From: Nishanth Menon <nm@ti.com>
To: Tony Lindgren <tony@atomide.com>
Cc: <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-omap@vger.kernel.org>, Nishanth Menon <nm@ti.com>
Subject: [PATCH 1/3] ARM: OMAP: DRA7: powerdomain data: Erratum i892 workaround: Disable core INA
Date: Thu, 31 Mar 2016 16:58:33 -0500 [thread overview]
Message-ID: <1459461515-5192-2-git-send-email-nm@ti.com> (raw)
In-Reply-To: <1459461515-5192-1-git-send-email-nm@ti.com>
Erratum i892 as will be documented in the upcoming G or later revision
of DRA7xx/ AM57xx errata documentation (SPRZ398F) states that L3 clock
needs to be kept active all the time to ensure that asymmetric aging
degradation is minimal and within the design allowed margin.
By allowing core domain to transition to INA and allowing L3 clock to be
turned off for extended periods of time, there is a risk of functional
issues and device failure as a result.
Ref: http://www.ti.com/lit/er/sprz429h/sprz429h.pdf
Signed-off-by: Nishanth Menon <nm@ti.com>
---
arch/arm/mach-omap2/powerdomains7xx_data.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-omap2/powerdomains7xx_data.c b/arch/arm/mach-omap2/powerdomains7xx_data.c
index 287a2037aa16..f2b4557124f3 100644
--- a/arch/arm/mach-omap2/powerdomains7xx_data.c
+++ b/arch/arm/mach-omap2/powerdomains7xx_data.c
@@ -160,7 +160,7 @@ static struct powerdomain core_7xx_pwrdm = {
.name = "core_pwrdm",
.prcm_offs = DRA7XX_PRM_CORE_INST,
.prcm_partition = DRA7XX_PRM_PARTITION,
- .pwrsts = PWRSTS_INA_ON,
+ .pwrsts = PWRSTS_ON,
.pwrsts_logic_ret = PWRSTS_RET,
.banks = 5,
.pwrsts_mem_ret = {
--
2.8.0
next prev parent reply other threads:[~2016-03-31 21:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-31 21:58 [PATCH 0/3] ARM: OMAP: DRA7: Updates for power domain data Nishanth Menon
2016-03-31 21:58 ` Nishanth Menon [this message]
2016-03-31 21:58 ` [PATCH 2/3] ARM: OMAP: DRA7: powerdomain data: Fix "ON" state for memories Nishanth Menon
2016-03-31 21:58 ` [PATCH 3/3] ARM: OMAP: DRA7: powerdomain data: Remove wrong OSWR capability Nishanth Menon
2016-04-13 21:30 ` [PATCH 0/3] ARM: OMAP: DRA7: Updates for power domain data Tony Lindgren
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