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@xxxxxxxxxx>
---
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@xxxxxxxxxx>
+ *
+ * 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
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