diff options
Diffstat (limited to 'src/soc/imgtec/pistachio/monotonic_timer.c')
| -rw-r--r-- | src/soc/imgtec/pistachio/monotonic_timer.c | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/src/soc/imgtec/pistachio/monotonic_timer.c b/src/soc/imgtec/pistachio/monotonic_timer.c deleted file mode 100644 index 3bc65a54ae..0000000000 --- a/src/soc/imgtec/pistachio/monotonic_timer.c +++ /dev/null @@ -1,53 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2014 Google Inc. - * - * 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 <arch/cpu.h> -#include <device/mmio.h> -#include <soc/cpu.h> -#include <stdint.h> -#include <timer.h> - -#define PISTACHIO_CLOCK_SWITCH 0xB8144200 -#define MIPS_EXTERN_PLL_BYPASS_MASK 0x00000002 - -static int get_count_mhz_freq(void) -{ - static unsigned int count_mhz_freq; - - if (!count_mhz_freq) { - if (IMG_PLATFORM_ID() != IMG_PLATFORM_ID_SILICON) - count_mhz_freq = 25; /* FPGA board */ - else { - /* If MIPS PLL external bypass bit is set, it means - * that the MIPS PLL is already set up to work at a - * frequency of 550 MHz; otherwise, the crystal is - * used with a frequency of 52 MHz - */ - if (read32_x(PISTACHIO_CLOCK_SWITCH) & - MIPS_EXTERN_PLL_BYPASS_MASK) - /* Half MIPS PLL freq. */ - count_mhz_freq = 275; - else - /* Half Xtal freq. */ - count_mhz_freq = 26; - } - } - return count_mhz_freq; -} - -void timer_monotonic_get(struct mono_time *mt) -{ - mono_time_set_usecs(mt, read_c0_count() / get_count_mhz_freq()); -} |