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| author | Daisuke Nojiri <dnojiri@chromium.org> | 2016-04-21 11:14:03 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-04-25 16:49:01 -0700 |
| commit | cb0d8108e5a5b630ec05a8d21a824cb601246bf5 (patch) | |
| tree | 022345cbe80da2a4479144cc7969cbb84dff355b /chip/stm32/config_chip.h | |
| parent | a1fc785977074b4d5b6ebaa826a07374353374dd (diff) | |
| download | chrome-ec-cb0d8108e5a5b630ec05a8d21a824cb601246bf5.tar.gz | |
STM32: Add dma_select_channel
dma_select_channel selects which stream (peripheral) to be used on a
specific channel. Some STM32 chips simply logically OR requests, thus
do not require this selection.
BUG=none
BRANCH=tot
TEST=make buildall && make tests. Verified on stm32l476g-eval.
Change-Id: I7b64b78bdec80658992f58cb4c94ade972a1081c
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/340107
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Diffstat (limited to 'chip/stm32/config_chip.h')
| -rw-r--r-- | chip/stm32/config_chip.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/chip/stm32/config_chip.h b/chip/stm32/config_chip.h index f77fdf059e..87ebd21c09 100644 --- a/chip/stm32/config_chip.h +++ b/chip/stm32/config_chip.h @@ -96,6 +96,9 @@ /* Use DMA */ #define CONFIG_DMA +/* Number of peripheral request signals per DMA channel */ +#define STM32_DMA_PERIPHERALS_PER_CHANNEL 4 + /* * Use DMA for UART transmit for all platforms. DMA for UART receive is * enabled on a per-chip basis because it doesn't seem to work reliably on |