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62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/*
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* Timer/Watchdog driver for Tegra X1
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*
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* Copyright (c) 2019 CTCaer
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _TIMER_H_
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#define _TIMER_H_
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#include <utils/types.h>
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// TMR registers.
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#define TIMERUS_CNTR_1US (0x10 + 0x0)
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#define TIMERUS_USEC_CFG (0x10 + 0x4)
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#define TIMER_TMR8_TMR_PTV 0x78
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#define TIMER_TMR9_TMR_PTV 0x80
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#define TIMER_PER_EN BIT(30)
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#define TIMER_EN BIT(31)
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#define TIMER_TMR8_TMR_PCR 0x7C
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#define TIMER_TMR9_TMR_PCR 0x8C
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#define TIMER_INTR_CLR BIT(30)
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// WDT registers.
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#define TIMER_WDT4_CONFIG (0x100 + 0x80)
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#define TIMER_SRC(TMR) ((TMR) & 0xF)
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#define TIMER_PER(PER) (((PER) & 0xFF) << 4)
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#define TIMER_IRQENABL_EN BIT(12)
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#define TIMER_FIQENABL_EN BIT(13)
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#define TIMER_SYSRESET_EN BIT(14)
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#define TIMER_PMCRESET_EN BIT(15)
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#define TIMER_WDT4_COMMAND (0x108 + 0x80)
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#define TIMER_START_CNT BIT(0)
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#define TIMER_CNT_DISABLE BIT(1)
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#define TIMER_WDT4_UNLOCK_PATTERN (0x10C + 0x80)
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#define TIMER_MAGIC_PTRN 0xC45A
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u32 get_tmr_us();
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u32 get_tmr_ms();
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u32 get_tmr_s();
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void usleep(u32 us);
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void msleep(u32 ms);
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void timer_usleep(u32 us);
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void watchdog_start(u32 us, u32 mode);
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void watchdog_end();
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void watchdog_handle();
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bool watchdog_fired();
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#endif
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