 100644
index 000000000..29bde6022
--- /dev/null
+++ b/roms/u-boot/board/avionic-design/common/tamonten-ng.c
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2013
+ * Avionic Design GmbH <www.avionic-design.de>
+ */
+
+#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 "pinmux-config-tamonten-ng.h"
+#include <i2c.h>
+
+#define PMU_I2C_ADDRESS 0x2D
+
+#define PMU_REG_LDO5 0x32
+
+#define PMU_REG_LDO_HIGH_POWER 1
+
+/* Voltage selection for the LDOs with 100mV resolution */
+#define PMU_REG_LDO_SEL_100(mV) ((((mV - 1000) / 100) + 2) << 2)
+
+#define PMU_REG_LDO_100(st, mV) (PMU_REG_LDO_##st | PMU_REG_LDO_SEL_100(mV))
+
+#define PMU_LDO5(st, mV) PMU_REG_LDO_100(st, mV)
+
+void pinmux_init(void)
+{
+ pinmux_config_pingrp_table(tamonten_ng_pinmux_common,
+ ARRAY_SIZE(tamonten_ng_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(tamonten_ng_padctrl,
+ ARRAY_SIZE(tamonten_ng_padctrl));
+}
+
+void gpio_early_init(void)
+{
+ /* Turn on the alive signal */
+ gpio_request(TEGRA_GPIO(V, 2), "ALIVE");
+ gpio_direction_output(TEGRA_GPIO(V, 2), 1);
+
+ /* Remove the reset on the external periph */
+ gpio_request(TEGRA_GPIO(I, 4), "nRST_PERIPH");
+ gpio_direction_output(TEGRA_GPIO(I, 4), 1);
+}
+
+void pmu_write(uchar reg, uchar data)
+{
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(4, PMU_I2C_ADDRESS, 1, &dev);
+ if (ret) {
+ debug("%s: Cannot find PMIC I2C chip\n", __func__);
+ return;
+ }
+ dm_i2c_write(dev, reg, &data, 1);
+}
+
+/*
+ * Do I2C/PMU writes to bring up SD card bus power
+ *
+ */
+void board_sdmmc_voltage_init(void)
+{
+ /* Enable LDO5 with 3.3v for SDMMC3 */
+ pmu_write(PMU_REG_LDO5, PMU_LDO5(HIGH_POWER, 3300));
+
+ /* Switch the power on */
+ gpio_request(TEGRA_GPIO(J, 2), "EN_3V3_EMMC");
+ gpio_direction_output(TEGRA_GPIO(J, 2), 1);
+}
+
+/*
+ * 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();
+}