diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-07 15:59:39 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-07 15:59:39 -0800 |
commit | 322aafa6645a48c3b7837ca7385f126ab78127fd (patch) | |
tree | 50f6665aedcf051cecd571183df81ba7f248014b /arch/x86/include/asm/apb_timer.h | |
parent | dd04265b028c00c365a78f9ff78a05e217f98656 (diff) | |
parent | c7bbf52aa4fa332b84c4f2bb33e69561ee6870b4 (diff) |
Merge branch 'x86-mrst-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-mrst-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (30 commits)
x86, mrst: Fix whitespace breakage in apb_timer.c
x86, mrst: Fix APB timer per cpu clockevent
x86, mrst: Remove X86_MRST dependency on PCI_IOAPIC
x86, olpc: Use pci subarch init for OLPC
x86, pci: Add arch_init to x86_init abstraction
x86, mrst: Add Kconfig dependencies for Moorestown
x86, pci: Exclude Moorestown PCI code if CONFIG_X86_MRST=n
x86, numaq: Make CONFIG_X86_NUMAQ depend on CONFIG_PCI
x86, pci: Add sanity check for PCI fixed bar probing
x86, legacy_irq: Remove duplicate vector assigment
x86, legacy_irq: Remove left over nr_legacy_irqs
x86, mrst: Platform clock setup code
x86, apbt: Moorestown APB system timer driver
x86, mrst: Add vrtc platform data setup code
x86, mrst: Add platform timer info parsing code
x86, mrst: Fill in PCI functions in x86_init layer
x86, mrst: Add dummy legacy pic to platform setup
x86/PCI: Moorestown PCI support
x86, ioapic: Add dummy ioapic functions
x86, ioapic: Early enable ioapic for timer irq
...
Fixed up semantic conflict of new clocksources due to commit
17622339af25 ("clocksource: add argument to resume callback").
Diffstat (limited to 'arch/x86/include/asm/apb_timer.h')
-rw-r--r-- | arch/x86/include/asm/apb_timer.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/arch/x86/include/asm/apb_timer.h b/arch/x86/include/asm/apb_timer.h new file mode 100644 index 00000000000..c74a2eebe57 --- /dev/null +++ b/arch/x86/include/asm/apb_timer.h @@ -0,0 +1,70 @@ +/* + * apb_timer.h: Driver for Langwell APB timer based on Synopsis DesignWare + * + * (C) Copyright 2009 Intel Corporation + * Author: Jacob Pan (jacob.jun.pan@intel.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; version 2 + * of the License. + * + * Note: + */ + +#ifndef ASM_X86_APBT_H +#define ASM_X86_APBT_H +#include <linux/sfi.h> + +#ifdef CONFIG_APB_TIMER + +/* Langwell DW APB timer registers */ +#define APBTMR_N_LOAD_COUNT 0x00 +#define APBTMR_N_CURRENT_VALUE 0x04 +#define APBTMR_N_CONTROL 0x08 +#define APBTMR_N_EOI 0x0c +#define APBTMR_N_INT_STATUS 0x10 + +#define APBTMRS_INT_STATUS 0xa0 +#define APBTMRS_EOI 0xa4 +#define APBTMRS_RAW_INT_STATUS 0xa8 +#define APBTMRS_COMP_VERSION 0xac +#define APBTMRS_REG_SIZE 0x14 + +/* register bits */ +#define APBTMR_CONTROL_ENABLE (1<<0) +#define APBTMR_CONTROL_MODE_PERIODIC (1<<1) /*1: periodic 0:free running */ +#define APBTMR_CONTROL_INT (1<<2) + +/* default memory mapped register base */ +#define LNW_SCU_ADDR 0xFF100000 +#define LNW_EXT_TIMER_OFFSET 0x1B800 +#define APBT_DEFAULT_BASE (LNW_SCU_ADDR+LNW_EXT_TIMER_OFFSET) +#define LNW_EXT_TIMER_PGOFFSET 0x800 + +/* APBT clock speed range from PCLK to fabric base, 25-100MHz */ +#define APBT_MAX_FREQ 50 +#define APBT_MIN_FREQ 1 +#define APBT_MMAP_SIZE 1024 + +#define APBT_DEV_USED 1 + +extern void apbt_time_init(void); +extern struct clock_event_device *global_clock_event; +extern unsigned long apbt_quick_calibrate(void); +extern int arch_setup_apbt_irqs(int irq, int trigger, int mask, int cpu); +extern void apbt_setup_secondary_clock(void); +extern unsigned int boot_cpu_id; +extern int disable_apbt_percpu; + +extern struct sfi_timer_table_entry *sfi_get_mtmr(int hint); +extern void sfi_free_mtmr(struct sfi_timer_table_entry *mtmr); +extern int sfi_mtimer_num; + +#else /* CONFIG_APB_TIMER */ + +static inline unsigned long apbt_quick_calibrate(void) {return 0; } +static inline void apbt_time_init(void) {return 0; } + +#endif +#endif /* ASM_X86_APBT_H */ |