aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc/boot/dcr.h
blob: bf8f4ede192851249bbc6b1a2b0114072ead5d3f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
#ifndef _PPC_BOOT_DCR_H_
#define _PPC_BOOT_DCR_H_

#define mfdcr(rn) \
	({	\
		unsigned long rval; \
		asm volatile("mfdcr %0,%1" : "=r"(rval) : "i"(rn)); \
		rval; \
	})
#define mtdcr(rn, val) \
	asm volatile("mtdcr %0,%1" : : "i"(rn), "r"(val))
#define mfdcrx(rn) \
	({	\
		unsigned long rval; \
		asm volatile("mfdcrx %0,%1" : "=r"(rval) : "r"(rn)); \
		rval; \
	})
#define mtdcrx(rn, val) \
	({	\
		asm volatile("mtdcrx %0,%1" : : "r"(rn), "r" (val)); \
	})

/* 440GP/440GX SDRAM controller DCRs */
#define DCRN_SDRAM0_CFGADDR				0x010
#define DCRN_SDRAM0_CFGDATA				0x011

#define SDRAM0_READ(offset) ({\
	mtdcr(DCRN_SDRAM0_CFGADDR, offset); \
	mfdcr(DCRN_SDRAM0_CFGDATA); })
#define SDRAM0_WRITE(offset, data) ({\
	mtdcr(DCRN_SDRAM0_CFGADDR, offset); \
	mtdcr(DCRN_SDRAM0_CFGDATA, data); })

#define 	SDRAM0_B0CR				0x40
#define 	SDRAM0_B1CR				0x44
#define 	SDRAM0_B2CR				0x48
#define 	SDRAM0_B3CR				0x4c

static const unsigned long sdram_bxcr[] = { SDRAM0_B0CR, SDRAM0_B1CR,
					    SDRAM0_B2CR, SDRAM0_B3CR };

#define			SDRAM_CONFIG_BANK_ENABLE        0x00000001
#define			SDRAM_CONFIG_SIZE_MASK          0x000e0000
#define			SDRAM_CONFIG_BANK_SIZE(reg)	\
	(0x00400000 << ((reg & SDRAM_CONFIG_SIZE_MASK) >> 17))

/* 440GP External Bus Controller (EBC) */
#define DCRN_EBC0_CFGADDR				0x012
#define DCRN_EBC0_CFGDATA				0x013
#define   EBC_NUM_BANKS					  8
#define   EBC_B0CR					  0x00
#define   EBC_B1CR					  0x01
#define   EBC_B2CR					  0x02
#define   EBC_B3CR					  0x03
#define   EBC_B4CR					  0x04
#define   EBC_B5CR					  0x05
#define   EBC_B6CR					  0x06
#define   EBC_B7CR					  0x07
#define   EBC_BXCR(n)					  (n)
#define	    EBC_BXCR_BAS				    0xfff00000
#define	    EBC_BXCR_BS				  	    0x000e0000
#define	    EBC_BXCR_BANK_SIZE(reg) \
	(0x100000 << (((reg) & EBC_BXCR_BS) >> 17))
#define	    EBC_BXCR_BU				  	    0x00018000
#define	      EBC_BXCR_BU_OFF			  	      0x00000000
#define	      EBC_BXCR_BU_RO			  	      0x00008000
#define	      EBC_BXCR_BU_WO			  	      0x00010000
#define	      EBC_BXCR_BU_RW			  	      0x00018000
#define	    EBC_BXCR_BW				  	    0x00006000
#define   EBC_B0AP					  0x10
#define   EBC_B1AP					  0x11
#define   EBC_B2AP					  0x12
#define   EBC_B3AP					  0x13
#define   EBC_B4AP					  0x14
#define   EBC_B5AP					  0x15
#define   EBC_B6AP					  0x16
#define   EBC_B7AP					  0x17
#define   EBC_BXAP(n)					  (0x10+(n))
#define   EBC_BEAR					  0x20
#define   EBC_BESR					  0x21
#define   EBC_CFG					  0x23
#define   EBC_CID					  0x24

/* 440GP Clock, PM, chip control */
#define DCRN_CPC0_SR					0x0b0
#define DCRN_CPC0_ER					0x0b1
#define DCRN_CPC0_FR					0x0b2
#define DCRN_CPC0_SYS0					0x0e0
#define	  CPC0_SYS0_TUNE				  0xffc00000
#define	  CPC0_SYS0_FBDV_MASK				  0x003c0000
#define	  CPC0_SYS0_FWDVA_MASK				  0x00038000
#define	  CPC0_SYS0_FWDVB_MASK				  0x00007000
#define	  CPC0_SYS0_OPDV_MASK				  0x00000c00
#define	  CPC0_SYS0_EPDV_MASK				  0x00000300
/* Helper macros to compute the actual clock divider values from the
 * encodings in the CPC0 register */
#define	  CPC0_SYS0_FBDV(reg) \
		((((((reg) & CPC0_SYS0_FBDV_MASK) >> 18) - 1) & 0xf) + 1)
#define	  CPC0_SYS0_FWDVA(reg) \
		(8 - (((reg) & CPC0_SYS0_FWDVA_MASK) >> 15))
#define	  CPC0_SYS0_FWDVB(reg) \
		(8 - (((reg) & CPC0_SYS0_FWDVB_MASK) >> 12))
#define	  CPC0_SYS0_OPDV(reg) \
		((((reg) & CPC0_SYS0_OPDV_MASK) >> 10) + 1)
#define	  CPC0_SYS0_EPDV(reg) \
		((((reg) & CPC0_SYS0_EPDV_MASK) >> 8) + 1)
#define	  CPC0_SYS0_EXTSL				  0x00000080
#define	  CPC0_SYS0_RW_MASK				  0x00000060
#define	  CPC0_SYS0_RL					  0x00000010
#define	  CPC0_SYS0_ZMIISL_MASK				  0x0000000c
#define	  CPC0_SYS0_BYPASS				  0x00000002
#define	  CPC0_SYS0_NTO1				  0x00000001
#define DCRN_CPC0_SYS1					0x0e1
#define DCRN_CPC0_CUST0					0x0e2
#define DCRN_CPC0_CUST1					0x0e3
#define DCRN_CPC0_STRP0					0x0e4
#define DCRN_CPC0_STRP1					0x0e5
#define DCRN_CPC0_STRP2					0x0e6
#define DCRN_CPC0_STRP3					0x0e7
#define DCRN_CPC0_GPIO					0x0e8
#define DCRN_CPC0_PLB					0x0e9
#define DCRN_CPC0_CR1					0x0ea
#define DCRN_CPC0_CR0					0x0eb
#define	  CPC0_CR0_SWE					  0x80000000
#define	  CPC0_CR0_CETE					  0x40000000
#define	  CPC0_CR0_U1FCS				  0x20000000
#define	  CPC0_CR0_U0DTE				  0x10000000
#define	  CPC0_CR0_U0DRE				  0x08000000
#define	  CPC0_CR0_U0DC					  0x04000000
#define	  CPC0_CR0_U1DTE				  0x02000000
#define	  CPC0_CR0_U1DRE				  0x01000000
#define	  CPC0_CR0_U1DC					  0x00800000
#define	  CPC0_CR0_U0EC					  0x00400000
#define	  CPC0_CR0_U1EC					  0x00200000
#define	  CPC0_CR0_UDIV_MASK				  0x001f0000
#define	  CPC0_CR0_UDIV(reg) \
		((((reg) & CPC0_CR0_UDIV_MASK) >> 16) + 1)
#define DCRN_CPC0_MIRQ0					0x0ec
#define DCRN_CPC0_MIRQ1					0x0ed
#define DCRN_CPC0_JTAGID				0x0ef

#define DCRN_MAL0_CFG					0x180
#define MAL_RESET 0x80000000

/* 440EP Clock/Power-on Reset regs */
#define DCRN_CPR0_ADDR	0xc
#define DCRN_CPR0_DATA	0xd
#define CPR0_PLLD0	0x60
#define CPR0_OPBD0	0xc0
#define CPR0_PERD0	0xe0
#define CPR0_PRIMBD0	0xa0
#define CPR0_SCPID	0x120
#define CPR0_PLLC0	0x40

/* 405GP Clocking/Power Management/Chip Control regs */
#define DCRN_CPC0_PLLMR 0xb0
#define DCRN_405_CPC0_CR0 0xb1
#define DCRN_405_CPC0_CR1 0xb2
#define DCRN_405_CPC0_PSR 0xb4

/* 405EP Clocking/Power Management/Chip Control regs */
#define DCRN_CPC0_PLLMR0  0xf0
#define DCRN_CPC0_PLLMR1  0xf4
#define DCRN_CPC0_UCR     0xf5

/* 440GX/405EX Clock Control reg */
#define DCRN_CPR0_CLKUPD				0x020
#define DCRN_CPR0_PLLC					0x040
#define DCRN_CPR0_PLLD					0x060
#define DCRN_CPR0_PRIMAD				0x080
#define DCRN_CPR0_PRIMBD				0x0a0
#define DCRN_CPR0_OPBD					0x0c0
#define DCRN_CPR0_PERD					0x0e0
#define DCRN_CPR0_MALD					0x100

#define DCRN_SDR0_CONFIG_ADDR 	0xe
#define DCRN_SDR0_CONFIG_DATA	0xf

/* SDR read/write helper macros */
#define SDR0_READ(offset) ({\
	mtdcr(DCRN_SDR0_CONFIG_ADDR, offset); \
	mfdcr(DCRN_SDR0_CONFIG_DATA); })
#define SDR0_WRITE(offset, data) ({\
	mtdcr(DCRN_SDR0_CONFIG_ADDR, offset); \
	mtdcr(DCRN_SDR0_CONFIG_DATA, data); })

#define DCRN_SDR0_UART0		0x0120
#define DCRN_SDR0_UART1		0x0121
#define DCRN_SDR0_UART2		0x0122
#define DCRN_SDR0_UART3		0x0123


/* CPRs read/write helper macros - based off include/asm-ppc/ibm44x.h */

#define DCRN_CPR0_CFGADDR				0xc
#define DCRN_CPR0_CFGDATA				0xd

#define CPR0_READ(offset) ({\
	mtdcr(DCRN_CPR0_CFGADDR, offset); \
	mfdcr(DCRN_CPR0_CFGDATA); })
#define CPR0_WRITE(offset, data) ({\
	mtdcr(DCRN_CPR0_CFGADDR, offset); \
	mtdcr(DCRN_CPR0_CFGDATA, data); })



#endif	/* _PPC_BOOT_DCR_H_ */