^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * This software is available to you under a choice of one of two
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * licenses. You may choose to be licensed under the terms of the GNU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * General Public License (GPL) Version 2, available from the file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * COPYING in the main directory of this source tree, or the NetLogic
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * license below:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Redistribution and use in source and binary forms, with or without
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * modification, are permitted provided that the following conditions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * are met:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * 1. Redistributions of source code must retain the above copyright
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * notice, this list of conditions and the following disclaimer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * 2. Redistributions in binary form must reproduce the above copyright
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * notice, this list of conditions and the following disclaimer in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * the documentation and/or other materials provided with the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * distribution.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include <asm/time.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #include <asm/cpu-features.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #include <asm/netlogic/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #include <asm/netlogic/common.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #include <asm/netlogic/haldefs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #if defined(CONFIG_CPU_XLP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #include <asm/netlogic/xlp-hal/iomap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #include <asm/netlogic/xlp-hal/xlp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #include <asm/netlogic/xlp-hal/sys.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #include <asm/netlogic/xlp-hal/pic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #elif defined(CONFIG_CPU_XLR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #include <asm/netlogic/xlr/iomap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #include <asm/netlogic/xlr/pic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #include <asm/netlogic/xlr/xlr.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #error "Unknown CPU"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) unsigned int get_c0_compare_int(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) return IRQ_TIMER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static u64 nlm_get_pic_timer(struct clocksource *cs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) uint64_t picbase = nlm_get_node(0)->picbase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) return ~nlm_pic_read_timer(picbase, PIC_CLOCK_TIMER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) static u64 nlm_get_pic_timer32(struct clocksource *cs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) uint64_t picbase = nlm_get_node(0)->picbase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) return ~nlm_pic_read_timer32(picbase, PIC_CLOCK_TIMER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) static struct clocksource csrc_pic = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) .name = "PIC",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) .flags = CLOCK_SOURCE_IS_CONTINUOUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) static void nlm_init_pic_timer(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) uint64_t picbase = nlm_get_node(0)->picbase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) u32 picfreq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) nlm_pic_set_timer(picbase, PIC_CLOCK_TIMER, ~0ULL, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) if (current_cpu_data.cputype == CPU_XLR) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) csrc_pic.mask = CLOCKSOURCE_MASK(32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) csrc_pic.read = nlm_get_pic_timer32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) csrc_pic.mask = CLOCKSOURCE_MASK(64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) csrc_pic.read = nlm_get_pic_timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) csrc_pic.rating = 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) picfreq = pic_timer_freq();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) clocksource_register_hz(&csrc_pic, picfreq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) pr_info("PIC clock source added, frequency %d\n", picfreq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) void __init plat_time_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) nlm_init_pic_timer();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) mips_hpt_frequency = nlm_get_cpu_frequency();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) if (current_cpu_type() == CPU_XLR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) preset_lpj = mips_hpt_frequency / (3 * HZ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) preset_lpj = mips_hpt_frequency / (2 * HZ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) pr_info("MIPS counter frequency [%ld]\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) (unsigned long)mips_hpt_frequency);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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