X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=README;h=1bcb63c7e39b8316ca8642dce640f543a5f6b012;hb=300c2e6263b2a21f9710eef7211dbd49c962a77e;hp=3b406c2820049ad9f2f64ca9e844b6aacd57b8be;hpb=0d3f732fd2ba679b4498541f075d1b1bdbea3935;p=oweals%2Fu-boot.git

diff --git a/README b/README
index 3b406c2820..1bcb63c7e3 100644
--- a/README
+++ b/README
@@ -1048,9 +1048,7 @@ The following options need to be configured:
 		Monitor commands can be included or excluded
 		from the build by using the #include files
 		<config_cmd_all.h> and #undef'ing unwanted
-		commands, or using <config_cmd_default.h>
-		and augmenting with additional #define's
-		for wanted commands.
+		commands, or adding #define's for wanted commands.
 
 		The default command configuration includes all commands
 		except those marked below with a "*".
@@ -1673,7 +1671,7 @@ 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
@@ -1718,6 +1716,9 @@ 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
@@ -1729,12 +1730,12 @@ 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.
@@ -3037,6 +3038,19 @@ CBFS (Coreboot Filesystem) support
 		this is instead controlled by the value of
 		/config/load-environment.
 
+- Parallel Flash support:
+		CONFIG_SYS_NO_FLASH
+
+		Traditionally U-boot was run on systems with parallel NOR
+		flash. This option is used to disable support for parallel NOR
+		flash. This option should be defined if the board does not have
+		parallel flash.
+
+		If this option is not defined one of the generic flash drivers
+		(e.g.  CONFIG_FLASH_CFI_DRIVER or CONFIG_ST_SMI) must be
+		selected or the board must provide an implementation of the
+		flash API (see include/flash.h).
+
 - DataFlash Support:
 		CONFIG_HAS_DATAFLASH
 
@@ -3068,11 +3082,6 @@ CBFS (Coreboot Filesystem) support
 		Define this option to include a destructive SPI flash
 		test ('sf test').
 
-		CONFIG_SPI_FLASH_BAR		Ban/Extended Addr Reg
-
-		Define this option to use the Bank addr/Extended addr
-		support on SPI flashes which has size > 16Mbytes.
-
 		CONFIG_SF_DUAL_FLASH		Dual flash memories
 
 		Define this option to use dual flash support where two flash
@@ -5057,6 +5066,33 @@ within that device.
 	normal addressable memory via the LBC. CONFIG_SYS_LS_MC_FW_ADDR is the
 	virtual address in NOR flash.
 
+Freescale Layerscape Debug Server Support:
+-------------------------------------------
+The Freescale Layerscape Debug Server Support supports the loading of
+"Debug Server firmware" and triggering SP boot-rom.
+This firmware often needs to be loaded during U-Boot booting.
+
+- CONFIG_FSL_DEBUG_SERVER
+	Enable the Debug Server for Layerscape SoCs.
+
+- CONFIG_SYS_DEBUG_SERVER_DRAM_BLOCK_MIN_SIZE
+	Define minimum DDR size required for debug server image
+
+- 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:
 ======================