[RFC 1/1] board: sifive: unmatched: use zero copy for initrd

[Heinrich Schuchardt]

Booting Ubuntu Impish showed the following output:

    relocaddr   = 0x00000000fff60000

    Loading Ramdisk to fa118000, end fffff19d ...

The initrd is overwriting the U-Boot binary. Booting fails.

There is no need to copy the initrd from $ramdisk_addr_r.
Set init_high = ~0UL to use zero copy.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
---
Generally copying to another memory location than $ramdisk_addr_r provides
no benefit whatsoever.

But we still should find out why the initrd relocation fails so badly.
---
 include/configs/sifive-unmatched.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/configs/sifive-unmatched.h b/include/configs/sifive-unmatched.h
index d63a5f62fb..8dcfffedbe 100644
--- a/include/configs/sifive-unmatched.h
+++ b/include/configs/sifive-unmatched.h
@@ -67,6 +67,7 @@
 	"scriptaddr=0x88100000\0" \
 	"pxefile_addr_r=0x88200000\0" \
 	"ramdisk_addr_r=0x88300000\0" \
+	"initrd_high=0xffffffffffffffff\0" \
 	"kernel_comp_addr_r=0x90000000\0" \
 	"kernel_comp_size=0x4000000\0" \
 	"type_guid_gpt_loader1=" TYPE_GUID_LOADER1 "\0" \
--
2.30.2