Thread (42 messages) 42 messages, 5 authors, 2018-07-27
STALE2876d

[PATCH v2 17/18] arm64: dts: allwinner: a64: NanoPi-A64: Add Wifi/Bluetooth chip

From: andre.przywara@arm.com (Andre Przywara)
Date: 2018-07-26 09:05:10

Hi,

On 26/07/18 08:48, Chen-Yu Tsai wrote:
On Thu, Jul 26, 2018 at 8:35 AM, Andre Przywara [off-list ref] wrote:
quoted
The NanoPi-A64 has an on-board WiFi/Bluetooth combo chip, connected
The NanoPi A64 uses the RTL8189, which does _not_ have Bluetooth.
Something is seriously wrong here.
Ah, interesting. You are right that the RTL8189 does not have Bluetooth.
I was just looking at the schematic, which, although naming the
RTL8189ETV there, shows UART1 and PCM connections. The pin numbers are
definitely wrong, it smells like someone copied a RTL8723BS pinout here ;-)

So thanks for the heads up, I will drop the BT/UART part.

Cheers,
Andre.
quoted
to the usual MMC1 and UART1. The AXP power line is the always-on
VDD_SYS_3.3V, but it uses pin L2 to enable the regulator.
As the actual WiFi driver is not in mainline Linux, it doesn't have a
compatible string, so we omit this from the node.

Add the respective nodes to the DT to make it usable.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 .../boot/dts/allwinner/sun50i-a64-nanopi-a64.dts   | 31 ++++++++++++++++++++++
 1 file changed, 31 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-nanopi-a64.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-nanopi-a64.dts
index bd35a093e6cd..705e0b23589e 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-nanopi-a64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-nanopi-a64.dts
@@ -53,11 +53,17 @@
        aliases {
                ethernet0 = &emac;
                serial0 = &uart0;
+               serial1 = &uart1;
        };

        chosen {
                stdout-path = "serial0:115200n8";
        };
+
+       wifi_pwrseq: wifi_pwrseq {
+               compatible = "mmc-pwrseq-simple";
+               reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
+       };
 };

 &ehci0 {
@@ -105,6 +111,24 @@
        status = "okay";
 };

+&mmc1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&mmc1_pins>;
+       vmmc-supply = <&reg_dcdc1>;
+       vqmmc-supply = <&reg_dldo4>;
+       mmc-pwrseq = <&wifi_pwrseq>;
+       bus-width = <4>;
+       non-removable;
+       status = "okay";
+
+       rtl8189etv: wifi at 1 {
+               reg = <1>;
+               interrupt-parent = <&r_pio>;
+               interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* PL3 */
+               interrupt-names = "host-wake";
+       };
+};
+
 &ohci0 {
        status = "okay";
 };
@@ -222,6 +246,13 @@
        status = "okay";
 };

+/* Connected to the Bluetooth UART, with hardware handshake pins */
+&uart1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
+       status = "okay";
+};
+
 &usbphy {
        status = "okay";
 };
--
2.14.4
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