diff options
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/rtc/rtc-sh.c | 24 |
2 files changed, 14 insertions, 12 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 1e6715e..45e4b96 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -404,7 +404,7 @@ config RTC_DRV_SA1100 config RTC_DRV_SH tristate "SuperH On-Chip RTC" - depends on RTC_CLASS && (CPU_SH3 || CPU_SH4) + depends on RTC_CLASS && SUPERH help Say Y here to enable support for the on-chip RTC found in most SuperH processors. diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c index 8e8c8b8..c1d6a18 100644 --- a/drivers/rtc/rtc-sh.c +++ b/drivers/rtc/rtc-sh.c @@ -26,17 +26,7 @@ #include <asm/rtc.h> #define DRV_NAME "sh-rtc" -#define DRV_VERSION "0.1.3" - -#ifdef CONFIG_CPU_SH3 -#define rtc_reg_size sizeof(u16) -#define RTC_BIT_INVERTED 0 /* No bug on SH7708, SH7709A */ -#define RTC_DEF_CAPABILITIES 0UL -#elif defined(CONFIG_CPU_SH4) -#define rtc_reg_size sizeof(u32) -#define RTC_BIT_INVERTED 0x40 /* bug on SH7750, SH7750S */ -#define RTC_DEF_CAPABILITIES RTC_CAP_4_DIGIT_YEAR -#endif +#define DRV_VERSION "0.1.6" #define RTC_REG(r) ((r) * rtc_reg_size) @@ -58,6 +48,18 @@ #define RCR1 RTC_REG(14) /* Control */ #define RCR2 RTC_REG(15) /* Control */ +/* + * Note on RYRAR and RCR3: Up until this point most of the register + * definitions are consistent across all of the available parts. However, + * the placement of the optional RYRAR and RCR3 (the RYRAR control + * register used to control RYRCNT/RYRAR compare) varies considerably + * across various parts, occasionally being mapped in to a completely + * unrelated address space. For proper RYRAR support a separate resource + * would have to be handed off, but as this is purely optional in + * practice, we simply opt not to support it, thereby keeping the code + * quite a bit more simplified. + */ + /* ALARM Bits - or with BCD encoded value */ #define AR_ENB 0x80 /* Enable for alarm cmp */ |
