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From: Stephen Boyd <sboyd@codeaurora.org>
To: linux-arm-kernel@lists.infradead.org
Cc: Rohit Vaswani <rvaswani@codeaurora.org>,
	David Brown <davidb@codeaurora.org>,
	linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	Kumar Gala <galak@codeaurora.org>,
	devicetree@vger.kernel.org, Mark Rutland <mark.rutland@arm.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Russell King <linux@arm.linux.org.uk>
Subject: [PATCH v2 1/9] devicetree: bindings: Document Krait/Scorpion cpus and enable-method
Date: Mon, 23 Dec 2013 16:39:45 -0800	[thread overview]
Message-ID: <1387845593-10050-2-git-send-email-sboyd@codeaurora.org> (raw)
In-Reply-To: <1387845593-10050-1-git-send-email-sboyd@codeaurora.org>

From: Rohit Vaswani <rvaswani@codeaurora.org>

Scorpion and Krait don't use the spin-table enable-method.
Instead they rely on mmio register accesses to enable power and
clocks to bring CPUs out of reset. Document their enable-methods.

Cc: <devicetree@vger.kernel.org>
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
[sboyd: Split off into separate patch, renamed methods to
match compatible nodes]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
 Documentation/devicetree/bindings/arm/cpus.txt | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/arm/cpus.txt b/Documentation/devicetree/bindings/arm/cpus.txt
index 9130435..333f4ae 100644
--- a/Documentation/devicetree/bindings/arm/cpus.txt
+++ b/Documentation/devicetree/bindings/arm/cpus.txt
@@ -180,7 +180,11 @@ nodes to be present and contain the properties described below.
 			  be one of:
 			     "spin-table"
 			     "psci"
-			# On ARM 32-bit systems this property is optional.
+			# On ARM 32-bit systems this property is optional and
+			  can be one of:
+			    "qcom,gcc-msm8660"
+			    "qcom,kpss-acc-v1"
+			    "qcom,kpss-acc-v2"
 
 	- cpu-release-addr
 		Usage: required for systems that have an "enable-method"
@@ -191,6 +195,21 @@ nodes to be present and contain the properties described below.
 			  property identifying a 64-bit zero-initialised
 			  memory location.
 
+	- qcom,saw
+		Usage: required for systems that have an "enable-method"
+		       property value of "qcom,kpss-acc-v1" or
+		       "qcom,kpss-acc-v2"
+		Value type: <phandle>
+		Definition: Specifies the SAW[1] node associated with this CPU.
+
+	- qcom,acc
+		Usage: required for systems that have an "enable-method"
+		       property value of "qcom,kpss-acc-v1" or
+		       "qcom,kpss-acc-v2"
+		Value type: <phandle>
+		Definition: Specifies the ACC[2] node associated with this CPU.
+
+
 Example 1 (dual-cluster big.LITTLE system 32-bit):
 
 	cpus {
@@ -382,3 +401,7 @@ cpus {
 		cpu-release-addr = <0 0x20000000>;
 	};
 };
+
+--
+[1] arm/msm/qcom,saw2.txt
+[2] arm/msm/qcom,kpss-acc.txt
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation

  reply	other threads:[~2013-12-24  0:39 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-24  0:39 [PATCH v2 0/9] CPU enable method based SMP/hotplug + MSM conversion Stephen Boyd
2013-12-24  0:39 ` Stephen Boyd [this message]
     [not found]   ` <1387845593-10050-2-git-send-email-sboyd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2014-01-08 14:21     ` [PATCH v2 1/9] devicetree: bindings: Document Krait/Scorpion cpus and enable-method Mark Rutland
2014-01-08 23:21       ` Stephen Boyd
2013-12-24  0:39 ` [PATCH v2 2/9] devicetree: bindings: Document qcom,kpss-acc Stephen Boyd
2014-01-08 14:25   ` Mark Rutland
2014-01-08 14:32     ` Mark Rutland
2014-01-08 23:02       ` Stephen Boyd
2013-12-24  0:39 ` [PATCH v2 3/9] devicetree: bindings: Document qcom,saw2 node Stephen Boyd
2014-01-08 14:36   ` Mark Rutland
2014-01-08 15:21     ` Mark Rutland
2013-12-24  0:39 ` [PATCH v2 4/9] ARM: Introduce CPU_METHOD_OF_DECLARE() for cpu hotplug/smp Stephen Boyd
2014-01-08 15:06   ` Mark Rutland
2013-12-24  0:39 ` [PATCH v2 5/9] ARM: msm: Remove pen_release usage Stephen Boyd
2013-12-24  0:39 ` [PATCH v2 6/9] ARM: msm: Re-organize platsmp to make it extensible Stephen Boyd
2013-12-24  0:39 ` [PATCH v2 7/9] ARM: msm: Add SMP support for KPSSv1 Stephen Boyd
2013-12-24  0:39 ` [PATCH v2 8/9] ARM: msm: Add SMP support for KPSSv2 Stephen Boyd
2013-12-24  0:39 ` [PATCH v2 9/9] ARM: dts: msm: Add nodes necessary for SMP boot Stephen Boyd
     [not found] ` <1387845593-10050-1-git-send-email-sboyd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2014-01-06 22:19   ` [PATCH v2 0/9] CPU enable method based SMP/hotplug + MSM conversion Stephen Boyd
2014-01-08 15:20     ` Mark Rutland
2014-01-08 21:37 ` Arnd Bergmann
2014-01-09  1:50   ` Stephen Boyd
     [not found]     ` <52CE005A.3070802-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2014-01-23 22:04       ` Kumar Gala
2014-02-07 21:13 ` [PATCH v2 10/9] ARM: msm: Remove board-dt.c Stephen Boyd

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