From: Dave Gerlach <d-gerlach@ti.com>
To: linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org,
linux-pm@vger.kernel.org
Cc: cpufreq@vger.kernel.org, devicetree@vger.kernel.org,
kernel@pengutronix.de, "Rafael J. Wysocki" <rjw@rjwysocki.net>,
Jisheng Zhang <jszhang@marvell.com>,
Anson Huang <Anson.Huang@freescale.com>,
Shawn Guo <shawn.guo@linaro.org>,
Viresh Kumar <viresh.kumar@linaro.org>,
Nishanth Menon <nm@ti.com>, Dave Gerlach <d-gerlach@ti.com>
Subject: [RFC 6/9] ARM: dts: omap443x: Add opp-modifier entry and add higher OPPs
Date: Fri, 14 Mar 2014 14:25:32 -0500 [thread overview]
Message-ID: <1394825135-60110-7-git-send-email-d-gerlach@ti.com> (raw)
In-Reply-To: <1394825135-60110-1-git-send-email-d-gerlach@ti.com>
Add an entry for opp_modifier which configures OPPs on omap443x. Within
this, nodes are defined with the opp-modifier propety that are defined as
a list of frequency, offset from base register, and register value. The
CPU node passes a phandle to the appropriate child node to get the correct
table.
This patch also adds higher eFused OPPs for omap443x.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
---
arch/arm/boot/dts/omap443x.dtsi | 16 ++++++++++++++++
include/dt-bindings/opp/ti.h | 2 ++
2 files changed, 18 insertions(+)
diff --git a/arch/arm/boot/dts/omap443x.dtsi b/arch/arm/boot/dts/omap443x.dtsi
index 8c1cfad..1c7e730 100644
--- a/arch/arm/boot/dts/omap443x.dtsi
+++ b/arch/arm/boot/dts/omap443x.dtsi
@@ -9,6 +9,7 @@
*/
#include "omap4.dtsi"
+#include <dt-bindings/opp/ti.h>
/ {
cpus {
@@ -20,9 +21,12 @@
600000 1200000
800000 1313000
1008000 1375000
+ 1200000 1388000
>;
clock-latency = <300000>; /* From legacy driver */
+ platform-opp-modifier = <&mpu_opp_modifier>;
+
/* cooling options */
cooling-min-level = <0>;
cooling-max-level = <3>;
@@ -42,6 +46,18 @@
#thermal-sensor-cells = <0>;
};
+
+ opp_modifier: opp_modifier@0x4A002218 {
+ compatible = "opp-modifier-reg-bit";
+ reg = <0x4A002218 0x04>;
+
+ mpu_opp_modifier: mpu_opp_modifier {
+ opp-modifier = <
+ /* kHz offset value */
+ 1200000 0 OMAP4_EFUSE_HAS_PERF_SILICON_BIT
+ >;
+ };
+ };
};
};
diff --git a/include/dt-bindings/opp/ti.h b/include/dt-bindings/opp/ti.h
index d3717be..cb62c32 100644
--- a/include/dt-bindings/opp/ti.h
+++ b/include/dt-bindings/opp/ti.h
@@ -25,4 +25,6 @@
#define AM43XX_EFUSE_SMA_OPP_TURBO_800MHZ_BIT (1 << 4)
#define AM43XX_EFUSE_SMA_OPP_NITRO_1GHZ_BIT (1 << 5)
+#define OMAP4_EFUSE_HAS_PERF_SILICON_BIT (1 << 17)
+
#endif /* __DT_BINDINGS_OPP_TI_H__ */
--
1.9.0
next prev parent reply other threads:[~2014-03-14 19:25 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-14 19:25 [RFC 0/9] Introduce OPP modifier for ARM SoCs Dave Gerlach
2014-03-14 19:25 ` [RFC 1/9] opp-modifier: Introduce OPP Modifier Framework Dave Gerlach
2014-03-14 19:25 ` [RFC 2/9] opp-modifier: Add opp-modifier-reg driver Dave Gerlach
2014-03-14 21:00 ` Rob Herring
2014-03-17 14:30 ` Nishanth Menon
2014-03-17 18:37 ` Rob Herring
2014-03-18 15:36 ` Nishanth Menon
2014-03-25 3:24 ` Dave Gerlach
2014-03-14 19:25 ` [RFC 3/9] PM / OPP: Add hook to modify OPPs after they are loaded Dave Gerlach
2014-03-14 19:25 ` [RFC 4/9] ARM: dts: AM33XX: Add opp-modifier device entry and add higher OPPs Dave Gerlach
2014-03-14 19:25 ` [RFC 5/9] ARM: dts: AM4372: " Dave Gerlach
2014-03-14 19:25 ` Dave Gerlach [this message]
2014-03-14 19:25 ` [RFC 7/9] ARM: dts: omap4460: Add opp-modifier " Dave Gerlach
2014-03-14 19:25 ` [RFC 8/9] ARM: dts: dra7: Add opp-modifier device " Dave Gerlach
2014-03-14 19:25 ` [RFC 9/9] ARM: dts: imx6q: Add opp-modifier device entry Dave Gerlach
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