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authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-08 11:38:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-08 11:38:42 -0700
commit49b75b87ce2dfbd99e59a50c3681b154d07e3a22 (patch)
treef14e1da19a13d87a512f9043c2f37fd75dd122b3 /arch/arm/mach-iop13xx/include/mach/time.h
parentf1c7f79b6ab4f7ada002a0fae47f462ede6b6857 (diff)
parent097d9eb537ff4d88b74c3fe67392e27c478ca3c5 (diff)
Merge branch 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 5177/1: arm/mach-sa1100/Makefile: remove CONFIG_SA1100_USB [ARM] 5166/1: magician: add MAINTAINERS entry [ARM] fix pnx4008 build errors [ARM] Fix SMP booting with non-zero PHYS_OFFSET [ARM] 5185/1: Fix spi num_chipselect for lubbock [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach [ARM] Add support for arch/arm/mach-*/include and arch/arm/plat-*/include [ARM] Remove asm/hardware.h, use asm/arch/hardware.h instead [ARM] Eliminate useless includes of asm/mach-types.h [ARM] Fix circular include dependency with IRQ headers avr32: Use <mach/foo.h> instead of <asm/arch/foo.h> avr32: Introduce arch/avr32/mach-*/include/mach avr32: Move include/asm-avr32 to arch/avr32/include/asm [ARM] sa1100_wdt: use reset_status to remember watchdog reset status [ARM] pxa: introduce reset_status and clear_reset_status for driver's usage [ARM] pxa: introduce reset.h for reset specific header information
Diffstat (limited to 'arch/arm/mach-iop13xx/include/mach/time.h')
-rw-r--r--arch/arm/mach-iop13xx/include/mach/time.h107
1 files changed, 107 insertions, 0 deletions
diff --git a/arch/arm/mach-iop13xx/include/mach/time.h b/arch/arm/mach-iop13xx/include/mach/time.h
new file mode 100644
index 00000000000..49213d9d7ca
--- /dev/null
+++ b/arch/arm/mach-iop13xx/include/mach/time.h
@@ -0,0 +1,107 @@
+#ifndef _IOP13XX_TIME_H_
+#define _IOP13XX_TIME_H_
+#define IRQ_IOP_TIMER0 IRQ_IOP13XX_TIMER0
+
+#define IOP_TMR_EN 0x02
+#define IOP_TMR_RELOAD 0x04
+#define IOP_TMR_PRIVILEGED 0x08
+#define IOP_TMR_RATIO_1_1 0x00
+
+#define IOP13XX_XSI_FREQ_RATIO_MASK (3 << 19)
+#define IOP13XX_XSI_FREQ_RATIO_2 (0 << 19)
+#define IOP13XX_XSI_FREQ_RATIO_3 (1 << 19)
+#define IOP13XX_XSI_FREQ_RATIO_4 (2 << 19)
+#define IOP13XX_CORE_FREQ_MASK (7 << 16)
+#define IOP13XX_CORE_FREQ_600 (0 << 16)
+#define IOP13XX_CORE_FREQ_667 (1 << 16)
+#define IOP13XX_CORE_FREQ_800 (2 << 16)
+#define IOP13XX_CORE_FREQ_933 (3 << 16)
+#define IOP13XX_CORE_FREQ_1000 (4 << 16)
+#define IOP13XX_CORE_FREQ_1200 (5 << 16)
+
+void iop_init_time(unsigned long tickrate);
+unsigned long iop_gettimeoffset(void);
+
+static inline unsigned long iop13xx_core_freq(void)
+{
+ unsigned long freq = __raw_readl(IOP13XX_PROCESSOR_FREQ);
+ freq &= IOP13XX_CORE_FREQ_MASK;
+ switch (freq) {
+ case IOP13XX_CORE_FREQ_600:
+ return 600000000;
+ case IOP13XX_CORE_FREQ_667:
+ return 667000000;
+ case IOP13XX_CORE_FREQ_800:
+ return 800000000;
+ case IOP13XX_CORE_FREQ_933:
+ return 933000000;
+ case IOP13XX_CORE_FREQ_1000:
+ return 1000000000;
+ case IOP13XX_CORE_FREQ_1200:
+ return 1200000000;
+ default:
+ printk("%s: warning unknown frequency, defaulting to 800Mhz\n",
+ __FUNCTION__);
+ }
+
+ return 800000000;
+}
+
+static inline unsigned long iop13xx_xsi_bus_ratio(void)
+{
+ unsigned long ratio = __raw_readl(IOP13XX_PROCESSOR_FREQ);
+ ratio &= IOP13XX_XSI_FREQ_RATIO_MASK;
+ switch (ratio) {
+ case IOP13XX_XSI_FREQ_RATIO_2:
+ return 2;
+ case IOP13XX_XSI_FREQ_RATIO_3:
+ return 3;
+ case IOP13XX_XSI_FREQ_RATIO_4:
+ return 4;
+ default:
+ printk("%s: warning unknown ratio, defaulting to 2\n",
+ __FUNCTION__);
+ }
+
+ return 2;
+}
+
+static inline void write_tmr0(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c0, c9, 0" : : "r" (val));
+}
+
+static inline void write_tmr1(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c1, c9, 0" : : "r" (val));
+}
+
+static inline u32 read_tcr0(void)
+{
+ u32 val;
+ asm volatile("mrc p6, 0, %0, c2, c9, 0" : "=r" (val));
+ return val;
+}
+
+static inline u32 read_tcr1(void)
+{
+ u32 val;
+ asm volatile("mrc p6, 0, %0, c3, c9, 0" : "=r" (val));
+ return val;
+}
+
+static inline void write_trr0(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c4, c9, 0" : : "r" (val));
+}
+
+static inline void write_trr1(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c5, c9, 0" : : "r" (val));
+}
+
+static inline void write_tisr(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c6, c9, 0" : : "r" (val));
+}
+#endif