diff options
| -rw-r--r-- | drivers/clocksource/sh_cmt.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c index 7108963a6ab8..b72b7242125e 100644 --- a/drivers/clocksource/sh_cmt.c +++ b/drivers/clocksource/sh_cmt.c @@ -66,6 +66,21 @@ struct sh_cmt_priv { unsigned long value); }; +/* Examples of supported CMT timer register layouts and I/O access widths: + * + * "16-bit counter and 16-bit control" as found on sh7263: + * CMSTR 0xfffec000 16-bit + * CMCSR 0xfffec002 16-bit + * CMCNT 0xfffec004 16-bit + * CMCOR 0xfffec006 16-bit + * + * "32-bit counter and 16-bit control" as found on sh7372, sh73a0, r8a7740: + * CMSTR 0xffca0000 16-bit + * CMCSR 0xffca0060 16-bit + * CMCNT 0xffca0064 32-bit + * CMCOR 0xffca0068 32-bit + */ + static unsigned long sh_cmt_read16(void __iomem *base, unsigned long offs) { return ioread16(base + (offs << 1)); |
