sandbox64: enable command aes

[oweals/u-boot.git] / README

diff --git a/README b/README
index b08ad8904dafc1690f53dec65caf7c0a4309696b..1389e8ff127f38f4a404bd4410bafa989f432158 100644 (file)
--- a/README
+++ b/README
@@ -83,7 +83,7 @@ Where we come from:
   * Provide extended interface to Linux boot loader
   * S-Record download
   * network boot
-  * PCMCIA / CompactFlash / ATA disk / SCSI ... boot
+  * ATA disk / SCSI ... boot
 - create ARMBoot project (http://sourceforge.net/projects/armboot)
 - add other CPU families (starting with ARM)
 - create U-Boot project (http://sourceforge.net/projects/u-boot)
@@ -267,6 +267,13 @@ board_init_f():
        - preloader_console_init() can be called here in extremis
        - should set up SDRAM, and anything needed to make the UART work
        - these is no need to clear BSS, it will be done by crt0.S
+       - for specific scenarios on certain architectures an early BSS *can*
+         be made available (via CONFIG_SPL_EARLY_BSS by moving the clearing
+         of BSS prior to entering board_init_f()) but doing so is discouraged.
+         Instead it is strongly recommended to architect any code changes
+         or additions such to not depend on the availability of BSS during
+         board_init_f() as indicated in other sections of this README to
+         maintain compatibility and consistency across the entire code base.
        - must return normally from this function (don't call board_init_r()
                directly)
 
@@ -3421,6 +3428,8 @@ List of environment variables (most likely not complete):
                  allowed for use by the bootm command. See also "bootm_low"
                  environment variable.
 
+  bootstopkeysha256, bootdelaykey, bootstopkey - See README.autoboot
+
   updatefile   - Location of the software update file on a TFTP server, used
                  by the automatic software update feature. Please refer to
                  documentation in doc/README.update for more details.