i2c: Drop use of CONFIG_I2C_HARD

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

diff --git a/README b/README
index f7ab78a8bfbc34ecea1bdb9d2d41ce54b48d7d46..86f0814f7928676252a873e56996ac77f91c7e53 100644 (file)
--- a/README
+++ b/README
@@ -823,16 +823,11 @@ The following options need to be configured:
                CONFIG_CMD_AES            AES 128 CBC encrypt/decrypt
                CONFIG_CMD_ASKENV       * ask for env variable
                CONFIG_CMD_BDI            bdinfo
-               CONFIG_CMD_BEDBUG       * Include BedBug Debugger
-               CONFIG_CMD_BMP          * BMP support
-               CONFIG_CMD_BSP          * Board specific commands
                CONFIG_CMD_BOOTD          bootd
                CONFIG_CMD_BOOTI        * ARM64 Linux kernel Image support
                CONFIG_CMD_CACHE        * icache, dcache
-               CONFIG_CMD_CLK          * clock command support
                CONFIG_CMD_CONSOLE        coninfo
                CONFIG_CMD_CRC32        * crc32
-               CONFIG_CMD_DATE         * support for RTC, date/time...
                CONFIG_CMD_DHCP         * DHCP support
                CONFIG_CMD_DIAG         * Diagnostics
                CONFIG_CMD_DS4510       * ds4510 I2C gpio commands
@@ -973,7 +968,7 @@ The following options need to be configured:
                tree is available in the global data as gd->fdt_blob.
 
                U-Boot needs to get its device tree from somewhere. This can
-               be done using one of the two options below:
+               be done using one of the three options below:
 
                CONFIG_OF_EMBED
                If this variable is defined, U-Boot will embed a device tree
@@ -994,6 +989,12 @@ The following options need to be configured:
                still use the individual files if you need something more
                exotic.
 
+               CONFIG_OF_BOARD
+               If this variable is defined, U-Boot will use the device tree
+               provided by the board at runtime instead of embedding one with
+               the image. Only boards defining board_fdt_blob_setup() support
+               this option (see include/fdtdec.h file).
+
 - Watchdog:
                CONFIG_WATCHDOG
                If this variable is defined, it enables watchdog
@@ -1549,13 +1550,6 @@ The following options need to be configured:
                This will also enable the command "fatwrite" enabling the
                user to write files to FAT.
 
-- CBFS (Coreboot Filesystem) support:
-               CONFIG_CMD_CBFS
-
-               Define this to enable support for reading from a Coreboot
-               filesystem. Available commands are cbfsinit, cbfsinfo, cbfsls
-               and cbfsload.
-
 - FAT(File Allocation Table) filesystem cluster size:
                CONFIG_FS_FAT_MAX_CLUSTSIZE
 
@@ -1581,7 +1575,6 @@ The following options need to be configured:
 
                        CONFIG_SYS_DIU_ADDR
                        CONFIG_VIDEO
-                       CONFIG_CMD_BMP
                        CONFIG_CFB_CONSOLE
                        CONFIG_VIDEO_SW_CURSOR
                        CONFIG_VGA_AS_SINGLE_DEVICE
@@ -1642,9 +1635,6 @@ The following options need to be configured:
 
                        320x240. Black & white.
 
-               Normally display is black on white background; define
-               CONFIG_SYS_WHITE_ON_BLACK to get it inverted.
-
                CONFIG_LCD_ALIGNMENT
 
                Normally the LCD is page-aligned (typically 4KB). If this is
@@ -2223,22 +2213,9 @@ The following options need to be configured:
                - approved multibus support
                - better i2c mux support
 
-               ** Please consider updating your I2C driver now. **
-
-               These enable legacy I2C serial bus commands. Defining
-               CONFIG_HARD_I2C will include the appropriate I2C driver
-               for the selected CPU.
-
-               This will allow you to use i2c commands at the u-boot
-               command line (as long as you set CONFIG_CMD_I2C in
-               CONFIG_COMMANDS) and communicate with i2c based realtime
-               clock chips. See common/cmd_i2c.c for a description of the
-               command line interface.
+               ** CONFIG_HARD_I2C is now being removed **
 
-               CONFIG_HARD_I2C selects a hardware I2C controller.
-
-               There are several other quantities that must also be
-               defined when you define CONFIG_HARD_I2C.
+----under removal:
 
                In both cases you will need to define CONFIG_SYS_I2C_SPEED
                to be the frequency (in Hz) at which you wish your i2c bus
@@ -2849,16 +2826,6 @@ The following options need to be configured:
                This enables 'hdmidet' command which returns true if an
                HDMI monitor is detected.  This command is i.MX 6 specific.
 
-               CONFIG_CMD_BMODE
-               This enables the 'bmode' (bootmode) command for forcing
-               a boot from specific media.
-
-               This is useful for forcing the ROM's usb downloader to
-               activate upon a watchdog reset which is nice when iterating
-               on U-Boot.  Using the reset button or running bmode normal
-               will set it back to normal.  This command currently
-               supports i.MX53 and i.MX6.
-
 - bootcount support:
                CONFIG_BOOTCOUNT_LIMIT
 
@@ -4532,11 +4499,6 @@ Low Level (hardware related) configuration options:
                If defined, the x86 reset vector code is included. This is not
                needed when U-Boot is running from Coreboot.
 
-- CONFIG_SYS_MPUCLK
-               Defines the MPU clock speed (in MHz).
-
-               NOTE : currently only supported on AM335x platforms.
-
 - CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC:
                Enables the RTC32K OSC on AM33xx based plattforms