Fix writing the prefetchable mmio window base/limit.

ok patrick@

diff --git a/sys/dev/fdt/dwpcie.c b/sys/dev/fdt/dwpcie.c
index 278d48c..4cdee4c 100644 (file)
--- a/sys/dev/fdt/dwpcie.c
+++ b/sys/dev/fdt/dwpcie.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: dwpcie.c,v 1.52 2024/02/26 21:41:24 kettenis Exp $    */
+/*     $OpenBSD: dwpcie.c,v 1.53 2024/03/29 12:45:13 kettenis Exp $    */
 /*
  * Copyright (c) 2018 Mark Kettenis <kettenis@openbsd.org>
  *
@@ -676,7 +676,7 @@ dwpcie_attach_deferred(struct device *self)
                pmembase = sc->sc_pmem_bus_addr;
                pmemlimit = pmembase + sc->sc_pmem_size - 1;
                blr = pmemlimit & PPB_MEM_MASK;
-               blr |= (pmembase >> PPB_MEM_SHIFT);
+               blr |= ((pmembase & PPB_MEM_MASK) >> PPB_MEM_SHIFT);
                HWRITE4(sc, PPB_REG_PREFMEM, blr);
                HWRITE4(sc, PPB_REG_PREFBASE_HI32, pmembase >> 32);
                HWRITE4(sc, PPB_REG_PREFLIM_HI32, pmemlimit >> 32);