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https://github.com/brain-hackers/u-boot-brain
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8a45b22057
Using the internal vs. external pull resistors it is possible to get
27 different combinations from 3 strapping pins. Add an implementation
of this.
This involves updating the sandbox GPIO driver to model external and
(weaker) internal pull resistors. The get_value() method now takes account
of what is driving a pin:
sandbox: GPIOD_EXT_DRIVEN - in which case GPIO_EXT_HIGH provides the
value
outside source - in which case GPIO_EXT_PULL_UP/DOWN indicates the
external state and we work the final state using those flags and
the internal GPIOD_PULL_UP/DOWN flags
Of course the outside source does not really exist in sandbox. We are just
modelling it for test purpose.
Signed-off-by: Simon Glass <sjg@chromium.org>
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| .. | ||
| cmd | ||
| dm | ||
| env | ||
| fs | ||
| image | ||
| lib | ||
| log | ||
| optee | ||
| overlay | ||
| py | ||
| stdint | ||
| trace | ||
| bloblist.c | ||
| bootm.c | ||
| cmd_ut.c | ||
| command_ut.c | ||
| common.sh | ||
| compression.c | ||
| Kconfig | ||
| Makefile | ||
| nokia_rx51_test.sh | ||
| print_ut.c | ||
| run | ||
| str_ut.c | ||
| time_ut.c | ||
| unicode_ut.c | ||
| ut.c | ||