board you may want something other than UART0 as for example the IDK
uses UART3 so enter 4 here.
+config NOR
+ bool "Support for NOR flash"
+ help
+ The AM335x SoC supports having a NOR flash connected to the GPMC.
+ In practice this is seen as a NOR flash module connected to the
+ "memory cape" for the BeagleBone family.
+
+config NOR_BOOT
+ bool "Support for booting from NOR flash"
+ depends on NOR
+ help
+ Enabling this will make a U-Boot binary that is capable of being
+ booted via NOR. In this case we will enable certain pinmux early
+ as the ROM only partially sets up pinmux. We also default to using
+ NOR for environment.
+
+config DM
+ default y
+
+config DM_GPIO
+ default y if DM
+
+config DM_SERIAL
+ default y if DM
+
+config SYS_MALLOC_F
+ default y if DM
+
+config SYS_MALLOC_F_LEN
+ default 0x400 if DM
+
endif