Commit de6d9aa5 authored Jan 20, 2020 by Claudiu Beznea Committed by Greg Kroah-Hartman Jul 22, 2020

ARM: at91: pm: add quirk for sam9x60's ulp1



[ 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@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/1579522208-19523-9-git-send-email-claudiu.beznea@microchip.com


Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 4301497f

arch/arm/mach-at91/pm_suspend.S

+4 −0

Original line number	Diff line number	Diff line
		@@ -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 */