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1/*
2 * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version.
8 *
9 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
10 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
12 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
13 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
14 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
15 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
16 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
17 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
18 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write to the Free Software Foundation, Inc.,
22 * 675 Mass Ave, Cambridge, MA 02139, USA.
23 */
24
25#include <linux/types.h>
26#include <linux/interrupt.h>
27#include <linux/irq.h>
28#include <asm/setup.h>
29#include <asm/irq_cpu.h>
30#include <bcm47xx.h>
31
32asmlinkage void plat_irq_dispatch(void)
33{
34 u32 cause;
35
36 cause = read_c0_cause() & read_c0_status() & CAUSEF_IP;
37
38 clear_c0_status(cause);
39
40 if (cause & CAUSEF_IP7)
41 do_IRQ(7);
42 if (cause & CAUSEF_IP2)
43 do_IRQ(2);
44 if (cause & CAUSEF_IP3)
45 do_IRQ(3);
46 if (cause & CAUSEF_IP4)
47 do_IRQ(4);
48 if (cause & CAUSEF_IP5)
49 do_IRQ(5);
50 if (cause & CAUSEF_IP6)
51 do_IRQ(6);
52}
53
54#define DEFINE_HWx_IRQDISPATCH(x) \
55 static void bcm47xx_hw ## x ## _irqdispatch(void) \
56 { \
57 do_IRQ(x); \
58 }
59DEFINE_HWx_IRQDISPATCH(2)
60DEFINE_HWx_IRQDISPATCH(3)
61DEFINE_HWx_IRQDISPATCH(4)
62DEFINE_HWx_IRQDISPATCH(5)
63DEFINE_HWx_IRQDISPATCH(6)
64DEFINE_HWx_IRQDISPATCH(7)
65
66void __init arch_init_irq(void)
67{
68#ifdef CONFIG_BCM47XX_BCMA
69 if (bcm47xx_bus_type == BCM47XX_BUS_TYPE_BCMA) {
70 bcma_write32(bcm47xx_bus.bcma.bus.drv_mips.core,
71 BCMA_MIPS_MIPS74K_INTMASK(5), 1 << 31);
72 /*
73 * the kernel reads the timer irq from some register and thinks
74 * it's #5, but we offset it by 2 and route to #7
75 */
76 cp0_compare_irq = 7;
77 }
78#endif
79 mips_cpu_irq_init();
80
81 if (cpu_has_vint) {
82 pr_info("Setting up vectored interrupts\n");
83 set_vi_handler(2, bcm47xx_hw2_irqdispatch);
84 set_vi_handler(3, bcm47xx_hw3_irqdispatch);
85 set_vi_handler(4, bcm47xx_hw4_irqdispatch);
86 set_vi_handler(5, bcm47xx_hw5_irqdispatch);
87 set_vi_handler(6, bcm47xx_hw6_irqdispatch);
88 set_vi_handler(7, bcm47xx_hw7_irqdispatch);
89 }
90}
1/*
2 * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version.
8 *
9 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
10 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
12 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
13 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
14 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
15 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
16 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
17 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
18 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write to the Free Software Foundation, Inc.,
22 * 675 Mass Ave, Cambridge, MA 02139, USA.
23 */
24
25#include <linux/types.h>
26#include <linux/interrupt.h>
27#include <linux/irq.h>
28#include <asm/irq_cpu.h>
29
30void plat_irq_dispatch(void)
31{
32 u32 cause;
33
34 cause = read_c0_cause() & read_c0_status() & CAUSEF_IP;
35
36 clear_c0_status(cause);
37
38 if (cause & CAUSEF_IP7)
39 do_IRQ(7);
40 if (cause & CAUSEF_IP2)
41 do_IRQ(2);
42 if (cause & CAUSEF_IP3)
43 do_IRQ(3);
44 if (cause & CAUSEF_IP4)
45 do_IRQ(4);
46 if (cause & CAUSEF_IP5)
47 do_IRQ(5);
48 if (cause & CAUSEF_IP6)
49 do_IRQ(6);
50}
51
52void __init arch_init_irq(void)
53{
54 mips_cpu_irq_init();
55}