[src/trunk]: src/sys/arch/powerpc/booke/dev Use LE bus space tag for EHCI reg...

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/749685297150
branches:  trunk
changeset: 762148:749685297150
user:      matt <matt%NetBSD.org@localhost>
date:      Wed Feb 16 18:46:37 2011 +0000

description:
Use LE bus space tag for EHCI register access.
Initialize SNOOP for all of RAM.
Use IPL_USB

diffstat:

 sys/arch/powerpc/booke/dev/pq3ehci.c |  17 +++++++++++++----
 1 files changed, 13 insertions(+), 4 deletions(-)

diffs (45 lines):

diff -r c053c1d45cf7 -r 749685297150 sys/arch/powerpc/booke/dev/pq3ehci.c
--- a/sys/arch/powerpc/booke/dev/pq3ehci.c      Wed Feb 16 18:45:33 2011 +0000
+++ b/sys/arch/powerpc/booke/dev/pq3ehci.c      Wed Feb 16 18:46:37 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pq3ehci.c,v 1.2 2011/01/18 01:02:53 matt Exp $ */
+/*     $NetBSD: pq3ehci.c,v 1.3 2011/02/16 18:46:37 matt Exp $ */
 /*-
  * Copyright (c) 2010, 2011 The NetBSD Foundation, Inc.
  * All rights reserved.
@@ -29,7 +29,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pq3ehci.c,v 1.2 2011/01/18 01:02:53 matt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pq3ehci.c,v 1.3 2011/02/16 18:46:37 matt Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -90,7 +90,7 @@
        int error;
 
        psc->sc_children |= cna->cna_childmask;
-       sc->sc.iot = cna->cna_memt;
+       sc->sc.iot = cna->cna_le_memt;  /* EHCI registers are little endian */
        sc->sc.sc_dev = self;
        sc->sc.sc_bus.dmatag = cna->cna_dmat;
        sc->sc.sc_bus.hci_private = sc;
@@ -111,7 +111,16 @@
        }
        sc->sc.sc_size = cnl->cnl_size;
 
-       sc->sc_ih = intr_establish(cnl->cnl_intrs[0], IPL_VM, IST_ONCHIP,
+       /*
+        * We need to tell the USB interface to snoop all off RAM starting
+        * at 0.  Since it can do it by powers of 2, get the highest RAM
+        * address and roughly round it to the next power of 2 and find
+        * the number of leading zero bits.  
+        */
+       cpu_write_4(cnl->cnl_addr + USB_SNOOP1,
+           SNOOP_2GB - __builtin_clz(curcpu()->ci_softc->cpu_highmem * 2 - 1));
+
+       sc->sc_ih = intr_establish(cnl->cnl_intrs[0], IPL_USB, IST_ONCHIP,
            ehci_intr, sc);
        if (sc->sc_ih == NULL) {
                aprint_error_dev(self, "failed to establish interrupt %d\n",