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* [[PATCH v2] 1/8] ARM: dts: STi: STiH407: Provide generic (safe) DVFS configuration
@ 2016-04-21 15:07 ` Lee Jones
  0 siblings, 0 replies; 20+ messages in thread
From: Lee Jones @ 2016-04-21 15:07 UTC (permalink / raw)
  To: linux-arm-kernel

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

^ permalink raw reply related	[flat|nested] 20+ messages in thread

end of thread, other threads:[~2016-04-26 17:35 UTC | newest]

Thread overview: 20+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-04-21 15:07 [[PATCH v2] 1/8] ARM: dts: STi: STiH407: Provide generic (safe) DVFS configuration Lee Jones
2016-04-21 15:07 ` Lee Jones
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   ` 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   ` 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   ` 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   ` 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   ` 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   ` Lee Jones
2016-04-21 15:07 ` [[PATCH v2] 8/8] ARM: dts: STi: STih407: Switch LPC mode from RTC to Clocksource Lee Jones
2016-04-21 15:07   ` 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 14:09   ` Maxime Coquelin
2016-04-26 17:35   ` Lee Jones
2016-04-26 17:35     ` Lee Jones

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