Merge remote-tracking branch 'u-boot/master' into test

[karo-tx-uboot.git] / README

diff --git a/README b/README
index 8114f79e660d3674813b59dc868261b05cc78364..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.
 
 
 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:
 ----------------------
 
 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:
                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
                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.
 
                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
 
 - Console Interface:
                Depending on board, define exactly one serial port


@@ -3297,6 +3318,10 @@ FIT uImage format:
                supports MMC, NAND and YMODEM loading of U-Boot and NAND
                NAND loading of the Linux Kernel.
 
                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.
                CONFIG_SPL_DISPLAY_PRINT
                For ARM, enable an optional function to print more information
                about the running system.


@@ -3372,6 +3397,10 @@ FIT uImage format:
                Support for NAND boot using simple NAND drivers that
                expose the cmd_ctrl() interface.
 
                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.
                CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT
                Set for the SPL on PPC mpc8xxx targets, support for
                drivers/ddr/fsl/libddr.o in SPL binary.


@@ -4534,6 +4563,11 @@ Low Level (hardware related) configuration options:
 - CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC:
                Enables the RTC32K OSC on AM33xx based plattforms
 
 - 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:
 -----------------------------------
 
 Freescale QE/FMAN Firmware Support:
 -----------------------------------