[PATCH V2 6/8] ARM: dts: OMAP4460: Add CPU OPP table

Nishanth Menon nm at ti.com
Tue Mar 19 13:53:08 EDT 2013


Add DT OPP table for OMAP4460 family of devices. This data is
decoded by OF with of_init_opp_table() helper function.

OPP data here is based on existing opp4xxx_data.c

This is in preparation to use generic cpufreq-cpu0 driver for device
tree enabled boot. Legacy non device tree enabled boot continues to
use omap-cpufreq.c and opp4xxx_data.c.

Cc: Kevin Hilman <khilman at deeprootsystems.com>
Cc: Jon Hunter <jon-hunter at ti.com>
Cc: "Benoît Cousson" <b-cousson at ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar at ti.com>
Cc: Shawn Guo <shawn.guo at linaro.org>
Cc: Keerthy <j-keerthy at ti.com>
Cc: linux-omap at vger.kernel.org
Cc: devicetree-discuss at lists.ozlabs.org
Cc: linux-arm-kernel at lists.infradead.org
Cc: cpufreq at vger.kernel.org
Cc: linux-pm at vger.kernel.org

Signed-off-by: Nishanth Menon <nm at ti.com>
---
Changes in V2:
	- depend on 4460.dtsi available in benoit/for_3.10/dts branch
	- donot delete the OPP table entries in omap4xxx_data.c
	- little more verbose commit log
V1: https://patchwork.kernel.org/patch/2273611/

 arch/arm/boot/dts/omap4460.dtsi |   13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm/boot/dts/omap4460.dtsi b/arch/arm/boot/dts/omap4460.dtsi
index e09b3e1..7c2c23c 100644
--- a/arch/arm/boot/dts/omap4460.dtsi
+++ b/arch/arm/boot/dts/omap4460.dtsi
@@ -10,6 +10,19 @@
 /include/ "omap4.dtsi"
 
 / {
+	cpus {
+		/* OMAP446x 'standard device' variants OPP50 to OPPTurbo */
+		cpu at 0 {
+			operating-points = <
+				/* kHz    uV */
+				350000   975000
+				700000  1075000
+				920000  1200000
+			>;
+			clock-latency = <300000>; /* From legacy driver */
+		};
+	};
+
 	pmu {
 		compatible = "arm,cortex-a9-pmu";
 		interrupts = <0 54 0x4>,
-- 
1.7.9.5




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