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Diffstat (limited to 'target/linux/bcm27xx/patches-6.1/950-0797-overlays-jedec-spi-nor-Add-speed-parameter.patch')
-rw-r--r--target/linux/bcm27xx/patches-6.1/950-0797-overlays-jedec-spi-nor-Add-speed-parameter.patch308
1 files changed, 308 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-6.1/950-0797-overlays-jedec-spi-nor-Add-speed-parameter.patch b/target/linux/bcm27xx/patches-6.1/950-0797-overlays-jedec-spi-nor-Add-speed-parameter.patch
new file mode 100644
index 0000000000..66c147837d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-6.1/950-0797-overlays-jedec-spi-nor-Add-speed-parameter.patch
@@ -0,0 +1,308 @@
+From 76c457e7e2920342637b1955fbaadf2aae282f05 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 23 Jun 2023 09:48:59 +0100
+Subject: [PATCH] overlays: jedec-spi-nor: Add speed parameter
+
+Add a speed parameter to the jedec-spi-nor overlay to allow much
+faster accesses, taking the opportunity to simplify the internals.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README | 8 +-
+ .../dts/overlays/jedec-spi-nor-overlay.dts | 245 +++---------------
+ 2 files changed, 41 insertions(+), 212 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2557,9 +2557,11 @@ Name: jedec-spi-nor
+ Info: Adds support for JEDEC-compliant SPI NOR flash devices. (Note: The
+ "jedec,spi-nor" kernel driver was formerly known as "m25p80".)
+ Load: dtoverlay=jedec-spi-nor,<param>=<val>
+-Params: flash-spi<n>-<m> Enables flash device on SPI<n>, CS#<m>.
+- flash-fastr-spi<n>-<m> Enables flash device with fast read capability
+- on SPI<n>, CS#<m>.
++Params: spi<n>-<m> Enable flash device on SPI<n>, CS#<m>
++ fastr Add fast read capability to the flash device
++ speed Maximum SPI frequency (Hz)
++ flash-spi<n>-<m> Same as spi<n>-<m> (deprecated)
++ flash-fastr-spi<n>-<m> Same as spi<n>->m>,fastr (deprecated)
+
+
+ Name: justboom-both
+--- a/arch/arm/boot/dts/overlays/jedec-spi-nor-overlay.dts
++++ b/arch/arm/boot/dts/overlays/jedec-spi-nor-overlay.dts
+@@ -3,6 +3,7 @@
+ // dtparams:
+ // flash-spi<n>-<m> - Enables flash device on SPI<n>, CS#<m>.
+ // flash-fastr-spi<n>-<m> - Enables flash device with fast read capability on SPI<n>, CS#<m>.
++// speed - Set the SPI clock speed in Hz
+ //
+ // If devices are present on SPI1 or SPI2, those interfaces must be enabled with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays.
+ //
+@@ -79,50 +80,23 @@
+ };
+ };
+
+- // enable flash on spi0.0
++ // Enable fast read for device
++ // Use default active low interrupt signalling.
+ fragment@8 {
+- target = <&spi0>;
++ target = <&spi_nor>;
+ __dormant__ {
+- status = "okay";
+- #address-cells = <1>;
+- #size-cells = <0>;
+- spi_nor_00: spi_nor@0 {
+- #address-cells = <1>;
+- #size-cells = <1>;
+- compatible = "jedec,spi-nor";
+- reg = <0>;
+- spi-max-frequency = <500000>;
+- };
++ m25p,fast-read;
+ };
+ };
+
+- // enable flash on spi0.1
+- fragment@9 {
++ payload: fragment@100 {
+ target = <&spi0>;
+- __dormant__ {
++ __overlay__ {
+ status = "okay";
+- #address-cells = <1>;
+- #size-cells = <0>;
+- spi_nor_01: spi_nor@1 {
+- #address-cells = <1>;
+- #size-cells = <1>;
+- compatible = "jedec,spi-nor";
+- reg = <1>;
+- spi-max-frequency = <500000>;
+- };
+- };
+- };
++ #address-cells = <1>;
++ #size-cells = <0>;
+
+- // enable flash on spi1.0
+- fragment@10 {
+- target = <&spi1>;
+- __dormant__ {
+- status = "okay";
+- #address-cells = <1>;
+- #size-cells = <0>;
+- spi_nor_10: spi_nor@0 {
+- #address-cells = <1>;
+- #size-cells = <1>;
++ spi_nor: spi_nor@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <500000>;
+@@ -130,180 +104,33 @@
+ };
+ };
+
+- // enable flash on spi1.1
+- fragment@11 {
+- target = <&spi1>;
+- __dormant__ {
+- status = "okay";
+- #address-cells = <1>;
+- #size-cells = <0>;
+- spi_nor_11: spi_nor@1 {
+- #address-cells = <1>;
+- #size-cells = <1>;
+- compatible = "jedec,spi-nor";
+- reg = <1>;
+- spi-max-frequency = <500000>;
+- };
+- };
+- };
+-
+- // enable flash on spi1.2
+- fragment@12 {
+- target = <&spi1>;
+- __dormant__ {
+- status = "okay";
+- #address-cells = <1>;
+- #size-cells = <0>;
+- spi_nor_12: spi_nor@2 {
+- #address-cells = <1>;
+- #size-cells = <1>;
+- compatible = "jedec,spi-nor";
+- reg = <2>;
+- spi-max-frequency = <500000>;
+- };
+- };
+- };
+-
+- // enable flash on spi2.0
+- fragment@13 {
+- target = <&spi2>;
+- __dormant__ {
+- status = "okay";
+- #address-cells = <1>;
+- #size-cells = <0>;
+- spi_nor_20: spi_nor@0 {
+- #address-cells = <1>;
+- #size-cells = <1>;
+- compatible = "jedec,spi-nor";
+- reg = <0>;
+- spi-max-frequency = <500000>;
+- };
+- };
+- };
+-
+- // enable flash on spi2.1
+- fragment@14 {
+- target = <&spi2>;
+- __dormant__ {
+- status = "okay";
+- #address-cells = <1>;
+- #size-cells = <0>;
+- spi_nor_21: spi_nor@1 {
+- #address-cells = <1>;
+- #size-cells = <1>;
+- compatible = "jedec,spi-nor";
+- reg = <1>;
+- spi-max-frequency = <500000>;
+- };
+- };
+- };
+-
+- // enable flash on spi2.2
+- fragment@15 {
+- target = <&spi2>;
+- __dormant__ {
+- status = "okay";
+- #address-cells = <1>;
+- #size-cells = <0>;
+- spi_nor_22: spi_nor@2 {
+- #address-cells = <1>;
+- #size-cells = <1>;
+- compatible = "jedec,spi-nor";
+- reg = <2>;
+- spi-max-frequency = <500000>;
+- };
+- };
+- };
+-
+- // Enable fast read for device on spi0.0.
+- // Use default active low interrupt signalling.
+- fragment@16 {
+- target = <&spi_nor_00>;
+- __dormant__ {
+- m25p,fast-read;
+- };
+- };
+-
+- // Enable fast read for device on spi0.1.
+- // Use default active low interrupt signalling.
+- fragment@17 {
+- target = <&spi_nor_01>;
+- __dormant__ {
+- m25p,fast-read;
+- };
+- };
+-
+- // Enable fast read for device on spi1.0.
+- // Use default active low interrupt signalling.
+- fragment@18 {
+- target = <&spi_nor_10>;
+- __dormant__ {
+- m25p,fast-read;
+- };
+- };
+-
+- // Enable fast read for device on spi1.1.
+- // Use default active low interrupt signalling.
+- fragment@19 {
+- target = <&spi_nor_11>;
+- __dormant__ {
+- m25p,fast-read;
+- };
+- };
+-
+- // Enable fast read for device on spi1.2.
+- // Use default active low interrupt signalling.
+- fragment@20 {
+- target = <&spi_nor_12>;
+- __dormant__ {
+- m25p,fast-read;
+- };
+- };
+-
+- // Enable fast read for device on spi2.0.
+- // Use default active low interrupt signalling.
+- fragment@21 {
+- target = <&spi_nor_20>;
+- __dormant__ {
+- m25p,fast-read;
+- };
+- };
+-
+- // Enable fast read for device on spi2.1.
+- // Use default active low interrupt signalling.
+- fragment@22 {
+- target = <&spi_nor_21>;
+- __dormant__ {
+- m25p,fast-read;
+- };
+- };
+-
+- // Enable fast read for device on spi2.2.
+- // Use default active low interrupt signalling.
+- fragment@23 {
+- target = <&spi_nor_22>;
+- __dormant__ {
+- m25p,fast-read;
+- };
+- };
+-
+ __overrides__ {
+- flash-spi0-0 = <0>,"+0+8";
+- flash-spi0-1 = <0>,"+1+9";
+- flash-spi1-0 = <0>,"+2+10";
+- flash-spi1-1 = <0>,"+3+11";
+- flash-spi1-2 = <0>,"+4+12";
+- flash-spi2-0 = <0>,"+5+13";
+- flash-spi2-1 = <0>,"+6+14";
+- flash-spi2-2 = <0>,"+7+15";
+- flash-fastr-spi0-0 = <0>,"+0+8+16";
+- flash-fastr-spi0-1 = <0>,"+1+9+17";
+- flash-fastr-spi1-0 = <0>,"+2+10+18";
+- flash-fastr-spi1-1 = <0>,"+3+11+19";
+- flash-fastr-spi1-2 = <0>,"+4+12+20";
+- flash-fastr-spi2-0 = <0>,"+5+13+21";
+- flash-fastr-spi2-1 = <0>,"+6+14+22";
+- flash-fastr-spi2-2 = <0>,"+7+15+23";
++ spi0-0 = <0>,"+0", <&payload>,"target:0=",<&spi0>, <&spi_nor>,"reg:0=0";
++ spi0-1 = <0>,"+1", <&payload>,"target:0=",<&spi0>, <&spi_nor>,"reg:0=1";
++ spi1-0 = <0>,"+2", <&payload>,"target:0=",<&spi1>, <&spi_nor>,"reg:0=0";
++ spi1-1 = <0>,"+3", <&payload>,"target:0=",<&spi1>, <&spi_nor>,"reg:0=1";
++ spi1-2 = <0>,"+4", <&payload>,"target:0=",<&spi1>, <&spi_nor>,"reg:0=2";
++ spi2-0 = <0>,"+5", <&payload>,"target:0=",<&spi2>, <&spi_nor>,"reg:0=0";
++ spi2-1 = <0>,"+6", <&payload>,"target:0=",<&spi2>, <&spi_nor>,"reg:0=1";
++ spi2-2 = <0>,"+7", <&payload>,"target:0=",<&spi2>, <&spi_nor>,"reg:0=2";
++ flash-spi0-0 = <0>,"+0", <&payload>,"target:0=",<&spi0>, <&spi_nor>,"reg:0=0";
++ flash-spi0-1 = <0>,"+1", <&payload>,"target:0=",<&spi0>, <&spi_nor>,"reg:0=1";
++ flash-spi1-0 = <0>,"+2", <&payload>,"target:0=",<&spi1>, <&spi_nor>,"reg:0=0";
++ flash-spi1-1 = <0>,"+3", <&payload>,"target:0=",<&spi1>, <&spi_nor>,"reg:0=1";
++ flash-spi1-2 = <0>,"+4", <&payload>,"target:0=",<&spi1>, <&spi_nor>,"reg:0=2";
++ flash-spi2-0 = <0>,"+5", <&payload>,"target:0=",<&spi2>, <&spi_nor>,"reg:0=0";
++ flash-spi2-1 = <0>,"+6", <&payload>,"target:0=",<&spi2>, <&spi_nor>,"reg:0=1";
++ flash-spi2-2 = <0>,"+7", <&payload>,"target:0=",<&spi2>, <&spi_nor>,"reg:0=2";
++ flash-fastr-spi0-0 = <0>,"+0+8", <&payload>,"target:0=",<&spi0>, <&spi_nor>,"reg:0=0";
++ flash-fastr-spi0-1 = <0>,"+1+8", <&payload>,"target:0=",<&spi0>, <&spi_nor>,"reg:0=1";
++ flash-fastr-spi1-0 = <0>,"+2+8", <&payload>,"target:0=",<&spi1>, <&spi_nor>,"reg:0=0";
++ flash-fastr-spi1-1 = <0>,"+3+8", <&payload>,"target:0=",<&spi1>, <&spi_nor>,"reg:0=1";
++ flash-fastr-spi1-2 = <0>,"+4+8", <&payload>,"target:0=",<&spi1>, <&spi_nor>,"reg:0=2";
++ flash-fastr-spi2-0 = <0>,"+5+8", <&payload>,"target:0=",<&spi2>, <&spi_nor>,"reg:0=0";
++ flash-fastr-spi2-1 = <0>,"+6+8", <&payload>,"target:0=",<&spi2>, <&spi_nor>,"reg:0=1";
++ flash-fastr-spi2-2 = <0>,"+7+8", <&payload>,"target:0=",<&spi2>, <&spi_nor>,"reg:0=2";
++ fastr = <0>,"+8";
++ speed = <&spi_nor>, "spi-max-frequency:0";
+ };
+ };
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-11 02:40:13 +0000