From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/arch/hexagon/kernel/time.c | 38 ++++++++++++++------------------------
1 files changed, 14 insertions(+), 24 deletions(-)
diff --git a/kernel/arch/hexagon/kernel/time.c b/kernel/arch/hexagon/kernel/time.c
index 29b1f57..febc957 100644
--- a/kernel/arch/hexagon/kernel/time.c
+++ b/kernel/arch/hexagon/kernel/time.c
@@ -1,21 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Time related functions for Hexagon architecture
*
* Copyright (c) 2010-2011, 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
*/
#include <linux/init.h>
@@ -30,8 +17,9 @@
#include <linux/of_irq.h>
#include <linux/module.h>
-#include <asm/timer-regs.h>
#include <asm/hexagon_vm.h>
+
+#define TIMER_ENABLE BIT(0)
/*
* For the clocksource we need:
@@ -45,6 +33,13 @@
cycles_t pcycle_freq_mhz;
cycles_t thread_freq_mhz;
cycles_t sleep_clk_freq;
+
+/*
+ * 8x50 HDD Specs 5-8. Simulator co-sim not fixed until
+ * release 1.1, and then it's "adjustable" and probably not defaulted.
+ */
+#define RTOS_TIMER_INT 3
+#define RTOS_TIMER_REGS_ADDR 0xAB000000UL
static struct resource rtos_timer_resources[] = {
{
@@ -93,7 +88,7 @@
iowrite32(0, &rtos_timer->clear);
iowrite32(delta, &rtos_timer->match);
- iowrite32(1 << TIMER_ENABLE, &rtos_timer->enable);
+ iowrite32(TIMER_ENABLE, &rtos_timer->enable);
return 0;
}
@@ -156,13 +151,6 @@
return IRQ_HANDLED;
}
-/* This should also be pulled from devtree */
-static struct irqaction rtos_timer_intdesc = {
- .handler = timer_interrupt,
- .flags = IRQF_TIMER | IRQF_TRIGGER_RISING,
- .name = "rtos_timer"
-};
-
/*
* time_init_deferred - called by start_kernel to set up timer/clock source
*
@@ -176,6 +164,7 @@
{
struct resource *resource = NULL;
struct clock_event_device *ce_dev = &hexagon_clockevent_dev;
+ unsigned long flag = IRQF_TIMER | IRQF_TRIGGER_RISING;
ce_dev->cpumask = cpu_all_mask;
@@ -208,7 +197,8 @@
#endif
clockevents_register_device(ce_dev);
- setup_irq(ce_dev->irq, &rtos_timer_intdesc);
+ if (request_irq(ce_dev->irq, timer_interrupt, flag, "rtos_timer", NULL))
+ pr_err("Failed to register rtos_timer interrupt\n");
}
void __init time_init(void)
--
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