From 46d3fb634cb0e44c6cf0ed3a996d6996f3818c2d Mon Sep 17 00:00:00 2001 From: Andrey Smirnov Date: Thu, 15 Mar 2018 12:11:41 -0700 Subject: char: i.MX: Add support for "TX complete" interrupt Add support for "TX complete"/TXDC interrupt generate by real HW since it is needed to support guests other than Linux. Based on the patch by Bill Paul as found here: https://bugs.launchpad.net/qemu/+bug/1753314 Cc: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org Cc: Bill Paul Cc: Peter Maydell Signed-off-by: Bill Paul Signed-off-by: Andrey Smirnov Message-id: 20180315191141.6789-2-andrew.smirnov@gmail.com Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell --- include/hw/char/imx_serial.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/hw/char/imx_serial.h b/include/hw/char/imx_serial.h index baeec3183f..5b99cee7cf 100644 --- a/include/hw/char/imx_serial.h +++ b/include/hw/char/imx_serial.h @@ -67,6 +67,8 @@ #define UCR2_RXEN (1<<1) /* Receiver enable */ #define UCR2_SRST (1<<0) /* Reset complete */ +#define UCR4_TCEN BIT(3) /* TX complete interrupt enable */ + #define UTS1_TXEMPTY (1<<6) #define UTS1_RXEMPTY (1<<5) #define UTS1_TXFULL (1<<4) @@ -95,6 +97,7 @@ typedef struct IMXSerialState { uint32_t ubmr; uint32_t ubrc; uint32_t ucr3; + uint32_t ucr4; qemu_irq irq; CharBackend chr; -- cgit v1.2.3-55-g7522