frank-w
January 7, 2019, 4:45pm
1
Hi,
linus released first 5.0-rc, i have added it to my repo and made basic changes for r2.
currently there is a warning at bootup (drivers/net/phy/phy.c:548 phy_start_aneg+0x110/0x144)
Seems to caused by https://github.com/torvalds/linux/blob/master/drivers/net/ethernet/mediatek/mtk_eth_soc.c#L359
but this specific line exists more than a half year. differences to 4.20 where no error appears is this commit:
i cannot revert it and also not changing back mtk_eth_soc.c
network works so far on quick test. wrote to david miller (net maintainer) about this issue
@Ryder.Lee : can you please ask sean about his email-account (i get still reject-errors)?
regards Frank
1 Like
You can send to Sean Wang [[email protected] ]
frank-w
January 8, 2019, 11:05am
3
got response from sean, he gave me a Patch, i will try this afternoon (17:00 GMT+1)
Patch from Sean fixed the issue, have integrated in my repo and send to mailing-lists/maintainer
boot_5.0.0-rc1-bpi-r2-5.0-rc.log (32,1 KB)
after Patch:
5.0-rc-netfix.log (27,9 KB)
frank-w
January 9, 2019, 9:50am
4
Sent out v2 this morning which fixes the issue a different way depending on comments on v1…
https://patchwork.kernel.org/patch/10753537/
frank-w
January 19, 2019, 2:37pm
5
Patch for this warning (version of heiner kallweit) is merged to upcoming rc3.
I have now poweroff and wifi working on 5.0 (separate branches),hdmi crashes…currently i don’t know why
mtk_drm_init only calls platform_register_drivers with a struct defined above function…currently i don’t know which functions are called to initialize these pointers
&mtk_disp_ovl_driver,
&mtk_disp_rdma_driver,
&mtk_dpi_driver,
&mtk_drm_platform_driver,
&mtk_dsi_driver,
&mtk_mipi_tx_driver,
};
static int __init mtk_drm_init(void)
{
return platform_register_drivers(mtk_drm_drivers,
ARRAY_SIZE(mtk_drm_drivers));
}
static void __exit mtk_drm_exit(void)
{
platform_unregister_drivers(mtk_drm_drivers,
ARRAY_SIZE(mtk_drm_drivers));
}
module_init(mtk_drm_init);
https://github.com/frank-w/BPI-R2-4.14/blob/5.0-hdmi/drivers/base/platform.c#L790 calls __platform_driver_register https://github.com/frank-w/BPI-R2-4.14/blob/5.0-hdmi/drivers/base/platform.c#L627 (first access to substrucure) calls driver_register
i guess crash happens in arch_setup_dma_ops, of_dma_configure or platform_dma_configure
[ 5.363509] Backtrace:
[ 5.365946] [<c05a6010>] (mtk_iommu_domain_free) from [<c05a1544>] (iommu_domain_free+0x20/)
[ 5.374670] r4:decd57a0
[ 5.377192] [<c05a1524>] (iommu_domain_free) from [<c011b85c>] (release_iommu_mapping+0x24/)
[ 5.385922] [<c011b838>] (release_iommu_mapping) from [<c011b8cc>] (arm_iommu_release_mappi)
[ 5.395943] r7:00000000 r6:decd5780 r5:00000000 r4:decd57a0
[ 5.401567] [<c011b89c>] (arm_iommu_release_mapping.part.0) from [<c011cb4c>] (arch_setup_d)
[ 5.411412] r5:00000000 r4:dead1410
[ 5.414968] [<c011ca7c>] (arch_setup_dma_ops) from [<c07d2764>] (of_dma_configure+0x27c/0x3)
[ 5.423521] r6:c0b58e20 r5:00000000 r4:00000000
[ 5.428109] [<c07d24e8>] (of_dma_configure) from [<c060a63c>] (platform_dma_configure+0x28/)
[ 5.436838] r10:c107efdc r9:00000000 r8:c10c0008 r7:00000000 r6:c1117b34 r5:dead1410
[ 5.444612] r4:c1117b30
[ 5.447131] [<c060a614>] (platform_dma_configure) from [<c06079ec>] (really_probe+0xc4/0x42)
[ 5.455602] [<c0607928>] (really_probe) from [<c0607f70>] (driver_probe_device+0x88/0x1e0)
[ 5.463814] r10:00000000 r9:c060a25c r8:00000000 r7:c1008c48 r6:c107efdc r5:c107efdc
[ 5.471588] r4:dead1410
[ 5.474107] [<c0607ee8>] (driver_probe_device) from [<c06081fc>] (__driver_attach+0x134/0x1)
[ 5.482663] r9:c060a25c r8:00000000 r7:c1008c48 r6:c107efdc r5:dead1444 r4:dead1410
[ 5.490358] [<c06080c8>] (__driver_attach) from [<c0605510>] (bus_for_each_dev+0x84/0xc4)
[ 5.498480] r7:c1008c48 r6:c06080c8 r5:c107efdc r4:00000000
[ 5.504102] [<c060548c>] (bus_for_each_dev) from [<c0607344>] (driver_attach+0x2c/0x30)
[ 5.512052] r7:c10bff30 r6:c107fad8 r5:decde780 r4:c107efdc
[ 5.517675] [<c0607318>] (driver_attach) from [<c0606c68>] (bus_add_driver+0x1d0/0x274)
[ 5.525629] [<c0606a98>] (bus_add_driver) from [<c0608fa8>] (driver_register+0x84/0x118)
[ 5.533666] r8:c060a20c r7:c0609c60 r6:c10c0230 r5:00000002 r4:c107efdc
[ 5.540323] [<c0608f24>] (driver_register) from [<c060a538>] (__platform_register_drivers+0)
We will try to find the root cause of crash.
frank-w
January 22, 2019, 6:13am
7
frank-w
January 22, 2019, 4:07pm
8
without this commit, no crash occours, and i got the xorg running (fbcon not working)
git revert a9bf2eec5a6fc01a0a5250eaf0bf61dfd382a78a
got Patch from author of the reverted Patch, and used this instead of the revert
xserver works, fbcon still not
Patch has arrived 5.0 (mtk_iommu_v1.c): https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1c0490ce902206f4685f812fa81304fd1adf4e35
cioby23
March 22, 2019, 11:24am
9
What are the BPI-R2 current features supported in this kernel 5.0 release ?
I looked on your github page and I see information up to kernel 4.19.
frank-w
March 22, 2019, 11:27am
10
I have wifi and poweroff working in 5.0 but imho not yet merged because of start of 5.1.
Currently i have no clue how to get fbcon working and without help on this i do not merge hdmi-driver…in 5.1 no hdmi does work