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| author | Claudiu Beznea <claudiu.beznea@microchip.com> | 2020-01-20 14:10:08 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-22 09:32:57 +0200 |
| commit | de6d9aa5f7c1ea9010dea942e65faa2a7c5feebb (patch) | |
| tree | d8db7231b15dbf938a3acab42f64516599838dbb /arch/arm/mach-at91 | |
| parent | 4301497fdc684067ca451a34a9b082d34f7e3273 (diff) | |
| download | linux-stable-de6d9aa5f7c1ea9010dea942e65faa2a7c5feebb.tar.gz linux-stable-de6d9aa5f7c1ea9010dea942e65faa2a7c5feebb.tar.bz2 linux-stable-de6d9aa5f7c1ea9010dea942e65faa2a7c5feebb.zip | |
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>
Diffstat (limited to 'arch/arm/mach-at91')
| -rw-r--r-- | arch/arm/mach-at91/pm_suspend.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S index ed57c879d4e1..2591cba61937 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 */ |