Bump QEMU defconfigs to latest longterm kernel 5.4.88.
Please note that QEMU boards not based on 5.4.y were ignored:
- qemu_csky810_virt_defconfig
- qemu_csky807_virt_defconfig
- qemu_csky610_virt_defconfig
- qemu_csky860_virt_defconfig
Tests were carried out on all QEMU boards using Gitlab [1] (commit
message was slightly different, but the patch is identical)
Additional actions needed were:
- board/qemu/sh4-r2d: Remove one of the two kernel patches [2] provided
by Alan Modra fixing rodata alignment, carried here by Romain Naour [3]
to fix an issue preventing kernel from booting with binutils 2.23.
Patch is present in upstream Linux now.
[1] https://gitlab.com/clumsyape/buildroot/-/pipelines/239483891
[2] https://www.sourceware.org/ml/binutils/2019-12/msg00112.html
[3] https://git.busybox.net/buildroot/commit/?id=a2331c8a61bdd71c47492efc818fb0458a349219
Signed-off-by: Geoffrey Le Gourriérec <geoffrey.legourrierec@gmail.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This reverts commit f7a887c368 and
23aee3eac4 since the kernel patch
is not needed as soon as qemu >= 3.1.0 is used with a kernel >=
4.11-rc1.
The qemu emulation of sh-sci driver was fixed by adding basic
timeout handling for 9600 bps [1].
[1] https://git.qemu.org/?p=qemu.git;a=commit;h=71bb4ce1b5592cdc03abc48cdf4ecb15b2db81a0
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This reverts commit 18e8cf159177100e69d528293f8cf6875c0b1bca (kernel)
The last Qemu kernel update [1] introduced a regresion in sh4 SCIF
serial device. Some keyboard presses are very slow to be taken into
account, perhaps not even taken into account at all. This would
explain why our test infrastructure doesn’t manage to login as root
[2][3][4].
git bisect reported a kernel patch from 4.11, increasing RX FIFO
trigger defaults value for sh-sci (H)SCIF. The kernel patch itself
looks good but the Qemu emulation is not ready to handle this new
setting.
>From Qemu (2.12.0): target/sh4/README.sh4
"Configuration of the second serial port (SCIF) is supported. FIFO
handling infrastructure has been started but is not completed yet."
We can't use the first serial port (ttySC0) because it's the second
SH UART that's emulated by Qemu.
In order to be able to test sh4 architecture with newer kernel,
revert to the old behaviour.
[1] 03fb00f217
[2] https://gitlab.com/free-electrons/toolchains-builder/-/jobs/72006425
[3] https://gitlab.com/free-electrons/toolchains-builder/-/jobs/72006427
[4] https://gitlab.com/free-electrons/toolchains-builder/-/jobs/72006426
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
