[v2] ARM: dts: enable WLAN for Mecer Xtreme Mini S6
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Message ID 20200406135006.23759-1-justin.swartz@risingedge.co.za
State New
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Series
  • [v2] ARM: dts: enable WLAN for Mecer Xtreme Mini S6
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Commit Message

Justin Swartz April 6, 2020, 1:50 p.m. UTC
The Mecer Xtreme Mini S6 features a wireless module, based on a
Realtek 8723BS, which provides WLAN and Bluetooth connectivity via
SDIO and UART interfaces respectively.

Define a simple MMC power sequence that declares the GPIO pins
connected to the module's WLAN Disable and Bluetooth Disable pins
as active low reset signals, because both signals must be deasserted
for WLAN radio operation.

Configure the host's SDIO interface for High Speed mode with 1.8v
I/O signalling and IRQ detection over a 4-bit wide bus.

Signed-off-by: Justin Swartz <justin.swartz@risingedge.co.za>
---
Changes in v2:
  - Remove unused disable-wp and deprecated num-slots attributes
    from &sdio, as suggested by Johan Jonker.

 arch/arm/boot/dts/rk3229-xms6.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

Comments

Heiko Stübner May 18, 2020, 10:42 p.m. UTC | #1
On Mon, 6 Apr 2020 13:50:04 +0000, Justin Swartz wrote:
> The Mecer Xtreme Mini S6 features a wireless module, based on a
> Realtek 8723BS, which provides WLAN and Bluetooth connectivity via
> SDIO and UART interfaces respectively.
> 
> Define a simple MMC power sequence that declares the GPIO pins
> connected to the module's WLAN Disable and Bluetooth Disable pins
> as active low reset signals, because both signals must be deasserted
> for WLAN radio operation.
> 
> [...]

Applied, thanks!

[1/1] ARM: dts: enable WLAN for Mecer Xtreme Mini S6
      commit: 6067ec2c7ffacab4689ddfed3df74a467d112efe

Best regards,

Patch
diff mbox series

diff --git a/arch/arm/boot/dts/rk3229-xms6.dts b/arch/arm/boot/dts/rk3229-xms6.dts
index 679fc2b00..6890af0b7 100644
--- a/arch/arm/boot/dts/rk3229-xms6.dts
+++ b/arch/arm/boot/dts/rk3229-xms6.dts
@@ -39,6 +39,12 @@ 
 		};
 	};
 
+	sdio_pwrseq: sdio-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		reset-gpios = <&gpio2 26 GPIO_ACTIVE_LOW>,
+		              <&gpio2 29 GPIO_ACTIVE_LOW>;
+	};
+
 	vcc_host: vcc-host-regulator {
 		compatible = "regulator-fixed";
 		enable-active-high;
@@ -202,6 +208,16 @@ 
 	status = "okay";
 };
 
+&sdio {
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cap-sdio-irq;
+	mmc-pwrseq = <&sdio_pwrseq>;
+	non-removable;
+	vqmmc-supply = <&vccio_1v8>;
+	status = "okay";
+};
+
 &sdmmc {
 	cap-mmc-highspeed;
 	disable-wp;