tools/imximage: set DCD pointer to NULL when its length is 0

[u-boot] / README

diff --git a/README b/README
index b564640b017a3c271adb494554020710bf9bcdf0..1acc3559680c73c8e116a8be57a7d97d65c6d18e 100644 (file)
--- a/README
+++ b/README
@@ -705,6 +705,7 @@ The following options need to be configured:
                CONFIG_ARM_ERRATA_454179
                CONFIG_ARM_ERRATA_621766
                CONFIG_ARM_ERRATA_798870
+               CONFIG_ARM_ERRATA_801819
 
 - Tegra SoC options:
                CONFIG_TEGRA_SUPPORT_NON_SECURE
@@ -1381,9 +1382,6 @@ The following options need to be configured:
                Management command for E1000 devices.  When used on devices
                with SPI support you can reprogram the EEPROM from U-Boot.
 
-               CONFIG_E1000_FALLBACK_MAC
-               default MAC for empty EEPROM after production.
-
                CONFIG_EEPRO100
                Support for Intel 82557/82559/82559ER chips.
                Optional CONFIG_EEPRO100_SROM_WRITE enables EEPROM
@@ -1496,12 +1494,6 @@ The following options need to be configured:
                Support for i2c bus TPM devices. Only one device
                per system is supported at this time.
 
-                       CONFIG_TPM_TIS_I2C_BUS_NUMBER
-                       Define the the i2c bus number for the TPM device
-
-                       CONFIG_TPM_TIS_I2C_SLAVE_ADDRESS
-                       Define the TPM's address on the i2c bus
-
                        CONFIG_TPM_TIS_I2C_BURST_LIMITATION
                        Define the burst count bytes upper limit
 
@@ -1671,7 +1663,7 @@ The following options need to be configured:
                key for the Replay Protection Memory Block partition in eMMC.
 
 - USB Device Firmware Update (DFU) class support:
-               CONFIG_DFU_FUNCTION
+               CONFIG_USB_FUNCTION_DFU
                This enables the USB portion of the DFU USB class
 
                CONFIG_CMD_DFU
@@ -1716,6 +1708,9 @@ The following options need to be configured:
                sending again an USB request to the device.
 
 - USB Device Android Fastboot support:
+               CONFIG_USB_FUNCTION_FASTBOOT
+               This enables the USB part of the fastboot gadget
+
                CONFIG_CMD_FASTBOOT
                This enables the command "fastboot" which enables the Android
                fastboot mode for the platform's USB device. Fastboot is a USB
@@ -1727,12 +1722,12 @@ The following options need to be configured:
                This enables support for booting images which use the Android
                image format header.
 
-               CONFIG_USB_FASTBOOT_BUF_ADDR
+               CONFIG_FASTBOOT_BUF_ADDR
                The fastboot protocol requires a large memory buffer for
                downloads. Define this to the starting RAM address to use for
                downloaded images.
 
-               CONFIG_USB_FASTBOOT_BUF_SIZE
+               CONFIG_FASTBOOT_BUF_SIZE
                The fastboot protocol requires a large memory buffer for
                downloads. This buffer should be as large as possible for a
                platform. Define this to the size available RAM for fastboot.
@@ -5078,6 +5073,18 @@ This firmware often needs to be loaded during U-Boot booting.
 - CONFIG_SYS_MEM_TOP_HIDE_MIN
        Define minimum DDR size to be hided from top of the DDR memory
 
+Reproducible builds
+-------------------
+
+In order to achieve reproducible builds, timestamps used in the U-Boot build
+process have to be set to a fixed value.
+
+This is done using the SOURCE_DATE_EPOCH environment variable.
+SOURCE_DATE_EPOCH is to be set on the build host's shell, not as a configuration
+option for U-Boot or an environment variable in U-Boot.
+
+SOURCE_DATE_EPOCH should be set to a number of seconds since the epoch, in UTC.
+
 Building the Software:
 ======================