ARM: tegra: Add the Tamonten™ NG Evaluation Carrier board

Add support for the new Tamonten™ NG platform from Avionic Design.
Currently only I2C, MMC, USB and ethernet have been tested.

Signed-off-by: Alban Bedel <alban.bedel@avionic-design.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

1 files changed, 85 insertions, 0 deletions

diff --git a/board/avionic-design/common/tamonten-ng.c b/board/avionic-design/common/tamonten-ng.c
new file mode 100644
index 0000000..9d395c6
--- /dev/null
+++ b/board/avionic-design/common/tamonten-ng.c
@@ -0,0 +1,85 @@
+/*
+ * (C) Copyright 2013
+ * Avionic Design GmbH <www.avionic-design.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.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_table(tamonten_ng_pinmux_common,
+			    ARRAY_SIZE(tamonten_ng_pinmux_common));
+	pinmux_config_table(unused_pins_lowpower,
+			    ARRAY_SIZE(unused_pins_lowpower));
+
+	/* Initialize any non-default pad configs (APB_MISC_GP regs) */
+	padgrp_config_table(tamonten_ng_padctrl,
+			    ARRAY_SIZE(tamonten_ng_padctrl));
+}
+
+void gpio_early_init(void)
+{
+	/* Turn on the alive signal */
+	gpio_request(GPIO_PV2, "ALIVE");
+	gpio_direction_output(GPIO_PV2, 1);
+
+	/* Remove the reset on the external periph */
+	gpio_request(GPIO_PI4, "nRST_PERIPH");
+	gpio_direction_output(GPIO_PI4, 1);
+}
+
+void pmu_write(uchar reg, uchar data)
+{
+	i2c_set_bus_num(4);	/* PMU is on bus 4 */
+	i2c_write(PMU_I2C_ADDRESS, reg, 1, &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(GPIO_PJ2, "EN_3V3_EMMC");
+	gpio_direction_output(GPIO_PJ2, 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();
+}