ARM: tegra: Add support for TK1-SOM board from Colorado Engineering

The Colorado TK1 SOM is a small form factor board similar to the
Jetson TK1.  The main differences lie in the pinmux, and in that the
PCIe controller is set to use in 4lanes+1lane, rather than 2+2.

The pinmux header here was generated from a spreadsheet provided by
Colorado Engineering using the tegra-pinmux scripts.  The spreadsheet
was converted from v09 to v11 by me.

Signed-off-by: Peter Chubb <peter.chubb@data61.csiro.au>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/arch/arm/mach-tegra/tegra124/Kconfig b/arch/arm/mach-tegra/tegra124/Kconfig
index f3324ff..9e21e30 100644
--- a/arch/arm/mach-tegra/tegra124/Kconfig
+++ b/arch/arm/mach-tegra/tegra124/Kconfig
@@ -9,6 +9,17 @@
 	select CPU_V7_HAS_NONSEC if !SPL_BUILD
 	select CPU_V7_HAS_VIRT if !SPL_BUILD
 
+config TARGET_CEI_TK1_SOM
+	bool "Colorado Engineering Inc Tegra124 TK1-som board"
+	select CPU_V7_HAS_NONSEC if !SPL_BUILD
+	select CPU_V7_HAS_VIRT if !SPL_BUILD
+	help
+	  The Colorado Engineering Tegra TK1-SOM is a very compact
+	  (51mmx58mm) board that is functionally almost the same as
+	  the Jetson TK1.  The main differences are in which balls on
+	  the SoC are assigned to which functions, and the PCIEe
+	  configuration.
+
 config TARGET_NYAN_BIG
 	bool "Google/NVIDIA Nyan-big Chromebook"
 	help
@@ -26,6 +37,7 @@
 config SYS_SOC
 	default "tegra124"
 
+source "board/cei/cei-tk1-som/Kconfig"
 source "board/nvidia/jetson-tk1/Kconfig"
 source "board/nvidia/nyan-big/Kconfig"
 source "board/nvidia/venice2/Kconfig"