[PATCH][PPC32] PPC4xx PIC rewrite/cleanup
From: Matt Porter
Date: Tue Nov 23 2004 - 11:19:05 EST
Patch from Eugene to do some cleanup of the PPC4xx PIC code.
Separates the interrupts that can have polarity/triggering
modified for platform modification if necessary. Between
the two of us, it's tested on most of the affected platforms.
Signed-off-by: Eugene Surovegin <ebs@xxxxxxxxxxx>
Signed-off-by: Matt Porter <mporter@xxxxxxxxxxxxxxxxxxx>
diff -Nru a/arch/ppc/platforms/4xx/ebony.c b/arch/ppc/platforms/4xx/ebony.c
--- a/arch/ppc/platforms/4xx/ebony.c 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/platforms/4xx/ebony.c 2004-11-10 23:39:19 -08:00
@@ -55,73 +55,22 @@
static struct ibm44x_clocks clocks __initdata;
/*
- * Ebony IRQ triggering/polarity settings
+ * Ebony external IRQ triggering/polarity settings
*/
-static u_char ebony_IRQ_initsenses[] __initdata = {
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 0: UART 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 1: UART 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 2: IIC 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 3: IIC 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 4: PCI Inb Mess */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 5: PCI Cmd Wrt */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 6: PCI PM */
- (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* 7: PCI MSI 0 */
- (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* 8: PCI MSI 1 */
- (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* 9: PCI MSI 2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 10: MAL TX EOB */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 11: MAL RX EOB */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 12: DMA Chan 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 13: DMA Chan 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 14: DMA Chan 2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 15: DMA Chan 3 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 16: Reserved */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 17: Reserved */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 18: GPT Timer 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 19: GPT Timer 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 20: GPT Timer 2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 21: GPT Timer 3 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 22: GPT Timer 4 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 23: Ext Int 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 24: Ext Int 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 25: Ext Int 2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 26: Ext Int 3 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 27: Ext Int 4 */
- (IRQ_SENSE_EDGE | IRQ_POLARITY_NEGATIVE), /* 28: Ext Int 5 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 29: Ext Int 6 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 30: UIC1 NC Int */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 31: UIC1 Crit Int */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 32: MAL SERR */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 33: MAL TXDE */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 34: MAL RXDE */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 35: ECC Unc Err */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 36: ECC Corr Err */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 37: Ext Bus Ctrl */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 38: Ext Bus Mstr */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 39: OPB->PLB */
- (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* 40: PCI MSI 3 */
- (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* 41: PCI MSI 4 */
- (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* 42: PCI MSI 5 */
- (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* 43: PCI MSI 6 */
- (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* 44: PCI MSI 7 */
- (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* 45: PCI MSI 8 */
- (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* 46: PCI MSI 9 */
- (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* 47: PCI MSI 10 */
- (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* 48: PCI MSI 11 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 49: PLB Perf Mon */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 50: Ext Int 7 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 51: Ext Int 8 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 52: Ext Int 9 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 53: Ext Int 10 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 54: Ext Int 11 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 55: Ext Int 12 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 56: Ser ROM Err */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 57: Reserved */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 58: Reserved */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 59: PCI Async Err */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 60: EMAC 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 61: EMAC 0 WOL */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 62: EMAC 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 63: EMAC 1 WOL */
+unsigned char ppc4xx_uic_ext_irq_cfg[] __initdata = {
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ0: PCI slot 0 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ1: PCI slot 1 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ2: PCI slot 2 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ3: PCI slot 3 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ4: IRDA */
+ (IRQ_SENSE_EDGE | IRQ_POLARITY_NEGATIVE), /* IRQ5: SMI pushbutton */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ6: PHYs */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ7: AUX */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ8: EXT */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ9: EXT */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ10: EXT */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* IRQ11: EXT */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* IRQ12: EXT */
};
static void __init
@@ -357,9 +306,6 @@
#endif
ebony_early_serial_map();
-
- ibm4xxPIC_InitSenses = ebony_IRQ_initsenses;
- ibm4xxPIC_NumInitSenses = sizeof(ebony_IRQ_initsenses);
/* Identify the system */
printk("IBM Ebony port (MontaVista Software, Inc. (source@xxxxxxxxxx))\n");
diff -Nru a/arch/ppc/platforms/4xx/ibm405ep.c b/arch/ppc/platforms/4xx/ibm405ep.c
--- a/arch/ppc/platforms/4xx/ibm405ep.c 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/platforms/4xx/ibm405ep.c 2004-11-10 23:39:19 -08:00
@@ -21,6 +21,7 @@
#include <asm/ibm4xx.h>
#include <asm/ocp.h>
+#include <asm/ppc4xx_pic.h>
#include <platforms/4xx/ibm405ep.h>
@@ -130,5 +131,13 @@
.show = &ocp_show_emac_data
},
{ .vendor = OCP_VENDOR_INVALID
+ }
+};
+
+/* Polarity and triggering settings for internal interrupt sources */
+struct ppc4xx_uic_settings ppc4xx_core_uic_cfg[] __initdata = {
+ { .polarity = 0xffff7f80,
+ .triggering = 0x00000000,
+ .ext_irq_mask = 0x0000007f, /* IRQ0 - IRQ6 */
}
};
diff -Nru a/arch/ppc/platforms/4xx/ibm405gp.c b/arch/ppc/platforms/4xx/ibm405gp.c
--- a/arch/ppc/platforms/4xx/ibm405gp.c 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/platforms/4xx/ibm405gp.c 2004-11-10 23:39:19 -08:00
@@ -22,6 +22,7 @@
#include <platforms/4xx/ibm405gp.h>
#include <asm/ibm4xx.h>
#include <asm/ocp.h>
+#include <asm/ppc4xx_pic.h>
static struct ocp_func_emac_data ibm405gp_emac0_def = {
.rgmii_idx = -1, /* No RGMII */
@@ -107,5 +108,13 @@
.show = &ocp_show_emac_data,
},
{ .vendor = OCP_VENDOR_INVALID
+ }
+};
+
+/* Polarity and triggering settings for internal interrupt sources */
+struct ppc4xx_uic_settings ppc4xx_core_uic_cfg[] __initdata = {
+ { .polarity = 0xffffff80,
+ .triggering = 0x10000000,
+ .ext_irq_mask = 0x0000007f, /* IRQ0 - IRQ6 */
}
};
diff -Nru a/arch/ppc/platforms/4xx/ibm405gpr.c b/arch/ppc/platforms/4xx/ibm405gpr.c
--- a/arch/ppc/platforms/4xx/ibm405gpr.c 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/platforms/4xx/ibm405gpr.c 2004-11-10 23:39:19 -08:00
@@ -18,6 +18,7 @@
#include <platforms/4xx/ibm405gpr.h>
#include <asm/ibm4xx.h>
#include <asm/ocp.h>
+#include <asm/ppc4xx_pic.h>
static struct ocp_func_emac_data ibm405gpr_emac0_def = {
.rgmii_idx = -1, /* No RGMII */
@@ -104,5 +105,13 @@
.show = &ocp_show_emac_data,
},
{ .vendor = OCP_VENDOR_INVALID
+ }
+};
+
+/* Polarity and triggering settings for internal interrupt sources */
+struct ppc4xx_uic_settings ppc4xx_core_uic_cfg[] __initdata = {
+ { .polarity = 0xffffe000,
+ .triggering = 0x10000000,
+ .ext_irq_mask = 0x00001fff, /* IRQ7 - IRQ12, IRQ0 - IRQ6 */
}
};
diff -Nru a/arch/ppc/platforms/4xx/ibm440gp.c b/arch/ppc/platforms/4xx/ibm440gp.c
--- a/arch/ppc/platforms/4xx/ibm440gp.c 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/platforms/4xx/ibm440gp.c 2004-11-10 23:39:19 -08:00
@@ -19,6 +19,7 @@
#include <linux/module.h>
#include <platforms/4xx/ibm440gp.h>
#include <asm/ocp.h>
+#include <asm/ppc4xx_pic.h>
static struct ocp_func_emac_data ibm440gp_emac0_def = {
.rgmii_idx = -1, /* No RGMII */
@@ -148,4 +149,16 @@
},
{ .vendor = OCP_VENDOR_INVALID
}
+};
+
+/* Polarity and triggering settings for internal interrupt sources */
+struct ppc4xx_uic_settings ppc4xx_core_uic_cfg[] __initdata = {
+ { .polarity = 0xfffffe03,
+ .triggering = 0x01c00000,
+ .ext_irq_mask = 0x000001fc, /* IRQ0 - IRQ6 */
+ },
+ { .polarity = 0xffffc0ff,
+ .triggering = 0x00ff8000,
+ .ext_irq_mask = 0x00003f00, /* IRQ7 - IRQ12 */
+ },
};
diff -Nru a/arch/ppc/platforms/4xx/ibm440gx.c b/arch/ppc/platforms/4xx/ibm440gx.c
--- a/arch/ppc/platforms/4xx/ibm440gx.c 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/platforms/4xx/ibm440gx.c 2004-11-10 23:39:19 -08:00
@@ -19,6 +19,7 @@
#include <linux/module.h>
#include <platforms/4xx/ibm440gx.h>
#include <asm/ocp.h>
+#include <asm/ppc4xx_pic.h>
static struct ocp_func_emac_data ibm440gx_emac0_def = {
.rgmii_idx = -1, /* No RGMII */
@@ -214,4 +215,20 @@
},
{ .vendor = OCP_VENDOR_INVALID
}
+};
+
+/* Polarity and triggering settings for internal interrupt sources */
+struct ppc4xx_uic_settings ppc4xx_core_uic_cfg[] __initdata = {
+ { .polarity = 0xfffffe03,
+ .triggering = 0x01c00000,
+ .ext_irq_mask = 0x000001fc, /* IRQ0 - IRQ6 */
+ },
+ { .polarity = 0xffffc0ff,
+ .triggering = 0x00ff8000,
+ .ext_irq_mask = 0x00003f00, /* IRQ7 - IRQ12 */
+ },
+ { .polarity = 0xffff83ff,
+ .triggering = 0x000f83c0,
+ .ext_irq_mask = 0x00007c00, /* IRQ13 - IRQ17 */
+ },
};
diff -Nru a/arch/ppc/platforms/4xx/ibmnp405h.h b/arch/ppc/platforms/4xx/ibmnp405h.h
--- a/arch/ppc/platforms/4xx/ibmnp405h.h 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/platforms/4xx/ibmnp405h.h 2004-11-10 23:39:19 -08:00
@@ -132,8 +132,7 @@
#define DCRN_UIC1_BASE 0x0D0
#define DCRN_CPC0_EPRCSR 0x0F3
-#define UIC0_UIC1NC 30 /* UIC1 non-critical interrupt */
-#define UIC0_UIC1CR 31 /* UIC1 critical interrupt */
+#define UIC0_UIC1NC 0x00000002
#define CHR1_CETE 0x00000004 /* CPU external timer enable */
#define UIC0 DCRN_UIC0_BASE
@@ -141,7 +140,6 @@
#undef NR_UICS
#define NR_UICS 2
-#define UIC_CASCADE_MASK 0x0003 /* bits 30 & 31 */
/* EMAC DCRN's FIXME: armin */
#define DCRN_MALRXCTP2R(base) ((base) + 0x42) /* Channel Rx 2 Channel Table Pointer */
diff -Nru a/arch/ppc/platforms/4xx/ibmstbx25.c b/arch/ppc/platforms/4xx/ibmstbx25.c
--- a/arch/ppc/platforms/4xx/ibmstbx25.c 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/platforms/4xx/ibmstbx25.c 2004-11-10 23:39:19 -08:00
@@ -12,6 +12,7 @@
#include <linux/init.h>
#include <asm/ocp.h>
#include <platforms/4xx/ibmstbx25.h>
+#include <asm/ppc4xx_pic.h>
static struct ocp_func_iic_data ibmstbx25_iic0_def = {
.fast_mode = 0, /* Use standad mode (100Khz) */
@@ -55,5 +56,13 @@
.pm = IBM_CPM_GPIO0,
},
{ .vendor = OCP_VENDOR_INVALID
+ }
+};
+
+/* Polarity and triggering settings for internal interrupt sources */
+struct ppc4xx_uic_settings ppc4xx_core_uic_cfg[] __initdata = {
+ { .polarity = 0xffff8f80,
+ .triggering = 0x00000000,
+ .ext_irq_mask = 0x0000707f, /* IRQ7 - IRQ9, IRQ0 - IRQ6 */
}
};
diff -Nru a/arch/ppc/platforms/4xx/oak.c b/arch/ppc/platforms/4xx/oak.c
--- a/arch/ppc/platforms/4xx/oak.c 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/platforms/4xx/oak.c 2004-11-10 23:39:19 -08:00
@@ -101,8 +101,8 @@
ppc_md.setup_arch = oak_setup_arch;
ppc_md.show_percpuinfo = oak_show_percpuinfo;
ppc_md.irq_canonicalize = NULL;
- ppc_md.init_IRQ = oak_init_IRQ;
- ppc_md.get_irq = oak_get_irq;
+ ppc_md.init_IRQ = ppc4xx_pic_init;
+ ppc_md.get_irq = NULL; /* Set in ppc4xx_pic_init() */
ppc_md.init = NULL;
ppc_md.restart = oak_restart;
@@ -153,32 +153,6 @@
bp->bi_busfreq / 1000000);
return 0;
-}
-
-/*
- * Document me.
- */
-void __init
-oak_init_IRQ(void)
-{
- int i;
-
- ppc4xx_pic_init();
-
- for (i = 0; i < NR_IRQS; i++) {
- irq_desc[i].handler = ppc4xx_pic;
- }
-
- return;
-}
-
-/*
- * Document me.
- */
-int
-oak_get_irq(struct pt_regs *regs)
-{
- return (ppc4xx_pic_get_irq(regs));
}
/*
diff -Nru a/arch/ppc/platforms/4xx/ocotea.c b/arch/ppc/platforms/4xx/ocotea.c
--- a/arch/ppc/platforms/4xx/ocotea.c 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/platforms/4xx/ocotea.c 2004-11-10 23:39:19 -08:00
@@ -347,12 +347,6 @@
ibm440gx_get_clocks(&clocks, 33333333, 6 * 1843200);
ocp_sys_info.opb_bus_freq = clocks.opb;
- /* XXX Fix L2C IRQ triggerring setting (edge-sensitive).
- * Firmware (at least PIBS v1.72 OCT/28/2003) sets it incorrectly
- * --ebs
- */
- mtdcr(DCRN_UIC_TR(UIC2), mfdcr(DCRN_UIC_TR(UIC2)) | 0x00000100);
-
ibm44x_platform_init();
ppc_md.setup_arch = ocotea_setup_arch;
diff -Nru a/arch/ppc/platforms/4xx/redwood6.c b/arch/ppc/platforms/4xx/redwood6.c
--- a/arch/ppc/platforms/4xx/redwood6.c 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/platforms/4xx/redwood6.c 2004-11-10 23:39:19 -08:00
@@ -19,44 +19,20 @@
#include <linux/delay.h>
#include <asm/machdep.h>
-
/*
- * Define all of the IRQ senses and polarities.
+ * Define external IRQ senses and polarities.
*/
-
-static u_char redwood6_IRQ_initsenses[] __initdata = {
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 0: RTC/FPC */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 1: Transport */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 2: Audio Dec */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 3: Video Dec */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 4: DMA Chan 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 5: DMA Chan 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 6: DMA Chan 2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 7: DMA Chan 3 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 8: SmartCard 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 9: IIC0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 10: IRR */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 11: Cap Timers */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 12: Cmp Timers */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 13: Serial Port */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 14: Soft Modem */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 15: Down Ctrs */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 16: SmartCard 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 17: Ext Int 7 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 18: Ext Int 8 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 19: Ext Int 9 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 20: Serial 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 21: Serial 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 22: Serial 2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 23: XPT_DMA */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 24: DCR timeout */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 25: Ext Int 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 26: Ext Int 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 27: Ext Int 2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 28: Ext Int 3 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 29: Ext Int 4 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 30: Ext Int 5 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 31: Ext Int 6 */
+unsigned char ppc4xx_uic_ext_irq_cfg[] __initdata = {
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 7 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 8 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 9 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 0 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 1 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 2 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 3 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 4 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 5 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 6 */
};
static struct resource smc91x_resources[] = {
@@ -144,8 +120,6 @@
printk("\n");
#endif
- ibm4xxPIC_InitSenses = redwood6_IRQ_initsenses;
- ibm4xxPIC_NumInitSenses = sizeof(redwood6_IRQ_initsenses);
/* Identify the system */
printk(KERN_INFO "IBM Redwood6 (STBx25XX) Platform\n");
diff -Nru a/arch/ppc/platforms/4xx/sycamore.c b/arch/ppc/platforms/4xx/sycamore.c
--- a/arch/ppc/platforms/4xx/sycamore.c 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/platforms/4xx/sycamore.c 2004-11-10 23:39:19 -08:00
@@ -44,42 +44,22 @@
void *sycamore_rtc_base;
/*
- * Define all of the IRQ senses and polarities.
+ * Define external IRQ senses and polarities.
*/
-
-static u_char Sycamore_IRQ_initsenses[] __initdata = {
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 0: Uart 0*/
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 1: Uart 1*/
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 2: IIC */
- (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE), /* 3: External Master */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 4: PCI ext cmd write*/
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 5: DMA Chan 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 6: DMA Chan 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 7: DMA Chan 2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 8: DMA Chan 3 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 9: Ethernet wakeup (WOL)*/
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 10: Mal (SEER) */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 11: Mal TXEOB */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 12: Mal RXEOB */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 13: Mal TXDE*/
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 14: Mal RXDE*/
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 15: Ethernet */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 16: Ext PCI SERR */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 17: ECC */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE), /* 18: PCI PM*/
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 19: Ext Int 7 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 20: Ext Int 8 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 21: Ext Int 9 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 22: Ext Int 10 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 23: Ext Int 11 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 24: Ext Int 12 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 25: Ext Int 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 26: Ext Int 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 27: Ext Int 2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 28: Ext Int 3 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 29: Ext Int 4 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 30: Ext Int 5 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* 31: Ext Int 6 */
+unsigned char ppc4xx_uic_ext_irq_cfg[] __initdata = {
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 7 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 8 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 9 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 10 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 11 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 12 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 0 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 1 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 2 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 3 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 4 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 5 */
+ (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* Ext Int 6 */
};
@@ -158,8 +138,6 @@
sycamore_rtc_base = (void *) SYCAMORE_RTC_VADDR;
TODC_INIT(TODC_TYPE_DS1743, sycamore_rtc_base, sycamore_rtc_base,
sycamore_rtc_base, 8);
- ibm4xxPIC_InitSenses = Sycamore_IRQ_initsenses;
- ibm4xxPIC_NumInitSenses = sizeof(Sycamore_IRQ_initsenses);
/* Identify the system */
printk(KERN_INFO "IBM Sycamore (IBM405GPr) Platform\n");
diff -Nru a/arch/ppc/syslib/Makefile b/arch/ppc/syslib/Makefile
--- a/arch/ppc/syslib/Makefile 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/syslib/Makefile 2004-11-10 23:39:19 -08:00
@@ -17,7 +17,11 @@
ifeq ($(CONFIG_VIRTEX_II_PRO),y)
obj-$(CONFIG_40x) += xilinx_pic.o
else
+ifeq ($(CONFIG_403),y)
+obj-$(CONFIG_40x) += ppc403_pic.o
+else
obj-$(CONFIG_40x) += ppc4xx_pic.o
+endif
endif
obj-$(CONFIG_44x) += ppc4xx_pic.o
obj-$(CONFIG_40x) += ppc4xx_setup.o
diff -Nru a/arch/ppc/syslib/ibm44x_common.c b/arch/ppc/syslib/ibm44x_common.c
--- a/arch/ppc/syslib/ibm44x_common.c 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/syslib/ibm44x_common.c 2004-11-10 23:39:19 -08:00
@@ -142,19 +142,9 @@
return mem_size;
}
-static void __init ibm44x_init_irq(void)
-{
- int i;
-
- ppc4xx_pic_init();
-
- for (i = 0; i < NR_IRQS; i++)
- irq_desc[i].handler = ppc4xx_pic;
-}
-
void __init ibm44x_platform_init(void)
{
- ppc_md.init_IRQ = ibm44x_init_irq;
+ ppc_md.init_IRQ = ppc4xx_pic_init;
ppc_md.find_end_of_memory = ibm44x_find_end_of_memory;
ppc_md.restart = ibm44x_restart;
ppc_md.power_off = ibm44x_power_off;
diff -Nru a/arch/ppc/syslib/ppc403_pic.c b/arch/ppc/syslib/ppc403_pic.c
--- /dev/null Wed Dec 31 16:00:00 196900
+++ b/arch/ppc/syslib/ppc403_pic.c 2004-11-10 23:39:19 -08:00
@@ -0,0 +1,127 @@
+/*
+ *
+ * Copyright (c) 1999 Grant Erickson <grant@xxxxxxxxxxxx>
+ *
+ * Module name: ppc403_pic.c
+ *
+ * Description:
+ * Interrupt controller driver for PowerPC 403-based processors.
+ */
+
+/*
+ * The PowerPC 403 cores' Asynchronous Interrupt Controller (AIC) has
+ * 32 possible interrupts, a majority of which are not implemented on
+ * all cores. There are six configurable, external interrupt pins and
+ * there are eight internal interrupts for the on-chip serial port
+ * (SPU), DMA controller, and JTAG controller.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/stddef.h>
+
+#include <asm/processor.h>
+#include <asm/system.h>
+#include <asm/irq.h>
+#include <asm/ppc4xx_pic.h>
+
+/* Function Prototypes */
+
+static void ppc403_aic_enable(unsigned int irq);
+static void ppc403_aic_disable(unsigned int irq);
+static void ppc403_aic_disable_and_ack(unsigned int irq);
+
+static struct hw_interrupt_type ppc403_aic = {
+ "403GC AIC",
+ NULL,
+ NULL,
+ ppc403_aic_enable,
+ ppc403_aic_disable,
+ ppc403_aic_disable_and_ack,
+ 0
+};
+
+int
+ppc403_pic_get_irq(struct pt_regs *regs)
+{
+ int irq;
+ unsigned long bits;
+
+ /*
+ * Only report the status of those interrupts that are actually
+ * enabled.
+ */
+
+ bits = mfdcr(DCRN_EXISR) & mfdcr(DCRN_EXIER);
+
+ /*
+ * Walk through the interrupts from highest priority to lowest, and
+ * report the first pending interrupt found.
+ * We want PPC, not C bit numbering, so just subtract the ffs()
+ * result from 32.
+ */
+ irq = 32 - ffs(bits);
+
+ if (irq == NR_AIC_IRQS)
+ irq = -1;
+
+ return (irq);
+}
+
+static void
+ppc403_aic_enable(unsigned int irq)
+{
+ int bit, word;
+
+ bit = irq & 0x1f;
+ word = irq >> 5;
+
+ ppc_cached_irq_mask[word] |= (1 << (31 - bit));
+ mtdcr(DCRN_EXIER, ppc_cached_irq_mask[word]);
+}
+
+static void
+ppc403_aic_disable(unsigned int irq)
+{
+ int bit, word;
+
+ bit = irq & 0x1f;
+ word = irq >> 5;
+
+ ppc_cached_irq_mask[word] &= ~(1 << (31 - bit));
+ mtdcr(DCRN_EXIER, ppc_cached_irq_mask[word]);
+}
+
+static void
+ppc403_aic_disable_and_ack(unsigned int irq)
+{
+ int bit, word;
+
+ bit = irq & 0x1f;
+ word = irq >> 5;
+
+ ppc_cached_irq_mask[word] &= ~(1 << (31 - bit));
+ mtdcr(DCRN_EXIER, ppc_cached_irq_mask[word]);
+ mtdcr(DCRN_EXISR, (1 << (31 - bit)));
+}
+
+void __init
+ppc4xx_pic_init(void)
+{
+ int i;
+
+ /*
+ * Disable all external interrupts until they are
+ * explicity requested.
+ */
+ ppc_cached_irq_mask[0] = 0;
+
+ mtdcr(DCRN_EXIER, ppc_cached_irq_mask[0]);
+
+ ppc_md.get_irq = ppc403_pic_get_irq;
+
+ for (i = 0; i < NR_IRQS; i++)
+ irq_desc[i].handler = &ppc403_aic;
+}
diff -Nru a/arch/ppc/syslib/ppc4xx_pic.c b/arch/ppc/syslib/ppc4xx_pic.c
--- a/arch/ppc/syslib/ppc4xx_pic.c 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/syslib/ppc4xx_pic.c 2004-11-10 23:39:19 -08:00
@@ -1,31 +1,21 @@
/*
+ * arch/ppc/syslib/ppc4xx_pic.c
*
- * Copyright (c) 1999 Grant Erickson <grant@xxxxxxxxxxxx>
- *
- * Module name: ppc4xx_pic.c
- *
- * Description:
- * Interrupt controller driver for PowerPC 4xx-based processors.
- */
-
-/*
- * The PowerPC 403 cores' Asynchronous Interrupt Controller (AIC) has
- * 32 possible interrupts, a majority of which are not implemented on
- * all cores. There are six configurable, external interrupt pins and
- * there are eight internal interrupts for the on-chip serial port
- * (SPU), DMA controller, and JTAG controller.
+ * Interrupt controller driver for PowerPC 4xx-based processors.
*
- * The PowerPC 405/440 cores' Universal Interrupt Controller (UIC) has
- * 32 possible interrupts as well. Depending on the core and SoC
- * implementation, a portion of the interrrupts are used for on-chip
- * peripherals and a portion of the interrupts are available to be
- * configured for external devices generating interrupts.
+ * Eugene Surovegin <eugene.surovegin@xxxxxxxxxx> or <ebs@xxxxxxxxxxx>
+ * Copyright (c) 2004 Zultys Technologies
*
- * The PowerNP and 440GP (and most likely future implementations) have
- * cascaded UICs.
+ * Based on original code by
+ * Copyright (c) 1999 Grant Erickson <grant@xxxxxxxxxxxx>
+ * Armin Custer <akuster@xxxxxxxxxx>
*
- */
-
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+*/
+#include <linux/config.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/signal.h>
@@ -36,493 +26,212 @@
#include <asm/irq.h>
#include <asm/ppc4xx_pic.h>
-/* Global Variables */
-struct hw_interrupt_type *ppc4xx_pic;
-/*
- * We define 4xxIRQ_InitSenses table thusly:
- * bit 0x1: sense, 1 for edge and 0 for level.
- * bit 0x2: polarity, 0 for negative, 1 for positive.
+/* See comment in include/arch-ppc/ppc4xx_pic.h
+ * for more info about these two variables
*/
-unsigned int ibm4xxPIC_NumInitSenses __initdata = 0;
-unsigned char *ibm4xxPIC_InitSenses __initdata = NULL;
-
-/* Six of one, half dozen of the other....#ifdefs, separate files,
- * other tricks.....
- *
- * There are basically two types of interrupt controllers, the 403 AIC
- * and the "others" with UIC. I just kept them both here separated
- * with #ifdefs, but it seems to change depending upon how supporting
- * files (like ppc4xx.h) change. -- Dan.
- */
-
-#ifdef CONFIG_403
-
-/* Function Prototypes */
-
-static void ppc403_aic_enable(unsigned int irq);
-static void ppc403_aic_disable(unsigned int irq);
-static void ppc403_aic_disable_and_ack(unsigned int irq);
-
-static struct hw_interrupt_type ppc403_aic = {
- "403GC AIC",
- NULL,
- NULL,
- ppc403_aic_enable,
- ppc403_aic_disable,
- ppc403_aic_disable_and_ack,
- 0
-};
+extern struct ppc4xx_uic_settings ppc4xx_core_uic_cfg[NR_UICS] __attribute__((weak));
+extern unsigned char ppc4xx_uic_ext_irq_cfg[] __attribute__((weak));
-int
-ppc403_pic_get_irq(struct pt_regs *regs)
-{
- int irq;
- unsigned long bits;
-
- /*
- * Only report the status of those interrupts that are actually
- * enabled.
- */
-
- bits = mfdcr(DCRN_EXISR) & mfdcr(DCRN_EXIER);
-
- /*
- * Walk through the interrupts from highest priority to lowest, and
- * report the first pending interrupt found.
- * We want PPC, not C bit numbering, so just subtract the ffs()
- * result from 32.
- */
- irq = 32 - ffs(bits);
-
- if (irq == NR_AIC_IRQS)
- irq = -1;
-
- return (irq);
+#define IRQ_MASK_UIC0(irq) (1 << (31 - (irq)))
+#define IRQ_MASK_UICx(irq) (1 << (31 - ((irq) & 0x1f)))
+#define IRQ_MASK_UIC1(irq) IRQ_MASK_UICx(irq)
+#define IRQ_MASK_UIC2(irq) IRQ_MASK_UICx(irq)
+
+#define UIC_HANDLERS(n) \
+static void ppc4xx_uic##n##_enable(unsigned int irq) \
+{ \
+ ppc_cached_irq_mask[n] |= IRQ_MASK_UIC##n(irq); \
+ mtdcr(DCRN_UIC_ER(UIC##n), ppc_cached_irq_mask[n]); \
+} \
+ \
+static void ppc4xx_uic##n##_disable(unsigned int irq) \
+{ \
+ ppc_cached_irq_mask[n] &= ~IRQ_MASK_UIC##n(irq); \
+ mtdcr(DCRN_UIC_ER(UIC##n), ppc_cached_irq_mask[n]); \
+} \
+ \
+static void ppc4xx_uic##n##_ack(unsigned int irq) \
+{ \
+ u32 mask = IRQ_MASK_UIC##n(irq); \
+ ppc_cached_irq_mask[n] &= ~mask; \
+ mtdcr(DCRN_UIC_ER(UIC##n), ppc_cached_irq_mask[n]); \
+ mtdcr(DCRN_UIC_SR(UIC##n), mask); \
+ ACK_UIC##n##_PARENT \
+} \
+ \
+static void ppc4xx_uic##n##_end(unsigned int irq) \
+{ \
+ unsigned int status = irq_desc[irq].status; \
+ u32 mask = IRQ_MASK_UIC##n(irq); \
+ if (status & IRQ_LEVEL){ \
+ mtdcr(DCRN_UIC_SR(UIC##n), mask); \
+ ACK_UIC##n##_PARENT \
+ } \
+ if (!(status & (IRQ_DISABLED | IRQ_INPROGRESS))){ \
+ ppc_cached_irq_mask[n] |= mask; \
+ mtdcr(DCRN_UIC_ER(UIC##n), ppc_cached_irq_mask[n]); \
+ } \
+}
+
+#define DECLARE_UIC(n) \
+{ \
+ .typename = "UIC"#n, \
+ .enable = ppc4xx_uic##n##_enable, \
+ .disable = ppc4xx_uic##n##_disable, \
+ .ack = ppc4xx_uic##n##_ack, \
+ .end = ppc4xx_uic##n##_end, \
+} \
+
+#if NR_UICS == 3
+#define ACK_UIC0_PARENT mtdcr(DCRN_UIC_SR(UICB), UICB_UIC0NC);
+#define ACK_UIC1_PARENT mtdcr(DCRN_UIC_SR(UICB), UICB_UIC1NC);
+#define ACK_UIC2_PARENT mtdcr(DCRN_UIC_SR(UICB), UICB_UIC2NC);
+UIC_HANDLERS(0); UIC_HANDLERS(1); UIC_HANDLERS(2);
+
+static int ppc4xx_pic_get_irq(struct pt_regs *regs)
+{
+ u32 uicb = mfdcr(DCRN_UIC_MSR(UICB));
+ if (uicb & UICB_UIC0NC)
+ return 32 - ffs(mfdcr(DCRN_UIC_MSR(UIC0)));
+ else if (uicb & UICB_UIC1NC)
+ return 64 - ffs(mfdcr(DCRN_UIC_MSR(UIC1)));
+ else if (uicb & UICB_UIC2NC)
+ return 96 - ffs(mfdcr(DCRN_UIC_MSR(UIC2)));
+ else
+ return -1;
}
-static void
-ppc403_aic_enable(unsigned int irq)
+static void __init ppc4xx_pic_impl_init(void)
{
- int bit, word;
-
- bit = irq & 0x1f;
- word = irq >> 5;
-
- ppc_cached_irq_mask[word] |= (1 << (31 - bit));
- mtdcr(DCRN_EXIER, ppc_cached_irq_mask[word]);
+ /* Configure Base UIC */
+ mtdcr(DCRN_UIC_CR(UICB), 0);
+ mtdcr(DCRN_UIC_TR(UICB), 0);
+ mtdcr(DCRN_UIC_PR(UICB), 0xffffffff);
+ mtdcr(DCRN_UIC_SR(UICB), 0xffffffff);
+ mtdcr(DCRN_UIC_ER(UICB), UICB_UIC0NC | UICB_UIC1NC | UICB_UIC2NC);
}
-static void
-ppc403_aic_disable(unsigned int irq)
-{
- int bit, word;
-
- bit = irq & 0x1f;
- word = irq >> 5;
-
- ppc_cached_irq_mask[word] &= ~(1 << (31 - bit));
- mtdcr(DCRN_EXIER, ppc_cached_irq_mask[word]);
-}
+#elif NR_UICS == 2
+#define ACK_UIC0_PARENT
+#define ACK_UIC1_PARENT mtdcr(DCRN_UIC_SR(UIC0), UIC0_UIC1NC);
+UIC_HANDLERS(0); UIC_HANDLERS(1);
-static void
-ppc403_aic_disable_and_ack(unsigned int irq)
+static int ppc4xx_pic_get_irq(struct pt_regs *regs)
{
- int bit, word;
-
- bit = irq & 0x1f;
- word = irq >> 5;
-
- ppc_cached_irq_mask[word] &= ~(1 << (31 - bit));
- mtdcr(DCRN_EXIER, ppc_cached_irq_mask[word]);
- mtdcr(DCRN_EXISR, (1 << (31 - bit)));
+ u32 uic0 = mfdcr(DCRN_UIC_MSR(UIC0));
+ if (uic0 & UIC0_UIC1NC)
+ return 64 - ffs(mfdcr(DCRN_UIC_MSR(UIC1)));
+ else
+ return uic0 ? 32 - ffs(uic0) : -1;
}
-#else
-
-#ifndef UIC1
-#define UIC1 UIC0
-#endif
-#ifndef UIC2
-#define UIC2 UIC1
-#endif
-
-static void
-ppc4xx_uic_enable(unsigned int irq)
+static void __init ppc4xx_pic_impl_init(void)
{
- int bit, word;
- irq_desc_t *desc = irq_desc + irq;
-
- bit = irq & 0x1f;
- word = irq >> 5;
-
-#ifdef UIC_DEBUG
- printk("ppc4xx_uic_enable - irq %d word %d bit 0x%x\n", irq, word, bit);
-#endif
- ppc_cached_irq_mask[word] |= 1 << (31 - bit);
- switch (word) {
- case 0:
- mtdcr(DCRN_UIC_ER(UIC0), ppc_cached_irq_mask[word]);
- if ((mfdcr(DCRN_UIC_TR(UIC0)) & (1 << (31 - bit))) == 0)
- desc->status |= IRQ_LEVEL;
- else
- desc->status = desc->status & ~IRQ_LEVEL;
- break;
- case 1:
- mtdcr(DCRN_UIC_ER(UIC1), ppc_cached_irq_mask[word]);
- if ((mfdcr(DCRN_UIC_TR(UIC1)) & (1 << (31 - bit))) == 0)
- desc->status |= IRQ_LEVEL;
- else
- desc->status = desc->status & ~IRQ_LEVEL;
- break;
- case 2:
- mtdcr(DCRN_UIC_ER(UIC2), ppc_cached_irq_mask[word]);
- if ((mfdcr(DCRN_UIC_TR(UIC2)) & (1 << (31 - bit))) == 0)
- desc->status |= IRQ_LEVEL;
- else
- desc->status = desc->status & ~IRQ_LEVEL;
- break;
- }
-
+ /* Enable cascade interrupt in UIC0 */
+ ppc_cached_irq_mask[0] |= UIC0_UIC1NC;
+ mtdcr(DCRN_UIC_SR(UIC0), UIC0_UIC1NC);
+ mtdcr(DCRN_UIC_ER(UIC0), ppc_cached_irq_mask[0]);
}
-static void
-ppc4xx_uic_disable(unsigned int irq)
-{
- int bit, word;
+#elif NR_UICS == 1
+#define ACK_UIC0_PARENT
+UIC_HANDLERS(0);
- bit = irq & 0x1f;
- word = irq >> 5;
-#ifdef UIC_DEBUG
- printk("ppc4xx_uic_disable - irq %d word %d bit 0x%x\n", irq, word,
- bit);
-#endif
- ppc_cached_irq_mask[word] &= ~(1 << (31 - bit));
- switch (word) {
- case 0:
- mtdcr(DCRN_UIC_ER(UIC0), ppc_cached_irq_mask[word]);
- break;
- case 1:
- mtdcr(DCRN_UIC_ER(UIC1), ppc_cached_irq_mask[word]);
- break;
- case 2:
- mtdcr(DCRN_UIC_ER(UIC2), ppc_cached_irq_mask[word]);
- break;
- }
-}
-
-static void
-ppc4xx_uic_disable_and_ack(unsigned int irq)
+static int ppc4xx_pic_get_irq(struct pt_regs *regs)
{
- int bit, word;
-
- bit = irq & 0x1f;
- word = irq >> 5;
-
-#ifdef UIC_DEBUG
- printk("ppc4xx_uic_disable_and_ack - irq %d word %d bit 0x%x\n", irq,
- word, bit);
-#endif
- ppc_cached_irq_mask[word] &= ~(1 << (31 - bit));
- switch (word) {
- case 0:
- mtdcr(DCRN_UIC_ER(UIC0), ppc_cached_irq_mask[word]);
- mtdcr(DCRN_UIC_SR(UIC0), (1 << (31 - bit)));
-#if (NR_UICS > 2)
- mtdcr(DCRN_UIC_SR(UICB), UICB_UIC0NC);
-#endif
- break;
- case 1:
- mtdcr(DCRN_UIC_ER(UIC1), ppc_cached_irq_mask[word]);
- mtdcr(DCRN_UIC_SR(UIC1), (1 << (31 - bit)));
-#if (NR_UICS == 2)
- mtdcr(DCRN_UIC_SR(UIC0), (1 << (31 - UIC0_UIC1NC)));
-#endif
-#if (NR_UICS > 2)
- mtdcr(DCRN_UIC_SR(UICB), UICB_UIC1NC);
-#endif
- break;
- case 2:
- mtdcr(DCRN_UIC_ER(UIC2), ppc_cached_irq_mask[word]);
- mtdcr(DCRN_UIC_SR(UIC2), (1 << (31 - bit)));
-#if (NR_UICS > 2)
- mtdcr(DCRN_UIC_SR(UICB), UICB_UIC2NC);
-#endif
- break;
- }
-
+ u32 uic0 = mfdcr(DCRN_UIC_MSR(UIC0));
+ return uic0 ? 32 - ffs(uic0) : -1;
}
-static void
-ppc4xx_uic_end(unsigned int irq)
-{
- int bit, word;
- unsigned int tr_bits = 0;
-
- bit = irq & 0x1f;
- word = irq >> 5;
-
-#ifdef UIC_DEBUG
- printk("ppc4xx_uic_end - irq %d word %d bit 0x%x\n", irq, word, bit);
+static inline void ppc4xx_pic_impl_init(void){}
#endif
- switch (word) {
- case 0:
- tr_bits = mfdcr(DCRN_UIC_TR(UIC0));
- break;
- case 1:
- tr_bits = mfdcr(DCRN_UIC_TR(UIC1));
- break;
- case 2:
- tr_bits = mfdcr(DCRN_UIC_TR(UIC2));
- break;
- }
-
- if ((tr_bits & (1 << (31 - bit))) == 0) {
- /* level trigger */
- switch (word) {
- case 0:
- mtdcr(DCRN_UIC_SR(UIC0), 1 << (31 - bit));
-#if (NR_UICS > 2)
- mtdcr(DCRN_UIC_SR(UICB), UICB_UIC0NC);
-#endif
- break;
- case 1:
- mtdcr(DCRN_UIC_SR(UIC1), 1 << (31 - bit));
-#if (NR_UICS == 2)
- mtdcr(DCRN_UIC_SR(UIC0), (1 << (31 - UIC0_UIC1NC)));
-#endif
-#if (NR_UICS > 2)
- mtdcr(DCRN_UIC_SR(UICB), UICB_UIC1NC);
-#endif
- break;
- case 2:
- mtdcr(DCRN_UIC_SR(UIC2), 1 << (31 - bit));
-#if (NR_UICS > 2)
- mtdcr(DCRN_UIC_SR(UICB), UICB_UIC2NC);
+static struct ppc4xx_uic_impl {
+ struct hw_interrupt_type decl;
+ int base; /* Base DCR number */
+} __uic[] = {
+ { .decl = DECLARE_UIC(0), .base = UIC0 },
+#if NR_UICS > 1
+ { .decl = DECLARE_UIC(1), .base = UIC1 },
+#if NR_UICS > 2
+ { .decl = DECLARE_UIC(2), .base = UIC2 },
#endif
- break;
- }
- }
-
- if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
- ppc_cached_irq_mask[word] |= 1 << (31 - bit);
- switch (word) {
- case 0:
- mtdcr(DCRN_UIC_ER(UIC0), ppc_cached_irq_mask[word]);
- break;
- case 1:
- mtdcr(DCRN_UIC_ER(UIC1), ppc_cached_irq_mask[word]);
- break;
- case 2:
- mtdcr(DCRN_UIC_ER(UIC2), ppc_cached_irq_mask[word]);
- break;
- }
- }
-}
-
-static struct hw_interrupt_type ppc4xx_uic = {
-#if (NR_UICS == 1)
- "IBM UIC",
-#else
- "IBM UIC Cascade",
#endif
- NULL,
- NULL,
- ppc4xx_uic_enable,
- ppc4xx_uic_disable,
- ppc4xx_uic_disable_and_ack,
- ppc4xx_uic_end,
- 0
};
-int
-ppc4xx_pic_get_irq(struct pt_regs *regs)
+static inline int is_level_sensitive(int irq)
{
- int irq, cas_irq;
- unsigned long bits;
- cas_irq = 0;
- /*
- * Only report the status of those interrupts that are actually
- * enabled.
- */
-
-#if (NR_UICS > 2)
- bits = mfdcr(DCRN_UIC_MSR(UICB));
-#else
- bits = mfdcr(DCRN_UIC_MSR(UIC0));
-#endif
-#if (NR_UICS > 2)
- if (bits & UICB_UIC0NC) {
- bits = mfdcr(DCRN_UIC_MSR(UIC0));
- irq = 32 - ffs(bits);
- } else if (bits & UICB_UIC1NC) {
- bits = mfdcr(DCRN_UIC_MSR(UIC1));
- irq = 64 - ffs(bits);
- } else if (bits & UICB_UIC2NC) {
- bits = mfdcr(DCRN_UIC_MSR(UIC2));
- irq = 96 - ffs(bits);
- } else {
- irq = -1;
- }
-#elif (NR_UICS > 1)
- if (bits & UIC_CASCADE_MASK) {
- bits = mfdcr(DCRN_UIC_MSR(UIC1));
- cas_irq = 32 - ffs(bits);
- irq = 32 + cas_irq;
- } else {
- irq = 32 - ffs(bits);
- if (irq == 32)
- irq = -1;
- }
-#else
- /*
- * Walk through the interrupts from highest priority to lowest, and
- * report the first pending interrupt found.
- * We want PPC, not C bit numbering, so just subtract the ffs()
- * result from 32.
- */
- irq = 32 - ffs(bits);
-#endif
- if (irq == (NR_UIC_IRQS * NR_UICS))
- irq = -1;
-
-#ifdef UIC_DEBUG
- printk("ppc4xx_pic_get_irq - irq %d bit 0x%x\n", irq, bits);
-#endif
-
- return (irq);
+ u32 tr = mfdcr(DCRN_UIC_TR(__uic[irq >> 5].base));
+ return (tr & IRQ_MASK_UICx(irq)) == 0;
}
-#endif
-void __init
-ppc4xx_extpic_init(void)
+void __init ppc4xx_pic_init(void)
{
- /* set polarity
- * 1 = default/pos/rising , 0= neg/falling internal
- * 1 = neg/falling , 0= pos/rising external
- * Sense
- * 0 = default level internal
- * 0 = level, 1 = edge external
- */
-
- unsigned int sense, irq;
- int bit, word;
- unsigned long ppc_cached_sense_mask[NR_MASK_WORDS];
- unsigned long ppc_cached_pol_mask[NR_MASK_WORDS];
- ppc_cached_sense_mask[0] = 0;
- ppc_cached_sense_mask[1] = 0;
- ppc_cached_sense_mask[2] = 0;
- ppc_cached_pol_mask[0] = 0;
- ppc_cached_pol_mask[1] = 0;
- ppc_cached_pol_mask[2] = 0;
-
- for (irq = 0; irq < NR_IRQS; irq++) {
-
- bit = irq & 0x1f;
- word = irq >> 5;
-
- sense =
- (irq <
- ibm4xxPIC_NumInitSenses) ? ibm4xxPIC_InitSenses[irq] : 3;
-#ifdef PPC4xx_PIC_DEBUG
- printk("PPC4xx_picext %d word:%x bit:%x sense:%x", irq, word,
- bit, sense);
-#endif
- ppc_cached_sense_mask[word] |=
- (~sense & IRQ_SENSE_MASK) << (31 - bit);
- ppc_cached_pol_mask[word] |=
- ((sense & IRQ_POLARITY_MASK) >> 1) << (31 - bit);
- switch (word) {
- case 0:
-#ifdef PPC4xx_PIC_DEBUG
- printk("Pol %x ", mfdcr(DCRN_UIC_PR(UIC0)));
- printk("Level %x\n", mfdcr(DCRN_UIC_TR(UIC0)));
-#endif
- /* polarity setting */
- mtdcr(DCRN_UIC_PR(UIC0), ppc_cached_pol_mask[word]);
-
- /* Level setting */
- mtdcr(DCRN_UIC_TR(UIC0), ppc_cached_sense_mask[word]);
-
- break;
- case 1:
-#ifdef PPC4xx_PIC_DEBUG
- printk("Pol %x ", mfdcr(DCRN_UIC_PR(UIC1)));
- printk("Level %x\n", mfdcr(DCRN_UIC_TR(UIC1)));
-#endif
- /* polarity setting */
- mtdcr(DCRN_UIC_PR(UIC1), ppc_cached_pol_mask[word]);
-
- /* Level setting */
- mtdcr(DCRN_UIC_TR(UIC1), ppc_cached_sense_mask[word]);
-
- break;
- case 2:
-#ifdef PPC4xx_PIC_DEBUG
- printk("Pol %x ", mfdcr(DCRN_UIC_PR(UIC2)));
- printk("Level %x\n", mfdcr(DCRN_UIC_TR(UIC2)));
-#endif
- /* polarity setting */
- mtdcr(DCRN_UIC_PR(UIC2), ppc_cached_pol_mask[word]);
-
- /* Level setting */
- mtdcr(DCRN_UIC_TR(UIC2), ppc_cached_sense_mask[word]);
-
- break;
+ int i;
+ unsigned char* eirqs = ppc4xx_uic_ext_irq_cfg;
+
+ for (i = 0; i < NR_UICS; ++i){
+ int base = __uic[i].base;
+
+ /* Disable everything by default */
+ ppc_cached_irq_mask[i] = 0;
+ mtdcr(DCRN_UIC_ER(base), 0);
+
+ /* We don't use critical interrupts */
+ mtdcr(DCRN_UIC_CR(base), 0);
+
+ /* Configure polarity and triggering */
+ if (ppc4xx_core_uic_cfg){
+ struct ppc4xx_uic_settings* p = ppc4xx_core_uic_cfg + i;
+ u32 mask = p->ext_irq_mask;
+ u32 pr = mfdcr(DCRN_UIC_PR(base)) & mask;
+ u32 tr = mfdcr(DCRN_UIC_TR(base)) & mask;
+
+ /* "Fixed" interrupts (on-chip devices) */
+ pr |= p->polarity & ~mask;
+ tr |= p->triggering & ~mask;
+
+ /* Merge external IRQs settings if board port
+ * provided them
+ */
+ if (eirqs && mask){
+ pr &= ~mask;
+ tr &= ~mask;
+ while (mask){
+ /* Extract current external IRQ mask */
+ u32 eirq_mask = 1 << __ilog2(mask);
+
+ if (!(*eirqs & IRQ_SENSE_LEVEL))
+ tr |= eirq_mask;
+
+ if (*eirqs & IRQ_POLARITY_POSITIVE)
+ pr |= eirq_mask;
+
+ mask &= ~eirq_mask;
+ ++eirqs;
+ }
+ }
+ mtdcr(DCRN_UIC_PR(base), pr);
+ mtdcr(DCRN_UIC_TR(base), tr);
}
- }
-
-}
-void __init
-ppc4xx_pic_init(void)
-{
- /*
- * Disable all external interrupts until they are
- * explicity requested.
- */
- ppc_cached_irq_mask[0] = 0;
- ppc_cached_irq_mask[1] = 0;
- ppc_cached_irq_mask[2] = 0;
-
-#if defined CONFIG_403
- mtdcr(DCRN_EXIER, ppc_cached_irq_mask[0]);
-
- ppc4xx_pic = &ppc403_aic;
- ppc_md.get_irq = ppc403_pic_get_irq;
-#else
-#if (NR_UICS > 2)
- mtdcr(DCRN_UIC_ER(UICB), UICB_UIC0NC | UICB_UIC1NC | UICB_UIC2NC);
- mtdcr(DCRN_UIC_CR(UICB), 0);
-
- mtdcr(DCRN_UIC_ER(UIC2), ppc_cached_irq_mask[2]);
- mtdcr(DCRN_UIC_CR(UIC2), 0);
-
-#endif
-#if (NR_UICS > 1)
-#if (NR_UICS == 2)
- /* enable cascading interrupt */
- ppc_cached_irq_mask[0] |= 1 << (31 - UIC0_UIC1NC);
-#endif
- mtdcr(DCRN_UIC_ER(UIC1), ppc_cached_irq_mask[1]);
- mtdcr(DCRN_UIC_CR(UIC1), 0);
-#endif
- mtdcr(DCRN_UIC_ER(UIC0), ppc_cached_irq_mask[0]);
- mtdcr(DCRN_UIC_CR(UIC0), 0);
-
- if (ibm4xxPIC_InitSenses != NULL)
- ppc4xx_extpic_init();
+
+ /* ACK any pending interrupts to prevent false
+ * triggering after first enable
+ */
+ mtdcr(DCRN_UIC_SR(base), 0xffffffff);
+ }
+
+ /* Perform optional implementation specific setup
+ * (e.g. enable cascade interrupts for multi-UIC configurations)
+ */
+ ppc4xx_pic_impl_init();
+
+ /* Attach low-level handlers */
+ for (i = 0; i < (NR_UICS << 5); ++i){
+ irq_desc[i].handler = &__uic[i >> 5].decl;
+ if (is_level_sensitive(i))
+ irq_desc[i].status |= IRQ_LEVEL;
+ }
- /* Clear any pending interrupts */
-#if (NR_UICS > 2)
- mtdcr(DCRN_UIC_SR(UICB), 0xffffffff);
- mtdcr(DCRN_UIC_SR(UIC2), 0xffffffff);
-#endif
-#if (NR_UICS > 1)
- mtdcr(DCRN_UIC_SR(UIC1), 0xffffffff);
-#endif
- mtdcr(DCRN_UIC_SR(UIC0), 0xffffffff);
-
- ppc4xx_pic = &ppc4xx_uic;
ppc_md.get_irq = ppc4xx_pic_get_irq;
-#endif
}
diff -Nru a/arch/ppc/syslib/ppc4xx_setup.c b/arch/ppc/syslib/ppc4xx_setup.c
--- a/arch/ppc/syslib/ppc4xx_setup.c 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/syslib/ppc4xx_setup.c 2004-11-10 23:39:19 -08:00
@@ -133,12 +133,7 @@
void __init
ppc4xx_init_IRQ(void)
{
- int i;
-
ppc4xx_pic_init();
-
- for (i = 0; i < NR_IRQS; i++)
- irq_desc[i].handler = ppc4xx_pic;
}
static void
diff -Nru a/arch/ppc/syslib/xilinx_pic.c b/arch/ppc/syslib/xilinx_pic.c
--- a/arch/ppc/syslib/xilinx_pic.c 2004-11-10 23:39:19 -08:00
+++ b/arch/ppc/syslib/xilinx_pic.c 2004-11-10 23:39:19 -08:00
@@ -38,9 +38,6 @@
#define intc_in_be32(addr) mfdcr((addr))
#endif
-/* Global Variables */
-struct hw_interrupt_type *ppc4xx_pic;
-
static void
xilinx_intc_enable(unsigned int irq)
{
@@ -115,6 +112,8 @@
void __init
ppc4xx_pic_init(void)
{
+ int i;
+
#if XPAR_XINTC_USE_DCR == 0
intc = ioremap(XPAR_INTC_0_BASEADDR, 32);
@@ -137,6 +136,8 @@
/* Turn on the Master Enable. */
intc_out_be32(intc + MER, 0x3UL);
- ppc4xx_pic = &xilinx_intc;
ppc_md.get_irq = xilinx_pic_get_irq;
+
+ for (i = 0; i < NR_IRQS; ++i)
+ irq_desc[i].handler = &xilinx_intc;
}
diff -Nru a/include/asm-ppc/ibm44x.h b/include/asm-ppc/ibm44x.h
--- a/include/asm-ppc/ibm44x.h 2004-11-10 23:39:19 -08:00
+++ b/include/asm-ppc/ibm44x.h 2004-11-10 23:39:19 -08:00
@@ -162,8 +162,7 @@
#define DCRN_UIC_VR(base) (base + 0x7)
#define DCRN_UIC_VCR(base) (base + 0x8)
-#define UIC0_UIC1NC 30 /* UIC1 non-critical interrupt */
-#define UIC0_UIC1CR 31 /* UIC1 critical interrupt */
+#define UIC0_UIC1NC 0x00000002
#define UICB_UIC0NC 0x40000000
#define UICB_UIC1NC 0x10000000
@@ -518,7 +517,6 @@
#else
#define NR_UICS 2
#endif
-#define UIC_CASCADE_MASK 0x0003 /* bits 30 & 31 */
#define BD_EMAC_ADDR(e,i) bi_enetaddr[e][i]
diff -Nru a/include/asm-ppc/ppc4xx_pic.h b/include/asm-ppc/ppc4xx_pic.h
--- a/include/asm-ppc/ppc4xx_pic.h 2004-11-10 23:39:19 -08:00
+++ b/include/asm-ppc/ppc4xx_pic.h 2004-11-10 23:39:19 -08:00
@@ -1,28 +1,53 @@
/*
+ * include/asm-ppc/ppc4xx_pic.h
*
- * Copyright (c) 1999 Grant Erickson <grant@xxxxxxxxxxxx>
+ * Interrupt controller driver for PowerPC 4xx-based processors.
*
- * Module name: ppc4xx_pic.h
+ * Copyright (c) 1999 Grant Erickson <grant@xxxxxxxxxxxx>
*
- * Description:
- * Interrupt controller driver for PowerPC 4xx-based processors.
+ * Eugene Surovegin <eugene.surovegin@xxxxxxxxxx> or <ebs@xxxxxxxxxxx>
+ * Copyright (c) 2004 Zultys Technologies
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
*/
#ifndef __PPC4XX_PIC_H__
#define __PPC4XX_PIC_H__
#include <linux/config.h>
+#include <linux/types.h>
#include <linux/irq.h>
-/* External Global Variables */
-
-extern struct hw_interrupt_type *ppc4xx_pic;
-extern unsigned int ibm4xxPIC_NumInitSenses;
-extern unsigned char *ibm4xxPIC_InitSenses;
-
-/* Function Prototypes */
+/* "Fixed" UIC settings (they are chip, not board specific),
+ * e.g. polarity/triggerring for internal interrupt sources.
+ *
+ * Platform port should provide NR_UICS-sized array named ppc4xx_core_uic_cfg
+ * with these "fixed" settings: .polarity contains exact value which will
+ * be written (masked with "ext_irq_mask") into UICx_PR register,
+ * .triggering - to UICx_TR.
+ *
+ * Settings for external IRQs can be specified separately by the
+ * board support code. In this case properly sized array of unsigned
+ * char named ppc4xx_uic_ext_irq_cfg should be filled with correct
+ * values using IRQ_SENSE_XXXXX and IRQ_POLARITY_XXXXXXX defines.
+ *
+ * If these arrays aren't provided, UIC initialization code keeps firmware
+ * configuration. Also, ppc4xx_uic_ext_irq_cfg implies ppc4xx_core_uic_cfg
+ * is defined.
+ *
+ * Both ppc4xx_core_uic_cfg and ppc4xx_uic_ext_irq_cfg are declared as
+ * "weak" symbols in ppc4xx_pic.c
+ *
+ */
+struct ppc4xx_uic_settings {
+ u32 polarity;
+ u32 triggering;
+ u32 ext_irq_mask;
+};
extern void ppc4xx_pic_init(void);
-extern int ppc4xx_pic_get_irq(struct pt_regs *regs);
-#endif /* __PPC4XX_PIC_H__ */
+#endif /* __PPC4XX_PIC_H__ */
-
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