diff options
author | Nico Huber <nico.huber@secunet.com> | 2017-07-25 16:11:36 +0200 |
---|---|---|
committer | Nico Huber <nico.h@gmx.de> | 2017-07-26 19:30:01 +0000 |
commit | 5ce0fe117626b10f327fe279f64856cde575946c (patch) | |
tree | 15cf66c456de8e82f19b1615aa11adf01e668ee6 /src/drivers/pc80/rtc/mc146818rtc_romcc.c | |
parent | a81f32192486952979d505e51ba6ae7a7d30e91d (diff) |
Port cmos.default handling to C environment bootblock
Gather related code in the new file drivers/pc80/rtc/mc146818rtc_boot.c,
call sanitize_cmos() from C environment bootblock.
Change-Id: Ia5c64de208a5986299c0508d0e11eeb8473deef1
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/20768
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/drivers/pc80/rtc/mc146818rtc_romcc.c')
-rw-r--r-- | src/drivers/pc80/rtc/mc146818rtc_romcc.c | 34 |
1 files changed, 2 insertions, 32 deletions
diff --git a/src/drivers/pc80/rtc/mc146818rtc_romcc.c b/src/drivers/pc80/rtc/mc146818rtc_romcc.c index dc4f2efec4..a280882a77 100644 --- a/src/drivers/pc80/rtc/mc146818rtc_romcc.c +++ b/src/drivers/pc80/rtc/mc146818rtc_romcc.c @@ -1,43 +1,13 @@ #include <stdint.h> #include <pc80/mc146818rtc.h> #include <fallback.h> -#if IS_ENABLED(CONFIG_USE_OPTION_TABLE) -#include "option_table.h" -#endif + +#include "mc146818rtc_boot.c" #if CONFIG_MAX_REBOOT_CNT > 15 #error "CONFIG_MAX_REBOOT_CNT too high" #endif -static int cmos_error(void) -{ - unsigned char reg_d; - /* See if the cmos error condition has been flagged */ - reg_d = cmos_read(RTC_REG_D); - return (reg_d & RTC_VRT) == 0; -} - -static int cmos_chksum_valid(void) -{ -#if IS_ENABLED(CONFIG_USE_OPTION_TABLE) - unsigned char addr; - u16 sum, old_sum; - - sum = 0; - /* Compute the cmos checksum */ - for (addr = LB_CKS_RANGE_START; addr <= LB_CKS_RANGE_END; addr++) - sum += cmos_read(addr); - - /* Read the stored checksum */ - old_sum = cmos_read(LB_CKS_LOC) << 8; - old_sum |= cmos_read(LB_CKS_LOC+1); - - return sum == old_sum; -#else - return 0; -#endif -} - static inline __attribute__((unused)) int boot_count(uint8_t rtc_byte) { return rtc_byte >> 4; |