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authorNobuhiro Iwamatsu <iwamatsu@nigarui.org>2011-01-06 22:02:14 -0500
committerPaul Mundt <lethal@linux-sh.org>2011-01-10 22:47:38 -0500
commit144cd59687fd69e806411391e1ab044473bb5f72 (patch)
tree1819c2617da35301e67ef1598d0f96c3082c0f19 /arch/sh
parent418f219c25bee9382db6e93b875df6a46c092198 (diff)
sh: intc - convert board specific landisk code
This converts the board specific interrupt code for landisk to make use of intc (use register_intc_controller). Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigarui.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh')
-rw-r--r--arch/sh/boards/mach-landisk/irq.c59
1 files changed, 35 insertions, 24 deletions
diff --git a/arch/sh/boards/mach-landisk/irq.c b/arch/sh/boards/mach-landisk/irq.c
index e79412a40490..c00ace38db3f 100644
--- a/arch/sh/boards/mach-landisk/irq.c
+++ b/arch/sh/boards/mach-landisk/irq.c
@@ -1,9 +1,10 @@
1/* 1/*
2 * arch/sh/boards/landisk/irq.c 2 * arch/sh/boards/mach-landisk/irq.c
3 * 3 *
4 * I-O DATA Device, Inc. LANDISK Support 4 * I-O DATA Device, Inc. LANDISK Support
5 * 5 *
6 * Copyright (C) 2005-2007 kogiidena 6 * Copyright (C) 2005-2007 kogiidena
7 * Copyright (C) 2011 Nobuhiro Iwamatsu
7 * 8 *
8 * Copyright (C) 2001 Ian da Silva, Jeremy Siegel 9 * Copyright (C) 2001 Ian da Silva, Jeremy Siegel
9 * Based largely on io_se.c. 10 * Based largely on io_se.c.
@@ -12,44 +13,54 @@
12 * License. See the file "COPYING" in the main directory of this archive 13 * License. See the file "COPYING" in the main directory of this archive
13 * for more details. 14 * for more details.
14 */ 15 */
16
15#include <linux/init.h> 17#include <linux/init.h>
16#include <linux/irq.h> 18#include <linux/irq.h>
17#include <linux/interrupt.h> 19#include <linux/interrupt.h>
18#include <linux/io.h> 20#include <linux/io.h>
19#include <mach-landisk/mach/iodata_landisk.h> 21#include <mach-landisk/mach/iodata_landisk.h>
20 22
21static void disable_landisk_irq(struct irq_data *data) 23enum {
22{ 24 UNUSED = 0,
23 unsigned char mask = 0xff ^ (0x01 << (data->irq - 5));
24 25
25 __raw_writeb(__raw_readb(PA_IMASK) & mask, PA_IMASK); 26 PCI_INTA, /* PCI int A */
26} 27 PCI_INTB, /* PCI int B */
27 28 PCI_INTC, /* PCI int C */
28static void enable_landisk_irq(struct irq_data *data) 29 PCI_INTD, /* PCI int D */
29{ 30 ATA, /* ATA */
30 unsigned char value = (0x01 << (data->irq - 5)); 31 FATA, /* CF */
32 POWER, /* Power swtich */
33 BUTTON, /* Button swtich */
34};
31 35
32 __raw_writeb(__raw_readb(PA_IMASK) | value, PA_IMASK); 36/* Vectors for LANDISK */
33} 37static struct intc_vect vectors_landisk[] __initdata = {
38 INTC_IRQ(PCI_INTA, IRQ_PCIINTA),
39 INTC_IRQ(PCI_INTB, IRQ_PCIINTB),
40 INTC_IRQ(PCI_INTC, IRQ_PCIINTC),
41 INTC_IRQ(PCI_INTD, IRQ_PCIINTD),
42 INTC_IRQ(ATA, IRQ_ATA),
43 INTC_IRQ(FATA, IRQ_FATA),
44 INTC_IRQ(POWER, IRQ_POWER),
45 INTC_IRQ(BUTTON, IRQ_BUTTON),
46};
34 47
35static struct irq_chip landisk_irq_chip __read_mostly = { 48/* IRLMSK mask register layout for LANDISK */
36 .name = "LANDISK", 49static struct intc_mask_reg mask_registers_landisk[] __initdata = {
37 .irq_mask = disable_landisk_irq, 50 { PA_IMASK, 0, 8, /* IRLMSK */
38 .irq_unmask = enable_landisk_irq, 51 { BUTTON, POWER, FATA, ATA,
52 PCI_INTD, PCI_INTC, PCI_INTB, PCI_INTA,
53 }
54 },
39}; 55};
40 56
57static DECLARE_INTC_DESC(intc_desc_landisk, "landisk", vectors_landisk, NULL,
58 mask_registers_landisk, NULL, NULL);
41/* 59/*
42 * Initialize IRQ setting 60 * Initialize IRQ setting
43 */ 61 */
44void __init init_landisk_IRQ(void) 62void __init init_landisk_IRQ(void)
45{ 63{
46 int i; 64 register_intc_controller(&intc_desc_landisk);
47
48 for (i = 5; i < 14; i++) {
49 disable_irq_nosync(i);
50 set_irq_chip_and_handler_name(i, &landisk_irq_chip,
51 handle_level_irq, "level");
52 enable_landisk_irq(irq_get_irq_data(i));
53 }
54 __raw_writeb(0x00, PA_PWRINT_CLR); 65 __raw_writeb(0x00, PA_PWRINT_CLR);
55} 66}