Add tweaks to work in Mambo simulator

Mambo doesn't implement various things such as PBA SCOMs, LPC,
ChipTOD, etc... It also provides a special console hook.

This adds detection of Mambo via the /mambo node, and enables
us to boot all the way to Linux.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/hw/occ.c b/hw/occ.c
index 5b3c3a6..e1eaf30 100644
--- a/hw/occ.c
+++ b/hw/occ.c
@@ -510,6 +510,9 @@ static struct fsp_client fsp_occ_client = {
 
 void occ_send_dummy_interrupt(void)
 {
+	/* Mambo chip doesn't do this */
+	if (is_mambo_chip)
+		return;
 	xscom_writeme(OCB_OCI_OCCMISC_OR,
 		      OCB_OCI_OCIMISC_IRQ |
 		      OCB_OCI_OCIMISC_IRQ_OPAL_DUMMY);