path: root/recipes-kernel/linux/linux-at91-4.9.87/mtcap/linux-4.9-mtcap-device-tree.patch

diff -Naru linux-4.9.87.orig/arch/arm/boot/dts/at91sam9x5cm.dtsi linux-4.9.87/arch/arm/boot/dts/at91sam9x5cm.dtsi
--- linux-4.9.87.orig/arch/arm/boot/dts/at91sam9x5cm.dtsi	2019-01-24 11:31:55.474263111 -0600
+++ linux-4.9.87/arch/arm/boot/dts/at91sam9x5cm.dtsi	2019-01-24 12:23:10.802172067 -0600
@@ -43,48 +43,8 @@
 			atmel,has-pmecc;	/* Enable PMECC */
 			atmel,pmecc-cap = <2>;
 			atmel,pmecc-sector-size = <512>;
-			nand-on-flash-bbt;
+			/* nand-on-flash-bbt; */
 			status = "okay";
-
-			at91bootstrap@0 {
-				label = "at91bootstrap";
-				reg = <0x0 0x40000>;
-			};
-
-			uboot@40000 {
-				label = "u-boot";
-				reg = <0x40000 0x80000>;
-			};
-
-			ubootenv@c0000 {
-				label = "U-Boot Env";
-				reg = <0xc0000 0x140000>;
-			};
-
-			kernel@200000 {
-				label = "kernel";
-				reg = <0x200000 0x600000>;
-			};
-
-			rootfs@800000 {
-				label = "rootfs";
-				reg = <0x800000 0x1f800000>;
-			};
-		};
-	};
-
-	leds {
-		compatible = "gpio-leds";
-
-		pb18 {
-			label = "pb18";
-			gpios = <&pioB 18 GPIO_ACTIVE_LOW>;
-			linux,default-trigger = "heartbeat";
-		};
-
-		pd21 {
-			label = "pd21";
-			gpios = <&pioD 21 GPIO_ACTIVE_HIGH>;
 		};
 	};
 
@@ -96,5 +56,4 @@
 		pinctrl-0 = <&pinctrl_1wire_cm>;
 		status = "okay";
 	};
-
 };
diff -Naru linux-4.9.87.orig/arch/arm/boot/dts/at91sam9x5.dtsi linux-4.9.87/arch/arm/boot/dts/at91sam9x5.dtsi
--- linux-4.9.87.orig/arch/arm/boot/dts/at91sam9x5.dtsi	2019-01-24 11:31:55.590263108 -0600
+++ linux-4.9.87/arch/arm/boot/dts/at91sam9x5.dtsi	2019-01-24 12:23:10.802172067 -0600
@@ -32,9 +32,6 @@
 		gpio3 = &pioD;
 		tcb0 = &tcb0;
 		tcb1 = &tcb1;
-		i2c0 = &i2c0;
-		i2c1 = &i2c1;
-		i2c2 = &i2c2;
 		ssc0 = &ssc0;
 		pwm0 = &pwm0;
 	};
@@ -963,50 +960,7 @@
 				status = "disabled";
 			};
 
-			i2c0: i2c@f8010000 {
-				compatible = "atmel,at91sam9x5-i2c";
-				reg = <0xf8010000 0x100>;
-				interrupts = <9 IRQ_TYPE_LEVEL_HIGH 6>;
-				dmas = <&dma0 1 AT91_DMA_CFG_PER_ID(7)>,
-				       <&dma0 1 AT91_DMA_CFG_PER_ID(8)>;
-				dma-names = "tx", "rx";
-				#address-cells = <1>;
-				#size-cells = <0>;
-				pinctrl-names = "default";
-				pinctrl-0 = <&pinctrl_i2c0>;
-				clocks = <&twi0_clk>;
-				status = "disabled";
-			};
-
-			i2c1: i2c@f8014000 {
-				compatible = "atmel,at91sam9x5-i2c";
-				reg = <0xf8014000 0x100>;
-				interrupts = <10 IRQ_TYPE_LEVEL_HIGH 6>;
-				dmas = <&dma1 1 AT91_DMA_CFG_PER_ID(5)>,
-				       <&dma1 1 AT91_DMA_CFG_PER_ID(6)>;
-				dma-names = "tx", "rx";
-				#address-cells = <1>;
-				#size-cells = <0>;
-				pinctrl-names = "default";
-				pinctrl-0 = <&pinctrl_i2c1>;
-				clocks = <&twi1_clk>;
-				status = "disabled";
-			};
-
-			i2c2: i2c@f8018000 {
-				compatible = "atmel,at91sam9x5-i2c";
-				reg = <0xf8018000 0x100>;
-				interrupts = <11 IRQ_TYPE_LEVEL_HIGH 6>;
-				dmas = <&dma0 1 AT91_DMA_CFG_PER_ID(9)>,
-				       <&dma0 1 AT91_DMA_CFG_PER_ID(10)>;
-				dma-names = "tx", "rx";
-				#address-cells = <1>;
-				#size-cells = <0>;
-				pinctrl-names = "default";
-				pinctrl-0 = <&pinctrl_i2c2>;
-				clocks = <&twi2_clk>;
-				status = "disabled";
-			};
+			/* /delete_node/ command does not work. */
 
 			uart0: serial@f8040000 {
 				compatible = "atmel,at91sam9260-usart";
diff -Naru linux-4.9.87.orig/arch/arm/boot/dts/at91sam9x5ek.dtsi linux-4.9.87/arch/arm/boot/dts/at91sam9x5ek.dtsi
--- linux-4.9.87.orig/arch/arm/boot/dts/at91sam9x5ek.dtsi	2019-01-24 11:31:55.590263108 -0600
+++ linux-4.9.87/arch/arm/boot/dts/at91sam9x5ek.dtsi	2019-01-24 12:23:10.802172067 -0600
@@ -25,23 +25,11 @@
 					&pinctrl_mmc0_slot0_clk_cmd_dat0
 					&pinctrl_mmc0_slot0_dat1_3>;
 				status = "okay";
+                                /* external micro SD slot */
 				slot@0 {
 					reg = <0>;
 					bus-width = <4>;
-					cd-gpios = <&pioD 15 GPIO_ACTIVE_HIGH>;
-				};
-			};
-
-			mmc1: mmc@f000c000 {
-				pinctrl-0 = <
-					&pinctrl_board_mmc1
-					&pinctrl_mmc1_slot0_clk_cmd_dat0
-					&pinctrl_mmc1_slot0_dat1_3>;
-				status = "okay";
-				slot@0 {
-					reg = <0>;
-					bus-width = <4>;
-					cd-gpios = <&pioD 14 GPIO_ACTIVE_HIGH>;
+					cd-gpios = <&pioA 1 GPIO_ACTIVE_HIGH>;
 				};
 			};
 
@@ -58,25 +46,12 @@
 			usb2: gadget@f803c000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&pinctrl_board_usb2>;
-				atmel,vbus-gpio = <&pioB 16 GPIO_ACTIVE_HIGH>;
-				status = "okay";
-			};
-
-			i2c0: i2c@f8010000 {
-				status = "okay";
-
-				wm8731: wm8731@1a {
-					compatible = "wm8731";
-					reg = <0x1a>;
-				};
-			};
-
-			adc0: adc@f804c000 {
-				atmel,adc-ts-wires = <4>;
-				atmel,adc-ts-pressure-threshold = <10000>;
+				/* atmel,vbus-gpio = <&pioB 16 GPIO_ACTIVE_HIGH>;		mtcdt: no vbus-gpio */
 				status = "okay";
 			};
 
+                        /* A/D convertor is unusable on Conduit */
+                        
 			pinctrl@fffff400 {
 				camera_sensor {
 					pinctrl_pck0_as_isi_mck: pck0_as_isi_mck-0 {
@@ -118,7 +93,7 @@
 			};
 
 			spi0: spi@f0000000 {
-				status = "disabled";	/* conflict with mmc1 */
+                                status = "okay";
 				cs-gpios = <&pioA 14 0>, <0>, <0>, <0>;
 				m25p80@0 {
 					compatible = "atmel,at25df321a";
@@ -131,37 +106,20 @@
 				status = "okay";
 			};
 
-			ssc0: ssc@f0010000 {
-				status = "okay";
-			};
 		};
 
 		usb0: ohci@00600000 {
 			status = "okay";
 			num-ports = <3>;
-			atmel,vbus-gpio = <0 /* &pioD 18 GPIO_ACTIVE_LOW *//* Activate to have access to port A */
-					   &pioD 19 GPIO_ACTIVE_LOW
-					   &pioD 20 GPIO_ACTIVE_LOW
-					  >;
+			//mtcdt: no vbus-gpio
+			// atmel,vbus-gpio = <0 /* &pioD 18 GPIO_ACTIVE_LOW *//* Activate to have access to port A */
+			//		   &pioD 19 GPIO_ACTIVE_LOW
+			//		   &pioD 20 GPIO_ACTIVE_LOW
+			//		  >;
 		};
 
 		usb1: ehci@00700000 {
 			status = "okay";
 		};
 	};
-
-	sound {
-		compatible = "atmel,sam9x5-wm8731-audio";
-
-		atmel,model = "wm8731 @ AT91SAM9X5EK";
-
-		atmel,audio-routing =
-			"Headphone Jack", "RHPOUT",
-			"Headphone Jack", "LHPOUT",
-			"LLINEIN", "Line In Jack",
-			"RLINEIN", "Line In Jack";
-
-		atmel,ssc-controller = <&ssc0>;
-		atmel,audio-codec = <&wm8731>;
-	};
 };
diff -Naru linux-4.9.87.orig/arch/arm/boot/dts/Makefile linux-4.9.87/arch/arm/boot/dts/Makefile
--- linux-4.9.87.orig/arch/arm/boot/dts/Makefile	2019-01-24 11:31:55.590263108 -0600
+++ linux-4.9.87/arch/arm/boot/dts/Makefile	2019-01-24 12:23:10.802172067 -0600
@@ -43,7 +43,8 @@
 	at91sam9g25ek.dtb \
 	at91sam9g35ek.dtb \
 	at91sam9x25ek.dtb \
-	at91sam9x35ek.dtb
+	at91sam9x35ek.dtb \
+	mtcap.dtb
 dtb-$(CONFIG_SOC_SAM_V7) += \
 	at91-kizbox2.dtb \
 	at91-sama5d2_ptc_ek.dtb \
===================================================================================================
 The dts file contains pinctrl to set the pull-up and pull-down features using the at91 pinctrl
 driver.  Because pins seemed to be assigned random values if not set, it is probably good
 to set any pin used by mts-io here, and it wouldn't be a bad idea to set unused pins as well,
 since they can be both pull-up and pull-down at the same time. 
 For future hardware revisions, it should be possible to overwrite the pinctrl with an overlay
 prior to loading the mts-io driver.

 To use the pinctrl, one must call platform_device_register() in the driver.
==================================================================================================
diff -Naru orig/arch/arm/boot/dts/mtcap.dts new/arch/arm/boot/dts/mtcap.dts
--- orig/arch/arm/boot/dts/mtcap.dts	1969-12-31 18:00:00.000000000 -0600
+++ new/arch/arm/boot/dts/mtcap.dts	2020-09-23 17:17:22.979992310 -0500
@@ -0,0 +1,318 @@
+/*
+ * DTS file for Multi-Tech Systems MTCAP Hardware
+ *
+ * Copyright (C) 2019 by Multi-Tech Systems,
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+/dts-v1/;
+#include "at91sam9g25.dtsi"
+#include "at91sam9x5ek.dtsi"
+
+/ {
+	model = "Multi-Tech Systems MTCAP";
+	compatible = "atmel,at91sam9g25ek", "atmel,at91sam9x5ek", "atmel,at91sam9x5", "atmel,at91sam9";
+
+	chosen {
+		bootargs = "mem=256M console=ttyS0,115200 root=/dev/mtdblock8 ro rootfstype=jffs2";
+	};
+
+	aliases {
+		spi0 = "/ahb/apb/spi@f0000000";
+		ssc0 = "";
+		serial1 = "&uart0";
+		serial2 = "";
+		serial3 = "";
+		serial4 = "";
+	};
+
+	memory {
+		reg = <0x20000000 0x8000000>;
+	};
+
+	clocks {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		main_clock: clock@0 {
+			compatible = "atmel,osc", "fixed-clock";
+			clock-frequency = <12000000>;
+		};
+	};
+
+	ahb {
+		apb {
+			macb0: ethernet@f802c000 {
+				phy-mode = "rmii";
+				status = "okay";
+			};
+
+			mmc0: mmc@f0008000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <
+					/* &pinctrl_board_mmc0 */
+					&pinctrl_mmc0_slot0_clk_cmd_dat0
+					&pinctrl_mmc0_slot0_dat1_3>;
+				status = "okay";
+				slot@0 {
+					reg = <0>;
+					bus-width = <4>;
+				};
+			};
+
+			pinctrl@fffff400 {
+				mmc0 {
+					pinctrl_board_mmc0: mmc0-board {
+						atmel,pins =
+							<AT91_PIOA 4 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;  /* PA4 gpio pin pull up and deglitch - WIFI enable */
+					};
+				};
+
+				nand {
+					pinctrl_nand: nand-0 {
+						atmel,pins =
+							<AT91_PIOD 0 AT91_PERIPH_A AT91_PINCTRL_PULL_UP    /* PD0 periph A Read Enable */
+							AT91_PIOD 1 AT91_PERIPH_A AT91_PINCTRL_PULL_UP     /* PD1 periph A Write Enable */
+							AT91_PIOD 2 AT91_PERIPH_A AT91_PINCTRL_PULL_UP     /* PD2 periph A Address Latch Enable */
+							AT91_PIOD 3 AT91_PERIPH_A AT91_PINCTRL_PULL_UP     /* PD3 periph A Command Latch Enable */
+							AT91_PIOD 4 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP  /* PD4 gpio Chip Enable pin pull_up */
+							AT91_PIOC 16 AT91_PERIPH_GPIO AT91_PINCTRL_MULTI_DRIVE /* PC16 LED-CD (modem normally controls) */
+							AT91_PIOC 31 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP /* PC31 gpio RDY/BUSY pin pull_up */
+							AT91_PIOD 6 AT91_PERIPH_A AT91_PINCTRL_PULL_UP     /* PD6 periph A Data bit 0 */
+							AT91_PIOD 7 AT91_PERIPH_A AT91_PINCTRL_PULL_UP     /* PD7 periph A Data bit 1 */
+							AT91_PIOD 8 AT91_PERIPH_A AT91_PINCTRL_PULL_UP     /* PD8 periph A Data bit 2 */
+							AT91_PIOD 9 AT91_PERIPH_A AT91_PINCTRL_PULL_UP     /* PD9 periph A Data bit 3 */
+							AT91_PIOD 10 AT91_PERIPH_A AT91_PINCTRL_PULL_UP    /* PD10 periph A Data bit 4 */
+							AT91_PIOD 11 AT91_PERIPH_A AT91_PINCTRL_PULL_UP    /* PD11 periph A Data bit 5 */
+							AT91_PIOD 12 AT91_PERIPH_A AT91_PINCTRL_PULL_UP    /* PD12 periph A Data bit 6 */
+							AT91_PIOD 13 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;  /* PD13 periph A Data bit 7 */
+					};
+                                	/delete-node/ nand_16bits-0;
+				};
+
+				/*
+				 * Pin D21 will be left floating when the power goes off on the radio.
+				 * We need to pull it down to ensure it is low during radio power-off.
+                                 * pinctrl is loaded during the call to platform_device_register() in mts-io.
+                                 * If we need to customize this for various hardware revisions, these can
+                                 * be loaded as overlays prior to loading the mts-io module, overwriting the
+                                 * atmel,pins section.
+				 */
+				mts_io {
+					pinctrl_mts_io: mts_io-0 {
+						atmel,pins =
+							<AT91_PIOA 21 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP  /* PA21 GPIO pull-up radio-power */
+							AT91_PIOA 22 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP   /* PA22 GPIO pull-up radio-reset */
+							AT91_PIOD 21 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_DOWN>; /* PD21 GPIO pull-down radio-monitor */
+				                        output-high;
+		                               };
+				        pinctrl_mts_io_in: mts_io-1 {
+			                      atmel,pins =
+                          			       <AT91_PIOD 19 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;   /* PD19 GNSS Int */
+		                        };
+	                         	pinctrl_mts_io_gnss: mts_io-2 {
+			                      atmel,pins =
+			                          <AT91_PIOA 8  AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP     /* PA8 LORA_RESET */
+			                          AT91_PIOC 16 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP      /* PC16 ETH_NRST */
+			                          AT91_PIOD 15 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;    /* PD15 N_GNSS_RESET */
+			                      output-low;
+				        };
+				};
+			};
+
+			rtc@fffffeb0 {
+				status = "okay";
+			};
+
+			dbgu: serial@fffff200 {
+				status = "okay";
+				atmel,use-dma-rx;
+				atmel,use-dma-tx;
+			};
+
+			usb2: gadget@f803c000 {
+				atmel,vbus-gpio = <&pioB 16 GPIO_ACTIVE_HIGH>;
+				status = "okay";
+			};
+			watchdog@fffffe40 {
+				status = "okay";
+			};
+			/* uart0 is GNSS on MTCDTIP2, enabled by overlay */
+			uart0: serial@f8040000 {
+				status = "disabled";
+				atmel,use-dma-rx;
+				atmel,use-dma-tx;
+				/* Table 30-1 of the SAM9G25 datasheet specifies the dma channel numbers
+				 * for TWI0 (I2C).  Note that a channel number is a slot in a table
+				 * in the kernel when printed in the kernel log.  It has nothing to do
+				 * with the channel numbers specified here which correspond to the
+				 * SAM9G25 datasheet.
+				 * In atmel-dma.txt kernel documentation the SAM9G25 channel number
+				 * is referred to as:
+				 *     peripheral identifier for the hardware handshaking interface
+				 */
+				dmas = <&dma0 1 AT91_DMA_CFG_PER_ID(11)>,
+				       <&dma0 1 (AT91_DMA_CFG_PER_ID(12) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
+				dma-names = "tx", "rx";
+			};
+			spi@f0000000 {
+				status = "okay";
+				cs-gpios = <&pioA 7 0>, <&pioA 1 0>, <0>, <0>;
+				lora-spi@0 {
+					compatible = "mts,mtac";
+					spi-max-frequency = <2000000>;
+					reg = <0>;
+				};
+				lora-spi@1 {
+					compatible = "mts,mtac";
+					spi-max-frequency = <2000000>;
+					reg = <1>;
+				};
+                                /delete-node/ m25p80@0;
+			};
+
+			/delete-node/ ssc@f0010000;
+			/delete-node/ mmc@f0008000;
+			/delete-node/ mmc@f000c000;
+			/delete-node/ serial@f801c000;
+			/delete-node/ serial@f8020000;
+			/delete-node/ serial@f8024000;
+			/delete-node/ serial@f8024400;
+			/delete-node/ serial@f8028000;
+			/delete-node/ serial@f8044000;
+			/delete-node/ gadget@f803c000;
+			/delete-node/ adc@f804c000;
+			/delete-node/ spi@f0004000;
+		};
+
+		nand0: nand@40000000 {
+			nand-bus-width = <8>;
+			nand-ecc-mode = "hw";
+			atmel,has-pmecc;	/* Enable PMECC */
+			atmel,pmecc-sector-size = <512>;
+			status = "okay";
+			reg = < 0x40000000 0x10000000
+				0xffffe000 0x600    /* PMECC Registers */
+				0xffffe600 0x200    /* PMECC Error Location Registers */
+				0x00100000 0x100000 /* PMECC looup table in ROM code  */
+			      >;
+			atmel,pmecc-lookup-table-offset = <0x8000 0x10000>;
+			gpios = < &pioC 31 GPIO_ACTIVE_HIGH
+				  &pioD 4 GPIO_ACTIVE_HIGH
+				  0
+				>;
+			atmel,pmecc-cap = <4>;
+			atmel,nand-has-dma;
+
+			nand@0 {
+				label = "NANDFlash";
+				reg = <0x0 0x10000000>;
+			};
+			at91bootstrap@0 {
+				label = "at91bootstrap";
+				reg = <0x0 0x40000>;
+			};
+			uboot@40000 {
+				label = "u-Boot";
+				reg = <0x40000 0x80000>;
+			};
+			ubootconfig0@c0000 {
+				label = "u-Boot Config";
+				reg = <0xc0000 0xa0000>;
+			};
+			ubootconfig1@160000 {
+				label = "u-Boot Redundant Config";
+				reg = <0x160000 0xa0000>;
+			};
+			uImage@200000 {
+				label = "uImage";
+				reg = <0x200000 0x600000>;
+			};
+			config0@800000 {
+				label = "Config";
+				reg = <0x800000 0x800000>;
+			};
+			config1@1000000 {
+				label = "OEM Config";
+				reg = <0x1000000 0x800000>;
+			};
+			rootfs@1800000 {
+				label = "Rootfs";
+				reg = <0x1800000 0x8000000>;
+			};
+			user@9800000 {
+				label = "User data";
+				reg = <0x9800000 0x6800000>;
+			};
+		};
+
+		usb0: ohci@00600000 {
+			status = "okay";
+			num-ports = <3>;
+		};
+
+		usb1: ehci@00700000 {
+			status = "okay";
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		pc25 {
+			label = "led-status";
+			gpios = <&pioC 25 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "default-on";
+		};
+		pc15 {
+			label = "led-lora";
+			gpios = <&pioC 15 GPIO_ACTIVE_LOW>;
+		};
+		pc16 {
+			label = "led-cd";
+			gpios = <&pioC 16 GPIO_ACTIVE_LOW>;
+		};
+		pc20 {
+			label = "led-wifi";
+			gpios = <&pioC 20 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	/* GPS-PPS input on MTCDTIP2 - enabled by overlay*/
+	pps-0 {
+            compatible = "pps-gpio";
+            gpios = <&pioC 10 0>;
+            capture-clear;
+            status = "disabled";
+	};
+
+	i2c0: i2c@f8010000 {
+            compatible = "atmel,at91sam9x5-i2c";
+            reg = <0xf8010000 0x100>;
+            interrupts = <9 IRQ_TYPE_LEVEL_HIGH 6>;
+            dmas = <&dma0 1 AT91_DMA_CFG_PER_ID(7)>,
+		       <&dma0 1 AT91_DMA_CFG_PER_ID(8)>;
+            dma-names = "tx", "rx";
+            #address-cells = <1>;
+            #size-cells = <0>;
+            pinctrl-names = "default";
+            pinctrl-0 = <&pinctrl_i2c0>;
+            clocks = <&twi0_clk>;
+            status = "okay";
+            id_eeprom@56 {
+                compatible = "atmel,24c04";
+                reg = <0x56>;
+                pagesize = <16>;
+                    status = "okay";
+            };
+        };
+
+        mts-io-0 {
+            status = "okay";
+            compatible = "mts,mts-io";
+            pinctrl-names = "default";
+            pinctrl-0 = <&pinctrl_mts_io>;
+        };
+};