omap4: Use a smaller M,N couple for IVA DPLL

[karo-tx-uboot.git] / README

diff --git a/README b/README
index da15105617eb0a6ad58f906d087e9f8ab6a0d148..67dc444bd4d0bbe92d2cefcf45b220d079f98c37 100644 (file)
--- a/README
+++ b/README
@@ -432,6 +432,14 @@ The following options need to be configured:
                Select high exception vectors of the ARM core, e.g., do not
                clear the V bit of the c1 register of CP15.
 
+               CONFIG_SYS_THUMB_BUILD
+
+               Use this flag to build U-Boot using the Thumb instruction
+               set for ARM architectures. Thumb instruction set provides
+               better code density. For ARM architectures that support
+               Thumb2 this flag will result in Thumb2 code generated by
+               GCC.
+
 - Linux Kernel Interface:
                CONFIG_CLOCKS_IN_MHZ
 
@@ -777,6 +785,8 @@ The following options need to be configured:
                CONFIG_CMD_JFFS2        * JFFS2 Support
                CONFIG_CMD_KGDB         * kgdb
                CONFIG_CMD_LDRINFO        ldrinfo (display Blackfin loader)
+               CONFIG_CMD_LINK_LOCAL   * link-local IP address auto-configuration
+                                         (169.254.*.*)
                CONFIG_CMD_LOADB          loadb
                CONFIG_CMD_LOADS          loads
                CONFIG_CMD_MD5SUM         print md5 message digest
@@ -814,7 +824,7 @@ The following options need to be configured:
                CONFIG_CMD_TIME         * run command and report execution time
                CONFIG_CMD_USB          * USB support
                CONFIG_CMD_CDP          * Cisco Discover Protocol support
-               CONFIG_CMD_FSL          * Microblaze FSL support
+               CONFIG_CMD_MFSL         * Microblaze FSL support
 
 
                EXAMPLE: If you want all functions except of network
@@ -1584,10 +1594,17 @@ The following options need to be configured:
                CONFIG_BOOTP_NTPSERVER
                CONFIG_BOOTP_TIMEOFFSET
                CONFIG_BOOTP_VENDOREX
+               CONFIG_BOOTP_MAY_FAIL
 
                CONFIG_BOOTP_SERVERIP - TFTP server will be the serverip
                environment variable, not the BOOTP server.
 
+               CONFIG_BOOTP_MAY_FAIL - If the DHCP server is not found
+               after the configured retry count, the call will fail
+               instead of starting over.  This can be used to fail over
+               to Link-local IP address configuration if the DHCP server
+               is not available.
+
                CONFIG_BOOTP_DNS2 - If a DHCP client requests the DNS
                serverip from a DHCP server, it is possible that more
                than one DNS serverip is offered to the client.
@@ -1618,6 +1635,14 @@ The following options need to be configured:
                the DHCP timeout and retry process takes a longer than
                this delay.
 
+ - Link-local IP address negotiation:
+               Negotiate with other link-local clients on the local network
+               for an address that doesn't require explicit configuration.
+               This is especially useful if a DHCP server cannot be guaranteed
+               to exist in all environments that the device must operate.
+
+               See doc/README.link-local for more information.
+
  - CDP Options:
                CONFIG_CDP_DEVICE_ID
 
@@ -3026,6 +3051,24 @@ to save the current settings.
          environment area within the total memory of your DataFlash placed
          at the specified address.
 
+- CONFIG_ENV_IS_IN_REMOTE:
+
+       Define this if you have a remote memory space which you
+       want to use for the local device's environment.
+
+       - CONFIG_ENV_ADDR:
+       - CONFIG_ENV_SIZE:
+
+         These two #defines specify the address and size of the
+         environment area within the remote memory space. The
+         local device can get the environment from remote memory
+         space by SRIO or other links.
+
+BE CAREFUL! For some special cases, the local device can not use
+"saveenv" command. For example, the local device will get the
+environment stored in a remote NOR flash by SRIO link, but it can
+not erase, write this NOR flash by SRIO interface.
+
 - CONFIG_ENV_IS_IN_NAND:
 
        Define this if you have a NAND device which you want to use