Subject: [PATCH 2/4] ARM: dts: Add basic dm816x device tree configuration

From: [email-masked] (Tony Lindgren)
Date: Thu, 15 Jan 2015 14:59:16 -0800

* Suman Anna <[email-masked]> [150115 13:26]:
> On 01/13/2015 05:37 PM, Tony Lindgren wrote:
> > +
> > +		mailbox: mailbox at 480c8000 {
> > +			compatible = "ti,omap3-mailbox";
> 
> The Mailbox IP is actually more like that of OMAP4, so the correct one
> would be "ti,omap4-mailbox"
> 
> > +			reg = <0x480c8000 0x2000>;
> > +			interrupts = <77>;
> > +			ti,hwmods = "mailbox";
> > +			ti,mbox-num-users = <4>;
> > +			ti,mbox-num-fifos = <8>;
> This should be 12
> 
> > +			mbox_wkupm3: wkup_m3 {
> > +				ti,mbox-tx = <0 0 0>;
> > +				ti,mbox-rx = <0 0 3>;
> > +			};
> 
> This may have been copied from AM335, so is incorrect. You are better
> off starting with one for DSP instead of above, below are taken from the
> corresponding SysLink release associated with above PSP release
> 			mbox_dsp: mbox_dsp {
> 				ti,mbox-tx = <3 0 0>;
> 				ti,mbox-rx = <0 0 0>;
> 			};

Thanks for checking it! Yes I just copied the entry from am33xx.dtsi
and forgot to even check it.

The IO ranges, interrupts and dma channels I generated with printk
from a booted PSP kernel so those should be mostly correct. But
everything else is prone to cut and paste type errors.

For reference, the devices I've confirmed to work so far are:

- intc
- timers
- gpmc
- i2c
- ethernet and mdio
- mmc
- edma
- uart

Updated patch below with the mailbox fixed.

Regards,

Tony

8< ----------------
From: Tony Lindgren <[email-masked]>
Date: Wed, 14 Jan 2015 17:45:22 -0800
Subject: [PATCH] ARM: dts: Add basic dm816x device tree configuration

Similar to other omap variants, let's add dm816x support.

Note that this is based on generated data from the
TI81XX-LINUX-PSP-04.04.00.02 patches published at:

http://downloads.ti.com/dsps/dsps_public_sw/psp/LinuxPSP/TI81XX_04_04/04_04_00_02/index_FDS.html

I've verified the basic functionality, but have not been
able to test all the devices on dm8168-evm.

Cc: Brian Hutchinson <[email-masked]>
Signed-off-by: Tony Lindgren <[email-masked]>

--- /dev/null
+++ b/arch/arm/boot/dts/dm816x.dtsi
@@ -0,0 +1,374 @@
+/*
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+
+#include "skeleton.dtsi"
+
+/ {
+	compatible = "ti,dm816";
+	interrupt-parent = <&intc>;
+
+	aliases {
+		i2c0 = &i2c1;
+		i2c1 = &i2c2;
+		serial0 = &uart1;
+		serial1 = &uart2;
+		serial2 = &uart3;
+		ethernet0 = &eth0;
+		ethernet1 = &eth1;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		cpu at 0 {
+			compatible = "arm,cortex-a8";
+			device_type = "cpu";
+			reg = <0>;
+		};
+	};
+
+	pmu {
+		compatible = "arm,cortex-a8-pmu";
+		interrupts = <3>;
+	};
+
+	/*
+	 * The soc node represents the soc top level view. It is used for IPs
+	 * that are not memory mapped in the MPU view or for the MPU itself.
+	 */
+	soc {
+		compatible = "ti,omap-infra";
+		mpu {
+			compatible = "ti,omap3-mpu";
+			ti,hwmods = "mpu";
+		};
+	};
+
+	/*
+	 * XXX: Use a flat representation of the dm816x interconnect.
+	 * The real dm816x interconnect network is quite complex. Since
+	 * it will not bring real advantage to represent that in DT
+	 * for the moment, just use a fake OCP bus entry to represent
+	 * the whole bus hierarchy.
+	 */
+	ocp {
+		compatible = "ti,omap3-l3-smx", "simple-bus";
+		reg = <0x44000000 0x10000>;
+		interrupts = <9 10>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+		ti,hwmods = "l3_main";
+
+		prcm: prcm at 48180000 {
+			compatible = "ti,dm816-prcm";
+			reg = <0x48180000 0x4000>;
+
+			prcm_clocks: clocks {
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			prcm_clockdomains: clockdomains {
+			};
+		};
+
+		scrm: scrm at 48140000 {
+			compatible = "ti,dm816-scrm";
+			reg = <0x48140000 0x21000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0 0x48140000 0x21000>;
+
+			scrm_clocks: clocks {
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			scrm_clockdomains: clockdomains {
+			};
+		};
+
+		cm: syscon at 44e10000 {
+			compatible = "ti,am33xx-controlmodule", "syscon";
+			reg = <0x44e10000 0x800>;
+		};
+
+		edma: edma at 49000000 {
+			compatible = "ti,edma3";
+			ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2", "tptc3";
+			reg =   <0x49000000 0x10000>,
+			        <0x44e10f90 0x40>;
+			interrupts = <12 13 14>;
+			#dma-cells = <1>;
+		};
+
+		elm: elm at 48080000 {
+			compatible = "ti,816-elm";
+			ti,hwmods = "elm";
+			reg = <0x48080000 0x2000>;
+			interrupts = <4>;
+		};
+
+		gpio1: gpio at 48032000 {
+			compatible = "ti,omap3-gpio";
+			ti,hwmods = "gpio1";
+			reg = <0x48032000 0x1000>;
+			interrupts = <97>;
+		};
+
+		gpio2: gpio at 4804c000 {
+			compatible = "ti,omap3-gpio";
+			ti,hwmods = "gpio2";
+			reg = <0x4804c000 0x1000>;
+			interrupts = <99>;
+		};
+
+		gpmc: gpmc at 50000000 {
+			compatible = "ti,am3352-gpmc";
+			ti,hwmods = "gpmc";
+			reg = <0x50000000 0x2000>;
+			#address-cells = <2>;
+			#size-cells = <1>;
+			interrupts = <100>;
+			gpmc,num-cs = <6>;
+			gpmc,num-waitpins = <2>;
+		};
+
+		i2c1: i2c at 48028000 {
+			compatible = "ti,omap4-i2c";
+			ti,hwmods = "i2c1";
+			reg = <0x48028000 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			interrupts = <70>;
+			dmas = <&edma 58 &edma 59>;
+			dma-names = "tx", "rx";
+		};
+
+		i2c2: i2c at 4802a000 {
+			compatible = "ti,omap4-i2c";
+			ti,hwmods = "i2c2";
+			reg = <0x4802a000 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			interrupts = <71>;
+			dmas = <&edma 60 &edma 61>;
+			dma-names = "tx", "rx";
+		};
+
+		intc: interrupt-controller at 48200000 {
+			compatible = "ti,dm816-intc";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			reg = <0x48200000 0x1000>;
+		};
+
+		mailbox: mailbox at 480c8000 {
+			compatible = "ti,omap4-mailbox";
+			reg = <0x480c8000 0x2000>;
+			interrupts = <77>;
+			ti,hwmods = "mailbox";
+			ti,mbox-num-users = <4>;
+			ti,mbox-num-fifos = <12>;
+			mbox_dsp: mbox_dsp {
+				ti,mbox-tx = <3 0 0>;
+				ti,mbox-rx = <0 0 0>;
+			};
+		};
+
+		mdio: mdio at 4a100800 {
+			compatible = "ti,davinci_mdio";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x4a100800 0x100>;
+			ti,hwmods = "davinci_mdio";
+			bus_freq = <1000000>;
+			phy0: ethernet-phy at 0 {
+				reg = <1>;
+			};
+			phy1: ethernet-phy at 1 {
+				reg = <2>;
+			};
+		};
+
+		eth0: ethernet at 4a100000 {
+			compatible = "ti,dm816-emac";
+			ti,hwmods = "emac0";
+			reg = <0x4a100000 0x800
+			       0x4a100900 0x3700>;
+			clocks = <&sysclk24_ck>;
+			ti,davinci-ctrl-reg-offset = <0>;
+			ti,davinci-ctrl-mod-reg-offset = <0x900>;
+			ti,davinci-ctrl-ram-offset = <0x2000>;
+			ti,davinci-ctrl-ram-size = <0x2000>;
+			interrupts = <40 41 42 43>;
+			phy-handle = <&phy0>;
+		};
+
+		eth1: ethernet at 4a120000 {
+			compatible = "ti,dm816-emac";
+			ti,hwmods = "emac1";
+			reg = <0x4a120000 0x4000>;
+			clocks = <&sysclk24_ck>;
+			ti,davinci-ctrl-reg-offset = <0>;
+			ti,davinci-ctrl-mod-reg-offset = <0x900>;
+			ti,davinci-ctrl-ram-offset = <0x2000>;
+			ti,davinci-ctrl-ram-size = <0x2000>;
+			interrupts = <44 45 46 47>;
+			phy-handle = <&phy1>;
+		};
+
+		mcspi1: spi at 48030000 {
+			compatible = "ti,omap3-mcspi";
+			reg = <0x48030000 0x2000>;
+			interrupts = <65>;
+			ti,spi-num-cs = <2>;
+			ti,hwmods = "mcspi1";
+			dmas = <&edma 16 &edma 17
+				&edma 18 &edma 19>;
+			dma-names = "tx0", "rx0", "tx1", "rx1";
+		};
+
+		mmc1: mmc at 48060000 {
+			compatible = "ti,omap4-hsmmc";
+			reg = <0x48060000 0x11000>;
+			ti,hwmods = "mmc1";
+			interrupts = <64>;
+			dmas = <&edma 24 &edma 25>;
+			dma-names = "tx", "rx";
+		};
+
+		timer1: timer at 4802e000 {
+			compatible = "ti,dm816-timer";
+			reg = <0x4802e000 0x2000>;
+			interrupts = <67>;
+			ti,hwmods = "timer1";
+			ti,timer-alwon;
+		};
+
+		timer2: timer at 48040000 {
+			compatible = "ti,dm816-timer";
+			reg = <0x48040000 0x2000>;
+			interrupts = <68>;
+			ti,hwmods = "timer2";
+		};
+
+		timer3: timer at 48042000 {
+			compatible = "ti,dm816-timer";
+			reg = <0x48042000 0x2000>;
+			interrupts = <69>;
+			ti,hwmods = "timer3";
+		};
+
+		timer4: timer at 48044000 {
+			compatible = "ti,dm816-timer";
+			reg = <0x48044000 0x2000>;
+			interrupts = <92>;
+			ti,hwmods = "timer4";
+		};
+
+		timer5: timer at 48046000 {
+			compatible = "ti,dm816-timer";
+			reg = <0x48046000 0x2000>;
+			interrupts = <93>;
+			ti,hwmods = "timer5";
+		};
+
+		timer6: timer at 48048000 {
+			compatible = "ti,dm816-timer";
+			reg = <0x48048000 0x2000>;
+			interrupts = <94>;
+			ti,hwmods = "timer6";
+		};
+
+		timer7: timer at 4804a000 {
+			compatible = "ti,dm816-timer";
+			reg = <0x4804a000 0x2000>;
+			interrupts = <95>;
+			ti,hwmods = "timer7";
+		};
+
+		uart1: uart at 48020000 {
+			compatible = "ti,omap3-uart";
+			ti,hwmods = "uart1";
+			reg = <0x48020000 0x2000>;
+			clock-frequency = <48000000>;
+			interrupts = <72>;
+			dmas = <&edma 26 &edma 27>;
+			dma-names = "tx", "rx";
+		};
+
+		uart2: uart at 48022000 {
+			compatible = "ti,omap3-uart";
+			ti,hwmods = "uart2";
+			reg = <0x48022000 0x2000>;
+			clock-frequency = <48000000>;
+			interrupts = <73>;
+			dmas = <&edma 28 &edma 29>;
+			dma-names = "tx", "rx";
+		};
+
+		uart3: uart at 48024000 {
+			compatible = "ti,omap3-uart";
+			ti,hwmods = "uart3";
+			reg = <0x48024000 0x2000>;
+			clock-frequency = <48000000>;
+			interrupts = <74>;
+			dmas = <&edma 30 &edma 31>;
+			dma-names = "tx", "rx";
+		};
+
+		/* NOTE: USB needs a transceiver driver for phys to work */
+		usb: usb_otg_hs at 47401000 {
+			compatible = "ti,am33xx-usb";
+			reg = <0x47401000 0x400000>;
+			ranges;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ti,hwmods = "usb_otg_hs";
+
+			usb0: usb at 47401000 {
+				compatible = "ti,musb-am33xx";
+				reg = <0x47401400 0x400
+				       0x47401000 0x200>;
+				reg-names = "mc", "control";
+				interrupts = <18>;
+				interrupt-names = "mc";
+				dr_mode = "otg";
+				mentor,multipoint = <1>;
+				mentor,num-eps = <16>;
+				mentor,ram-bits = <12>;
+				mentor,power = <500>;
+			};
+
+			usb1: usb at 47401800 {
+				compatible = "ti,musb-am33xx";
+				status = "disabled";
+				reg = <0x47401c00 0x400
+				       0x47401800 0x200>;
+				reg-names = "mc", "control";
+				interrupts = <19>;
+				interrupt-names = "mc";
+				dr_mode = "otg";
+				mentor,multipoint = <1>;
+				mentor,num-eps = <16>;
+				mentor,ram-bits = <12>;
+				mentor,power = <500>;
+			};
+		};
+
+		wd_timer2: wd_timer at 480c2000 {
+			compatible = "ti,omap3-wdt";
+			ti,hwmods = "wd_timer";
+			reg = <0x480c2000 0x1000>;
+			interrupts = <0>;
+		};
+	};
+};
+