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Message-ID: <20240711011316.2713270-3-sunyeal.hong@samsung.com>
Date: Thu, 11 Jul 2024 10:13:14 +0900
From: Sunyeal Hong <sunyeal.hong@...sung.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, Sylwester Nawrocki
<s.nawrocki@...sung.com>, Chanwoo Choi <cw00.choi@...sung.com>, Alim Akhtar
<alim.akhtar@...sung.com>, Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>, Conor Dooley
<conor+dt@...nel.org>
Cc: linux-samsung-soc@...r.kernel.org, linux-clk@...r.kernel.org,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, Sunyeal Hong <sunyeal.hong@...sung.com>
Subject: [PATCH v3 2/4] arm64: dts: exynos: add initial CMU clock nodes in
ExynosAuto v920
Add cmu_top, cmu_peric0 clock nodes and
switch USI clocks instead of dummy fixed-rate-clock.
Signed-off-by: Sunyeal Hong <sunyeal.hong@...sung.com>
---
.../arm64/boot/dts/exynos/exynosautov920.dtsi | 40 +++++++++++++------
1 file changed, 27 insertions(+), 13 deletions(-)
diff --git a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi
index c1c8566d74f5..54fc32074379 100644
--- a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi
@@ -6,6 +6,7 @@
*
*/
+#include <dt-bindings/clock/samsung,exynosautov920.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/soc/samsung,exynos-usi.h>
@@ -38,17 +39,6 @@ xtcxo: clock {
clock-output-names = "oscclk";
};
- /*
- * FIXME: Keep the stub clock for serial driver, until proper clock
- * driver is implemented.
- */
- clock_usi: clock-usi {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <200000000>;
- clock-output-names = "usi";
- };
-
cpus: cpus {
#address-cells = <2>;
#size-cells = <0>;
@@ -182,6 +172,28 @@ chipid@...00000 {
reg = <0x10000000 0x24>;
};
+ cmu_peric0: clock-controller@...00000 {
+ compatible = "samsung,exynosautov920-cmu-peric0";
+ reg = <0x10800000 0x8000>;
+ #clock-cells = <1>;
+
+ clocks = <&xtcxo>,
+ <&cmu_top DOUT_CLKCMU_PERIC0_NOC>,
+ <&cmu_top DOUT_CLKCMU_PERIC0_IP>;
+ clock-names = "oscclk",
+ "noc",
+ "ip";
+ };
+
+ cmu_top: clock-controller@...00000 {
+ compatible = "samsung,exynosautov920-cmu-top";
+ reg = <0x11000000 0x8000>;
+ #clock-cells = <1>;
+
+ clocks = <&xtcxo>;
+ clock-names = "oscclk";
+ };
+
gic: interrupt-controller@...00000 {
compatible = "arm,gic-v3";
#interrupt-cells = <3>;
@@ -213,7 +225,8 @@ usi_0: usi@...800c0 {
#address-cells = <1>;
#size-cells = <1>;
ranges;
- clocks = <&clock_usi>, <&clock_usi>;
+ clocks = <&cmu_peric0 CLK_MOUT_PERIC0_NOC_USER>,
+ <&cmu_peric0 CLK_DOUT_PERIC0_USI00_USI>;
clock-names = "pclk", "ipclk";
status = "disabled";
@@ -224,7 +237,8 @@ serial_0: serial@...80000 {
interrupts = <GIC_SPI 764 IRQ_TYPE_LEVEL_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&uart0_bus>;
- clocks = <&clock_usi>, <&clock_usi>;
+ clocks = <&cmu_peric0 CLK_MOUT_PERIC0_NOC_USER>,
+ <&cmu_peric0 CLK_DOUT_PERIC0_USI00_USI>;
clock-names = "uart", "clk_uart_baud0";
samsung,uart-fifosize = <256>;
status = "disabled";
--
2.45.2
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