1 /* ASB2303 initialisation
2  *
3  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4  * Written by David Howells (dhowells@redhat.com)
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public Licence
8  * as published by the Free Software Foundation; either version
9  * 2 of the Licence, or (at your option) any later version.
10  */
11 
12 #include <linux/kernel.h>
13 #include <linux/param.h>
14 #include <linux/init.h>
15 #include <linux/device.h>
16 
17 #include <asm/io.h>
18 #include <asm/setup.h>
19 #include <asm/processor.h>
20 #include <asm/irq.h>
21 #include <asm/intctl-regs.h>
22 
23 /*
24  * initialise some of the unit hardware before gdbstub is set up
25  */
unit_init(void)26 asmlinkage void __init unit_init(void)
27 {
28 	/* set up the external interrupts */
29 	SET_XIRQ_TRIGGER(0, XIRQ_TRIGGER_HILEVEL);
30 	SET_XIRQ_TRIGGER(2, XIRQ_TRIGGER_LOWLEVEL);
31 	SET_XIRQ_TRIGGER(3, XIRQ_TRIGGER_HILEVEL);
32 	SET_XIRQ_TRIGGER(4, XIRQ_TRIGGER_LOWLEVEL);
33 	SET_XIRQ_TRIGGER(5, XIRQ_TRIGGER_LOWLEVEL);
34 
35 #ifdef CONFIG_EXT_SERIAL_IRQ_LEVEL
36 	set_intr_level(XIRQ0, NUM2GxICR_LEVEL(CONFIG_EXT_SERIAL_IRQ_LEVEL));
37 #endif
38 
39 #ifdef CONFIG_ETHERNET_IRQ_LEVEL
40 	set_intr_level(XIRQ3, NUM2GxICR_LEVEL(CONFIG_ETHERNET_IRQ_LEVEL));
41 #endif
42 }
43 
44 /*
45  * initialise the rest of the unit hardware after gdbstub is ready
46  */
unit_setup(void)47 void __init unit_setup(void)
48 {
49 }
50 
51 /*
52  * initialise the external interrupts used by a unit of this type
53  */
unit_init_IRQ(void)54 void __init unit_init_IRQ(void)
55 {
56 	unsigned int extnum;
57 
58 	for (extnum = 0; extnum < NR_XIRQS; extnum++) {
59 		switch (GET_XIRQ_TRIGGER(extnum)) {
60 		case XIRQ_TRIGGER_HILEVEL:
61 		case XIRQ_TRIGGER_LOWLEVEL:
62 			mn10300_set_lateack_irq_type(XIRQ2IRQ(extnum));
63 			break;
64 		default:
65 			break;
66 		}
67 	}
68 }
69