X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=README;h=b99a4441582f21d14660e107e6106600265e6d80;hb=6297872cd5de4705b6318778261b1f3f64a34c11;hp=f27e578e7203a48d5f3a85f10affbd2f282933e1;hpb=ad31ff6a4f5e420637da256e8d259bc0c63b0d2b;p=u-boot

diff --git a/README b/README
index f27e578e72..b99a444158 100644
--- a/README
+++ b/README
@@ -152,9 +152,6 @@ Directory Hierarchy:
   /blackfin		Files generic to Analog Devices Blackfin architecture
     /cpu		CPU specific files
     /lib		Architecture specific library files
-  /x86			Files generic to x86 architecture
-    /cpu		CPU specific files
-    /lib		Architecture specific library files
   /m68k			Files generic to m68k architecture
     /cpu		CPU specific files
       /mcf52x2		Files specific to Freescale ColdFire MCF52x2 CPUs
@@ -178,6 +175,9 @@ Directory Hierarchy:
   /nios2		Files generic to Altera NIOS2 architecture
     /cpu		CPU specific files
     /lib		Architecture specific library files
+  /openrisc		Files generic to OpenRISC architecture
+    /cpu		CPU specific files
+    /lib		Architecture specific library files
   /powerpc		Files generic to PowerPC architecture
     /cpu		CPU specific files
       /74xx_7xx		Files specific to Freescale MPC74xx and 7xx CPUs
@@ -200,12 +200,16 @@ Directory Hierarchy:
       /leon2		Files specific to Gaisler LEON2 SPARC CPU
       /leon3		Files specific to Gaisler LEON3 SPARC CPU
     /lib		Architecture specific library files
+  /x86			Files generic to x86 architecture
+    /cpu		CPU specific files
+    /lib		Architecture specific library files
 /api			Machine/arch independent API for external apps
 /board			Board dependent files
 /common			Misc architecture independent functions
 /disk			Code for disk drive partition handling
 /doc			Documentation (don't expect too much)
 /drivers		Commonly used device drivers
+/dts			Contains Makefile for building internal U-Boot fdt.
 /examples		Example code for standalone applications, etc.
 /fs			Filesystem code (cramfs, ext2, jffs2, etc.)
 /include		Header Files
@@ -215,7 +219,7 @@ Directory Hierarchy:
   /lzo			Library files to support LZO decompression
 /net			Networking code
 /post			Power On Self Test
-/rtc			Real Time Clock drivers
+/spl			Secondary Program Loader framework
 /tools			Tools to build S-Record or U-Boot images, etc.
 
 Software Configuration:
@@ -1404,6 +1408,12 @@ The following options need to be configured:
 		CONFIG_DFU_NAND
 		This enables support for exposing NAND devices via DFU.
 
+		CONFIG_DFU_RAM
+		This enables support for exposing RAM via DFU.
+		Note: DFU spec refer to non-volatile memory usage, but
+		allow usages beyond the scope of spec - here RAM usage,
+		one that would help mostly the developer.
+
 		CONFIG_SYS_DFU_DATA_BUF_SIZE
 		Dfu transfer uses a buffer before writing data to the
 		raw storage device. Make the size (in bytes) of this buffer
@@ -3359,7 +3369,7 @@ Configuration Settings:
 		the Linux kernel; all data that must be processed by
 		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
+		environment 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.	 The environment
 		variable "bootm_mapsize" will override the value of
@@ -3472,7 +3482,7 @@ Configuration Settings:
 
 - CONFIG_ENV_FLAGS_LIST_DEFAULT
 - CONFIG_ENV_FLAGS_LIST_STATIC
-	Enable validation of the values given to enviroment variables when
+	Enable validation of the values given to environment variables when
 	calling env set.  Variables can be restricted to only decimal,
 	hexadecimal, or boolean.  If CONFIG_CMD_NET is also defined,
 	the variables can also be restricted to IP address or MAC address.
@@ -5587,15 +5597,17 @@ On ARM, the following registers are used:
 
 	R0:	function argument word/integer result
 	R1-R3:	function argument word
-	R9:	GOT pointer
-	R10:	stack limit (used only if stack checking if enabled)
+	R9:	platform specific
+	R10:	stack limit (used only if stack checking is enabled)
 	R11:	argument (frame) pointer
 	R12:	temporary workspace
 	R13:	stack pointer
 	R14:	link register
 	R15:	program counter
 
-    ==> U-Boot will use R8 to hold a pointer to the global data
+    ==> U-Boot will use R9 to hold a pointer to the global data
+
+    Note: on ARM, only R_ARM_RELATIVE relocations are supported.
 
 On Nios II, the ABI is documented here:
 	http://www.altera.com/literature/hb/nios2/n2cpu_nii51016.pdf