X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=README;h=8c14e29918922c9d4e654600e7b97bbc2d35f523;hp=2eea436f434d61ba8d8a8925586ccce5fc1dd5cd;hb=f3244a97568baef9b731ce565cd252f817fa884e;hpb=717626fd1cd3a9dd3de451405d97f67a7c707d89

diff --git a/README b/README
index 2eea436f43..8c14e29918 100644
--- a/README
+++ b/README
@@ -702,6 +702,7 @@ The following options need to be configured:
 		do have ability to provide rudimentary version and machine
 		specific checks, but expect no product checks.
 		CONFIG_ARM_ERRATA_798870
+		CONFIG_ARM_ERRATA_801819
 
 - Tegra SoC options:
 		CONFIG_TEGRA_SUPPORT_NON_SECURE
@@ -1826,6 +1827,9 @@ 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
@@ -1837,12 +1841,12 @@ 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.
@@ -5199,6 +5203,18 @@ 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:
 ======================