X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=README;h=d51ece946c309a37fa3fcf5c1d91f0174e2b016f;hb=2fd34f2636e2547dcc2a6085de1039928f989ba4;hp=0070694438c956cad17af9ce27149cc7f98041c0;hpb=8fdf1e0f6d645f79a9b0677e062bf48d786c5b9e;p=karo-tx-uboot.git

diff --git a/README b/README
index 0070694438..d51ece946c 100644
--- a/README
+++ b/README
@@ -877,6 +877,7 @@ The following options need to be configured:
 		CONFIG_CMD_READ		* Read raw data from partition
 		CONFIG_CMD_REGINFO	* Register dump
 		CONFIG_CMD_RUN		  run command in env variable
+		CONFIG_CMD_SANDBOX	* sb command to access sandbox features
 		CONFIG_CMD_SAVES	* save S record dump
 		CONFIG_CMD_SCSI		* SCSI Support
 		CONFIG_CMD_SDRAM	* print SDRAM configuration information
@@ -1531,6 +1532,17 @@ CBFS (Coreboot Filesystem) support
 		allows for a "silent" boot where a splash screen is
 		loaded very quickly after power-on.
 
+		CONFIG_SPLASHIMAGE_GUARD
+
+		If this option is set, then U-Boot will prevent the environment
+		variable "splashimage" from being set to a problematic address
+		(see README.displaying-bmps and README.arm-unaligned-accesses).
+		This option is useful for targets where, due to alignment
+		restrictions, an improperly aligned BMP image will cause a data
+		abort. If you think you will not have problems with unaligned
+		accesses (for example because your toolchain prevents them)
+		there is no need to set this option.
+
 		CONFIG_SPLASH_SCREEN_ALIGN
 
 		If this option is set the splash image can be freely positioned
@@ -1551,6 +1563,14 @@ CBFS (Coreboot Filesystem) support
 			=> vertically centered image
 			   at x = dspWidth - bmpWidth - 9
 
+		CONFIG_SPLASH_SCREEN_PREPARE
+
+		If this option is set then the board_splash_screen_prepare()
+		function, which must be defined in your code, is called as part
+		of the splash screen display sequence. It gives the board an
+		opportunity to prepare the splash image data before it is
+		processed and sent to the frame buffer by U-Boot.
+
 - Gzip compressed BMP image support: CONFIG_VIDEO_BMP_GZIP
 
 		If this option is set, additionally to standard BMP
@@ -3811,6 +3831,15 @@ Low Level (hardware related) configuration options:
 		that is executed before the actual U-Boot. E.g. when
 		compiling a NAND SPL.
 
+- CONFIG_ARCH_MAP_SYSMEM
+		Generally U-Boot (and in particular the md command) uses
+		effective address. It is therefore not necessary to regard
+		U-Boot address as virtual addresses that need to be translated
+		to physical addresses. However, sandbox requires this, since
+		it maintains its own little RAM buffer which contains all
+		addressable memory. This option causes some memory accesses
+		to be mapped through map_sysmem() / unmap_sysmem().
+
 - CONFIG_USE_ARCH_MEMCPY
   CONFIG_USE_ARCH_MEMSET
 		If these options are used a optimized version of memcpy/memset will