[src/trunk]: src/sys/arch/hp700/dev Add some comments.

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

details:   https://anonhg.NetBSD.org/src/rev/992789e79695
branches:  trunk
changeset: 750858:992789e79695
user:      skrll <skrll%NetBSD.org@localhost>
date:      Sun Jan 17 08:29:00 2010 +0000

description:
Add some comments.

diffstat:

 sys/arch/hp700/dev/dino.c |  11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diffs (48 lines):

diff -r 24eaa3f938c8 -r 992789e79695 sys/arch/hp700/dev/dino.c
--- a/sys/arch/hp700/dev/dino.c Sun Jan 17 08:24:06 2010 +0000
+++ b/sys/arch/hp700/dev/dino.c Sun Jan 17 08:29:00 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: dino.c,v 1.21 2009/12/08 09:56:42 skrll Exp $ */
+/*     $NetBSD: dino.c,v 1.22 2010/01/17 08:29:00 skrll Exp $ */
 
 /*     $OpenBSD: dino.c,v 1.5 2004/02/13 20:39:31 mickey Exp $ */
 
@@ -29,7 +29,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: dino.c,v 1.21 2009/12/08 09:56:42 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: dino.c,v 1.22 2010/01/17 08:29:00 skrll Exp $");
 
 /* #include "cardbus.h" */
 
@@ -62,6 +62,7 @@
 extern struct extent *hp700_io_extent;
 
 struct dino_regs {
+       /* HPA Supervisory Register Set */
        uint32_t        pad0;           /* 0x000 */
        uint32_t        iar0;           /* 0x004 rw intr addr reg 0 */
        uint32_t        iodc;           /* 0x008 rw iodc data/addr */
@@ -78,6 +79,8 @@
        uint32_t        io_status;      /* 0x034 r  status register */
        uint32_t        io_control;     /* 0x038 rw control register */
        uint32_t        pad2;           /* 0x03c AUX registers follow */
+
+       /* HPA Auxiliary Register Set */
        uint32_t        io_gsc_err_addr;/* 0x040 GSC error address */
        uint32_t        io_err_info;    /* 0x044 error info register */
        uint32_t        io_pci_err_addr;/* 0x048 PCI error address */
@@ -89,8 +92,12 @@
        uint32_t        pci_io_data;    /* 0x06c PCI io data reg */
        uint32_t        pci_mem_data;   /* 0x070 PCI memory data reg */
        uint32_t        pad4[0x740/4];  /* 0x074 */
+
+       /* HPA Bus (GSC) Specific-Dependent Register Set */
        uint32_t        gsc2x_config;   /* 0x7b4 GSC2X config reg */
        uint32_t        pad5[0x48/4];   /* 0x7b8: BSRS registers follow */
+
+       /* HPA HVERSION (Dino)-Dependent Register Set */
        uint32_t        gmask;          /* 0x800 GSC arbitration mask */
        uint32_t        pamr;           /* 0x804 PCI arbitration mask */
        uint32_t        papr;           /* 0x808 PCI arbitration priority */