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Date: Mon, 14 Dec 2015 15:38:20 +0900
From: Chanwoo Choi <cw00.choi@...sung.com>
To: myungjoo.ham@...sung.com, k.kozlowski@...sung.com, kgene@...nel.org
Cc: kyungmin.park@...sung.com, 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, linux.amoon@...il.com,
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: [PATCH v4 16/20] ARM: dts: Add bus nodes using VDD_MIF for Exynos4210
This patch adds the bus nodes for Exynos4210 SoC. Exynos4210 SoC has
one power line for all buses to translate data between DRAM and sub-blocks.
Following list specifies the detailed relation between DRAM and sub-blocks:
- DMC/ACP clock for DMC (Dynamic Memory Controller)
- ACLK200 clock for LCD0
- ACLK100 clock for PERIL/PERIR/MFC(PCLK)
- ACLK160 clock for CAM/TV/LCD0/LCD1
- ACLK133 clock for FSYS/GPS
- GDL/GDR clock for LEFTBUS/RIGHTBUS
- SCLK_MFC clock for MFC
Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
---
arch/arm/boot/dts/exynos4210.dtsi | 159 ++++++++++++++++++++++++++++++++++++++
1 file changed, 159 insertions(+)
diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi
index c1cb8df6da07..2d9b02967105 100644
--- a/arch/arm/boot/dts/exynos4210.dtsi
+++ b/arch/arm/boot/dts/exynos4210.dtsi
@@ -257,6 +257,165 @@
power-domains = <&pd_lcd1>;
#iommu-cells = <0>;
};
+
+ bus_dmc: bus_dmc {
+ compatible = "samsung,exynos-bus";
+ clocks = <&clock CLK_DIV_DMC>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_dmc_opp_table>;
+ status = "disabled";
+ };
+
+ bus_acp: bus_acp {
+ compatible = "samsung,exynos-bus";
+ clocks = <&clock CLK_DIV_ACP>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_acp_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_fsys: bus_fsys {
+ compatible = "samsung,exynos-bus";
+ clocks = <&clock CLK_ACLK133>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_fsys_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_lcd0: bus_lcd0 {
+ compatible = "samsung,exynos-bus";
+ clocks = <&clock CLK_ACLK200>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_leftbus_opp_table>;
+ status = "disabled";
+ };
+
+ 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_rightbus {
+ compatible = "samsung,exynos-bus";
+ clocks = <&clock CLK_DIV_GDR>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_leftbus_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_dmc_opp_table: opp_table1 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp@...000000 {
+ opp-hz = /bits/ 64 <134000000>;
+ opp-microvolt = <1025000>;
+ };
+ opp@...000000 {
+ opp-hz = /bits/ 64 <267000000>;
+ opp-microvolt = <1050000>;
+ };
+ opp@...000000 {
+ opp-hz = /bits/ 64 <400000000>;
+ opp-microvolt = <1150000>;
+ };
+ };
+
+ bus_acp_opp_table: opp_table2 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp@...000000 {
+ opp-hz = /bits/ 64 <134000000>;
+ };
+ opp@...000000 {
+ opp-hz = /bits/ 64 <160000000>;
+ };
+ opp@...000000 {
+ opp-hz = /bits/ 64 <200000000>;
+ };
+ };
+
+ bus_peri_opp_table: opp_table3 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp@...0000 {
+ opp-hz = /bits/ 64 <5000000>;
+ };
+ opp@...000000 {
+ opp-hz = /bits/ 64 <100000000>;
+ };
+ };
+
+ bus_fsys_opp_table: opp_table4 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp@...00000 {
+ opp-hz = /bits/ 64 <10000000>;
+ };
+ opp@...000000 {
+ opp-hz = /bits/ 64 <134000000>;
+ };
+ };
+
+ bus_display_opp_table: opp_table5 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp@...000000 {
+ opp-hz = /bits/ 64 <100000000>;
+ };
+ opp@...000000 {
+ opp-hz = /bits/ 64 <134000000>;
+ };
+ opp@...000000 {
+ opp-hz = /bits/ 64 <160000000>;
+ };
+ };
+
+ bus_leftbus_opp_table: opp_table6 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp@...000000 {
+ opp-hz = /bits/ 64 <100000000>;
+ };
+ opp@...000000 {
+ opp-hz = /bits/ 64 <160000000>;
+ };
+ opp@...000000 {
+ opp-hz = /bits/ 64 <200000000>;
+ };
+ };
};
&gic {
--
1.9.1
--
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