diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2017-01-05 10:07:19 -0600 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2017-01-06 17:30:58 +0100 |
| commit | 49342cd6880b3f2a8e20957d976914cd4ee7b43d (patch) | |
| tree | acc440a4eace0e6fb206c0a1ea4384dfbf294059 /src/include/pc80 | |
| parent | 7ad4dc5e9914e927a827ce48a030d2d04e7ec792 (diff) | |
arch/x86: fix cmos post logging in non romcc bootblock
cmos_post_init() is called in src/arch/x86/bootblock_simple.c, and
that function is reponsible for bootstrapping the cmos post register
contents. Without this function being called none of the cmos post
functionality works correctly. Therefore, add a call to lib/bootblock.c
which the C_ENVIRONMENT_BOOTBLOCK SoCs use.
BUG=chrome-os-partner:61546
Change-Id: I2e3519f2f3f2c28e5cba26b5811f1eb0c2a90572
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/18043
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
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 */ |