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Date:   Wed, 5 May 2021 21:26:06 +0200
From:   Corentin Labbe <clabbe.montjoie@gmail.com>
To:     Linus Walleij <linus.walleij@linaro.org>
Cc:     Hans Ulli Kroll <ulli.kroll@googlemail.com>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: gemini: sl3516: Mainlining of NS 2502
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Le Wed, Apr 07, 2021 at 11:34:29AM +0200, Linus Walleij a ?crit :
> On Tue, Apr 6, 2021 at 2:05 PM Corentin Labbe <clabbe.montjoie@gmail.com> wrote:
> 
> > You could find photos at http://kernel.montjoie.ovh/gemini/
> > There are also photos of another SL3516 SoC based device (a SSI 1328 NAS), but I fail to setup a serial on it, so I keep it for later.
> 
> > > For USB try this patch:
> > > https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git/commit/?h=gemini-usb&id=cbaf6cdf770b90de5f10bfa5112c679f1dffe948
> > >
> >
> > One of the USB port is now working.
> 
> Hey nice! :D
> 
> The USB patch is not very widely tested, so it may need some shaping
> up.
> 

Hello

It seems that USB is still a bit buggy, device are detected only if plugged before boot.

I hit a problem on the NS2502, sata drives does not work well:
gemini_sata_bridge 46000000.sata: SATA ID 00000e00, PHY ID: 01000100
gemini_sata_bridge 46000000.sata: set up the Gemini IDE/SATA nexus
pata_ftide010 63000000.ide: set up Gemini PATA0
pata_ftide010 63000000.ide: device ID 00000500, irq 27, reg [mem 0x63000000-0x63000fff]
pata_ftide010 63000000.ide: SATA0 (master) start
gemini_sata_bridge 46000000.sata: SATA0 PHY ready
pata_ftide010 63000000.ide: brought 1 bridges online
scsi host0: pata_ftide010
ata1: SATA max UDMA/133 irq 27
libphy: Fixed MDIO Bus: probed
libphy: GPIO Bitbanged MDIO: probed
ata1.00: qc timeout (cmd 0x27)
ata1.00: failed to read native max address (err_mask=0x4)
ata1.00: HPA support seems broken, skipping HPA handling
ata1.00: ATA-8: WDC WD10EAVS-00D7B1, 01.01A01, max UDMA/133
ata1.00: 1953525168 sectors, multi 0: LBA48 NCQ (depth 0/32)
scsi 0:0:0:0: Direct-Access     ATA      WDC WD10EAVS-00D 1A01 PQ: 0 ANSI: 5
sd 0:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/932 GiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
 sda: sda1
sd 0:0:0:0: [sda] Attached SCSI disk
tun: Universal TUN/TAP device driver, 1.6
gmac-gemini 60000000.ethernet: Ethernet device ID: 0x000, revision 0x1
gemini-ethernet-port 60008000.ethernet-port: probe 60008000.ethernet-port ID 0
gemini-ethernet-port 60008000.ethernet-port: Old MAC from hw 0x000000000000000000000000
gemini-ethernet-port 60008000.ethernet-port: HW ADDR FROM OF 00:1f:1f:8e:65:e2
gemini-ethernet-port 60008000.ethernet-port (unnamed net_device) (uninitialized): RGMII: set GMAC0 and GMAC1 to MII/RGMII mode
RTL8211B Gigabit Ethernet gpio-0:01: attached PHY driver (mii_bus:phy_addr=gpio-0:01, irq=POLL)
gemini-ethernet-port 60008000.ethernet-port eth0: irq 31, DMA @ 0x0x60008000, GMAC @ 0x0x6000a000
gemini-ethernet-port 6000c000.ethernet-port: probe 6000c000.ethernet-port ID 1
gemini-ethernet-port 6000c000.ethernet-port: ethernet address 0x000000000000000000000000 invalid
gemini-ethernet-port 6000c000.ethernet-port: using a random ethernet address
gemini-ethernet-port 6000c000.ethernet-port (unnamed net_device) (uninitialized): PHY init failed
rtc-ftrtc010 45000000.rtc: registered as rtc0
rtc-ftrtc010 45000000.rtc: setting system clock to 2021-05-05T18:49:18 UTC (1620240558)
gemini-poweroff 4b000000.power-controller: other power management IRQ
gemini-poweroff 4b000000.power-controller: Gemini poweroff driver registered
ata1: lost interrupt (Status 0x58)
ata1: lost interrupt (Status 0x58)
ftwdt010-wdt 41000000.watchdog: FTWDT010 watchdog driver enabled
device-mapper: ioctl: 4.45.0-ioctl (2021-03-22) initialised: dm-devel@redhat.com
sl3516-crypto 62000000.crypto: will run requests pump with realtime priority
sl3516-crypto 62000000.crypto: DEBUG: Register ecb(aes)
sl3516-crypto 62000000.crypto: Fallback for ecb-aes-sl3516 is ecb(aes-generic)
sl3516-crypto 62000000.crypto: SL3516 dev a00 rev 0
random: crng init done
sl3516-crypto 62000000.crypto: SL3516 DMA dev 0 rev 1
NET: Registered protocol family 17
Freeing unused kernel memory: 5320K
Kernel memory protection not selected by kernel config.
Run /init as init process

[...]
# crypsetup stuff
[...]
# mount /dev/mapper/backup /mnt/
ata1: lost interrupt (Status 0x50)
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
ata1.00: failed command: WRITE DMA
ata1.00: cmd ca/00:08:00:18:00/00:00:00:00:00/e0 tag 0 dma 4096 out
         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1: soft resetting link
ata1.00: configured for UDMA/133
ata1.00: device reported invalid CHS sector 0
ata1: EH complete
ata1: lost interrupt (Status 0x50)
ata1.00: limiting speed to UDMA/100:PIO4
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
ata1.00: failed command: WRITE DMA
ata1.00: cmd ca/00:08:00:18:00/00:00:00:00:00/e0 tag 0 dma 4096 out
         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1: soft resetting link
ata1.00: configured for UDMA/100
ata1.00: device reported invalid CHS sector 0
ata1: EH complete
ata1: lost interrupt (Status 0x50)
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
ata1.00: failed command: WRITE DMA
ata1.00: cmd ca/00:08:00:18:00/00:00:00:00:00/e0 tag 0 dma 4096 out
         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1: soft resetting link
ata1.00: configured for UDMA/100
ata1.00: device reported invalid CHS sector 0
ata1: EH complete
ata1: lost interrupt (Status 0x50)
ata1.00: limiting speed to UDMA/33:PIO4
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
ata1.00: failed command: WRITE DMA
ata1.00: cmd ca/00:08:00:18:00/00:00:00:00:00/e0 tag 0 dma 4096 out
         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1: soft resetting link
ata1.00: configured for UDMA/33
ata1.00: device reported invalid CHS sector 0
ata1: EH complete
ata1: lost interrupt (Status 0x50)
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
ata1.00: failed command: WRITE DMA
ata1.00: cmd ca/00:08:00:18:00/00:00:00:00:00/e0 tag 0 dma 4096 out
         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1: soft resetting link
ata1.00: configured for UDMA/33
ata1.00: device reported invalid CHS sector 0
ata1: EH complete
ata1: lost interrupt (Status 0x50)
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
ata1.00: failed command: WRITE DMA
ata1.00: cmd ca/00:08:00:18:00/00:00:00:00:00/e0 tag 0 dma 4096 out
         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1: soft resetting link
ata1.00: configured for UDMA/33
ata1.00: device reported invalid CHS sector 0
sd 0:0:0:0: [sda] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 cmd_age=188s
sd 0:0:0:0: [sda] tag#0 Sense Key : 0x5 [current] 
sd 0:0:0:0: [sda] tag#0 ASC=0x21 ASCQ=0x4 
sd 0:0:0:0: [sda] tag#0 CDB: opcode=0x2a 2a 00 00 00 18 00 00 00 08 00
blk_update_request: I/O error, dev sda, sector 6144 op 0x1:(WRITE) flags 0x800 phys_seg 1 prio class 0
blk_update_request: I/O error, dev sda, sector 6144 op 0x1:(WRITE) flags 0x800 phys_seg 1 prio class 0
Buffer I/O error on dev dm-0, logical block 0, lost sync page write
EXT4-fs (dm-0): I/O error while writing superblock
ata1: EH complete
EXT4-fs (dm-0): mount failed

It seems a problem soon after driver probe (qc timeout and HPA error).
Any idea ?

The SATA works well on my other board (SSI1328)
having one or two disk does not change the behavour.