smallsolar/u-boot
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

rockchip: rk3399-rockpro64: Hook sysreset gpio to enable full reset

Browse Source 
The reset mechanism used by Linux to reset the SoC is known to only
partially reset the logic. A mechanism is implemented in
rk3399_force_power_on_reset to use a GPIO connected to the PMIC's
over-temperature (OTP) reset pin, which fully resets all logic.

Hook the associated GPIO where the function expects it to enable this
reset mechanism and avoid any possible side-effect of partially-reset
units.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
This commit is contained in:
Paul Kocialkowski
2024-09-26 20:31:09 +02:00
committed by Tom Rini
parent d7882f556e
commit 95433be7ac
1 changed files with 8 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
arch/arm/dts/rk3399-rockpro64-u-boot.dtsi
View File

@@ -7,6 +7,10 @@
#include "rk3399-sdram-lpddr4-100.dtsi"
/ {
config {
sysreset-gpio = <&gpio1 RK_PA6 GPIO_ACTIVE_HIGH>;
};
smbios {
compatible = "u-boot,sysinfo-smbios";
smbios {
@@ -32,6 +36,10 @@
bootph-pre-ram;
};
&gpio1 {
bootph-pre-ram;
};
&sdhci {
cap-mmc-highspeed;
mmc-ddr-1_8v;