3 * Stefan Roese, DENX Software Engineering, sr@denx.de.
6 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
7 * Marius Groeger <mgroeger@sysgo.de>
10 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
11 * Alex Zuepke <azu@sysgo.de>
13 * SPDX-License-Identifier: GPL-2.0+
17 #include <asm/arch/ixp425.h>
18 #include <asm/proc-armv/ptrace.h>
22 void (*m_func)( void *data);
25 static struct _irq_handler IRQ_HANDLER[N_IRQS];
27 static void default_isr(void *data)
29 printf("default_isr(): called for IRQ %d, Interrupt Status=%x PR=%x\n",
30 (int)data, *IXP425_ICIP, *IXP425_ICIH);
33 static int next_irq(void)
35 return (((*IXP425_ICIH & 0x000000fc) >> 2) - 1);
38 void do_irq (struct pt_regs *pt_regs)
42 IRQ_HANDLER[irq].m_func(IRQ_HANDLER[irq].m_data);
45 void irq_install_handler (int irq, interrupt_handler_t handle_irq, void *data)
47 if (irq >= N_IRQS || !handle_irq)
50 IRQ_HANDLER[irq].m_data = data;
51 IRQ_HANDLER[irq].m_func = handle_irq;
54 int arch_interrupt_init (void)
58 /* install default interrupt handlers */
59 for (i = 0; i < N_IRQS; i++)
60 irq_install_handler(i, default_isr, (void *)i);
62 /* configure interrupts for IRQ mode */
63 *IXP425_ICLR = 0x00000000;