README: Add description of mtnfastmba

Signed-off-by: Chen Pei <[email protected]>
cp0613 · Jan 20, 2025 · a37e394 · a37e394
1 parent c396c24
commit a37e394
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/README.adoc b/README.adoc
@@ -316,6 +316,9 @@ set *(unsigned long *)($dyninfo_addr + 40) = 0
 # set *(unsigned int *)$flag_addr = 0x2
 set *(unsigned int *)$flag_addr = 0x0
 
+# Set fast memory base reg for c908x
+# set $mtnfastmba = 0xXXXX
+
 # PLIC delegate (Only opensbi-0.9 & Linux-5.10 need it)
 set *0x081ffffc=1