tegra: add Colibri T20 board support

This adds board support for the Toradex Colibri T20 module.

Working functions:
- SD card boot
- USB boot
- Network
- NAND environment

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>

5 files changed, 184 insertions, 0 deletions

diff --git a/board/toradex/colibri_t20-common/colibri_t20-common.c b/board/toradex/colibri_t20-common/colibri_t20-common.c
new file mode 100644
index 0000000000..6d5e47d38e
--- /dev/null
+++ b/board/toradex/colibri_t20-common/colibri_t20-common.c
@@ -0,0 +1,44 @@
+/*
+ *  Copyright (C) 2012 Lucas Stach
+ *
+ * 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.
+ *
+ */
+
+#include <common.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/funcmux.h>
+#include <asm/arch/pinmux.h>
+#include <asm/arch-tegra/board.h>
+
+#include "colibri_t20-common.h"
+
+#ifdef CONFIG_USB_EHCI_TEGRA
+void colibri_t20_common_pin_mux_usb(void)
+{
+	/* module internal USB bus to connect ethernet chipset */
+	funcmux_select(PERIPH_ID_USB2, FUNCMUX_USB2_ULPI);
+	/* ULPI reference clock output */
+	pinmux_set_func(PINGRP_CDEV2, PMUX_FUNC_PLLP_OUT4);
+	pinmux_tristate_disable(PINGRP_CDEV2);
+	/* PHY reset GPIO */
+	pinmux_tristate_disable(PINGRP_UAC);
+	/* VBus GPIO */
+	pinmux_tristate_disable(PINGRP_DTE);
+}
+#endif
+
+#ifdef CONFIG_TEGRA_NAND
+void pin_mux_nand(void)
+{
+	funcmux_select(PERIPH_ID_NDFLASH, FUNCMUX_NDFLASH_KBC_8_BIT);
+}
+#endif
diff --git a/board/toradex/colibri_t20-common/colibri_t20-common.h b/board/toradex/colibri_t20-common/colibri_t20-common.h
new file mode 100644
index 0000000000..76dc8608d5
--- /dev/null
+++ b/board/toradex/colibri_t20-common/colibri_t20-common.h
@@ -0,0 +1,16 @@
+/*
+ *  Copyright (C) 2012 Lucas Stach
+ *
+ * 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.
+ *
+ */
+
+void colibri_t20_common_pin_mux_usb(void);
diff --git a/board/toradex/colibri_t20_iris/Makefile b/board/toradex/colibri_t20_iris/Makefile
new file mode 100644
index 0000000000..c138729a48
--- /dev/null
+++ b/board/toradex/colibri_t20_iris/Makefile
@@ -0,0 +1,40 @@
+#
+#  (C) Copyright 2012 Lucas Stach
+#
+#  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.
+#
+#
+
+include $(TOPDIR)/config.mk
+
+$(shell mkdir -p $(obj)../../nvidia/common)
+$(shell mkdir -p $(obj)../colibri_t20-common)
+
+LIB	= $(obj)lib$(BOARD).o
+
+COBJS	:= ../../nvidia/common/board.o
+COBJS	+= ../colibri_t20-common/colibri_t20-common.o
+COBJS	+= $(BOARD).o
+
+SRCS	:= $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+
+$(LIB):	$(obj).depend $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/toradex/colibri_t20_iris/colibri_t20_iris.c b/board/toradex/colibri_t20_iris/colibri_t20_iris.c
new file mode 100644
index 0000000000..e40a98609f
--- /dev/null
+++ b/board/toradex/colibri_t20_iris/colibri_t20_iris.c
@@ -0,0 +1,46 @@
+/*
+ *  Copyright (C) 2012 Lucas Stach
+ *
+ * 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.
+ *
+ */
+
+#include <common.h>
+#include <asm/gpio.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/funcmux.h>
+#include <asm/arch/pinmux.h>
+#include <asm/arch-tegra/board.h>
+#include <asm/arch-tegra/mmc.h>
+
+#include "../colibri_t20-common/colibri_t20-common.h"
+
+#ifdef CONFIG_USB_EHCI_TEGRA
+void pin_mux_usb(void)
+{
+	colibri_t20_common_pin_mux_usb();
+
+	/* USB 1 aka Tegra USB port 3 VBus*/
+	pinmux_tristate_disable(PINGRP_SPIG);
+}
+#endif
+
+#ifdef CONFIG_TEGRA_MMC
+int board_mmc_init(bd_t *bd)
+{
+	funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_4_BIT);
+	pinmux_tristate_disable(PINGRP_GMB);
+
+	tegra_mmc_init(0, 4, -1, GPIO_PC7);
+
+	return 0;
+}
+#endif
diff --git a/board/toradex/dts/tegra20-colibri_t20_iris.dts b/board/toradex/dts/tegra20-colibri_t20_iris.dts
new file mode 100644
index 0000000000..c29b43a0ef
--- /dev/null
+++ b/board/toradex/dts/tegra20-colibri_t20_iris.dts
@@ -0,0 +1,38 @@
+/dts-v1/;
+
+/include/ ARCH_CPU_DTS
+
+/ {
+	model = "Toradex Colibri T20";
+	compatible = "toradex,t20", "nvidia,tegra20";
+
+	aliases {
+		usb0 = "/usb@c5008000";
+		usb1 = "/usb@c5000000";
+		usb2 = "/usb@c5004000";
+	};
+
+	usb@c5000000 {
+		dr_mode = "otg";
+	};
+
+	usb@c5004000 {
+		nvidia,phy-reset-gpio = <&gpio 169 0>; /* PV1 */
+		nvidia,vbus-gpio = <&gpio 217 0>; /* PBB1 */
+	};
+
+	usb@c5008000 {
+		nvidia,vbus-gpio = <&gpio 178 1>; /* PW2 low-active */
+	};
+
+	nand-controller@70008000 {
+		nvidia,wp-gpios = <&gpio 144 0>; /* PS0 */
+		nvidia,width = <8>;
+		nvidia,timing = <15 100 25 80 25 10 15 10 100>;
+
+		nand@0 {
+			reg = <0>;
+			compatible = "nand-flash";
+		};
+	};
+};