X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=README;h=1bcb63c7e39b8316ca8642dce640f543a5f6b012;hb=300c2e6263b2a21f9710eef7211dbd49c962a77e;hp=c49af7449099af23ad4371a5421ae0dcecb4cf7b;hpb=a128197b815cbef81549434c3591108618ecc7ba;p=oweals%2Fu-boot.git diff --git a/README b/README index c49af74490..1bcb63c7e3 100644 --- a/README +++ b/README @@ -1671,7 +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 @@ -1716,6 +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 @@ -1727,12 +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. @@ -3079,31 +3082,12 @@ 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 memories can be connected with a given cs line. Currently Xilinx Zynq qspi supports these type of connections. - CONFIG_SPI_FLASH_MTD spi-flash MTD layer - - Define this option to use mtd support for spi flash layer, this - adapter is for translating mtd_read/mtd_write commands into - spi_flash_read/spi_flash_write commands. It is not intended to - use it within sf_cmd or the SPI flash subsystem. Such an adapter - is needed for subsystems like UBI which can only operate on top - of the MTD layer. - - CONFIG_SPI_FLASH_DATAFLASH SPI based Dataflash - - Define this option to access AT45xxx Dataflash chips support - using spi flash interface. - - SystemACE Support: CONFIG_SYSTEMACE @@ -5082,6 +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: ======================