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| author | Ahmad Fatoum <a.fatoum@pengutronix.de> | 2024-04-15 07:32:53 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2024-04-16 12:22:47 +0200 |
| commit | c55fc4d1dbea8dc3d389b0d42844dfac8cc7b93e (patch) | |
| tree | d2b3fa2088bcc70390dabb6bb0f4998f2c4422fe | |
| parent | 26b637912f3034c657730131bed976083fce511f (diff) | |
| download | barebox-c55fc4d1dbea.tar.gz barebox-c55fc4d1dbea.tar.xz | |
ARM: dts: rk356x: describe serial reboot mode
The PMUGRF (Power Management Unit - General Register File) of the RK3568
has a general purpose register checked by the BootROM on power-on to
decide on whether to drop to recovery mode (rk-usb-loader/rkdeveloptool).
Describe this in the device tree, so it's possible to use, e.g.
global.system.reboot_mode.next=serial reset
to force falling into serial (USB) boot mode.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20240415053253.369354-1-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | arch/arm/dts/rk356x.dtsi | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/dts/rk356x.dtsi b/arch/arm/dts/rk356x.dtsi index 923e18e7cc..7fd5f72a59 100644 --- a/arch/arm/dts/rk356x.dtsi +++ b/arch/arm/dts/rk356x.dtsi @@ -1,6 +1,12 @@ // SPDX-License-Identifier: (GPL-2.0+ OR MIT) +#include <dt-bindings/soc/rockchip,boot-mode.h> + / { + aliases { + pmugrf.reboot_mode = &reboot_mode_pmugrf; + }; + chosen { barebox,bootsource-mmc0 = &sdhci; barebox,bootsource-mmc1 = &sdmmc0; @@ -31,3 +37,12 @@ resets = <&cru SRST_TRNG_NS>; }; }; + +&pmugrf { + reboot_mode_pmugrf: reboot-mode { + compatible = "syscon-reboot-mode"; + offset = <0x200>; + mode-normal = <BOOT_NORMAL>; + mode-serial = <0xef08a53c>; /* rk-usb-loader */ + }; +}; |