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| author | Claudiu Beznea <claudiu.beznea@microchip.com> | 2020-01-20 13:10:08 +0100 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2020-02-18 21:47:54 +0100 |
| commit | bb1a0e87e1c54cd884e9b92b1cec06b186edc7a0 (patch) | |
| tree | 14f0e97554db54164d3fe3fe71abe57d3f1caf0b /arch/arm/mach-at91 | |
| parent | ARM: at91: pm: add plla disable/enable support for sam9x60 (diff) | |
| download | linux-bb1a0e87e1c54cd884e9b92b1cec06b186edc7a0.tar.xz linux-bb1a0e87e1c54cd884e9b92b1cec06b186edc7a0.zip | |
ARM: at91: pm: add quirk for sam9x60's ulp1
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
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 4e9eb4f57f16..be9764e8d3fa 100644 --- a/arch/arm/mach-at91/pm_suspend.S +++ b/arch/arm/mach-at91/pm_suspend.S @@ -275,6 +275,10 @@ 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 */ |