From: Andrew Davis <afd@ti.com>
To: Nishanth Menon <nm@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>,
Tero Kristo <kristo@kernel.org>, Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Bryan Brattlof <bb@ti.com>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: Andrew Davis <afd@ti.com>
Subject: [PATCH 07/12] arm64: dts: ti: k3-j721s2: Enable UART nodes at the board level
Date: Thu, 20 Oct 2022 11:03:00 -0500 [thread overview]
Message-ID: <20221020160305.18711-8-afd@ti.com> (raw)
In-Reply-To: <20221020160305.18711-1-afd@ti.com>
UART nodes defined in the top-level J721s2 SoC dtsi files are incomplete
and may not be functional unless they are extended with pinmux
information.
As the pinmux is only known at the board integration level, these
nodes should only be enabled when provided with this information.
Disable the UART nodes in the dtsi files and only enable the ones that
are actually pinned out on a given board.
Signed-off-by: Andrew Davis <afd@ti.com>
---
.../dts/ti/k3-j721s2-common-proc-board.dts | 38 ++-----------------
arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 10 +++++
.../boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi | 2 +
3 files changed, 16 insertions(+), 34 deletions(-)
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
index b210cc07c5395..9f1a0ca4dc372 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
@@ -219,49 +219,19 @@ &wkup_uart0 {
status = "reserved";
};
-&main_uart0 {
- status = "disabled";
-};
-
-&main_uart1 {
- status = "disabled";
-};
-
-&main_uart2 {
- status = "disabled";
-};
-
-&main_uart3 {
- status = "disabled";
-};
-
-&main_uart4 {
- status = "disabled";
-};
-
-&main_uart5 {
- status = "disabled";
-};
-
-&main_uart6 {
- status = "disabled";
-};
-
-&main_uart7 {
- status = "disabled";
+&mcu_uart0 {
+ status = "okay";
+ /* Default pinmux */
};
&main_uart8 {
+ status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&main_uart8_pins_default>;
/* Shared with TFA on this platform */
power-domains = <&k3_pds 357 TI_SCI_PD_SHARED>;
};
-&main_uart9 {
- status = "disabled";
-};
-
&main_i2c0 {
clock-frequency = <400000>;
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
index 34e7d577ae13b..7267a7b665ce8 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
@@ -80,6 +80,7 @@ main_uart0: serial@2800000 {
clocks = <&k3_clks 146 3>;
clock-names = "fclk";
power-domains = <&k3_pds 146 TI_SCI_PD_EXCLUSIVE>;
+ status = "disabled";
};
main_uart1: serial@2810000 {
@@ -90,6 +91,7 @@ main_uart1: serial@2810000 {
clocks = <&k3_clks 350 3>;
clock-names = "fclk";
power-domains = <&k3_pds 350 TI_SCI_PD_EXCLUSIVE>;
+ status = "disabled";
};
main_uart2: serial@2820000 {
@@ -100,6 +102,7 @@ main_uart2: serial@2820000 {
clocks = <&k3_clks 351 3>;
clock-names = "fclk";
power-domains = <&k3_pds 351 TI_SCI_PD_EXCLUSIVE>;
+ status = "disabled";
};
main_uart3: serial@2830000 {
@@ -110,6 +113,7 @@ main_uart3: serial@2830000 {
clocks = <&k3_clks 352 3>;
clock-names = "fclk";
power-domains = <&k3_pds 352 TI_SCI_PD_EXCLUSIVE>;
+ status = "disabled";
};
main_uart4: serial@2840000 {
@@ -120,6 +124,7 @@ main_uart4: serial@2840000 {
clocks = <&k3_clks 353 3>;
clock-names = "fclk";
power-domains = <&k3_pds 353 TI_SCI_PD_EXCLUSIVE>;
+ status = "disabled";
};
main_uart5: serial@2850000 {
@@ -130,6 +135,7 @@ main_uart5: serial@2850000 {
clocks = <&k3_clks 354 3>;
clock-names = "fclk";
power-domains = <&k3_pds 354 TI_SCI_PD_EXCLUSIVE>;
+ status = "disabled";
};
main_uart6: serial@2860000 {
@@ -140,6 +146,7 @@ main_uart6: serial@2860000 {
clocks = <&k3_clks 355 3>;
clock-names = "fclk";
power-domains = <&k3_pds 355 TI_SCI_PD_EXCLUSIVE>;
+ status = "disabled";
};
main_uart7: serial@2870000 {
@@ -150,6 +157,7 @@ main_uart7: serial@2870000 {
clocks = <&k3_clks 356 3>;
clock-names = "fclk";
power-domains = <&k3_pds 356 TI_SCI_PD_EXCLUSIVE>;
+ status = "disabled";
};
main_uart8: serial@2880000 {
@@ -160,6 +168,7 @@ main_uart8: serial@2880000 {
clocks = <&k3_clks 357 3>;
clock-names = "fclk";
power-domains = <&k3_pds 357 TI_SCI_PD_EXCLUSIVE>;
+ status = "disabled";
};
main_uart9: serial@2890000 {
@@ -170,6 +179,7 @@ main_uart9: serial@2890000 {
clocks = <&k3_clks 358 3>;
clock-names = "fclk";
power-domains = <&k3_pds 358 TI_SCI_PD_EXCLUSIVE>;
+ status = "disabled";
};
main_gpio0: gpio@600000 {
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
index 4d1bfabd1313a..3de4218e8e125 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
@@ -91,6 +91,7 @@ wkup_uart0: serial@42300000 {
clocks = <&k3_clks 359 3>;
clock-names = "fclk";
power-domains = <&k3_pds 359 TI_SCI_PD_EXCLUSIVE>;
+ status = "disabled";
};
mcu_uart0: serial@40a00000 {
@@ -101,6 +102,7 @@ mcu_uart0: serial@40a00000 {
clocks = <&k3_clks 149 3>;
clock-names = "fclk";
power-domains = <&k3_pds 149 TI_SCI_PD_EXCLUSIVE>;
+ status = "disabled";
};
wkup_gpio0: gpio@42110000 {
--
2.37.3
next prev parent reply other threads:[~2022-10-20 16:03 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-20 16:02 [PATCH 00/12] TI J7x Disable Incomplete DT Nodes Andrew Davis
2022-10-20 16:02 ` [PATCH 01/12] arm64: dts: ti: k3-j721e: Enable UART nodes at the board level Andrew Davis
2022-10-20 16:02 ` [PATCH 02/12] arm64: dts: ti: k3-j721e: Enable I2C " Andrew Davis
2022-10-20 16:02 ` [PATCH 03/12] arm64: dts: ti: k3-j721e: Enable MCASP " Andrew Davis
2022-10-20 16:02 ` [PATCH 04/12] arm64: dts: ti: k3-j721e: Enable MCAN " Andrew Davis
2022-10-20 16:02 ` [PATCH 05/12] arm64: dts: ti: k3-j7200: Enable UART " Andrew Davis
2022-10-20 16:02 ` [PATCH 06/12] arm64: dts: ti: k3-j7200: Enable I2C " Andrew Davis
2022-10-20 16:03 ` Andrew Davis [this message]
2022-10-20 16:03 ` [PATCH 08/12] arm64: dts: ti: k3-j721e: Enable Mailbox " Andrew Davis
2022-10-20 16:03 ` [PATCH 09/12] arm64: dts: ti: k3-j7200: " Andrew Davis
2022-10-20 16:03 ` [PATCH 10/12] arm64: dts: ti: k3-j721s2: " Andrew Davis
2022-10-20 16:03 ` [PATCH 11/12] arm64: dts: ti: k3-j721s2: Enable MCAN " Andrew Davis
2022-10-20 16:03 ` [PATCH 12/12] arm64: dts: ti: k3-j721s2: Enable I2C " Andrew Davis
2022-10-20 22:16 ` [PATCH 00/12] TI J7x Disable Incomplete DT Nodes Bryan Brattlof
2022-10-28 13:20 ` Vignesh Raghavendra
2022-10-28 13:31 ` Nishanth Menon
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