More rtsx issues (13.0-R system) was: Re: CURRENT crashes at early boot on Lenovo T540p...

From: Rodney W. Grimes <freebsd-rwg_at_gndrsh.dnsmgr.net>
Date: Thu, 13 May 2021 12:00:41 -0700 (PDT)
> On 12.05.2021 21:01, Marc Veldman wrote:
> 
> > I?m not sure if this is an interesting data point or not,
> > but a warm boot without the card inserted succeeds after
> > a cold boot with the card inserted.
> 
>   It could explain, why my tests with "same code path" gave different results!

I am suspect of 2 things here, something the bios does that leaves
the card in a state that alters the loader's disk probing, and
that probling itself leaving the device in a state that our kernel
does not like.

I have it very "odd" that I can boot from a rtsx sd card, ie the kernel
gets loaded, but fails at "mountroot" phase due to a sd card timeout.
If I simply cycle the sd card in and out of its socket and then
give the right command string to mountroot it goes on to multiuser
without issue.

I'll also note that if I am booting from other disks (nvme or usb)
that I get these same sd card timeouts and I have to cycle the
card in and out of the socket to use it:

rtsx0: <2.0c Realtek RTS525A PCI MMC/SD Card Reader> mem 0xe1000000-0xe1000fff irq 18 at device 0.0 on pci3
rtsx0: pci_read_config() error - reg: 0xeeffffaa
rtsx0: Card present
mmc0: <MMC/SD bus> on rtsx0
rtsx0: CRC error
rtsx0: Transfer fail - status: 0x90010080
rtsx0: CRC error
rtsx0: Transfer fail - status: 0x90010080
rtsx0: CRC error
rtsx0: Transfer fail - status: 0x90010080
rtsx0: CRC error
rtsx0: Transfer fail - status: 0x90010080
rtsx0: Interrupt card inserted/removed
rtsx0: Card absent
rtsx0: Interrupt card inserted/removed
rtsx0: Card present
mmc0: <MMC/SD bus> on rtsx0

(The last 5 lines caused by me removeing/inserting the card)

Further note that this is a different controller chip version,
from a Dell E5470:

rtsx0_at_pci0:3:0:0:       class=0xff0000 rev=0x01 hdr=0x00 vendor=0x10ec device=0x525a subvendor=0x1028 subdevice=0x06de
    vendor     = 'Realtek Semiconductor Co., Ltd.'
    device     = 'RTS525A PCI Express Card Reader'
    bar   [14] = type Memory, range 32, base 0xe1000000, size 4096, enabled
    cap 01[80] = powerspec 3  supports D0 D1 D2 D3  current D0
    cap 05[90] = MSI supports 1 message, 64 bit enabled with 1 message
    cap 10[b0] = PCI-Express 2 endpoint max data 256(512) RO
                 max read 512
                 link x1(x1) speed 5.0(5.0) ASPM disabled(L0s/L1) ClockPM enabled
    ecap 0001[100] = AER 2 0 fatal 0 non-fatal 1 corrected
    ecap 0003[148] = Serial 1 00000001004ce000
    ecap 0018[158] = LTR 1
    ecap 001e[160] = L1 PM Substates 1

> // Lev Serebryakov
-- 
Rod Grimes                                                 rgrimes_at_freebsd.org
Received on Thu May 13 2021 - 17:00:46 UTC

This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:41:28 UTC