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qemu-cr16/include/hw
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Martin Kaiser bd96e10071 imx_serial: set wake bit when we receive a data byte 
The Linux kernel added a flood check for RX data recently in commit
496a4471b7c3 ("serial: imx: work-around for hardware RX flood"). This
check uses the wake bit in the UART status register 2. The wake bit
indicates that the receiver detected a start bit on the RX line. If the
kernel sees a number of RX interrupts without the wake bit being set, it
treats this as spurious data and resets the UART port. imx_serial does
never set the wake bit and triggers the kernel's flood check.

This patch adds support for the wake bit. wake is set when we receive a
new character (it's not set for break events). It seems that wake is
cleared by the kernel driver, the hardware does not have to clear it
automatically after data was read.

The wake bit can be configured as an interrupt source. Support this
mechanism as well.

Co-developed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-06-19 11:35:58 +01:00
..
acpi tpm: Extend common APIs to support TPM TIS I2C 2023-04-20 08:17:15 -04:00
adc hw/arm/npcm7xx: Declare QOM macros using OBJECT_DECLARE_SIMPLE_TYPE() 2023-01-12 17:15:09 +00:00
arm hw/arm: introduce xenpvh machine 2023-06-15 16:46:47 -07:00
audio introduce -audio as a replacement for -soundhw 2022-05-14 12:33:44 +02:00
block hw/block: replace TABs with space 2023-03-24 11:45:46 +01:00
char imx_serial: set wake bit when we receive a data byte 2023-06-19 11:35:58 +01:00
core util/log: Add vector registers to log 2023-06-13 17:42:01 +10:00
cpu
cris include: Include headers where needed 2023-01-08 01:54:22 -05:00
cxl hw/cxl: Introduce cxl_device_get_timestamp() utility function 2023-05-19 10:30:46 -04:00
display include: Include headers where needed 2023-01-08 01:54:22 -05:00
dma include: Include headers where needed 2023-01-08 01:54:22 -05:00
firmware hw/smbios: add core_count2 to smbios table type 4 2022-11-07 14:08:17 -05:00
gpio hw/gpio: replace HWADDR_PRIx with PRIx64 2022-05-25 10:31:33 +02:00
hyperv hw/hyperv/vmbus: Remove unused vmbus_load/save_req() 2022-05-30 19:49:42 +02:00
i2c qtest: Add functions for accessing devices on Aspeed I2C controller 2023-04-20 08:17:15 -04:00
i386 xen-hvm: reorganize xen-hvm and move common function to xen-hvm-common 2023-06-15 16:45:59 -07:00
ide hw/ide: replace TABs with space 2023-03-24 11:45:33 +01:00
input hw/input: Clean up includes 2023-02-08 07:16:23 +01:00
intc hw/intc/loongarch_ipi: Bring back all 4 IPI mailboxes 2023-06-05 11:08:55 +08:00
ipack
ipmi
isa hw/audio/via-ac97: Basic implementation of audio playback 2023-03-08 00:37:48 +01:00
kvm
loongarch hw/loongarch/virt: Set max 256 cpus support on loongarch virt machine 2023-05-15 19:09:33 +08:00
m68k
mem acpi/nvdimm: Define trace events for NVDIMM and substitute nvdimm_debug() 2022-07-26 10:37:46 -04:00
mips hw/mips/bootloader: Handle buffers as opaque arrays 2023-01-13 09:32:32 +01:00
misc hw: arm: allwinner-sramc: Add SRAM Controller support for R40 2023-06-06 10:19:33 +01:00
net hw/net/can: Introduce Xilinx Versal CANFD controller 2023-06-06 10:19:30 +01:00
nubus Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
nvram Revert "x86: return modified setup_data only if read as memory, not as file" 2023-03-02 03:10:46 -05:00
openrisc hw/openrisc: Split re-usable boot time apis out to boot.c 2022-09-04 07:02:56 +01:00
pci hw/pci: Disable PCI_ERR_UNCOR_MASK register for machine type < 8.0 2023-05-19 10:30:46 -04:00
pci-bridge pci/pci_expander_bridge: For CXL HB delay the HB register memory region setup. 2022-06-09 19:32:49 -04:00
pci-host hw/pci-host/pam: Make init_pam() usage more readable 2023-05-19 10:30:46 -04:00
ppc hw/ppc/openpic: Do not open-code ROUND_UP() macro 2023-06-10 10:19:24 -03:00
rdma
remote include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
riscv hw/riscv/opentitan: Correct OpenTitanState parent type/size 2023-06-13 17:19:42 +10:00
rtc hw/rtc: Rename rtc_[get|set]_memory -> mc146818rtc_[get|set]_cmos_data 2023-02-27 22:29:02 +01:00
rx Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
s390x s390x/pv: Fix spurious warning with asynchronous teardown 2023-05-16 09:14:18 +02:00
scsi virtio-scsi: implement BlockDevOps->drained_begin() 2023-05-30 17:32:02 +02:00
sd hw: sd: allwinner-sdhost: Add sun50i-a64 SoC support 2023-06-06 10:19:33 +01:00
sensor hw/sensor: Add IC_DEVICE_ID to ISL voltage regulators 2022-07-14 16:24:38 +02:00
sh4
southbridge hw/isa/piix3: Resolve redundant TYPE_PIIX3_XEN_DEVICE 2023-06-07 15:07:10 +01:00
sparc
ssi Do not include hw/hw.h if it is not necessary 2023-02-27 09:15:38 +01:00
timer hw: Replace isa_get_irq() by isa_bus_get_irq() when ISABus is available 2023-02-27 22:29:02 +01:00
tricore Do not include hw/hw.h if it is not necessary 2023-02-27 09:15:38 +01:00
usb include: Include headers where needed 2023-01-08 01:54:22 -05:00
vfio vfio/migration: Rename entry points 2023-03-07 11:19:07 -07:00
virtio virtio-input: add a virtio-mulitouch device 2023-05-28 13:08:25 +04:00
watchdog hw/watchdog: Allwinner WDT emulation for system reset 2023-04-20 10:21:13 +01:00
xen hw/arm: introduce xenpvh machine 2023-06-15 16:46:47 -07:00
xtensa
boards.h hw: Move the default NIC machine class setting from the x86 to the generic one 2023-05-22 09:39:15 +02:00
clock.h
elf_ops.h replace TABs with spaces 2023-03-20 12:43:50 +01:00
fw-path-provider.h
hotplug.h pci: fix 'hotplugglable' property behavior 2023-03-07 12:38:59 -05:00
hw.h compiler.h: replace QEMU_NORETURN with G_NORETURN 2022-04-21 17:03:51 +04:00
ide.h hw/ide: Declare ide_get_[geometry/bios_chs_trans] in 'hw/ide/internal.h' 2023-02-27 22:29:02 +01:00
irq.h hw/core/irq: remove unused 'qemu_irq_split' function 2022-04-21 11:37:04 +01:00
loader-fit.h
loader.h hw: arm: Support direct boot for Linux/arm64 EFI zboot images 2023-03-06 14:08:12 +00:00
nmi.h
or-irq.h hw: Replace qemu_or_irq typedef by OrIRQState 2023-02-27 13:27:05 +00:00
pcmcia.h replace TABs with spaces 2023-03-20 12:43:50 +01:00
platform-bus.h
ptimer.h ptimer: Rename PTIMER_POLICY_DEFAULT to PTIMER_POLICY_LEGACY 2022-05-19 16:19:03 +01:00
qdev-clock.h
qdev-core.h hw/qdev: introduce qdev_is_realized() helper 2023-05-30 17:32:02 +02:00
qdev-dma.h
qdev-properties-system.h
qdev-properties.h qdev-properties: Add a new macro with bitmask check for uint64_t property 2022-05-14 12:32:41 +02:00
register.h
registerfields.h hw/registerfields: Add shared fields macros 2022-06-22 09:49:34 +02:00
resettable.h
stream.h
sysbus.h
usb.h hw/usb: fix tab indentation 2022-11-08 11:13:48 +01:00
vmstate-if.h