--- /dev/null
+From c63b13bddf317347ba0b69807c1591526d50ba47 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 7 May 2019 14:29:38 +0100
+Subject: [PATCH] BCM270X_DT: Add non-removable clone of mmc node
+
+non-removable is a boolean property, and as such can't be unset by an
+overlay if it is set in a base DTB. Until now the workaround for this
+problem has been for overlays to clone non-removable nodes without
+the offending property, but this involves a lot of unnecessary
+replication. Instead, add a clone of the mmc node with non-removable
+already set to the base DTB, selecting the required version using
+the status properties.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/boot/dts/bcm2708-rpi-0-w.dts | 4 +--
+ arch/arm/boot/dts/bcm2708-rpi.dtsi | 3 +-
+ arch/arm/boot/dts/bcm270x.dtsi | 13 ++++++++
+ arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts | 5 ++--
+ arch/arm/boot/dts/bcm2710-rpi-3-b.dts | 5 ++--
+ arch/arm/boot/dts/overlays/mmc-overlay.dts | 7 +++++
+ arch/arm/boot/dts/overlays/sdio-overlay.dts | 33 +++++++--------------
+ 7 files changed, 38 insertions(+), 32 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2708-rpi-0-w.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-0-w.dts
+@@ -14,6 +14,7 @@
+ aliases {
+ serial0 = &uart1;
+ serial1 = &uart0;
++ mmc1 = &mmcnr;
+ };
+ };
+
+@@ -73,10 +74,9 @@
+ };
+ };
+
+-&mmc {
++&mmcnr {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdio_pins>;
+- non-removable;
+ bus-width = <4>;
+ status = "okay";
+ };
+--- a/arch/arm/boot/dts/bcm2708-rpi.dtsi
++++ b/arch/arm/boot/dts/bcm2708-rpi.dtsi
+@@ -118,7 +118,8 @@
+ sd_force_pio = <&sdhost>,"brcm,force-pio?";
+ sd_pio_limit = <&sdhost>,"brcm,pio-limit:0";
+ sd_debug = <&sdhost>,"brcm,debug";
+- sdio_overclock = <&mmc>,"brcm,overclock-50:0";
++ sdio_overclock = <&mmc>,"brcm,overclock-50:0",
++ <&mmcnr>,"brcm,overclock-50:0";
+ axiperf = <&axiperf>,"status";
+ };
+ };
+--- a/arch/arm/boot/dts/bcm270x.dtsi
++++ b/arch/arm/boot/dts/bcm270x.dtsi
+@@ -79,6 +79,19 @@
+ status = "disabled";
+ };
+
++ /* A clone of mmc but with non-removable set */
++ mmcnr: mmcnr@7e300000 {
++ compatible = "brcm,bcm2835-mmc", "brcm,bcm2835-sdhci";
++ reg = <0x7e300000 0x100>;
++ interrupts = <2 30>;
++ clocks = <&clocks BCM2835_CLOCK_EMMC>;
++ dmas = <&dma 11>;
++ dma-names = "rx-tx";
++ brcm,overclock-50 = <0>;
++ non-removable;
++ status = "disabled";
++ };
++
+ hvs: hvs@7e400000 {
+ /* Add alias */
+ status = "disabled";
+--- a/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
+@@ -15,6 +15,7 @@
+ aliases {
+ serial0 = &uart1;
+ serial1 = &uart0;
++ mmc1 = &mmcnr;
+ };
+ };
+
+@@ -74,13 +75,11 @@
+ };
+ };
+
+-&mmc {
++&mmcnr {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdio_pins>;
+- non-removable;
+ bus-width = <4>;
+ status = "okay";
+- brcm,overclock-50 = <0>;
+ };
+
+ &firmware {
+--- a/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
+@@ -15,6 +15,7 @@
+ aliases {
+ serial0 = &uart1;
+ serial1 = &uart0;
++ mmc1 = &mmcnr;
+ };
+ };
+
+@@ -74,13 +75,11 @@
+ };
+ };
+
+-&mmc {
++&mmcnr {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdio_pins>;
+- non-removable;
+ bus-width = <4>;
+ status = "okay";
+- brcm,overclock-50 = <0>;
+ };
+
+ &soc {
+--- a/arch/arm/boot/dts/overlays/mmc-overlay.dts
++++ b/arch/arm/boot/dts/overlays/mmc-overlay.dts
+@@ -33,6 +33,13 @@
+ };
+ };
+
++ fragment@3 {
++ target = <&mmcnr>;
++ __overlay__ {
++ status = "disabled";
++ };
++ };
++
+ __overrides__ {
+ overclock_50 = <&frag0>,"brcm,overclock-50:0";
+ };
+--- a/arch/arm/boot/dts/overlays/sdio-overlay.dts
++++ b/arch/arm/boot/dts/overlays/sdio-overlay.dts
+@@ -1,39 +1,26 @@
+ /dts-v1/;
+ /plugin/;
+
+-/* Enable SDIO from MMC interface via GPIOs 22-27. Includes sdhost overlay. */
++/* Enable SDIO from MMC interface via various GPIO groups */
+
+ /{
+ compatible = "brcm,bcm2835";
+
+ fragment@0 {
+- target = <&mmc>;
++ target = <&mmcnr>;
+ __overlay__ {
+ status = "disabled";
+ };
+ };
+
+ fragment@1 {
+- target = <&soc>;
+- __overlay__ {
+- #address-cells = <1>;
+- #size-cells = <1>;
+-
+- sdio_ovl: sdio@7e300000 {
+- compatible = "brcm,bcm2835-mmc",
+- "brcm,bcm2835-sdhci";
+- reg = <0x7e300000 0x100>;
+- interrupts = <2 30>;
+- clocks = <&clocks 28/*BCM2835_CLOCK_EMMC*/>;
+- dmas = <&dma 11>;
+- dma-names = "rx-tx";
+- brcm,overclock-50 = <0>;
+- status = "okay";
+- pinctrl-names = "default";
+- pinctrl-0 = <&sdio_ovl_pins>;
+- non-removable;
+- bus-width = <4>;
+- };
++ target = <&mmc>;
++ sdio_ovl: __overlay__ {
++ pinctrl-0 = <&sdio_ovl_pins>;
++ pinctrl-names = "default";
++ non-removable;
++ bus-width = <4>;
++ status = "okay";
+ };
+ };
+
+@@ -75,7 +62,7 @@
+ fragment@6 {
+ target-path = "/aliases";
+ __overlay__ {
+- mmc1 = "/soc/sdio@7e300000";
++ mmc1 = "/soc/mmc@7e300000";
+ };
+ };
+
projects / openwrt / openwrt.git / blobdiff