diff options
Diffstat (limited to 'hw/sun4m_iommu.c')
| -rw-r--r-- | hw/sun4m_iommu.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/hw/sun4m_iommu.c b/hw/sun4m_iommu.c index 0cd2ed00e3..1dbe077466 100644 --- a/hw/sun4m_iommu.c +++ b/hw/sun4m_iommu.c @@ -1,5 +1,5 @@ /* - * QEMU SPARC iommu emulation + * QEMU Sun4m iommu emulation * * Copyright (c) 2003-2005 Fabrice Bellard * @@ -35,6 +35,14 @@ #define DPRINTF(fmt, ...) #endif +/* + * I/O MMU used by Sun4m systems + * + * Chipset docs: + * "Sun-4M System Architecture (revision 2.0) by Chuck Narad", 950-1373-01, + * http://mediacast.sun.com/users/Barton808/media/Sun4M_SystemArchitecture_edited2.pdf + */ + #define IOMMU_NREGS (4*4096/4) #define IOMMU_CTRL (0x0000 >> 2) #define IOMMU_CTRL_IMPL 0xf0000000 /* Implementation */ |