summaryrefslogtreecommitdiff
path: root/arch/mips/pmcs-msp71xx/msp_time.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/pmcs-msp71xx/msp_time.c')
-rw-r--r--arch/mips/pmcs-msp71xx/msp_time.c90
1 files changed, 0 insertions, 90 deletions
diff --git a/arch/mips/pmcs-msp71xx/msp_time.c b/arch/mips/pmcs-msp71xx/msp_time.c
deleted file mode 100644
index 9c629829f447..000000000000
--- a/arch/mips/pmcs-msp71xx/msp_time.c
+++ /dev/null
@@ -1,90 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Setting up the clock on MSP SOCs. No RTC typically.
- *
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
- *
- * ########################################################################
- *
- * ########################################################################
- */
-
-#include <linux/init.h>
-#include <linux/kernel_stat.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/ptrace.h>
-
-#include <asm/cevt-r4k.h>
-#include <asm/mipsregs.h>
-#include <asm/time.h>
-
-#include <msp_prom.h>
-#include <msp_int.h>
-#include <msp_regs.h>
-
-#define get_current_vpe() \
- ((read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & TCBIND_CURVPE)
-
-static int tim_installed;
-
-void __init plat_time_init(void)
-{
- char *endp, *s;
- unsigned long cpu_rate = 0;
-
- if (cpu_rate == 0) {
- s = prom_getenv("clkfreqhz");
- cpu_rate = simple_strtoul(s, &endp, 10);
- if (endp != NULL && *endp != 0) {
- printk(KERN_ERR
- "Clock rate in Hz parse error: %s\n", s);
- cpu_rate = 0;
- }
- }
-
- if (cpu_rate == 0) {
- s = prom_getenv("clkfreq");
- cpu_rate = 1000 * simple_strtoul(s, &endp, 10);
- if (endp != NULL && *endp != 0) {
- printk(KERN_ERR
- "Clock rate in MHz parse error: %s\n", s);
- cpu_rate = 0;
- }
- }
-
- if (cpu_rate == 0) {
-#if defined(CONFIG_PMC_MSP7120_EVAL) \
- || defined(CONFIG_PMC_MSP7120_GW)
- cpu_rate = 400000000;
-#elif defined(CONFIG_PMC_MSP7120_FPGA)
- cpu_rate = 25000000;
-#else
- cpu_rate = 150000000;
-#endif
- printk(KERN_ERR
- "Failed to determine CPU clock rate, "
- "assuming %ld hz ...\n", cpu_rate);
- }
-
- printk(KERN_WARNING "Clock rate set to %ld\n", cpu_rate);
-
- /* timer frequency is 1/2 clock rate */
- mips_hpt_frequency = cpu_rate/2;
-}
-
-unsigned int get_c0_compare_int(void)
-{
- unsigned long flags = IRQF_PERCPU | IRQF_TIMER | IRQF_SHARED;
-
- /* MIPS_MT modes may want timer for second VPE */
- if ((get_current_vpe()) && !tim_installed) {
- if (request_irq(MSP_INT_VPE1_TIMER, c0_compare_interrupt, flags,
- "timer", c0_compare_interrupt))
- pr_err("Failed to register timer interrupt\n");
- tim_installed++;
- }
-
- return get_current_vpe() ? MSP_INT_VPE1_TIMER : MSP_INT_VPE0_TIMER;
-}