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Commit 71de5c46 authored by Lee Jones's avatar Lee Jones Committed by Arnd Bergmann
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ARM: ux500: Provide local timer support for Device Tree 



This enables local timer (AKA: private timer) support for
all u8500 based hardware using DT.

Acked-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 15daf691

arch/arm/boot/dts/db8500.dtsi

+6 −0
Original line number Diff line number Diff line
@@ -42,6 +42,12 @@ 
			interrupts = <0 7 0x4>;

		};



		timer@a0410600 {

			compatible = "arm,cortex-a9-twd-timer";

			reg = <0xa0410600 0x20>;

			interrupts = <1 13 0x304>;

		};



		rtc@80154000 {

			compatible = "stericsson,db8500-rtc";

			reg = <0x80154000 0x1000>;

arch/arm/mach-ux500/timer.c

+8 −3
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ 
#include <linux/io.h>

#include <linux/errno.h>

#include <linux/clksrc-dbx500-prcmu.h>

#include <linux/of.h>



#include <asm/smp_twd.h>
@@ -30,10 +31,14 @@ static void __init ux500_twd_init(void) 
	twd_local_timer = cpu_is_u5500() ? &u5500_twd_local_timer :

					   &u8500_twd_local_timer;



	if (of_have_populated_dt())

		twd_local_timer_of_register();

	else {

		err = twd_local_timer_register(twd_local_timer);

		if (err)

			pr_err("twd_local_timer_register failed %d\n", err);

	}

}

#else

#define ux500_twd_init()	do { } while(0)

#endif