blob: ac681729c032e2ae29c608f7cf7f8b6a0d6f6c5f [file] [log] [blame]
Masahiro Yamada0b11dbf2015-07-26 02:46:26 +09001menu "Generic Driver Options"
2
Masahiro Yamadada333ae2014-10-23 22:26:09 +09003config DM
4 bool "Enable Driver Model"
Masahiro Yamadada333ae2014-10-23 22:26:09 +09005 help
Simon Glassf94a1be2015-02-05 21:41:35 -07006 This config option enables Driver Model. This brings in the core
7 support, including scanning of platform data on start-up. If
8 CONFIG_OF_CONTROL is enabled, the device tree will be scanned also
9 when available.
Simon Glass91a91ff2015-02-05 21:41:36 -070010
11config SPL_DM
12 bool "Enable Driver Model for SPL"
13 depends on DM && SPL
14 help
15 Enable driver model in SPL. You will need to provide a
16 suitable malloc() implementation. If you are not using the
17 full malloc() enabled by CONFIG_SYS_SPL_MALLOC_START,
18 consider using CONFIG_SYS_MALLOC_SIMPLE. In that case you
19 must provide CONFIG_SYS_MALLOC_F_LEN to set the size.
20 In most cases driver model will only allocate a few uclasses
21 and devices in SPL, so 1KB should be enable. See
22 CONFIG_SYS_MALLOC_F_LEN for more details on how to enable it.
23
24config DM_WARN
25 bool "Enable warnings in driver model"
Masahiro Yamadad6489642015-02-24 22:26:21 +090026 depends on DM
27 default y
Simon Glass91a91ff2015-02-05 21:41:36 -070028 help
29 The dm_warn() function can use up quite a bit of space for its
30 strings. By default this is disabled for SPL builds to save space.
31 This will cause dm_warn() to be compiled out - it will do nothing
32 when called.
Simon Glass91a91ff2015-02-05 21:41:36 -070033
34config DM_DEVICE_REMOVE
35 bool "Support device removal"
Masahiro Yamadad6489642015-02-24 22:26:21 +090036 depends on DM
37 default y
Simon Glass91a91ff2015-02-05 21:41:36 -070038 help
39 We can save some code space by dropping support for removing a
40 device. This is not normally required in SPL, so by default this
41 option is disabled for SPL.
Simon Glass91a91ff2015-02-05 21:41:36 -070042
Hans de Goedee5c45642015-07-01 20:52:59 +020043 Note that this may have undesirable results in the USB subsystem as
44 it causes unplugged devices to linger around in the dm-tree, and it
45 causes USB host controllers to not be stopped when booting the OS.
46
Simon Glass91a91ff2015-02-05 21:41:36 -070047config DM_STDIO
48 bool "Support stdio registration"
Masahiro Yamadad6489642015-02-24 22:26:21 +090049 depends on DM
50 default y
Simon Glass91a91ff2015-02-05 21:41:36 -070051 help
52 Normally serial drivers register with stdio so that they can be used
53 as normal output devices. In SPL we don't normally use stdio, so
54 we can omit this feature.
Simon Glass36fa61d2015-02-27 22:06:30 -070055
56config DM_SEQ_ALIAS
57 bool "Support numbered aliases in device tree"
58 depends on DM
59 default y
60 help
61 Most boards will have a '/aliases' node containing the path to
62 numbered devices (e.g. serial0 = &serial0). This feature can be
63 disabled if it is not required, to save code space in SPL.
Simon Glass12dc8e72015-07-17 09:22:07 -060064
65config REGMAP
66 bool "Support register maps"
67 depends on DM
68 help
69 Hardware peripherals tend to have one or more sets of registers
70 which can be accessed to control the hardware. A register map
71 models this with a simple read/write interface. It can in principle
72 support any bus type (I2C, SPI) but so far this only supports
73 direct memory access.
74
huang lin41c7f662015-11-17 14:20:13 +080075config SPL_REGMAP
76 bool "Support register maps in SPL"
77 depends on DM
78 help
79 Hardware peripherals tend to have one or more sets of registers
80 which can be accessed to control the hardware. A register map
81 models this with a simple read/write interface. It can in principle
82 support any bus type (I2C, SPI) but so far this only supports
83 direct memory access.
84
Simon Glass12dc8e72015-07-17 09:22:07 -060085config SYSCON
86 bool "Support system controllers"
87 depends on REGMAP
88 help
89 Many SoCs have a number of system controllers which are dealt with
90 as a group by a single driver. Some common functionality is provided
91 by this uclass, including accessing registers via regmap and
92 assigning a unique number to each.
Masahiro Yamada608f26c2015-07-25 21:52:35 +090093
huang lin41c7f662015-11-17 14:20:13 +080094config SPL_SYSCON
95 bool "Support system controllers in SPL"
96 depends on REGMAP
97 help
98 Many SoCs have a number of system controllers which are dealt with
99 as a group by a single driver. Some common functionality is provided
100 by this uclass, including accessing registers via regmap and
101 assigning a unique number to each.
102
Masahiro Yamadae2282d72015-07-25 21:52:37 +0900103config DEVRES
104 bool "Managed device resources"
105 depends on DM
106 help
107 This option enables the Managed device resources core support.
108 Device resources managed by the devres framework are automatically
109 released whether initialization fails half-way or the device gets
110 detached.
111
112 If this option is disabled, devres functions fall back to
113 non-managed variants. For example, devres_alloc() to kzalloc(),
114 devm_kmalloc() to kmalloc(), etc.
115
Masahiro Yamada608f26c2015-07-25 21:52:35 +0900116config DEBUG_DEVRES
Masahiro Yamada40b6f2d2015-07-25 21:52:38 +0900117 bool "Managed device resources debugging functions"
Masahiro Yamadae2282d72015-07-25 21:52:37 +0900118 depends on DEVRES
Masahiro Yamada608f26c2015-07-25 21:52:35 +0900119 help
120 If this option is enabled, devres debug messages are printed.
Masahiro Yamada40b6f2d2015-07-25 21:52:38 +0900121 Also, a function is available to dump a list of device resources.
Masahiro Yamada608f26c2015-07-25 21:52:35 +0900122 Select this if you are having a problem with devres or want to
123 debug resource management for a managed device.
124
125 If you are unsure about this, Say N here.
Masahiro Yamada0b11dbf2015-07-26 02:46:26 +0900126
Marek Vasut628d7922015-08-03 01:15:48 +0200127config SIMPLE_BUS
128 bool "Support simple-bus driver"
129 depends on DM && OF_CONTROL
130 default y
131 help
132 Supports the 'simple-bus' driver, which is used on some systems.
133
134config SPL_SIMPLE_BUS
135 bool "Support simple-bus driver in SPL"
136 depends on SPL_DM && SPL_OF_CONTROL
137 default n
138 help
139 Supports the 'simple-bus' driver, which is used on some systems
140 in SPL.
141
Stefan Roeseef5cd332015-09-02 07:41:12 +0200142config OF_TRANSLATE
143 bool "Translate addresses using fdt_translate_address"
144 depends on DM && OF_CONTROL
145 default y
146 help
147 If this option is enabled, the reg property will be translated
148 using the fdt_translate_address() function. This is necessary
149 on some platforms (e.g. MVEBU) using complex "ranges"
150 properties in many nodes. As this translation is not handled
151 correctly in the default simple_bus_translate() function.
152
153 If this option is not enabled, simple_bus_translate() will be
154 used for the address translation. This function is faster and
155 smaller in size than fdt_translate_address().
156
157config SPL_OF_TRANSLATE
158 bool "Translate addresses using fdt_translate_address"
159 depends on SPL_DM && SPL_OF_CONTROL
160 default n
161 help
162 If this option is enabled, the reg property will be translated
163 using the fdt_translate_address() function. This is necessary
164 on some platforms (e.g. MVEBU) using complex "ranges"
165 properties in many nodes. As this translation is not handled
166 correctly in the default simple_bus_translate() function.
167
168 If this option is not enabled, simple_bus_translate() will be
169 used for the address translation. This function is faster and
170 smaller in size than fdt_translate_address().
171
Masahiro Yamada0b11dbf2015-07-26 02:46:26 +0900172endmenu