[PATCH 0/3] ARM: dts: am335x-chili*: Move nodes to proper place and add poweroff

[PATCH 0/3] ARM: dts: am335x-chili*: Move nodes to proper place and add poweroff

[Marcin Niestroj]

Hi,

These patches move board-specific device-tree nodes from ChiliSOM to
ChiliBoard dts files. These include uart and ethernet configuration.
Additionally add poweroff support for all ChiliSOM devices.

Developed and tested on ChiliBoard using v4.6-rc3.

Marcin Niestroj (3):
  ARM: dts: am335x-chili*: Move uart0 description from SOM to board
  ARM: dts: am335x-chili*: Move Ethernet MAC description from SOM to
    board
  ARM: dts: am335x-chilisom: Enable poweroff PMIC sequence using RTC
    signal

 arch/arm/boot/dts/am335x-chiliboard.dts | 75 ++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/am335x-chilisom.dtsi  | 76 +--------------------------------
 2 files changed, 77 insertions(+), 74 deletions(-)

-- 
2.8.0

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[PATCH 1/3] ARM: dts: am335x-chili*: Move uart0 description from SOM to board

[Marcin Niestroj]

uart0 configuration code has been in SOM. However, it is possible to
use all (or none) of 6 uart's of AM335x processor present on ChiliSOM.

This fix moves declaration of uart0 from ChiliSOM to ChiliBoard, because
use of uart is strictly board-specific.

Signed-off-by: Marcin Niestroj <m.niestroj-z3quKL4iOrmQ6ZAhV5LmOA@public.gmane.org>
---
 arch/arm/boot/dts/am335x-chiliboard.dts | 14 ++++++++++++++
 arch/arm/boot/dts/am335x-chilisom.dtsi  | 14 --------------
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/arm/boot/dts/am335x-chiliboard.dts b/arch/arm/boot/dts/am335x-chiliboard.dts
index 15d47ab..4aae702 100644
--- a/arch/arm/boot/dts/am335x-chiliboard.dts
+++ b/arch/arm/boot/dts/am335x-chiliboard.dts
@@ -35,6 +35,13 @@
 };
 
 &am33xx_pinmux {
+	uart0_pins: pinmux_uart0_pins {
+		pinctrl-single,pins = <
+			AM33XX_IOPAD(0x970, PIN_INPUT_PULLUP | MUX_MODE0)	/* uart0_rxd.uart0_rxd */
+			AM33XX_IOPAD(0x974, PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* uart0_txd.uart0_txd */
+		>;
+	};
+
 	usb1_drvvbus: usb1_drvvbus {
 		pinctrl-single,pins = <
 			AM33XX_IOPAD(0xa34, PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* usb1_drvvbus.usb1_drvvbus */
@@ -61,6 +68,13 @@
 	};
 };
 
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins>;
+
+	status = "okay";
+};
+
 &ldo4_reg {
 	regulator-min-microvolt = <3300000>;
 	regulator-max-microvolt = <3300000>;
diff --git a/arch/arm/boot/dts/am335x-chilisom.dtsi b/arch/arm/boot/dts/am335x-chilisom.dtsi
index 95461a2..986f96c 100644
--- a/arch/arm/boot/dts/am335x-chilisom.dtsi
+++ b/arch/arm/boot/dts/am335x-chilisom.dtsi
@@ -35,13 +35,6 @@
 		>;
 	};
 
-	uart0_pins: pinmux_uart0_pins {
-		pinctrl-single,pins = <
-			AM33XX_IOPAD(0x970, PIN_INPUT_PULLUP | MUX_MODE0)	/* uart0_rxd.uart0_rxd */
-			AM33XX_IOPAD(0x974, PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* uart0_txd.uart0_txd */
-		>;
-	};
-
 	cpsw_default: cpsw_default {
 		pinctrl-single,pins = <
 			/* Slave 1 */
@@ -109,13 +102,6 @@
 	};
 };
 
-&uart0 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&uart0_pins>;
-
-	status = "okay";
-};
-
 &i2c0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c0_pins>;
-- 
2.8.0

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[PATCH 2/3] ARM: dts: am335x-chili*: Move Ethernet MAC description from SOM to board

[Marcin Niestroj]

ChiliSOM has 2 Ethernet subsystems with different types of possibly used
PHY interfaces (i.e. MII, RMII, GMII, RGMII). Current code configured
pinmux for RMII on 1st Ethernet subsystem and enabled Ethernet MAC with
1 slave for all boards which use ChiliSOM.

This change moves pinmux configuration of 1st Ethernet subsystem to
ChiliBoard description, as this is board-specific.

Signed-off-by: Marcin Niestroj <m.niestroj-z3quKL4iOrmQ6ZAhV5LmOA@public.gmane.org>
---
 arch/arm/boot/dts/am335x-chiliboard.dts | 61 ++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/am335x-chilisom.dtsi  | 62 ---------------------------------
 2 files changed, 61 insertions(+), 62 deletions(-)

diff --git a/arch/arm/boot/dts/am335x-chiliboard.dts b/arch/arm/boot/dts/am335x-chiliboard.dts
index 4aae702..2a624b3 100644
--- a/arch/arm/boot/dts/am335x-chiliboard.dts
+++ b/arch/arm/boot/dts/am335x-chiliboard.dts
@@ -42,6 +42,52 @@
 		>;
 	};
 
+	cpsw_default: cpsw_default {
+		pinctrl-single,pins = <
+			/* Slave 1 */
+			AM33XX_IOPAD(0x90c, PIN_INPUT_PULLDOWN | MUX_MODE1)  /* mii1_crs.rmii1_crs */
+			AM33XX_IOPAD(0x910, PIN_INPUT_PULLUP | MUX_MODE1)	/* mii1_rxerr.rmii1_rxerr */
+			AM33XX_IOPAD(0x914, PIN_OUTPUT_PULLDOWN | MUX_MODE1)	/* mii1_txen.rmii1_txen */
+			AM33XX_IOPAD(0x924, PIN_OUTPUT_PULLDOWN | MUX_MODE1)	/* mii1_txd1.rmii1_txd1 */
+			AM33XX_IOPAD(0x928, PIN_OUTPUT_PULLDOWN | MUX_MODE1)	/* mii1_txd0.rmii1_txd0 */
+			AM33XX_IOPAD(0x93c, PIN_INPUT_PULLUP | MUX_MODE1)	/* mii1_rxd1.rmii1_rxd1 */
+			AM33XX_IOPAD(0x940, PIN_INPUT_PULLUP | MUX_MODE1)	/* mii1_rxd0.rmii1_rxd0 */
+			AM33XX_IOPAD(0x944, PIN_INPUT_PULLDOWN | MUX_MODE0)	/* rmii1_ref_clk.rmii_ref_clk */
+		>;
+	};
+
+	cpsw_sleep: cpsw_sleep {
+		pinctrl-single,pins = <
+			/* Slave 1 reset value */
+			AM33XX_IOPAD(0x90c, PIN_INPUT_PULLDOWN | MUX_MODE7)
+			AM33XX_IOPAD(0x910, PIN_INPUT_PULLDOWN | MUX_MODE7)
+			AM33XX_IOPAD(0x914, PIN_INPUT_PULLDOWN | MUX_MODE7)
+			AM33XX_IOPAD(0x918, PIN_INPUT_PULLDOWN | MUX_MODE7)
+			AM33XX_IOPAD(0x924, PIN_INPUT_PULLDOWN | MUX_MODE7)
+			AM33XX_IOPAD(0x928, PIN_INPUT_PULLDOWN | MUX_MODE7)
+			AM33XX_IOPAD(0x93c, PIN_INPUT_PULLDOWN | MUX_MODE7)
+			AM33XX_IOPAD(0x940, PIN_INPUT_PULLDOWN | MUX_MODE7)
+			AM33XX_IOPAD(0x944, PIN_INPUT_PULLDOWN | MUX_MODE7)
+		>;
+	};
+
+	davinci_mdio_default: davinci_mdio_default {
+		pinctrl-single,pins = <
+			/* mdio_data.mdio_data */
+			AM33XX_IOPAD(0x948, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)
+			/* mdio_clk.mdio_clk */
+			AM33XX_IOPAD(0x94c, PIN_OUTPUT_PULLUP | MUX_MODE0)
+		>;
+	};
+
+	davinci_mdio_sleep: davinci_mdio_sleep {
+		pinctrl-single,pins = <
+			/* MDIO reset value */
+			AM33XX_IOPAD(0x948, PIN_INPUT_PULLDOWN | MUX_MODE7)
+			AM33XX_IOPAD(0x94c, PIN_INPUT_PULLDOWN | MUX_MODE7)
+		>;
+	};
+
 	usb1_drvvbus: usb1_drvvbus {
 		pinctrl-single,pins = <
 			AM33XX_IOPAD(0xa34, PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* usb1_drvvbus.usb1_drvvbus */
@@ -81,6 +127,21 @@
 };
 
 /* Ethernet */
+&mac {
+	slaves = <1>;
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&cpsw_default>;
+	pinctrl-1 = <&cpsw_sleep>;
+	status = "okay";
+};
+
+&davinci_mdio {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&davinci_mdio_default>;
+	pinctrl-1 = <&davinci_mdio_sleep>;
+	status = "okay";
+};
+
 &cpsw_emac0 {
 	phy_id = <&davinci_mdio>, <0>;
 	phy-mode = "rmii";
diff --git a/arch/arm/boot/dts/am335x-chilisom.dtsi b/arch/arm/boot/dts/am335x-chilisom.dtsi
index 986f96c..5276399 100644
--- a/arch/arm/boot/dts/am335x-chilisom.dtsi
+++ b/arch/arm/boot/dts/am335x-chilisom.dtsi
@@ -35,52 +35,6 @@
 		>;
 	};
 
-	cpsw_default: cpsw_default {
-		pinctrl-single,pins = <
-			/* Slave 1 */
-			AM33XX_IOPAD(0x90c, PIN_INPUT_PULLDOWN | MUX_MODE1)  /* mii1_crs.rmii1_crs */
-			AM33XX_IOPAD(0x910, PIN_INPUT_PULLUP | MUX_MODE1)	/* mii1_rxerr.rmii1_rxerr */
-			AM33XX_IOPAD(0x914, PIN_OUTPUT_PULLDOWN | MUX_MODE1)	/* mii1_txen.rmii1_txen */
-			AM33XX_IOPAD(0x924, PIN_OUTPUT_PULLDOWN | MUX_MODE1)	/* mii1_txd1.rmii1_txd1 */
-			AM33XX_IOPAD(0x928, PIN_OUTPUT_PULLDOWN | MUX_MODE1)	/* mii1_txd0.rmii1_txd0 */
-			AM33XX_IOPAD(0x93c, PIN_INPUT_PULLUP | MUX_MODE1)	/* mii1_rxd1.rmii1_rxd1 */
-			AM33XX_IOPAD(0x940, PIN_INPUT_PULLUP | MUX_MODE1)	/* mii1_rxd0.rmii1_rxd0 */
-			AM33XX_IOPAD(0x944, PIN_INPUT_PULLDOWN | MUX_MODE0)	/* rmii1_ref_clk.rmii_ref_clk */
-		>;
-	};
-
-	cpsw_sleep: cpsw_sleep {
-		pinctrl-single,pins = <
-			/* Slave 1 reset value */
-			AM33XX_IOPAD(0x90c, PIN_INPUT_PULLDOWN | MUX_MODE7)
-			AM33XX_IOPAD(0x910, PIN_INPUT_PULLDOWN | MUX_MODE7)
-			AM33XX_IOPAD(0x914, PIN_INPUT_PULLDOWN | MUX_MODE7)
-			AM33XX_IOPAD(0x918, PIN_INPUT_PULLDOWN | MUX_MODE7)
-			AM33XX_IOPAD(0x924, PIN_INPUT_PULLDOWN | MUX_MODE7)
-			AM33XX_IOPAD(0x928, PIN_INPUT_PULLDOWN | MUX_MODE7)
-			AM33XX_IOPAD(0x93c, PIN_INPUT_PULLDOWN | MUX_MODE7)
-			AM33XX_IOPAD(0x940, PIN_INPUT_PULLDOWN | MUX_MODE7)
-			AM33XX_IOPAD(0x944, PIN_INPUT_PULLDOWN | MUX_MODE7)
-		>;
-	};
-
-	davinci_mdio_default: davinci_mdio_default {
-		pinctrl-single,pins = <
-			/* mdio_data.mdio_data */
-			AM33XX_IOPAD(0x948, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)
-			/* mdio_clk.mdio_clk */
-			AM33XX_IOPAD(0x94c, PIN_OUTPUT_PULLUP | MUX_MODE0)
-		>;
-	};
-
-	davinci_mdio_sleep: davinci_mdio_sleep {
-		pinctrl-single,pins = <
-			/* MDIO reset value */
-			AM33XX_IOPAD(0x948, PIN_INPUT_PULLDOWN | MUX_MODE7)
-			AM33XX_IOPAD(0x94c, PIN_INPUT_PULLDOWN | MUX_MODE7)
-		>;
-	};
-
 	nandflash_pins: nandflash_pins {
 		pinctrl-single,pins = <
 			AM33XX_IOPAD(0x800, PIN_INPUT_PULLDOWN | MUX_MODE0)	/* gpmc_ad0.gpmc_ad0 */
@@ -168,22 +122,6 @@
 	};
 };
 
-/* Ethernet MAC */
-&mac {
-	slaves = <1>;
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&cpsw_default>;
-	pinctrl-1 = <&cpsw_sleep>;
-	status = "okay";
-};
-
-&davinci_mdio {
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&davinci_mdio_default>;
-	pinctrl-1 = <&davinci_mdio_sleep>;
-	status = "okay";
-};
-
 /* NAND Flash */
 &elm {
 	status = "okay";
-- 
2.8.0

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[PATCH 3/3] ARM: dts: am335x-chilisom: Enable poweroff PMIC sequence using RTC signal

[Marcin Niestroj]

ChiliSOM has TPS65217's PWR_EN pin connected to AM335x PMIC_POWER_EN
pin. Processor's PMIC_POWER_EN is controlled by it's internal RTC, hence
RTC subsystem is responsible for proper board poweroff sequence.

This change enables complete poweroff sequence for ChiliBoard, switching
PMIC's state from ACTIVE to SLEEP.

Signed-off-by: Marcin Niestroj <m.niestroj-z3quKL4iOrmQ6ZAhV5LmOA@public.gmane.org>
---
 arch/arm/boot/dts/am335x-chilisom.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-chilisom.dtsi b/arch/arm/boot/dts/am335x-chilisom.dtsi
index 5276399..bc0880d 100644
--- a/arch/arm/boot/dts/am335x-chilisom.dtsi
+++ b/arch/arm/boot/dts/am335x-chilisom.dtsi
@@ -122,6 +122,10 @@
 	};
 };
 
+&rtc {
+	system-power-controller;
+};
+
 /* NAND Flash */
 &elm {
 	status = "okay";
-- 
2.8.0

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Re: [PATCH 0/3] ARM: dts: am335x-chili*: Move nodes to proper place and add poweroff

[Tony Lindgren]

* Marcin Niestroj <m.niestroj-z3quKL4iOrmQ6ZAhV5LmOA@public.gmane.org> [160413 01:45]:
> Hi,
> 
> These patches move board-specific device-tree nodes from ChiliSOM to
> ChiliBoard dts files. These include uart and ethernet configuration.
> Additionally add poweroff support for all ChiliSOM devices.
> 
> Developed and tested on ChiliBoard using v4.6-rc3.

Applying into omap-for-v4.7/dt thanks.

Tony
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