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1 /*
2  * linux/include/arm/hardware/it8152.h
3  *
4  * Copyright Compulab Ltd., 2006,2007
5  * Mike Rapoport <mike@compulab.co.il>
6  *
7  * ITE 8152 companion chip register definitions
8  */
9 
10 #ifndef __ASM_HARDWARE_IT8152_H
11 #define __ASM_HARDWARE_IT8152_H
12 
13 #include <mach/irqs.h>
14 
15 extern void __iomem *it8152_base_address;
16 
17 #define IT8152_IO_BASE			(it8152_base_address + 0x03e00000)
18 #define IT8152_CFGREG_BASE		(it8152_base_address + 0x03f00000)
19 
20 #define __REG_IT8152(x)			(it8152_base_address + (x))
21 
22 #define IT8152_PCI_CFG_ADDR		__REG_IT8152(0x3f00800)
23 #define IT8152_PCI_CFG_DATA		__REG_IT8152(0x3f00804)
24 
25 #define IT8152_INTC_LDCNIRR		__REG_IT8152(0x3f00300)
26 #define IT8152_INTC_LDPNIRR		__REG_IT8152(0x3f00304)
27 #define IT8152_INTC_LDCNIMR		__REG_IT8152(0x3f00308)
28 #define IT8152_INTC_LDPNIMR		__REG_IT8152(0x3f0030C)
29 #define IT8152_INTC_LDNITR		__REG_IT8152(0x3f00310)
30 #define IT8152_INTC_LDNIAR		__REG_IT8152(0x3f00314)
31 #define IT8152_INTC_LPCNIRR		__REG_IT8152(0x3f00320)
32 #define IT8152_INTC_LPPNIRR		__REG_IT8152(0x3f00324)
33 #define IT8152_INTC_LPCNIMR		__REG_IT8152(0x3f00328)
34 #define IT8152_INTC_LPPNIMR		__REG_IT8152(0x3f0032C)
35 #define IT8152_INTC_LPNITR		__REG_IT8152(0x3f00330)
36 #define IT8152_INTC_LPNIAR		__REG_IT8152(0x3f00334)
37 #define IT8152_INTC_PDCNIRR		__REG_IT8152(0x3f00340)
38 #define IT8152_INTC_PDPNIRR		__REG_IT8152(0x3f00344)
39 #define IT8152_INTC_PDCNIMR		__REG_IT8152(0x3f00348)
40 #define IT8152_INTC_PDPNIMR		__REG_IT8152(0x3f0034C)
41 #define IT8152_INTC_PDNITR		__REG_IT8152(0x3f00350)
42 #define IT8152_INTC_PDNIAR		__REG_IT8152(0x3f00354)
43 #define IT8152_INTC_INTC_TYPER		__REG_IT8152(0x3f003FC)
44 
45 #define IT8152_GPIO_GPDR		__REG_IT8152(0x3f00500)
46 
47 /*
48   Interrupt controller per register summary:
49   ---------------------------------------
50   LCDNIRR:
51   IT8152_LD_IRQ(8) PCICLK stop
52   IT8152_LD_IRQ(7) MCLK ready
53   IT8152_LD_IRQ(6) s/w
54   IT8152_LD_IRQ(5) UART
55   IT8152_LD_IRQ(4) GPIO
56   IT8152_LD_IRQ(3) TIMER 4
57   IT8152_LD_IRQ(2) TIMER 3
58   IT8152_LD_IRQ(1) TIMER 2
59   IT8152_LD_IRQ(0) TIMER 1
60 
61   LPCNIRR:
62   IT8152_LP_IRQ(x) serial IRQ x
63 
64   PCIDNIRR:
65   IT8152_PD_IRQ(14) PCISERR
66   IT8152_PD_IRQ(13) CPU/PCI bridge target abort (h2pTADR)
67   IT8152_PD_IRQ(12) CPU/PCI bridge master abort (h2pMADR)
68   IT8152_PD_IRQ(11) PCI INTD
69   IT8152_PD_IRQ(10) PCI INTC
70   IT8152_PD_IRQ(9)  PCI INTB
71   IT8152_PD_IRQ(8)  PCI INTA
72   IT8152_PD_IRQ(7)  serial INTD
73   IT8152_PD_IRQ(6)  serial INTC
74   IT8152_PD_IRQ(5)  serial INTB
75   IT8152_PD_IRQ(4)  serial INTA
76   IT8152_PD_IRQ(3)  serial IRQ IOCHK (IOCHKR)
77   IT8152_PD_IRQ(2)  chaining DMA (CDMAR)
78   IT8152_PD_IRQ(1)  USB (USBR)
79   IT8152_PD_IRQ(0)  Audio controller (ACR)
80  */
81 #define IT8152_IRQ(x)   (IRQ_BOARD_START + (x))
82 #define IT8152_LAST_IRQ	(IRQ_BOARD_START + 40)
83 
84 /* IRQ-sources in 3 groups - local devices, LPC (serial), and external PCI */
85 #define IT8152_LD_IRQ_COUNT     9
86 #define IT8152_LP_IRQ_COUNT     16
87 #define IT8152_PD_IRQ_COUNT     15
88 
89 /* Priorities: */
90 #define IT8152_PD_IRQ(i)        IT8152_IRQ(i)
91 #define IT8152_LP_IRQ(i)        (IT8152_IRQ(i) + IT8152_PD_IRQ_COUNT)
92 #define IT8152_LD_IRQ(i)        (IT8152_IRQ(i) + IT8152_PD_IRQ_COUNT + IT8152_LP_IRQ_COUNT)
93 
94 /* frequently used interrupts */
95 #define IT8152_PCISERR		IT8152_PD_IRQ(14)
96 #define IT8152_H2PTADR		IT8152_PD_IRQ(13)
97 #define IT8152_H2PMAR		IT8152_PD_IRQ(12)
98 #define IT8152_PCI_INTD		IT8152_PD_IRQ(11)
99 #define IT8152_PCI_INTC		IT8152_PD_IRQ(10)
100 #define IT8152_PCI_INTB		IT8152_PD_IRQ(9)
101 #define IT8152_PCI_INTA		IT8152_PD_IRQ(8)
102 #define IT8152_CDMA_INT		IT8152_PD_IRQ(2)
103 #define IT8152_USB_INT		IT8152_PD_IRQ(1)
104 #define IT8152_AUDIO_INT	IT8152_PD_IRQ(0)
105 
106 struct pci_dev;
107 struct pci_sys_data;
108 
109 extern void it8152_irq_demux(unsigned int irq, struct irq_desc *desc);
110 extern void it8152_init_irq(void);
111 extern int it8152_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
112 extern int it8152_pci_setup(int nr, struct pci_sys_data *sys);
113 extern struct pci_bus *it8152_pci_scan_bus(int nr, struct pci_sys_data *sys);
114 
115 #endif /* __ASM_HARDWARE_IT8152_H */
116