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|
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>;
+ };
+};
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