stamp9g20: added preliminary support for Taskit Stamp9G20.

.gitignore

@@ -9,3 +9,4 @@
 /lauv-aux
 /lauv-aux-rpi
 /ntnu-b2xx
+/stamp9g20

systems/stamp9g20/config

@@ -0,0 +1,16 @@
+cfg_architecture='arm926ej-s'
+cfg_storage='data0:ext4:/opt'
+cfg_modules=''
+cfg_services0='network dropbear storage upgrade syslog'
+cfg_services1=''
+cfg_services2=''
+cfg_packages='dropbear rsync busybox e2fsprogs dosfstools linux u-boot'
+cfg_target_linux_kernel='arch/arm/boot/zImage'
+cfg_target_linux_dtb='arch/arm/boot/dts/at91sam9g20ek.dts'
+cfg_terminal='ttyS0'
+cfg_target_uboot_config='stamp9g20'
+cfg_partitions=\
+(
+    root    root0  512B   544MiB
+    data    data0  544MiB  -1
+)

systems/stamp9g20/fs/etc/mdev.conf

@@ -0,0 +1 @@
+ttyS0	root:root	660	>terminal

systems/stamp9g20/patches/u-boot/2014.07/00-stamp9g20-nand-ecc-bch.patch

@@ -0,0 +1,30 @@
+diff --git a/include/configs/stamp9g20.h b/include/configs/stamp9g20.h
+index 01085dc..2d2b38b 100644
+--- a/include/configs/stamp9g20.h
++++ b/include/configs/stamp9g20.h
+@@ -25,6 +25,8 @@
+  */
+ #include <asm/hardware.h>
+ 
++#define CONFIG_SYS_GENERIC_BOARD
++
+ /*
+  * Warning: changing CONFIG_SYS_TEXT_BASE requires adapting the initial boot
+  * program. Since the linker has to swallow that define, we must use a pure
+@@ -82,6 +84,8 @@
+ 
+ /* NAND flash settings */
+ #define CONFIG_NAND_ATMEL
++#define CONFIG_BCH
++#define CONFIG_NAND_ECC_BCH
+ #define CONFIG_SYS_NO_FLASH
+ #define CONFIG_SYS_MAX_NAND_DEVICE	1
+ #define CONFIG_SYS_NAND_BASE		ATMEL_BASE_CS3
+@@ -242,6 +246,7 @@
+ #define CONFIG_CMD_USB
+ #define CONFIG_CMD_FAT
+ #define CONFIG_CMD_LED
++#define CONFIG_CMD_BOOTZ
+ 
+ #ifdef CONFIG_MACB
+ # define CONFIG_CMD_PING

systems/stamp9g20/stamp9g20-testbed.cfg

@@ -0,0 +1,5 @@
+cfg_hostname='stamp9g20-testbed'
+cfg_eth_ext_ip='10.0.200.100'
+cfg_eth_ext_mk='255.255.0.0'
+cfg_eth_ext_gw='10.0.0.1'
+cfg_ptpd_interface='eth0'