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From: lee.jones@linaro.org (Lee Jones)
To: linux-arm-kernel@lists.infradead.org
Subject: [[PATCH v2] 1/8] ARM: dts: STi: STiH407: Provide generic (safe) DVFS configuration
Date: Thu, 21 Apr 2016 16:07:40 +0100	[thread overview]
Message-ID: <1461251267-14897-1-git-send-email-lee.jones@linaro.org> (raw)

You'll notice that the voltage cell is populated with 0's.  Voltage
information is very platform specific, even depends on 'cut' and
'substrate' versions.  Thus it is left blank for a generic (safe)
implementation.  If other nodes/properties are provided by the
bootloader, the ST CPUFreq driver will over-ride these generic
values.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
---
 arch/arm/boot/dts/stih407-family.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/stih407-family.dtsi b/arch/arm/boot/dts/stih407-family.dtsi
index 81f8121..9fa1e58 100644
--- a/arch/arm/boot/dts/stih407-family.dtsi
+++ b/arch/arm/boot/dts/stih407-family.dtsi
@@ -22,15 +22,29 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <0>;
+
 			/* u-boot puts hpen in SBC dmem at 0xa4 offset */
 			cpu-release-addr = <0x94100A4>;
+
+					 /* kHz     uV   */
+			operating-points = <1500000 0
+					    1200000 0
+					    800000  0
+					    500000  0>;
 		};
 		cpu at 1 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <1>;
+
 			/* u-boot puts hpen in SBC dmem at 0xa4 offset */
 			cpu-release-addr = <0x94100A4>;
+
+					 /* kHz     uV   */
+			operating-points = <1500000 0
+					    1200000 0
+					    800000  0
+					    500000  0>;
 		};
 	};
 
-- 
2.8.0

             reply	other threads:[~2016-04-21 15:07 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-21 15:07 Lee Jones [this message]
2016-04-21 15:07 ` [[PATCH v2] 2/8] ARM: dts: STi: STiH407: Provide CPU with clocking information Lee Jones
2016-04-21 15:07 ` [[PATCH v2] 3/8] ARM: dts: STi: STiH407: Link CPU with its voltage supply Lee Jones
2016-04-21 15:07 ` [[PATCH v2] 4/8] ARM: dts: STi: STiH407: Provide CPU with a means to look-up Major number Lee Jones
2016-04-21 15:07 ` [[PATCH v2] 5/8] ARM: dts: STi: stih407-family: Add nodes for Mailbox Lee Jones
2016-04-21 15:07 ` [[PATCH v2] 6/8] ARM: dts: STiH407: Add nodes for RemoteProc Lee Jones
2016-04-21 15:07 ` [[PATCH v2] 7/8] ARM: dts: STiH407: Move over to using the 'reserved-memory' API for obtaining DMA memory Lee Jones
2016-04-21 15:07 ` [[PATCH v2] 8/8] ARM: dts: STi: STih407: Switch LPC mode from RTC to Clocksource Lee Jones
2016-04-26 14:09 ` [[PATCH v2] 1/8] ARM: dts: STi: STiH407: Provide generic (safe) DVFS configuration Maxime Coquelin
2016-04-26 17:35   ` Lee Jones

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