[4/6] ARM: dts: bcm2711: Expose boot-loader configuration
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Message ID 20201215155627.2513-5-nsaenzjulienne@suse.de
State New, archived
Headers show
Series
  • Expose RPi4'd bootloader configuration
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Commit Message

Nicolas Saenz Julienne Dec. 15, 2020, 3:56 p.m. UTC
RPi4's co-processor will copy the board's bootloader configuration in
memory. Expose it to user-space by using 'nvmem-rmem'.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
---
 arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 11 +++++++++++
 1 file changed, 11 insertions(+)

Patch
diff mbox series

diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index c58e58e8ce39..261169eb5e3b 100644
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -26,6 +26,17 @@  aliases {
 		ethernet0 = &genet;
 		pcie0 = &pcie0;
 		eeprom = &eeprom;
+		fw_config = &fw_config;
+	};
+
+	fw_config: fw-config {
+		compatible = "nvmem-rmem";
+		memory-region = <&eeprom>;
+		/*
+		 * Will be enabled by the bootloader if the reserved memory
+		 * region is valid.
+		 */
+		status = "disabled";
 	};
 
 	leds {