* [PATCH v2 1/5] dt-bindings: add vendor prefix for "Endless Mobile, Inc."
2018-09-22 15:09 [PATCH v2 0/5] Meson8b: add support for the Endless Mini EC-100 Martin Blumenstingl
@ 2018-09-22 15:09 ` Martin Blumenstingl
2018-09-22 15:10 ` [PATCH v2 2/5] dt-bindings: arm: amlogic: Add the Endless Mobile Endless Mini (EC-100) Martin Blumenstingl
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Martin Blumenstingl @ 2018-09-22 15:09 UTC (permalink / raw)
To: linux-arm-kernel
Endless Mobile, Inc. started selling (small) computers in 2015.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail•com>
Reviewed-by: Rob Herring <robh@kernel•org>
---
Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 2c3fc512e746..1c63d2c2d48f 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -114,6 +114,7 @@ elan Elan Microelectronic Corp.
embest Shenzhen Embest Technology Co., Ltd.
emmicro EM Microelectronic
emtrion emtrion GmbH
+endless Endless Mobile, Inc.
energymicro Silicon Laboratories (formerly Energy Micro AS)
engicam Engicam S.r.l.
epcos EPCOS AG
--
2.19.0
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 2/5] dt-bindings: arm: amlogic: Add the Endless Mobile Endless Mini (EC-100)
2018-09-22 15:09 [PATCH v2 0/5] Meson8b: add support for the Endless Mini EC-100 Martin Blumenstingl
2018-09-22 15:09 ` [PATCH v2 1/5] dt-bindings: add vendor prefix for "Endless Mobile, Inc." Martin Blumenstingl
@ 2018-09-22 15:10 ` Martin Blumenstingl
2018-09-22 15:10 ` [PATCH v2 3/5] ARM: dts: meson8b: add the I2C_A, PWM_C and UART_B pins Martin Blumenstingl
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Martin Blumenstingl @ 2018-09-22 15:10 UTC (permalink / raw)
To: linux-arm-kernel
Add bindings documentation for the Endless Mini (EC-100) from Endless
Mobile.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail•com>
Reviewed-by: Rob Herring <robh@kernel•org>
---
Documentation/devicetree/bindings/arm/amlogic.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/arm/amlogic.txt b/Documentation/devicetree/bindings/arm/amlogic.txt
index b5c2b5c35766..2c2eee206736 100644
--- a/Documentation/devicetree/bindings/arm/amlogic.txt
+++ b/Documentation/devicetree/bindings/arm/amlogic.txt
@@ -63,6 +63,7 @@ Board compatible values (alphabetically, grouped by SoC):
- "minix,neo-x8" (Meson8)
+ - "endless,ec100" (Meson8b)
- "hardkernel,odroid-c1" (Meson8b)
- "tronfy,mxq" (Meson8b)
--
2.19.0
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 3/5] ARM: dts: meson8b: add the I2C_A, PWM_C and UART_B pins
2018-09-22 15:09 [PATCH v2 0/5] Meson8b: add support for the Endless Mini EC-100 Martin Blumenstingl
2018-09-22 15:09 ` [PATCH v2 1/5] dt-bindings: add vendor prefix for "Endless Mobile, Inc." Martin Blumenstingl
2018-09-22 15:10 ` [PATCH v2 2/5] dt-bindings: arm: amlogic: Add the Endless Mobile Endless Mini (EC-100) Martin Blumenstingl
@ 2018-09-22 15:10 ` Martin Blumenstingl
2018-09-22 15:10 ` [PATCH v2 4/5] ARM: dts: meson8b: add the RMII pins Martin Blumenstingl
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Martin Blumenstingl @ 2018-09-22 15:10 UTC (permalink / raw)
To: linux-arm-kernel
These are used for example on the Endless Mini (EC-100):
- I2C_A is connected to the Realtek RT5640 audio codec
- PWM_C (GPIODV_9) is connected to a PWM regulator which is used for
VCCK (CPU voltage supply)
- UART_B is connected to the Bluetooth module (of the RTL8723BS SDIO
wifi and Bluetooth combo chip)
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail•com>
---
arch/arm/boot/dts/meson8b.dtsi | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/arch/arm/boot/dts/meson8b.dtsi b/arch/arm/boot/dts/meson8b.dtsi
index f77e419c1c65..4bbbbc6bea83 100644
--- a/arch/arm/boot/dts/meson8b.dtsi
+++ b/arch/arm/boot/dts/meson8b.dtsi
@@ -223,6 +223,13 @@
};
};
+ i2c_a_pins: i2c-a {
+ mux {
+ groups = "i2c_sda_a", "i2c_sck_a";
+ function = "i2c_a";
+ };
+ };
+
sd_b_pins: sd-b {
mux {
groups = "sd_d0_b", "sd_d1_b", "sd_d2_b",
@@ -230,6 +237,29 @@
function = "sd_b";
};
};
+
+ pwm_c1_pins: pwm-c1 {
+ mux {
+ groups = "pwm_c1";
+ function = "pwm_c";
+ };
+ };
+
+ uart_b0_pins: uart-b0 {
+ mux {
+ groups = "uart_tx_b0",
+ "uart_rx_b0";
+ function = "uart_b";
+ };
+ };
+
+ uart_b0_cts_rts_pins: uart-b0-cts-rts {
+ mux {
+ groups = "uart_cts_b0",
+ "uart_rts_b0";
+ function = "uart_b";
+ };
+ };
};
};
--
2.19.0
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 4/5] ARM: dts: meson8b: add the RMII pins
2018-09-22 15:09 [PATCH v2 0/5] Meson8b: add support for the Endless Mini EC-100 Martin Blumenstingl
` (2 preceding siblings ...)
2018-09-22 15:10 ` [PATCH v2 3/5] ARM: dts: meson8b: add the I2C_A, PWM_C and UART_B pins Martin Blumenstingl
@ 2018-09-22 15:10 ` Martin Blumenstingl
2018-09-22 15:10 ` [PATCH v2 5/5] ARM: dts: meson8b: Add support for the Endless Mini (EC-100) Martin Blumenstingl
2018-09-26 8:50 ` [PATCH v2 0/5] Meson8b: add support for the Endless Mini EC-100 Kevin Hilman
5 siblings, 0 replies; 7+ messages in thread
From: Martin Blumenstingl @ 2018-09-22 15:10 UTC (permalink / raw)
To: linux-arm-kernel
Some boards use an RMII Ethernet PHY which requires fewer pins than the
RGMII PHYs. Add a separate eth_rmii_pins node which does not include the
pins which are only required for RGMII (but not for RMII) PHYs.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail•com>
---
arch/arm/boot/dts/meson8b.dtsi | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/arch/arm/boot/dts/meson8b.dtsi b/arch/arm/boot/dts/meson8b.dtsi
index 4bbbbc6bea83..cd1ca9dda126 100644
--- a/arch/arm/boot/dts/meson8b.dtsi
+++ b/arch/arm/boot/dts/meson8b.dtsi
@@ -223,6 +223,21 @@
};
};
+ eth_rmii_pins: eth-rmii {
+ mux {
+ groups = "eth_tx_en",
+ "eth_txd1_0",
+ "eth_txd0_0",
+ "eth_rx_clk",
+ "eth_rx_dv",
+ "eth_rxd1",
+ "eth_rxd0",
+ "eth_mdio_en",
+ "eth_mdc";
+ function = "ethernet";
+ };
+ };
+
i2c_a_pins: i2c-a {
mux {
groups = "i2c_sda_a", "i2c_sck_a";
--
2.19.0
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 5/5] ARM: dts: meson8b: Add support for the Endless Mini (EC-100)
2018-09-22 15:09 [PATCH v2 0/5] Meson8b: add support for the Endless Mini EC-100 Martin Blumenstingl
` (3 preceding siblings ...)
2018-09-22 15:10 ` [PATCH v2 4/5] ARM: dts: meson8b: add the RMII pins Martin Blumenstingl
@ 2018-09-22 15:10 ` Martin Blumenstingl
2018-09-26 8:50 ` [PATCH v2 0/5] Meson8b: add support for the Endless Mini EC-100 Kevin Hilman
5 siblings, 0 replies; 7+ messages in thread
From: Martin Blumenstingl @ 2018-09-22 15:10 UTC (permalink / raw)
To: linux-arm-kernel
The Endless Mini (EC-100) is a grapefruit-sized computer based on the
Amlogic Meson8b (S805) SoC which comes in two variants.
Both variants have in common:
- Amlogic Meson8b (S805) SoC
- two USB 2.0 ports on the rear, one one the front (connected to the SoC
through an internal hub)
- 3.5mm Stereo out and MIC combo port
- HDMI and CVBS output
- 5V power supply (rated at 3A / 15W)
- an internal embedded micro-controller (called "EC") which implements a
"breathing" effect for the LED and allows shutting down (powering off)
the whole device
- 10/100 Mbit/s Ethernet using an IC Plus IP101A/G PHY (note: the website
incorrectly lists a Gigabit Ethernet port)
- the CPU voltage is regulated using a PWM regulator. The GPL sources of
the EC-100 are using a PWM value of 0x1c0000 for 0.86V and a PWM value
of 0x00001c for 1.14V. When using the XTAL (24MHz) as input this
translates into a PWM period of 1148ns with 0.86V using a duty cycle of
100% and 1.14V using a duty cycle of 0%.
The main differences are:
- the main indicator for the variant is the RAM size: the "cheaper"
variant has 1 GB of RAM, while the more expensive one comes with 2GB
- the storage size differs: 24 GB vs 32 GB
- the "1 GB RAM" variant has Ethernet connectivity only, while the "2 GB"
variant has a Realtek RTL8723BS SDIO chip which adds 802.11b/g/n wifi
and Bluetooth 4.0 support
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail•com>
---
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/meson8b-ec100.dts | 248 ++++++++++++++++++++++++++++
2 files changed, 249 insertions(+)
create mode 100644 arch/arm/boot/dts/meson8b-ec100.dts
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index b5bd3de87c33..856ebc036cc4 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -321,6 +321,7 @@ dtb-$(CONFIG_MACH_MESON6) += \
meson6-atv1200.dtb
dtb-$(CONFIG_MACH_MESON8) += \
meson8-minix-neo-x8.dtb \
+ meson8b-ec100.dtb \
meson8b-mxq.dtb \
meson8b-odroidc1.dtb \
meson8m2-mxiii-plus.dtb
diff --git a/arch/arm/boot/dts/meson8b-ec100.dts b/arch/arm/boot/dts/meson8b-ec100.dts
new file mode 100644
index 000000000000..0872f6e3abf5
--- /dev/null
+++ b/arch/arm/boot/dts/meson8b-ec100.dts
@@ -0,0 +1,248 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2018 Martin Blumenstingl <martin.blumenstingl@googlemail•com>.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+#include "meson8b.dtsi"
+
+/ {
+ model = "Endless Computers Endless Mini";
+ compatible = "endless,ec100", "amlogic,meson8b";
+
+ aliases {
+ serial0 = &uart_AO;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory {
+ reg = <0x40000000 0x40000000>;
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys-polled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ poll-interval = <100>;
+
+ pal-switch {
+ label = "pal";
+ linux,input-type = <EV_SW>;
+ linux,code = <KEY_SWITCHVIDEOMODE>;
+ gpios = <&gpio GPIOH_7 GPIO_ACTIVE_LOW>;
+ };
+
+ ntsc-switch {
+ label = "ntsc";
+ linux,input-type = <EV_SW>;
+ linux,code = <KEY_SWITCHVIDEOMODE>;
+ gpios = <&gpio GPIOH_8 GPIO_ACTIVE_HIGH>;
+ };
+
+ power-button {
+ label = "power";
+ linux,code = <KEY_POWER>;
+ gpios = <&gpio GPIOH_9 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ gpio-poweroff {
+ compatible = "gpio-poweroff";
+ /*
+ * shutdown is managed by the EC (embedded micro-controller)
+ * which is configured through GPIOAO_2 (poweroff GPIO) and
+ * GPIOAO_7 (power LED, which has to go LOW as well).
+ */
+ gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
+ timeout-ms = <20000>;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ power {
+ label = "ec100:red:power";
+ /*
+ * Needs to go LOW (together with the poweroff GPIO)
+ * during shutdown to allow the EC (embedded
+ * micro-controller) to shutdown the system. Setting
+ * the output to LOW signals the EC to start a
+ * "breathing"/pulsing effect until the power is fully
+ * turned off.
+ */
+ gpios = <&gpio_ao GPIOAO_7 GPIO_ACTIVE_HIGH>;
+ default-state = "on";
+ };
+ };
+
+ usb_vbus: regulator-usb-vbus {
+ compatible = "regulator-fixed";
+
+ regulator-name = "USB_VBUS";
+
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+
+ gpio = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ vcc_5v: regulator-vcc5v {
+ compatible = "regulator-fixed";
+
+ regulator-name = "VCC5V";
+
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+
+ gpio = <&gpio GPIODV_29 GPIO_ACTIVE_LOW>;
+
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vcck: regulator-vcck {
+ compatible = "pwm-regulator";
+
+ regulator-name = "VCCK";
+ regulator-min-microvolt = <860000>;
+ regulator-max-microvolt = <1140000>;
+
+ pwms = <&pwm_cd 0 1148 0>;
+ pwm-dutycycle-range = <100 0>;
+
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vcc_1v8: regulator-vcc1v8 {
+ compatible = "regulator-fixed";
+
+ regulator-name = "VCC1V8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ vcc_3v3: regulator-vcc3v3 {
+ compatible = "regulator-fixed";
+
+ regulator-name = "VCC3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+};
+
+&cpu0 {
+ cpu-supply = <&vcck>;
+};
+
+ðmac {
+ status = "okay";
+
+ pinctrl-0 = <ð_rmii_pins>;
+ pinctrl-names = "default";
+
+ phy-handle = <ð_phy0>;
+ phy-mode = "rmii";
+
+ snps,reset-gpio = <&gpio GPIOH_4 0>;
+ snps,reset-delays-us = <0 10000 1000000>;
+ snps,reset-active-low;
+
+ mdio {
+ compatible = "snps,dwmac-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ eth_phy0: ethernet-phy at 0 {
+ /* IC Plus IP101A/G (0x02430c54) */
+ reg = <0>;
+ };
+ };
+};
+
+&i2c_A {
+ status = "okay";
+ pinctrl-0 = <&i2c_a_pins>;
+ pinctrl-names = "default";
+
+ rt5640: codec at 1c {
+ compatible = "realtek,rt5640";
+ reg = <0x1c>;
+ interrupt-parent = <&gpio_intc>;
+ interrupts = <13 IRQ_TYPE_EDGE_BOTH>; /* GPIOAO_13 */
+ realtek,in1-differential;
+ };
+};
+
+&saradc {
+ status = "okay";
+ vref-supply = <&vcc_1v8>;
+};
+
+&sdio {
+ status = "okay";
+
+ pinctrl-0 = <&sd_b_pins>;
+ pinctrl-names = "default";
+
+ /* SD card */
+ sd_card_slot: slot at 1 {
+ compatible = "mmc-slot";
+ reg = <1>;
+ status = "okay";
+
+ bus-width = <4>;
+ no-sdio;
+ cap-mmc-highspeed;
+ cap-sd-highspeed;
+ disable-wp;
+
+ cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
+ cd-inverted;
+
+ vmmc-supply = <&vcc_3v3>;
+ };
+};
+
+&pwm_cd {
+ status = "okay";
+ pinctrl-0 = <&pwm_c1_pins>;
+ pinctrl-names = "default";
+ clocks = <&clkc CLKID_XTAL>;
+ clock-names = "clkin0";
+};
+
+/* exposed through the pin headers labeled "URDUG1" on the top of the PCB */
+&uart_AO {
+ status = "okay";
+ pinctrl-0 = <&uart_ao_a_pins>;
+ pinctrl-names = "default";
+};
+
+/*
+ * connected to the Bluetooth part of the RTL8723BS SDIO wifi / Bluetooth
+ * combo chip. This is only available on the variant with 2GB RAM.
+ */
+&uart_B {
+ status = "okay";
+ pinctrl-0 = <&uart_b0_pins>, <&uart_b0_cts_rts_pins>;
+ pinctrl-names = "default";
+ uart-has-rtscts;
+};
+
+&usb1 {
+ status = "okay";
+ vbus-supply = <&usb_vbus>;
+};
+
+&usb1_phy {
+ status = "okay";
+};
--
2.19.0
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH v2 0/5] Meson8b: add support for the Endless Mini EC-100
2018-09-22 15:09 [PATCH v2 0/5] Meson8b: add support for the Endless Mini EC-100 Martin Blumenstingl
` (4 preceding siblings ...)
2018-09-22 15:10 ` [PATCH v2 5/5] ARM: dts: meson8b: Add support for the Endless Mini (EC-100) Martin Blumenstingl
@ 2018-09-26 8:50 ` Kevin Hilman
5 siblings, 0 replies; 7+ messages in thread
From: Kevin Hilman @ 2018-09-26 8:50 UTC (permalink / raw)
To: linux-arm-kernel
Martin Blumenstingl <martin.blumenstingl@googlemail•com> writes:
> This series adds support for the "Endless Mini" grapefruit-sized mini PC
> from Endless Mobile, Inc. The internal name of this device is EC-100
> (this can be found for example in the GPL kernel tree which is based on
> Amlogic's 3.10 kernel: [0]).
>
> The board is using a Meson8b (S805) SoC with various peripherals.
> The biggest difference compared to boards which are based on Amlogic's
> reference designs is that this board comes with an embedded micro-
> controller called "EC" which makes the system LED pulse during boot
> and allows powering off the board. It also comes with a 10/100 Mbit/s
> Ethernet port and one USB host port.
> There are two variants:
> - 2GB RAM, 32GB storage, 802.11bgn and Bluetooth 4.0
> - 1GB RAM, 24GB storage, neither wifi nor Bluetooth
>
> This series contains support for the new board as well as supporting
> patches for the new vendor prefix and the pin definitions in
> meson8b.dtsi so various peripherals can be enabled.
Applied to v4.20/dt,
Thanks,
Kevin
^ permalink raw reply [flat|nested] 7+ messages in thread