Author: imp
Date: Wed Jan 22 21:23:58 2014
New Revision: 261039
URL: http://svnweb.freebsd.org/changeset/base/261039
Log:
Add support for mapping a small range of the SoC devices for debugging
purposes early in boot.
Modified:
head/sys/arm/arm/locore.S
head/sys/conf/options.arm
Modified: head/sys/arm/arm/locore.S
==============================================================================
--- head/sys/arm/arm/locore.S Wed Jan 22 21:20:08 2014 (r261038)
+++ head/sys/arm/arm/locore.S Wed Jan 22 21:23:58 2014 (r261039)
@@ -258,9 +258,13 @@ mmu_init_table:
/* fill all table VA==PA */
/* map SDRAM VA==PA, WT cacheable */
#if !defined(SMP)
- MMU_INIT(PHYSADDR, PHYSADDR , 64, L1_TYPE_S|L1_S_C|L1_S_AP(AP_KRW))
+ MMU_INIT(PHYSADDR, PHYSADDR, 64, L1_TYPE_S|L1_S_C|L1_S_AP(AP_KRW))
/* map VA 0xc0000000..0xc3ffffff to PA */
MMU_INIT(KERNBASE, PHYSADDR, 64, L1_TYPE_S|L1_S_C|L1_S_AP(AP_KRW))
+#if defined(SOCDEV_PA) && defined(SOCKDEV_VA)
+ /* Map in 0x04000000 worth of the SoC's devices for bootstrap debugging
*/
+ MMU_INIT(SOCKDEV_VA, SOCDEV_PA, 64, L1_TYPE_S|L1_S_C|L1_S_AP(AP_KRW))
+#endif
#else
MMU_INIT(PHYSADDR, PHYSADDR , 64,
L1_TYPE_S|L1_SHARED|L1_S_C|L1_S_AP(AP_KRW))
/* map VA 0xc0000000..0xc3ffffff to PA */
Modified: head/sys/conf/options.arm
==============================================================================
--- head/sys/conf/options.arm Wed Jan 22 21:20:08 2014 (r261038)
+++ head/sys/conf/options.arm Wed Jan 22 21:23:58 2014 (r261039)
@@ -35,6 +35,8 @@ LINUX_BOOT_ABI opt_global.h
LOADERRAMADDR opt_global.h
NO_EVENTTIMERS opt_timer.h
PHYSADDR opt_global.h
+SOCDEV_PA opt_global.h
+SOCDEV_VA opt_global.h
PV_STATS opt_pmap.h
QEMU_WORKAROUNDS opt_global.h
SOC_MV_ARMADAXP opt_global.h
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