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Message-ID: <20231009082452.30684-3-vaishnav.a@ti.com>
Date: Mon, 9 Oct 2023 13:54:52 +0530
From: Vaishnav Achath <vaishnav.a@...com>
To: <vigneshr@...com>, <nm@...com>, <kristo@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>, <afd@...com>
CC: <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <robh+dt@...nel.org>,
<u-kumar1@...com>, <vaishnav.a@...com>
Subject: [PATCH v4 2/2] arm64: dts: ti: k3-j7200-mcu-wakeup: Update fss node and hbmc_mux
From: Nishanth Menon <nm@...com>
FSS node claims to be a syscon node, while it actually is a simple bus
where OSPI, HBMC peripherals are located and a mux for path select
between OSPI and Hyperbus which can be modelled as a reg-mux. So model
it accordingly and use reg-mux to describe the hbmc_mux.
Signed-off-by: Nishanth Menon <nm@...com>
Signed-off-by: Vaishnav Achath <vaishnav.a@...com>
---
V2->V3:
* Keep register regions unchanged as it is correct according to memory
map.
* Update commit messages as per Vignesh's suggestion.
V1->V2:
* Address feedback from Udit to limit the FSS register region size as
per TRM.
* Use reg-mux changes to simplify the hbmc-mux modelling.
* Update commit message to reflect changes.
Depends on:
https://lore.kernel.org/all/20230911151030.71100-1-afd@ti.com/
arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
index 2ee6215e38a6..4f98ea685d33 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
@@ -507,15 +507,16 @@
status = "disabled";
};
- fss: syscon@...00000 {
- compatible = "syscon", "simple-mfd";
+ fss: bus@...00000 {
+ compatible = "simple-bus";
reg = <0x00 0x47000000 0x00 0x100>;
#address-cells = <2>;
#size-cells = <2>;
ranges;
- hbmc_mux: hbmc-mux {
- compatible = "mmio-mux";
+ hbmc_mux: mux-controller@...00004 {
+ compatible = "reg-mux";
+ reg = <0x00 0x47000004 0x00 0x2>;
#mux-control-cells = <1>;
mux-reg-masks = <0x4 0x2>; /* HBMC select */
};
--
2.17.1
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