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drivers/pc80/pc/i8254.c: Drop CAR_GLOBAL_MIGRATION support 

Change-Id: Ibe9b353ce050b4718e07bccb958dbe3d2312e741
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37045
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Arthur Heymans 2019-11-20 22:02:33 +01:00 committed by Patrick Georgi
parent c2a9c42670
commit 22be29e23b
1 changed files with 7 additions and 12 deletions
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19
src/drivers/pc80/pc/i8254.c
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@ -11,7 +11,6 @@
* GNU General Public License for more details. * GNU General Public License for more details.
*/ */
#include <arch/early_variables.h>
#include <arch/io.h> #include <arch/io.h>
#include <commonlib/helpers.h> #include <commonlib/helpers.h>
#include <cpu/x86/tsc.h> #include <cpu/x86/tsc.h>
@ -107,23 +106,19 @@ bad_ctc:
} }
#if CONFIG(UNKNOWN_TSC_RATE) #if CONFIG(UNKNOWN_TSC_RATE)
static u32 g_timer_tsc CAR_GLOBAL; static u32 g_timer_tsc;
unsigned long tsc_freq_mhz(void) unsigned long tsc_freq_mhz(void)
{ {
u32 tsc; if (g_timer_tsc > 0)
return g_timer_tsc;
tsc = car_get_var(g_timer_tsc); g_timer_tsc = calibrate_tsc_with_pit();
if (tsc > 0)
return tsc;
tsc = calibrate_tsc_with_pit();
/* Set some semi-ridiculous rate if approximation fails. */ /* Set some semi-ridiculous rate if approximation fails. */
if (tsc == 0) if (g_timer_tsc == 0)
tsc = 5000; g_timer_tsc = 5000;
car_set_var(g_timer_tsc, tsc); return g_timer_tsc;
return tsc;
} }
#endif #endif