diff options
Diffstat (limited to 'payloads/libpayload/drivers/timer/cygnus.c')
| -rw-r--r-- | payloads/libpayload/drivers/timer/cygnus.c | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/payloads/libpayload/drivers/timer/cygnus.c b/payloads/libpayload/drivers/timer/cygnus.c deleted file mode 100644 index c8f2098608..0000000000 --- a/payloads/libpayload/drivers/timer/cygnus.c +++ /dev/null @@ -1,52 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2015 Google Electronics - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * 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. - */ -#include <libpayload.h> - -struct cygnus_timer { - u32 gtim_glob_low; - u32 gtim_glob_hi; - u32 gtim_glob_ctrl; -}; - -static struct cygnus_timer * const timer_ptr = - (void *)CONFIG_LP_IPROC_PERIPH_GLB_TIM_REG_BASE; - -uint64_t timer_hz(void) -{ - /* - * this is set up by coreboot as follows: - * - * PERIPH_CLOCK / - * (((TIMER_GLB_TIM_CTRL_PRESC & TIMER_GLB_TIM_CTRL_PRESC_MASK)>>8) + 1) - * - * where PERIPH_CLOCK is typically 500000000. - */ - return 500000000; -} - -uint64_t timer_raw_value(void) -{ - uint64_t cur_tick; - uint32_t count_h; - uint32_t count_l; - - do { - count_h = readl(&timer_ptr->gtim_glob_hi); - count_l = readl(&timer_ptr->gtim_glob_low); - cur_tick = readl(&timer_ptr->gtim_glob_hi); - } while (cur_tick != count_h); - - return (cur_tick << 32) + count_l; -} |