nand/fsl: add NAND_NO_SUBPAGE_WRITE to eLBC and IFC drivers

[karo-tx-uboot.git] / README

diff --git a/README b/README
index a664607b524e155644d91e35755027b8f9d3601b..15596a7c6e96e59b45b424d4f436a8a318a7b40b 100644 (file)
--- a/README
+++ b/README
@@ -363,6 +363,12 @@ The following options need to be configured:
                ICache only when Code runs from RAM.
 
 - 85xx CPU Options:
+               CONFIG_SYS_PPC64
+
+               Specifies that the core is a 64-bit PowerPC implementation (implements
+               the "64" category of the Power ISA). This is necessary for ePAPR
+               compliance, among other possible reasons.
+
                CONFIG_SYS_FSL_TBCLK_DIV
 
                Defines the core time base clock divider ratio compared to the
@@ -655,6 +661,10 @@ The following options need to be configured:
                                                additional board info beside
                                                the logo
 
+               When CONFIG_CFB_CONSOLE_ANSI is defined, console will support
+               a limited number of ANSI escape sequences (cursor control,
+               erase functions and limited graphics rendition control).
+
                When CONFIG_CFB_CONSOLE is defined, video console is
                default i/o. Serial console can be forced with
                environment 'console=serial'.
@@ -801,9 +811,11 @@ The following options need to be configured:
                CONFIG_CMD_EEPROM       * EEPROM read/write support
                CONFIG_CMD_ELF          * bootelf, bootvx
                CONFIG_CMD_EXPORTENV    * export the environment
+               CONFIG_CMD_EXT2         * ext2 command support
+               CONFIG_CMD_EXT4         * ext4 command support
                CONFIG_CMD_SAVEENV        saveenv
                CONFIG_CMD_FDC          * Floppy Disk Support
-               CONFIG_CMD_FAT          * FAT partition support
+               CONFIG_CMD_FAT          * FAT command support
                CONFIG_CMD_FDOS         * Dos diskette Support
                CONFIG_CMD_FLASH          flinfo, erase, protect
                CONFIG_CMD_FPGA           FPGA device initialization support
@@ -1033,6 +1045,9 @@ The following options need to be configured:
                devices.
                CONFIG_SYS_SCSI_SYM53C8XX_CCF to fix clock timing (80Mhz)
 
+                The environment variable 'scsidevs' is set to the number of
+                SCSI devices found during the last scan.
+
 - NETWORK Support (PCI):
                CONFIG_E1000
                Support for Intel 8254x/8257x gigabit chips.
@@ -1454,6 +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
@@ -2176,8 +2196,8 @@ CBFS (Coreboot Filesystem) support
                following board configurations are known to be
                "pRAM-clean":
 
-                       ETX094, IVMS8, IVML24, SPD8xx, TQM8xxL,
-                       HERMES, IP860, RPXlite, LWMON, LANTEC,
+                       IVMS8, IVML24, SPD8xx, TQM8xxL,
+                       HERMES, IP860, RPXlite, LWMON,
                        FLAGADM, TQM8260
 
 - Error Recovery:
@@ -2303,6 +2323,12 @@ CBFS (Coreboot Filesystem) support
                - CONFIG_SYS_VENDOR
                - CONFIG_SYS_SOC
 
+               CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+
+               Define this in order to add variables describing certain
+               run-time determined information about the hardware to the
+               environment.  These will be named board_name, board_rev.
+
 - DataFlash Support:
                CONFIG_HAS_DATAFLASH
 
@@ -2627,6 +2653,10 @@ 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.
 
@@ -2636,6 +2666,11 @@ 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.
 
@@ -2651,6 +2686,9 @@ 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
 
@@ -2678,8 +2716,19 @@ 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,
@@ -2687,15 +2736,19 @@ 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
@@ -2720,6 +2773,11 @@ 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:
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