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1 #ifndef __ASM_ARCH_MFP_PXA3XX_H
2 #define __ASM_ARCH_MFP_PXA3XX_H
3 
4 #define MFPR_BASE	(0x40e10000)
5 #define MFPR_SIZE	(PAGE_SIZE)
6 
7 /* MFPR register bit definitions */
8 #define MFPR_PULL_SEL		(0x1 << 15)
9 #define MFPR_PULLUP_EN		(0x1 << 14)
10 #define MFPR_PULLDOWN_EN	(0x1 << 13)
11 #define MFPR_SLEEP_SEL		(0x1 << 9)
12 #define MFPR_SLEEP_OE_N		(0x1 << 7)
13 #define MFPR_EDGE_CLEAR		(0x1 << 6)
14 #define MFPR_EDGE_FALL_EN	(0x1 << 5)
15 #define MFPR_EDGE_RISE_EN	(0x1 << 4)
16 
17 #define MFPR_SLEEP_DATA(x)	((x) << 8)
18 #define MFPR_DRIVE(x)		(((x) & 0x7) << 10)
19 #define MFPR_AF_SEL(x)		(((x) & 0x7) << 0)
20 
21 #define MFPR_EDGE_NONE		(0)
22 #define MFPR_EDGE_RISE		(MFPR_EDGE_RISE_EN)
23 #define MFPR_EDGE_FALL		(MFPR_EDGE_FALL_EN)
24 #define MFPR_EDGE_BOTH		(MFPR_EDGE_RISE | MFPR_EDGE_FALL)
25 
26 /*
27  * Table that determines the low power modes outputs, with actual settings
28  * used in parentheses for don't-care values. Except for the float output,
29  * the configured driven and pulled levels match, so if there is a need for
30  * non-LPM pulled output, the same configuration could probably be used.
31  *
32  * Output value  sleep_oe_n  sleep_data  pullup_en  pulldown_en  pull_sel
33  *                 (bit 7)    (bit 8)    (bit 14)     (bit 13)   (bit 15)
34  *
35  * Input            0          X(0)        X(0)        X(0)       0
36  * Drive 0          0          0           0           X(1)       0
37  * Drive 1          0          1           X(1)        0	  0
38  * Pull hi (1)      1          X(1)        1           0	  0
39  * Pull lo (0)      1          X(0)        0           1	  0
40  * Z (float)        1          X(0)        0           0	  0
41  */
42 #define MFPR_LPM_INPUT		(0)
43 #define MFPR_LPM_DRIVE_LOW	(MFPR_SLEEP_DATA(0) | MFPR_PULLDOWN_EN)
44 #define MFPR_LPM_DRIVE_HIGH    	(MFPR_SLEEP_DATA(1) | MFPR_PULLUP_EN)
45 #define MFPR_LPM_PULL_LOW      	(MFPR_LPM_DRIVE_LOW  | MFPR_SLEEP_OE_N)
46 #define MFPR_LPM_PULL_HIGH     	(MFPR_LPM_DRIVE_HIGH | MFPR_SLEEP_OE_N)
47 #define MFPR_LPM_FLOAT         	(MFPR_SLEEP_OE_N)
48 #define MFPR_LPM_MASK		(0xe080)
49 
50 /*
51  * The pullup and pulldown state of the MFP pin at run mode is by default
52  * determined by the selected alternate function. In case that some buggy
53  * devices need to override this default behavior,  the definitions below
54  * indicates the setting of corresponding MFPR bits
55  *
56  * Definition       pull_sel  pullup_en  pulldown_en
57  * MFPR_PULL_NONE       0         0        0
58  * MFPR_PULL_LOW        1         0        1
59  * MFPR_PULL_HIGH       1         1        0
60  * MFPR_PULL_BOTH       1         1        1
61  */
62 #define MFPR_PULL_NONE		(0)
63 #define MFPR_PULL_LOW		(MFPR_PULL_SEL | MFPR_PULLDOWN_EN)
64 #define MFPR_PULL_BOTH		(MFPR_PULL_LOW | MFPR_PULLUP_EN)
65 #define MFPR_PULL_HIGH		(MFPR_PULL_SEL | MFPR_PULLUP_EN)
66 
67 /* PXA3xx common MFP configurations - processor specific ones defined
68  * in mfp-pxa300.h and mfp-pxa320.h
69  */
70 #define GPIO0_GPIO		MFP_CFG(GPIO0, AF0)
71 #define GPIO1_GPIO		MFP_CFG(GPIO1, AF0)
72 #define GPIO2_GPIO		MFP_CFG(GPIO2, AF0)
73 #define GPIO3_GPIO		MFP_CFG(GPIO3, AF0)
74 #define GPIO4_GPIO		MFP_CFG(GPIO4, AF0)
75 #define GPIO5_GPIO		MFP_CFG(GPIO5, AF0)
76 #define GPIO6_GPIO		MFP_CFG(GPIO6, AF0)
77 #define GPIO7_GPIO		MFP_CFG(GPIO7, AF0)
78 #define GPIO8_GPIO		MFP_CFG(GPIO8, AF0)
79 #define GPIO9_GPIO		MFP_CFG(GPIO9, AF0)
80 #define GPIO10_GPIO		MFP_CFG(GPIO10, AF0)
81 #define GPIO11_GPIO		MFP_CFG(GPIO11, AF0)
82 #define GPIO12_GPIO		MFP_CFG(GPIO12, AF0)
83 #define GPIO13_GPIO		MFP_CFG(GPIO13, AF0)
84 #define GPIO14_GPIO		MFP_CFG(GPIO14, AF0)
85 #define GPIO15_GPIO		MFP_CFG(GPIO15, AF0)
86 #define GPIO16_GPIO		MFP_CFG(GPIO16, AF0)
87 #define GPIO17_GPIO		MFP_CFG(GPIO17, AF0)
88 #define GPIO18_GPIO		MFP_CFG(GPIO18, AF0)
89 #define GPIO19_GPIO		MFP_CFG(GPIO19, AF0)
90 #define GPIO20_GPIO		MFP_CFG(GPIO20, AF0)
91 #define GPIO21_GPIO		MFP_CFG(GPIO21, AF0)
92 #define GPIO22_GPIO		MFP_CFG(GPIO22, AF0)
93 #define GPIO23_GPIO		MFP_CFG(GPIO23, AF0)
94 #define GPIO24_GPIO		MFP_CFG(GPIO24, AF0)
95 #define GPIO25_GPIO		MFP_CFG(GPIO25, AF0)
96 #define GPIO26_GPIO		MFP_CFG(GPIO26, AF0)
97 #define GPIO27_GPIO		MFP_CFG(GPIO27, AF0)
98 #define GPIO28_GPIO		MFP_CFG(GPIO28, AF0)
99 #define GPIO29_GPIO		MFP_CFG(GPIO29, AF0)
100 #define GPIO30_GPIO		MFP_CFG(GPIO30, AF0)
101 #define GPIO31_GPIO		MFP_CFG(GPIO31, AF0)
102 #define GPIO32_GPIO		MFP_CFG(GPIO32, AF0)
103 #define GPIO33_GPIO		MFP_CFG(GPIO33, AF0)
104 #define GPIO34_GPIO		MFP_CFG(GPIO34, AF0)
105 #define GPIO35_GPIO		MFP_CFG(GPIO35, AF0)
106 #define GPIO36_GPIO		MFP_CFG(GPIO36, AF0)
107 #define GPIO37_GPIO		MFP_CFG(GPIO37, AF0)
108 #define GPIO38_GPIO		MFP_CFG(GPIO38, AF0)
109 #define GPIO39_GPIO		MFP_CFG(GPIO39, AF0)
110 #define GPIO40_GPIO		MFP_CFG(GPIO40, AF0)
111 #define GPIO41_GPIO		MFP_CFG(GPIO41, AF0)
112 #define GPIO42_GPIO		MFP_CFG(GPIO42, AF0)
113 #define GPIO43_GPIO		MFP_CFG(GPIO43, AF0)
114 #define GPIO44_GPIO		MFP_CFG(GPIO44, AF0)
115 #define GPIO45_GPIO		MFP_CFG(GPIO45, AF0)
116 
117 #define GPIO47_GPIO		MFP_CFG(GPIO47, AF0)
118 #define GPIO48_GPIO		MFP_CFG(GPIO48, AF0)
119 
120 #define GPIO53_GPIO		MFP_CFG(GPIO53, AF0)
121 #define GPIO54_GPIO		MFP_CFG(GPIO54, AF0)
122 #define GPIO55_GPIO		MFP_CFG(GPIO55, AF0)
123 
124 #define GPIO57_GPIO		MFP_CFG(GPIO57, AF0)
125 
126 #define GPIO63_GPIO		MFP_CFG(GPIO63, AF0)
127 #define GPIO64_GPIO		MFP_CFG(GPIO64, AF0)
128 #define GPIO65_GPIO		MFP_CFG(GPIO65, AF0)
129 #define GPIO66_GPIO		MFP_CFG(GPIO66, AF0)
130 #define GPIO67_GPIO		MFP_CFG(GPIO67, AF0)
131 #define GPIO68_GPIO		MFP_CFG(GPIO68, AF0)
132 #define GPIO69_GPIO		MFP_CFG(GPIO69, AF0)
133 #define GPIO70_GPIO		MFP_CFG(GPIO70, AF0)
134 #define GPIO71_GPIO		MFP_CFG(GPIO71, AF0)
135 #define GPIO72_GPIO		MFP_CFG(GPIO72, AF0)
136 #define GPIO73_GPIO		MFP_CFG(GPIO73, AF0)
137 #define GPIO74_GPIO		MFP_CFG(GPIO74, AF0)
138 #define GPIO75_GPIO		MFP_CFG(GPIO75, AF0)
139 #define GPIO76_GPIO		MFP_CFG(GPIO76, AF0)
140 #define GPIO77_GPIO		MFP_CFG(GPIO77, AF0)
141 #define GPIO78_GPIO		MFP_CFG(GPIO78, AF0)
142 #define GPIO79_GPIO		MFP_CFG(GPIO79, AF0)
143 #define GPIO80_GPIO		MFP_CFG(GPIO80, AF0)
144 #define GPIO81_GPIO		MFP_CFG(GPIO81, AF0)
145 #define GPIO82_GPIO		MFP_CFG(GPIO82, AF0)
146 #define GPIO83_GPIO		MFP_CFG(GPIO83, AF0)
147 #define GPIO84_GPIO		MFP_CFG(GPIO84, AF0)
148 #define GPIO85_GPIO		MFP_CFG(GPIO85, AF0)
149 #define GPIO86_GPIO		MFP_CFG(GPIO86, AF0)
150 #define GPIO87_GPIO		MFP_CFG(GPIO87, AF0)
151 #define GPIO88_GPIO		MFP_CFG(GPIO88, AF0)
152 #define GPIO89_GPIO		MFP_CFG(GPIO89, AF0)
153 #define GPIO90_GPIO		MFP_CFG(GPIO90, AF0)
154 #define GPIO91_GPIO		MFP_CFG(GPIO91, AF0)
155 #define GPIO92_GPIO		MFP_CFG(GPIO92, AF0)
156 #define GPIO93_GPIO		MFP_CFG(GPIO93, AF0)
157 #define GPIO94_GPIO		MFP_CFG(GPIO94, AF0)
158 #define GPIO95_GPIO		MFP_CFG(GPIO95, AF0)
159 #define GPIO96_GPIO		MFP_CFG(GPIO96, AF0)
160 #define GPIO97_GPIO		MFP_CFG(GPIO97, AF0)
161 #define GPIO98_GPIO		MFP_CFG(GPIO98, AF0)
162 #define GPIO99_GPIO		MFP_CFG(GPIO99, AF0)
163 #define GPIO100_GPIO		MFP_CFG(GPIO100, AF0)
164 #define GPIO101_GPIO		MFP_CFG(GPIO101, AF0)
165 #define GPIO102_GPIO		MFP_CFG(GPIO102, AF0)
166 #define GPIO103_GPIO		MFP_CFG(GPIO103, AF0)
167 #define GPIO104_GPIO		MFP_CFG(GPIO104, AF0)
168 #define GPIO105_GPIO		MFP_CFG(GPIO105, AF0)
169 #define GPIO106_GPIO		MFP_CFG(GPIO106, AF0)
170 #define GPIO107_GPIO		MFP_CFG(GPIO107, AF0)
171 #define GPIO108_GPIO		MFP_CFG(GPIO108, AF0)
172 #define GPIO109_GPIO		MFP_CFG(GPIO109, AF0)
173 #define GPIO110_GPIO		MFP_CFG(GPIO110, AF0)
174 #define GPIO111_GPIO		MFP_CFG(GPIO111, AF0)
175 #define GPIO112_GPIO		MFP_CFG(GPIO112, AF0)
176 #define GPIO113_GPIO		MFP_CFG(GPIO113, AF0)
177 #define GPIO114_GPIO		MFP_CFG(GPIO114, AF0)
178 #define GPIO115_GPIO		MFP_CFG(GPIO115, AF0)
179 #define GPIO116_GPIO		MFP_CFG(GPIO116, AF0)
180 #define GPIO117_GPIO		MFP_CFG(GPIO117, AF0)
181 #define GPIO118_GPIO		MFP_CFG(GPIO118, AF0)
182 #define GPIO119_GPIO		MFP_CFG(GPIO119, AF0)
183 #define GPIO120_GPIO		MFP_CFG(GPIO120, AF0)
184 #define GPIO121_GPIO		MFP_CFG(GPIO121, AF0)
185 #define GPIO122_GPIO		MFP_CFG(GPIO122, AF0)
186 #define GPIO123_GPIO		MFP_CFG(GPIO123, AF0)
187 #define GPIO124_GPIO		MFP_CFG(GPIO124, AF0)
188 #define GPIO125_GPIO		MFP_CFG(GPIO125, AF0)
189 #define GPIO126_GPIO		MFP_CFG(GPIO126, AF0)
190 #define GPIO127_GPIO		MFP_CFG(GPIO127, AF0)
191 
192 #define GPIO0_2_GPIO		MFP_CFG(GPIO0_2, AF0)
193 #define GPIO1_2_GPIO		MFP_CFG(GPIO1_2, AF0)
194 #define GPIO2_2_GPIO		MFP_CFG(GPIO2_2, AF0)
195 #define GPIO3_2_GPIO		MFP_CFG(GPIO3_2, AF0)
196 #define GPIO4_2_GPIO		MFP_CFG(GPIO4_2, AF0)
197 #define GPIO5_2_GPIO		MFP_CFG(GPIO5_2, AF0)
198 #define GPIO6_2_GPIO		MFP_CFG(GPIO6_2, AF0)
199 
200 /*
201  * each MFP pin will have a MFPR register, since the offset of the
202  * register varies between processors, the processor specific code
203  * should initialize the pin offsets by pxa3xx_mfp_init_addr()
204  *
205  * pxa3xx_mfp_init_addr - accepts a table of "pxa3xx_mfp_addr_map"
206  * structure, which represents a range of MFP pins from "start" to
207  * "end", with the offset begining at "offset", to define a single
208  * pin, let "end" = -1
209  *
210  * use
211  *
212  * MFP_ADDR_X() to define a range of pins
213  * MFP_ADDR()   to define a single pin
214  * MFP_ADDR_END to signal the end of pin offset definitions
215  */
216 struct pxa3xx_mfp_addr_map {
217 	unsigned int	start;
218 	unsigned int	end;
219 	unsigned long	offset;
220 };
221 
222 #define MFP_ADDR_X(start, end, offset) \
223 	{ MFP_PIN_##start, MFP_PIN_##end, offset }
224 
225 #define MFP_ADDR(pin, offset) \
226 	{ MFP_PIN_##pin, -1, offset }
227 
228 #define MFP_ADDR_END	{ MFP_PIN_INVALID, 0 }
229 
230 /*
231  * pxa3xx_mfp_read()/pxa3xx_mfp_write() - for direct read/write access
232  * to the MFPR register
233  */
234 unsigned long pxa3xx_mfp_read(int mfp);
235 void pxa3xx_mfp_write(int mfp, unsigned long mfpr_val);
236 
237 /*
238  * pxa3xx_mfp_config - configure the MFPR registers
239  *
240  * used by board specific initialization code
241  */
242 void pxa3xx_mfp_config(unsigned long *mfp_cfgs, int num);
243 
244 /*
245  * pxa3xx_mfp_init_addr() - initialize the mapping between mfp pin
246  * index and MFPR register offset
247  *
248  * used by processor specific code
249  */
250 void __init pxa3xx_mfp_init_addr(struct pxa3xx_mfp_addr_map *);
251 void __init pxa3xx_init_mfp(void);
252 #endif /* __ASM_ARCH_MFP_PXA3XX_H */
253