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0b7402dce4
The ARM Dual-Timer SP804 module is peripheral found not only on ARM32 platforms but also on ARM64 platforms. This patch moves the driver out of arch/arm to driver/clocksource so that it can be used on ARM64 platforms also. Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Rob Herring <robh@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Olof Johansson <olof@lixom.net> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
30 lines
1.1 KiB
C
30 lines
1.1 KiB
C
/*
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* ARM timer implementation, found in Integrator, Versatile and Realview
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* platforms. Not all platforms support all registers and bits in these
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* registers, so we mark them with A for Integrator AP, C for Integrator
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* CP, V for Versatile and R for Realview.
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*
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* Integrator AP has 16-bit timers, Integrator CP, Versatile and Realview
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* can have 16-bit or 32-bit selectable via a bit in the control register.
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*
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* Every SP804 contains two identical timers.
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*/
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#define TIMER_1_BASE 0x00
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#define TIMER_2_BASE 0x20
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#define TIMER_LOAD 0x00 /* ACVR rw */
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#define TIMER_VALUE 0x04 /* ACVR ro */
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#define TIMER_CTRL 0x08 /* ACVR rw */
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#define TIMER_CTRL_ONESHOT (1 << 0) /* CVR */
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#define TIMER_CTRL_32BIT (1 << 1) /* CVR */
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#define TIMER_CTRL_DIV1 (0 << 2) /* ACVR */
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#define TIMER_CTRL_DIV16 (1 << 2) /* ACVR */
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#define TIMER_CTRL_DIV256 (2 << 2) /* ACVR */
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#define TIMER_CTRL_IE (1 << 5) /* VR */
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#define TIMER_CTRL_PERIODIC (1 << 6) /* ACVR */
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#define TIMER_CTRL_ENABLE (1 << 7) /* ACVR */
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#define TIMER_INTCLR 0x0c /* ACVR wo */
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#define TIMER_RIS 0x10 /* CVR ro */
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#define TIMER_MIS 0x14 /* CVR ro */
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#define TIMER_BGLOAD 0x18 /* CVR rw */
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