avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/board/compal/paz00/paz00.c

@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2010-2012, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch/pinmux.h>
+#include <asm/gpio.h>
+
+#ifdef CONFIG_TEGRA_MMC
+/*
+ * Routine: pin_mux_mmc
+ * Description: setup the pin muxes/tristate values for the SDMMC(s)
+ */
+void pin_mux_mmc(void)
+{
+	/* SDMMC4: config 3, x8 on 2nd set of pins */
+	pinmux_set_func(PMUX_PINGRP_ATB, PMUX_FUNC_SDIO4);
+	pinmux_set_func(PMUX_PINGRP_GMA, PMUX_FUNC_SDIO4);
+	pinmux_set_func(PMUX_PINGRP_GME, PMUX_FUNC_SDIO4);
+
+	pinmux_tristate_disable(PMUX_PINGRP_ATB);
+	pinmux_tristate_disable(PMUX_PINGRP_GMA);
+	pinmux_tristate_disable(PMUX_PINGRP_GME);
+
+	/* SDIO1: SDIO1_CLK, SDIO1_CMD, SDIO1_DAT[3:0] */
+	pinmux_set_func(PMUX_PINGRP_SDIO1, PMUX_FUNC_SDIO1);
+
+	pinmux_tristate_disable(PMUX_PINGRP_SDIO1);
+
+	/* For power GPIO PV1 */
+	pinmux_tristate_disable(PMUX_PINGRP_UAC);
+	/* For CD GPIO PV5 */
+	pinmux_tristate_disable(PMUX_PINGRP_GPV);
+}
+#endif
+
+#ifdef CONFIG_DM_VIDEO
+/* this is a weak define that we are overriding */
+void pin_mux_display(void)
+{
+	debug("init display pinmux\n");
+
+	/* EN_VDD_PANEL GPIO A4 */
+	pinmux_tristate_disable(PMUX_PINGRP_DAP2);
+}
+#endif