85xx: Limit CPU2 workaround to parts that have the errata
Signed-off-by: Ebony Zhu <ebony.zhu@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
diff --git a/board/freescale/mpc8548cds/mpc8548cds.c b/board/freescale/mpc8548cds/mpc8548cds.c
index dc39fbe..efe2a3a 100644
--- a/board/freescale/mpc8548cds/mpc8548cds.c
+++ b/board/freescale/mpc8548cds/mpc8548cds.c
@@ -59,6 +59,7 @@
uint pci_slot = get_pci_slot ();
uint cpu_board_rev = get_cpu_board_revision ();
+ uint svr;
printf ("Board: CDS Version 0x%02x, PCI Slot %d\n",
get_board_version (), pci_slot);
@@ -71,12 +72,16 @@
*/
local_bus_init ();
+ svr = get_svr();
+
/*
* 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.
+ * Fixed in Silicon Rev.2.1
*/
- ecm->eebpcr |= (1 << 16);
+ if (!(SVR_MAJ(svr) >= 2 && SVR_MIN(svr) >= 1))
+ ecm->eebpcr |= (1 << 16);
/*
* Hack TSEC 3 and 4 IO voltages.