ARM: dts: imx28-lwe: Fix partitions definitions

[PATCH v3] ARM: dts: imx28-lwe: Fix partitions definitions

Posted by Lukasz Majewski 1 year, 5 months ago

The SPI-NOR memory layout has evolved during time lifetime of the
device - for example special partitions to keep track of booted devices
for A/B booting scheme were added.

Signed-off-by: Lukasz Majewski <lukma@denx.de>

---
Changes for v3:
- Split patches
- Modify the subject prefix

Changes for v2:
- Add more descriptive commit message
- Replace e.g. partition@4 with partition@fe0000
- Use lower case letters for HEX offsets descriptions
---
 arch/arm/boot/dts/nxp/mxs/imx28-lwe.dtsi | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/arch/arm/boot/dts/nxp/mxs/imx28-lwe.dtsi b/arch/arm/boot/dts/nxp/mxs/imx28-lwe.dtsi
index 69fcb0dde940..a954fef8bd8e 100644
--- a/arch/arm/boot/dts/nxp/mxs/imx28-lwe.dtsi
+++ b/arch/arm/boot/dts/nxp/mxs/imx28-lwe.dtsi
@@ -133,14 +133,21 @@ partition@90000 {
 				reg = <0x90000 0x10000>;
 			};
 
-			partition@100000 {
-				label = "kernel";
-				reg = <0x100000 0x400000>;
+			partition@a0000 {
+				label = "rescue";
+				reg = <0xa0000 0xf40000>;
 			};
 
-			partition@500000 {
-				label = "swupdate";
-				reg = <0x500000 0x800000>;
+			partition@fe0000 {
+				/* 1st sector for SPL boot img source data */
+				label = "spl-boot-data1";
+				reg = <0xfe0000 0x10000>;
+			};
+
+			partition@ff0000 {
+				/* 2nd sector for SPL boot img source data */
+				label = "spl-boot-data2";
+				reg = <0xff0000 0x10000>;
 			};
 		};
 	};
-- 
2.39.2

Re: [PATCH v3] ARM: dts: imx28-lwe: Fix partitions definitions

Posted by Shawn Guo 1 year, 5 months ago

On Mon, Sep 02, 2024 at 01:46:50PM +0200, Lukasz Majewski wrote:
> The SPI-NOR memory layout has evolved during time lifetime of the
> device - for example special partitions to keep track of booted devices
> for A/B booting scheme were added.
> 
> Signed-off-by: Lukasz Majewski <lukma@denx.de>

Applied all, thanks!

[PATCH] ARM: dts: imx28-lwe: Reduce maximal SPI frequency

Posted by Lukasz Majewski 1 year, 5 months ago

Due to some operational problems (HW) the maximal speed of the SPI
frequency for flash memory has been reduced by half.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
---
 arch/arm/boot/dts/nxp/mxs/imx28-lwe.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/nxp/mxs/imx28-lwe.dtsi b/arch/arm/boot/dts/nxp/mxs/imx28-lwe.dtsi
index a954fef8bd8e..0fc74eeac217 100644
--- a/arch/arm/boot/dts/nxp/mxs/imx28-lwe.dtsi
+++ b/arch/arm/boot/dts/nxp/mxs/imx28-lwe.dtsi
@@ -109,7 +109,7 @@ &ssp3 {
 
 	flash@0 {
 		compatible = "jedec,spi-nor";
-		spi-max-frequency = <40000000>;
+		spi-max-frequency = <20000000>;
 		reg = <0>;
 
 		partitions {
-- 
2.39.2

[PATCH] ARM: dts: imx28-lwe: Remove saif[01] definitions

Posted by Lukasz Majewski 1 year, 5 months ago

The saif[01] nodes are specific to other group of the imx287
based devices, so need to be moved to different devices description file.

Leaving them here causes issues with next revision of XEA device.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
---
 arch/arm/boot/dts/nxp/mxs/imx28-lwe.dtsi | 17 -----------------
 1 file changed, 17 deletions(-)

diff --git a/arch/arm/boot/dts/nxp/mxs/imx28-lwe.dtsi b/arch/arm/boot/dts/nxp/mxs/imx28-lwe.dtsi
index 0fc74eeac217..410dfe17f8ca 100644
--- a/arch/arm/boot/dts/nxp/mxs/imx28-lwe.dtsi
+++ b/arch/arm/boot/dts/nxp/mxs/imx28-lwe.dtsi
@@ -55,23 +55,6 @@ &i2c0 {
 	status = "okay";
 };
 
-&saif0 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&saif0_pins_a>;
-	#sound-dai-cells = <0>;
-	assigned-clocks = <&clks 53>;
-	assigned-clock-rates = <12000000>;
-	status = "okay";
-};
-
-&saif1 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&saif1_pins_a>;
-	fsl,saif-master = <&saif0>;
-	#sound-dai-cells = <0>;
-	status = "okay";
-};
-
 &spi3_pins_a {
 	fsl,pinmux-ids = <
 		MX28_PAD_AUART2_RX__SSP3_D4
-- 
2.39.2