David Hendricks 97a49113d9 stm32l: clear and then set GPIO mode and pull-up/down settings ...

GPIO mode and pull-up/down registers do not all get initialized to
zero on reset. This patch ensures that all bits in the those registers
are set explicitly. An intermediate variable is used so that changes
are made atomically.

Note: output speed registers are also not all initialized to zero, but
we don't handle that in gpio_pre_init yet.

BUG=none
TEST=tested on newer daisy boards (which needed this patch to boot)

Change-Id: Ice2795197135dcee8f8484e4908dbfcf90fec2c9
Signed-off-by: David Hendricks <dhendrix@chromium.org>

2012-04-23 19:18:42 -07:00

..

build.mk

stm32l: add i2c driver

2012-04-13 12:26:00 -07:00

clock.c

Support dynamically changing the system clock

2012-04-09 10:33:35 -07:00

config.h

stm32l: add support for ADV board

2012-02-16 02:52:29 +00:00

dma.c

Add support for DMA controller

2012-04-11 11:01:50 -07:00

dma.h

Add support for DMA controller

2012-04-11 11:01:50 -07:00

gpio.c

stm32l: clear and then set GPIO mode and pull-up/down settings

2012-04-23 19:18:42 -07:00

hwtimer.c

stm32l: add timer support

2012-02-01 22:49:22 +00:00

i2c.c

stm32l: fix length argument for i2c writes

2012-04-23 10:56:12 -07:00

jtag.c

stm32l: de-duplicate stubs used for all STM32L based boards

2012-02-16 02:52:29 +00:00

keyboard_scan.c

Move externs from .lds file into a header file

2012-04-19 14:29:07 -07:00

registers.h

stm32l: add i2c driver

2012-04-13 12:26:00 -07:00

spi.c

Added HOOK_INIT for driver module inits

2012-04-19 13:08:58 -07:00

system.c

Clean up inits

2012-04-19 11:08:28 -07:00

uart.c

Support warm reboot from one EC image to another.

2012-03-19 15:41:14 -07:00

watchdog.c

Clean up debug console output

2012-03-06 09:28:47 -08:00