CONFIG_ARM_ERRATA_742230
CONFIG_ARM_ERRATA_743622
CONFIG_ARM_ERRATA_751472
- CONFIG_ARM_ERRATA_794072
CONFIG_ARM_ERRATA_761320
+ CONFIG_ARM_ERRATA_773022
+ CONFIG_ARM_ERRATA_774769
+ CONFIG_ARM_ERRATA_794072
If set, the workarounds for these ARM errata are applied early
during U-Boot startup. Note that these options force the
CONFIG_ARM_ERRATA_454179
CONFIG_ARM_ERRATA_621766
CONFIG_ARM_ERRATA_798870
+ CONFIG_ARM_ERRATA_801819
- Tegra SoC options:
CONFIG_TEGRA_SUPPORT_NON_SECURE
- vxWorks boot parameters:
bootvx constructs a valid bootline using the following
- environments variables: bootfile, ipaddr, serverip, hostname.
+ environments variables: bootdev, bootfile, ipaddr, netmask,
+ serverip, gatewayip, hostname, othbootargs.
It loads the vxWorks image pointed bootfile.
- CONFIG_SYS_VXWORKS_BOOT_DEVICE - The vxworks device name
- CONFIG_SYS_VXWORKS_MAC_PTR - Ethernet 6 byte MA -address
- CONFIG_SYS_VXWORKS_SERVERNAME - Name of the server
- CONFIG_SYS_VXWORKS_BOOT_ADDR - Address of boot parameters
-
- CONFIG_SYS_VXWORKS_ADD_PARAMS
-
- Add it at the end of the bootline. E.g "u=username pw=secret"
-
Note: If a "bootargs" environment is defined, it will overwride
the defaults discussed just above.
define this to a list of base addresses for each (supported)
port. See e.g. include/configs/versatile.h
- CONFIG_PL011_SERIAL_RLCR
-
- Some vendor versions of PL011 serial ports (e.g. ST-Ericsson U8500)
- have separate receive and transmit line control registers. Set
- this variable to initialize the extra register.
-
- CONFIG_PL011_SERIAL_FLUSH_ON_INIT
-
- On some platforms (e.g. U8500) U-Boot is loaded by a second stage
- boot loader that has already initialized the UART. Define this
- variable to flush the UART at init time.
-
CONFIG_SERIAL_HW_FLOW_CONTROL
Define this variable to enable hw flow control in serial driver.
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
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
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
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
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.
- drivers/i2c/i2c_mxc.c
- activate this driver with CONFIG_SYS_I2C_MXC
+ - enable bus 1 with CONFIG_SYS_I2C_MXC_I2C1
+ - enable bus 2 with CONFIG_SYS_I2C_MXC_I2C2
+ - enable bus 3 with CONFIG_SYS_I2C_MXC_I2C3
+ - enable bus 4 with CONFIG_SYS_I2C_MXC_I2C4
- define speed for bus 1 with CONFIG_SYS_MXC_I2C1_SPEED
- define slave for bus 1 with CONFIG_SYS_MXC_I2C1_SLAVE
- define speed for bus 2 with CONFIG_SYS_MXC_I2C2_SPEED
- define slave for bus 2 with CONFIG_SYS_MXC_I2C2_SLAVE
- define speed for bus 3 with CONFIG_SYS_MXC_I2C3_SPEED
- define slave for bus 3 with CONFIG_SYS_MXC_I2C3_SLAVE
+ - define speed for bus 4 with CONFIG_SYS_MXC_I2C4_SPEED
+ - define slave for bus 4 with CONFIG_SYS_MXC_I2C4_SLAVE
If those defines are not set, default value is 100000
for speed, and 0 for slave.
- - enable bus 3 with CONFIG_SYS_I2C_MXC_I2C3
- - enable bus 4 with CONFIG_SYS_I2C_MXC_I2C4
- drivers/i2c/rcar_i2c.c:
- activate this driver with CONFIG_SYS_I2C_RCAR
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:
======================
projects / people / ms / u-boot.git / blobdiff