blob: 84271d85a8dd42d158dea593c3c5525c78af4517 [file] [log] [blame]
Paul Mundt373e68b2006-09-27 15:41:24 +09001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * linux/arch/sh/boards/snapgear/setup.c
3 *
4 * Copyright (C) 2002 David McCullough <davidm@snapgear.com>
5 * Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org>
6 *
7 * Based on files with the following comments:
8 *
9 * Copyright (C) 2000 Kazumoto Kojima
10 *
11 * Modified for 7751 Solution Engine by
12 * Ian da Silva and Jeremy Siegel, 2001.
13 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070014#include <linux/init.h>
15#include <linux/irq.h>
16#include <linux/interrupt.h>
17#include <linux/timer.h>
18#include <linux/delay.h>
19#include <linux/module.h>
20#include <linux/sched.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#include <asm/machvec.h>
Paul Mundt373e68b2006-09-27 15:41:24 +090022#include <asm/snapgear.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#include <asm/irq.h>
24#include <asm/io.h>
Paul Mundt373e68b2006-09-27 15:41:24 +090025#include <asm/rtc.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070026#include <asm/cpu/timer.h>
27
Linus Torvalds1da177e2005-04-16 15:20:36 -070028extern void secureedge5410_rtc_init(void);
29extern void pcibios_init(void);
30
31/****************************************************************************/
32/*
33 * EraseConfig handling functions
34 */
35
Paul Mundt35f3c512006-10-06 15:31:16 +090036static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -070037{
38 volatile char dummy __attribute__((unused)) = * (volatile char *) 0xb8000000;
39
40 printk("SnapGear: erase switch interrupt!\n");
41
42 return IRQ_HANDLED;
43}
44
45static int __init eraseconfig_init(void)
46{
47 printk("SnapGear: EraseConfig init\n");
48 /* Setup "EraseConfig" switch on external IRQ 0 */
Thomas Gleixner6d208192006-07-01 19:29:25 -070049 if (request_irq(IRL0_IRQ, eraseconfig_interrupt, IRQF_DISABLED,
Linus Torvalds1da177e2005-04-16 15:20:36 -070050 "Erase Config", NULL))
51 printk("SnapGear: failed to register IRQ%d for Reset witch\n",
52 IRL0_IRQ);
53 else
54 printk("SnapGear: registered EraseConfig switch on IRQ%d\n",
55 IRL0_IRQ);
56 return(0);
57}
58
59module_init(eraseconfig_init);
60
61/****************************************************************************/
62/*
63 * Initialize IRQ setting
64 *
65 * IRL0 = erase switch
66 * IRL1 = eth0
67 * IRL2 = eth1
68 * IRL3 = crypto
69 */
70
Magnus Damm68abdbb2007-06-15 18:56:19 +090071static struct ipr_data ipr_irq_table[] = {
72 { IRL0_IRQ, 0, IRL0_IPR_POS, IRL0_PRIORITY },
73 { IRL1_IRQ, 0, IRL1_IPR_POS, IRL1_PRIORITY },
74 { IRL2_IRQ, 0, IRL2_IPR_POS, IRL2_PRIORITY },
75 { IRL3_IRQ, 0, IRL3_IPR_POS, IRL3_PRIORITY },
76};
77
78static unsigned long ipr_offsets[] = {
79 INTC_IPRD,
80};
81
82static struct ipr_desc ipr_irq_desc = {
83 .ipr_offsets = ipr_offsets,
84 .nr_offsets = ARRAY_SIZE(ipr_offsets),
85
86 .ipr_data = ipr_irq_table,
87 .nr_irqs = ARRAY_SIZE(ipr_irq_table),
88
89 .chip = {
90 .name = "IPR-snapgear",
91 },
Jamie Lenehanbd71ab82006-10-31 12:35:02 +090092};
93
Linus Torvalds1da177e2005-04-16 15:20:36 -070094static void __init init_snapgear_IRQ(void)
95{
96 /* enable individual interrupt mode for externals */
97 ctrl_outw(ctrl_inw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR);
98
99 printk("Setup SnapGear IRQ/IPR ...\n");
100
Magnus Damm68abdbb2007-06-15 18:56:19 +0900101 register_ipr_controller(&ipr_irq_desc);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102}
103
Paul Mundt2c7834a2006-09-27 18:17:31 +0900104/*
105 * Initialize the board
106 */
107static void __init snapgear_setup(char **cmdline_p)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108{
Paul Mundt2c7834a2006-09-27 18:17:31 +0900109 board_time_init = secureedge5410_rtc_init;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110}
111
112/*
113 * The Machine Vector
114 */
Paul Mundt82f81f42007-05-15 15:19:34 +0900115static struct sh_machine_vector mv_snapgear __initmv = {
Paul Mundt2c7834a2006-09-27 18:17:31 +0900116 .mv_name = "SnapGear SecureEdge5410",
117 .mv_setup = snapgear_setup,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 .mv_nr_irqs = 72,
119
120 .mv_inb = snapgear_inb,
121 .mv_inw = snapgear_inw,
122 .mv_inl = snapgear_inl,
123 .mv_outb = snapgear_outb,
124 .mv_outw = snapgear_outw,
125 .mv_outl = snapgear_outl,
126
127 .mv_inb_p = snapgear_inb_p,
128 .mv_inw_p = snapgear_inw,
129 .mv_inl_p = snapgear_inl,
130 .mv_outb_p = snapgear_outb_p,
131 .mv_outw_p = snapgear_outw,
132 .mv_outl_p = snapgear_outl,
133
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134 .mv_init_irq = init_snapgear_IRQ,
135};