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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2014-11-30 12:21:34 +1100
committerStewart Smith <stewart@linux.vnet.ibm.com>2014-12-01 14:57:44 +1100
commit9594a715b50c338f1261e88c12c120cf8e5b8bba (patch)
tree5e5a07267866843ae9b0077122300bc3396ee2e5 /core/chip.c
parent566f139cffdcef5d1ce679cc1a7cfd0c7cde3f78 (diff)
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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>
Diffstat (limited to 'core/chip.c')
-rw-r--r--core/chip.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/core/chip.c b/core/chip.c
index 272f024..b805fe1 100644
--- a/core/chip.c
+++ b/core/chip.c
@@ -20,6 +20,7 @@
#include <device.h>
static struct proc_chip *chips[MAX_CHIPS];
+bool is_mambo_chip;
uint32_t pir_to_chip_id(uint32_t pir)
{
@@ -66,6 +67,10 @@ void init_chips(void)
struct proc_chip *chip;
struct dt_node *xn;
+ /* Detect mambo chip */
+ if (dt_find_by_path(dt_root, "/mambo"))
+ is_mambo_chip = true;
+
/* We walk the chips based on xscom nodes in the tree */
dt_for_each_compatible(dt_root, xn, "ibm,xscom") {
uint32_t id = dt_get_chip_id(xn);