diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-10-09 21:33:03 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-10-09 21:33:03 +0100 |
| commit | b1add0480a95b6ceaece5caf6c50614771eae9b2 (patch) | |
| tree | 06f969f37bd0f51d9ebcccdb3e3ae983edaad889 /arch/arm/plat-mxc/irq.c | |
| parent | 3f30a09a612bac2b531a206c2a58a292dd7ff182 (diff) | |
| parent | 58a85f465fb16a918a869eba05addb8f78d9e064 (diff) | |
Merge branch 'for-rmk' of git://pasiphae.extern.pengutronix.de/git/imx/linux-2.6.git
Merge branch 'imx-devel' into devel
Diffstat (limited to 'arch/arm/plat-mxc/irq.c')
| -rw-r--r-- | arch/arm/plat-mxc/irq.c | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/arch/arm/plat-mxc/irq.c b/arch/arm/plat-mxc/irq.c index c6b837893d8..d862c9e5f8d 100644 --- a/arch/arm/plat-mxc/irq.c +++ b/arch/arm/plat-mxc/irq.c @@ -30,14 +30,7 @@ #define AVIC_INTENABLEL (AVIC_BASE + 0x14) /* int enable reg low */ #define AVIC_INTTYPEH (AVIC_BASE + 0x18) /* int type reg high */ #define AVIC_INTTYPEL (AVIC_BASE + 0x1C) /* int type reg low */ -#define AVIC_NIPRIORITY7 (AVIC_BASE + 0x20) /* norm int priority lvl7 */ -#define AVIC_NIPRIORITY6 (AVIC_BASE + 0x24) /* norm int priority lvl6 */ -#define AVIC_NIPRIORITY5 (AVIC_BASE + 0x28) /* norm int priority lvl5 */ -#define AVIC_NIPRIORITY4 (AVIC_BASE + 0x2C) /* norm int priority lvl4 */ -#define AVIC_NIPRIORITY3 (AVIC_BASE + 0x30) /* norm int priority lvl3 */ -#define AVIC_NIPRIORITY2 (AVIC_BASE + 0x34) /* norm int priority lvl2 */ -#define AVIC_NIPRIORITY1 (AVIC_BASE + 0x38) /* norm int priority lvl1 */ -#define AVIC_NIPRIORITY0 (AVIC_BASE + 0x3C) /* norm int priority lvl0 */ +#define AVIC_NIPRIORITY(x) (AVIC_BASE + (0x20 + 4 * (7 - (x)))) /* int priority */ #define AVIC_NIVECSR (AVIC_BASE + 0x40) /* norm int vector/status */ #define AVIC_FIVECSR (AVIC_BASE + 0x44) /* fast int vector/status */ #define AVIC_INTSRCH (AVIC_BASE + 0x48) /* int source reg high */ @@ -54,6 +47,24 @@ #define IIM_PROD_REV_SH 3 #define IIM_PROD_REV_LEN 5 +#ifdef CONFIG_MXC_IRQ_PRIOR +void imx_irq_set_priority(unsigned char irq, unsigned char prio) +{ + unsigned int temp; + unsigned int mask = 0x0F << irq % 8 * 4; + + if (irq > 63) + return; + + temp = __raw_readl(AVIC_NIPRIORITY(irq / 8)); + temp &= ~mask; + temp |= prio & mask; + + __raw_writel(temp, AVIC_NIPRIORITY(irq / 8)); +} +EXPORT_SYMBOL(imx_irq_set_priority); +#endif + /* Disable interrupt number "irq" in the AVIC */ static void mxc_mask_irq(unsigned int irq) { @@ -101,10 +112,9 @@ void __init mxc_init_irq(void) set_irq_flags(i, IRQF_VALID); } - /* Set WDOG2's interrupt the highest priority level (bit 28-31) */ - reg = __raw_readl(AVIC_NIPRIORITY6); - reg |= (0xF << 28); - __raw_writel(reg, AVIC_NIPRIORITY6); + /* Set default priority value (0) for all IRQ's */ + for (i = 0; i < 8; i++) + __raw_writel(0, AVIC_NIPRIORITY(i)); /* init architectures chained interrupt handler */ mxc_register_gpios(); |