diff options
| author | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> | 2016-08-26 23:23:13 +0300 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2016-09-05 14:32:33 +0200 |
| commit | 1d9a17dd3f98e3e8d5484224bc9e96f6cb30288b (patch) | |
| tree | 5bc352672bec84807427cfa62cb658ff66e5d739 /arch/arm/boot/dts | |
| parent | 5f45cec40402188a269dd56e9a1a569cc4849014 (diff) | |
| download | linux-1d9a17dd3f98e3e8d5484224bc9e96f6cb30288b.tar.bz2 | |
ARM: dts: wheat: add Ethernet support
R8A7792 SoC doesn't have the EtherMAC core, so SMSC LAN89218 Ethernet
chip was used instead on the Wheat debug board; this chip is compatible
with SMSC LAN9115 for which there's a (device tree aware) driver.
Describe the chip in the Wheat device tree unconditionally (the driver
should fail the probe if the debug board isn't connected); enable DHCP and
NFS root in the command line for the kernel boot...
Based on the original (and large) patch by Vladimir Barinov
<vladimir.barinov@cogentembedded.com>.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'arch/arm/boot/dts')
| -rw-r--r-- | arch/arm/boot/dts/r8a7792-wheat.dts | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/r8a7792-wheat.dts b/arch/arm/boot/dts/r8a7792-wheat.dts index 22ae14ffc917..e214d707f81d 100644 --- a/arch/arm/boot/dts/r8a7792-wheat.dts +++ b/arch/arm/boot/dts/r8a7792-wheat.dts @@ -21,7 +21,7 @@ }; chosen { - bootargs = "ignore_loglevel"; + bootargs = "ignore_loglevel rw root=/dev/nfs ip=dhcp"; stdout-path = "serial0:115200n8"; }; @@ -29,6 +29,31 @@ device_type = "memory"; reg = <0 0x40000000 0 0x40000000>; }; + + d3_3v: regulator-3v3 { + compatible = "regulator-fixed"; + regulator-name = "D3.3V"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + regulator-always-on; + }; + + ethernet@18000000 { + compatible = "smsc,lan89218", "smsc,lan9115"; + reg = <0 0x18000000 0 0x100>; + phy-mode = "mii"; + interrupt-parent = <&irqc>; + interrupts = <0 IRQ_TYPE_EDGE_FALLING>; + smsc,irq-push-pull; + smsc,save-mac-address; + reg-io-width = <4>; + vddvario-supply = <&d3_3v>; + vdd33a-supply = <&d3_3v>; + + pinctrl-0 = <&lan89218_pins>; + pinctrl-names = "default"; + }; }; &extal_clk { @@ -40,6 +65,17 @@ groups = "scif0_data"; function = "scif0"; }; + + lan89218_pins: lan89218 { + intc { + groups = "intc_irq0"; + function = "intc"; + }; + lbsc { + groups = "lbsc_ex_cs0"; + function = "lbsc"; + }; + }; }; &scif0 { |