x86: coreboot: Move non-board specific files to coreboot arch directory

[karo-tx-uboot.git] / README

diff --git a/README b/README
index afdf591c623f6cfa5c507d6918e738dea12b2c79..b9a36856d923d985cb159f91263f171eb56bf24f 100644 (file)
--- a/README
+++ b/README
@@ -1469,6 +1469,11 @@ CBFS (Coreboot Filesystem) support
                Normally display is black on white background; define
                CONFIG_SYS_WHITE_ON_BLACK to get it inverted.
 
+               CONFIG_LCD_BMP_RLE8
+
+               Support drawing of RLE8-compressed bitmaps on the LCD.
+
+
 - Splash Screen Support: CONFIG_SPLASH_SCREEN
 
                If this option is set, the environment is checked for
@@ -2597,6 +2602,17 @@ FIT uImage format:
  -150  common/cmd_nand.c       Incorrect FIT image format
   151  common/cmd_nand.c       FIT image format OK
 
+- FIT image support:
+               CONFIG_FIT
+               Enable support for the FIT uImage format.
+
+               CONFIG_FIT_BEST_MATCH
+               When no configuration is explicitly selected, default to the
+               one whose fdt's compatibility field best matches that of
+               U-Boot itself. A match is considered "best" if it matches the
+               most specific compatibility entry of U-Boot's fdt's root node.
+               The order of entries in the configuration's fdt is ignored.
+
 - Standalone program support:
                CONFIG_STANDALONE_LOAD_ADDR
 
@@ -2648,6 +2664,10 @@ FIT uImage format:
                CONFIG_SPL_TEXT_BASE
                TEXT_BASE for linking the SPL binary.
 
+               CONFIG_SPL_RELOC_TEXT_BASE
+               Address to relocate to.  If unspecified, this is equal to
+               CONFIG_SPL_TEXT_BASE (i.e. no relocation is done).
+
                CONFIG_SPL_BSS_START_ADDR
                Link address for the BSS within the SPL binary.
 
@@ -2657,6 +2677,11 @@ FIT uImage format:
                CONFIG_SPL_STACK
                Adress of the start of the stack SPL will use
 
+               CONFIG_SPL_RELOC_STACK
+               Adress of the start of the stack SPL will use after
+               relocation.  If unspecified, this is equal to
+               CONFIG_SPL_STACK.
+
                CONFIG_SYS_SPL_MALLOC_START
                Starting address of the malloc pool used in SPL.
 
@@ -2672,6 +2697,9 @@ FIT uImage format:
                For ARM, enable an optional function to print more information
                about the running system.
 
+               CONFIG_SPL_INIT_MINIMAL
+               Arch init code should be built for a very small image
+
                CONFIG_SPL_LIBCOMMON_SUPPORT
                Support for common/libcommon.o in SPL binary
 
@@ -2699,8 +2727,19 @@ FIT uImage format:
                CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME
                Filename to read to load U-Boot when reading from FAT
 
+               CONFIG_SPL_NAND_BASE
+               Include nand_base.c in the SPL.  Requires
+               CONFIG_SPL_NAND_DRIVERS.
+
+               CONFIG_SPL_NAND_DRIVERS
+               SPL uses normal NAND drivers, not minimal drivers.
+
+               CONFIG_SPL_NAND_ECC
+               Include standard software ECC in the SPL
+
                CONFIG_SPL_NAND_SIMPLE
-               Support for drivers/mtd/nand/libnand.o in SPL binary
+               Support for NAND boot using simple NAND drivers that
+               expose the cmd_ctrl() interface.
 
                CONFIG_SYS_NAND_5_ADDR_CYCLE, CONFIG_SYS_NAND_PAGE_COUNT,
                CONFIG_SYS_NAND_PAGE_SIZE, CONFIG_SYS_NAND_OOBSIZE,
@@ -2708,15 +2747,19 @@ FIT uImage format:
                CONFIG_SYS_NAND_ECCPOS, CONFIG_SYS_NAND_ECCSIZE,
                CONFIG_SYS_NAND_ECCBYTES
                Defines the size and behavior of the NAND that SPL uses
-               to read U-Boot with CONFIG_SPL_NAND_SIMPLE
+               to read U-Boot
 
                CONFIG_SYS_NAND_U_BOOT_OFFS
-               Location in NAND for CONFIG_SPL_NAND_SIMPLE to read U-Boot
-               from.
+               Location in NAND to read U-Boot from
+
+               CONFIG_SYS_NAND_U_BOOT_DST
+               Location in memory to load U-Boot to
+
+               CONFIG_SYS_NAND_U_BOOT_SIZE
+               Size of image to load
 
                CONFIG_SYS_NAND_U_BOOT_START
-               Location in memory for CONFIG_SPL_NAND_SIMPLE to load U-Boot
-               to.
+               Entry point in loaded image to jump to
 
                CONFIG_SYS_NAND_HW_ECC_OOBFIRST
                Define this if you need to first read the OOB and then the
@@ -2741,6 +2784,11 @@ FIT uImage format:
                CONFIG_SPL_LIBGENERIC_SUPPORT
                Support for lib/libgeneric.o in SPL binary
 
+               CONFIG_SPL_TARGET
+               Final target image containing SPL and payload.  Some SPLs
+               use an arch-specific makefile fragment instead, for
+               example if more than one image needs to be produced.
+
 Modem Support:
 --------------
 
@@ -3616,6 +3664,10 @@ Low Level (hardware related) configuration options:
                be used if available. These functions may be faster under some
                conditions but may increase the binary size.
 
+- CONFIG_X86_NO_RESET_VECTOR
+               If defined, the x86 reset vector code is excluded. You will need
+               to do this when U-Boot is running from Coreboot.
+
 Freescale QE/FMAN Firmware Support:
 -----------------------------------
 
@@ -3843,6 +3895,7 @@ saveenv - save environment variables to persistent storage
 protect - enable or disable FLASH write protection
 erase  - erase FLASH memory
 flinfo - print FLASH memory information
+nand   - NAND memory operations (see doc/README.nand)
 bdinfo - print Board Info structure
 iminfo - print header information for application image
 coninfo - print console devices and informations