Re: [PATCH v2 0/3] board: sophgo: milkv_duo: enable standard boot

[Yao Zi <me@ziyao.cc>]

On Sat, Oct 17, 2026 at 05:17:11PM -0300, Hiago De Franco wrote:
> Hi Yao Zi,
> 
> On Fri, Oct 09, 2026 at 11:58:21AM -0300, Hiago De Franco wrote:
> > The Milk-V Duo (CV1800B, 64MB) does not enable CONFIG_BOOTSTD_DEFAULTS
> > and has no environment file, so U-Boot has no bootcmd and none of the
> > kernel_addr_r, fdt_addr_r, ramdisk_addr_r, ... variables required by
> > the extlinux bootmeth.
> > 
> > Enable CONFIG_BOOTSTD_DEFAULTS and add a milkv_duo.env with a memory
> > layout that fits into the 64MB of DRAM:
> > 
> >   0x80200000  kernel_addr_r       (16MB)
> >   0x81200000  kernel_comp_addr_r  (16MB, Image.gz decompression)
> >   0x82200000  fdt_addr_r
> >   0x82300000  scriptaddr
> >   0x82400000  pxefile_addr_r
> >   0x82500000  ramdisk_addr_r
> > 
> > Also reduce CONFIG_STACK_SIZE to 1MB. LMB reserves CONFIG_STACK_SIZE
> > below the relocated stack pointer, and the default 16MB left only about
> > 1.4MB between ramdisk_addr_r and the reserved region. With 1MB, about
> > 16MB are available for an initrd.
> > 
> > This series depends on Zhuxu Ran's "riscv: sophgo: Use upstream
> > devicetrees for CV18xx boards" (v5), which sets CONFIG_DEFAULT_DEVICE_TREE
> > to sophgo/<board>, so that fdtfile matches the Linux devicetree install
> > path (sophgo/cv1800b-milkv-duo.dtb and sophgo/sg2002-milkv-duo256m.dtb).
> > 
> > Link: https://lore.kernel.org/all/20260927-milkv-duo-upstream-dts-v5-0-7f64983e59e1@zohomail.com/
> > 
> > Tested on Milk-V Duo, booting Linux through "bootflow scan" and an
> > extlinux.conf on the SD card.
> > 
> > Signed-off-by: Hiago De Franco <hfranco@baylibre.com>
> 
> just a ping about this patch, I do not know if it was picked
> yet or If I should wait and rebase on v2027.01-rc1. Can you help please?

I'm only reviewer of the RISC-V architecture, and don't help with picking
patches etc :)

And I think the series (Zhuxu's one) on which it depends hasn't been merged
yet?

Best regards,
Yao Zi