mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
8461bfdca9
qemu/include
History
qianfan Zhao 8461bfdca9 hw: allwinner-i2c: Fix TWI_CNTR_INT_FLAG on SUN6i SoCs 
TWI_CNTR_INT_FLAG is W1C(write 1 to clear and write 0 has non-effect)
register on SUN6i based SoCs, we should lower interrupt when the guest
set this bit.

The linux kernel will hang in irq handler(mv64xxx_i2c_intr) if no
device connected on the i2c bus, next is the trace log:

allwinner_i2c_write write   CNTR(0x0c): 0xc4 A_ACK BUS_EN INT_EN
allwinner_i2c_write write   CNTR(0x0c): 0xcc A_ACK INT_FLAG BUS_EN INT_EN
allwinner_i2c_read  read    CNTR(0x0c): 0xcc A_ACK INT_FLAG BUS_EN INT_EN
allwinner_i2c_read  read    STAT(0x10): 0x20 STAT_M_ADDR_WR_NACK
allwinner_i2c_write write   CNTR(0x0c): 0x54 A_ACK M_STP BUS_EN
allwinner_i2c_write write   CNTR(0x0c): 0x4c A_ACK INT_FLAG BUS_EN
allwinner_i2c_read  read    CNTR(0x0c): 0x4c A_ACK INT_FLAG BUS_EN
allwinner_i2c_read  read    STAT(0x10): 0xf8 STAT_IDLE
allwinner_i2c_write write   CNTR(0x0c): 0x54 A_ACK M_STP BUS_EN
allwinner_i2c_write write   CNTR(0x0c): 0x4c A_ACK INT_FLAG BUS_EN
allwinner_i2c_read  read    CNTR(0x0c): 0x4c A_ACK INT_FLAG BUS_EN
allwinner_i2c_read  read    STAT(0x10): 0xf8 STAT_IDLE
...

Fix it.

Signed-off-by: qianfan Zhao <qianfanguijin@163.com>
Reviewed-by: Strahinja Jankovic <strahinja.p.jankovic@gmail.com>
Tested-by: Strahinja Jankovic <strahinja.p.jankovic@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-03-06 14:08:12 +00:00
..
authz
block block: Mark bdrv_co_refresh_total_sectors() and callers GRAPH_RDLOCK 2023-02-23 19:49:33 +01:00
chardev chardev: src buffer const for write functions 2022-09-29 14:38:05 +04:00
crypto crypto: TLS: introduce check_pending 2023-02-15 11:01:03 -05:00
disas remove unnecessary extern "C" blocks 2023-02-10 14:12:06 +01:00
exec include/exec/gen-icount: Drop tcg_temp_free in gen_tb_start 2023-03-05 13:44:08 -08:00
fpu fpu: Add rebias bool, value and operation 2022-08-31 14:08:05 -03:00
hw hw: allwinner-i2c: Fix TWI_CNTR_INT_FLAG on SUN6i SoCs 2023-03-06 14:08:12 +00:00
io io: Add support for MSG_PEEK for socket channel 2023-02-06 19:22:56 +01:00
libdecnumber Replace config-time define HOST_WORDS_BIGENDIAN 2022-04-06 10:50:37 +02:00
migration migration: Rename res_{postcopy,precopy}_only 2023-02-15 20:04:30 +01:00
monitor i386/xen: add monitor commands to test event injection 2023-03-01 08:22:50 +00:00
net net: Move the code to collect available NIC models to a separate function 2023-02-17 13:31:33 +08:00
qapi rocker: Tweak stubbed out monitor commands' error messages 2023-02-23 14:10:17 +01:00
qemu include/qemu/cpuid: Introduce xgetbv_low 2023-03-05 13:44:07 -08:00
qom qom/object: Remove circular include dependency 2022-06-28 10:53:32 +02:00
scsi coroutine: Clean up superfluous inclusion of qemu/coroutine.h 2023-01-19 10:18:28 +01:00
semihosting semihosting: Allow optional use of semihosting from userspace 2022-09-13 17:18:21 +01:00
standard-headers linux-headers: Update to v6.2-rc8 2023-02-16 12:13:46 -07:00
sysemu kvm/i386: Add xen-evtchn-max-pirq property 2023-03-01 09:09:22 +00:00
tcg tcg: Remove tcg_check_temp_count, tcg_clear_temp_count 2023-03-05 13:44:07 -08:00
ui Do not include "qemu/error-report.h" in headers that do not need it 2023-02-14 09:11:27 +01:00
user include: Include headers where needed 2023-01-08 01:54:22 -05:00
elf.h include/elf.h: add s390x note types 2022-10-26 12:54:59 +04:00
glib-compat.h compiler.h: replace QEMU_NORETURN with G_NORETURN 2022-04-21 17:03:51 +04:00
qemu-io.h
qemu-main.h ui/cocoa: Run qemu_init in the main thread 2022-09-23 14:36:33 +02:00