Banana Pi M2 Zero is a board by Sinovoip with Allwinner H2+ SoC, 16-bit
512MiB DDR3 memory, a MicroSD slot, two MicroUSB ports (one OTG and one
powering-only) and a miniHDMI port.
DTS file is from Linux kernel with removing some nodes that are not needed
in u-boot or not merged into u-boot yet.
Signed-off-by: Icenowy Zheng <icen...@aosc.io>
Signed-off-by: Jun Nie <jun....@linaro.org>
---
arch/arm/dts/Makefile | 1 +
arch/arm/dts/sun8i-h2-plus-bananapi-m2-zero.dts | 68 +++++++++++++++++++++++++
board/sunxi/MAINTAINERS | 5 ++
configs/bananapi_m2_zero_defconfig | 15 ++++++
4 files changed, 89 insertions(+)
create mode 100644 arch/arm/dts/sun8i-h2-plus-bananapi-m2-zero.dts
create mode 100644 configs/bananapi_m2_zero_defconfig
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 20a4c37..8d6fab2 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -338,6 +338,7 @@ dtb-$(CONFIG_MACH_SUN8I_A83T) += \
sun8i-a83t-cubietruck-plus.dtb \
sun8i-a83t-tbs-a711.dts
dtb-$(CONFIG_MACH_SUN8I_H3) += \
+ sun8i-h2-plus-bananapi-m2-zero.dtb \
sun8i-h2-plus-orangepi-zero.dtb \
sun8i-h3-bananapi-m2-plus.dtb \
sun8i-h3-libretech-all-h3-cc.dtb \
diff --git a/arch/arm/dts/sun8i-h2-plus-bananapi-m2-zero.dts
b/arch/arm/dts/sun8i-h2-plus-bananapi-m2-zero.dts
new file mode 100644
index 0000000..92e8cf4
--- /dev/null
+++ b/arch/arm/dts/sun8i-h2-plus-bananapi-m2-zero.dts
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2017 Icenowy Zheng <icen...@aosc.io>
+ *
+ * Based on sun8i-h3-bananapi-m2-plus.dts, which is:
+ * Copyright (C) 2016 Chen-Yu Tsai <w...@csie.org>
+ */
+
+/dts-v1/;
+#include "sun8i-h3.dtsi"
+#include "sunxi-common-regulators.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+ model = "Banana Pi BPI-M2-Zero";
+ compatible = "sinovoip,bpi-m2-zero", "allwinner,sun8i-h2-plus";
+
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart1;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ pwr_led {
+ label = "bananapi-m2-zero:red:pwr";
+ gpios = <&r_pio 0 10 GPIO_ACTIVE_HIGH>; /* PL10 */
+ default-state = "on";
+ };
+ };
+
+ gpio_keys {
+ compatible = "gpio-keys";
+
+ sw4 {
+ label = "power";
+ linux,code = <BTN_0>;
+ gpios = <&r_pio 0 3 GPIO_ACTIVE_LOW>;
+ };
+ };
+};
+
+&mmc0 {
+ vmmc-supply = <®_vcc3v3>;
+ bus-width = <4>;
+ /*
+ * On the production batch of this board the card detect GPIO is
+ * high active (card inserted), although on the early samples it's
+ * low active.
+ */
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
+ status = "okay";
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&uart1 {
+ status = "okay";
+};
diff --git a/board/sunxi/MAINTAINERS b/board/sunxi/MAINTAINERS
index 5eb8bbe..0d904d9 100644
--- a/board/sunxi/MAINTAINERS
+++ b/board/sunxi/MAINTAINERS
@@ -363,6 +363,11 @@ M: Icenowy Zheng <icen...@aosc.io>
S: Maintained
F: configs/Sinovoip_BPI_M2_Plus_defconfig
+SINOVOIP BPI M2 ZERO BOARD
+M: Icenowy Zheng <icen...@aosc.io>
+S: Maintained
+F: configs/Sinovoip_BPI_M2_Zero_defconfig
+
SINOVOIP BPI M3 A83T BOARD
M: VishnuPatekar <vishnupatekar0...@gmail.com>
S: Maintained
diff --git a/configs/bananapi_m2_zero_defconfig
b/configs/bananapi_m2_zero_defconfig
new file mode 100644
index 0000000..b919d8b
--- /dev/null
+++ b/configs/bananapi_m2_zero_defconfig
@@ -0,0 +1,15 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_SYS_TEXT_BASE=0x4a000000
+CONFIG_MACH_SUN8I_H3=y
+CONFIG_DRAM_CLK=408
+CONFIG_DRAM_ZQ=3881979
+CONFIG_DRAM_ODT_EN=y
+CONFIG_MMC0_CD_PIN=""
+CONFIG_DEFAULT_DEVICE_TREE="sun8i-h2-plus-bananapi-m2-zero"
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_SPL=y
+# CONFIG_CMD_FLASH is not set
+# CONFIG_SPL_DOS_PARTITION is not set
+# CONFIG_SPL_ISO_PARTITION is not set
+# CONFIG_SPL_EFI_PARTITION is not set
--
2.7.4
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