arm: socfpga: Socrates use environment in common header

[people/ms/u-boot.git] / README

diff --git a/README b/README
index 9c992c1ea3288ffdeb95a1322494955df6c82c33..f7ab78a8bfbc34ecea1bdb9d2d41ce54b48d7d46 100644 (file)
--- a/README
+++ b/README
@@ -137,7 +137,6 @@ Directory Hierarchy:
   /arc                 Files generic to ARC architecture
   /arm                 Files generic to ARM architecture
   /avr32               Files generic to AVR32 architecture
-  /blackfin            Files generic to Analog Devices Blackfin architecture
   /m68k                        Files generic to m68k architecture
   /microblaze          Files generic to microblaze architecture
   /mips                        Files generic to MIPS architecture
@@ -147,7 +146,6 @@ Directory Hierarchy:
   /powerpc             Files generic to PowerPC architecture
   /sandbox             Files generic to HW-independent "sandbox"
   /sh                  Files generic to SH architecture
-  /sparc               Files generic to SPARC architecture
   /x86                 Files generic to x86 architecture
 /api                   Machine/arch independent API for external apps
 /board                 Board dependent files
@@ -504,6 +502,12 @@ The following options need to be configured:
                CONFIG_SYS_FSL_IFC_LE
                Defines the IFC controller register space as Little Endian
 
+               CONFIG_SYS_FSL_IFC_CLK_DIV
+               Defines divider of platform clock(clock input to IFC controller).
+
+               CONFIG_SYS_FSL_LBC_CLK_DIV
+               Defines divider of platform clock(clock input to eLBC controller).
+
                CONFIG_SYS_FSL_PBL_PBI
                It enables addition of RCW (Power on reset configuration) in built image.
                Please refer doc/README.pblimage for more details
@@ -586,29 +590,6 @@ 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.
-
-               CONFIG_ARM_ERRATA_716044
-               CONFIG_ARM_ERRATA_742230
-               CONFIG_ARM_ERRATA_743622
-               CONFIG_ARM_ERRATA_751472
-               CONFIG_ARM_ERRATA_761320
-               CONFIG_ARM_ERRATA_773022
-               CONFIG_ARM_ERRATA_774769
-               CONFIG_ARM_ERRATA_794072
-
-               If set, the workarounds for these ARM errata are applied early
-               during U-Boot startup. Note that these options force the
-               workarounds to be applied; no CPU-type/version detection
-               exists, unlike the similar options in the Linux kernel. Do not
-               set these options unless they apply!
-
                COUNTER_FREQUENCY
                Generic timer clock source frequency.
 
@@ -617,15 +598,6 @@ The following options need to be configured:
                different from COUNTER_FREQUENCY, and can only be determined
                at run time.
 
-               NOTE: The following can be machine specific errata. These
-               do have ability to provide rudimentary version and machine
-               specific checks, but expect no product checks.
-               CONFIG_ARM_ERRATA_430973
-               CONFIG_ARM_ERRATA_454179
-               CONFIG_ARM_ERRATA_621766
-               CONFIG_ARM_ERRATA_798870
-               CONFIG_ARM_ERRATA_801819
-
 - Tegra SoC options:
                CONFIG_TEGRA_SUPPORT_NON_SECURE
 
@@ -1765,12 +1737,6 @@ The following options need to be configured:
                can be displayed via the splashscreen support or the
                bmp command.
 
-- Do compressing for memory range:
-               CONFIG_CMD_ZIP
-
-               If this option is set, it would use zlib deflate method
-               to compress the specified memory at its best effort.
-
 - Compression support:
                CONFIG_GZIP
 
@@ -2780,19 +2746,6 @@ The following options need to be configured:
                this is instead controlled by the value of
                /config/load-environment.
 
-- Parallel Flash support:
-               CONFIG_SYS_NO_FLASH
-
-               Traditionally U-Boot was run on systems with parallel NOR
-               flash. This option is used to disable support for parallel NOR
-               flash. This option should be defined if the board does not have
-               parallel flash.
-
-               If this option is not defined one of the generic flash drivers
-               (e.g.  CONFIG_FLASH_CFI_DRIVER or CONFIG_ST_SMI) must be
-               selected or the board must provide an implementation of the
-               flash API (see include/flash.h).
-
 - DataFlash Support:
                CONFIG_HAS_DATAFLASH
 
@@ -2914,8 +2867,6 @@ The following options need to be configured:
 
                CONFIG_AT91SAM9XE
                enable special bootcounter support on at91sam9xe based boards.
-               CONFIG_BLACKFIN
-               enable special bootcounter support on blackfin based boards.
                CONFIG_SOC_DA8XX
                enable special bootcounter support on da850 based boards.
                CONFIG_BOOTCOUNT_RAM
@@ -3292,10 +3243,6 @@ FIT uImage format:
                consider that a completely unreadable NAND block is bad,
                and thus should be skipped silently.
 
-               CONFIG_SPL_ABORT_ON_RAW_IMAGE
-               When defined, SPL will proceed to another boot method
-               if the image it has loaded does not have a signature.
-
                CONFIG_SPL_RELOC_STACK
                Adress of the start of the stack SPL will use after
                relocation.  If unspecified, this is equal to
@@ -5960,11 +5907,6 @@ 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 P3) is followed as documented here:
-       http://docs.blackfin.uclinux.org/doku.php?id=application_binary_interface
-
-    ==> U-Boot will use P3 to hold a pointer to the global data
-
 On ARM, the following registers are used:
 
        R0:     function argument word/integer result