From: Claudiu Beznea <claudiu.beznea@microchip.com>
To: <nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
<ludovic.desroches@microchip.com>, <linux@armlinux.org.uk>,
<mturquette@baylibre.com>, <sboyd@kernel.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linux-clk@vger.kernel.org>,
Claudiu Beznea <claudiu.beznea@microchip.com>
Subject: [PATCH 8/8] ARM: at91: pm: add quirk for sam9x60's ulp1
Date: Mon, 20 Jan 2020 14:10:08 +0200 [thread overview]
Message-ID: <1579522208-19523-9-git-send-email-claudiu.beznea@microchip.com> (raw)
In-Reply-To: <1579522208-19523-1-git-send-email-claudiu.beznea@microchip.com>
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>
---
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 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 */
--
2.7.4
next prev parent reply other threads:[~2020-01-20 12:10 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-20 12:10 [PATCH 0/8] PM fixes and improvements for SAM9X60 Claudiu Beznea
2020-01-20 12:10 ` [PATCH 1/8] ARM: at91: pm: use proper master clock register offset Claudiu Beznea
2020-01-20 12:10 ` [PATCH 2/8] Revert "ARM: at91: pm: do not disable/enable PLLA for ULP modes" Claudiu Beznea
2020-01-20 12:10 ` [PATCH 3/8] ARM: at91: pm: add macros for plla disable/enable Claudiu Beznea
2020-01-20 12:10 ` [PATCH 4/8] ARM: at91: pm: add pmc_version member to at91_pm_data Claudiu Beznea
2020-02-12 23:30 ` Stephen Boyd
2020-01-20 12:10 ` [PATCH 5/8] ARM: at91: pm: s/sfr/sfrbu in pm_suspend.S Claudiu Beznea
2020-01-20 12:10 ` [PATCH 6/8] clk: at91: move sam9x60's PLL register offsets to PMC header Claudiu Beznea
2020-02-12 23:31 ` Stephen Boyd
2020-01-20 12:10 ` [PATCH 7/8] ARM: at91: pm: add plla disable/enable support for sam9x60 Claudiu Beznea
2020-01-20 12:10 ` Claudiu Beznea [this message]
2020-02-14 11:04 ` [PATCH 0/8] PM fixes and improvements for SAM9X60 Alexandre Belloni
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1579522208-19523-9-git-send-email-claudiu.beznea@microchip.com \
--to=claudiu.beznea@microchip.com \
--cc=alexandre.belloni@bootlin.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-clk@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@armlinux.org.uk \
--cc=ludovic.desroches@microchip.com \
--cc=mturquette@baylibre.com \
--cc=nicolas.ferre@microchip.com \
--cc=sboyd@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).