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- #ifndef __PLAT_MTU_H
- #define __PLAT_MTU_H
- /* should be set by the platform code */
- extern void __iomem *mtu_base;
- /*
- * The MTU device hosts four different counters, with 4 set of
- * registers. These are register names.
- */
- #define MTU_IMSC 0x00 /* Interrupt mask set/clear */
- #define MTU_RIS 0x04 /* Raw interrupt status */
- #define MTU_MIS 0x08 /* Masked interrupt status */
- #define MTU_ICR 0x0C /* Interrupt clear register */
- /* per-timer registers take 0..3 as argument */
- #define MTU_LR(x) (0x10 + 0x10 * (x) + 0x00) /* Load value */
- #define MTU_VAL(x) (0x10 + 0x10 * (x) + 0x04) /* Current value */
- #define MTU_CR(x) (0x10 + 0x10 * (x) + 0x08) /* Control reg */
- #define MTU_BGLR(x) (0x10 + 0x10 * (x) + 0x0c) /* At next overflow */
- /* bits for the control register */
- #define MTU_CRn_ENA 0x80
- #define MTU_CRn_PERIODIC 0x40 /* if 0 = free-running */
- #define MTU_CRn_PRESCALE_MASK 0x0c
- #define MTU_CRn_PRESCALE_1 0x00
- #define MTU_CRn_PRESCALE_16 0x04
- #define MTU_CRn_PRESCALE_256 0x08
- #define MTU_CRn_32BITS 0x02
- #define MTU_CRn_ONESHOT 0x01 /* if 0 = wraps reloading from BGLR*/
- /* Other registers are usual amba/primecell registers, currently not used */
- #define MTU_ITCR 0xff0
- #define MTU_ITOP 0xff4
- #define MTU_PERIPH_ID0 0xfe0
- #define MTU_PERIPH_ID1 0xfe4
- #define MTU_PERIPH_ID2 0xfe8
- #define MTU_PERIPH_ID3 0xfeC
- #define MTU_PCELL0 0xff0
- #define MTU_PCELL1 0xff4
- #define MTU_PCELL2 0xff8
- #define MTU_PCELL3 0xffC
- #endif /* __PLAT_MTU_H */
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