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authorTom Rini <trini@konsulko.com>2023-04-03 16:45:41 -0400
committerTom Rini <trini@konsulko.com>2023-04-03 16:45:41 -0400
commit288fe30a2367b8d0e3f416493150a38ebaa88459 (patch)
tree1f841eb95d9ceeda4aa3255fb1132a0342f9b19a /drivers/timer/tsc_timer.c
parentfd4ed6b7e83ec3aea9a2ce21baea8ca9676f40dd (diff)
parent9876c8c147144db2c120fcc9ffa6de27f6894441 (diff)
Merge branch 'next'
Signed-off-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'drivers/timer/tsc_timer.c')
-rw-r--r--drivers/timer/tsc_timer.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/timer/tsc_timer.c b/drivers/timer/tsc_timer.c
index 192c7b71a5a..f86a0b86921 100644
--- a/drivers/timer/tsc_timer.c
+++ b/drivers/timer/tsc_timer.c
@@ -404,6 +404,15 @@ static void tsc_timer_ensure_setup(bool early)
if (!gd->arch.clock_rate) {
unsigned long fast_calibrate;
+ /**
+ * There is no obvious way to obtain this information from EFI
+ * boot services. This value was measured on a Framework Laptop
+ * which has a 12th Gen Intel Core
+ */
+ if (IS_ENABLED(CONFIG_EFI_APP)) {
+ fast_calibrate = 2750;
+ goto done;
+ }
fast_calibrate = native_calibrate_tsc();
if (fast_calibrate)
goto done;