diff options
| author | Arthur Heymans <arthur@aheymans.xyz> | 2019-10-07 12:04:43 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-10-23 14:23:29 +0000 |
| commit | 88e9c5af574130483de24cdc1e2328e0dd622793 (patch) | |
| tree | 536e2d2351f349dd77e9a55547444c1dc4188ec8 /src/drivers/pc80 | |
| parent | 62a6741bba6d0752412f3cdf8ada94f0cc25a603 (diff) | |
drivers/pc80/rtc: Avoid searching for cmos_layout.bin on each get/set_option
Avoid searching for cmos_layout.bin each time get/set_option is called
on platforms with NO_CAR_GLOBAL_MIGRATION.
Change-Id: Ie541017d2f8c8e9d4b592b71f44a08fd9670dd09
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35848
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/drivers/pc80')
| -rw-r--r-- | src/drivers/pc80/rtc/mc146818rtc.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/src/drivers/pc80/rtc/mc146818rtc.c b/src/drivers/pc80/rtc/mc146818rtc.c index f6c748d0cb..abf8b2556f 100644 --- a/src/drivers/pc80/rtc/mc146818rtc.c +++ b/src/drivers/pc80/rtc/mc146818rtc.c @@ -241,7 +241,7 @@ static enum cb_err get_cmos_value(unsigned long bit, unsigned long length, static enum cb_err locate_cmos_layout(struct region_device *rdev) { uint32_t cbfs_type = CBFS_COMPONENT_CMOS_LAYOUT; - struct cbfsf fh; + MAYBE_STATIC_BSS struct cbfsf fh = {}; /* * In case VBOOT is enabled and this function is called from SMM, @@ -250,11 +250,13 @@ static enum cb_err locate_cmos_layout(struct region_device *rdev) * * Support only one CMOS layout in the 'COREBOOT' region for now. */ - if (cbfs_locate_file_in_region(&fh, "COREBOOT", "cmos_layout.bin", - &cbfs_type)) { - printk(BIOS_ERR, "RTC: cmos_layout.bin could not be found. " + if (!region_device_sz(&(fh.data))) { + if (cbfs_locate_file_in_region(&fh, "COREBOOT", "cmos_layout.bin", + &cbfs_type)) { + printk(BIOS_ERR, "RTC: cmos_layout.bin could not be found. " "Options are disabled\n"); - return CB_CMOS_LAYOUT_NOT_FOUND; + return CB_CMOS_LAYOUT_NOT_FOUND; + } } cbfs_file_data(rdev, &fh); |