CONFIG_SH_ETHER_CACHE_WRITEBACK
If this option is set, the driver enables cache flush.
+- PWM Support:
+ CONFIG_PWM_IMX
+ Support for PWM modul on the imx6.
+
- TPM Support:
CONFIG_TPM
Support TPM devices.
9 i2c buses for Exynos4 and 1 for S3C24X0 SoCs from Samsung)
with a fix speed from 100000 and the slave addr 0!
+ - drivers/i2c/ihs_i2c.c
+ - activate this driver with CONFIG_SYS_I2C_IHS
+ - CONFIG_SYS_I2C_IHS_CH0 activate hardware channel 0
+ - CONFIG_SYS_I2C_IHS_SPEED_0 speed channel 0
+ - CONFIG_SYS_I2C_IHS_SLAVE_0 slave addr channel 0
+ - CONFIG_SYS_I2C_IHS_CH1 activate hardware channel 1
+ - CONFIG_SYS_I2C_IHS_SPEED_1 speed channel 1
+ - CONFIG_SYS_I2C_IHS_SLAVE_1 slave addr channel 1
+ - CONFIG_SYS_I2C_IHS_CH2 activate hardware channel 2
+ - CONFIG_SYS_I2C_IHS_SPEED_2 speed channel 2
+ - CONFIG_SYS_I2C_IHS_SLAVE_2 slave addr channel 2
+ - CONFIG_SYS_I2C_IHS_CH3 activate hardware channel 3
+ - CONFIG_SYS_I2C_IHS_SPEED_3 speed channel 3
+ - CONFIG_SYS_I2C_IHS_SLAVE_3 slave addr channel 3
+
additional defines:
CONFIG_SYS_NUM_I2C_BUSES
memories can be connected with a given cs line.
currently Xilinx Zynq qspi support these type of connections.
+ CONFIG_SYS_SPI_ST_ENABLE_WP_PIN
+ enable the W#/Vpp signal to disable writing to the status
+ register on ST MICRON flashes like the N25Q128.
+ The status register write enable/disable bit, combined with
+ the W#/VPP signal provides hardware data protection for the
+ device as follows: When the enable/disable bit is set to 1,
+ and the W#/VPP signal is driven LOW, the status register
+ nonvolatile bits become read-only and the WRITE STATUS REGISTER
+ operation will not execute. The only way to exit this
+ hardware-protected mode is to drive W#/VPP HIGH.
+
- SystemACE Support:
CONFIG_SYSTEMACE
disabled. If a board need legacy image format support
enable this through CONFIG_IMAGE_FORMAT_LEGACY
+ CONFIG_FIT_DISABLE_SHA256
+ Supporting SHA256 hashes has quite an impact on binary size.
+ For constrained systems sha256 hash support can be disabled
+ with this option.
+
- Standalone program support:
CONFIG_STANDALONE_LOAD_ADDR
- CONFIG_SYS_MALLOC_LEN:
Size of DRAM reserved for malloc() use.
+- CONFIG_SYS_MALLOC_F_LEN
+ Size of the malloc() pool for use before relocation. If
+ this is defined, then a very simple malloc() implementation
+ will become available before relocation. The address is just
+ below the global data, and the stack is moved down to make
+ space.
+
+ This feature allocates regions with increasing addresses
+ within the region. calloc() is supported, but realloc()
+ is not available. free() is supported but does nothing.
+ The memory will be freed (or in fact just forgotton) when
+ U-Boot relocates itself.
+
+ Pre-relocation malloc() is only supported on sandbox
+ at present but is fairly easy to enable for other archs.
+
- CONFIG_SYS_BOOTM_LEN:
Normally compressed uImages are limited to an
uncompressed size of 8 MBytes. If this is not enough,
environment area within the total memory of your DataFlash placed
at the specified address.
+- CONFIG_ENV_IS_IN_SPI_FLASH:
+
+ Define this if you have a SPI Flash memory device which you
+ want to use for the environment.
+
+ - CONFIG_ENV_OFFSET:
+ - CONFIG_ENV_SIZE:
+
+ These two #defines specify the offset and size of the
+ environment area within the SPI Flash. CONFIG_ENV_OFFSET must be
+ aligned to an erase sector boundary.
+
+ - CONFIG_ENV_SECT_SIZE:
+
+ Define the SPI flash's sector size.
+
+ - CONFIG_ENV_OFFSET_REDUND (optional):
+
+ This setting describes a second storage area of CONFIG_ENV_SIZE
+ size used to hold a redundant copy of the environment data, so
+ that there is a valid backup copy in case there is a power failure
+ during a "saveenv" operation. CONFIG_ENV_OFFSET_RENDUND must be
+ aligned to an erase sector boundary.
+
+ - CONFIG_ENV_SPI_BUS (optional):
+ - CONFIG_ENV_SPI_CS (optional):
+
+ Define the SPI bus and chip select. If not defined they will be 0.
+
+ - CONFIG_ENV_SPI_MAX_HZ (optional):
+
+ Define the SPI max work clock. If not defined then use 1MHz.
+
+ - CONFIG_ENV_SPI_MODE (optional):
+
+ Define the SPI work mode. If not defined then use SPI_MODE_3.
+
- CONFIG_ENV_IS_IN_REMOTE:
Define this if you have a remote memory space which you