sunxi: d1: board: sunxi: fdt fixup of dram size for d1 platforms #8
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On D1 boards, the U-Boot SPL detects the DRAM size and patches the DTB accordingly. Later, if U-Boot uses a different DTB for booting Linux, it copies only the dtb reserved-memory blocks, but not the dtb memory block. Meanwhile, current mainline Linux device trees for D1 platforms do not include a memory block. This change enables adding or updating the memory block in the DTB passed to Linux. Signed-off-by: Sergey Matyukevich <[email protected]>
Most part of D1 boards listed on linux-sunxi.org have 512MB or more DRAM. So add new option for SUNXI_MINIMUM_DRAM_MB and make it default for SUNXI D1 boards. Signed-off-by: Sergey Matyukevich <[email protected]>
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Hi @smaeul
While adding support for this board in Buildroot, I discovered that I couldn't simply switch to using the mainline Linux DTS.
This merge request includes two patches that enable its use without further modifications. In brief:
Please let me know if I got it wrong and there is a proper default way to handle this.
Regards,
Sergey