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Date: Mon, 20 Jul 2020 17:35:53 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Claudiu Beznea <claudiu.beznea@...rochip.com>, Alexandre Belloni <alexandre.belloni@...tlin.com>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 5.4 071/215] ARM: at91: pm: add quirk for sam9x60s ulp1 From: Claudiu Beznea <claudiu.beznea@...rochip.com> [ Upstream commit bb1a0e87e1c54cd884e9b92b1cec06b186edc7a0 ] On SAM9X60 2 nop operations has to be introduced after setting WAITMODE bit in CKGR_MOR. Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com> Link: https://lore.kernel.org/r/1579522208-19523-9-git-send-email-claudiu.beznea@microchip.com Signed-off-by: Sasha Levin <sashal@...nel.org> --- arch/arm/mach-at91/pm_suspend.S | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S index ed57c879d4e17..2591cba61937b 100644 --- a/arch/arm/mach-at91/pm_suspend.S +++ b/arch/arm/mach-at91/pm_suspend.S @@ -268,6 +268,10 @@ ENDPROC(at91_backup_mode) orr tmp1, tmp1, #AT91_PMC_KEY str tmp1, [pmc, #AT91_CKGR_MOR] + /* Quirk for SAM9X60's PMC */ + nop + nop + wait_mckrdy /* Enable the crystal oscillator */ -- 2.25.1
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