suitable malloc() implementation. If you are not using the
full malloc() enabled by CONFIG_SYS_SPL_MALLOC_START,
consider using CONFIG_SYS_MALLOC_SIMPLE. In that case you
- must provide CONFIG_SYS_MALLOC_F_LEN to set the size.
+ must provide CONFIG_SPL_SYS_MALLOC_F_LEN to set the size.
In most cases driver model will only allocate a few uclasses
and devices in SPL, so 1KB should be enable. See
- CONFIG_SYS_MALLOC_F_LEN for more details on how to enable it.
+ CONFIG_SPL_SYS_MALLOC_F_LEN for more details on how to enable it.
+
+config TPL_DM
+ bool "Enable Driver Model for TPL"
+ depends on DM && TPL
+ help
+ Enable driver model in TPL. You will need to provide a
+ suitable malloc() implementation. If you are not using the
+ full malloc() enabled by CONFIG_SYS_SPL_MALLOC_START,
+ consider using CONFIG_SYS_MALLOC_SIMPLE. In that case you
+ must provide CONFIG_SPL_SYS_MALLOC_F_LEN to set the size.
+ In most cases driver model will only allocate a few uclasses
+ and devices in SPL, so 1KB should be enough. See
+ CONFIG_SPL_SYS_MALLOC_F_LEN for more details on how to enable it.
+ Disable this for very small implementations.
config DM_WARN
bool "Enable warnings in driver model"
This will cause dm_warn() to be compiled out - it will do nothing
when called.
+config DM_DEBUG
+ bool "Enable debug messages in driver model core"
+ depends on DM
+ help
+ Say Y here if you want to compile in debug messages in DM core.
+
config DM_DEVICE_REMOVE
bool "Support device removal"
depends on DM
bool "Support numbered aliases in device tree"
depends on DM
default y
+ help
+ Most boards will have a '/aliases' node containing the path to
+ numbered devices (e.g. serial0 = &serial0). This feature can be
+ disabled if it is not required.
+
+config SPL_DM_SEQ_ALIAS
+ bool "Support numbered aliases in device tree in SPL"
+ depends on DM
+ default n
help
Most boards will have a '/aliases' node containing the path to
numbered devices (e.g. serial0 = &serial0). This feature can be
support any bus type (I2C, SPI) but so far this only supports
direct memory access.
+config SPL_REGMAP
+ bool "Support register maps in SPL"
+ depends on SPL_DM
+ help
+ Hardware peripherals tend to have one or more sets of registers
+ which can be accessed to control the hardware. A register map
+ models this with a simple read/write interface. It can in principle
+ support any bus type (I2C, SPI) but so far this only supports
+ direct memory access.
+
+config TPL_REGMAP
+ bool "Support register maps in TPL"
+ depends on TPL_DM
+ help
+ Hardware peripherals tend to have one or more sets of registers
+ which can be accessed to control the hardware. A register map
+ models this with a simple read/write interface. It can in principle
+ support any bus type (I2C, SPI) but so far this only supports
+ direct memory access.
+
config SYSCON
bool "Support system controllers"
depends on REGMAP
by this uclass, including accessing registers via regmap and
assigning a unique number to each.
+config SPL_SYSCON
+ bool "Support system controllers in SPL"
+ depends on SPL_REGMAP
+ help
+ Many SoCs have a number of system controllers which are dealt with
+ as a group by a single driver. Some common functionality is provided
+ by this uclass, including accessing registers via regmap and
+ assigning a unique number to each.
+
+config TPL_SYSCON
+ bool "Support system controllers in TPL"
+ depends on TPL_REGMAP
+ help
+ Many SoCs have a number of system controllers which are dealt with
+ as a group by a single driver. Some common functionality is provided
+ by this uclass, including accessing registers via regmap and
+ assigning a unique number to each.
+
config DEVRES
bool "Managed device resources"
depends on DM
If you are unsure about this, Say N here.
+config SIMPLE_BUS
+ bool "Support simple-bus driver"
+ depends on DM && OF_CONTROL
+ default y
+ help
+ Supports the 'simple-bus' driver, which is used on some systems.
+
+config SPL_SIMPLE_BUS
+ bool "Support simple-bus driver in SPL"
+ depends on SPL_DM && SPL_OF_CONTROL
+ default y
+ help
+ Supports the 'simple-bus' driver, which is used on some systems
+ in SPL.
+
+config OF_TRANSLATE
+ bool "Translate addresses using fdt_translate_address"
+ depends on DM && OF_CONTROL
+ default y
+ help
+ If this option is enabled, the reg property will be translated
+ using the fdt_translate_address() function. This is necessary
+ on some platforms (e.g. MVEBU) using complex "ranges"
+ properties in many nodes. As this translation is not handled
+ correctly in the default simple_bus_translate() function.
+
+ If this option is not enabled, simple_bus_translate() will be
+ used for the address translation. This function is faster and
+ smaller in size than fdt_translate_address().
+
+config SPL_OF_TRANSLATE
+ bool "Translate addresses using fdt_translate_address in SPL"
+ depends on SPL_DM && SPL_OF_CONTROL
+ default n
+ help
+ If this option is enabled, the reg property will be translated
+ using the fdt_translate_address() function. This is necessary
+ on some platforms (e.g. MVEBU) using complex "ranges"
+ properties in many nodes. As this translation is not handled
+ correctly in the default simple_bus_translate() function.
+
+ If this option is not enabled, simple_bus_translate() will be
+ used for the address translation. This function is faster and
+ smaller in size than fdt_translate_address().
+
+config OF_ISA_BUS
+ bool
+ depends on OF_TRANSLATE
+ help
+ Is this option is enabled then support for the ISA bus will
+ be included for addresses read from DT. This is something that
+ should be known to be required or not based upon the board
+ being targetted, and whether or not it makes use of an ISA bus.
+
+ The bus is matched based upon its node name equalling "isa". The
+ busses #address-cells should equal 2, with the first cell being
+ used to hold flags & flag 0x1 indicating that the address range
+ should be accessed using I/O port in/out accessors. The second
+ cell holds the offset into ISA bus address space. The #size-cells
+ property should equal 1, and of course holds the size of the
+ address range used by a device.
+
+ If this option is not enabled then support for the ISA bus is
+ not included and any such busses used in DT will be treated as
+ typical simple-bus compatible busses. This will lead to
+ mistranslation of device addresses, so ensure that this is
+ enabled if your board does include an ISA bus.
+
+config DM_DEV_READ_INLINE
+ bool
+ default y if !OF_LIVE
+
endmenu