Subject: + arm-at91-fix-rtc-irq-mask-for-sam9x5-socs.patch added to -mm tree
To: boris.brezillon@xxxxxxxxxxxxxxxxxx,a.zummo@xxxxxxxxxxxx,bevenson@xxxxxxxxxxxxxx,johan@xxxxxxxxxx,linux@xxxxxxxxxxxx,mark.roszko@xxxxxxxxx,nicolas.ferre@xxxxxxxxx,plagnioj@xxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Thu, 29 May 2014 16:09:54 -0700
The patch titled
Subject: ARM: at91: fix rtc irq mask for sam9x5 SoCs
has been added to the -mm tree. Its filename is
arm-at91-fix-rtc-irq-mask-for-sam9x5-socs.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/arm-at91-fix-rtc-irq-mask-for-sam9x5-socs.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/arm-at91-fix-rtc-irq-mask-for-sam9x5-socs.patch
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From: Boris BREZILLON <boris.brezillon@xxxxxxxxxxxxxxxxxx>
Subject: ARM: at91: fix rtc irq mask for sam9x5 SoCs
The RTC IMR register is not reliable on sam9x5 SoCs, hence why me have to
mask all interrupts no matter what IMR claims about already masked irqs.
Mark said:
: Atmel actually has this issue in the Errata of the SAM9G25 and SAM9G35
: datasheets which might be worth referencing in the description?
Signed-off-by: Boris BREZILLON <boris.brezillon@xxxxxxxxxxxxxxxxxx>
Reported-by: Bryan Evenson <bevenson@xxxxxxxxxxxxxx>
Tested-by: Bryan Evenson <bevenson@xxxxxxxxxxxxxx>
Cc: Andrew Victor <linux@xxxxxxxxxxxx>
Cc: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@xxxxxxxxxxxx>
Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx>
Cc: Mark Roszko <mark.roszko@xxxxxxxxx>
Cc: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-at91/sysirq_mask.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff -puN arch/arm/mach-at91/sysirq_mask.c~arm-at91-fix-rtc-irq-mask-for-sam9x5-socs arch/arm/mach-at91/sysirq_mask.c
--- a/arch/arm/mach-at91/sysirq_mask.c~arm-at91-fix-rtc-irq-mask-for-sam9x5-socs
+++ a/arch/arm/mach-at91/sysirq_mask.c
@@ -37,12 +37,7 @@ void __init at91_sysirq_mask_rtc(u32 rtc
if (!base)
return;
- mask = readl_relaxed(base + AT91_RTC_IMR);
- if (mask) {
- pr_info("AT91: Disabling rtc irq\n");
- writel_relaxed(mask, base + AT91_RTC_IDR);
- (void)readl_relaxed(base + AT91_RTC_IMR); /* flush */
- }
+ writel_relaxed(0x1f, base + AT91_RTC_IDR);
iounmap(base);
}
_
Patches currently in -mm which might be from boris.brezillon@xxxxxxxxxxxxxxxxxx are
rtc-rtc-at91rm9200-fix-infinite-wait-for-ackupd-irq.patch
rtc-rtc-at91rm9200-fix-infinite-wait-for-ackupd-irq-v2.patch
arm-at91-fix-rtc-irq-mask-for-sam9x5-socs.patch
linux-next.patch
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