[src/trunk]: src/sys/arch/evbarm/gumstix Set xscale_cache_clean_addr appropri...

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

details:   https://anonhg.NetBSD.org/src/rev/98971264fc8f
branches:  trunk
changeset: 351858:98971264fc8f
user:      skrll <skrll%NetBSD.org@localhost>
date:      Wed Mar 01 16:44:54 2017 +0000

description:
Set xscale_cache_clean_addr appropriately and re-arrange default KVA
layout to allow direct map for all boards.

OVERO/DUOVERO/PEPPER aren't tested.

PR/52010: Regression: Gumstix Verdex is hanging in enabling cache + KASSERT ram_size

diffstat:

 sys/arch/evbarm/gumstix/gumstix_machdep.c |  16 +++++++++++-----
 1 files changed, 11 insertions(+), 5 deletions(-)

diffs (40 lines):

diff -r 99300736a7d9 -r 98971264fc8f sys/arch/evbarm/gumstix/gumstix_machdep.c
--- a/sys/arch/evbarm/gumstix/gumstix_machdep.c Wed Mar 01 16:39:49 2017 +0000
+++ b/sys/arch/evbarm/gumstix/gumstix_machdep.c Wed Mar 01 16:44:54 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: gumstix_machdep.c,v 1.57 2016/10/20 09:53:08 skrll Exp $ */
+/*     $NetBSD: gumstix_machdep.c,v 1.58 2017/03/01 16:44:54 skrll Exp $ */
 /*
  * Copyright (C) 2005, 2006, 2007  WIDE Project and SOUM Corporation.
  * All rights reserved.
@@ -206,13 +206,16 @@
 #endif
 
 /*
- * The range 0xc1000000 - 0xcfffffff is available for kernel VM space
- * Core-logic registers and I/O mappings occupy 0xfd000000 - 0xffffffff
+ * The range 0xc1000000 - 0xfd000000 is available for kernel VM space
+ * Core-logic registers and I/O mappings occupy
+ *
+ *    0xfd000000 - 0xfd800000  on gumstix
+ *    0xc0000000 - 0xc0400000  on overo, duovero and pepper
  */
 #ifndef KERNEL_VM_BASE
-#define        KERNEL_VM_BASE          0xc1000000
+#define        KERNEL_VM_BASE          0xc8000000
 #endif
-#define KERNEL_VM_SIZE         0x0f000000
+#define KERNEL_VM_SIZE         0x35000000
 
 BootConfig bootconfig;         /* Boot config storage */
 static char bootargs[MAX_BOOT_STRING];
@@ -487,6 +490,9 @@
         */
 
 #if defined(CPU_XSCALE)
+       extern vaddr_t xscale_cache_clean_addr;
+       xscale_cache_clean_addr = 0xff000000U;
+
        cpu_reset_address = NULL;
 #elif defined(OMAP2)
        cpu_reset_address = omap_reset;