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368dd5ac AT |
1 | /* ASB2364 initialisation |
2 | * | |
3 | * Copyright (C) 2002 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 License | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the License, 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 | #include <linux/delay.h> | |
17 | ||
18 | #include <asm/io.h> | |
19 | #include <asm/setup.h> | |
20 | #include <asm/processor.h> | |
21 | #include <asm/irq.h> | |
22 | #include <asm/intctl-regs.h> | |
23 | ||
24 | /* | |
25 | * initialise some of the unit hardware before gdbstub is set up | |
26 | */ | |
27 | asmlinkage void __init unit_init(void) | |
28 | { | |
29 | /* set up the external interrupts */ | |
30 | ||
31 | /* XIRQ[0]: NAND RXBY */ | |
32 | /* SET_XIRQ_TRIGGER(0, XIRQ_TRIGGER_LOWLEVEL); */ | |
33 | ||
34 | /* XIRQ[1]: LAN, UART, I2C, USB, PCI, FPGA */ | |
35 | SET_XIRQ_TRIGGER(1, XIRQ_TRIGGER_LOWLEVEL); | |
36 | ||
37 | /* XIRQ[2]: Extend Slot 1-9 */ | |
38 | /* SET_XIRQ_TRIGGER(2, XIRQ_TRIGGER_LOWLEVEL); */ | |
39 | ||
40 | #if defined(CONFIG_EXT_SERIAL_IRQ_LEVEL) && \ | |
41 | defined(CONFIG_ETHERNET_IRQ_LEVEL) && \ | |
42 | (CONFIG_EXT_SERIAL_IRQ_LEVEL != CONFIG_ETHERNET_IRQ_LEVEL) | |
43 | # error CONFIG_EXT_SERIAL_IRQ_LEVEL != CONFIG_ETHERNET_IRQ_LEVEL | |
44 | #endif | |
45 | ||
46 | #if defined(CONFIG_EXT_SERIAL_IRQ_LEVEL) | |
47 | set_intr_level(XIRQ1, NUM2GxICR_LEVEL(CONFIG_EXT_SERIAL_IRQ_LEVEL)); | |
48 | #elif defined(CONFIG_ETHERNET_IRQ_LEVEL) | |
49 | set_intr_level(XIRQ1, NUM2GxICR_LEVEL(CONFIG_ETHERNET_IRQ_LEVEL)); | |
50 | #endif | |
51 | } | |
52 | ||
53 | /* | |
54 | * initialise the rest of the unit hardware after gdbstub is ready | |
55 | */ | |
56 | asmlinkage void __init unit_setup(void) | |
57 | { | |
58 | ||
59 | } | |
60 | ||
61 | /* | |
62 | * initialise the external interrupts used by a unit of this type | |
63 | */ | |
64 | void __init unit_init_IRQ(void) | |
65 | { | |
66 | unsigned int extnum; | |
67 | ||
68 | for (extnum = 0 ; extnum < NR_XIRQS ; extnum++) { | |
69 | switch (GET_XIRQ_TRIGGER(extnum)) { | |
70 | /* LEVEL triggered interrupts should be made | |
71 | * post-ACK'able as they hold their lines until | |
72 | * serviced | |
73 | */ | |
74 | case XIRQ_TRIGGER_HILEVEL: | |
75 | case XIRQ_TRIGGER_LOWLEVEL: | |
76 | mn10300_set_lateack_irq_type(XIRQ2IRQ(extnum)); | |
77 | break; | |
78 | default: | |
79 | break; | |
80 | } | |
81 | } | |
82 | ||
83 | #define IRQCTL __SYSREG(0xd5000090, u32) | |
84 | IRQCTL |= 0x02; | |
85 | } |