Hi Wolfram,
When an SD-card is inserted on Koelsch (R-Car M2-W), I see:
sh_mobile_sdhi ee100000.mmc: timeout waiting for hardware interrupt (CMD19)
Regardless, the card works afterwards:
mmc0: new ultra high speed SDR104 SDHC card at address aaaa
mmcblk0: mmc0:aaaa SM32G 29.7 GiB
mmcblk0: p1 p2
Note that this only happens for the "fast" slot (SDHI0), not for the
(33%) slower slot.
On Salvator-XS (R-Car H3 ES2.0) I do not see that timeout message
(and reading is 4x faster than on Koelsch).
Sometimes, I also see:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 37 at kernel/dma/debug.c:568 add_dma_entry+0x1f8/0x248
DMA-API: rcar-dmac e6700000.dma-controller: cacheline tracking
EEXIST, overlapping mappings aren't supported
Modules linked in:
CPU: 0 PID: 37 Comm: kworker/0:3 Tainted: G N
6.0.0-rc7-koelsch-00770-g14669bb22198 #1686
Hardware name: Generic R-Car Gen2 (Flattened Device Tree)
Workqueue: events_freezable mmc_rescan
unwind_backtrace from show_stack+0x10/0x14
show_stack from dump_stack_lvl+0x68/0x90
dump_stack_lvl from __warn+0xa8/0x1d8
__warn from warn_slowpath_fmt+0x78/0xb0
warn_slowpath_fmt from add_dma_entry+0x1f8/0x248
add_dma_entry from debug_dma_map_sg+0x250/0x35c
debug_dma_map_sg from __dma_map_sg_attrs+0x6c/0x11c
__dma_map_sg_attrs from dma_map_sg_attrs+0x10/0x1c
dma_map_sg_attrs from renesas_sdhi_sys_dmac_start_dma+0xf8/0x424
renesas_sdhi_sys_dmac_start_dma from tmio_process_mrq+0x124/0x264
tmio_process_mrq from mmc_start_request+0x90/0xa4
mmc_start_request from mmc_wait_for_req+0x64/0xac
mmc_wait_for_req from mmc_send_tuning+0xf4/0x16c
mmc_send_tuning from renesas_sdhi_execute_tuning+0x2a0/0x41c
renesas_sdhi_execute_tuning from mmc_execute_tuning+0x58/0xb8
mmc_execute_tuning from mmc_sd_init_uhs_card.part.0+0x2f0/0x3d4
mmc_sd_init_uhs_card.part.0 from mmc_sd_init_card+0x35c/0x7d4
mmc_sd_init_card from mmc_attach_sd+0xe8/0x164
mmc_attach_sd from mmc_rescan+0x1f0/0x25c
mmc_rescan from process_one_work+0x2f0/0x4c4
process_one_work from worker_thread+0x240/0x2d0
worker_thread from kthread+0xd0/0xe0
kthread from ret_from_fork+0x14/0x34
Exception stack(0xf0925fb0 to 0xf0925ff8)
5fa0: 00000000 00000000
00000000 00000000
5fc0: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
irq event stamp: 3717
hardirqs last enabled at (3729): [<c027e610>] __up_console_sem+0x40/0x60
hardirqs last disabled at (3742): [<c027e5f4>] __up_console_sem+0x24/0x60
softirqs last enabled at (3716): [<c0201330>] __do_softirq+0x168/0x400
softirqs last disabled at (3637): [<c0228590>] __irq_exit_rcu+0x114/0x174
---[ end trace 0000000000000000 ]---
DMA-API: Mapped at:
__dma_map_sg_attrs+0x6c/0x11c
dma_map_sg_attrs+0x10/0x1c
renesas_sdhi_sys_dmac_start_dma+0xf8/0x424
tmio_process_mrq+0x124/0x264
mmc_start_request+0x90/0xa4
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
