[RFC 8/9] ARM: dts: dra7: Add opp-modifier device entry and add higher OPPs

Dave Gerlach
2014-03-14T19:25:34Z

Add an entry for opp-modifier which configures OPPs on 43xx. Within
this, nodes are defined with the opp-modifier propety that are defined as
a list of frequency, offset from base register, and efuse 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 dra7.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
---
arch/arm/boot/dts/dra7.dtsi | 18 ++++++++++++++++++
include/dt-bindings/opp/ti.h | 3 +++
2 files changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 1fd75aa..ffd0bae 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -9,6 +9,7 @@

#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/pinctrl/dra.h>
+#include <dt-bindings/opp/ti.h>

#include "skeleton.dtsi"

@@ -46,7 +47,10 @@
/* kHz uV */
1000000 1060000
1176000 1160000
+ 1500000 1260000
>;
+
+ platform-opp-modifier = <&mpu_opp_modifier>;
};
cpu@1 {
device_type = "cpu";
@@ -621,6 +625,20 @@
dma-names = "tx0", "rx0";
status = "disabled";
};
+
+ opp_modifier: opp_modifier@0x4AE0C20C {
+ compatible = "opp-modifier-reg-val";
+ reg = <0x4AE0C20C 0x04>;
+ opp,reg-mask = <0x000000F7>;
+
+ mpu_opp_modifier: mpu_opp_modifier {
+ opp-modifier = <
+ /* kHz offset value */
+ 1500000 0 DRA7_EFUSE_HAS_HIGH_MPU_OPP
+ 1176000 0 DRA7_EFUSE_HAS_OD_MPU_OPP
+ >;
+ };
+ };
};
};

diff --git a/include/dt-bindings/opp/ti.h b/include/dt-bindings/opp/ti.h
index cb62c32..0f5efe8 100644
--- a/include/dt-bindings/opp/ti.h
+++ b/include/dt-bindings/opp/ti.h
@@ -27,4 +27,7 @@

#define OMAP4_EFUSE_HAS_PERF_SILICON_BIT (1 << 17)

+#define DRA7_EFUSE_HAS_OD_MPU_OPP 11
+#define DRA7_EFUSE_HAS_HIGH_MPU_OPP 15
+
#endif /* __DT_BINDINGS_OPP_TI_H__ */
--
1.9.0