plat/arm/sgi: add chip_id and multi_chip_mode to platform variant info
Multi-chip platforms have two or more identical chips connected using a
high speed coherent link. In order to identify such platforms,
add chip_id and multi_chip_mode information in the platform variant
info structure. The values of these two new elements is populated
during boot.
Change-Id: Ie6e89cb33b3f0f408814f6239cd06647053e23ed
Signed-off-by: Vijayenthiran Subramaniam <vijayenthiran.subramaniam@arm.com>
diff --git a/plat/arm/board/rdn1edge/rdn1edge_plat.c b/plat/arm/board/rdn1edge/rdn1edge_plat.c
index 6f4c83c..f7c7e9b 100644
--- a/plat/arm/board/rdn1edge/rdn1edge_plat.c
+++ b/plat/arm/board/rdn1edge/rdn1edge_plat.c
@@ -18,6 +18,12 @@
return mmio_read_32(SID_REG_BASE + SID_SYSTEM_CFG_OFFSET);
}
+unsigned int plat_arm_sgi_get_multi_chip_mode(void)
+{
+ return (mmio_read_32(SID_REG_BASE + SID_NODE_ID_OFFSET) &
+ SID_MULTI_CHIP_MODE_MASK) >> SID_MULTI_CHIP_MODE_SHIFT;
+}
+
void bl31_platform_setup(void)
{
sgi_bl31_common_platform_setup();