[PATCH 0/5] Meson8b: add support for the Endless Mini EC-100

[PATCH 0/5] Meson8b: add support for the Endless Mini EC-100

[Martin Blumenstingl]

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.


[0] https://github.com/endlessm/linux-meson/blob/d628bf1242928927a41f7482ba5ef7295e01a9ff/arch/arm/boot/dts/meson8b-ec100.dts

Martin Blumenstingl (5):
  dt-bindings: add vendor prefix for "Endless Mobile, Inc."
  dt-bindings: arm: amlogic: Add the Endless Mobile Endless Mini
    (EC-100)
  ARM: dts: meson8b: add the I2C_A, PWM_C and UART_B pins
  ARM: dts: meson8b: add the RMII pins
  ARM: dts: meson8b: Add support for the Endless Mini (EC-100)

 .../devicetree/bindings/arm/amlogic.txt       |   1 +
 .../devicetree/bindings/vendor-prefixes.txt   |   1 +
 arch/arm/boot/dts/Makefile                    |   1 +
 arch/arm/boot/dts/meson8b-ec100.dts           | 248 ++++++++++++++++++
 arch/arm/boot/dts/meson8b.dtsi                |  45 ++++
 5 files changed, 296 insertions(+)
 create mode 100644 arch/arm/boot/dts/meson8b-ec100.dts

-- 
2.19.0

[PATCH 0/5] Meson8b: add support for the Endless Mini EC-100

[Martin Blumenstingl]

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.


[0] https://github.com/endlessm/linux-meson/blob/d628bf1242928927a41f7482ba5ef7295e01a9ff/arch/arm/boot/dts/meson8b-ec100.dts

Martin Blumenstingl (5):
  dt-bindings: add vendor prefix for "Endless Mobile, Inc."
  dt-bindings: arm: amlogic: Add the Endless Mobile Endless Mini
    (EC-100)
  ARM: dts: meson8b: add the I2C_A, PWM_C and UART_B pins
  ARM: dts: meson8b: add the RMII pins
  ARM: dts: meson8b: Add support for the Endless Mini (EC-100)

 .../devicetree/bindings/arm/amlogic.txt       |   1 +
 .../devicetree/bindings/vendor-prefixes.txt   |   1 +
 arch/arm/boot/dts/Makefile                    |   1 +
 arch/arm/boot/dts/meson8b-ec100.dts           | 248 ++++++++++++++++++
 arch/arm/boot/dts/meson8b.dtsi                |  45 ++++
 5 files changed, 296 insertions(+)
 create mode 100644 arch/arm/boot/dts/meson8b-ec100.dts

-- 
2.19.0

[PATCH 0/5] Meson8b: add support for the Endless Mini EC-100

[Martin Blumenstingl]

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.


[0] https://github.com/endlessm/linux-meson/blob/d628bf1242928927a41f7482ba5ef7295e01a9ff/arch/arm/boot/dts/meson8b-ec100.dts

Martin Blumenstingl (5):
  dt-bindings: add vendor prefix for "Endless Mobile, Inc."
  dt-bindings: arm: amlogic: Add the Endless Mobile Endless Mini
    (EC-100)
  ARM: dts: meson8b: add the I2C_A, PWM_C and UART_B pins
  ARM: dts: meson8b: add the RMII pins
  ARM: dts: meson8b: Add support for the Endless Mini (EC-100)

 .../devicetree/bindings/arm/amlogic.txt       |   1 +
 .../devicetree/bindings/vendor-prefixes.txt   |   1 +
 arch/arm/boot/dts/Makefile                    |   1 +
 arch/arm/boot/dts/meson8b-ec100.dts           | 248 ++++++++++++++++++
 arch/arm/boot/dts/meson8b.dtsi                |  45 ++++
 5 files changed, 296 insertions(+)
 create mode 100644 arch/arm/boot/dts/meson8b-ec100.dts

-- 
2.19.0

[PATCH 1/5] dt-bindings: add vendor prefix for "Endless Mobile, Inc."

[Martin Blumenstingl]

Endless Mobile, Inc. started selling (small) computers in 2015.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
 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

[PATCH 1/5] dt-bindings: add vendor prefix for "Endless Mobile, Inc."

[Martin Blumenstingl]

Endless Mobile, Inc. started selling (small) computers in 2015.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
 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

[PATCH 1/5] dt-bindings: add vendor prefix for "Endless Mobile, Inc."

[Martin Blumenstingl]

Endless Mobile, Inc. started selling (small) computers in 2015.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
 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

[PATCH 2/5] dt-bindings: arm: amlogic: Add the Endless Mobile Endless Mini (EC-100)

[Martin Blumenstingl]

Add bindings documentation for the Endless Mini (EC-100) from Endless
Mobile.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
 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..99ca80d87aad 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,ec-100" (Meson8b)
   - "hardkernel,odroid-c1" (Meson8b)
   - "tronfy,mxq" (Meson8b)
 
-- 
2.19.0

[PATCH 2/5] dt-bindings: arm: amlogic: Add the Endless Mobile Endless Mini (EC-100)

[Martin Blumenstingl]

Add bindings documentation for the Endless Mini (EC-100) from Endless
Mobile.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
 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..99ca80d87aad 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,ec-100" (Meson8b)
   - "hardkernel,odroid-c1" (Meson8b)
   - "tronfy,mxq" (Meson8b)
 
-- 
2.19.0

[PATCH 2/5] dt-bindings: arm: amlogic: Add the Endless Mobile Endless Mini (EC-100)

[Martin Blumenstingl]

Add bindings documentation for the Endless Mini (EC-100) from Endless
Mobile.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
 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..99ca80d87aad 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,ec-100" (Meson8b)
   - "hardkernel,odroid-c1" (Meson8b)
   - "tronfy,mxq" (Meson8b)
 
-- 
2.19.0

[PATCH 3/5] ARM: dts: meson8b: add the I2C_A, PWM_C and UART_B pins

[Martin Blumenstingl]

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

[PATCH 3/5] ARM: dts: meson8b: add the I2C_A, PWM_C and UART_B pins

[Martin Blumenstingl]

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

[PATCH 3/5] ARM: dts: meson8b: add the I2C_A, PWM_C and UART_B pins

[Martin Blumenstingl]

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

[PATCH 4/5] ARM: dts: meson8b: add the RMII pins

[Martin Blumenstingl]

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

[PATCH 4/5] ARM: dts: meson8b: add the RMII pins

[Martin Blumenstingl]

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

[PATCH 4/5] ARM: dts: meson8b: add the RMII pins

[Martin Blumenstingl]

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

[PATCH 5/5] ARM: dts: meson8b: Add support for the Endless Mini (EC-100)

[Martin Blumenstingl]

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..a71043c0ddea
--- /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,ec-100", "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>;
+};
+
+&ethmac {
+	status = "okay";
+
+	pinctrl-0 = <&eth_rmii_pins>;
+	pinctrl-names = "default";
+
+	phy-handle = <&eth_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@0 {
+			/* IC Plus IP101A/G (0x02430c54) */
+			reg = <0>;
+		};
+	};
+};
+
+&i2c_A {
+	status = "okay";
+	pinctrl-0 = <&i2c_a_pins>;
+	pinctrl-names = "default";
+
+	rt5640: codec@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@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

[PATCH 5/5] ARM: dts: meson8b: Add support for the Endless Mini (EC-100)

[Martin Blumenstingl]

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..a71043c0ddea
--- /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,ec-100", "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>;
+};
+
+&ethmac {
+	status = "okay";
+
+	pinctrl-0 = <&eth_rmii_pins>;
+	pinctrl-names = "default";
+
+	phy-handle = <&eth_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

[PATCH 5/5] ARM: dts: meson8b: Add support for the Endless Mini (EC-100)

[Martin Blumenstingl]

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..a71043c0ddea
--- /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,ec-100", "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>;
+};
+
+&ethmac {
+	status = "okay";
+
+	pinctrl-0 = <&eth_rmii_pins>;
+	pinctrl-names = "default";
+
+	phy-handle = <&eth_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

Re: [PATCH 5/5] ARM: dts: meson8b: Add support for the Endless Mini (EC-100)

[Daniel Drake]

Hi Martin,

On Fri, Sep 14, 2018 at 4:22 AM, Martin Blumenstingl
<martin.blumenstingl@googlemail.com> wrote:
> The Endless Mini (EC-100) is a grapefruit-sized computer based on the
> Amlogic Meson8b (S805) SoC which comes in two variants.

Thanks for your work here, really happy to see this go by!

Would it be possible to adjust the compatible string to
"endless,ec100" without the hyphen to match what we've already been
shipping?

Just curious, is there now working USB and HDMI support in mainline on
this platform?

Thanks!
Daniel

[PATCH 5/5] ARM: dts: meson8b: Add support for the Endless Mini (EC-100)

[Daniel Drake]

Hi Martin,

On Fri, Sep 14, 2018 at 4:22 AM, Martin Blumenstingl
<martin.blumenstingl@googlemail.com> wrote:
> The Endless Mini (EC-100) is a grapefruit-sized computer based on the
> Amlogic Meson8b (S805) SoC which comes in two variants.

Thanks for your work here, really happy to see this go by!

Would it be possible to adjust the compatible string to
"endless,ec100" without the hyphen to match what we've already been
shipping?

Just curious, is there now working USB and HDMI support in mainline on
this platform?

Thanks!
Daniel

[PATCH 5/5] ARM: dts: meson8b: Add support for the Endless Mini (EC-100)

[Daniel Drake]

Hi Martin,

On Fri, Sep 14, 2018 at 4:22 AM, Martin Blumenstingl
<martin.blumenstingl@googlemail.com> wrote:
> The Endless Mini (EC-100) is a grapefruit-sized computer based on the
> Amlogic Meson8b (S805) SoC which comes in two variants.

Thanks for your work here, really happy to see this go by!

Would it be possible to adjust the compatible string to
"endless,ec100" without the hyphen to match what we've already been
shipping?

Just curious, is there now working USB and HDMI support in mainline on
this platform?

Thanks!
Daniel

Re: [PATCH 5/5] ARM: dts: meson8b: Add support for the Endless Mini (EC-100)

[Martin Blumenstingl]

Hi Daniel,

On Fri, Sep 14, 2018 at 8:24 AM Daniel Drake <drake@endlessm.com> wrote:
>
> Hi Martin,
>
> On Fri, Sep 14, 2018 at 4:22 AM, Martin Blumenstingl
> <martin.blumenstingl@googlemail.com> wrote:
> > The Endless Mini (EC-100) is a grapefruit-sized computer based on the
> > Amlogic Meson8b (S805) SoC which comes in two variants.
>
> Thanks for your work here, really happy to see this go by!
you're welcome - actually having a EC-100 helped a lot! :)

> Would it be possible to adjust the compatible string to
> "endless,ec100" without the hyphen to match what we've already been
> shipping?
sure, I'll wait a few days if more questions come up then I'll send a v2

> Just curious, is there now working USB and HDMI support in mainline on
> this platform?
USB is working fine - you just need d9707490077bee "usb: dwc2: Fix
call location of dwc2_check_core_endianness" (which hit mainline
today) or test this against linux-next
HDMI is not supported

other topics I'm working on:
- CPU frequency scaling
- temperature sensor support in the SAR ADC driver
- ...whatever attracts my attention / interest ;)


Regards
Martin

[PATCH 5/5] ARM: dts: meson8b: Add support for the Endless Mini (EC-100)

[Martin Blumenstingl]

Hi Daniel,

On Fri, Sep 14, 2018 at 8:24 AM Daniel Drake <drake@endlessm.com> wrote:
>
> Hi Martin,
>
> On Fri, Sep 14, 2018 at 4:22 AM, Martin Blumenstingl
> <martin.blumenstingl@googlemail.com> wrote:
> > The Endless Mini (EC-100) is a grapefruit-sized computer based on the
> > Amlogic Meson8b (S805) SoC which comes in two variants.
>
> Thanks for your work here, really happy to see this go by!
you're welcome - actually having a EC-100 helped a lot! :)

> Would it be possible to adjust the compatible string to
> "endless,ec100" without the hyphen to match what we've already been
> shipping?
sure, I'll wait a few days if more questions come up then I'll send a v2

> Just curious, is there now working USB and HDMI support in mainline on
> this platform?
USB is working fine - you just need d9707490077bee "usb: dwc2: Fix
call location of dwc2_check_core_endianness" (which hit mainline
today) or test this against linux-next
HDMI is not supported

other topics I'm working on:
- CPU frequency scaling
- temperature sensor support in the SAR ADC driver
- ...whatever attracts my attention / interest ;)


Regards
Martin

[PATCH 5/5] ARM: dts: meson8b: Add support for the Endless Mini (EC-100)

[Martin Blumenstingl]

Hi Daniel,

On Fri, Sep 14, 2018 at 8:24 AM Daniel Drake <drake@endlessm.com> wrote:
>
> Hi Martin,
>
> On Fri, Sep 14, 2018 at 4:22 AM, Martin Blumenstingl
> <martin.blumenstingl@googlemail.com> wrote:
> > The Endless Mini (EC-100) is a grapefruit-sized computer based on the
> > Amlogic Meson8b (S805) SoC which comes in two variants.
>
> Thanks for your work here, really happy to see this go by!
you're welcome - actually having a EC-100 helped a lot! :)

> Would it be possible to adjust the compatible string to
> "endless,ec100" without the hyphen to match what we've already been
> shipping?
sure, I'll wait a few days if more questions come up then I'll send a v2

> Just curious, is there now working USB and HDMI support in mainline on
> this platform?
USB is working fine - you just need d9707490077bee "usb: dwc2: Fix
call location of dwc2_check_core_endianness" (which hit mainline
today) or test this against linux-next
HDMI is not supported

other topics I'm working on:
- CPU frequency scaling
- temperature sensor support in the SAR ADC driver
- ...whatever attracts my attention / interest ;)


Regards
Martin

Re: [PATCH 1/5] dt-bindings: add vendor prefix for "Endless Mobile, Inc."

[Rob Herring]

On Thu, 13 Sep 2018 22:21:59 +0200, Martin Blumenstingl wrote:
> Endless Mobile, Inc. started selling (small) computers in 2015.
> 
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> ---
>  Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
>  1 file changed, 1 insertion(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>

[PATCH 1/5] dt-bindings: add vendor prefix for "Endless Mobile, Inc."

[Rob Herring]

On Thu, 13 Sep 2018 22:21:59 +0200, Martin Blumenstingl wrote:
> Endless Mobile, Inc. started selling (small) computers in 2015.
> 
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> ---
>  Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
>  1 file changed, 1 insertion(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>

[PATCH 1/5] dt-bindings: add vendor prefix for "Endless Mobile, Inc."

[Rob Herring]

On Thu, 13 Sep 2018 22:21:59 +0200, Martin Blumenstingl wrote:
> Endless Mobile, Inc. started selling (small) computers in 2015.
> 
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> ---
>  Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
>  1 file changed, 1 insertion(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>

Re: [PATCH 2/5] dt-bindings: arm: amlogic: Add the Endless Mobile Endless Mini (EC-100)

[Rob Herring]

On Thu, 13 Sep 2018 22:22:00 +0200, Martin Blumenstingl wrote:
> Add bindings documentation for the Endless Mini (EC-100) from Endless
> Mobile.
> 
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> ---
>  Documentation/devicetree/bindings/arm/amlogic.txt | 1 +
>  1 file changed, 1 insertion(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>

[PATCH 2/5] dt-bindings: arm: amlogic: Add the Endless Mobile Endless Mini (EC-100)

[Rob Herring]

On Thu, 13 Sep 2018 22:22:00 +0200, Martin Blumenstingl wrote:
> Add bindings documentation for the Endless Mini (EC-100) from Endless
> Mobile.
> 
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> ---
>  Documentation/devicetree/bindings/arm/amlogic.txt | 1 +
>  1 file changed, 1 insertion(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>

[PATCH 2/5] dt-bindings: arm: amlogic: Add the Endless Mobile Endless Mini (EC-100)

[Rob Herring]

On Thu, 13 Sep 2018 22:22:00 +0200, Martin Blumenstingl wrote:
> Add bindings documentation for the Endless Mini (EC-100) from Endless
> Mobile.
> 
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> ---
>  Documentation/devicetree/bindings/arm/amlogic.txt | 1 +
>  1 file changed, 1 insertion(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>