These patches bring initial boot support for RPI5. Without it the latest master fails with the message: > DRAM: mbox: Timeout waiting for response > bcm2835: Could not query ARM memory size
With those patches and rpi_arm64_defconfig (with disabled CONFIG_VIDEO_BCM2835) I'm able to get a working u-boot prompt (over serial). FDT comes from firmware (EEPROM). > U-Boot 2024.01-rc3-00003 > > DRAM: 1016 MiB (effective 8 GiB) > mbox: Header response code invalid > bcm2835: Could not query board revision > FDT model : Raspberry Pi 5 Model B Rev 1.0 > Core: 14 devices, 7 uclasses, devicetree: board > MMC: > Loading Environment from FAT... ** Bad device specification mmc 0 ** > In: serial,usbkbd > Out: serial,vidconsole > Err: serial,vidconsole > Net: No ethernet found. > starting USB... > No working controllers found > Hit any key to stop autoboot: 0 > No working controllers found > No ethernet found. > No ethernet found. > U-Boot> These patches are based on v2024.01-rc3 and tested with RPI5 8GB. Known issues: * CONFIG_VIDEO_BCM2835 doesn't work. * MBOX get board revision (0x10002) doesn't work (the response status is 0x8000_0001). Looks like a number of tags doesn't work anymore (board/serial/MAC) but could be fetched from FW FDT. v2: explicitly set .data section for rpi_bcm283x_mbox_addr due to relocation issue update memory map with VPU range add a patch to get human readable model from FW FDT Dmitry Malkin (3): rpi5: add initial memory map for bcm2712 rpi5: add alternative way to get MBOX address via FDT node rpi5: get_board is no longer works. Print model name from FW FDT arch/arm/mach-bcm283x/include/mach/base.h | 1 + arch/arm/mach-bcm283x/include/mach/mbox.h | 4 +-- arch/arm/mach-bcm283x/init.c | 40 ++++++++++++++++++++++- board/raspberrypi/rpi/rpi.c | 6 ++++ 4 files changed, 48 insertions(+), 3 deletions(-) -- 2.40.1
