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imx_serial: Generate interrupt on receive data ready if enabled

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Generate an interrupt if USR2_RDR and UCR4_DREN are both set.

Signed-off-by: Hans-Erik Floryd <hans-erik.floryd@rt-labs.com>
Message-id: 1534341354-11956-1-git-send-email-hans-erik.floryd@rt-labs.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Hans-Erik Floryd 2018-08-20 11:24:31 +01:00 • committed by Peter Maydell
parent 84be3ef1de
commit 3c54cf7705
2 changed files with 3 additions and 1 deletions
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1
include/hw/char/imx_serial.h
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@ -68,6 +68,7 @@
#define UCR2_RXEN (1<<1) /* Receiver enable */
#define UCR2_SRST (1<<0) /* Reset complete */
#define UCR4_DREN BIT(0) /* Receive Data Ready interrupt enable */
#define UCR4_TCEN BIT(3) /* TX complete interrupt enable */
#define UTS1_TXEMPTY (1<<6)