Hi Manivannan,
On Fri, 31 May 2019 at 09:32, Manivannan Sadhasivam
<manivannan.sadhasivam@xxxxxxxxxx> wrote:
>
> Hi,
>
> On Thu, May 30, 2019 at 12:58:37PM +0000, Anand Moon wrote:
> > This patch add missing PCIe gpio and pinctrl for power (#PCIE_PWR)
> > also add PCIe gpio and pinctrl for reset (#PCIE_PERST_L).
> >
> > Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx>
> > ---
> > Tested on Rock960 Model A
> > ---
> > arch/arm64/boot/dts/rockchip/rk3399-rock960.dtsi | 16 ++++++++++++++--
> > 1 file changed, 14 insertions(+), 2 deletions(-)
> >
> > diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock960.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rock960.dtsi
> > index c7d48d41e184..f5bef6b0fe89 100644
> > --- a/arch/arm64/boot/dts/rockchip/rk3399-rock960.dtsi
> > +++ b/arch/arm64/boot/dts/rockchip/rk3399-rock960.dtsi
> > @@ -55,9 +55,10 @@
> >
> > vcc3v3_pcie: vcc3v3-pcie-regulator {
> > compatible = "regulator-fixed";
> > + gpio = <&gpio2 RK_PA2 GPIO_ACTIVE_HIGH>;
> > enable-active-high;
> > pinctrl-names = "default";
> > - pinctrl-0 = <&pcie_drv>;
> > + pinctrl-0 = <&pcie_drv &pcie_pwr>;
> > regulator-boot-on;
> > regulator-name = "vcc3v3_pcie";
> > regulator-min-microvolt = <3300000>;
> > @@ -381,9 +382,10 @@
> > };
> >
> > &pcie0 {
> > + ep-gpio = <&gpio2 RK_PD4 GPIO_ACTIVE_HIGH>;
> > num-lanes = <4>;
> > pinctrl-names = "default";
> > - pinctrl-0 = <&pcie_clkreqn_cpm>;
> > + pinctrl-0 = <&pcie_clkreqn_cpm &pcie_perst_l>;
> > vpcie3v3-supply = <&vcc3v3_pcie>;
> > status = "okay";
> > };
> > @@ -408,6 +410,16 @@
> > };
> > };
> >
> > + pcie {
> > + pcie_pwr: pcie-pwr {
> > + rockchip,pins = <2 RK_PA2 RK_FUNC_GPIO &pcfg_pull_none>;
> > + };
> > +
> > + pcie_perst_l:pcie-perst-l {
> > + rockchip,pins = <2 RK_PD4 RK_FUNC_GPIO &pcfg_pull_none>;
> > + };
>
> Which schematics did you refer? According to Rock960 v2.1 schematics [1], below
> is the pin mapping for PCI-E PWR and PERST:
>
> PCIE_PERST - GPIO2_A2
> PCIE_PWR - GPIO2_A5
>
Opps, I have referred the wrong schematics *RK3399_Rock960_V1.0.pdf*
may be old version.
Thanks for pointing out the correct schematics.
> Above mapping holds true for Rock960 version 1.1, 1.2 and 1.3. Also,
> rk3399-rock960.dtsi is common for both Rock960 and Ficus boards, so the board
> specific parts should go to rk3399-rock960.dts and rk3399-ficus.dts.
>
> Thanks,
> Mani
I have ROCK960-V 1.2 (Model A) for testing so. I will be sending patch
v2 the relevant
node update in rk3399-rock960.dts and rk3399-ficus.dts if below common
for both the boards.
PCIE_PERST - GPIO2_A2
PCIE_PWR - GPIO2_A5
>
> [1] https://dl.vamrs.com/products/rock960/docs/hw/rock960_sch_v12_20180314.pdf
Best Regards
-Anand
