+++ /dev/null
-From b3a070cf6fe04129d2c174e45c14b98a759e0402 Mon Sep 17 00:00:00 2001
-From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
-Date: Fri, 11 Dec 2020 12:22:01 +0100
-Subject: [PATCH] ARM: dts: bcm2711: Add reserved memory template to
- hold firmware configuration
-
-RPi4's co-processor will copy the board's bootloader[1] configuration
-into memory for the OS to consume. Specifically, for the bootloader
-configuration and upgrade user-space routines to query it through
-nvmem's sysfs interface.
-
-Introduce a reserved-memory area template for the co-processor to edit
-before booting the system so as for Linux not to overwrite that memory
-and to expose it as an nvmem device.
-
-Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
-
-[1] https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2711_bootloader_config.md
----
-
-Changes since v1:
- - Introduce compatible string
- - Change alias name to something more explicit
----
- arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 17 +++++++++++++++++
- 1 file changed, 17 insertions(+)
-
---- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
-+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
-@@ -24,6 +24,7 @@
- emmc2bus = &emmc2bus;
- ethernet0 = &genet;
- pcie0 = &pcie0;
-+ blconfig = &blconfig;
- };
-
- leds {
-@@ -215,6 +216,22 @@
- status = "okay";
- };
-
-+&rmem {
-+ /*
-+ * RPi4's co-processor will copy the board's bootloader configuration
-+ * into memory for the OS to consume. It'll also update this node with
-+ * its placement information.
-+ */
-+ blconfig: nvram@0 {
-+ compatible = "raspberrypi,bootloader-config", "nvmem-rmem";
-+ #address-cells = <1>;
-+ #size-cells = <1>;
-+ reg = <0x0 0x0 0x0>;
-+ no-map;
-+ status = "disabled";
-+ };
-+};
-+
- /* SDHCI is used to control the SDIO for wireless */
- &sdhci {
- #address-cells = <1>;