linux/arch/arm/boot/dts/r7s72100-gr-peach.dts
Jacopo Mondi 1126e108a3 ARM: dts: gr-peach: Enable ostm0 and ostm1 timers
Enable ostm0 and ostm1 timers to be used as clock source and clockevent
source. The timers provides greater accuracy than the already enabled
mtu2 one.

With these enabled:

clocksource: ostm: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 57352151442 ns
sched_clock: 32 bits at 33MHz, resolution 30ns, wraps every 64440619504ns
ostm: used for clocksource
ostm: used for clock events

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Suggested-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2017-10-12 13:51:25 +02:00

138 lines
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/*
* Device Tree Source for the GR-Peach board
*
* Copyright (C) 2017 Jacopo Mondi <jacopo+renesas@jmondi.org>
* Copyright (C) 2016 Renesas Electronics
*
* 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.
*/
/dts-v1/;
#include "r7s72100.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/r7s72100-pinctrl.h>
/ {
model = "GR-Peach";
compatible = "renesas,gr-peach", "renesas,r7s72100";
aliases {
serial0 = &scif2;
};
chosen {
bootargs = "ignore_loglevel rw root=/dev/mtdblock0";
stdout-path = "serial0:115200n8";
};
memory@20000000 {
device_type = "memory";
reg = <0x20000000 0x00a00000>;
};
lbsc {
#address-cells = <1>;
#size-cells = <1>;
};
flash@18000000 {
compatible = "mtd-rom";
probe-type = "map_rom";
reg = <0x18000000 0x00800000>;
bank-width = <4>;
device-width = <1>;
#address-cells = <1>;
#size-cells = <1>;
rootfs@600000 {
label = "rootfs";
reg = <0x00600000 0x00200000>;
};
};
leds {
status = "okay";
compatible = "gpio-leds";
led1 {
gpios = <&port6 12 GPIO_ACTIVE_HIGH>;
};
};
};
&pinctrl {
scif2_pins: serial2 {
/* P6_2 as RxD2; P6_3 as TxD2 */
pinmux = <RZA1_PINMUX(6, 2, 7)>, <RZA1_PINMUX(6, 3, 7)>;
};
ether_pins: ether {
/* Ethernet on Ports 1,3,5,10 */
pinmux = <RZA1_PINMUX(1, 14, 4)>, /* P1_14 = ET_COL */
<RZA1_PINMUX(3, 0, 2)>, /* P3_0 = ET_TXCLK */
<RZA1_PINMUX(3, 3, 2)>, /* P3_3 = ET_MDIO */
<RZA1_PINMUX(3, 4, 2)>, /* P3_4 = ET_RXCLK */
<RZA1_PINMUX(3, 5, 2)>, /* P3_5 = ET_RXER */
<RZA1_PINMUX(3, 6, 2)>, /* P3_6 = ET_RXDV */
<RZA1_PINMUX(5, 9, 2)>, /* P5_9 = ET_MDC */
<RZA1_PINMUX(10, 1, 4)>, /* P10_1 = ET_TXER */
<RZA1_PINMUX(10, 2, 4)>, /* P10_2 = ET_TXEN */
<RZA1_PINMUX(10, 3, 4)>, /* P10_3 = ET_CRS */
<RZA1_PINMUX(10, 4, 4)>, /* P10_4 = ET_TXD0 */
<RZA1_PINMUX(10, 5, 4)>, /* P10_5 = ET_TXD1 */
<RZA1_PINMUX(10, 6, 4)>, /* P10_6 = ET_TXD2 */
<RZA1_PINMUX(10, 7, 4)>, /* P10_7 = ET_TXD3 */
<RZA1_PINMUX(10, 8, 4)>, /* P10_8 = ET_RXD0 */
<RZA1_PINMUX(10, 9, 4)>, /* P10_9 = ET_RXD1 */
<RZA1_PINMUX(10, 10, 4)>,/* P10_10 = ET_RXD2 */
<RZA1_PINMUX(10, 11, 4)>;/* P10_11 = ET_RXD3 */
};
};
&extal_clk {
clock-frequency = <13333000>;
};
&usb_x1_clk {
clock-frequency = <48000000>;
};
&mtu2 {
status = "okay";
};
&ostm0 {
status = "okay";
};
&ostm1 {
status = "okay";
};
&scif2 {
pinctrl-names = "default";
pinctrl-0 = <&scif2_pins>;
status = "okay";
};
&ether {
pinctrl-names = "default";
pinctrl-0 = <&ether_pins>;
status = "okay";
renesas,no-ether-link;
phy-handle = <&phy0>;
phy0: ethernet-phy@0 {
reg = <0>;
reset-gpios = <&port4 2 GPIO_ACTIVE_LOW>;
reset-delay-us = <5>;
};
};