Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 172 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt
new file mode 100644
index 000000000..3b7266c7c
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt
@@ -0,0 +1,172 @@
+======================
+Aspeed Pin Controllers
+======================
+
+The Aspeed SoCs vary in functionality inside a generation but have a common mux
+device register layout.
+
+Required properties for g4:
+- compatible : 			Should be one of the following:
+				"aspeed,ast2400-pinctrl"
+				"aspeed,g4-pinctrl"
+
+Required properties for g5:
+- compatible : 			Should be one of the following:
+				"aspeed,ast2500-pinctrl"
+				"aspeed,g5-pinctrl"
+
+- aspeed,external-nodes:	A cell of phandles to external controller nodes:
+				0: compatible with "aspeed,ast2500-gfx", "syscon"
+				1: compatible with "aspeed,ast2500-lhc", "syscon"
+
+The pin controller node should be the child of a syscon node with the required
+property:
+
+- compatible : 		Should be one of the following:
+			"aspeed,ast2400-scu", "syscon", "simple-mfd"
+			"aspeed,g4-scu", "syscon", "simple-mfd"
+			"aspeed,ast2500-scu", "syscon", "simple-mfd"
+			"aspeed,g5-scu", "syscon", "simple-mfd"
+
+Refer to the the bindings described in
+Documentation/devicetree/bindings/mfd/syscon.txt
+
+Subnode Format
+==============
+
+The required properties of pinmux child nodes are:
+- function: the mux function to select
+- groups  : the list of groups to select with this function
+
+Required properties of pinconf child nodes are:
+- groups: A list of groups to select (either this or "pins" must be
+          specified)
+- pins  : A list of ball names as strings, eg "D14" (either this or "groups"
+          must be specified)
+
+Optional properties of pinconf child nodes are:
+- bias-disable  : disable any pin bias
+- bias-pull-down: pull down the pin
+- drive-strength: sink or source at most X mA
+
+Definitions are as specified in
+Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt, with any
+further limitations as described above.
+
+For pinmux, each mux function has only one associated pin group. Each group is
+named by its function. The following values for the function and groups
+properties are supported:
+
+aspeed,ast2400-pinctrl, aspeed,g4-pinctrl:
+
+ACPI ADC0 ADC1 ADC10 ADC11 ADC12 ADC13 ADC14 ADC15 ADC2 ADC3 ADC4 ADC5 ADC6
+ADC7 ADC8 ADC9 BMCINT DDCCLK DDCDAT EXTRST FLACK FLBUSY FLWP GPID GPID0 GPID2
+GPID4 GPID6 GPIE0 GPIE2 GPIE4 GPIE6 I2C10 I2C11 I2C12 I2C13 I2C14 I2C3 I2C4
+I2C5 I2C6 I2C7 I2C8 I2C9 LPCPD LPCPME LPCRST LPCSMI MAC1LINK MAC2LINK MDIO1
+MDIO2 NCTS1 NCTS2 NCTS3 NCTS4 NDCD1 NDCD2 NDCD3 NDCD4 NDSR1 NDSR2 NDSR3 NDSR4
+NDTR1 NDTR2 NDTR3 NDTR4 NDTS4 NRI1 NRI2 NRI3 NRI4 NRTS1 NRTS2 NRTS3 OSCCLK PWM0
+PWM1 PWM2 PWM3 PWM4 PWM5 PWM6 PWM7 RGMII1 RGMII2 RMII1 RMII2 ROM16 ROM8 ROMCS1
+ROMCS2 ROMCS3 ROMCS4 RXD1 RXD2 RXD3 RXD4 SALT1 SALT2 SALT3 SALT4 SD1 SD2 SGPMCK
+SGPMI SGPMLD SGPMO SGPSCK SGPSI0 SGPSI1 SGPSLD SIOONCTRL SIOPBI SIOPBO SIOPWREQ
+SIOPWRGD SIOS3 SIOS5 SIOSCI SPI1 SPI1DEBUG SPI1PASSTHRU SPICS1 TIMER3 TIMER4
+TIMER5 TIMER6 TIMER7 TIMER8 TXD1 TXD2 TXD3 TXD4 UART6 USB11D1 USB11H2 USB2D1
+USB2H1 USBCKI VGABIOS_ROM VGAHS VGAVS VPI18 VPI24 VPI30 VPO12 VPO24 WDTRST1
+WDTRST2
+
+aspeed,ast2500-pinctrl, aspeed,g5-pinctrl:
+
+ACPI ADC0 ADC1 ADC10 ADC11 ADC12 ADC13 ADC14 ADC15 ADC2 ADC3 ADC4 ADC5 ADC6
+ADC7 ADC8 ADC9 BMCINT DDCCLK DDCDAT ESPI FWSPICS1 FWSPICS2 GPID0 GPID2 GPID4
+GPID6 GPIE0 GPIE2 GPIE4 GPIE6 I2C10 I2C11 I2C12 I2C13 I2C14 I2C3 I2C4 I2C5 I2C6
+I2C7 I2C8 I2C9 LAD0 LAD1 LAD2 LAD3 LCLK LFRAME LPCHC LPCPD LPCPLUS LPCPME
+LPCRST LPCSMI LSIRQ MAC1LINK MAC2LINK MDIO1 MDIO2 NCTS1 NCTS2 NCTS3 NCTS4 NDCD1
+NDCD2 NDCD3 NDCD4 NDSR1 NDSR2 NDSR3 NDSR4 NDTR1 NDTR2 NDTR3 NDTR4 NRI1 NRI2
+NRI3 NRI4 NRTS1 NRTS2 NRTS3 NRTS4 OSCCLK PEWAKE PNOR PWM0 PWM1 PWM2 PWM3 PWM4
+PWM5 PWM6 PWM7 RGMII1 RGMII2 RMII1 RMII2 RXD1 RXD2 RXD3 RXD4 SALT1 SALT10
+SALT11 SALT12 SALT13 SALT14 SALT2 SALT3 SALT4 SALT5 SALT6 SALT7 SALT8 SALT9
+SCL1 SCL2 SD1 SD2 SDA1 SDA2 SGPS1 SGPS2 SIOONCTRL SIOPBI SIOPBO SIOPWREQ
+SIOPWRGD SIOS3 SIOS5 SIOSCI SPI1 SPI1CS1 SPI1DEBUG SPI1PASSTHRU SPI2CK SPI2CS0
+SPI2CS1 SPI2MISO SPI2MOSI TIMER3 TIMER4 TIMER5 TIMER6 TIMER7 TIMER8 TXD1 TXD2
+TXD3 TXD4 UART6 USB11BHID USB2AD USB2AH USB2BD USB2BH USBCKI VGABIOSROM VGAHS
+VGAVS VPI24 VPO WDTRST1 WDTRST2
+
+Examples
+========
+
+g4 Example
+----------
+
+syscon: scu@1e6e2000 {
+	compatible = "aspeed,ast2400-scu", "syscon", "simple-mfd";
+	reg = <0x1e6e2000 0x1a8>;
+
+	pinctrl: pinctrl {
+		compatible = "aspeed,g4-pinctrl";
+
+		pinctrl_i2c3_default: i2c3_default {
+			function = "I2C3";
+			groups = "I2C3";
+		};
+
+		pinctrl_gpioh0_unbiased_default: gpioh0 {
+			pins = "A8";
+			bias-disable;
+		};
+	};
+};
+
+g5 Example
+----------
+
+ahb {
+	apb {
+		syscon: scu@1e6e2000 {
+			compatible = "aspeed,ast2500-scu", "syscon", "simple-mfd";
+			reg = <0x1e6e2000 0x1a8>;
+
+			pinctrl: pinctrl {
+				compatible = "aspeed,g5-pinctrl";
+				aspeed,external-nodes = <&gfx &lhc>;
+
+				pinctrl_i2c3_default: i2c3_default {
+					function = "I2C3";
+					groups = "I2C3";
+				};
+
+				pinctrl_gpioh0_unbiased_default: gpioh0 {
+					pins = "A18";
+					bias-disable;
+				};
+			};
+		};
+
+		gfx: display@1e6e6000 {
+			compatible = "aspeed,ast2500-gfx", "syscon";
+			reg = <0x1e6e6000 0x1000>;
+		};
+	};
+
+	lpc: lpc@1e789000 {
+		compatible = "aspeed,ast2500-lpc", "simple-mfd";
+		reg = <0x1e789000 0x1000>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x1e789000 0x1000>;
+
+		lpc_host: lpc-host@80 {
+			compatible = "aspeed,ast2500-lpc-host", "simple-mfd", "syscon";
+			reg = <0x80 0x1e0>;
+			reg-io-width = <4>;
+
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0x0 0x80 0x1e0>;
+
+			lhc: lhc@20 {
+			       compatible = "aspeed,ast2500-lhc";
+			       reg = <0x20 0x24 0x48 0x8>;
+			};
+		};
+	};
+};