sunxi: Add the TBS A711 tablet

The TBS Tablet sports an LVDS display, an eMMC, an external SD, USB devices
and USB OTG.

Reviewed-by: Jagan Teki <jagan@openedev.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/dts/Makefile

@@ -316,7 +316,8 @@ dtb-$(CONFIG_MACH_SUN8I_A33) += \
 dtb-$(CONFIG_MACH_SUN8I_A83T) += \
 	sun8i-a83t-allwinner-h8homlet-v2.dtb \
 	sun8i-a83t-bananapi-m3.dtb \
-	sun8i-a83t-cubietruck-plus.dtb
+	sun8i-a83t-cubietruck-plus.dtb \
+	sun8i-a83t-tbs-a711.dts
 dtb-$(CONFIG_MACH_SUN8I_H3) += \
 	sun8i-h2-plus-orangepi-zero.dtb \
 	sun8i-h3-bananapi-m2-plus.dtb \

arch/arm/dts/sun8i-a83t-tbs-a711.dts

@@ -0,0 +1,76 @@
+/*
+ * Copyright 2017 Ondřej Jirman
+ * Ondřej Jirman <megous@megous.com>
+ *
+ * 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-a83t.dtsi"
+
+/ {
+	model = "TBS A711 Tablet";
+	compatible = "tbs-biometrics,a711", "allwinner,sun8i-a83t";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&ehci0 {
+	status = "okay";
+};
+
+&ohci0 {
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins_b>;
+	status = "okay";
+};
+
+&usb_otg {
+	status = "okay";
+};

configs/tbs_a711_defconfig

@@ -0,0 +1,23 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_MACH_SUN8I_A83T=y
+CONFIG_DRAM_TYPE=7
+CONFIG_DRAM_CLK=648
+CONFIG_DRAM_ZQ=15355
+CONFIG_DRAM_ODT_EN=y
+CONFIG_MMC_SUNXI_SLOT_EXTRA=2
+CONFIG_USB0_VBUS_PIN="AXP0-VBUS-ENABLE"
+CONFIG_USB0_VBUS_DET="AXP0-VBUS-DETECT"
+CONFIG_USB0_ID_DET="PH11"
+CONFIG_AXP_GPIO=y
+CONFIG_DEFAULT_DEVICE_TREE="sun8i-a83t-tbs-a711"
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_SPL=y
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_FPGA is not set
+# CONFIG_SPL_DOS_PARTITION is not set
+# CONFIG_SPL_ISO_PARTITION is not set
+# CONFIG_SPL_EFI_PARTITION is not set
+CONFIG_AXP_DCDC5_VOLT=1200
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_MUSB_GADGET=y