arm: dts: da850: Re-sync da850-evm.dts from Linux 4.18

[u-boot.git] / README

diff --git a/README b/README
index a15a3dd39bd23b7ac939514da51b6916d6e3dbd4..09822a317da8da4e71f8af460b1d305af4bcd9cd 100644 (file)
--- a/README
+++ b/README
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (C) Copyright 2000 - 2013
 # Wolfgang Denk, DENX Software Engineering, [email protected].
-#
-# SPDX-License-Identifier:     GPL-2.0+
-#
 
 Summary:
 ========
@@ -333,11 +331,6 @@ The following options need to be configured:
 
 - Board Type:  Define exactly one, e.g. CONFIG_MPC8540ADS.
 
-- Marvell Family Member
-               CONFIG_SYS_MVFS         - define it if you want to enable
-                                         multiple fs option at one time
-                                         for marvell soc family
-
 - 85xx CPU Options:
                CONFIG_SYS_PPC64
 
@@ -881,9 +874,6 @@ The following options need to be configured:
                CONFIG_EFI_PARTITION   GPT partition table, common when EFI is the
                                       bootloader.  Note 2TB partition limit; see
                                       disk/part_efi.c
-               CONFIG_MTD_PARTITIONS  Memory Technology Device partition table.
-
-               If IDE or SCSI support is enabled (CONFIG_IDE or
                CONFIG_SCSI) you must configure support for at
                least one non-MTD partition type as well.
 
@@ -987,9 +977,6 @@ The following options need to be configured:
                        Define this to use i/o functions instead of macros
                        (some hardware wont work with macros)
 
-               CONFIG_DRIVER_TI_EMAC
-               Support for davinci emac
-
                        CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT
                        Define this if you have more then 3 PHYs.
 
@@ -1174,10 +1161,6 @@ The following options need to be configured:
                CONFIG_SUPPORT_EMMC_BOOT
                Enable some additional features of the eMMC boot partitions.
 
-               CONFIG_SUPPORT_EMMC_RPMB
-               Enable the commands for reading, writing and programming the
-               key for the Replay Protection Memory Block partition in eMMC.
-
 - USB Device Firmware Update (DFU) class support:
                CONFIG_DFU_OVER_USB
                This enables the USB portion of the DFU USB class
@@ -2444,17 +2427,6 @@ FIT uImage format:
                for a more detailed description refer to doc/README.update.
 
 - MTD Support (mtdparts command, UBI support)
-               CONFIG_MTD_DEVICE
-
-               Adds the MTD device infrastructure from the Linux kernel.
-               Needed for mtdparts command support.
-
-               CONFIG_MTD_PARTITIONS
-
-               Adds the MTD partitioning infrastructure from the Linux
-               kernel. Needed for UBI support.
-
-- UBI support
                CONFIG_MTD_UBI_WL_THRESHOLD
                This parameter defines the maximum difference between the highest
                erase counter value and the lowest erase counter value of eraseblocks
@@ -2636,6 +2608,10 @@ FIT uImage format:
                CONFIG_SPL_NAND_DRIVERS
                SPL uses normal NAND drivers, not minimal drivers.
 
+               CONFIG_SPL_NAND_IDENT
+               SPL uses the chip ID list to identify the NAND flash.
+               Requires CONFIG_SPL_NAND_BASE.
+
                CONFIG_SPL_NAND_ECC
                Include standard software ECC in the SPL
 
@@ -2697,7 +2673,7 @@ FIT uImage format:
                use an arch-specific makefile fragment instead, for
                example if more than one image needs to be produced.
 
-               CONFIG_FIT_SPL_PRINT
+               CONFIG_SPL_FIT_PRINT
                Printing information about a FIT image adds quite a bit of
                code to SPL. So this is normally disabled in SPL. Use this
                option to re-enable it. This will affect the output of the
@@ -3039,11 +3015,6 @@ Configuration Settings:
        If defined, don't allow the -f switch to env set override variable
        access flags.
 
-- CONFIG_USE_STDINT
-       If stdint.h is available with your toolchain you can define this
-       option to enable it. You can provide option 'USE_STDINT=1' when
-       building U-Boot to enable this.
-
 The following definitions that deal with the placement and management
 of environment data (variable area); in general, we support the
 following configurations:
@@ -3964,6 +3935,17 @@ If CONFIG_REGEX is defined, the variable_name above is evaluated as a
 regular expression. This allows multiple variables to be connected to
 the same callback without explicitly listing them all out.
 
+The signature of the callback functions is:
+
+    int callback(const char *name, const char *value, enum env_op op, int flags)
+
+* name - changed environment variable
+* value - new value of the environment variable
+* op - operation (create, overwrite, or delete)
+* flags - attributes of the environment variable change, see flags H_* in
+  include/search.h
+
+The return value is 0 if the variable change is accepted and 1 otherwise.
 
 Command Line Parsing:
 =====================