Hi,
These patches are slight update for patches posted earlier here[1]. They are adding basic support for RPi5 and are based on v2 series from Dmitry Malkin[2].
What changed:
* Initial memory map now includes whole first 1GB of DRAM. At runtime, the firmware will adjust this size depending on whether an HDMI cable is plugged in or not. If there is HDMI monitor connected it will reserve framebufer memory region and will add simple-framebuffer device into devicetree.
* Dynamically calculate bits per pixel in video driver. This works on all prevous RPi's models that I have.
* I am dropping PCIe patch for now. I made some progress on porting changes from vendor Linux tree to U-Boot. Unfortunatly testing it is little bit tricky. They are many devices behind PCIe, but more or less all of them requires missing either "reset-controller" or "clock-controller" or "pin-controller" drivers. I was able to probe "cdns,macb" device, but access to ethernet PHY over MDIO bus is stucking. Then I ported "raspberrypi,rp1-adc" driver from vendor Linux tree, but it requires missing clock. And on top of that machine that I used for developing this crashed and I lost my PCIe changes :-|. Anyway.
These patches allows me to boot current openSUSE Tumbleweed without modification. I can see serial console log and boot process on HDMI connected monitor.
I think these patches should be enough for start. Please consider for inclusion.
Thanks, Ivan
[1] https://lore.kernel.org/all/20231218210341.30073-1-iivanov@suse.de/ [2] https://lore.kernel.org/all/CAKRNjQ0dsWozGo4n8g58m4cCEk3n=qx1R+L24WBgpo-iP1y...
Dmitry Malkin (2): rpi5: add initial memory map for bcm2712 rpi5: Use devicetree as alternative way to read IO base addresses
Ivan T. Ivanov (4): rpi5: Use devicetree to retrieve board revision bcm2835: Dynamically calculate bytes per pixel parameter mmc: bcmstb: Add support for bcm2712 SD controller configs: rpi_arm64: enable SDHCI BCMSTB driver
arch/arm/mach-bcm283x/include/mach/base.h | 5 +- arch/arm/mach-bcm283x/include/mach/mbox.h | 3 +- arch/arm/mach-bcm283x/include/mach/sdhci.h | 3 +- arch/arm/mach-bcm283x/include/mach/timer.h | 3 +- arch/arm/mach-bcm283x/include/mach/wdog.h | 3 +- arch/arm/mach-bcm283x/init.c | 74 ++++++++- board/raspberrypi/rpi/rpi.c | 22 ++- configs/rpi_arm64_defconfig | 1 + drivers/mmc/bcmstb_sdhci.c | 173 ++++++++++++++++++++- drivers/video/bcm2835.c | 18 ++- 10 files changed, 282 insertions(+), 23 deletions(-)