u-boot.git/board/raspberrypi, branch v2025.07

rpi: Update environment to support booti and large initrd

2025-04-16T10:00:50Z

The existing values don't provide for decompressing an arm64 boot-image. Add those values and move things apart a bit so that a 50MB kernel can be accommodated. Signed-off-by: Simon Glass Reviewed-by: Christopher Obbard Tested-by: Christopher Obbard # CM4 1G Reviewed-by: Christopher Obbard Tested-by: Christopher Obbard # CM4 1G

rpi: Drop fdt_high and initrd_high

2025-04-16T10:00:50Z

These are not needed now since there is a bootm_size setting to keep things within the lower part of memory. Drop them. Signed-off-by: Simon Glass Reviewed-by: Tom Rini Suggested-by: Tom Rini Reviewed-by: Christopher Obbard Tested-by: Christopher Obbard # CM4 1G Reviewed-by: Christopher Obbard Tested-by: Christopher Obbard # CM4 1G

rpi: Set bootm_size to 512MB

2025-04-16T10:00:49Z

Set this option so that all boot images stay within the bottom 512MB of memory. This should allow us to drop the fdt_high and initrd_high options. Signed-off-by: Simon Glass Reviewed-by: Tom Rini Suggested-by: Tom Rini Reviewed-by: Christopher Obbard Tested-by: Christopher Obbard # CM4 1G

rpi: always set fdt_addr with firmware-provided FDT address

2025-04-16T10:00:49Z

Raspberry firmware prepares the FDT blob in memory at an address that depends on both the memory size and the blob size [1]. After commit ade243a211d6 ("rpi: passthrough of the firmware provided FDT blob") this FDT is passed to kernel through fdt_addr environment variable, handled in set_fdt_addr() function in board file. When u-boot environment is persistently saved, if a change happens in loaded FDT (e.g. for a new overlay applied), firmware produces a FDT address different from the saved one, but u-boot still use the saved one because set_fdt_addr() function does not overwrite the fdt_addr variable. So, for example, if there is a script that uses fdt commands for e.g. manipulate the bootargs, boot hangs with error libfdt fdt_check_header(): FDT_ERR_BADMAGIC Removing the fdt_addr variable in saved environment allows to boot. With this patch set_fdt_addr() function always overwrite fdt_addr value. [1] https://www.raspberrypi.org/forums//viewtopic.php?f=107&t=134018 Signed-off-by: Mauro Salvini Cc: Cédric Schieli Cc: Matthias Brugger

rpi: copy over uart clock-frequency in DT

2025-04-16T10:00:49Z

rpi5 firmware sets uart_clk clock-frequency in the firmware and patches it to the DT, copy it over when loading a new DT. Signed-off-by: Bruno Leite Reviewed-by: Peter Robinson Tested-by: Peter Robinson

arm: simplify updating ACPI table header checksum

2025-04-08T21:22:56Z

Use acpi_update_checksum() to update table header. Signed-off-by: Heinrich Schuchardt Reviewed-by: Ilias Apalodimas Reviewed-by: Matthias Brugger

Raspberry Pi: Copy Bluetooth device address in DT

2025-03-13T11:06:16Z

The firmware sets local-bd-address, copy it when loading a new DT. Signed-off-by: Fiona Klute Signed-off-by: Peter Robinson

Raspberry Pi: Keep warnings from firmware in DT, if any

2025-03-13T11:06:16Z

The /chosen/user-warnings property is created by the RPi firmware if there are warnings to report, keep it to make debugging easier. For example, if the firmware config.txt contains "dtoverlay=error-example" and that example references an undefined symbol "&nosuchdev" the warning can be read after boot: $ cat /proc/device-tree/chosen/user-warnings dterror: can't find symbol 'nosuchdev' Failed to resolve overlay 'error-example' Signed-off-by: Fiona Klute Reviewed-by: Matthias Brugger Signed-off-by: Peter Robinson

rpi: Only add frame buffer node if CONFIG_FDT_SIMPLEFB is set

2025-03-13T11:06:16Z

The functions fdt_simplefb_add_node and fdt_simplefb_enable_and_mem_rsv are only available if CONFIG_FDT_SIMPLEFB is enabled. Signed-off-by: Martin Stolpe Acked-by: Matthias Brugger Signed-off-by: Peter Robinson

rpi: Add identifiers for the new RPi 5 series

2025-03-13T11:06:16Z

The Raspberry Pi foundation have released the Raspberry Pi 500, CM5 an CM5 lite devices so add the assoicated revision identifers so we can detect them. Signed-off-by: Peter Robinson Acked-by: Matthias Brugger