arm: tegra: initial support for apalis tk1Apalis_TK1_LinuxImageV2.6Beta2_20160701

This patch adds support for the Toradex Apalis TK1 acomputer on module
which can be used on different carrier boards.

The module consists of a Tegra TK1 SoC, a PMIC solution, 2 GB of DDR3L
RAM, a bunch of level shifters, an eMMC, a TMP451 temperature sensor
chip, an I210 gigabit Ethernet controller and a SGTL5000 audio codec.
Furthermore, there is a Kinetis MK20DN512 companion micro controller for
analogue, CAN and resistive touch functionality which is not yet
supported.

This is known to boot into either a basic Angstrom/OpenEmbedded/Yocto
or L4T/JetPack Ubuntu based image.

The following things are known to work to a certain extend:
- analogue/digital audio
- debug UART1
- DVFS power management incl. low power core migration
- eMMC
- gigabit Ethernet
- GPIOs
- HDMI (incl. HDA audio)
- I2C
- LVDS
- PCIe
- SATA
- SD/MMC cards
- temperature sensor
- USB host ports

The rest is untested.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>

1 files changed, 68 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/tegra124-platforms/tegra124-apalis-gpio.dtsi b/arch/arm/boot/dts/tegra124-platforms/tegra124-apalis-gpio.dtsi
new file mode 100644
index 000000000000..62ece8b66750
--- /dev/null
+++ b/arch/arm/boot/dts/tegra124-platforms/tegra124-apalis-gpio.dtsi
@@ -0,0 +1,68 @@
+#include <dt-bindings/gpio/tegra-gpio.h>
+
+/ {
+	gpio: gpio@6000d000 {
+		gpio-init-names = "default";
+		gpio-init-0 = <&gpio_default>;
+
+		gpio_default: default {
+			gpio-input = <
+				TEGRA_GPIO(A, 1)
+				TEGRA_GPIO(B, 1)
+				TEGRA_GPIO(I, 5)
+				TEGRA_GPIO(I, 6)
+				TEGRA_GPIO(J, 0)
+				TEGRA_GPIO(J, 2)
+				TEGRA_GPIO(K, 2)
+				TEGRA_GPIO(K, 7)
+				TEGRA_GPIO(N, 7)
+				TEGRA_GPIO(O, 5)
+				TEGRA_GPIO(V, 3)
+				TEGRA_GPIO(V, 4)
+				TEGRA_GPIO(V, 5)
+				TEGRA_GPIO(W, 3)
+				TEGRA_GPIO(W, 5)
+				TEGRA_GPIO(BB, 0)
+				TEGRA_GPIO(BB, 4)
+				TEGRA_GPIO(CC, 5)
+				TEGRA_GPIO(DD, 1)
+				TEGRA_GPIO(DD, 2)
+				TEGRA_GPIO(DD, 3)
+				TEGRA_GPIO(DD, 5)
+				TEGRA_GPIO(DD, 6)
+				TEGRA_GPIO(EE, 3)
+				TEGRA_GPIO(EE, 5)
+				TEGRA_GPIO(FF, 0)
+				TEGRA_GPIO(FF, 1)
+				TEGRA_GPIO(FF, 2)
+				>;
+			gpio-output-low = <
+				TEGRA_GPIO(C, 0)
+				TEGRA_GPIO(Q, 0) /* Shift_CTRL_OE[0] */
+				TEGRA_GPIO(Q, 1) /* Shift_CTRL_OE[1] */
+				TEGRA_GPIO(Q, 2) /* Shift_CTRL_OE[2] */
+				TEGRA_GPIO(Q, 4) /* Shift_CTRL_OE[4] */
+				TEGRA_GPIO(R, 0) /* Shift_CTRL_Dir_In[0] */
+				TEGRA_GPIO(R, 1) /* Shift_CTRL_Dir_In[1] */
+				TEGRA_GPIO(R, 2) /* Shift_CTRL_OE[3] */
+				TEGRA_GPIO(S, 3) /* Shift_CTRL_Dir_In[2] */
+				TEGRA_GPIO(BB, 3)
+				TEGRA_GPIO(BB, 6)
+				>;
+			gpio-output-high = <
+				TEGRA_GPIO(N, 2)
+				TEGRA_GPIO(N, 4)
+				TEGRA_GPIO(N, 5)
+#if 0
+				TEGRA_GPIO(O, 6) /* LAN_DEV_OFF# */
+#endif
+				TEGRA_GPIO(Q, 5) /* Shift_CTRL_Dir_Out[0] */
+				TEGRA_GPIO(Q, 6) /* Shift_CTRL_Dir_Out[1] */
+				TEGRA_GPIO(Q, 7) /* Shift_CTRL_Dir_Out[2] */
+				TEGRA_GPIO(S, 2) /* LAN_RESET# */
+				TEGRA_GPIO(U, 4)
+				TEGRA_GPIO(BB, 5)
+				>;
+		};
+	};
+};