powerpc: fix implementation of out_8 to match the other out_XX functions

[karo-tx-uboot.git] / README

diff --git a/README b/README
index cdbb9de02c68c8ef8ec94be2d2748463b00d2486..0491b1109a265c77b6734176a1700628b53d77d2 100644 (file)
--- a/README
+++ b/README
@@ -2011,6 +2011,20 @@ The following options need to be configured:
                thus overwriting the architecutre dependent default
                settings.
 
+- Frame Buffer Address:
+       CONFIG_FB_ADDR
+
+       Define CONFIG_FB_ADDR if you want to use specific address for
+       frame buffer.
+       Then system will reserve the frame buffer address to defined address
+       instead of lcd_setmem (this function grab the memory for frame buffer
+       by panel's size).
+
+       Please see board_init_f function.
+
+       If you want this config option then,
+       please define it at your board config file
+
 Legacy uImage format:
 
   Arg  Where                   When
@@ -2348,7 +2362,10 @@ Configuration Settings:
                used) must be put below this limit, unless "bootm_low"
                enviroment variable is defined and non-zero. In such case
                all data for the Linux kernel must be between "bootm_low"
-               and "bootm_low" + CONFIG_SYS_BOOTMAPSZ.
+               and "bootm_low" + CONFIG_SYS_BOOTMAPSZ.  The environment
+               variable "bootm_mapsize" will override the value of
+               CONFIG_SYS_BOOTMAPSZ.  If CONFIG_SYS_BOOTMAPSZ is undefined,
+               then the value in "bootm_size" will be used instead.
 
 - CONFIG_SYS_BOOT_RAMDISK_HIGH:
                Enable initrd_high functionality.  If defined then the
@@ -2944,6 +2961,12 @@ Low Level (hardware related) configuration options:
                that is executed before the actual U-Boot. E.g. when
                compiling a NAND SPL.
 
+- CONFIG_USE_ARCH_MEMCPY
+  CONFIG_USE_ARCH_MEMSET
+               If these options are used a optimized version of memcpy/memset will
+               be used if available. These functions may be faster under some
+               conditions but may increase the binary size.
+
 Building the Software:
 ======================
 
@@ -3184,7 +3207,16 @@ List of environment variables (most likely not complete):
                  for use by the bootm command. See also "bootm_size"
                  environment variable. Address defined by "bootm_low" is
                  also the base of the initial memory mapping for the Linux
-                 kernel -- see the description of CONFIG_SYS_BOOTMAPSZ.
+                 kernel -- see the description of CONFIG_SYS_BOOTMAPSZ and
+                 bootm_mapsize.
+
+  bootm_mapsize        - Size of the initial memory mapping for the Linux kernel.
+                 This variable is given as a hexadecimal number and it
+                 defines the size of the memory region starting at base
+                 address bootm_low that is accessible by the Linux kernel
+                 during early boot.  If unset, CONFIG_SYS_BOOTMAPSZ is used
+                 as the default value if it is defined, and bootm_size is
+                 used otherwise.
 
   bootm_size   - Memory range available for image processing in the bootm
                  command can be restricted. This variable is given as