diff options
Diffstat (limited to 'drivers/timer/tsc_timer.c')
| -rw-r--r-- | drivers/timer/tsc_timer.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/drivers/timer/tsc_timer.c b/drivers/timer/tsc_timer.c index bdbecac196..3c1b745e16 100644 --- a/drivers/timer/tsc_timer.c +++ b/drivers/timer/tsc_timer.c @@ -18,12 +18,6 @@ #include <asm/msr.h> #include <asm/u-boot-x86.h> -/* CPU reference clock frequency: in KHz */ -#define FREQ_83 83200 -#define FREQ_100 99840 -#define FREQ_133 133200 -#define FREQ_166 166400 - #define MAX_NUM_FREQS 8 DECLARE_GLOBAL_DATA_PTR; @@ -46,17 +40,17 @@ struct freq_desc { static struct freq_desc freq_desc_tables[] = { /* PNW */ - { 6, 0x27, 0, { 0, 0, 0, 0, 0, FREQ_100, 0, FREQ_83 } }, + { 6, 0x27, 0, { 0, 0, 0, 0, 0, 99840, 0, 83200 } }, /* CLV+ */ - { 6, 0x35, 0, { 0, FREQ_133, 0, 0, 0, FREQ_100, 0, FREQ_83 } }, - /* TNG */ - { 6, 0x4a, 1, { 0, FREQ_100, FREQ_133, 0, 0, 0, 0, 0 } }, - /* VLV2 */ - { 6, 0x37, 1, { FREQ_83, FREQ_100, FREQ_133, FREQ_166, 0, 0, 0, 0 } }, + { 6, 0x35, 0, { 0, 133200, 0, 0, 0, 99840, 0, 83200 } }, + /* TNG - Intel Atom processor Z3400 series */ + { 6, 0x4a, 1, { 0, 99840, 133200, 0, 0, 0, 0, 0 } }, + /* VLV2 - Intel Atom processor E3000, Z3600, Z3700 series */ + { 6, 0x37, 1, { 83200, 99840, 133200, 166400, 0, 0, 0, 0 } }, + /* ANN - Intel Atom processor Z3500 series */ + { 6, 0x5a, 1, { 83200, 99840, 133200, 99840, 0, 0, 0, 0 } }, /* Ivybridge */ { 6, 0x3a, 2, { 0, 0, 0, 0, 0, 0, 0, 0 } }, - /* ANN */ - { 6, 0x5a, 1, { FREQ_83, FREQ_100, FREQ_133, FREQ_100, 0, 0, 0, 0 } }, }; static int match_cpu(u8 family, u8 model) @@ -105,7 +99,7 @@ static unsigned long __maybe_unused try_msr_calibrate_tsc(void) if (freq_desc_tables[cpu_index].msr_plat == 2) { /* TODO: Figure out how best to deal with this */ - freq = FREQ_100; + freq = 99840; debug("Using frequency: %u KHz\n", freq); } else { /* Get FSB FREQ ID */ |