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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2007-05-06 15:58:29 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-05-06 15:58:29 -0400
commit5cd47155155a32e5b944ac9fc3f3dc578e429aa0 (patch)
treeea05bfdbae04eb5ffbafa2c58fc68897a3f541d6 /arch/arm/mach-ixp4xx/common.c
parent6f95416ebe81b3ad63884538555efb81cb05749f (diff)
parent28bd3a0dcce11bea6f99a351cc64053dff00196e (diff)
Merge branch 'ixp4xx' into devel
Conflicts: include/asm-arm/arch-ixp4xx/io.h
Diffstat (limited to 'arch/arm/mach-ixp4xx/common.c')
-rw-r--r--arch/arm/mach-ixp4xx/common.c29
1 files changed, 26 insertions, 3 deletions
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index 09edea9779e6..f5cae1e46b7e 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -105,6 +105,29 @@ static signed char irq2gpio[32] = {
105 7, 8, 9, 10, 11, 12, -1, -1, 105 7, 8, 9, 10, 11, 12, -1, -1,
106}; 106};
107 107
108int gpio_to_irq(int gpio)
109{
110 int irq;
111
112 for (irq = 0; irq < 32; irq++) {
113 if (irq2gpio[irq] == gpio)
114 return irq;
115 }
116 return -EINVAL;
117}
118EXPORT_SYMBOL(gpio_to_irq);
119
120int irq_to_gpio(int irq)
121{
122 int gpio = (irq < 32) ? irq2gpio[irq] : -EINVAL;
123
124 if (gpio == -1)
125 return -EINVAL;
126
127 return gpio;
128}
129EXPORT_SYMBOL(irq_to_gpio);
130
108static int ixp4xx_set_irq_type(unsigned int irq, unsigned int type) 131static int ixp4xx_set_irq_type(unsigned int irq, unsigned int type)
109{ 132{
110 int line = irq2gpio[irq]; 133 int line = irq2gpio[irq];
@@ -172,7 +195,7 @@ static int ixp4xx_set_irq_type(unsigned int irq, unsigned int type)
172 195
173static void ixp4xx_irq_mask(unsigned int irq) 196static void ixp4xx_irq_mask(unsigned int irq)
174{ 197{
175 if (cpu_is_ixp46x() && irq >= 32) 198 if ((cpu_is_ixp46x() || cpu_is_ixp43x()) && irq >= 32)
176 *IXP4XX_ICMR2 &= ~(1 << (irq - 32)); 199 *IXP4XX_ICMR2 &= ~(1 << (irq - 32));
177 else 200 else
178 *IXP4XX_ICMR &= ~(1 << irq); 201 *IXP4XX_ICMR &= ~(1 << irq);
@@ -195,7 +218,7 @@ static void ixp4xx_irq_unmask(unsigned int irq)
195 if (!(ixp4xx_irq_edge & (1 << irq))) 218 if (!(ixp4xx_irq_edge & (1 << irq)))
196 ixp4xx_irq_ack(irq); 219 ixp4xx_irq_ack(irq);
197 220
198 if (cpu_is_ixp46x() && irq >= 32) 221 if ((cpu_is_ixp46x() || cpu_is_ixp43x()) && irq >= 32)
199 *IXP4XX_ICMR2 |= (1 << (irq - 32)); 222 *IXP4XX_ICMR2 |= (1 << (irq - 32));
200 else 223 else
201 *IXP4XX_ICMR |= (1 << irq); 224 *IXP4XX_ICMR |= (1 << irq);
@@ -219,7 +242,7 @@ void __init ixp4xx_init_irq(void)
219 /* Disable all interrupt */ 242 /* Disable all interrupt */
220 *IXP4XX_ICMR = 0x0; 243 *IXP4XX_ICMR = 0x0;
221 244
222 if (cpu_is_ixp46x()) { 245 if (cpu_is_ixp46x() || cpu_is_ixp43x()) {
223 /* Route upper 32 sources to IRQ instead of FIQ */ 246 /* Route upper 32 sources to IRQ instead of FIQ */
224 *IXP4XX_ICLR2 = 0x00; 247 *IXP4XX_ICLR2 = 0x00;
225 248