From 7337b237ffc4aaf1b9467024fe472a880d852598 Mon Sep 17 00:00:00 2001 From: Zang Roy-r61911 Date: Fri, 15 Dec 2006 14:43:31 +0800 Subject: [PATCH] u-boot: Fix CPU2 errata on MPC8548CDS board This patch apply workaround of CPU2 errata on MPC8548CDS board. Signed-off-by:Ebony Zhu --- board/cds/mpc8548cds/mpc8548cds.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/board/cds/mpc8548cds/mpc8548cds.c b/board/cds/mpc8548cds/mpc8548cds.c index 7433ebf25b..0d3fcebfe2 100644 --- a/board/cds/mpc8548cds/mpc8548cds.c +++ b/board/cds/mpc8548cds/mpc8548cds.c @@ -51,6 +51,7 @@ int checkboard (void) { 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 @@ int checkboard (void) */ 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. -- 2.39.5