| Message ID | 20181118173424.4807-1-marek.vasut+renesas@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm64: dts: renesas: r8a77990: ebisu: Add and enable CAN, FD device nodes | expand |
On Sun, Nov 18, 2018 at 06:34:24PM +0100, Marek Vasut wrote: > This patch adds CAN0,1 and CANFD device nodes for the r8a77990 SoC > and enables CANFD connected to CN10 on the E3 Ebisu board using the > R8A77990 SoC. > > Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> > Cc: Geert Uytterhoeven <geert+renesas@glider.be> > Cc: Marc Kleine-Budde <mkl@pengutronix.de> > Cc: Rob Herring <robh@kernel.org> > Cc: Simon Horman <horms+renesas@verge.net.au> > Cc: Wolfram Sang <wsa+renesas@sang-engineering.com> > Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-renesas-soc@vger.kernel.org Same here, what was tested?
On 11/19/2018 12:03 AM, Wolfram Sang wrote: > On Sun, Nov 18, 2018 at 06:34:24PM +0100, Marek Vasut wrote: >> This patch adds CAN0,1 and CANFD device nodes for the r8a77990 SoC >> and enables CANFD connected to CN10 on the E3 Ebisu board using the >> R8A77990 SoC. >> >> Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> >> Cc: Geert Uytterhoeven <geert+renesas@glider.be> >> Cc: Marc Kleine-Budde <mkl@pengutronix.de> >> Cc: Rob Herring <robh@kernel.org> >> Cc: Simon Horman <horms+renesas@verge.net.au> >> Cc: Wolfram Sang <wsa+renesas@sang-engineering.com> >> Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> >> Cc: linux-arm-kernel@lists.infradead.org >> Cc: linux-renesas-soc@vger.kernel.org > > Same here, what was tested? I connected the CN10 to Peak CANFD, brought both interfaces up at 125kBd/250kBd for FD $ ip link set canX up type can bitrate 125000 dbitrate 250000 fd on And ran on either side: $ cangen -m canX and $ candump -t d -dex canX This should give a good mix of CAN messages.
> > Same here, what was tested? > > I connected the CN10 to Peak CANFD, brought both interfaces up at > 125kBd/250kBd for FD > $ ip link set canX up type can bitrate 125000 dbitrate 250000 fd on > > And ran on either side: > $ cangen -m canX > and > $ candump -t d -dex canX > This should give a good mix of CAN messages. Perfect, thanks!
On Mon, Nov 19, 2018 at 11:55:08AM +0100, Wolfram Sang wrote: > > > > Same here, what was tested? > > > > I connected the CN10 to Peak CANFD, brought both interfaces up at > > 125kBd/250kBd for FD > > $ ip link set canX up type can bitrate 125000 dbitrate 250000 fd on > > > > And ran on either side: > > $ cangen -m canX > > and > > $ candump -t d -dex canX > > This should give a good mix of CAN messages. > > Perfect, thanks! Thanks, applied for v4.21.
diff --git a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts index 2ef9067616ee..e282ef500001 100644 --- a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts +++ b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts @@ -260,6 +260,16 @@ }; }; +&canfd { + pinctrl-0 = <&canfd0_pins>; + pinctrl-names = "default"; + status = "okay"; + + channel0 { + status = "okay"; + }; +}; + &csi40 { status = "okay"; @@ -460,6 +470,11 @@ }; }; + canfd0_pins: canfd0 { + groups = "canfd0_data"; + function = "canfd0"; + }; + du_pins: du { groups = "du_rgb888", "du_sync", "du_disp", "du_clk_out_0"; function = "du"; diff --git a/arch/arm64/boot/dts/renesas/r8a77990.dtsi b/arch/arm64/boot/dts/renesas/r8a77990.dtsi index 46868dacbeef..b0398e05e8ed 100644 --- a/arch/arm64/boot/dts/renesas/r8a77990.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a77990.dtsi @@ -48,6 +48,13 @@ clock-frequency = <0>; }; + /* External CAN clock - to be overridden by boards that provide it */ + can_clk: can { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <0>; + }; + cpus { #address-cells = <1>; #size-cells = <0>; @@ -773,6 +780,63 @@ status = "disabled"; }; + can0: can@e6c30000 { + compatible = "renesas,can-r8a77990", + "renesas,rcar-gen3-can"; + reg = <0 0xe6c30000 0 0x1000>; + interrupts = <GIC_SPI 186 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 916>, + <&cpg CPG_CORE R8A77990_CLK_CANFD>, + <&can_clk>; + clock-names = "clkp1", "clkp2", "can_clk"; + assigned-clocks = <&cpg CPG_CORE R8A77990_CLK_CANFD>; + assigned-clock-rates = <40000000>; + power-domains = <&sysc R8A77990_PD_ALWAYS_ON>; + resets = <&cpg 916>; + status = "disabled"; + }; + + can1: can@e6c38000 { + compatible = "renesas,can-r8a77990", + "renesas,rcar-gen3-can"; + reg = <0 0xe6c38000 0 0x1000>; + interrupts = <GIC_SPI 187 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 915>, + <&cpg CPG_CORE R8A77990_CLK_CANFD>, + <&can_clk>; + clock-names = "clkp1", "clkp2", "can_clk"; + assigned-clocks = <&cpg CPG_CORE R8A77990_CLK_CANFD>; + assigned-clock-rates = <40000000>; + power-domains = <&sysc R8A77990_PD_ALWAYS_ON>; + resets = <&cpg 915>; + status = "disabled"; + }; + + canfd: can@e66c0000 { + compatible = "renesas,r8a77990-canfd", + "renesas,rcar-gen3-canfd"; + reg = <0 0xe66c0000 0 0x8000>; + interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 914>, + <&cpg CPG_CORE R8A77990_CLK_CANFD>, + <&can_clk>; + clock-names = "fck", "canfd", "can_clk"; + assigned-clocks = <&cpg CPG_CORE R8A77990_CLK_CANFD>; + assigned-clock-rates = <40000000>; + power-domains = <&sysc R8A77990_PD_ALWAYS_ON>; + resets = <&cpg 914>; + status = "disabled"; + + channel0 { + status = "disabled"; + }; + + channel1 { + status = "disabled"; + }; + }; + pwm0: pwm@e6e30000 { compatible = "renesas,pwm-r8a77990", "renesas,pwm-rcar"; reg = <0 0xe6e30000 0 0x8>;
This patch adds CAN0,1 and CANFD device nodes for the r8a77990 SoC and enables CANFD connected to CN10 on the E3 Ebisu board using the R8A77990 SoC. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Marc Kleine-Budde <mkl@pengutronix.de> Cc: Rob Herring <robh@kernel.org> Cc: Simon Horman <horms+renesas@verge.net.au> Cc: Wolfram Sang <wsa+renesas@sang-engineering.com> Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-renesas-soc@vger.kernel.org --- .../arm64/boot/dts/renesas/r8a77990-ebisu.dts | 15 +++++ arch/arm64/boot/dts/renesas/r8a77990.dtsi | 64 +++++++++++++++++++ 2 files changed, 79 insertions(+)