512a0200de
All the kernel header files now use pargma once rather than the ifndef, as the pre-processed C files do not change while header files are protected with pargma once. This will also solve any naming issues caused by ifndef.
128 lines
4 KiB
C
128 lines
4 KiB
C
/*
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* Copyright 2014, General Dynamics C4 Systems
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*
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* SPDX-License-Identifier: GPL-2.0-only
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*/
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#pragma once
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#include <stdint.h>
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/*
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* Samsung Exynos multi-core timer implementation
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* Samsung has a habit of ripping out ARM IP and
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* replacing it with their own.
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*/
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#define GCNTWSTAT_CNTH (1U << 1)
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#define GCNTWSTAT_CNTL (1U << 0)
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#define GTCON_EN (1U << 8)
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#define GTCON_COMP3_AUTOINC (1U << 7)
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#define GTCON_COMP3_EN (1U << 6)
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#define GTCON_COMP2_AUTOINC (1U << 5)
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#define GTCON_COMP2_EN (1U << 4)
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#define GTCON_COMP1_AUTOINC (1U << 3)
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#define GTCON_COMP1_EN (1U << 2)
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#define GTCON_COMP0_AUTOINC (1U << 1)
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#define GTCON_COMP0_EN (1U << 0)
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#define GINT_COMP3_IRQ (1U << 3)
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#define GINT_COMP2_IRQ (1U << 2)
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#define GINT_COMP1_IRQ (1U << 1)
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#define GINT_COMP0_IRQ (1U << 0)
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#define GWSTAT_TCON (1U << 16)
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#define GWSTAT_COMP3_ADD_INC (1U << 14)
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#define GWSTAT_COMP3H (1U << 13)
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#define GWSTAT_COMP3L (1U << 12)
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#define GWSTAT_COMP2_ADD_INC (1U << 10)
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#define GWSTAT_COMP2H (1U << 9)
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#define GWSTAT_COMP2L (1U << 8)
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#define GWSTAT_COMP1_ADD_INC (1U << 6)
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#define GWSTAT_COMP1H (1U << 5)
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#define GWSTAT_COMP1L (1U << 4)
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#define GWSTAT_COMP0_ADD_INC (1U << 2)
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#define GWSTAT_COMP0H (1U << 1)
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#define GWSTAT_COMP0L (1U << 0)
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#define LTCON_XXX0 (1U << 3)
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#define LTCON_INTERVAL_MODE (1U << 2)
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#define LTCON_IEN (1U << 1)
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#define LTCON_EN (1U << 0)
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#define LTWSTAT_TCON (1U << 3)
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#define LTWSTAT_TCOMP (1U << 1)
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#define LTWSTAT_TCNT (1U << 0)
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struct mct_global_map {
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uint32_t reserved0[64];
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uint32_t cntl; /* 0x100 Low word of count */
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uint32_t cnth; /* 0x104 High word of count */
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uint32_t reserved1[1];
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uint32_t cnt_wstat; /* 0x110 Write status for cnt */
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uint32_t reserved2[60];
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uint32_t comp0l; /* 0x200 Low word of Compare value */
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uint32_t comp0h; /* 0x204 High word of Compare value*/
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uint32_t comp0_add_inc; /* 0x208 Low word of Automatic increment amount */
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uint32_t comp0_res;
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uint32_t comp1l; /* 0x210 Low word of Compare value */
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uint32_t comp1h; /* 0x214 High word of Compare value*/
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uint32_t comp1_add_inc; /* 0x218 Low word of Automatic increment amount */
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uint32_t comp1_res;
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uint32_t comp2l; /* 0x220 Low word of Compare value */
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uint32_t comp2h; /* 0x224 High word of Compare value*/
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uint32_t comp2_add_inc; /* 0x228 Low word of Automatic increment amount */
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uint32_t comp2_res;
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uint32_t comp3l; /* 0x230 Low word of Compare value */
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uint32_t comp3h; /* 0x234 High word of Compare value*/
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uint32_t comp3_add_inc; /* 0x238 Low word of Automatic increment amount */
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uint32_t comp3_res;
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uint32_t tcon; /* 0x240 Timer control */
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uint32_t int_stat; /* 0x244 Interrupt pending status */
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uint32_t int_en; /* 0x248 Interrupt enable */
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uint32_t wstat; /* 0x24C write status */
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uint32_t reserved3[44];
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};
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struct mct_local_map {
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uint32_t tcompl; /* 0x00 */
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uint32_t tcntl; /* 0x04 */
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uint32_t tcomph; /* 0x08 */
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uint32_t tcnth; /* 0x0C */
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uint32_t reserved0[4];
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uint32_t tcon; /* 0x20 Timer control */
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uint32_t int_stat; /* 0x30 Interrupt status */
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uint32_t int_en; /* 0x34 Interrupt enable */
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uint32_t reserved1[2];
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uint32_t wstat; /* 0x40 Write status */
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uint32_t reserved2[50];
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};
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struct mct_map {
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struct mct_global_map global;
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struct mct_local_map local[4];
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};
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typedef volatile struct mct_map timer_t;
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extern timer_t *mct;
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static inline void mct_reset(void)
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{
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mct->global.int_stat = mct->global.int_stat;
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}
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static inline void mct_clear_write_status(void)
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{
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/* Clear write status */
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mct->global.wstat = mct->global.wstat;
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mct->global.cnt_wstat = mct->global.cnt_wstat;
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}
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