[PATCH v6 3/3] PCI: imx6: Add support for i.MX6 PCIe controller

[Shawn Guo]

On Tue, Nov 26, 2013 at 06:04:16AM +0000, Richard Zhu wrote:
> [Richard] Based on the tag " pci-v3.13-fixes-1" on pci git-repos, imx6 pcie had been tested on imx6 sabresd board.
> 
> The pcie works after enable pcie support in imx6qdl-sabresd.dtsi file.

Great, thanks, Richard.

Shawn

> 
> Patch:
> Author: Richard Zhu <r65037 at freescale.com>
> Date:   Tue Nov 26 13:29:24 2013 +0800
> 
>     pcie: imx6: enable pcie on imx6qdl sabresd board
> 
>     Add pcie device tree node into imx6qdl dts file,
>     enable pcie on imx6qdl sabresd board
> 
>     Signed-off-by: Richard Zhu <r65037 at freescale.com>
> 
> diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
> index e75e11b..b821f87 100644
> --- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
> @@ -212,6 +212,12 @@
>         };
>  };
> 
> +&pcie {
> +       power-on-gpio = <&gpio3 19 0>;
> +       reset-gpio = <&gpio7 12 0>;
> +       status = "okay";
> +};
> +
>  &pwm1 {
>         pinctrl-names = "default";
>         pinctrl-0 = <&pinctrl_pwm0_1>;
> 
> LOGs when e1000e nic is used:
> uname -a
> Linux freescale 3.12.0+ #49 SMP Tue Nov 26 13:26:03 CST 2013 armv7l GNU/Linux
> root at freescale ~$ lspci -v
> 00:00.0 PCI bridge: Unknown device 16c3:abcd (rev 01) (prog-if 00 [Normal decode])
>         Flags: bus master, fast devsel, latency 0
>         Memory at 01000000 (32-bit, non-prefetchable) [size=1M]
>         Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
>         I/O behind bridge: 00001000-00001fff
>         Memory behind bridge: 01100000-011fffff
>         Prefetchable memory behind bridge: 01200000-012fffff
>         [virtual] Expansion ROM at 01300000 [disabled] [size=64K]
>         Capabilities: [40] Power Management version 3
>         Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ Queue=0/0 Enable-
>         Capabilities: [70] Express Root Port (Slot-) IRQ 0
>         Capabilities: [100] Advanced Error Reporting
>         Capabilities: [140] Virtual Channel
> 
> 01:00.0 Ethernet controller: Intel Corporation Unknown device 10d3
>         Subsystem: Intel Corporation Unknown device a01f
>         Flags: bus master, fast devsel, latency 0, IRQ 155
>         Memory at 01180000 (32-bit, non-prefetchable) [size=128K]
>         Memory at 01100000 (32-bit, non-prefetchable) [size=512K]
>         I/O ports at 1000 [disabled] [size=32]
>         Memory at 011a0000 (32-bit, non-prefetchable) [size=16K]
>         [virtual] Expansion ROM at 01200000 [disabled] [size=256K]
>         Capabilities: [c8] Power Management version 2
>         Capabilities: [d0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
>         Capabilities: [e0] Express Endpoint IRQ 0
>         Capabilities: [a0] MSI-X: Enable- Mask- TabSize=5
>         Capabilities: [100] Advanced Error Reporting
>         Capabilities: [140] Device Serial Number 8b-18-3a-ff-ff-21-1b-00
> > >
> <...>
> > 
> > Best Regards
> > Richard Zhu
> 
> [Richard] 
> Best Regards
> Richard Zhu
> 
>