[src/trunk]: src/sys/dev/ic - Move __DDR4_VALUE()'s comment to the correct po...

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

details:   https://anonhg.NetBSD.org/src/rev/b32c5a24042d
branches:  trunk
changeset: 350733:b32c5a24042d
user:      msaitoh <msaitoh%NetBSD.org@localhost>
date:      Wed Jan 18 06:02:50 2017 +0000

description:
- Move __DDR4_VALUE()'s comment to the correct position.
- s/ftp/ftb/. No functional change.

diffstat:

 sys/dev/ic/spdmem.c    |  14 +++++++-------
 sys/dev/ic/spdmemvar.h |   4 ++--
 2 files changed, 9 insertions(+), 9 deletions(-)

diffs (64 lines):

diff -r 9526cd8d4a9f -r b32c5a24042d sys/dev/ic/spdmem.c
--- a/sys/dev/ic/spdmem.c       Wed Jan 18 05:48:16 2017 +0000
+++ b/sys/dev/ic/spdmem.c       Wed Jan 18 06:02:50 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: spdmem.c,v 1.23 2017/01/11 21:44:50 maya Exp $ */
+/* $NetBSD: spdmem.c,v 1.24 2017/01/18 06:02:50 msaitoh Exp $ */
 
 /*
  * Copyright (c) 2007 Nicolas Joly
@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: spdmem.c,v 1.23 2017/01/11 21:44:50 maya Exp $");
+__KERNEL_RCSID(0, "$NetBSD: spdmem.c,v 1.24 2017/01/18 06:02:50 msaitoh Exp $");
 
 #include <sys/param.h>
 #include <sys/device.h>
@@ -909,11 +909,15 @@
                }
        }
 
+/*
+ * Note that the ddr4_xxx_ftb fields are actually signed offsets from
+ * the corresponding mtb value, so we might have to subtract 256!
+ */
 #define        __DDR4_VALUE(field) ((s->sm_ddr4.ddr4_##field##_mtb * 125 +     \
                             s->sm_ddr4.ddr4_##field##_ftb) -           \
                            ((s->sm_ddr4.ddr4_##field##_ftb > 127)?256:0))
        /*
-        * For now, the only value for mtb is 1 = 125ps, and ftp = 1ps 
+        * For now, the only value for mtb is 0 = 125ps, and ftb = 1ps 
         * so we don't need to figure out the time-base units - just
         * hard-code them for now.
         */
@@ -930,10 +934,6 @@
            1 << s->sm_ddr4.ddr4_bankgroups,
            cycle_time / 1000, cycle_time % 1000);
 
-/*
- * Note that the ddr4_xxx_ftb fields are actually signed offsets from
- * the corresponding mtb value, so we might have to subtract 256!
- */
 
        tAA_clocks =  __DDR4_VALUE(tAAmin)  * 1000 / cycle_time;
        tRCD_clocks = __DDR4_VALUE(tRCDmin) * 1000 / cycle_time;
diff -r 9526cd8d4a9f -r b32c5a24042d sys/dev/ic/spdmemvar.h
--- a/sys/dev/ic/spdmemvar.h    Wed Jan 18 05:48:16 2017 +0000
+++ b/sys/dev/ic/spdmemvar.h    Wed Jan 18 06:02:50 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: spdmemvar.h,v 1.12 2016/09/05 04:06:55 msaitoh Exp $ */
+/* $NetBSD: spdmemvar.h,v 1.13 2017/01/18 06:02:50 msaitoh Exp $ */
 
 /*
  * Copyright (c) 2007 Paul Goyette
@@ -353,7 +353,7 @@
        );
        SPD_BITFIELD(                           \
                uint8_t fbdimm_ftb_divisor:4,   \
-               uint8_t fbdimm_ftp_dividend:4, ,\
+               uint8_t fbdimm_ftb_dividend:4, ,\
        );
        uint8_t fbdimm_mtb_dividend;
        uint8_t fbdimm_mtb_divisor;