summaryrefslogtreecommitdiffstats
path: root/README
diff options
context:
space:
mode:
authorTom Rini <trini@ti.com>2013-01-11 14:38:24 -0700
committerTom Rini <trini@ti.com>2013-01-11 14:38:24 -0700
commit7a8e739cd5bc0c48511d343f469af89a88a3294d (patch)
tree2198c265cd9d83d58b42ab8a8e66c2fff4d4545a /README
parent6fb4d74e59750b43f00d460c569e8a30c67c5bb0 (diff)
parent59ee45ee91cc91b392a8e2684bfcb8c933ce4967 (diff)
downloadblackbird-obmc-uboot-7a8e739cd5bc0c48511d343f469af89a88a3294d.tar.gz
blackbird-obmc-uboot-7a8e739cd5bc0c48511d343f469af89a88a3294d.zip
Merge branch 'master' of git://git.denx.de/u-boot-arm
Diffstat (limited to 'README')
-rw-r--r--README28
1 files changed, 28 insertions, 0 deletions
diff --git a/README b/README
index 78f40dfb5a..8707bf2d7c 100644
--- a/README
+++ b/README
@@ -616,6 +616,14 @@ The following options need to be configured:
boot loader that has already initialized the UART. Define this
variable to flush the UART at init time.
+ CONFIG_SYS_NS16550_BROKEN_TEMT
+
+ 16550 UART set the Transmitter Empty (TEMT) Bit when all output
+ has finished and the transmitter is totally empty. U-Boot waits
+ for this bit to be set to initialize the serial console. On some
+ broken platforms this bit is not set in SPL making U-Boot to
+ hang while waiting for TEMT. Define this option to avoid it.
+
- Console Interface:
Depending on board, define exactly one serial port
@@ -849,6 +857,7 @@ The following options need to be configured:
CONFIG_CMD_LOADS loads
CONFIG_CMD_MD5SUM print md5 message digest
(requires CONFIG_CMD_MEMORY and CONFIG_MD5)
+ CONFIG_CMD_MEMINFO * Display detailed memory information
CONFIG_CMD_MEMORY md, mm, nm, mw, cp, cmp, crc, base,
loop, loopw, mtest
CONFIG_CMD_MISC Misc functions like sleep etc
@@ -2378,6 +2387,15 @@ CBFS (Coreboot Filesystem) support
run-time determined information about the hardware to the
environment. These will be named board_name, board_rev.
+ CONFIG_DELAY_ENVIRONMENT
+
+ Normally the environment is loaded when the board is
+ intialised so that it is available to U-Boot. This inhibits
+ that so that the environment is not available until
+ explicitly loaded later by U-Boot code. With CONFIG_OF_CONTROL
+ this is instead controlled by the value of
+ /config/load-environment.
+
- DataFlash Support:
CONFIG_HAS_DATAFLASH
@@ -3453,6 +3471,16 @@ use the "saveenv" command to store a valid environment.
space for already greatly restricted images, including but not
limited to NAND_SPL configurations.
+- CONFIG_DISPLAY_BOARDINFO
+ Display information about the board that U-Boot is running on
+ when U-Boot starts up. The board function checkboard() is called
+ to do this.
+
+- CONFIG_DISPLAY_BOARDINFO_LATE
+ Similar to the previous option, but display this information
+ later, once stdio is running and output goes to the LCD, if
+ present.
+
Low Level (hardware related) configuration options:
---------------------------------------------------
OpenPOWER on IntegriCloud