u-boot/arch/arm/include/asm/arch-tegra114/sysctr.h
Tom Warren b40f734af9 Tegra114: Initialize System Counter (TSC) with osc frequency
T114 needs the SYSCTR0 counter initialized so the TSC can be
read by the kernel. Do it in the bootloader since it's a write-once
deal (secure/non-secure mode dependent).

Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
2013-04-15 11:01:38 -07:00

35 lines
1.3 KiB
C

/*
* Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _TEGRA114_SYSCTR_H_
#define _TEGRA114_SYSCTR_H_
struct sysctr_ctlr {
u32 cntcr; /* 0x00: SYSCTR0_CNTCR Counter Control */
u32 cntsr; /* 0x04: SYSCTR0_CNTSR Counter Status */
u32 cntcv0; /* 0x08: SYSCTR0_CNTCV0 Counter Count 31:00 */
u32 cntcv1; /* 0x0C: SYSCTR0_CNTCV1 Counter Count 63:32 */
u32 reserved1[4]; /* 0x10 - 0x1C */
u32 cntfid0; /* 0x20: SYSCTR0_CNTFID0 Freq Table Entry */
u32 cntfid1; /* 0x24: SYSCTR0_CNTFID1 Freq Table End */
u32 reserved2[1002]; /* 0x28 - 0xFCC */
u32 counterid[12]; /* 0xFD0 - 0xFxx CounterID regs, RO */
};
#define TSC_CNTCR_ENABLE (1 << 0) /* Enable */
#define TSC_CNTCR_HDBG (1 << 1) /* Halt on debug */
#endif /* _TEGRA114_SYSCTR_H_ */