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31 lines
1.2 KiB
31 lines
1.2 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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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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