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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/registers.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/registers.h')
| -rw-r--r-- | chip/stm32/registers.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/chip/stm32/registers.h b/chip/stm32/registers.h index 283fd44498..74eee526cb 100644 --- a/chip/stm32/registers.h +++ b/chip/stm32/registers.h @@ -1233,6 +1233,9 @@ typedef volatile struct stm32_dma_regs stm32_dma_regs_t; #define STM32_DMA_REGS(channel) \ ((channel) < STM32_DMAC_PER_CTLR ? STM32_DMA1_REGS : STM32_DMA2_REGS) +#define STM32_DMA_CSELR(channel) \ + REG32(((channel) < STM32_DMAC_PER_CTLR ? \ + STM32_DMA1_BASE : STM32_DMA2_BASE) + 0xA8) #else #define STM32_DMA_REGS(channel) STM32_DMA1_REGS #endif |