diff options
Diffstat (limited to 'src/include/pc80')
| -rw-r--r-- | src/include/pc80/mc146818rtc.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/include/pc80/mc146818rtc.h b/src/include/pc80/mc146818rtc.h index 66d5edb4b9..99fba9dbe5 100644 --- a/src/include/pc80/mc146818rtc.h +++ b/src/include/pc80/mc146818rtc.h @@ -221,10 +221,39 @@ unsigned read_option_lowlevel(unsigned start, unsigned size, unsigned def); #define CMOS_POST_EXTRA_DEV_PATH 0x01 void cmos_post_log(void); + +/* cmos_post_init() is exposed in this manner because it also needs to be called + * by bootblock code compiled by romcc. */ +static inline void cmos_post_init(void) +{ + u8 magic = CMOS_POST_BANK_0_MAGIC; + + /* Switch to the other bank */ + switch (cmos_read(CMOS_POST_BANK_OFFSET)) { + case CMOS_POST_BANK_1_MAGIC: + break; + case CMOS_POST_BANK_0_MAGIC: + magic = CMOS_POST_BANK_1_MAGIC; + break; + default: + /* Initialize to zero */ + cmos_write(0, CMOS_POST_BANK_0_OFFSET); + cmos_write(0, CMOS_POST_BANK_1_OFFSET); +#if CONFIG_CMOS_POST_EXTRA + cmos_write32(CMOS_POST_BANK_0_EXTRA, 0); + cmos_write32(CMOS_POST_BANK_1_EXTRA, 0); +#endif + } + + cmos_write(magic, CMOS_POST_BANK_OFFSET); +} #else static inline void cmos_post_log(void) {} +static inline void cmos_post_init(void) {} #endif /* CONFIG_CMOS_POST */ +#else /* !CONFIG_ARCH_X86 */ +static inline void cmos_post_init(void) {} #endif /* CONFIG_ARCH_X86 */ #endif /* PC80_MC146818RTC_H */ |