Remove a feature to re-use existing early bootstrap mappings. This

allowed you to pass a virtual address, which you received from an
early bootstrap mapping, as physical address to bus_space_map(9).

It breaks bus_space_map(9) for peripherals that are after 0xC0000000,
as it assumes that everything after that address cannot be a real
peripheral.  But that's wrong.  It does not make sense to pass a
virtual address to bus_space_map(9) anyway, so just get rid of this
whole "feature".

ok kettenis@

diff --git a/sys/arch/arm/armv7/armv7_space.c b/sys/arch/arm/armv7/armv7_space.c
index 243e2db..d615493 100644 (file)
--- a/sys/arch/arm/armv7/armv7_space.c
+++ b/sys/arch/arm/armv7/armv7_space.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: armv7_space.c,v 1.6 2014/11/16 12:30:56 deraadt Exp $ */
+/*     $OpenBSD: armv7_space.c,v 1.7 2016/07/27 21:25:25 patrick Exp $ */
 
 /*
  * Copyright (c) 2001, 2002 Wasabi Systems, Inc.
@@ -172,14 +172,6 @@ armv7_bs_map(void *t, bus_addr_t bpa, bus_size_t size,
        vaddr_t va;
        pt_entry_t *pte;
 
-       if ((u_long)bpa > (u_long)KERNEL_BASE) {
-               /* Some IO registers (ex. UART ports for console)
-                  are mapped to fixed address by board specific
-                  routine. */
-               *bshp = bpa;
-               return(0);
-       }
-
        startpa = trunc_page(bpa);
        endpa = round_page(bpa + size);
 
@@ -213,9 +205,6 @@ armv7_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size)
 {
        vaddr_t va, endva;
 
-       if (bsh > (u_long)KERNEL_BASE)
-               return;
-
        va = trunc_page((vaddr_t)bsh);
        endva = round_page((vaddr_t)bsh + size);