diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/Kconfig | 20 | ||||
| -rw-r--r-- | arch/x86/cpu/qemu/Kconfig | 1 | ||||
| -rw-r--r-- | arch/x86/cpu/quark/Kconfig | 5 | ||||
| -rw-r--r-- | arch/x86/include/asm/global_data.h | 1 | ||||
| -rw-r--r-- | arch/x86/lib/tsc_timer.c | 53 |
5 files changed, 0 insertions, 80 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 14ab98ef62..16ba4f438c 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -279,26 +279,6 @@ config AP_STACK_SIZE the memory used by this initialisation process. Typically 4KB is enough space. -config TSC_CALIBRATION_BYPASS - bool "Bypass Time-Stamp Counter (TSC) calibration" - default n - help - By default U-Boot automatically calibrates Time-Stamp Counter (TSC) - running frequency via Model-Specific Register (MSR) and Programmable - Interval Timer (PIT). If the calibration does not work on your board, - select this option and provide a hardcoded TSC running frequency with - CONFIG_TSC_FREQ_IN_MHZ below. - - Normally this option should be turned on in a simulation environment - like qemu. - -config TSC_FREQ_IN_MHZ - int "Time-Stamp Counter (TSC) running frequency in MHz" - depends on TSC_CALIBRATION_BYPASS - default 1000 - help - The running frequency in MHz of Time-Stamp Counter (TSC). - config HAVE_VGA_BIOS bool "Add a VGA BIOS image" help diff --git a/arch/x86/cpu/qemu/Kconfig b/arch/x86/cpu/qemu/Kconfig index fb775d7d28..4f9862194a 100644 --- a/arch/x86/cpu/qemu/Kconfig +++ b/arch/x86/cpu/qemu/Kconfig @@ -6,7 +6,6 @@ config QEMU bool - select TSC_CALIBRATION_BYPASS if QEMU diff --git a/arch/x86/cpu/quark/Kconfig b/arch/x86/cpu/quark/Kconfig index bc961ef07c..163caac660 100644 --- a/arch/x86/cpu/quark/Kconfig +++ b/arch/x86/cpu/quark/Kconfig @@ -7,7 +7,6 @@ config INTEL_QUARK bool select HAVE_RMU - select TSC_CALIBRATION_BYPASS if INTEL_QUARK @@ -119,8 +118,4 @@ config SYS_CAR_SIZE Space in bytes in eSRAM used as Cache-As-ARM (CAR). Note this size must not exceed eSRAM's total size. -config TSC_FREQ_IN_MHZ - int - default 400 - endif diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h index 5966b7c07e..0ca518ca38 100644 --- a/arch/x86/include/asm/global_data.h +++ b/arch/x86/include/asm/global_data.h @@ -54,7 +54,6 @@ struct arch_global_data { uint8_t x86_mask; uint32_t x86_device; uint64_t tsc_base; /* Initial value returned by rdtsc() */ - uint32_t tsc_mhz; /* TSC frequency in MHz */ void *new_fdt; /* Relocated FDT */ uint32_t bist; /* Built-in self test value */ enum pei_boot_mode_t pei_boot_mode; diff --git a/arch/x86/lib/tsc_timer.c b/arch/x86/lib/tsc_timer.c index 4a95959e1b..6aa243723b 100644 --- a/arch/x86/lib/tsc_timer.c +++ b/arch/x86/lib/tsc_timer.c @@ -280,63 +280,12 @@ success: return delta / 1000; } -#ifndef CONFIG_TIMER -void timer_set_base(u64 base) -{ - gd->arch.tsc_base = base; -} - -/* - * Get the number of CPU time counter ticks since it was read first time after - * restart. This yields a free running counter guaranteed to take almost 6 - * years to wrap around even at 100GHz clock rate. - */ -u64 notrace get_ticks(void) -{ - u64 now_tick = rdtsc(); - - /* We assume that 0 means the base hasn't been set yet */ - if (!gd->arch.tsc_base) - panic("No tick base available"); - return now_tick - gd->arch.tsc_base; -} -#endif /* CONFIG_TIMER */ - /* Get the speed of the TSC timer in MHz */ unsigned notrace long get_tbclk_mhz(void) { -#ifdef CONFIG_TIMER return get_tbclk() / 1000000; -#else - unsigned long fast_calibrate; - - if (gd->arch.tsc_mhz) - return gd->arch.tsc_mhz; - -#ifdef CONFIG_TSC_CALIBRATION_BYPASS - fast_calibrate = CONFIG_TSC_FREQ_IN_MHZ; -#else - fast_calibrate = try_msr_calibrate_tsc(); - if (!fast_calibrate) { - - fast_calibrate = quick_pit_calibrate(); - if (!fast_calibrate) - panic("TSC frequency is ZERO"); - } -#endif - - gd->arch.tsc_mhz = fast_calibrate; - return fast_calibrate; -#endif } -#ifndef CONFIG_TIMER -unsigned long get_tbclk(void) -{ - return get_tbclk_mhz() * 1000 * 1000; -} -#endif - static ulong get_ms_timer(void) { return (get_ticks() * 1000) / get_tbclk(); @@ -386,7 +335,6 @@ int timer_init(void) return 0; } -#ifdef CONFIG_TIMER static int tsc_timer_get_count(struct udevice *dev, u64 *count) { u64 now_tick = rdtsc(); @@ -439,4 +387,3 @@ U_BOOT_DRIVER(tsc_timer) = { .ops = &tsc_timer_ops, .flags = DM_FLAG_PRE_RELOC, }; -#endif /* CONFIG_TIMER */ |