1 /* ASB2305 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 #include <linux/kernel.h>
12 #include <linux/param.h>
13 #include <linux/init.h>
14 #include <linux/pci.h>
15 #include <asm/io.h>
16 #include <asm/setup.h>
17 #include <asm/processor.h>
18 #include <asm/intctl-regs.h>
19 #include <asm/serial-regs.h>
20 #include <unit/serial.h>
21 
22 /*
23  * initialise some of the unit hardware before gdbstub is set up
24  */
unit_init(void)25 asmlinkage void __init unit_init(void)
26 {
27 #ifndef CONFIG_GDBSTUB_ON_TTYSx
28 	/* set the 16550 interrupt line to level 3 if not being used for GDB */
29 #ifdef CONFIG_EXT_SERIAL_IRQ_LEVEL
30 	set_intr_level(XIRQ0, NUM2GxICR_LEVEL(CONFIG_EXT_SERIAL_IRQ_LEVEL));
31 #endif
32 #endif /* CONFIG_GDBSTUB_ON_TTYSx */
33 }
34 
35 /*
36  * initialise the rest of the unit hardware after gdbstub is ready
37  */
unit_setup(void)38 void __init unit_setup(void)
39 {
40 #ifdef CONFIG_PCI
41 	unit_pci_init();
42 #endif
43 }
44 
45 /*
46  * initialise the external interrupts used by a unit of this type
47  */
unit_init_IRQ(void)48 void __init unit_init_IRQ(void)
49 {
50 	unsigned int extnum;
51 
52 	for (extnum = 0; extnum < NR_XIRQS; extnum++) {
53 		switch (GET_XIRQ_TRIGGER(extnum)) {
54 		case XIRQ_TRIGGER_HILEVEL:
55 		case XIRQ_TRIGGER_LOWLEVEL:
56 			mn10300_set_lateack_irq_type(XIRQ2IRQ(extnum));
57 			break;
58 		default:
59 			break;
60 		}
61 	}
62 }
63