[PATCH] ARM: dts: sun8i: Add new sun8i-a33-q8-tzx-723q4.dts file

[PATCH] ARM: dts: sun8i: Add new sun8i-a33-q8-tzx-723q4.dts file

[Hans de Goede]

The TZX 723Q4 PCB is a pcb used in some q8 case 7" A33 tablets.
This PCB has an interesting issue, its micro sdcards slot will not work
unless the drive-strength on the mmc pins is lowered from 30mA to 10mA.

Therefor this commit introduces a separate dts file for this board.

Signed-off-by: Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
 arch/arm/boot/dts/Makefile                   |  1 +
 arch/arm/boot/dts/sun8i-a33-q8-tzx-723q4.dts | 70 ++++++++++++++++++++++++++++
 2 files changed, 71 insertions(+)
 create mode 100644 arch/arm/boot/dts/sun8i-a33-q8-tzx-723q4.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 1dbfd1b..1034922 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -613,6 +613,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
 	sun8i-a33-et-q8-v1.6.dtb \
 	sun8i-a33-ga10h-v1.1.dtb \
 	sun8i-a33-ippo-q8h-v1.2.dtb \
+	sun8i-a33-q8-tzx-723q4.dtb \
 	sun8i-a33-sinlinx-sina33.dtb
 dtb-$(CONFIG_MACH_SUN9I) += \
 	sun9i-a80-optimus.dtb \
diff --git a/arch/arm/boot/dts/sun8i-a33-q8-tzx-723q4.dts b/arch/arm/boot/dts/sun8i-a33-q8-tzx-723q4.dts
new file mode 100644
index 0000000..04f396a
--- /dev/null
+++ b/arch/arm/boot/dts/sun8i-a33-q8-tzx-723q4.dts
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2015 Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This file is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "sun8i-a33.dtsi"
+#include "sun8i-q8-common.dtsi"
+
+/ {
+	model = "Q8 TZX 723Q4 Quad Core Tablet";
+	compatible = "tzx,q8-tzx-723q4", "allwinner,sun8i-a33";
+};
+
+/* The TZX 723Q[a]4 PCB mmc only works properly with a lower drive-strenght */
+&mmc0_pins_a {
+	allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+};
+
+/*
+ * FIXME for now we only support host mode and rely on u-boot to have
+ * turned on Vbus which is controlled by the axp223 pmic on the board.
+ *
+ * Once we have axp223 support we should switch to fully supporting otg.
+ */
+&usb_otg {
+	dr_mode = "host";
+	status = "okay";
+};
+
+&usbphy {
+	status = "okay";
+};
-- 
2.4.3

Re: [PATCH] ARM: dts: sun8i: Add new sun8i-a33-q8-tzx-723q4.dts file

[Maxime Ripard]

[-- Attachment #1: Type: text/plain, Size: 567 bytes --]

On Thu, Sep 10, 2015 at 03:00:35PM +0200, Hans de Goede wrote:
> The TZX 723Q4 PCB is a pcb used in some q8 case 7" A33 tablets.
> This PCB has an interesting issue, its micro sdcards slot will not work
> unless the drive-strength on the mmc pins is lowered from 30mA to 10mA.
> 
> Therefor this commit introduces a separate dts file for this board.
> 
> Signed-off-by: Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>

Queued, thanks!

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com