astbmc/pnor: Use mbox-flash for flash accesses

If the BMC is MBOX protocol aware, request flash reads/writes over the
MBOX regs. This inits the blocklevel for pnor access with mbox-flash.

Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/hw/ast-bmc/ast-io.c b/hw/ast-bmc/ast-io.c
index 41234fb..1e826fc 100644
--- a/hw/ast-bmc/ast-io.c
+++ b/hw/ast-bmc/ast-io.c
@@ -88,6 +88,7 @@
 #include <skiboot.h>
 #include <lpc.h>
 #include <lock.h>
+#include <device.h>
 
 #include "ast.h"
 
@@ -388,6 +389,11 @@ void ast_io_init(void)
 	ast_setup_sio_irq_polarity();
 }
 
+bool ast_is_mbox_pnor(void)
+{
+	return dt_find_compatible_node(dt_root, NULL, "mbox");
+}
+
 bool ast_is_ahb_lpc_pnor(void)
 {
 	uint8_t boot_version;