From: Len Brown <[email protected]> Atom processors use a 19.2 MHz crystal oscillator.
Early processors generate 100 MHz via 19.2 MHz * 26 / 5 = 99.84 MHz. Later preocessor generate 100 MHz via 19.2 MHz * 125 / 24 = 100 MHz. Update the Silvermont-based tables accordingly, matching the Software Developers Manual. Also, correct a 166 MHz entry that should have been 116 MHz, and add a missing 80 MHz entry. Reported-by: Stephane Gasparini <[email protected]> Signed-off-by: Len Brown <[email protected]> Signed-off-by: Yong, Jonathan <[email protected]> --- arch/x86/kernel/tsc_msr.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/tsc_msr.c b/arch/x86/kernel/tsc_msr.c index 4110f72..20487e2 100644 --- a/arch/x86/kernel/tsc_msr.c +++ b/arch/x86/kernel/tsc_msr.c @@ -35,11 +35,11 @@ static struct freq_desc freq_desc_tables[] = { /* CLV+ */ { 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 } }, + { 6, 0x4a, 1, { 0, 100000, 133300, 0, 0, 0, 0, 0 } }, /* VLV2 - Intel Atom processor E3000, Z3600, Z3700 series */ - { 6, 0x37, 1, { 83200, 99840, 133200, 166400, 0, 0, 0, 0 } }, + { 6, 0x37, 1, { 83300, 100000, 133300, 116700, 80000, 0, 0, 0 } }, /* ANN - Intel Atom processor Z3500 series */ - { 6, 0x5a, 1, { 83200, 99840, 133200, 99840, 0, 0, 0, 0 } }, + { 6, 0x5a, 1, { 83300, 100000, 133300, 100000, 0, 0, 0, 0 } }, }; static int match_cpu(u8 family, u8 model) -- 2.7.3 -- _______________________________________________ linux-yocto mailing list [email protected] https://lists.yoctoproject.org/listinfo/linux-yocto
