patch-2.4.20 linux-2.4.20/include/asm-mips/ddb5xxx/ddb5477.h
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- Lines: 127
- Date:
Thu Nov 28 15:53:15 2002
- Orig file:
linux-2.4.19/include/asm-mips/ddb5xxx/ddb5477.h
- Orig date:
Fri Aug 2 17:39:45 2002
diff -urN linux-2.4.19/include/asm-mips/ddb5xxx/ddb5477.h linux-2.4.20/include/asm-mips/ddb5xxx/ddb5477.h
@@ -216,6 +216,7 @@
/*
* DDB5477 specific functions
*/
+#ifndef __ASSEMBLY__
extern void ddb5477_irq_setup(void);
/* route irq to cpu int pin */
@@ -224,10 +225,110 @@
/* low-level routine for enabling vrc5477 irq, bypassing high-level */
extern void ll_vrc5477_irq_enable(int vrc5477_irq);
extern void ll_vrc5477_irq_disable(int vrc5477_irq);
+#endif /* !__ASSEMBLY__ */
-/*
+/* PCI intr ack share PCIW0 with PCI IO */
+#define DDB_PCI_IACK_BASE DDB_PCI_IO_BASE
+
+/*
+ * Interrupt mapping
+ *
+ * We have three interrupt controllers:
+ *
+ * . CPU itself - 8 sources
+ * . i8259 - 16 sources
+ * . vrc5477 - 32 sources
+ *
+ * They connected as follows:
+ * all vrc5477 interrupts are routed to cpu IP2 (by software setting)
+ * all i8359 are routed to INTC in vrc5477 (by hardware connection)
+ *
+ * All VRC5477 PCI interrupts are level-triggered (no ack needed).
+ * All PCI irq but INTC are active low.
+ */
+
+/*
+ * irq number block assignment
+ */
+
+#define NUM_CPU_IRQ 8
+#define NUM_I8259_IRQ 16
+#define NUM_VRC5477_IRQ 32
+
+#define DDB_IRQ_BASE 0
+
+#define I8259_IRQ_BASE DDB_IRQ_BASE
+#define VRC5477_IRQ_BASE (I8259_IRQ_BASE + NUM_I8259_IRQ)
+#define CPU_IRQ_BASE (VRC5477_IRQ_BASE + NUM_VRC5477_IRQ)
+
+/*
+ * vrc5477 irq defs
+ */
+
+#define VRC5477_IRQ_CPCE (0 + VRC5477_IRQ_BASE) /* cpu parity error */
+#define VRC5477_IRQ_CNTD (1 + VRC5477_IRQ_BASE) /* cpu no target */
+#define VRC5477_IRQ_I2C (2 + VRC5477_IRQ_BASE) /* I2C */
+#define VRC5477_IRQ_DMA (3 + VRC5477_IRQ_BASE) /* DMA */
+#define VRC5477_IRQ_UART0 (4 + VRC5477_IRQ_BASE)
+#define VRC5477_IRQ_WDOG (5 + VRC5477_IRQ_BASE) /* watchdog timer */
+#define VRC5477_IRQ_SPT1 (6 + VRC5477_IRQ_BASE) /* special purpose timer 1 */
+#define VRC5477_IRQ_LBRT (7 + VRC5477_IRQ_BASE) /* local bus read timeout */
+#define VRC5477_IRQ_INTA (8 + VRC5477_IRQ_BASE) /* PCI INT #A */
+#define VRC5477_IRQ_INTB (9 + VRC5477_IRQ_BASE) /* PCI INT #B */
+#define VRC5477_IRQ_INTC (10 + VRC5477_IRQ_BASE) /* PCI INT #C */
+#define VRC5477_IRQ_INTD (11 + VRC5477_IRQ_BASE) /* PCI INT #D */
+#define VRC5477_IRQ_INTE (12 + VRC5477_IRQ_BASE) /* PCI INT #E */
+#define VRC5477_IRQ_RESERVED_13 (13 + VRC5477_IRQ_BASE) /* reserved */
+#define VRC5477_IRQ_PCIS (14 + VRC5477_IRQ_BASE) /* PCI SERR # */
+#define VRC5477_IRQ_PCI (15 + VRC5477_IRQ_BASE) /* PCI internal error */
+#define VRC5477_IRQ_IOPCI_INTA (16 + VRC5477_IRQ_BASE) /* USB-H */
+#define VRC5477_IRQ_IOPCI_INTB (17 + VRC5477_IRQ_BASE) /* USB-P */
+#define VRC5477_IRQ_IOPCI_INTC (18 + VRC5477_IRQ_BASE) /* AC97 */
+#define VRC5477_IRQ_IOPCI_INTD (19 + VRC5477_IRQ_BASE) /* Reserved */
+#define VRC5477_IRQ_UART1 (20 + VRC5477_IRQ_BASE)
+#define VRC5477_IRQ_SPT0 (21 + VRC5477_IRQ_BASE) /* special purpose timer 0 */
+#define VRC5477_IRQ_GPT0 (22 + VRC5477_IRQ_BASE) /* general purpose timer 0 */
+#define VRC5477_IRQ_GPT1 (23 + VRC5477_IRQ_BASE) /* general purpose timer 1 */
+#define VRC5477_IRQ_GPT2 (24 + VRC5477_IRQ_BASE) /* general purpose timer 2 */
+#define VRC5477_IRQ_GPT3 (25 + VRC5477_IRQ_BASE) /* general purpose timer 3 */
+#define VRC5477_IRQ_GPIO (26 + VRC5477_IRQ_BASE)
+#define VRC5477_IRQ_SIO0 (27 + VRC5477_IRQ_BASE)
+#define VRC5477_IRQ_SIO1 (28 + VRC5477_IRQ_BASE)
+#define VRC5477_IRQ_RESERVED_29 (29 + VRC5477_IRQ_BASE) /* reserved */
+#define VRC5477_IRQ_IOPCISERR (30 + VRC5477_IRQ_BASE) /* IO PCI SERR # */
+#define VRC5477_IRQ_IOPCI (31 + VRC5477_IRQ_BASE)
+
+/*
+ * i2859 irq assignment
+ */
+#define I8259_IRQ_RESERVED_0 (0 + I8259_IRQ_BASE)
+#define I8259_IRQ_KEYBOARD (1 + I8259_IRQ_BASE) /* M1543 default */
+#define I8259_IRQ_CASCADE (2 + I8259_IRQ_BASE)
+#define I8259_IRQ_UART_B (3 + I8259_IRQ_BASE) /* M1543 default, may conflict with RTC according to schematic diagram */
+#define I8259_IRQ_UART_A (4 + I8259_IRQ_BASE) /* M1543 default */
+#define I8259_IRQ_PARALLEL (5 + I8259_IRQ_BASE) /* M1543 default */
+#define I8259_IRQ_RESERVED_6 (6 + I8259_IRQ_BASE)
+#define I8259_IRQ_RESERVED_7 (7 + I8259_IRQ_BASE)
+#define I8259_IRQ_RTC (8 + I8259_IRQ_BASE) /* who set this? */
+#define I8259_IRQ_USB (9 + I8259_IRQ_BASE) /* ddb_setup */
+#define I8259_IRQ_PMU (10 + I8259_IRQ_BASE) /* ddb_setup */
+#define I8259_IRQ_RESERVED_11 (11 + I8259_IRQ_BASE)
+#define I8259_IRQ_RESERVED_12 (12 + I8259_IRQ_BASE) /* m1543_irq_setup */
+#define I8259_IRQ_RESERVED_13 (13 + I8259_IRQ_BASE)
+#define I8259_IRQ_HDC1 (14 + I8259_IRQ_BASE) /* default and ddb_setup */
+#define I8259_IRQ_HDC2 (15 + I8259_IRQ_BASE) /* default */
+
+
+/*
+ * misc
+ */
+#define VRC5477_I8259_CASCADE (VRC5477_IRQ_INTC - VRC5477_IRQ_BASE)
+#define CPU_VRC5477_CASCADE 2
+
+/*
* debug routines
*/
+#ifndef __ASSEMBLY__
#if defined(CONFIG_DEBUG)
extern void vrc5477_show_pdar_regs(void);
extern void vrc5477_show_pci_regs(void);
@@ -240,5 +341,6 @@
* RAM size
*/
extern int board_ram_size;
+#endif /* !__ASSEMBLY__ */
#endif /* __ASM_DDB5XXX_DDB5477_H */
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