MIPS: Alchemy: Stop IRQ name sharing

Eliminate the sharing of IRQ names among the differenct Alchemy
variants.  IRQ numbers need no longer be hidden behind a
CONFIG_SOC_AU1XXX symbol: step 1 in my quest to make the Alchemy
code less reliant on a hardcoded subtype.

This patch also renames the GPIO irq number constants. It's really
an interrupt line, NOT a GPIO number!

Code which relied on certain irq numbers to have the same name
across all supported cpu subtypes is changed to determine current
cpu subtype at runtime; in some places this isn't possible so
a "compat" symbol is used.

Run-tested on DB1200.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

5 files changed, 247 insertions, 183 deletions

diff --git a/arch/mips/alchemy/common/dbdma.c b/arch/mips/alchemy/common/dbdma.c
index f9201ca2295b..549b18f3c18b 100644
--- a/arch/mips/alchemy/common/dbdma.c
+++ b/arch/mips/alchemy/common/dbdma.c
@@ -30,6 +30,7 @@
  *
  */
 
+#include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
@@ -58,7 +59,6 @@ static DEFINE_SPINLOCK(au1xxx_dbdma_spin_lock);
 
 static dbdma_global_t *dbdma_gptr = (dbdma_global_t *)DDMA_GLOBAL_BASE;
 static int dbdma_initialized;
-static void au1xxx_dbdma_init(void);
 
 static dbdev_tab_t dbdev_tab[] = {
 #ifdef CONFIG_SOC_AU1550
@@ -250,8 +250,7 @@ u32 au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid,
 	 * which can't be done successfully during board set up.
 	 */
 	if (!dbdma_initialized)
-		au1xxx_dbdma_init();
-	dbdma_initialized = 1;
+		return 0;
 
 	stp = find_dbdev_id(srcid);
 	if (stp == NULL)
@@ -871,28 +870,6 @@ static irqreturn_t dbdma_interrupt(int irq, void *dev_id)
 	return IRQ_RETVAL(1);
 }
 
-static void au1xxx_dbdma_init(void)
-{
-	int irq_nr;
-
-	dbdma_gptr->ddma_config = 0;
-	dbdma_gptr->ddma_throttle = 0;
-	dbdma_gptr->ddma_inten = 0xffff;
-	au_sync();
-
-#if defined(CONFIG_SOC_AU1550)
-	irq_nr = AU1550_DDMA_INT;
-#elif defined(CONFIG_SOC_AU1200)
-	irq_nr = AU1200_DDMA_INT;
-#else
-	#error Unknown Au1x00 SOC
-#endif
-
-	if (request_irq(irq_nr, dbdma_interrupt, IRQF_DISABLED,
-			"Au1xxx dbdma", (void *)dbdma_gptr))
-		printk(KERN_ERR "Can't get 1550 dbdma irq");
-}
-
 void au1xxx_dbdma_dump(u32 chanid)
 {
 	chan_tab_t	 *ctp;
@@ -1041,4 +1018,38 @@ void au1xxx_dbdma_resume(void)
 	}
 }
 #endif	/* CONFIG_PM */
+
+static int __init au1xxx_dbdma_init(void)
+{
+	int irq_nr, ret;
+
+	dbdma_gptr->ddma_config = 0;
+	dbdma_gptr->ddma_throttle = 0;
+	dbdma_gptr->ddma_inten = 0xffff;
+	au_sync();
+
+	switch (alchemy_get_cputype()) {
+	case ALCHEMY_CPU_AU1550:
+		irq_nr = AU1550_DDMA_INT;
+		break;
+	case ALCHEMY_CPU_AU1200:
+		irq_nr = AU1200_DDMA_INT;
+		break;
+	default:
+		return -ENODEV;
+	}
+
+	ret = request_irq(irq_nr, dbdma_interrupt, IRQF_DISABLED,
+			"Au1xxx dbdma", (void *)dbdma_gptr);
+	if (ret)
+		printk(KERN_ERR "Cannot grab DBDMA interrupt!\n");
+	else {
+		dbdma_initialized = 1;
+		printk(KERN_INFO "Alchemy DBDMA initialized\n");
+	}
+
+	return ret;
+}
+subsys_initcall(au1xxx_dbdma_init);
+
 #endif /* defined(CONFIG_SOC_AU1550) || defined(CONFIG_SOC_AU1200) */
diff --git a/arch/mips/alchemy/common/dma.c b/arch/mips/alchemy/common/dma.c
index d6fbda232e6a..d5278877891d 100644
--- a/arch/mips/alchemy/common/dma.c
+++ b/arch/mips/alchemy/common/dma.c
@@ -29,6 +29,8 @@
  *  675 Mass Ave, Cambridge, MA 02139, USA.
  *
  */
+
+#include <linux/init.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
@@ -188,17 +190,14 @@ int request_au1000_dma(int dev_id, const char *dev_str,
 		dev = &dma_dev_table[dev_id];
 
 	if (irqhandler) {
-		chan->irq = AU1000_DMA_INT_BASE + i;
 		chan->irq_dev = irq_dev_id;
 		ret = request_irq(chan->irq, irqhandler, irqflags, dev_str,
 				  chan->irq_dev);
 		if (ret) {
-			chan->irq = 0;
 			chan->irq_dev = NULL;
 			return ret;
 		}
 	} else {
-		chan->irq = 0;
 		chan->irq_dev = NULL;
 	}
 
@@ -226,13 +225,40 @@ void free_au1000_dma(unsigned int dmanr)
 	}
 
 	disable_dma(dmanr);
-	if (chan->irq)
+	if (chan->irq_dev)
 		free_irq(chan->irq, chan->irq_dev);
 
-	chan->irq = 0;
 	chan->irq_dev = NULL;
 	chan->dev_id = -1;
 }
 EXPORT_SYMBOL(free_au1000_dma);
 
+static int __init au1000_dma_init(void)
+{
+        int base, i;
+
+        switch (alchemy_get_cputype()) {
+        case ALCHEMY_CPU_AU1000:
+                base = AU1000_DMA_INT_BASE;
+                break;
+        case ALCHEMY_CPU_AU1500:
+                base = AU1500_DMA_INT_BASE;
+                break;
+        case ALCHEMY_CPU_AU1100:
+                base = AU1100_DMA_INT_BASE;
+                break;
+        default:
+                goto out;
+        }
+
+        for (i = 0; i < NUM_AU1000_DMA_CHANNELS; i++)
+                au1000_dma_table[i].irq = base + i;
+
+        printk(KERN_INFO "Alchemy DMA initialized\n");
+
+out:
+        return 0;
+}
+arch_initcall(au1000_dma_init);
+
 #endif /* AU1000 AU1500 AU1100 */
diff --git a/arch/mips/alchemy/common/irq.c b/arch/mips/alchemy/common/irq.c
index 8b5f00b3ad4e..f5b148af8b8c 100644
--- a/arch/mips/alchemy/common/irq.c
+++ b/arch/mips/alchemy/common/irq.c
@@ -53,160 +53,160 @@ struct au1xxx_irqmap {
 	int im_request;		/* set 1 to get higher priority */
 } au1xxx_ic0_map[] __initdata = {
 #if defined(CONFIG_SOC_AU1000)
-	{ AU1000_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_UART1_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_UART2_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_UART3_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_SSI0_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_SSI1_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+1, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+2, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+3, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+4, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+5, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+6, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+7, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_TOY_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1 },
-	{ AU1000_IRDA_TX_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_IRDA_RX_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH, 1 },
+	{ AU1000_UART0_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_UART1_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_UART2_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_UART3_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_SSI0_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_SSI1_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_DMA_INT_BASE,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_DMA_INT_BASE+1,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_DMA_INT_BASE+2,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_DMA_INT_BASE+3,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_DMA_INT_BASE+4,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_DMA_INT_BASE+5,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_DMA_INT_BASE+6,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_DMA_INT_BASE+7,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_TOY_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1000_TOY_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1000_TOY_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1000_TOY_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1000_RTC_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1000_RTC_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1000_RTC_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1000_RTC_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 1 },
+	{ AU1000_IRDA_TX_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_IRDA_RX_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH,  1 },
 	{ AU1000_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_USB_HOST_INT, IRQ_TYPE_LEVEL_LOW, 0 },
-	{ AU1000_ACSYNC_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_MAC0_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_MAC1_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_AC97C_INT, IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1000_USB_HOST_INT,	  IRQ_TYPE_LEVEL_LOW,   0 },
+	{ AU1000_ACSYNC_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1000_MAC0_DMA_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_MAC1_DMA_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1000_AC97C_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
 
 #elif defined(CONFIG_SOC_AU1500)
 
-	{ AU1500_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_PCI_INTA, IRQ_TYPE_LEVEL_LOW, 0 },
-	{ AU1000_PCI_INTB, IRQ_TYPE_LEVEL_LOW, 0 },
-	{ AU1500_UART3_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_PCI_INTC, IRQ_TYPE_LEVEL_LOW, 0 },
-	{ AU1000_PCI_INTD, IRQ_TYPE_LEVEL_LOW, 0 },
-	{ AU1000_DMA_INT_BASE, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+1, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+2, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+3, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+4, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+5, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+6, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+7, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_TOY_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1 },
-	{ AU1000_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH, 1 },
-	{ AU1000_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_USB_HOST_INT, IRQ_TYPE_LEVEL_LOW, 0 },
-	{ AU1000_ACSYNC_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1500_MAC0_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1500_MAC1_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_AC97C_INT, IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1500_UART0_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1500_PCI_INTA,	  IRQ_TYPE_LEVEL_LOW,   0 },
+	{ AU1500_PCI_INTB,	  IRQ_TYPE_LEVEL_LOW,   0 },
+	{ AU1500_UART3_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1500_PCI_INTC,	  IRQ_TYPE_LEVEL_LOW,   0 },
+	{ AU1500_PCI_INTD,	  IRQ_TYPE_LEVEL_LOW,   0 },
+	{ AU1500_DMA_INT_BASE,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1500_DMA_INT_BASE+1,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1500_DMA_INT_BASE+2,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1500_DMA_INT_BASE+3,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1500_DMA_INT_BASE+4,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1500_DMA_INT_BASE+5,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1500_DMA_INT_BASE+6,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1500_DMA_INT_BASE+7,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1500_TOY_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1500_TOY_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1500_TOY_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1500_TOY_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1500_RTC_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1500_RTC_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1500_RTC_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1500_RTC_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 1 },
+	{ AU1500_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH,  1 },
+	{ AU1500_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1500_USB_HOST_INT,	  IRQ_TYPE_LEVEL_LOW,   0 },
+	{ AU1500_ACSYNC_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1500_MAC0_DMA_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1500_MAC1_DMA_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1500_AC97C_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
 
 #elif defined(CONFIG_SOC_AU1100)
 
-	{ AU1100_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1100_UART1_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1100_SD_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1100_UART3_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_SSI0_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_SSI1_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+1, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+2, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+3, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+4, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+5, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+6, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_DMA_INT_BASE+7, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_TOY_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1 },
-	{ AU1000_IRDA_TX_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_IRDA_RX_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH, 1 },
-	{ AU1000_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_USB_HOST_INT, IRQ_TYPE_LEVEL_LOW, 0 },
-	{ AU1000_ACSYNC_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1100_MAC0_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1100_LCD_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_AC97C_INT, IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1100_UART0_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_UART1_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_SD_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_UART3_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_SSI0_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_SSI1_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_DMA_INT_BASE,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_DMA_INT_BASE+1,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_DMA_INT_BASE+2,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_DMA_INT_BASE+3,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_DMA_INT_BASE+4,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_DMA_INT_BASE+5,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_DMA_INT_BASE+6,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_DMA_INT_BASE+7,  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_TOY_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1100_TOY_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1100_TOY_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1100_TOY_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1100_RTC_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1100_RTC_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1100_RTC_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1100_RTC_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 1 },
+	{ AU1100_IRDA_TX_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_IRDA_RX_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH,  1 },
+	{ AU1100_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1100_USB_HOST_INT,	  IRQ_TYPE_LEVEL_LOW,   0 },
+	{ AU1100_ACSYNC_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1100_MAC0_DMA_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_LCD_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1100_AC97C_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
 
 #elif defined(CONFIG_SOC_AU1550)
 
-	{ AU1550_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1550_PCI_INTA, IRQ_TYPE_LEVEL_LOW, 0 },
-	{ AU1550_PCI_INTB, IRQ_TYPE_LEVEL_LOW, 0 },
-	{ AU1550_DDMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1550_CRYPTO_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1550_PCI_INTC, IRQ_TYPE_LEVEL_LOW, 0 },
-	{ AU1550_PCI_INTD, IRQ_TYPE_LEVEL_LOW, 0 },
-	{ AU1550_PCI_RST_INT, IRQ_TYPE_LEVEL_LOW, 0 },
-	{ AU1550_UART1_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1550_UART3_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1550_PSC0_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1550_PSC1_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1550_PSC2_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1550_PSC3_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_TOY_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1 },
-	{ AU1550_NAND_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1550_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH, 1 },
+	{ AU1550_UART0_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1550_PCI_INTA,	  IRQ_TYPE_LEVEL_LOW,   0 },
+	{ AU1550_PCI_INTB,	  IRQ_TYPE_LEVEL_LOW,   0 },
+	{ AU1550_DDMA_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1550_CRYPTO_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1550_PCI_INTC,	  IRQ_TYPE_LEVEL_LOW,   0 },
+	{ AU1550_PCI_INTD,	  IRQ_TYPE_LEVEL_LOW,   0 },
+	{ AU1550_PCI_RST_INT,	  IRQ_TYPE_LEVEL_LOW,   0 },
+	{ AU1550_UART1_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1550_UART3_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1550_PSC0_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1550_PSC1_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1550_PSC2_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1550_PSC3_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1550_TOY_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1550_TOY_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1550_TOY_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1550_TOY_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1550_RTC_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1550_RTC_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1550_RTC_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1550_RTC_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 1 },
+	{ AU1550_NAND_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1550_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH,  1 },
 	{ AU1550_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1550_USB_HOST_INT, IRQ_TYPE_LEVEL_LOW, 0 },
-	{ AU1550_MAC0_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1550_MAC1_DMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
+	{ AU1550_USB_HOST_INT,	  IRQ_TYPE_LEVEL_LOW,   0 },
+	{ AU1550_MAC0_DMA_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1550_MAC1_DMA_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
 
 #elif defined(CONFIG_SOC_AU1200)
 
-	{ AU1200_UART0_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1200_SWT_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1200_SD_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1200_DDMA_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1200_MAE_BE_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1200_UART1_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1200_MAE_FE_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1200_PSC0_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1200_PSC1_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1200_AES_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1200_CAMERA_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1000_TOY_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1000_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING, 1 },
-	{ AU1200_NAND_INT, IRQ_TYPE_EDGE_RISING, 0 },
-	{ AU1200_USB_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1200_LCD_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
-	{ AU1200_MAE_BOTH_INT, IRQ_TYPE_LEVEL_HIGH, 0 },
+	{ AU1200_UART0_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1200_SWT_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1200_SD_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1200_DDMA_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1200_MAE_BE_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1200_UART1_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1200_MAE_FE_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1200_PSC0_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1200_PSC1_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1200_AES_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1200_CAMERA_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1200_TOY_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1200_TOY_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1200_TOY_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1200_TOY_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1200_RTC_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1200_RTC_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1200_RTC_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1200_RTC_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 1 },
+	{ AU1200_NAND_INT,	  IRQ_TYPE_EDGE_RISING, 0 },
+	{ AU1200_USB_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1200_LCD_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
+	{ AU1200_MAE_BOTH_INT,	  IRQ_TYPE_LEVEL_HIGH,  0 },
 
 #else
 #error "Error: Unknown Alchemy SOC"
@@ -316,7 +316,7 @@ static void au1x_ic1_unmask(unsigned int irq_nr)
  * nowhere in the current kernel sources is it disabled.	--mlau
  */
 #if defined(CONFIG_MIPS_PB1000)
-	if (irq_nr == AU1000_GPIO_15)
+	if (irq_nr == AU1000_GPIO15_INT)
 		au_writel(0x4000, PB1000_MDR); /* enable int */
 #endif
 	au_sync();
@@ -388,11 +388,13 @@ static void au1x_ic1_maskack(unsigned int irq_nr)
 
 static int au1x_ic1_setwake(unsigned int irq, unsigned int on)
 {
-	unsigned int bit = irq - AU1000_INTC1_INT_BASE;
+	int bit = irq - AU1000_INTC1_INT_BASE;
 	unsigned long wakemsk, flags;
 
-	/* only GPIO 0-7 can act as wakeup source: */
-	if ((irq < AU1000_GPIO_0) || (irq > AU1000_GPIO_7))
+	/* only GPIO 0-7 can act as wakeup source.  Fortunately these
+	 * are wired up identically on all supported variants.
+	 */
+	if ((bit < 0) || (bit > 7))
 		return -EINVAL;
 
 	local_irq_save(flags);
diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c
index 2b76a57c4947..5a9a4f9eba2e 100644
--- a/arch/mips/alchemy/common/platform.c
+++ b/arch/mips/alchemy/common/platform.c
@@ -73,8 +73,8 @@ static struct resource au1xxx_usb_ohci_resources[] = {
 		.flags		= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start		= AU1000_USB_HOST_INT,
-		.end		= AU1000_USB_HOST_INT,
+		.start		= FOR_PLATFORM_C_USB_HOST_INT,
+		.end		= FOR_PLATFORM_C_USB_HOST_INT,
 		.flags		= IORESOURCE_IRQ,
 	},
 };
@@ -132,8 +132,8 @@ static struct resource au1xxx_usb_ehci_resources[] = {
 		.flags		= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start		= AU1000_USB_HOST_INT,
-		.end		= AU1000_USB_HOST_INT,
+		.start		= AU1200_USB_INT,
+		.end		= AU1200_USB_INT,
 		.flags		= IORESOURCE_IRQ,
 	},
 };
diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c
index 379a664809b0..2aecb2fdf982 100644
--- a/arch/mips/alchemy/common/time.c
+++ b/arch/mips/alchemy/common/time.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008 Manuel Lauss <mano@roarinelk.homelinux.net>
+ * Copyright (C) 2008-2009 Manuel Lauss <manuel.lauss@gmail.com>
  *
  * Previous incarnations were:
  * Copyright (C) 2001, 2006, 2008 MontaVista Software, <source@mvista.com>
@@ -85,7 +85,6 @@ static struct clock_event_device au1x_rtcmatch2_clockdev = {
 	.name		= "rtcmatch2",
 	.features	= CLOCK_EVT_FEAT_ONESHOT,
 	.rating		= 100,
-	.irq		= AU1000_RTC_MATCH2_INT,
 	.set_next_event	= au1x_rtcmatch2_set_next_event,
 	.set_mode	= au1x_rtcmatch2_set_mode,
 	.cpumask	= cpu_all_mask,
@@ -98,11 +97,13 @@ static struct irqaction au1x_rtcmatch2_irqaction = {
 	.dev_id		= &au1x_rtcmatch2_clockdev,
 };
 
-void __init plat_time_init(void)
+static int __init alchemy_time_init(unsigned int m2int)
 {
 	struct clock_event_device *cd = &au1x_rtcmatch2_clockdev;
 	unsigned long t;
 
+	au1x_rtcmatch2_clockdev.irq = m2int;
+
 	/* Check if firmware (YAMON, ...) has enabled 32kHz and clock
 	 * has been detected.  If so install the rtcmatch2 clocksource,
 	 * otherwise don't bother.  Note that both bits being set is by
@@ -148,13 +149,18 @@ void __init plat_time_init(void)
 	cd->max_delta_ns = clockevent_delta2ns(0xffffffff, cd);
 	cd->min_delta_ns = clockevent_delta2ns(8, cd);	/* ~0.25ms */
 	clockevents_register_device(cd);
-	setup_irq(AU1000_RTC_MATCH2_INT, &au1x_rtcmatch2_irqaction);
+	setup_irq(m2int, &au1x_rtcmatch2_irqaction);
 
 	printk(KERN_INFO "Alchemy clocksource installed\n");
 
-	return;
+	return 0;
 
 cntr_err:
+	return -1;
+}
+
+static void __init alchemy_setup_c0timer(void)
+{
 	/*
 	 * MIPS kernel assigns 'au1k_wait' to 'cpu_wait' before this
 	 * function is called.  Because the Alchemy counters are unusable
@@ -166,3 +172,22 @@ cntr_err:
 	r4k_clockevent_init();
 	init_r4k_clocksource();
 }
+
+static int alchemy_m2inttab[] __initdata = {
+	AU1000_RTC_MATCH2_INT,
+	AU1500_RTC_MATCH2_INT,
+	AU1100_RTC_MATCH2_INT,
+	AU1550_RTC_MATCH2_INT,
+	AU1200_RTC_MATCH2_INT,
+};
+
+void __init plat_time_init(void)
+{
+	int t;
+
+	t = alchemy_get_cputype();
+	if (t == ALCHEMY_CPU_UNKNOWN)
+		alchemy_setup_c0timer();
+	else if (alchemy_time_init(alchemy_m2inttab[t]))
+		alchemy_setup_c0timer();
+}