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| author | Nick Sanders <nsanders@chromium.org> | 2017-02-06 22:08:58 -0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2017-03-21 16:47:38 -0700 |
| commit | c2482183ae88ebdc61837531668c87b5c5dc1322 (patch) | |
| tree | 6dc99b8125dce8ee28df2303a59963dac318d636 /chip | |
| parent | ecf28dc3e6f8b2b00a16a988956f9ba421d503ed (diff) | |
| download | chrome-ec-c2482183ae88ebdc61837531668c87b5c5dc1322.tar.gz | |
tigertail: usb-c mux
tigertail allows muxing a usb-c port onto two different
passthough targets. This allows for automated switching
between USB host and device without DUT or endpoint knowledge.
tigertail also routes SBU lines to stm32 UART, and has INAs on
VBUS and VCONN to measure power.
BUG=b:35849284
BRANCH=None
TEST=Muxing power, muxing USB, uart works, INAs work.
Change-Id: I5bf2ba038aa78e59352ad99cd71efb0f0d0fbec9
Reviewed-on: https://chromium-review.googlesource.com/438677
Commit-Ready: Nick Sanders <nsanders@chromium.org>
Tested-by: Nick Sanders <nsanders@chromium.org>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Diffstat (limited to 'chip')
| -rw-r--r-- | chip/stm32/registers.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/chip/stm32/registers.h b/chip/stm32/registers.h index 4f79beb769..a8104114cf 100644 --- a/chip/stm32/registers.h +++ b/chip/stm32/registers.h @@ -224,6 +224,7 @@ #define STM32_USART_CR1_TXEIE (1 << 7) #define STM32_USART_CR1_OVER8 (1 << 15) #define STM32_USART_CR2(base) STM32_USART_REG(base, 0x04) +#define STM32_USART_CR2_SWAP (1 << 15) #define STM32_USART_CR3(base) STM32_USART_REG(base, 0x08) #define STM32_USART_CR3_EIE (1 << 0) #define STM32_USART_CR3_DMAR (1 << 6) |