Support for m.2 sata on Pcie


#1

Hello,

Can anyone advise whether an m.2 sata hdd will work if inserted into the pcie port?


#2

Yes it’s supposed to be supported. However when I boot my rock960 with last Debian image I get PCIE controller probe error (probe of f8000000.pcie failed with error -110):

root@linaro-alip:~# uname -a
Linux linaro-alip 4.4.103 #1 SMP Tue Jan 9 14:10:55 CST 2018 aarch64 GNU/Linux
root@linaro-alip:~# dmesg | grep -i pci
               PCI I/O : 0xffffffbffee00000 - 0xffffffbfffe00000   (    16 MB)
[    0.106822] PCI/MSI: /interrupt-controller@fee00000/interrupt-controller@fee20000 domain created
[    0.248110] of_get_named_gpiod_flags: parsed 'gpio' property of node '/vcc3v3-pcie-regulator[0]' - status (0)
[    0.248150] reg-fixed-voltage vcc3v3-pcie-regulator: Looking up vin-supply from device tree
[    0.248181] vcc3v3_pcie: supplied by vcc3v3_sys
[    0.320294] vcc3v3_pcie: at 3300 mV 
[    0.320523] reg-fixed-voltage vcc3v3-pcie-regulator: vcc3v3_pcie supplying 0uV
[    0.393304] PCI: CLS 0 bytes, default 64
[    0.424009] rockchip-pcie f8000000.pcie: GPIO lookup for consumer ep
[    0.424018] rockchip-pcie f8000000.pcie: using device tree for GPIO lookup
[    0.424044] of_get_named_gpiod_flags: parsed 'ep-gpios' property of node '/pcie@f8000000[0]' - status (0)
[    0.424273] rockchip-pcie f8000000.pcie: Looking up vpcie3v3-supply from device tree
[    0.424283] rockchip-pcie f8000000.pcie: Looking up vpcie3v3-supply property in node /pcie@f8000000 failed
[    0.424296] rockchip-pcie f8000000.pcie: no vpcie3v3 regulator found
[    0.424869] rockchip-pcie f8000000.pcie: Looking up vpcie1v8-supply from device tree
[    0.424878] rockchip-pcie f8000000.pcie: Looking up vpcie1v8-supply property in node /pcie@f8000000 failed
[    0.424888] rockchip-pcie f8000000.pcie: no vpcie1v8 regulator found
[    0.425446] rockchip-pcie f8000000.pcie: Looking up vpcie0v9-supply from device tree
[    0.425455] rockchip-pcie f8000000.pcie: Looking up vpcie0v9-supply property in node /pcie@f8000000 failed
[    0.425464] rockchip-pcie f8000000.pcie: no vpcie0v9 regulator found
[    0.967880] rockchip-pcie f8000000.pcie: PCIe link training gen1 timeout!
[    0.968599] rockchip-pcie: probe of f8000000.pcie failed with error -110
[    1.077236] ehci-pci: EHCI PCI platform driver

[ 1.571033] vcc3v3_pcie: disabling

@hipboi, any info?


#3

There are two kinds of m.2 ssd, one is SATA protocol, the other is pcie protocol(NVME). ROCK960 only support m.2 NVME ssd, but there are some notes:

  • No hot plug is supported, you will have to plug in the device before power on

  • error below means the devices is not detected

    [ 0.967880] rockchip-pcie f8000000.pcie: PCIe link training gen1 timeout!


#4

Hello,
Any chance to add support for m.2 sata ?
Thanks in advance


#5

No. The hardware doesn’t support SATA protocal directly. You can use PCIE to sata to support SATA.


#6

Hi, Is rock960 support M.2 to PCIE switch?
Thanks!


#7

In theory, yes. We haven’t test it. Do you have any pcie switch recommend for us to test?


#8

I don’t know if the OP has better ideas but I wondered about the cheap ASM1184 boards available (to me in the UK) via eBay. ASM1184 is used on the Developerbox where it it critcial to the design and (thankfully) working very well.

Here’s an example: