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AR-1 - Adding support category for distributions AR-4 - Remove Allwinner legacy AR-5 - Drop Udoo family and move Udoo board into newly created imx6 family AR-9 - Rename sunxi-next to sunxi-legacy AR-10 - Rename sunxi-dev to sunxi-current AR-11 - Adding Radxa Rockpi S support AR-13 - Rename rockchip64-default to rockchip64-legacy AR-14 - Add rockchip64-current as mainline source AR-15 - Drop Rockchip 4.19.y NEXT, current become 5.3.y AR-16 - Rename RK3399 default to legacy AR-17 - Rename Odroid XU4 next and default to legacy 4.14.y, add DEV 5.4.y AR-18 - Add Odroid N2 current mainline AR-19 - Move Odroid C1 to meson family AR-20 - Rename mvebu64-default to mvebu64-legacy AR-21 - Rename mvebu-default to mvebu-legacy AR-22 - Rename mvebu-next to mvebu-current AR-23 - Drop meson64 default and next, current becomes former DEV 5.3.y AR-24 - Drop cubox family and move Cubox/Hummingboard boards under imx6 AR-26 - Adjust motd AR-27 - Enabling distribution release status AR-28 - Added new GCC compilers AR-29 - Implementing Ubuntu Eoan AR-30 - Add desktop packages per board or family AR-31 - Remove (Ubuntu/Debian) distribution name from image filename AR-32 - Move arch configs from configuration.sh to separate arm64 and armhf config files AR-33 - Revision numbers for beta builds changed to day_in_the_year AR-34 - Patches support linked patches AR-35 - Break meson64 family into gxbb and gxl AR-36 - Add Nanopineo2 Black AR-38 - Upgrade option from old branches to new one via armbian-config AR-41 - Show full timezone info AR-43 - Merge Odroid N2 to meson64 AR-44 - Enable FORCE_BOOTSCRIPT_UPDATE for all builds
62 lines
1.8 KiB
Diff
62 lines
1.8 KiB
Diff
From 2c2e60256f2cbb2fce50a6317f85b1500efd1a6c Mon Sep 17 00:00:00 2001
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From: "Miouyouyou (Myy)" <myy@miouyouyou.fr>
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Date: Mon, 5 Nov 2018 22:03:26 +0100
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Subject: [PATCH] ARM: DTS: rk3288-tinker: Setup the Bluetooth UART pins
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The most essential being the RTS pin, which is clearly needed to
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upload the initial configuration into the Realtek Bluetooth
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chip, and make the Bluetooth chip work.
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Now, the Bluetooth chip also needs 3 other GPIOS to be enabled.
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I'll see how I do that through the DTS file in a near future.
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The 3 GPIOS being :
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Bluetooth Reset : <&gpio4 29 GPIO_ACTIVE_HIGH>
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Bluetooth Wake : <&gpio4 26 GPIO_ACTIVE_HIGH>
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Bluetooth Wake_Host_IRQ : <&gpio4 31 GPIO_ACTIVE_HIGH>
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These are currently setup manually, through scripts. But it seems that
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GPIO handling through /sys entries might not be possible in the long
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term, the replacement being libgpio.
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Anyway, if you're interesting in enabling the Bluetooth GPIO by hand,
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here are the commands :
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cd /sys/class/gpio &&
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echo 146 > export &&
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echo 149 > export &&
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echo 151 > export &&
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echo high > gpio146/direction &&
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echo high > gpio149/direction &&
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echo high > gpio151/direction
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Resetting the chip is done like this :
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echo "Resetting the Bluetooth chip"
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cd /sys/class/gpio/gpio149 &&
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echo 0 > value &&
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sleep 1 &&
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echo 1 > value &&
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sleep 1
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Signed-off-by: Miouyouyou (Myy) <myy@miouyouyou.fr>
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---
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arch/arm/boot/dts/rk3288-tinker.dts | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/arch/arm/boot/dts/rk3288-tinker.dts b/arch/arm/boot/dts/rk3288-tinker.dts
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index d4df13bed..b92e59c1e 100644
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--- a/arch/arm/boot/dts/rk3288-tinker.dts
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+++ b/arch/arm/boot/dts/rk3288-tinker.dts
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@@ -73,3 +73,9 @@
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status = "okay";
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supports-sdio;
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};
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+
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+&uart0 {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&uart0_xfer>, <&uart0_cts>, <&uart0_rts>;
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+};
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+
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--
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2.16.4
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