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spl: dm: Add SPL_DM_SEQ_ALIAS config option

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The Device Model sequence alias feature is required by some Uclasses.
Instead of disabling the feature for all SPL targets allow it to be
configured.

The config option is disabled by default to reduce code size for targets
that are not interested or do not require this feature.

Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Marek Vasut <marex@denx.de>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Nathan Rossi 2016-01-08 03:00:45 +10:00 committed by Michal Simek
parent fa85e826c1
commit 4f627c5a59
3 changed files with 10 additions and 2 deletions
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9
drivers/core/Kconfig
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@ -57,6 +57,15 @@ 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.
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

2
drivers/core/device.c
View File

@ -64,7 +64,7 @@ int device_bind(struct udevice *parent, const struct driver *drv,
dev->seq = -1;
dev->req_seq = -1;
if (CONFIG_IS_ENABLED(OF_CONTROL) && IS_ENABLED(CONFIG_DM_SEQ_ALIAS)) {
if (CONFIG_IS_ENABLED(OF_CONTROL) && CONFIG_IS_ENABLED(DM_SEQ_ALIAS)) {
/*
* Some devices, such as a SPI bus, I2C bus and serial ports
* are numbered using aliases.

1
include/config_uncmd_spl.h
View File

@ -29,7 +29,6 @@
#endif
#undef CONFIG_DM_WARN
#undef CONFIG_DM_SEQ_ALIAS
#undef CONFIG_DM_STDIO
#endif /* CONFIG_SPL_BUILD */