Testing this series with a Jetson TX1 + r8168e PCI-E card, it /almost/
works.. Relevant parts of bootlog:
[ 1.876191] tegra-pcie 1003000.pcie-controller: 4x1, 1x1 configuration
[ 1.884200] tegra-pcie 1003000.pcie-controller: probing port 0, using
4 lanes
[ 1.893368] tegra-pcie 1003000.pcie-controller: Slot present pin
change, signature: 00000008
[ 1.948049] tegra-pcie 1003000.pcie-controller: probing port 1, using
1 lanes
[ 1.957209] tegra-pcie 1003000.pcie-controller: Slot present pin
change, signature: 00000000
[ 2.367748] tegra-pcie 1003000.pcie-controller: link 1 down, retrying
[ 2.778307] tegra-pcie 1003000.pcie-controller: link 1 down, retrying
[ 3.188888] tegra-pcie 1003000.pcie-controller: link 1 down, retrying
[ 3.197344] tegra-pcie 1003000.pcie-controller: link 1 down, ignoring
[ 3.203931] tegra-pcie 1003000.pcie-controller: PCI host bridge to
bus 0000:00
[ 3.211160] pci_bus 0000:00: root bus resource [io 0x0000-0xffff]
[ 3.217343] pci_bus 0000:00: root bus resource [mem
0x13000000-0x1fffffff]
[ 3.224218] pci_bus 0000:00: root bus resource [mem
0x20000000-0x3fffffff pref]
[ 3.231525] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 3.237380] pci 0000:00:01.0: bridge configuration invalid ([bus
00-00]), reconfiguring
[ 3.254499] pci 0000:00:01.0: BAR 14: assigned [mem
0x13000000-0x130fffff]
[ 3.261389] pci 0000:00:01.0: BAR 15: assigned [mem
0x20000000-0x200fffff 64bit pref]
[ 3.269220] pci 0000:00:01.0: BAR 13: assigned [io 0x1000-0x1fff]
[ 3.275412] pci 0000:01:00.0: BAR 4: assigned [mem
0x20000000-0x20003fff 64bit pref]
[ 3.283172] pci 0000:01:00.0: BAR 2: assigned [mem
0x13000000-0x13000fff 64bit]
[ 3.290498] pci 0000:01:00.0: BAR 0: assigned [io 0x1000-0x10ff]
[ 3.296596] pci 0000:00:01.0: PCI bridge to [bus 01]
[ 3.301568] pci 0000:00:01.0: bridge window [io 0x1000-0x1fff]
[ 3.307666] pci 0000:00:01.0: bridge window [mem 0x13000000-0x130fffff]
[ 3.314454] pci 0000:00:01.0: bridge window [mem
0x20000000-0x200fffff 64bit pref]
[ 3.322213] pci 0000:00:01.0: nv_msi_ht_cap_quirk didn't locate host
bridge
[ 3.329257] pcieport 0000:00:01.0: enabling device (0000 -> 0003)
[ 3.335572] pcieport 0000:00:01.0: Signaling PME through PCIe PME
interrupt
[ 3.342537] pci 0000:01:00.0: Signaling PME through PCIe PME interrupt
[ 3.349256] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[ 3.354858] r8169 0000:01:00.0: enabling device (0000 -> 0003)
[ 3.361460] r8169 0000:01:00.0 eth0: RTL8168e/8111e at
0xffff000008eae000, 98:de:d0:04:25:14, XID 0c200000 IRQ 348
[ 3.371812] r8169 0000:01:00.0 eth0: jumbo features [frames: 9200
bytes, tx checksumming: ko]
then
[ 3.706240] tegra-mc 70019000.memory-controller: afiw: write
@0x000000007a484000: EMEM address decode error (EMEM decode error)
[ 3.717747] r8169 0000:01:00.0 eth0: link down
The card is alive though, the transfer LED is blinking according to
incoming traffic, I assume; we can also see that the driver is able to
access the hw to some extent. The kernel version is 4.9rc7 with just
this series on top. The same board/card also works in U-boot.
- Mikko
On 11/25/2016 12:57 PM, Thierry Reding wrote:
From: Thierry Reding <treding@xxxxxxxxxx>
Enable the x4 PCIe and M.2 Key E slots on Jetson TX1. The Key E slot is
currently untested due to lack of hardware.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts | 26 ++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts b/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
index 983775e637a4..4c1ea7a08d43 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
@@ -7,6 +7,32 @@
model = "NVIDIA Jetson TX1 Developer Kit";
compatible = "nvidia,p2371-2180", "nvidia,tegra210";
+ pcie-controller@01003000 {
+ status = "okay";
+
+ avdd-pll-uerefe-supply = <&avdd_1v05_pll>;
+ hvddio-pex-supply = <&vdd_1v8>;
+ dvddio-pex-supply = <&vdd_pex_1v05>;
+ dvdd-pex-pll-supply = <&vdd_pex_1v05>;
+ hvdd-pex-pll-e-supply = <&vdd_1v8>;
+ vddio-pex-ctl-supply = <&vdd_1v8>;
+
+ pci@1,0 {
+ phys = <&{/padctl@7009f000/pads/pcie/lanes/pcie-0}>,
+ <&{/padctl@7009f000/pads/pcie/lanes/pcie-1}>,
+ <&{/padctl@7009f000/pads/pcie/lanes/pcie-2}>,
+ <&{/padctl@7009f000/pads/pcie/lanes/pcie-3}>;
+ phy-names = "pcie-0", "pcie-1", "pcie-2", "pcie-3";
+ status = "okay";
+ };
+
+ pci@2,0 {
+ phys = <&{/padctl@7009f000/pads/pcie/lanes/pcie-4}>;
+ phy-names = "pcie-0";
+ status = "okay";
+ };
+ };
+
host1x@50000000 {
dsi@54300000 {
status = "okay";
--
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