4 files changed, 52 insertions, 91 deletions

diff --git a/arch/sh/boards/se/7722/irq.c b/arch/sh/boards/se/7722/irq.c
index 26cff0efda40..0b03f3f610b8 100644
--- a/arch/sh/boards/se/7722/irq.c
+++ b/arch/sh/boards/se/7722/irq.c
@@ -16,95 +16,61 @@
 #include <asm/io.h>
 #include <asm/se7722.h>
 
-#define INTC_INTMSK0             0xFFD00044
-#define INTC_INTMSKCLR0          0xFFD00064
-
-struct se7722_data {
-        unsigned char irq;
-        unsigned char ipr_idx;
-        unsigned char shift;
-        unsigned short priority;
-        unsigned long addr;
-};
-
-
 static void disable_se7722_irq(unsigned int irq)
 {
-        struct se7722_data *p = get_irq_chip_data(irq);
-        ctrl_outw( ctrl_inw( p->addr ) | p->priority , p->addr );
+        unsigned int bit = irq - SE7722_FPGA_IRQ_BASE;
+        ctrl_outw(ctrl_inw(IRQ01_MASK) | 1 << bit, IRQ01_MASK);
 }
 
 static void enable_se7722_irq(unsigned int irq)
 {
-        struct se7722_data *p = get_irq_chip_data(irq);
-        ctrl_outw( ctrl_inw( p->addr ) & ~p->priority , p->addr );
+        unsigned int bit = irq - SE7722_FPGA_IRQ_BASE;
+        ctrl_outw(ctrl_inw(IRQ01_MASK) & ~(1 << bit), IRQ01_MASK);
 }
 
 static struct irq_chip se7722_irq_chip __read_mostly = {
-        .name           = "SE7722",
+        .name           = "SE7722-FPGA",
         .mask           = disable_se7722_irq,
         .unmask         = enable_se7722_irq,
         .mask_ack       = disable_se7722_irq,
 };
 
-static struct se7722_data ipr_irq_table[] = {
-        /* irq        ,idx,sft, priority     , addr   */
-        { MRSHPC_IRQ0 , 0 , 0 , MRSHPC_BIT0 , IRQ01_MASK } ,
-        { MRSHPC_IRQ1 , 0 , 0 , MRSHPC_BIT1 , IRQ01_MASK } ,
-        { MRSHPC_IRQ2 , 0 , 0 , MRSHPC_BIT2 , IRQ01_MASK } ,
-        { MRSHPC_IRQ3 , 0 , 0 , MRSHPC_BIT3 , IRQ01_MASK } ,
-        { SMC_IRQ     , 0 , 0 , SMC_BIT     , IRQ01_MASK } ,
-        { EXT_IRQ     , 0 , 0 , EXT_BIT     , IRQ01_MASK } ,
-};
-
-int se7722_irq_demux(int irq)
+static void se7722_irq_demux(unsigned int irq, struct irq_desc *desc)
 {
+        unsigned short intv = ctrl_inw(IRQ01_STS);
+        struct irq_desc *ext_desc;
+        unsigned int ext_irq = SE7722_FPGA_IRQ_BASE;
+
+        intv &= (1 << SE7722_FPGA_IRQ_NR) - 1;
 
-        if ((irq == IRQ0_IRQ)||(irq == IRQ1_IRQ)) {
-                volatile unsigned short intv =
-                        *(volatile unsigned short *)IRQ01_STS;
-                if (irq == IRQ0_IRQ){
-                        if(intv & SMC_BIT ) {
-                                return SMC_IRQ;
-                        } else if(intv & USB_BIT) {
-                                return USB_IRQ;
-                        } else {
-                                printk("intv =%04x\n", intv);
-                                return SMC_IRQ;
-                        }
-                } else if(irq == IRQ1_IRQ){
-                        if(intv & MRSHPC_BIT0) {
-                                return MRSHPC_IRQ0;
-                        } else if(intv & MRSHPC_BIT1) {
-                                return MRSHPC_IRQ1;
-                        } else if(intv & MRSHPC_BIT2) {
-                                return MRSHPC_IRQ2;
-                        } else if(intv & MRSHPC_BIT3) {
-                                return MRSHPC_IRQ3;
-                        } else {
-                                printk("BIT_EXTENTION =%04x\n", intv);
-                                return EXT_IRQ;
-                        }
+        while (intv) {
+                if (intv & 1) {
+                        ext_desc = irq_desc + ext_irq;
+                        handle_level_irq(ext_irq, ext_desc);
                 }
+                intv >>= 1;
+                ext_irq++;
         }
-        return irq;
-
 }
+
 /*
  * Initialize IRQ setting
  */
 void __init init_se7722_IRQ(void)
 {
-        int i = 0;
+        int i;
+
+        ctrl_outw(0, IRQ01_MASK);       /* disable all irqs */
         ctrl_outw(0x2000, 0xb03fffec);  /* mrshpc irq enable */
-        ctrl_outl((3 << ((7 - 0) * 4))|(3 << ((7 - 1) * 4)), INTC_INTPRI0);     /* irq0 pri=3,irq1,pri=3 */
-        ctrl_outw((2 << ((7 - 0) * 2))|(2 << ((7 - 1) * 2)), INTC_ICR1);        /* irq0,1 low-level irq */
 
-        for (i = 0; i < ARRAY_SIZE(ipr_irq_table); i++) {
-                disable_irq_nosync(ipr_irq_table[i].irq);
-                set_irq_chip_and_handler_name( ipr_irq_table[i].irq, &se7722_irq_chip,
-                        handle_level_irq, "level");
-                set_irq_chip_data( ipr_irq_table[i].irq, &ipr_irq_table[i] );
-                disable_se7722_irq(ipr_irq_table[i].irq);
-        }
+        for (i = 0; i < SE7722_FPGA_IRQ_NR; i++)
+                set_irq_chip_and_handler_name(SE7722_FPGA_IRQ_BASE + i,
+                                              &se7722_irq_chip,
+                                              handle_level_irq, "level");
+
+        set_irq_chained_handler(IRQ0_IRQ, se7722_irq_demux);
+        set_irq_type(IRQ0_IRQ, IRQ_TYPE_LEVEL_LOW);
+
+        set_irq_chained_handler(IRQ1_IRQ, se7722_irq_demux);
+        set_irq_type(IRQ1_IRQ, IRQ_TYPE_LEVEL_LOW);
 }
diff --git a/arch/sh/boards/se/7722/setup.c b/arch/sh/boards/se/7722/setup.c
index 6cca6cbc8069..495fc7e2b60f 100644
--- a/arch/sh/boards/se/7722/setup.c
+++ b/arch/sh/boards/se/7722/setup.c
@@ -77,6 +77,7 @@ static struct resource cf_ide_resources[] = {
         },
         [2] = {
                 .start  = MRSHPC_IRQ0,
+                .end    = MRSHPC_IRQ0,
                 .flags  = IORESOURCE_IRQ,
         },
 };
@@ -140,8 +141,6 @@ static void __init se7722_setup(char **cmdline_p)
 static struct sh_machine_vector mv_se7722 __initmv = {
         .mv_name                = "Solution Engine 7722" ,
         .mv_setup               = se7722_setup ,
-        .mv_nr_irqs             = 109 ,
+        .mv_nr_irqs             = SE7722_FPGA_IRQ_BASE + SE7722_FPGA_IRQ_NR,
         .mv_init_irq            = init_se7722_IRQ,
-        .mv_irq_demux           = se7722_irq_demux,
-
 };
diff --git a/arch/sh/configs/se7722_defconfig b/arch/sh/configs/se7722_defconfig
index 122b67da73cf..8e6a6baf5d27 100644
--- a/arch/sh/configs/se7722_defconfig
+++ b/arch/sh/configs/se7722_defconfig
@@ -200,7 +200,7 @@ CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_SH_DSP=y
 CONFIG_SH_STORE_QUEUES=y
 CONFIG_CPU_HAS_INTEVT=y
-CONFIG_CPU_HAS_IPR_IRQ=y
+CONFIG_CPU_HAS_INTC_IRQ=y
 CONFIG_CPU_HAS_SR_RB=y
 CONFIG_CPU_HAS_PTEA=y
 
diff --git a/include/asm-sh/se7722.h b/include/asm-sh/se7722.h
index b3b31e4725c6..e0e89fcb8388 100644
--- a/include/asm-sh/se7722.h
+++ b/include/asm-sh/se7722.h
@@ -81,36 +81,32 @@
 /* IRQ */
 #define IRQ0_IRQ        32
 #define IRQ1_IRQ        33
-#define INTC_ICR0       0xA4140000UL
-#define INTC_ICR1       0xA414001CUL
-
-#define INTMSK0         0xa4140044
-#define INTMSKCLR0      0xa4140064
-#define INTC_INTPRI0    0xa4140010
 
 #define IRQ01_MODE      0xb1800000
 #define IRQ01_STS       0xb1800004
 #define IRQ01_MASK      0xb1800008
-#define EXT_BIT         (0x3fc0)        /* SH IRQ1 */
-#define MRSHPC_BIT0     (0x0004)        /* SH IRQ1 */
-#define MRSHPC_BIT1     (0x0008)        /* SH IRQ1 */
-#define MRSHPC_BIT2     (0x0010)        /* SH IRQ1 */
-#define MRSHPC_BIT3     (0x0020)        /* SH IRQ1 */
-#define SMC_BIT         (0x0002)        /* SH IRQ0 */
-#define USB_BIT         (0x0001)        /* SH IRQ0 */
-
-#define MRSHPC_IRQ3     11
-#define MRSHPC_IRQ2     12
-#define MRSHPC_IRQ1     13
-#define MRSHPC_IRQ0     14
-#define SMC_IRQ         10
-#define EXT_IRQ         5
-#define USB_IRQ         6
 
+/* Bits in IRQ01_* registers */
+
+#define SE7722_FPGA_IRQ_USB     0 /* IRQ0 */
+#define SE7722_FPGA_IRQ_SMC     1 /* IRQ0 */
+#define SE7722_FPGA_IRQ_MRSHPC0 2 /* IRQ1 */
+#define SE7722_FPGA_IRQ_MRSHPC1 3 /* IRQ1 */
+#define SE7722_FPGA_IRQ_MRSHPC2 4 /* IRQ1 */
+#define SE7722_FPGA_IRQ_MRSHPC3 5 /* IRQ1 */
+
+#define SE7722_FPGA_IRQ_NR      6
+#define SE7722_FPGA_IRQ_BASE    110
+
+#define MRSHPC_IRQ3     (SE7722_FPGA_IRQ_BASE + SE7722_FPGA_IRQ_MRSHPC3)
+#define MRSHPC_IRQ2     (SE7722_FPGA_IRQ_BASE + SE7722_FPGA_IRQ_MRSHPC2)
+#define MRSHPC_IRQ1     (SE7722_FPGA_IRQ_BASE + SE7722_FPGA_IRQ_MRSHPC1)
+#define MRSHPC_IRQ0     (SE7722_FPGA_IRQ_BASE + SE7722_FPGA_IRQ_MRSHPC0)
+#define SMC_IRQ         (SE7722_FPGA_IRQ_BASE + SE7722_FPGA_IRQ_SMC)
+#define USB_IRQ         (SE7722_FPGA_IRQ_BASE + SE7722_FPGA_IRQ_USB)
 
 /* arch/sh/boards/se/7722/irq.c */
 void init_se7722_IRQ(void);
-int se7722_irq_demux(int);
 
 #define __IO_PREFIX             se7722
 #include <asm/io_generic.h>