| /* |
| * (C) Copyright 2009 Alessandro Rubini |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #ifndef __ASM_ARCH_MTU_H |
| #define __ASM_ARCH_MTU_H |
| |
| /* |
| * 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 /* __ASM_ARCH_MTU_H */ |
