From 4c14fa964ef6afceb110d3ce5906c55fe70ffc1c Mon Sep 17 00:00:00 2001 From: claudio Date: Tue, 28 May 2024 09:19:04 +0000 Subject: [PATCH] Remove the bcmmbox_write(BCMMBOX_CHANPM, ...) call in bcmmbox_attach(). This command locks up my RaspberryPi 4 while it seems to have no effect for other devices. First of all u-boot will already enable power for us plus it seems that more is needed than just this write to be really effective. Why my rpi4 locks up is still unclear but this is now a pure u-boot issue. Tested by kettenis@ on his working rpi4 and rpi2 OK kettenis@ --- sys/dev/fdt/bcm2835_mbox.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/sys/dev/fdt/bcm2835_mbox.c b/sys/dev/fdt/bcm2835_mbox.c index 65114d8ad2f..c58741d70aa 100644 --- a/sys/dev/fdt/bcm2835_mbox.c +++ b/sys/dev/fdt/bcm2835_mbox.c @@ -1,4 +1,4 @@ -/* $OpenBSD: bcm2835_mbox.c,v 1.4 2022/08/27 20:31:45 mglocker Exp $ */ +/* $OpenBSD: bcm2835_mbox.c,v 1.5 2024/05/28 09:19:04 claudio Exp $ */ /* * Copyright (c) 2020 Tobias Heider @@ -153,15 +153,6 @@ bcmmbox_attach(struct device *parent, struct device *self, void *aux) printf("\n"); - bcmmbox_write(BCMMBOX_CHANPM, ( - (1 << VCPROP_POWER_SDCARD) | - (1 << VCPROP_POWER_UART0) | - (1 << VCPROP_POWER_USB) | - (1 << VCPROP_POWER_I2C0) | - (1 << VCPROP_POWER_I2C1) | - (1 << VCPROP_POWER_SPI) | - 0) << 4); - return; clean_dmamap: -- 2.20.1