Merge branch 'master' of git://git.denx.de/u-boot-usb

[karo-tx-uboot.git] / README

diff --git a/README b/README
index b973344184f23210a9ff40b5d311a022df4eec2c..d8fcd95f9423a877edb04bafa4e34249f29017b2 100644 (file)
--- a/README
+++ b/README
@@ -264,6 +264,17 @@ e.g. "make cogent_mpc8xx_config". And also configure the cogent
 directory according to the instructions in cogent/README.
 
 
+Sandbox Environment:
+--------------------
+
+U-Boot can be built natively to run on a Linux host using the 'sandbox'
+board. This allows feature development which is not board- or architecture-
+specific to be undertaken on a native platform. The sandbox is also used to
+run some of U-Boot's tests.
+
+See board/sandbox/sandbox/README.sandbox for more details.
+
+
 Configuration Options:
 ----------------------
 
@@ -440,6 +451,12 @@ The following options need to be configured:
                supported, core will start to execute uboot when wakes up.
 
 - Generic CPU options:
+               CONFIG_SYS_GENERIC_GLOBAL_DATA
+               Defines global data is initialized in generic board board_init_f().
+               If this macro is defined, global data is created and cleared in
+               generic board board_init_f(). Without this macro, architecture/board
+               should initialize global data before calling board_init_f().
+
                CONFIG_SYS_BIG_ENDIAN, CONFIG_SYS_LITTLE_ENDIAN
 
                Defines the endianess of the CPU. Implementation of those
@@ -740,6 +757,10 @@ The following options need to be configured:
                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.
+               Current user of this option is drivers/serial/nsl16550.c driver
 
 - Console Interface:
                Depending on board, define exactly one serial port
@@ -1558,6 +1579,28 @@ The following options need to be configured:
                entering dfuMANIFEST state. Host waits this timeout, before
                sending again an USB request to the device.
 
+- USB Device Android Fastboot support:
+               CONFIG_CMD_FASTBOOT
+               This enables the command "fastboot" which enables the Android
+               fastboot mode for the platform's USB device. Fastboot is a USB
+               protocol for downloading images, flashing and device control
+               used on Android devices.
+               See doc/README.android-fastboot for more information.
+
+               CONFIG_ANDROID_BOOT_IMAGE
+               This enables support for booting images which use the Android
+               image format header.
+
+               CONFIG_USB_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
+               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.
+
 - Journaling Flash filesystem support:
                CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF, CONFIG_JFFS2_NAND_SIZE,
                CONFIG_JFFS2_NAND_DEV
@@ -3275,6 +3318,10 @@ FIT uImage format:
                supports MMC, NAND and YMODEM loading of U-Boot and NAND
                NAND loading of the Linux Kernel.
 
+               CONFIG_SPL_OS_BOOT
+               Enable booting directly to an OS from SPL.
+               See also: doc/README.falcon
+
                CONFIG_SPL_DISPLAY_PRINT
                For ARM, enable an optional function to print more information
                about the running system.
@@ -3350,6 +3397,10 @@ FIT uImage format:
                Support for NAND boot using simple NAND drivers that
                expose the cmd_ctrl() interface.
 
+               CONFIG_SPL_MTD_SUPPORT
+               Support for the MTD subsystem within SPL.  Useful for
+               environment on NAND support within SPL.
+
                CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT
                Set for the SPL on PPC mpc8xxx targets, support for
                drivers/ddr/fsl/libddr.o in SPL binary.
@@ -4512,6 +4563,11 @@ Low Level (hardware related) configuration options:
 - CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC:
                Enables the RTC32K OSC on AM33xx based plattforms
 
+- CONFIG_SYS_NAND_NO_SUBPAGE_WRITE
+               Option to disable subpage write in NAND driver
+               driver that uses this:
+               drivers/mtd/nand/davinci_nand.c
+
 Freescale QE/FMAN Firmware Support:
 -----------------------------------