X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=README;h=0e37b8b0846b75c36744792d311dc3940c28f233;hb=2e0e5271aac917812a76c72030a2b2c6f1d3387d;hp=463bbd0d57e6b0a9f401a4863a7ced822e85f7d7;hpb=8d54477b9bfc666632e767946ea190fc6ce52775;p=u-boot

diff --git a/README b/README
index 463bbd0d57..0e37b8b084 100644
--- a/README
+++ b/README
@@ -669,6 +669,7 @@ The following options need to be configured:
 		CONFIG_RTC_DS1337	- use Maxim, Inc. DS1337 RTC
 		CONFIG_RTC_DS1338	- use Maxim, Inc. DS1338 RTC
 		CONFIG_RTC_DS164x	- use Dallas DS164x RTC
+		CONFIG_RTC_ISL1208	- use Intersil ISL1208 RTC
 		CONFIG_RTC_MAX6900	- use Maxim, Inc. MAX6900 RTC
 
 		Note that if the RTC uses I2C, then the I2C interface
@@ -1945,6 +1946,11 @@ Configuration Settings:
 		is useful, if some of the configured banks are only
 		optionally available.
 
+- CONFIG_FLASH_SHOW_PROGRESS
+		If defined (must be an integer), print out countdown
+		digits and dots.  Recommended value: 45 (9..1) for 80
+		column displays, 15 (3..1) for 40 column displays.
+
 - CFG_RX_ETH_BUFFER:
 		Defines the number of ethernet receive buffers. On some
 		ethernet controllers it is recommended to set this value
@@ -2713,6 +2719,9 @@ Some configuration options can be set using Environment Variables:
 		  Useful on scripts which control the retry operation
 		  themselves.
 
+  npe_ucode	- see CONFIG_IXP4XX_NPE_EXT_UCOD
+		  if set load address for the npe microcode
+
   tftpsrcport	- If this is set, the value is used for TFTP's
 		  UDP source port.
 
@@ -3496,7 +3505,7 @@ GCC's implementation.
 
 For PowerPC, the following registers have specific use:
 	R1:	stack pointer
-	R2:	TOC pointer
+	R2:	reserved for system use
 	R3-R4:	parameter passing and return values
 	R5-R10: parameter passing
 	R13:	small data area pointer
@@ -3505,7 +3514,7 @@ For PowerPC, the following registers have specific use:
 
 	(U-Boot also uses R14 as internal GOT pointer.)
 
-    ==> U-Boot will use R29 to hold a pointer to the global data
+    ==> U-Boot will use R2 to hold a pointer to the global data
 
     Note: on PPC, we could use a static initializer (since the
     address of the global data structure is known at compile time),
@@ -3514,6 +3523,11 @@ For PowerPC, the following registers have specific use:
     average for all boards 752 bytes for the whole U-Boot image,
     624 text + 127 data).
 
+On Blackfin, the normal C ABI (except for P5) is followed as documented here:
+	http://docs.blackfin.uclinux.org/doku.php?id=application_binary_interface
+
+    ==> U-Boot will use P5 to hold a pointer to the global data
+
 On ARM, the following registers are used:
 
 	R0:	function argument word/integer result