From 1665c4a892983ae5c0efa6ef88c00266e3537717 Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Wed, 12 Nov 2014 13:36:04 +1100 Subject: [PATCH] powerpc/powernv: Check PHB type in advance The patch checks PHB type a bit early to save a bit cycles for P7 because we don't support M64 for P7IOC no matter what OPAL firmware we have. Signed-off-by: Gavin Shan Signed-off-by: Michael Ellerman --- arch/powerpc/platforms/powernv/pci-ioda.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 468a0f23c7f2..7ab1dd732993 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -313,6 +313,12 @@ static void __init pnv_ioda_parse_m64_window(struct pnv_phb *phb) const u32 *r; u64 pci_addr; + /* FIXME: Support M64 for P7IOC */ + if (phb->type != PNV_PHB_IODA2) { + pr_info(" Not support M64 window\n"); + return; + } + if (!firmware_has_feature(FW_FEATURE_OPALv3)) { pr_info(" Firmware too old to support M64 window\n"); return; @@ -325,12 +331,6 @@ static void __init pnv_ioda_parse_m64_window(struct pnv_phb *phb) return; } - /* FIXME: Support M64 for P7IOC */ - if (phb->type != PNV_PHB_IODA2) { - pr_info(" Not support M64 window\n"); - return; - } - res = &hose->mem_resources[1]; res->start = of_translate_address(dn, r + 2); res->end = res->start + of_read_number(r + 4, 2) - 1; -- 2.39.5