diff options
author | Arnd Bergmann <arnd@arndb.de> | 2018-03-07 21:46:52 +0100 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2018-03-09 23:20:01 +0100 |
commit | b8c9c8f0190f4004d3d4364edb2dea5978dfc824 (patch) | |
tree | 8bc377829b6452cb3b9c17253916c64e93cb695f /arch/score/kernel/time.c | |
parent | 553b085c2075f6a4a2591108554f830fa61e881f (diff) |
arch: remove score port
The Sunplus S+core architecture was added in 2009 by Chen Liqin,
who has been co-maintaining it with Lennox Wu <lennox.wu@gmail.com>
since then, but after they both left the company, nobody else has shown
any interest in the port and it has seen almost no activity other than
tree-wide changes.
The gcc port was removed a few years ago due to the inactivity.
While the sunplus website still advertises products with unspecified
RISC cores that might be S+core based, it's very clear that the Linux
port is completely abandoned at this point.
This removes all files related to the architecture.
Acked-by: Lennox Wu <lennox.wu@gmail.com>
Link: http://www.sunplus.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/score/kernel/time.c')
-rw-r--r-- | arch/score/kernel/time.c | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/arch/score/kernel/time.c b/arch/score/kernel/time.c deleted file mode 100644 index 29aafc741f69..000000000000 --- a/arch/score/kernel/time.c +++ /dev/null @@ -1,90 +0,0 @@ -/* - * arch/score/kernel/time.c - * - * Score Processor version. - * - * Copyright (C) 2009 Sunplus Core Technology Co., Ltd. - * Chen Liqin <liqin.chen@sunplusct.com> - * Lennox Wu <lennox.wu@sunplusct.com> - * - * 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; either version 2 of the License, or - * (at your option) any later version. - * - * 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, see the file COPYING, or write - * to the Free Software Foundation, Inc., - * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <linux/clockchips.h> -#include <linux/interrupt.h> - -#include <asm/scoreregs.h> - -static irqreturn_t timer_interrupt(int irq, void *dev_id) -{ - struct clock_event_device *evdev = dev_id; - - /* clear timer interrupt flag */ - outl(1, P_TIMER0_CPP_REG); - evdev->event_handler(evdev); - - return IRQ_HANDLED; -} - -static struct irqaction timer_irq = { - .handler = timer_interrupt, - .flags = IRQF_TIMER, - .name = "timer", -}; - -static int score_timer_set_next_event(unsigned long delta, - struct clock_event_device *evdev) -{ - outl((TMR_M_PERIODIC | TMR_IE_ENABLE), P_TIMER0_CTRL); - outl(delta, P_TIMER0_PRELOAD); - outl(inl(P_TIMER0_CTRL) | TMR_ENABLE, P_TIMER0_CTRL); - - return 0; -} - -static int score_timer_set_periodic(struct clock_event_device *evt) -{ - outl((TMR_M_PERIODIC | TMR_IE_ENABLE), P_TIMER0_CTRL); - outl(SYSTEM_CLOCK / HZ, P_TIMER0_PRELOAD); - outl(inl(P_TIMER0_CTRL) | TMR_ENABLE, P_TIMER0_CTRL); - return 0; -} - -static struct clock_event_device score_clockevent = { - .name = "score_clockevent", - .features = CLOCK_EVT_FEAT_PERIODIC, - .shift = 16, - .set_next_event = score_timer_set_next_event, - .set_state_periodic = score_timer_set_periodic, -}; - -void __init time_init(void) -{ - timer_irq.dev_id = &score_clockevent; - setup_irq(IRQ_TIMER , &timer_irq); - - /* setup COMPARE clockevent */ - score_clockevent.mult = div_sc(SYSTEM_CLOCK, NSEC_PER_SEC, - score_clockevent.shift); - score_clockevent.max_delta_ns = clockevent_delta2ns((u32)~0, - &score_clockevent); - score_clockevent.max_delta_ticks = (u32)~0; - score_clockevent.min_delta_ns = clockevent_delta2ns(50, - &score_clockevent) + 1; - score_clockevent.min_delta_ticks = 50; - score_clockevent.cpumask = cpumask_of(0); - clockevents_register_device(&score_clockevent); -} |