1 /*
2  *  arch/arm/include/asm/hardware/dec21285.h
3  *
4  *  Copyright (C) 1998 Russell King
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  *
10  *  DC21285 registers
11  */
12 #define DC21285_PCI_IACK		0x79000000
13 #define DC21285_ARMCSR_BASE		0x42000000
14 #define DC21285_PCI_TYPE_0_CONFIG	0x7b000000
15 #define DC21285_PCI_TYPE_1_CONFIG	0x7a000000
16 #define DC21285_OUTBOUND_WRITE_FLUSH	0x78000000
17 #define DC21285_FLASH			0x41000000
18 #define DC21285_PCI_IO			0x7c000000
19 #define DC21285_PCI_MEM			0x80000000
20 
21 #ifndef __ASSEMBLY__
22 #include <mach/hardware.h>
23 #define DC21285_IO(x)		((volatile unsigned long *)(ARMCSR_BASE+(x)))
24 #else
25 #define DC21285_IO(x)		(x)
26 #endif
27 
28 #define CSR_PCICMD		DC21285_IO(0x0004)
29 #define CSR_CLASSREV		DC21285_IO(0x0008)
30 #define CSR_PCICACHELINESIZE	DC21285_IO(0x000c)
31 #define CSR_PCICSRBASE		DC21285_IO(0x0010)
32 #define CSR_PCICSRIOBASE	DC21285_IO(0x0014)
33 #define CSR_PCISDRAMBASE	DC21285_IO(0x0018)
34 #define CSR_PCIROMBASE		DC21285_IO(0x0030)
35 #define CSR_MBOX0		DC21285_IO(0x0050)
36 #define CSR_MBOX1		DC21285_IO(0x0054)
37 #define CSR_MBOX2		DC21285_IO(0x0058)
38 #define CSR_MBOX3		DC21285_IO(0x005c)
39 #define CSR_DOORBELL		DC21285_IO(0x0060)
40 #define CSR_DOORBELL_SETUP	DC21285_IO(0x0064)
41 #define CSR_ROMWRITEREG		DC21285_IO(0x0068)
42 #define CSR_CSRBASEMASK		DC21285_IO(0x00f8)
43 #define CSR_CSRBASEOFFSET	DC21285_IO(0x00fc)
44 #define CSR_SDRAMBASEMASK	DC21285_IO(0x0100)
45 #define CSR_SDRAMBASEOFFSET	DC21285_IO(0x0104)
46 #define CSR_ROMBASEMASK		DC21285_IO(0x0108)
47 #define CSR_SDRAMTIMING		DC21285_IO(0x010c)
48 #define CSR_SDRAMADDRSIZE0	DC21285_IO(0x0110)
49 #define CSR_SDRAMADDRSIZE1	DC21285_IO(0x0114)
50 #define CSR_SDRAMADDRSIZE2	DC21285_IO(0x0118)
51 #define CSR_SDRAMADDRSIZE3	DC21285_IO(0x011c)
52 #define CSR_I2O_INFREEHEAD	DC21285_IO(0x0120)
53 #define CSR_I2O_INPOSTTAIL	DC21285_IO(0x0124)
54 #define CSR_I2O_OUTPOSTHEAD	DC21285_IO(0x0128)
55 #define CSR_I2O_OUTFREETAIL	DC21285_IO(0x012c)
56 #define CSR_I2O_INFREECOUNT	DC21285_IO(0x0130)
57 #define CSR_I2O_OUTPOSTCOUNT	DC21285_IO(0x0134)
58 #define CSR_I2O_INPOSTCOUNT	DC21285_IO(0x0138)
59 #define CSR_SA110_CNTL		DC21285_IO(0x013c)
60 #define SA110_CNTL_INITCMPLETE		(1 << 0)
61 #define SA110_CNTL_ASSERTSERR		(1 << 1)
62 #define SA110_CNTL_RXSERR		(1 << 3)
63 #define SA110_CNTL_SA110DRAMPARITY	(1 << 4)
64 #define SA110_CNTL_PCISDRAMPARITY	(1 << 5)
65 #define SA110_CNTL_DMASDRAMPARITY	(1 << 6)
66 #define SA110_CNTL_DISCARDTIMER		(1 << 8)
67 #define SA110_CNTL_PCINRESET		(1 << 9)
68 #define SA110_CNTL_I2O_256		(0 << 10)
69 #define SA110_CNTL_I20_512		(1 << 10)
70 #define SA110_CNTL_I2O_1024		(2 << 10)
71 #define SA110_CNTL_I2O_2048		(3 << 10)
72 #define SA110_CNTL_I2O_4096		(4 << 10)
73 #define SA110_CNTL_I2O_8192		(5 << 10)
74 #define SA110_CNTL_I2O_16384		(6 << 10)
75 #define SA110_CNTL_I2O_32768		(7 << 10)
76 #define SA110_CNTL_WATCHDOG		(1 << 13)
77 #define SA110_CNTL_ROMWIDTH_UNDEF	(0 << 14)
78 #define SA110_CNTL_ROMWIDTH_16		(1 << 14)
79 #define SA110_CNTL_ROMWIDTH_32		(2 << 14)
80 #define SA110_CNTL_ROMWIDTH_8		(3 << 14)
81 #define SA110_CNTL_ROMACCESSTIME(x)	((x)<<16)
82 #define SA110_CNTL_ROMBURSTTIME(x)	((x)<<20)
83 #define SA110_CNTL_ROMTRISTATETIME(x)	((x)<<24)
84 #define SA110_CNTL_XCSDIR(x)		((x)<<28)
85 #define SA110_CNTL_PCICFN		(1 << 31)
86 
87 /*
88  * footbridge_cfn_mode() is used when we want
89  * to check whether we are the central function
90  */
91 #define __footbridge_cfn_mode() (*CSR_SA110_CNTL & SA110_CNTL_PCICFN)
92 #if defined(CONFIG_FOOTBRIDGE_HOST) && defined(CONFIG_FOOTBRIDGE_ADDIN)
93 #define footbridge_cfn_mode() __footbridge_cfn_mode()
94 #elif defined(CONFIG_FOOTBRIDGE_HOST)
95 #define footbridge_cfn_mode() (1)
96 #else
97 #define footbridge_cfn_mode() (0)
98 #endif
99 
100 #define CSR_PCIADDR_EXTN	DC21285_IO(0x0140)
101 #define CSR_PREFETCHMEMRANGE	DC21285_IO(0x0144)
102 #define CSR_XBUS_CYCLE		DC21285_IO(0x0148)
103 #define CSR_XBUS_IOSTROBE	DC21285_IO(0x014c)
104 #define CSR_DOORBELL_PCI	DC21285_IO(0x0150)
105 #define CSR_DOORBELL_SA110	DC21285_IO(0x0154)
106 #define CSR_UARTDR		DC21285_IO(0x0160)
107 #define CSR_RXSTAT		DC21285_IO(0x0164)
108 #define CSR_H_UBRLCR		DC21285_IO(0x0168)
109 #define CSR_M_UBRLCR		DC21285_IO(0x016c)
110 #define CSR_L_UBRLCR		DC21285_IO(0x0170)
111 #define CSR_UARTCON		DC21285_IO(0x0174)
112 #define CSR_UARTFLG		DC21285_IO(0x0178)
113 #define CSR_IRQ_STATUS		DC21285_IO(0x0180)
114 #define CSR_IRQ_RAWSTATUS	DC21285_IO(0x0184)
115 #define CSR_IRQ_ENABLE		DC21285_IO(0x0188)
116 #define CSR_IRQ_DISABLE		DC21285_IO(0x018c)
117 #define CSR_IRQ_SOFT		DC21285_IO(0x0190)
118 #define CSR_FIQ_STATUS		DC21285_IO(0x0280)
119 #define CSR_FIQ_RAWSTATUS	DC21285_IO(0x0284)
120 #define CSR_FIQ_ENABLE		DC21285_IO(0x0288)
121 #define CSR_FIQ_DISABLE		DC21285_IO(0x028c)
122 #define CSR_FIQ_SOFT		DC21285_IO(0x0290)
123 #define CSR_TIMER1_LOAD		DC21285_IO(0x0300)
124 #define CSR_TIMER1_VALUE	DC21285_IO(0x0304)
125 #define CSR_TIMER1_CNTL		DC21285_IO(0x0308)
126 #define CSR_TIMER1_CLR		DC21285_IO(0x030c)
127 #define CSR_TIMER2_LOAD		DC21285_IO(0x0320)
128 #define CSR_TIMER2_VALUE	DC21285_IO(0x0324)
129 #define CSR_TIMER2_CNTL		DC21285_IO(0x0328)
130 #define CSR_TIMER2_CLR		DC21285_IO(0x032c)
131 #define CSR_TIMER3_LOAD		DC21285_IO(0x0340)
132 #define CSR_TIMER3_VALUE	DC21285_IO(0x0344)
133 #define CSR_TIMER3_CNTL		DC21285_IO(0x0348)
134 #define CSR_TIMER3_CLR		DC21285_IO(0x034c)
135 #define CSR_TIMER4_LOAD		DC21285_IO(0x0360)
136 #define CSR_TIMER4_VALUE	DC21285_IO(0x0364)
137 #define CSR_TIMER4_CNTL		DC21285_IO(0x0368)
138 #define CSR_TIMER4_CLR		DC21285_IO(0x036c)
139 
140 #define TIMER_CNTL_ENABLE	(1 << 7)
141 #define TIMER_CNTL_AUTORELOAD	(1 << 6)
142 #define TIMER_CNTL_DIV1		(0)
143 #define TIMER_CNTL_DIV16	(1 << 2)
144 #define TIMER_CNTL_DIV256	(2 << 2)
145 #define TIMER_CNTL_CNTEXT	(3 << 2)
146 
147 
148