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/phytec/pcm030/README

@@ -0,0 +1,42 @@
+To build RAMBOOT, replace this section the main Makefile
+
+pcm030_config \
+pcm030_RAMBOOT_config \
+pcm030_LOWBOOT_config:	unconfig
+	@ >include/config.h
+	@[ -z "$(findstring LOWBOOT_,$@)" ] || \
+		{ echo "CONFIG_SYS_TEXT_BASE = 0xFF000000"	>board/phytec/pcm030/config.tmp ; \
+		  echo "... with LOWBOOT configuration" ; \
+		}
+	@[ -z "$(findstring RAMBOOT_,$@)" ] || \
+	       { echo "CONFIG_SYS_TEXT_BASE = 0x00100000" >board/phycore_mpc5200b_tiny/\
+			config.tmp ; \
+		 echo "... with RAMBOOT configuration" ; \
+		 echo "... remember to make sure that MBAR is already \
+				switched to 0xF0000000 !!!" ; \
+	       }
+	@$(MKCONFIG) -a pcm030 ppc mpc5xxx pcm030 phytec
+	@ echo "remember to set pcm030_REV to 0 for rev 1245.0 rev or to 1 for rev 1245.1"
+
+Alternative SDRAM settings:
+
+#define SDRAM_MODE	0x018D0000
+#define SDRAM_EMODE	0x40090000
+#define SDRAM_CONTROL	0x715f0f00
+#define SDRAM_CONFIG1	0x73722930
+#define SDRAM_CONFIG2	0x47770000
+
+/* Settings for XLB = 99 MHz */
+#define SDRAM_MODE	0x008D0000
+#define SDRAM_EMODE	0x40090000
+#define SDRAM_CONTROL	0x714b0f00
+#define SDRAM_CONFIG1	0x63611730
+#define SDRAM_CONFIG2	0x47670000
+
+The board ships default with the environment in EEPROM
+Moving the environment to flash can be more reliable
+
+#define CONFIG_ENV_IS_IN_FLASH	1
+#define CONFIG_ENV_ADDR		(CONFIG_SYS_FLASH_BASE + 0xfe0000)
+#define CONFIG_ENV_SIZE		0x20000
+#define CONFIG_ENV_SECT_SIZE	0x20000