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authorTom Rini <trini@ti.com>2013-03-18 12:31:00 -0400
committerTom Rini <trini@ti.com>2013-03-18 14:37:18 -0400
commit0ce033d2582129243aca10d3072a221386bbba44 (patch)
tree6e50a3f4eed22007549dc740d0fa647a6c8cec5b /README
parentb5bec88434adb52413f1bc33fa63d7642cb8fd35 (diff)
parentb27673ccbd3d5435319b5c09c3e7061f559f925d (diff)
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Merge branch 'master' of git://git.denx.de/u-boot-arm
Albert's rework of the linker scripts conflicted with Simon's making everyone use __bss_end. We also had a minor conflict over README.scrapyard being added to in mainline and enhanced in u-boot-arm/master with proper formatting. Conflicts: arch/arm/cpu/ixp/u-boot.lds arch/arm/cpu/u-boot.lds arch/arm/lib/Makefile board/actux1/u-boot.lds board/actux2/u-boot.lds board/actux3/u-boot.lds board/dvlhost/u-boot.lds board/freescale/mx31ads/u-boot.lds doc/README.scrapyard include/configs/tegra-common.h Build tested for all of ARM and run-time tested on am335x_evm. Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'README')
-rw-r--r--README29
1 files changed, 29 insertions, 0 deletions
diff --git a/README b/README
index a620f0a..7f2506a 100644
--- a/README
+++ b/README
@@ -485,6 +485,16 @@ The following options need to be configured:
Thumb2 this flag will result in Thumb2 code generated by
GCC.
+ CONFIG_ARM_ERRATA_742230
+ CONFIG_ARM_ERRATA_743622
+ CONFIG_ARM_ERRATA_751472
+
+ If set, the workarounds for these ARM errata are applied early
+ during U-Boot startup. Note that these options force the
+ workarounds to be applied; no CPU-type/version detection
+ exists, unlike the similar options in the Linux kernel. Do not
+ set these options unless they apply!
+
- Linux Kernel Interface:
CONFIG_CLOCKS_IN_MHZ
@@ -1533,6 +1543,17 @@ 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
@@ -1553,6 +1574,14 @@ 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