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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-14 16:42:43 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-14 16:42:43 -0400
commit2cf4d4514d5b43c1f3b64bd0ec8b9853bde8f1dc (patch)
treee35a625496acc6ac852846d40b8851186b9d1ac4 /arch/arm/plat-stmp3xxx/irq.c
parent44b7532b8b464f606053562400719c9c21276037 (diff)
parentce53895a5d24e0ee19fb92f56c17323fb4c9ab27 (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (417 commits) MAINTAINERS: EB110ATX is not ebsa110 MAINTAINERS: update Eric Miao's email address and status fb: add support of LCD display controller on pxa168/910 (base layer) [ARM] 5552/1: ep93xx get_uart_rate(): use EP93XX_SYSCON_PWRCNT and EP93XX_SYSCON_PWRCN [ARM] pxa/sharpsl_pm: zaurus needs generic pxa suspend/resume routines [ARM] 5544/1: Trust PrimeCell resource sizes [ARM] pxa/sharpsl_pm: cleanup of gpio-related code. [ARM] pxa/sharpsl_pm: drop set_irq_type calls [ARM] pxa/sharpsl_pm: merge pxa-specific code into generic one [ARM] pxa/sharpsl_pm: merge the two sharpsl_pm.c since it's now pxa specific [ARM] sa1100: remove unused collie_pm.c [ARM] pxa: fix the conflicting non-static declarations of global_gpios[] [ARM] 5550/1: Add default configure file for w90p910 platform [ARM] 5549/1: Add clock api for w90p910 platform. [ARM] 5548/1: Add gpio api for w90p910 platform [ARM] 5551/1: Add multi-function pin api for w90p910 platform. [ARM] Make ARM_VIC_NR depend on ARM_VIC [ARM] 5546/1: ARM PL022 SSP/SPI driver v3 ARM: OMAP4: SMP: Update defconfig for OMAP4430 ARM: OMAP4: SMP: Enable SMP support for OMAP4430 ...
Diffstat (limited to 'arch/arm/plat-stmp3xxx/irq.c')
-rw-r--r--arch/arm/plat-stmp3xxx/irq.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm/plat-stmp3xxx/irq.c b/arch/arm/plat-stmp3xxx/irq.c
new file mode 100644
index 000000000000..20de4e0401ef
--- /dev/null
+++ b/arch/arm/plat-stmp3xxx/irq.c
@@ -0,0 +1,51 @@
1/*
2 * Freescale STMP37XX/STMP378X common interrupt handling code
3 *
4 * Author: Vladislav Buzov <vbuzov@embeddedalley.com>
5 *
6 * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
7 * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
8 */
9
10/*
11 * The code contained herein is licensed under the GNU General Public
12 * License. You may obtain a copy of the GNU General Public License
13 * Version 2 or later at the following locations:
14 *
15 * http://www.opensource.org/licenses/gpl-license.html
16 * http://www.gnu.org/copyleft/gpl.html
17 */
18#include <linux/init.h>
19#include <linux/interrupt.h>
20#include <linux/delay.h>
21#include <linux/irq.h>
22#include <linux/sysdev.h>
23
24#include <mach/stmp3xxx.h>
25#include <mach/platform.h>
26#include <mach/regs-icoll.h>
27
28void __init stmp3xxx_init_irq(struct irq_chip *chip)
29{
30 unsigned int i, lv;
31
32 /* Reset the interrupt controller */
33 stmp3xxx_reset_block(REGS_ICOLL_BASE + HW_ICOLL_CTRL, true);
34
35 /* Disable all interrupts initially */
36 for (i = 0; i < NR_REAL_IRQS; i++) {
37 chip->mask(i);
38 set_irq_chip(i, chip);
39 set_irq_handler(i, handle_level_irq);
40 set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
41 }
42
43 /* Ensure vector is cleared */
44 for (lv = 0; lv < 4; lv++)
45 __raw_writel(1 << lv, REGS_ICOLL_BASE + HW_ICOLL_LEVELACK);
46 __raw_writel(0, REGS_ICOLL_BASE + HW_ICOLL_VECTOR);
47
48 /* Barrier */
49 (void)__raw_readl(REGS_ICOLL_BASE + HW_ICOLL_STAT);
50}
51