| /* Copyright (c) 2013, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that 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. |
| * |
| */ |
| #ifndef _WALLCLK_H |
| #define _WALLCLK_H |
| |
| /* wallclock register offset */ |
| #define CTRL_REG_OFFSET 0x0 |
| #define PULSE_CNT_REG_OFFSET 0x4 |
| #define CLK_CNT_SNAPSHOT_REG_OFFSET 0x8 |
| #define CLK_CNT_REG_OFFSET 0xC |
| #define CLK_BASE_TIME0_OFFSET 0x24 |
| #define CLK_BASE_TIME1_OFFSET 0x28 |
| |
| /* ctrl register bitmap */ |
| #define CTRL_TIME_SRC_POS 0 |
| #define CTRL_TIME_SRC_MASK 0x0000000F |
| #define CTRL_SW_BITS_POS 4 |
| #define CTRL_SW_BITS_MASK 0x7FFFFFF0 |
| #define CTRL_ENA_DIS_POS 31 |
| #define CTRL_ENABLE_MASK 0x80000000 |
| |
| /* clock rate from time source */ |
| #define CLK_RATE 122880000 /* 122.88 Mhz */ |
| #define PPNS_PULSE 2 /* PP2S */ |
| |
| #define MAX_SFN 1023 |
| #define SFN_PER_SECOND 100 |
| |
| extern int wallclk_set_sfn(u16 sfn); |
| extern int wallclk_get_sfn(void); |
| extern int wallclk_set_sfn_ref(u16 sfn); |
| extern int wallclk_get_sfn_ref(void); |
| extern int wallclk_reg_read(u32 offset, u32 *p); |
| extern int wallclk_reg_write(u32 offset, u32 value); |
| |
| #endif /* _WALLCLK_H */ |
