| From bb1a0e87e1c54cd884e9b92b1cec06b186edc7a0 Mon Sep 17 00:00:00 2001 |
| From: Claudiu Beznea <claudiu.beznea@microchip.com> |
| Date: Mon, 20 Jan 2020 14:10:08 +0200 |
| Subject: [PATCH] ARM: at91: pm: add quirk for sam9x60's ulp1 |
| |
| commit bb1a0e87e1c54cd884e9b92b1cec06b186edc7a0 upstream. |
| |
| 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 |
| |
| 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 */ |
| -- |
| 2.27.0 |
| |
