[new uImage] Add gen_get_image() routine

[u-boot] / README

diff --git a/README b/README
index cc5527452c229d8c5a2766dd0617806e258318e0..491397affc14cc37ff5460c9a9cd3adb08e0f862 100644 (file)
--- a/README
+++ b/README
@@ -136,8 +136,10 @@ Directory Hierarchy:
   - i386       Files specific to i386 CPUs
   - ixp                Files specific to Intel XScale IXP CPUs
   - mcf52x2    Files specific to Freescale ColdFire MCF52x2 CPUs
+  - mcf5227x   Files specific to Freescale ColdFire MCF5227x CPUs
   - mcf532x    Files specific to Freescale ColdFire MCF5329 CPUs
   - mcf5445x   Files specific to Freescale ColdFire MCF5445x CPUs
+  - mcf547x_8x Files specific to Freescale ColdFire MCF547x_8x CPUs
   - mips       Files specific to MIPS CPUs
   - mpc5xx     Files specific to Freescale MPC5xx  CPUs
   - mpc5xxx    Files specific to Freescale MPC5xxx CPUs
@@ -1377,6 +1379,14 @@ The following options need to be configured:
                SPI configuration items (port pins to use, etc). For
                an example, see include/configs/sacsng.h.
 
+               CONFIG_HARD_SPI
+
+               Enables a hardware SPI driver for general-purpose reads
+               and writes.  As with CONFIG_SOFT_SPI, the board configuration
+               must define a list of chip-select function pointers.
+               Currently supported on some MPC8xxx processors.  For an
+               example, see include/configs/mpc8349emds.h.
+
 - FPGA Support: CONFIG_FPGA
 
                Enables FPGA subsystem.
@@ -2691,6 +2701,10 @@ Some configuration options can be set using Environment Variables:
                  => setenv ethact SCC ETHERNET
                  => ping 10.0.0.1 # traffic sent on SCC ETHERNET
 
+  ethrotate    - When set to "no" U-Boot does not go through all
+                 available network interfaces.
+                 It just stays at the currently selected interface.
+
    netretry    - When set to "no" each network operation will
                  either succeed or fail without retrying.
                  When set to "once" the network operation will
@@ -3485,7 +3499,7 @@ 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
@@ -3494,7 +3508,7 @@ 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),
@@ -3503,6 +3517,11 @@ 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