X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=drivers%2Fcore%2FKconfig;h=41f4e695e8af8a8035f605049771b96dc4462203;hp=d2799dc861ff5a661ff6717c985285f263ebd1e9;hb=6d32e5fcf3fd1250db38716a1573b7d5543886dd;hpb=8f02caac64980faa73b2bf00462b400c86257d04

diff --git a/drivers/core/Kconfig b/drivers/core/Kconfig
index d2799dc861..41f4e695e8 100644
--- a/drivers/core/Kconfig
+++ b/drivers/core/Kconfig
@@ -1,6 +1,123 @@
+menu "Generic Driver Options"
+
 config DM
 	bool "Enable Driver Model"
-	depends on !SPL_BUILD
 	help
-	  This config option enables Driver Model.
-	  To use legacy drivers, say N.
+	  This config option enables Driver Model. This brings in the core
+	  support, including scanning of platform data on start-up. If
+	  CONFIG_OF_CONTROL is enabled, the device tree will be scanned also
+	  when available.
+
+config SPL_DM
+	bool "Enable Driver Model for SPL"
+	depends on DM && SPL
+	help
+	  Enable driver model in SPL. 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_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 DM_WARN
+	bool "Enable warnings in driver model"
+	depends on DM
+	default y
+	help
+	  The dm_warn() function can use up quite a bit of space for its
+	  strings. By default this is disabled for SPL builds to save space.
+	  This will cause dm_warn() to be compiled out - it will do nothing
+	  when called.
+
+config DM_DEVICE_REMOVE
+	bool "Support device removal"
+	depends on DM
+	default y
+	help
+	  We can save some code space by dropping support for removing a
+	  device. This is not normally required in SPL, so by default this
+	  option is disabled for SPL.
+
+	  Note that this may have undesirable results in the USB subsystem as
+	  it causes unplugged devices to linger around in the dm-tree, and it
+	  causes USB host controllers to not be stopped when booting the OS.
+
+config DM_STDIO
+	bool "Support stdio registration"
+	depends on DM
+	default y
+	help
+	  Normally serial drivers register with stdio so that they can be used
+	  as normal output devices. In SPL we don't normally use stdio, so
+	  we can omit this feature.
+
+config DM_SEQ_ALIAS
+	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, to save code space in SPL.
+
+config REGMAP
+	bool "Support register maps"
+	depends on 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
+	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
+	help
+	  This option enables the Managed device resources core support.
+	  Device resources managed by the devres framework are automatically
+	  released whether initialization fails half-way or the device gets
+	  detached.
+
+	  If this option is disabled, devres functions fall back to
+	  non-managed variants.  For example, devres_alloc() to kzalloc(),
+	  devm_kmalloc() to kmalloc(), etc.
+
+config DEBUG_DEVRES
+	bool "Managed device resources debugging functions"
+	depends on DEVRES
+	help
+	  If this option is enabled, devres debug messages are printed.
+	  Also, a function is available to dump a list of device resources.
+	  Select this if you are having a problem with devres or want to
+	  debug resource management for a managed device.
+
+	  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 n
+	help
+	  Supports the 'simple-bus' driver, which is used on some systems
+	  in SPL.
+
+endmenu