From mboxrd@z Thu Jan 1 00:00:00 1970 From: alexandre.belloni@free-electrons.com (Alexandre Belloni) Date: Tue, 17 Feb 2015 11:24:11 +0100 Subject: [PATCH 2/3] pm: at91: pm_suspend: MOR register KEY was missing In-Reply-To: <1423709533-8416-1-git-send-email-wenyou.yang@atmel.com> References: <1423709441-8342-1-git-send-email-wenyou.yang@atmel.com> <1423709533-8416-1-git-send-email-wenyou.yang@atmel.com> Message-ID: <20150217102411.GC11529@piout.net> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 12/02/2015 at 10:52:13 +0800, Wenyou Yang wrote : > From: Patrice Vilchez > > Because writing the MOR register requires the PASSWD(0x37), > if missed, the write operation will be aborted. > > Signed-off-by: Patrice Vilchez Acked-by: Alexandre Belloni > --- > arch/arm/mach-at91/pm_suspend.S | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S > index 1c7256a..5347ad4 100644 > --- a/arch/arm/mach-at91/pm_suspend.S > +++ b/arch/arm/mach-at91/pm_suspend.S > @@ -132,6 +132,7 @@ ENTRY(at91_pm_suspend_in_sram) > /* Turn off the main oscillator */ > ldr tmp1, [pmc, #AT91_CKGR_MOR] > bic tmp1, tmp1, #AT91_PMC_MOSCEN > + orr tmp1, tmp1, #AT91_PMC_KEY > str tmp1, [pmc, #AT91_CKGR_MOR] > > skip_disable_main_clock: > @@ -149,6 +150,7 @@ skip_disable_main_clock: > /* Turn on the main oscillator */ > ldr tmp1, [pmc, #AT91_CKGR_MOR] > orr tmp1, tmp1, #AT91_PMC_MOSCEN > + orr tmp1, tmp1, #AT91_PMC_KEY > str tmp1, [pmc, #AT91_CKGR_MOR] > > wait_moscrdy > -- > 1.7.9.5 > -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com