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-rw-r--r--arch/x86/platform/intel-mid/intel-mid.c6
-rw-r--r--arch/x86/platform/intel-mid/mfld.c36
-rw-r--r--arch/x86/platform/intel-mid/mrfld.c74
3 files changed, 0 insertions, 116 deletions
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 2ebdf31d9996..aac15a4018d5 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -82,11 +82,6 @@ static void intel_mid_reboot(void)
intel_scu_ipc_simple_command(IPCMSG_COLD_RESET, 0);
}
-static unsigned long __init intel_mid_calibrate_tsc(void)
-{
- return 0;
-}
-
static void __init intel_mid_setup_bp_timer(void)
{
apbt_time_init();
@@ -191,7 +186,6 @@ void __init x86_intel_mid_early_setup(void)
x86_cpuinit.setup_percpu_clockev = apbt_setup_secondary_clock;
- x86_platform.calibrate_tsc = intel_mid_calibrate_tsc;
x86_platform.get_nmi_reason = intel_mid_get_nmi_reason;
x86_init.pci.arch_init = intel_mid_pci_init;
diff --git a/arch/x86/platform/intel-mid/mfld.c b/arch/x86/platform/intel-mid/mfld.c
index e42978d4deaf..e66b51f5c206 100644
--- a/arch/x86/platform/intel-mid/mfld.c
+++ b/arch/x86/platform/intel-mid/mfld.c
@@ -11,48 +11,12 @@
#include <linux/init.h>
-#include <asm/apic.h>
#include <asm/intel-mid.h>
-#include <asm/intel_mid_vrtc.h>
#include "intel_mid_weak_decls.h"
-static unsigned long __init mfld_calibrate_tsc(void)
-{
- unsigned long fast_calibrate;
- u32 lo, hi, ratio, fsb;
-
- rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
- pr_debug("IA32 perf status is 0x%x, 0x%0x\n", lo, hi);
- ratio = (hi >> 8) & 0x1f;
- pr_debug("ratio is %d\n", ratio);
- if (!ratio) {
- pr_err("read a zero ratio, should be incorrect!\n");
- pr_err("force tsc ratio to 16 ...\n");
- ratio = 16;
- }
- rdmsr(MSR_FSB_FREQ, lo, hi);
- if ((lo & 0x7) == 0x7)
- fsb = FSB_FREQ_83SKU;
- else
- fsb = FSB_FREQ_100SKU;
- fast_calibrate = ratio * fsb;
- pr_debug("read penwell tsc %lu khz\n", fast_calibrate);
- lapic_timer_frequency = fsb * 1000 / HZ;
-
- /*
- * TSC on Intel Atom SoCs is reliable and of known frequency.
- * See tsc_msr.c for details.
- */
- setup_force_cpu_cap(X86_FEATURE_TSC_KNOWN_FREQ);
- setup_force_cpu_cap(X86_FEATURE_TSC_RELIABLE);
-
- return fast_calibrate;
-}
-
static void __init penwell_arch_setup(void)
{
- x86_platform.calibrate_tsc = mfld_calibrate_tsc;
}
static struct intel_mid_ops penwell_ops = {
diff --git a/arch/x86/platform/intel-mid/mrfld.c b/arch/x86/platform/intel-mid/mrfld.c
index ae7bdeb0e507..c5538ec2d62d 100644
--- a/arch/x86/platform/intel-mid/mrfld.c
+++ b/arch/x86/platform/intel-mid/mrfld.c
@@ -11,86 +11,12 @@
#include <linux/init.h>
-#include <asm/apic.h>
#include <asm/intel-mid.h>
#include "intel_mid_weak_decls.h"
-static unsigned long __init tangier_calibrate_tsc(void)
-{
- unsigned long fast_calibrate;
- u32 lo, hi, ratio, fsb, bus_freq;
-
- /* *********************** */
- /* Compute TSC:Ratio * FSB */
- /* *********************** */
-
- /* Compute Ratio */
- rdmsr(MSR_PLATFORM_INFO, lo, hi);
- pr_debug("IA32 PLATFORM_INFO is 0x%x : %x\n", hi, lo);
-
- ratio = (lo >> 8) & 0xFF;
- pr_debug("ratio is %d\n", ratio);
- if (!ratio) {
- pr_err("Read a zero ratio, force tsc ratio to 4 ...\n");
- ratio = 4;
- }
-
- /* Compute FSB */
- rdmsr(MSR_FSB_FREQ, lo, hi);
- pr_debug("Actual FSB frequency detected by SOC 0x%x : %x\n",
- hi, lo);
-
- bus_freq = lo & 0x7;
- pr_debug("bus_freq = 0x%x\n", bus_freq);
-
- if (bus_freq == 0)
- fsb = FSB_FREQ_100SKU;
- else if (bus_freq == 1)
- fsb = FSB_FREQ_100SKU;
- else if (bus_freq == 2)
- fsb = FSB_FREQ_133SKU;
- else if (bus_freq == 3)
- fsb = FSB_FREQ_167SKU;
- else if (bus_freq == 4)
- fsb = FSB_FREQ_83SKU;
- else if (bus_freq == 5)
- fsb = FSB_FREQ_400SKU;
- else if (bus_freq == 6)
- fsb = FSB_FREQ_267SKU;
- else if (bus_freq == 7)
- fsb = FSB_FREQ_333SKU;
- else {
- BUG();
- pr_err("Invalid bus_freq! Setting to minimal value!\n");
- fsb = FSB_FREQ_100SKU;
- }
-
- /* TSC = FSB Freq * Resolved HFM Ratio */
- fast_calibrate = ratio * fsb;
- pr_debug("calculate tangier tsc %lu KHz\n", fast_calibrate);
-
- /* ************************************ */
- /* Calculate Local APIC Timer Frequency */
- /* ************************************ */
- lapic_timer_frequency = (fsb * 1000) / HZ;
-
- pr_debug("Setting lapic_timer_frequency = %d\n",
- lapic_timer_frequency);
-
- /*
- * TSC on Intel Atom SoCs is reliable and of known frequency.
- * See tsc_msr.c for details.
- */
- setup_force_cpu_cap(X86_FEATURE_TSC_KNOWN_FREQ);
- setup_force_cpu_cap(X86_FEATURE_TSC_RELIABLE);
-
- return fast_calibrate;
-}
-
static void __init tangier_arch_setup(void)
{
- x86_platform.calibrate_tsc = tangier_calibrate_tsc;
x86_platform.legacy.rtc = 1;
}