Add arch_lmb_reserve() implemented using arch_lmb_reserve_generic().
It is rather likely this architecture also needs to cover U-Boot with
LMB before booting Linux.
Signed-off-by: Marek Vasut <marek.vasut+rene...@gmail.com>
Cc: Chris Zankel <ch...@zankel.net>
Cc: Simon Goldschmidt <simon.k.r.goldschm...@gmail.com>
Cc: Tom Rini <tr...@konsulko.com>
---
V2: No change
---
arch/xtensa/lib/bootm.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/xtensa/lib/bootm.c b/arch/xtensa/lib/bootm.c
index bb1e2886ab..277af18168 100644
--- a/arch/xtensa/lib/bootm.c
+++ b/arch/xtensa/lib/bootm.c
@@ -197,3 +197,15 @@ int do_bootm_linux(int flag, int argc, char *argv[],
bootm_headers_t *images)
return 1;
}
+static ulong get_sp(void)
+{
+ ulong ret;
+
+ asm("mov %0, a1" : "=r"(ret) : );
+ return ret;
+}
+
+void arch_lmb_reserve(struct lmb *lmb)
+{
+ arch_lmb_reserve_generic(lmb, get_sp(), gd->ram_top, 4096);
+}
--
2.33.0
