aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/brcm2708/patches-4.14/950-0264-Add-overlay-for-JEDEC-SPI-NOR-flash.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/brcm2708/patches-4.14/950-0264-Add-overlay-for-JEDEC-SPI-NOR-flash.patch')
-rw-r--r--target/linux/brcm2708/patches-4.14/950-0264-Add-overlay-for-JEDEC-SPI-NOR-flash.patch352
1 files changed, 352 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0264-Add-overlay-for-JEDEC-SPI-NOR-flash.patch b/target/linux/brcm2708/patches-4.14/950-0264-Add-overlay-for-JEDEC-SPI-NOR-flash.patch
new file mode 100644
index 0000000000..50c04764f9
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0264-Add-overlay-for-JEDEC-SPI-NOR-flash.patch
@@ -0,0 +1,352 @@
+From 0222de711db11507773604084e20ad6d6960d30b Mon Sep 17 00:00:00 2001
+From: wavelet2 <a3d35232@btinternet.com>
+Date: Mon, 26 Mar 2018 21:05:10 +0100
+Subject: [PATCH 264/454] Add overlay for JEDEC SPI NOR flash
+
+---
+ arch/arm/boot/dts/overlays/Makefile | 1 +
+ arch/arm/boot/dts/overlays/README | 9 +
+ .../dts/overlays/jedec-spi-nor-overlay.dts | 309 ++++++++++++++++++
+ 3 files changed, 319 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/jedec-spi-nor-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -55,6 +55,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ iqaudio-dac.dtbo \
+ iqaudio-dacplus.dtbo \
+ iqaudio-digi-wm8804-audio.dtbo \
++ jedec-spi-nor.dtbo \
+ justboom-dac.dtbo \
+ justboom-digi.dtbo \
+ lirc-rpi.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -939,6 +939,15 @@ Params: card_name Override
+ dai stream name.
+
+
++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>.
++
++
+ Name: justboom-dac
+ Info: Configures the JustBoom DAC HAT, Amp HAT, DAC Zero and Amp Zero audio
+ cards
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/jedec-spi-nor-overlay.dts
+@@ -0,0 +1,309 @@
++// Overlay for JEDEC SPI-NOR Flash Devices (aka m25p80)
++
++// 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>.
++//
++// 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.
++//
++// Example: A single flash device with fast read capability on SPI0, CS#0:
++// dtoverlay=jedec-spi-nor:flash-fastr-spi0-0
++
++/dts-v1/;
++/plugin/;
++
++/ {
++ compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
++
++ // disable spi-dev on spi0.0
++ fragment@0 {
++ target = <&spidev0>;
++ __dormant__ {
++ status = "disabled";
++ };
++ };
++
++ // disable spi-dev on spi0.1
++ fragment@1 {
++ target = <&spidev1>;
++ __dormant__ {
++ status = "disabled";
++ };
++ };
++
++ // disable spi-dev on spi1.0
++ fragment@2 {
++ target-path = "spi1/spidev@0";
++ __dormant__ {
++ status = "disabled";
++ };
++ };
++
++ // disable spi-dev on spi1.1
++ fragment@3 {
++ target-path = "spi1/spidev@1";
++ __dormant__ {
++ status = "disabled";
++ };
++ };
++
++ // disable spi-dev on spi1.2
++ fragment@4 {
++ target-path = "spi1/spidev@2";
++ __dormant__ {
++ status = "disabled";
++ };
++ };
++
++ // disable spi-dev on spi2.0
++ fragment@5 {
++ target-path = "spi2/spidev@0";
++ __dormant__ {
++ status = "disabled";
++ };
++ };
++
++ // disable spi-dev on spi2.1
++ fragment@6 {
++ target-path = "spi2/spidev@1";
++ __dormant__ {
++ status = "disabled";
++ };
++ };
++
++ // disable spi-dev on spi2.2
++ fragment@7 {
++ target-path = "spi2/spidev@2";
++ __dormant__ {
++ status = "disabled";
++ };
++ };
++
++ // enable flash on spi0.0
++ fragment@8 {
++ target = <&spi0>;
++ __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>;
++ };
++ };
++ };
++
++ // enable flash on spi0.1
++ fragment@9 {
++ target = <&spi0>;
++ __dormant__ {
++ 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>;
++ };
++ };
++ };
++
++ // 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>;
++ compatible = "jedec,spi-nor";
++ reg = <0>;
++ spi-max-frequency = <500000>;
++ };
++ };
++ };
++
++ // 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";
++ };
++};
++
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-13 10:50:53 +0000