X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=README;h=5e2bca41c1acd9b28ee7ded28e85b2b3048192bf;hb=refs%2Fheads%2Flwmon5;hp=20751191bd8253478a8040343688615449d8afc8;hpb=7cc399c86b26abaa95f65dda0a37413dd3c77167;p=u-boot

diff --git a/README b/README
index 20751191bd..5e2bca41c1 100644
--- a/README
+++ b/README
@@ -672,6 +672,7 @@ The following options need to be configured:
 
 		CONFIG_RTC_MPC8xx	- use internal RTC of MPC8xx
 		CONFIG_RTC_PCF8563	- use Philips PCF8563 RTC
+		CONFIG_RTC_MC13783	- use MC13783 RTC
 		CONFIG_RTC_MC146818	- use MC146818 RTC
 		CONFIG_RTC_DS1307	- use Maxim, Inc. DS1307 RTC
 		CONFIG_RTC_DS1337	- use Maxim, Inc. DS1337 RTC
@@ -1414,6 +1415,11 @@ The following options need to be configured:
 		Currently supported on some MPC8xxx processors.  For an
 		example, see include/configs/mpc8349emds.h.
 
+		CONFIG_MXC_SPI
+
+		Enables the driver for the SPI controllers on i.MX and MXC
+		SoCs. Currently only i.MX31 is supported.
+
 - FPGA Support: CONFIG_FPGA
 
 		Enables FPGA subsystem.
@@ -1555,6 +1561,10 @@ The following options need to be configured:
 		before giving up the operation. If not defined, a
 		default value of 5 is used.
 
+		CONFIG_ARP_TIMEOUT
+
+		Timeout waiting for an ARP reply in milliseconds.
+
 - Command Interpreter:
 		CONFIG_AUTO_COMPLETE
 
@@ -1997,8 +2007,11 @@ Configuration Settings:
 - CFG_BOOTMAPSZ:
 		Maximum size of memory mapped by the startup code of
 		the Linux kernel; all data that must be processed by
-		the Linux kernel (bd_info, boot arguments, eventually
-		initrd image) must be put below this limit.
+		the Linux kernel (bd_info, boot arguments, FDT blob if
+		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" + CFG_BOOTMAPSZ.
 
 - CFG_MAX_FLASH_BANKS:
 		Max number of Flash memory banks
@@ -2043,6 +2056,13 @@ Configuration Settings:
 		This option also enables the building of the cfi_flash driver
 		in the drivers directory
 
+- CFG_FLASH_USE_BUFFER_WRITE
+		Use buffered writes to flash.
+
+- CONFIG_FLASH_SPANSION_S29WS_N
+		s29ws-n MirrorBit flash has non-standard addresses for buffered
+		write commands.
+
 - CFG_FLASH_QUIET_TEST
 		If this option is defined, the common CFI flash doesn't
 		print it's warning upon not recognized FLASH banks. This
@@ -2736,6 +2756,20 @@ Some configuration options can be set using Environment Variables:
 
   bootfile	- Name of the image to load with TFTP
 
+  bootm_low	- Memory range available for image processing in the bootm
+		  command can be restricted. This variable is given as
+		  a hexadecimal number and defines lowest address allowed
+		  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 descripton of CFG_BOOTMAPSZ.
+
+  bootm_size	- Memory range available for image processing in the bootm
+		  command can be restricted. This variable is given as
+		  a hexadecimal number and defines the size of the region
+		  allowed for use by the bootm command. See also "bootm_low"
+		  environment variable.
+
   autoload	- if set to "no" (any string beginning with 'n'),
 		  "bootp" will just load perform a lookup of the
 		  configuration from the BOOTP server, but not try to