u-boot: Fix CPU2 errata on MPC8548CDS board
This patch apply workaround of CPU2 errata on MPC8548CDS board.
Signed-off-by:Ebony Zhu <ebony.zhu@freescale.com>
diff --git a/board/cds/mpc8548cds/mpc8548cds.c b/board/cds/mpc8548cds/mpc8548cds.c
index 7433ebf..0d3fceb 100644
--- a/board/cds/mpc8548cds/mpc8548cds.c
+++ b/board/cds/mpc8548cds/mpc8548cds.c
@@ -51,6 +51,7 @@
{
volatile immap_t *immap = (immap_t *) CFG_CCSRBAR;
volatile ccsr_gur_t *gur = &immap->im_gur;
+ volatile ccsr_local_ecm_t *ecm = &immap->im_local_ecm;
/* PCI slot in USER bits CSR[6:7] by convention. */
uint pci_slot = get_pci_slot ();
@@ -89,6 +90,12 @@
*/
local_bus_init ();
+ /*
+ * Fix CPU2 errata: A core hang possible while executing a
+ * msync instruction and a snoopable transaction from an I/O
+ * master tagged to make quick forward progress is present.
+ */
+ ecm->eebpcr |= (1 << 16);
/*
* Hack TSEC 3 and 4 IO voltages.