lkml.org 
[lkml]   [2022]   [Jan]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 11/15] arm64: dts: rk3399: Add dfi and dmc nodes
Date
From: Lin Huang <hl@rock-chips.com>

These are required to support DDR DVFS on RK3399 platforms.

Signed-off-by: Lin Huang <hl@rock-chips.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Gaël PORTAY <gael.portay@collabora.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Change since Daniel's posting: reordered by unit address, per existing
style

---

Changes in v2:
- rename dmc to memory-controller

Changes in v1:
This is based on a v5 posting from various authors:
https://lore.kernel.org/lkml/20210308233858.24741-3-daniel.lezcano@linaro.org/
Much of that series was already merged, so I start over with the
numbering.

arch/arm64/boot/dts/rockchip/rk3399.dtsi | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index d3cdf6f42a30..4096ef6f7b72 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -1295,6 +1295,25 @@ pwm3: pwm@ff420030 {
status = "disabled";
};

+ dfi: dfi@ff630000 {
+ reg = <0x00 0xff630000 0x00 0x4000>;
+ compatible = "rockchip,rk3399-dfi";
+ rockchip,pmu = <&pmugrf>;
+ interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&cru PCLK_DDR_MON>;
+ clock-names = "pclk_ddr_mon";
+ status = "disabled";
+ };
+
+ dmc: memory-controller {
+ compatible = "rockchip,rk3399-dmc";
+ rockchip,pmu = <&pmugrf>;
+ devfreq-events = <&dfi>;
+ clocks = <&cru SCLK_DDRC>;
+ clock-names = "dmc_clk";
+ status = "disabled";
+ };
+
vpu: video-codec@ff650000 {
compatible = "rockchip,rk3399-vpu";
reg = <0x0 0xff650000 0x0 0x800>;
--
2.35.0.rc0.227.g00780c9af4-goog
\
 
 \ /
  Last update: 2022-01-28 00:09    [W:0.137 / U:0.988 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site