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Groups > linux.kernel > #1278229
| From | Chanwoo Choi <cw00.choi@samsung.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [RFC PATCH 14/15] ARM: dts: Add bus nodes using VDD_INT for Exynos4x12 |
| Date | 2015-11-26 14:50 +0100 |
| Message-ID | <qz55V-5QV-27@gated-at.bofh.it> (permalink) |
| References | <qz55T-5QV-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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@samsung.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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[RFC PATCH 00/15] PM / devferq: Add generic exynos bus frequency driver and new passive governor Chanwoo Choi <cw00.choi@samsung.com> - 2015-11-26 14:50 +0100
[RFC PATCH 12/15] ARM: dts: Add support of bus frequency using VDD_INT for exynos3250-rinato Chanwoo Choi <cw00.choi@samsung.com> - 2015-11-26 14:50 +0100
[RFC PATCH 07/15] PM / devfreq: Show the related information according to governor type Chanwoo Choi <cw00.choi@samsung.com> - 2015-11-26 14:50 +0100
[RFC PATCH 14/15] ARM: dts: Add bus nodes using VDD_INT for Exynos4x12 Chanwoo Choi <cw00.choi@samsung.com> - 2015-11-26 14:50 +0100
[RFC PATCH 03/15] ARM: dts: Add DMC bus node for Exynos3250 Chanwoo Choi <cw00.choi@samsung.com> - 2015-11-26 14:50 +0100
[RFC PATCH 08/15] PM / devfreq: exynos: Add support of bus frequency of sub-blocks using passive governor Chanwoo Choi <cw00.choi@samsung.com> - 2015-11-26 15:00 +0100
[RFC PATCH 11/15] ARM: dts: Add bus nodes using VDD_INT for Exynos3250 Chanwoo Choi <cw00.choi@samsung.com> - 2015-11-26 15:00 +0100
[RFC PATCH 02/15] PM / devfreq: exynos: Add documentation for generic exynos bus frequency driver Chanwoo Choi <cw00.choi@samsung.com> - 2015-11-26 15:00 +0100
Re: [RFC PATCH 02/15] PM / devfreq: exynos: Add documentation for generic exynos bus frequency driver Rob Herring <robh@kernel.org> - 2015-11-27 21:40 +0100
Re: [RFC PATCH 02/15] PM / devfreq: exynos: Add documentation for generic exynos bus frequency driver Chanwoo Choi <cwchoi00@gmail.com> - 2015-11-28 03:20 +0100
[RFC PATCH 06/15] PM / devfreq: Add devfreq_get_devfreq_by_phandle() Chanwoo Choi <cw00.choi@samsung.com> - 2015-11-26 15:00 +0100
[RFC PATCH 01/15] PM / devfreq: exynos: Add generic exynos bus frequency driver Chanwoo Choi <cw00.choi@samsung.com> - 2015-11-26 15:00 +0100
Re: [RFC PATCH 01/15] PM / devfreq: exynos: Add generic exynos bus frequency driver MyungJoo Ham <myungjoo.ham@samsung.com> - 2015-11-26 15:10 +0100
Re: [RFC PATCH 01/15] PM / devfreq: exynos: Add generic exynos bus frequency driver Chanwoo Choi <cwchoi00@gmail.com> - 2015-11-26 17:20 +0100
Re: [RFC PATCH 01/15] PM / devfreq: exynos: Add generic exynos bus frequency driver Anand Moon <linux.amoon@gmail.com> - 2015-11-26 18:20 +0100
Re: [RFC PATCH 01/15] PM / devfreq: exynos: Add generic exynos bus frequency driver Chanwoo Choi <cw00.choi@samsung.com> - 2015-11-27 01:40 +0100
[RFC PATCH 05/15] PM / devfreq: Add new passive governor Chanwoo Choi <cw00.choi@samsung.com> - 2015-11-26 15:00 +0100
[RFC PATCH 09/15] PM / devfreq: exynos: Update documentation for bus devices using passive governor Chanwoo Choi <cw00.choi@samsung.com> - 2015-11-26 15:00 +0100
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