1 /*
2  * include/asm-sh/io_snapgear.h
3  *
4  * Modified version of io_se.h for the snapgear-specific functions.
5  *
6  * May be copied or modified under the terms of the GNU General Public
7  * License.  See linux/COPYING for more information.
8  *
9  * IO functions for a SnapGear
10  */
11 
12 #ifndef _ASM_SH_IO_SNAPGEAR_H
13 #define _ASM_SH_IO_SNAPGEAR_H
14 
15 #include <asm/irq.h>
16 
17 #if defined(__SH4__)
18 /*
19  * The external interrupt lines, these take up ints 0 - 15 inclusive
20  * depending on the priority for the interrupt.  In fact the priority
21  * is the interrupt :-)
22  */
23 
24 #define IRL0_IRQ		2
25 #define IRL0_IPR_ADDR	INTC_IPRD
26 #define IRL0_IPR_POS	3
27 #define IRL0_PRIORITY	13
28 
29 #define IRL1_IRQ		5
30 #define IRL1_IPR_ADDR	INTC_IPRD
31 #define IRL1_IPR_POS	2
32 #define IRL1_PRIORITY	10
33 
34 #define IRL2_IRQ		8
35 #define IRL2_IPR_ADDR	INTC_IPRD
36 #define IRL2_IPR_POS	1
37 #define IRL2_PRIORITY	7
38 
39 #define IRL3_IRQ		11
40 #define IRL3_IPR_ADDR	INTC_IPRD
41 #define IRL3_IPR_POS	0
42 #define IRL3_PRIORITY	4
43 #endif
44 
45 #include <asm/io_generic.h>
46 
47 extern unsigned char snapgear_inb(unsigned long port);
48 extern unsigned short snapgear_inw(unsigned long port);
49 extern unsigned int snapgear_inl(unsigned long port);
50 
51 extern void snapgear_outb(unsigned char value, unsigned long port);
52 extern void snapgear_outw(unsigned short value, unsigned long port);
53 extern void snapgear_outl(unsigned int value, unsigned long port);
54 
55 extern unsigned char snapgear_inb_p(unsigned long port);
56 extern void snapgear_outb_p(unsigned char value, unsigned long port);
57 
58 extern void snapgear_insb(unsigned long port, void *addr, unsigned long count);
59 extern void snapgear_insw(unsigned long port, void *addr, unsigned long count);
60 extern void snapgear_insl(unsigned long port, void *addr, unsigned long count);
61 extern void snapgear_outsb(unsigned long port, const void *addr, unsigned long count);
62 extern void snapgear_outsw(unsigned long port, const void *addr, unsigned long count);
63 extern void snapgear_outsl(unsigned long port, const void *addr, unsigned long count);
64 
65 extern unsigned char snapgear_readb(unsigned long addr);
66 extern unsigned short snapgear_readw(unsigned long addr);
67 extern unsigned int snapgear_readl(unsigned long addr);
68 extern void snapgear_writeb(unsigned char b, unsigned long addr);
69 extern void snapgear_writew(unsigned short b, unsigned long addr);
70 extern void snapgear_writel(unsigned int b, unsigned long addr);
71 
72 extern unsigned long snapgear_isa_port2addr(unsigned long offset);
73 
74 #ifdef __WANT_IO_DEF
75 
76 # define __inb			snapgear_inb
77 # define __inw			snapgear_inw
78 # define __inl			snapgear_inl
79 # define __outb			snapgear_outb
80 # define __outw			snapgear_outw
81 # define __outl			snapgear_outl
82 
83 # define __inb_p		snapgear_inb_p
84 # define __inw_p		snapgear_inw
85 # define __inl_p		snapgear_inl
86 # define __outb_p		snapgear_outb_p
87 # define __outw_p		snapgear_outw
88 # define __outl_p		snapgear_outl
89 
90 # define __insb			snapgear_insb
91 # define __insw			snapgear_insw
92 # define __insl			snapgear_insl
93 # define __outsb		snapgear_outsb
94 # define __outsw		snapgear_outsw
95 # define __outsl		snapgear_outsl
96 
97 # define __readb		snapgear_readb
98 # define __readw		snapgear_readw
99 # define __readl		snapgear_readl
100 # define __writeb		snapgear_writeb
101 # define __writew		snapgear_writew
102 # define __writel		snapgear_writel
103 
104 # define __isa_port2addr	snapgear_isa_port2addr
105 # define __ioremap		generic_ioremap
106 # define __iounmap		generic_iounmap
107 
108 #endif
109 
110 #ifdef CONFIG_SH_SECUREEDGE5410
111 /*
112  * We need to remember what was written to the ioport as some bits
113  * are shared with other functions and you cannot read back what was
114  * written :-|
115  *
116  * Bit        Read                   Write
117  * -----------------------------------------------
118  * D0         DCD on ttySC1          power
119  * D1         Reset Switch           heatbeat
120  * D2         ttySC0 CTS (7100)      LAN
121  * D3         -                      WAN
122  * D4         ttySC0 DCD (7100)      CONSOLE
123  * D5         -                      ONLINE
124  * D6         -                      VPN
125  * D7         -                      DTR on ttySC1
126  * D8         -                      ttySC0 RTS (7100)
127  * D9         -                      ttySC0 DTR (7100)
128  * D10        -                      RTC SCLK
129  * D11        RTC DATA               RTC DATA
130  * D12        -                      RTS RESET
131  */
132 
133  #define SECUREEDGE_IOPORT_ADDR ((volatile short *) 0xb0000000)
134  extern unsigned short secureedge5410_ioport;
135 
136  #define SECUREEDGE_WRITE_IOPORT(val, mask) (*SECUREEDGE_IOPORT_ADDR = \
137 		 (secureedge5410_ioport = \
138 		 		((secureedge5410_ioport & ~(mask)) | ((val) & (mask)))))
139  #define SECUREEDGE_READ_IOPORT() \
140  		 ((*SECUREEDGE_IOPORT_ADDR&0x0817) | (secureedge5410_ioport&~0x0817))
141 #endif
142 
143 #endif /* _ASM_SH_IO_SNAPGEAR_H */
144