| Message ID | 20190206033239.3619-1-wens@csie.org |
|---|---|
| Headers | show |
| Series | ARM: sun9i: a80: Enable GMAC | expand |
On Wed, Feb 06, 2019 at 11:32:30AM +0800, Chen-Yu Tsai wrote: > Hi everyone, > > On the Allwinner A80, the PIO pin controller includes configuration > registers to set the I/O voltage. These must match the actual voltage > provided externally. A mismatch results in signals not being passed > through. > > With the new PIO pin-bank regulator supply support in place, we can > tack on support for setting up these registers. > > This in turn allows us to enable the GMAC, which runs at a reduced > 2.5V for RGMII, instead of the standard 3.0V or 3.3V. > > Please have a look. Applied the patches 2-9, thanks! Maxime
Hi everyone, On the Allwinner A80, the PIO pin controller includes configuration registers to set the I/O voltage. These must match the actual voltage provided externally. A mismatch results in signals not being passed through. With the new PIO pin-bank regulator supply support in place, we can tack on support for setting up these registers. This in turn allows us to enable the GMAC, which runs at a reduced 2.5V for RGMII, instead of the standard 3.0V or 3.3V. Please have a look. Regards ChenYu Chen-Yu Tsai (9): pinctrl: sunxi: Support I/O bias voltage setting on A80 ARM: dts: sun9i: a80-optimus: Add node for AXP809's unused dc1sw regulator ARM: dts: sun9i: a80-optimus: Add GPIO pin-bank regulator supplies ARM: dts: sun9i: cubieboard4: Add GPIO pin-bank regulator supplies ARM: dts: sun9i: Add GMAC clock node ARM: dts: sun9i: Add A80 GMAC gigabit ethernet controller node ARM: dts: sun9i: Add A80 GMAC RGMII pinmux setting ARM: dts: sun9i: a80-optimus: Enable GMAC ARM: dts: sun9i: cubieboard4: Enable GMAC arch/arm/boot/dts/sun9i-a80-cubieboard4.dts | 44 +++++++++++++- arch/arm/boot/dts/sun9i-a80-optimus.dts | 44 +++++++++++++- arch/arm/boot/dts/sun9i-a80.dtsi | 65 +++++++++++++++++++++ drivers/pinctrl/sunxi/pinctrl-sun9i-a80-r.c | 1 + drivers/pinctrl/sunxi/pinctrl-sun9i-a80.c | 1 + drivers/pinctrl/sunxi/pinctrl-sunxi.c | 41 +++++++++++++ drivers/pinctrl/sunxi/pinctrl-sunxi.h | 12 ++++ 7 files changed, 202 insertions(+), 6 deletions(-)