X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=README;h=36ae0fb5ea3694245bb772210a4a2a9463c0db77;hb=5e3dca577b7c1bf58bd2b48449b18b7e7dcd8e04;hp=dfb51f72209f49f471c5f4c822f22ce23e6cb561;hpb=1e9a164e22976933002c5e4b0b79b09fcede9cd4;p=oweals%2Fu-boot.git

diff --git a/README b/README
index dfb51f7220..36ae0fb5ea 100644
--- a/README
+++ b/README
@@ -153,6 +153,7 @@ Directory Hierarchy:
   - at32ap	Files specific to Atmel AVR32 AP CPUs
   - i386	Files specific to i386 CPUs
   - ixp		Files specific to Intel XScale IXP CPUs
+  - leon2	Files specific to Gaisler LEON2 SPARC CPU
   - leon3	Files specific to Gaisler LEON3 SPARC CPU
   - mcf52x2	Files specific to Freescale ColdFire MCF52x2 CPUs
   - mcf5227x	Files specific to Freescale ColdFire MCF5227x CPUs
@@ -671,6 +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
@@ -1413,6 +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.
@@ -1996,8 +2003,11 @@ 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
@@ -2042,6 +2052,13 @@ 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
@@ -2735,6 +2752,20 @@ 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