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authorRalf Baechle <ralf@linux-mips.org>2013-09-26 18:16:05 +0200
committerRalf Baechle <ralf@linux-mips.org>2013-10-29 21:25:17 +0100
commita6e95a86e02e4a60b4355c84d19dba2baf3d87ba (patch)
tree49cf0fb42b16d15ffb9d3944e3319f3403dccf9a /arch/mips/powertv/asic/asic_int.c
parent1d7bf993e0731b4ac790667c196b2a2d787f95c3 (diff)
MIPS: PowerTV: Remove support code.
Nobody seems to care about this platform anymore and my attempts to find somebody willing to provide some tlc for PowerTV have failed so far. So let's nuke the bloody thing. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/5910/
Diffstat (limited to 'arch/mips/powertv/asic/asic_int.c')
-rw-r--r--arch/mips/powertv/asic/asic_int.c125
1 files changed, 0 insertions, 125 deletions
diff --git a/arch/mips/powertv/asic/asic_int.c b/arch/mips/powertv/asic/asic_int.c
deleted file mode 100644
index f44cd9295cae..000000000000
--- a/arch/mips/powertv/asic/asic_int.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 2000, 2001, 2004 MIPS Technologies, Inc.
- * Copyright (C) 2001 Ralf Baechle
- * Portions copyright (C) 2009 Cisco Systems, Inc.
- *
- * This program is free software; you can distribute it and/or modify it
- * under the terms of the GNU General Public License (Version 2) as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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.,
- * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Routines for generic manipulation of the interrupts found on the PowerTV
- * platform.
- *
- * The interrupt controller is located in the South Bridge a PIIX4 device
- * with two internal 82C95 interrupt controllers.
- */
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/kernel_stat.h>
-#include <linux/kernel.h>
-#include <linux/random.h>
-
-#include <asm/irq_cpu.h>
-#include <linux/io.h>
-#include <asm/irq_regs.h>
-#include <asm/setup.h>
-#include <asm/mips-boards/generic.h>
-
-#include <asm/mach-powertv/asic_regs.h>
-
-static DEFINE_RAW_SPINLOCK(asic_irq_lock);
-
-static inline int get_int(void)
-{
- unsigned long flags;
- int irq;
-
- raw_spin_lock_irqsave(&asic_irq_lock, flags);
-
- irq = (asic_read(int_int_scan) >> 4) - 1;
-
- if (irq == 0 || irq >= NR_IRQS)
- irq = -1;
-
- raw_spin_unlock_irqrestore(&asic_irq_lock, flags);
-
- return irq;
-}
-
-static void asic_irqdispatch(void)
-{
- int irq;
-
- irq = get_int();
- if (irq < 0)
- return; /* interrupt has already been cleared */
-
- do_IRQ(irq);
-}
-
-static inline int clz(unsigned long x)
-{
- __asm__(
- " .set push \n"
- " .set mips32 \n"
- " clz %0, %1 \n"
- " .set pop \n"
- : "=r" (x)
- : "r" (x));
-
- return x;
-}
-
-/*
- * Version of ffs that only looks at bits 12..15.
- */
-static inline unsigned int irq_ffs(unsigned int pending)
-{
- return fls(pending) - 1 + CAUSEB_IP;
-}
-
-/*
- * TODO: check how it works under EIC mode.
- */
-asmlinkage void plat_irq_dispatch(void)
-{
- unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
- int irq;
-
- irq = irq_ffs(pending);
-
- if (irq == CAUSEF_IP3)
- asic_irqdispatch();
- else if (irq >= 0)
- do_IRQ(irq);
- else
- spurious_interrupt();
-}
-
-void __init arch_init_irq(void)
-{
- int i;
-
- asic_irq_init();
-
- /*
- * Initialize interrupt exception vectors.
- */
- if (cpu_has_veic || cpu_has_vint) {
- int nvec = cpu_has_veic ? 64 : 8;
- for (i = 0; i < nvec; i++)
- set_vi_handler(i, asic_irqdispatch);
- }
-}