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[RFC,14/15] ARM: dts: sun9i: a80-optimus: Enable hardware reset and HS-DDR for eMMC

Message ID 1453354002-28366-15-git-send-email-wens@csie.org (mailing list archive)
State New, archived
Headers show

Commit Message

Chen-Yu Tsai Jan. 21, 2016, 5:26 a.m. UTC 
mmc2 has a special pin for eMMC hardware reset, which is controllable
from the controller. Add the "mmc-cap-hw-reset" property to denote that
this controller supports this function, and the pins are actually used.

Also increase the signal drive strength for mmc2 pins, for HS-DDR mode
support.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 arch/arm/boot/dts/sun9i-a80-optimus.dts | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Maxime Ripard Jan. 24, 2016, 4:59 p.m. UTC | #1 
On Thu, Jan 21, 2016 at 01:26:41PM +0800, Chen-Yu Tsai wrote:
> mmc2 has a special pin for eMMC hardware reset, which is controllable
> from the controller. Add the "mmc-cap-hw-reset" property to denote that
> this controller supports this function, and the pins are actually used.
> 
> Also increase the signal drive strength for mmc2 pins, for HS-DDR mode
> support.
> 
> Signed-off-by: Chen-Yu Tsai <wens@csie.org>

Applied, thanks!
Maxime
diff mbox

Patch

diff --git a/arch/arm/boot/dts/sun9i-a80-optimus.dts b/arch/arm/boot/dts/sun9i-a80-optimus.dts
index c0060e4f7379..958160e40fd0 100644
--- a/arch/arm/boot/dts/sun9i-a80-optimus.dts
+++ b/arch/arm/boot/dts/sun9i-a80-optimus.dts
@@ -174,9 +174,15 @@ 
 	vmmc-supply = <&reg_vcc3v0>;
 	bus-width = <8>;
 	non-removable;
+	cap-mmc-hw-reset;
 	status = "okay";
 };
 
+&mmc2_8bit_pins {
+	/* Increase drive strength for DDR modes */
+	allwinner,drive = <SUN4I_PINCTRL_40_MA>;
+};
+
 &reg_usb1_vbus {
 	pinctrl-0 = <&usb1_vbus_pin_optimus>;
 	gpio = <&pio 7 4 GPIO_ACTIVE_HIGH>; /* PH4 */