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Message-id: <1448545659-32287-15-git-send-email-cw00.choi@samsung.com>
Date: Thu, 26 Nov 2015 22:47:38 +0900
From: Chanwoo Choi <cw00.choi@...sung.com>
To: myungjoo.ham@...sung.com, kyungmin.park@...sung.com,
kgene@...nel.org, k.kozlowski@...sung.com
Cc: robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
linux@....linux.org.uk, tjakobi@...h.uni-bielefeld.de,
cw00.choi@...sung.com, linux-kernel@...r.kernel.org,
linux-pm@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
devicetree@...r.kernel.org
Subject: [RFC PATCH 14/15] ARM: dts: Add bus nodes using VDD_INT for Exynos4x12
This patch adds the bus noes using VDD_INT for Exynos4x12 SoC.
Exynos4x12 has the following AXI buses to translate data between
DRAM and sub-blocks.
Following list specifies the detailed relation between DRAM and sub-blocks:
- ACLK100 clock for PERIL/PERIR/MFC(PCLK)
- ACLK160 clock for CAM/TV/LCD
- ACLK133 clock for FSYS
- GDL clock for LEFTBUS
- GDR clock for RIGHTBUS
- SCLK_MFC clock for MFC
Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
---
arch/arm/boot/dts/exynos4x12.dtsi | 119 ++++++++++++++++++++++++++++++++++++++
1 file changed, 119 insertions(+)
diff --git a/arch/arm/boot/dts/exynos4x12.dtsi b/arch/arm/boot/dts/exynos4x12.dtsi
index c7ab2825d7cd..1b90d4984e35 100644
--- a/arch/arm/boot/dts/exynos4x12.dtsi
+++ b/arch/arm/boot/dts/exynos4x12.dtsi
@@ -355,6 +355,125 @@
};
};
+ bus_leftbus: bus_leftbus {
+ compatible = "samsung,exynos-bus";
+ clocks = <&clock CLK_DIV_GDL>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_leftbus_opp_table>;
+ status = "disabled";
+ };
+
+ bus_rightbus: bus_leftbus {
+ compatible = "samsung,exynos-bus";
+ clocks = <&clock CLK_DIV_GDR>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_leftbus_opp_table>;
+ status = "disabled";
+ };
+
+ bus_display: bus_display {
+ compatible = "samsung,exynos-bus";
+ clocks = <&clock CLK_ACLK160>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_display_opp_table>;
+ status = "disabled";
+ };
+
+ bus_fsys: bus_fsys {
+ compatible = "samsung,exynos-bus";
+ clocks = <&clock CLK_ACLK133>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_fsys_opp_table>;
+ status = "disabled";
+ };
+
+ bus_peri: bus_peri {
+ compatible = "samsung,exynos-bus";
+ clocks = <&clock CLK_ACLK100>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_peri_opp_table>;
+ status = "disabled";
+ };
+
+ bus_mfc: bus_mfc {
+ compatible = "samsung,exynos-bus";
+ clocks = <&clock CLK_SCLK_MFC>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_leftbus_opp_table>;
+ status = "disabled";
+ };
+
+ bus_leftbus_opp_table: opp_table1 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp00 {
+ opp-hz = /bits/ 64 <100000000>;
+ opp-microvolt = <900000>;
+ };
+ opp01 {
+ opp-hz = /bits/ 64 <133000000>;
+ opp-microvolt = <925000>;
+ };
+ opp02 {
+ opp-hz = /bits/ 64 <160000000>;
+ opp-microvolt = <950000>;
+ };
+ opp03 {
+ opp-hz = /bits/ 64 <200000000>;
+ opp-microvolt = <1000000>;
+ };
+ };
+
+ bus_display_opp_table: opp_table2 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp00 {
+ opp-hz = /bits/ 64 <100000000>;
+ opp-microvolt = <900000>;
+ };
+ opp01 {
+ opp-hz = /bits/ 64 <133000000>;
+ opp-microvolt = <925000>;
+ };
+ opp02 {
+ opp-hz = /bits/ 64 <160000000>;
+ opp-microvolt = <950000>;
+ };
+ opp03 {
+ opp-hz = /bits/ 64 <160000000>;
+ opp-microvolt = <1000000>;
+ };
+ };
+
+ bus_fsys_opp_table: opp_table3 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp00 {
+ opp-hz = /bits/ 64 <100000000>;
+ opp-microvolt = <900000>;
+ };
+ opp01 {
+ opp-hz = /bits/ 64 <133000000>;
+ opp-microvolt = <925000>;
+ };
+ };
+
+ bus_peri_opp_table: opp_table4 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp00 {
+ opp-hz = /bits/ 64 <50000000>;
+ opp-microvolt = <900000>;
+ };
+ opp01 {
+ opp-hz = /bits/ 64 <100000000>;
+ opp-microvolt = <925000>;
+ };
+ };
};
&combiner {
--
1.9.1
--
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