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Masahiro Yamadacc85b7b2015-07-26 02:46:26 +09001menu "Generic Driver Options"
2
Masahiro Yamada57ad8ee2014-10-23 22:26:09 +09003config DM
4 bool "Enable Driver Model"
Masahiro Yamada57ad8ee2014-10-23 22:26:09 +09005 help
Simon Glassd8b771d2015-02-05 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 Glass93e414d2015-02-05 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 Yamadacfc2f7d2015-02-24 22:26:21 +090026 depends on DM
27 default y
Simon Glass93e414d2015-02-05 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 Glass93e414d2015-02-05 21:41:36 -070033
34config DM_DEVICE_REMOVE
35 bool "Support device removal"
Masahiro Yamadacfc2f7d2015-02-24 22:26:21 +090036 depends on DM
37 default y
Simon Glass93e414d2015-02-05 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 Glass93e414d2015-02-05 21:41:36 -070042
Hans de Goede246ba262015-07-01 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 Glass93e414d2015-02-05 21:41:36 -070047config DM_STDIO
48 bool "Support stdio registration"
Masahiro Yamadacfc2f7d2015-02-24 22:26:21 +090049 depends on DM
50 default y
Simon Glass93e414d2015-02-05 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 Glass1bd3deb2015-02-27 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
Nathan Rossi7fa6ff42016-01-08 03:00:45 +100063 disabled if it is not required.
64
65config SPL_DM_SEQ_ALIAS
66 bool "Support numbered aliases in device tree in SPL"
67 depends on DM
68 default n
69 help
70 Most boards will have a '/aliases' node containing the path to
71 numbered devices (e.g. serial0 = &serial0). This feature can be
Simon Glass1bd3deb2015-02-27 22:06:30 -070072 disabled if it is not required, to save code space in SPL.
Simon Glass8e5efa02015-07-17 09:22:07 -060073
74config REGMAP
75 bool "Support register maps"
76 depends on DM
77 help
78 Hardware peripherals tend to have one or more sets of registers
79 which can be accessed to control the hardware. A register map
80 models this with a simple read/write interface. It can in principle
81 support any bus type (I2C, SPI) but so far this only supports
82 direct memory access.
83
huang lindd8515e2015-11-17 14:20:13 +080084config SPL_REGMAP
85 bool "Support register maps in SPL"
86 depends on DM
87 help
88 Hardware peripherals tend to have one or more sets of registers
89 which can be accessed to control the hardware. A register map
90 models this with a simple read/write interface. It can in principle
91 support any bus type (I2C, SPI) but so far this only supports
92 direct memory access.
93
Simon Glass8e5efa02015-07-17 09:22:07 -060094config SYSCON
95 bool "Support system controllers"
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.
Masahiro Yamada8b15b162015-07-25 21:52:35 +0900102
huang lindd8515e2015-11-17 14:20:13 +0800103config SPL_SYSCON
104 bool "Support system controllers in SPL"
105 depends on REGMAP
106 help
107 Many SoCs have a number of system controllers which are dealt with
108 as a group by a single driver. Some common functionality is provided
109 by this uclass, including accessing registers via regmap and
110 assigning a unique number to each.
111
Masahiro Yamada029bfca2015-07-25 21:52:37 +0900112config DEVRES
113 bool "Managed device resources"
114 depends on DM
115 help
116 This option enables the Managed device resources core support.
117 Device resources managed by the devres framework are automatically
118 released whether initialization fails half-way or the device gets
119 detached.
120
121 If this option is disabled, devres functions fall back to
122 non-managed variants. For example, devres_alloc() to kzalloc(),
123 devm_kmalloc() to kmalloc(), etc.
124
Masahiro Yamada8b15b162015-07-25 21:52:35 +0900125config DEBUG_DEVRES
Masahiro Yamadaf929c0b2015-07-25 21:52:38 +0900126 bool "Managed device resources debugging functions"
Masahiro Yamada029bfca2015-07-25 21:52:37 +0900127 depends on DEVRES
Masahiro Yamada8b15b162015-07-25 21:52:35 +0900128 help
129 If this option is enabled, devres debug messages are printed.
Masahiro Yamadaf929c0b2015-07-25 21:52:38 +0900130 Also, a function is available to dump a list of device resources.
Masahiro Yamada8b15b162015-07-25 21:52:35 +0900131 Select this if you are having a problem with devres or want to
132 debug resource management for a managed device.
133
134 If you are unsure about this, Say N here.
Masahiro Yamadacc85b7b2015-07-26 02:46:26 +0900135
Marek Vasut298e6082015-08-03 01:15:48 +0200136config SIMPLE_BUS
137 bool "Support simple-bus driver"
138 depends on DM && OF_CONTROL
139 default y
140 help
141 Supports the 'simple-bus' driver, which is used on some systems.
142
143config SPL_SIMPLE_BUS
144 bool "Support simple-bus driver in SPL"
145 depends on SPL_DM && SPL_OF_CONTROL
Michal Simekb32467f2015-12-01 08:37:16 +0100146 default y
Marek Vasut298e6082015-08-03 01:15:48 +0200147 help
148 Supports the 'simple-bus' driver, which is used on some systems
149 in SPL.
150
Stefan Roeseadc09052015-09-02 07:41:12 +0200151config OF_TRANSLATE
152 bool "Translate addresses using fdt_translate_address"
153 depends on DM && OF_CONTROL
154 default y
155 help
156 If this option is enabled, the reg property will be translated
157 using the fdt_translate_address() function. This is necessary
158 on some platforms (e.g. MVEBU) using complex "ranges"
159 properties in many nodes. As this translation is not handled
160 correctly in the default simple_bus_translate() function.
161
162 If this option is not enabled, simple_bus_translate() will be
163 used for the address translation. This function is faster and
164 smaller in size than fdt_translate_address().
165
166config SPL_OF_TRANSLATE
Stefan Roesef05eeb22015-11-26 13:38:01 +0100167 bool "Translate addresses using fdt_translate_address in SPL"
Stefan Roeseadc09052015-09-02 07:41:12 +0200168 depends on SPL_DM && SPL_OF_CONTROL
169 default n
170 help
171 If this option is enabled, the reg property will be translated
172 using the fdt_translate_address() function. This is necessary
173 on some platforms (e.g. MVEBU) using complex "ranges"
174 properties in many nodes. As this translation is not handled
175 correctly in the default simple_bus_translate() function.
176
177 If this option is not enabled, simple_bus_translate() will be
178 used for the address translation. This function is faster and
179 smaller in size than fdt_translate_address().
180
Masahiro Yamadacc85b7b2015-07-26 02:46:26 +0900181endmenu