aboutsummaryrefslogtreecommitdiffstats
path: root/arch/m68k/include/asm
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68k/include/asm')
-rw-r--r--arch/m68k/include/asm/gpio.h169
-rw-r--r--arch/m68k/include/asm/mcfgpio.h329
-rw-r--r--arch/m68k/include/asm/pinmux.h30
3 files changed, 265 insertions, 263 deletions
diff --git a/arch/m68k/include/asm/gpio.h b/arch/m68k/include/asm/gpio.h
index 00d0071de4c3..530862207ecf 100644
--- a/arch/m68k/include/asm/gpio.h
+++ b/arch/m68k/include/asm/gpio.h
@@ -17,170 +17,9 @@
17#define coldfire_gpio_h 17#define coldfire_gpio_h
18 18
19#include <linux/io.h> 19#include <linux/io.h>
20#include <asm-generic/gpio.h>
21#include <asm/coldfire.h> 20#include <asm/coldfire.h>
22#include <asm/mcfsim.h> 21#include <asm/mcfsim.h>
23 22#include <asm/mcfgpio.h>
24/*
25 * The Freescale Coldfire family is quite varied in how they implement GPIO.
26 * Some parts have 8 bit ports, some have 16bit and some have 32bit; some have
27 * only one port, others have multiple ports; some have a single data latch
28 * for both input and output, others have a separate pin data register to read
29 * input; some require a read-modify-write access to change an output, others
30 * have set and clear registers for some of the outputs; Some have all the
31 * GPIOs in a single control area, others have some GPIOs implemented in
32 * different modules.
33 *
34 * This implementation attempts accommodate the differences while presenting
35 * a generic interface that will optimize to as few instructions as possible.
36 */
37#if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \
38 defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
39 defined(CONFIG_M527x) || defined(CONFIG_M528x) || \
40 defined(CONFIG_M532x) || defined(CONFIG_M54xx)
41
42/* These parts have GPIO organized by 8 bit ports */
43
44#define MCFGPIO_PORTTYPE u8
45#define MCFGPIO_PORTSIZE 8
46#define mcfgpio_read(port) __raw_readb(port)
47#define mcfgpio_write(data, port) __raw_writeb(data, port)
48
49#elif defined(CONFIG_M5307) || defined(CONFIG_M5407) || defined(CONFIG_M5272)
50
51/* These parts have GPIO organized by 16 bit ports */
52
53#define MCFGPIO_PORTTYPE u16
54#define MCFGPIO_PORTSIZE 16
55#define mcfgpio_read(port) __raw_readw(port)
56#define mcfgpio_write(data, port) __raw_writew(data, port)
57
58#elif defined(CONFIG_M5249)
59
60/* These parts have GPIO organized by 32 bit ports */
61
62#define MCFGPIO_PORTTYPE u32
63#define MCFGPIO_PORTSIZE 32
64#define mcfgpio_read(port) __raw_readl(port)
65#define mcfgpio_write(data, port) __raw_writel(data, port)
66
67#endif
68
69#define mcfgpio_bit(gpio) (1 << ((gpio) % MCFGPIO_PORTSIZE))
70#define mcfgpio_port(gpio) ((gpio) / MCFGPIO_PORTSIZE)
71
72#if defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
73 defined(CONFIG_M527x) || defined(CONFIG_M528x) || defined(CONFIG_M532x)
74/*
75 * These parts have an 'Edge' Port module (external interrupt/GPIO) which uses
76 * read-modify-write to change an output and a GPIO module which has separate
77 * set/clr registers to directly change outputs with a single write access.
78 */
79#if defined(CONFIG_M528x)
80/*
81 * The 528x also has GPIOs in other modules (GPT, QADC) which use
82 * read-modify-write as well as those controlled by the EPORT and GPIO modules.
83 */
84#define MCFGPIO_SCR_START 40
85#else
86#define MCFGPIO_SCR_START 8
87#endif
88
89#define MCFGPIO_SETR_PORT(gpio) (MCFGPIO_SETR + \
90 mcfgpio_port(gpio - MCFGPIO_SCR_START))
91
92#define MCFGPIO_CLRR_PORT(gpio) (MCFGPIO_CLRR + \
93 mcfgpio_port(gpio - MCFGPIO_SCR_START))
94#else
95
96#define MCFGPIO_SCR_START MCFGPIO_PIN_MAX
97/* with MCFGPIO_SCR == MCFGPIO_PIN_MAX, these will be optimized away */
98#define MCFGPIO_SETR_PORT(gpio) 0
99#define MCFGPIO_CLRR_PORT(gpio) 0
100
101#endif
102/*
103 * Coldfire specific helper functions
104 */
105
106/* return the port pin data register for a gpio */
107static inline u32 __mcf_gpio_ppdr(unsigned gpio)
108{
109#if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \
110 defined(CONFIG_M5307) || defined(CONFIG_M5407)
111 return MCFSIM_PADAT;
112#elif defined(CONFIG_M5272)
113 if (gpio < 16)
114 return MCFSIM_PADAT;
115 else if (gpio < 32)
116 return MCFSIM_PBDAT;
117 else
118 return MCFSIM_PCDAT;
119#elif defined(CONFIG_M5249)
120 if (gpio < 32)
121 return MCFSIM2_GPIOREAD;
122 else
123 return MCFSIM2_GPIO1READ;
124#elif defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
125 defined(CONFIG_M527x) || defined(CONFIG_M528x) || defined(CONFIG_M532x)
126 if (gpio < 8)
127 return MCFEPORT_EPPDR;
128#if defined(CONFIG_M528x)
129 else if (gpio < 16)
130 return MCFGPTA_GPTPORT;
131 else if (gpio < 24)
132 return MCFGPTB_GPTPORT;
133 else if (gpio < 32)
134 return MCFQADC_PORTQA;
135 else if (gpio < 40)
136 return MCFQADC_PORTQB;
137#endif
138 else
139 return MCFGPIO_PPDR + mcfgpio_port(gpio - MCFGPIO_SCR_START);
140#else
141 return 0;
142#endif
143}
144
145/* return the port output data register for a gpio */
146static inline u32 __mcf_gpio_podr(unsigned gpio)
147{
148#if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \
149 defined(CONFIG_M5307) || defined(CONFIG_M5407)
150 return MCFSIM_PADAT;
151#elif defined(CONFIG_M5272)
152 if (gpio < 16)
153 return MCFSIM_PADAT;
154 else if (gpio < 32)
155 return MCFSIM_PBDAT;
156 else
157 return MCFSIM_PCDAT;
158#elif defined(CONFIG_M5249)
159 if (gpio < 32)
160 return MCFSIM2_GPIOWRITE;
161 else
162 return MCFSIM2_GPIO1WRITE;
163#elif defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
164 defined(CONFIG_M527x) || defined(CONFIG_M528x) || defined(CONFIG_M532x)
165 if (gpio < 8)
166 return MCFEPORT_EPDR;
167#if defined(CONFIG_M528x)
168 else if (gpio < 16)
169 return MCFGPTA_GPTPORT;
170 else if (gpio < 24)
171 return MCFGPTB_GPTPORT;
172 else if (gpio < 32)
173 return MCFQADC_PORTQA;
174 else if (gpio < 40)
175 return MCFQADC_PORTQB;
176#endif
177 else
178 return MCFGPIO_PODR + mcfgpio_port(gpio - MCFGPIO_SCR_START);
179#else
180 return 0;
181#endif
182}
183
184/* 23/*
185 * The Generic GPIO functions 24 * The Generic GPIO functions
186 * 25 *
@@ -191,7 +30,7 @@ static inline u32 __mcf_gpio_podr(unsigned gpio)
191static inline int gpio_get_value(unsigned gpio) 30static inline int gpio_get_value(unsigned gpio)
192{ 31{
193 if (__builtin_constant_p(gpio) && gpio < MCFGPIO_PIN_MAX) 32 if (__builtin_constant_p(gpio) && gpio < MCFGPIO_PIN_MAX)
194 return mcfgpio_read(__mcf_gpio_ppdr(gpio)) & mcfgpio_bit(gpio); 33 return mcfgpio_read(__mcfgpio_ppdr(gpio)) & mcfgpio_bit(gpio);
195 else 34 else
196 return __gpio_get_value(gpio); 35 return __gpio_get_value(gpio);
197} 36}
@@ -204,12 +43,12 @@ static inline void gpio_set_value(unsigned gpio, int value)
204 MCFGPIO_PORTTYPE data; 43 MCFGPIO_PORTTYPE data;
205 44
206 local_irq_save(flags); 45 local_irq_save(flags);
207 data = mcfgpio_read(__mcf_gpio_podr(gpio)); 46 data = mcfgpio_read(__mcfgpio_podr(gpio));
208 if (value) 47 if (value)
209 data |= mcfgpio_bit(gpio); 48 data |= mcfgpio_bit(gpio);
210 else 49 else
211 data &= ~mcfgpio_bit(gpio); 50 data &= ~mcfgpio_bit(gpio);
212 mcfgpio_write(data, __mcf_gpio_podr(gpio)); 51 mcfgpio_write(data, __mcfgpio_podr(gpio));
213 local_irq_restore(flags); 52 local_irq_restore(flags);
214 } else { 53 } else {
215 if (value) 54 if (value)
diff --git a/arch/m68k/include/asm/mcfgpio.h b/arch/m68k/include/asm/mcfgpio.h
index fe468eaa51e0..67ba20ffedbe 100644
--- a/arch/m68k/include/asm/mcfgpio.h
+++ b/arch/m68k/include/asm/mcfgpio.h
@@ -16,82 +16,275 @@
16#ifndef mcfgpio_h 16#ifndef mcfgpio_h
17#define mcfgpio_h 17#define mcfgpio_h
18 18
19#include <linux/io.h> 19#ifdef CONFIG_GPIOLIB
20#include <asm-generic/gpio.h> 20#include <asm-generic/gpio.h>
21#else
22
23int __mcfgpio_get_value(unsigned gpio);
24void __mcfgpio_set_value(unsigned gpio, int value);
25int __mcfgpio_direction_input(unsigned gpio);
26int __mcfgpio_direction_output(unsigned gpio, int value);
27int __mcfgpio_request(unsigned gpio);
28void __mcfgpio_free(unsigned gpio);
29
30/* our alternate 'gpiolib' functions */
31static inline int __gpio_get_value(unsigned gpio)
32{
33 if (gpio < MCFGPIO_PIN_MAX)
34 return __mcfgpio_get_value(gpio);
35 else
36 return -EINVAL;
37}
38
39static inline void __gpio_set_value(unsigned gpio, int value)
40{
41 if (gpio < MCFGPIO_PIN_MAX)
42 __mcfgpio_set_value(gpio, value);
43}
44
45static inline int __gpio_cansleep(unsigned gpio)
46{
47 if (gpio < MCFGPIO_PIN_MAX)
48 return 0;
49 else
50 return -EINVAL;
51}
52
53static inline int __gpio_to_irq(unsigned gpio)
54{
55 return -EINVAL;
56}
57
58static inline int gpio_direction_input(unsigned gpio)
59{
60 if (gpio < MCFGPIO_PIN_MAX)
61 return __mcfgpio_direction_input(gpio);
62 else
63 return -EINVAL;
64}
65
66static inline int gpio_direction_output(unsigned gpio, int value)
67{
68 if (gpio < MCFGPIO_PIN_MAX)
69 return __mcfgpio_direction_output(gpio, value);
70 else
71 return -EINVAL;
72}
73
74static inline int gpio_request(unsigned gpio, const char *label)
75{
76 if (gpio < MCFGPIO_PIN_MAX)
77 return __mcfgpio_request(gpio);
78 else
79 return -EINVAL;
80}
81
82static inline void gpio_free(unsigned gpio)
83{
84 if (gpio < MCFGPIO_PIN_MAX)
85 __mcfgpio_free(gpio);
86}
87
88#endif /* CONFIG_GPIOLIB */
21 89
22struct mcf_gpio_chip {
23 struct gpio_chip gpio_chip;
24 void __iomem *pddr;
25 void __iomem *podr;
26 void __iomem *ppdr;
27 void __iomem *setr;
28 void __iomem *clrr;
29 const u8 *gpio_to_pinmux;
30};
31
32extern struct mcf_gpio_chip mcf_gpio_chips[];
33extern unsigned int mcf_gpio_chips_size;
34
35int mcf_gpio_direction_input(struct gpio_chip *, unsigned);
36int mcf_gpio_get_value(struct gpio_chip *, unsigned);
37int mcf_gpio_direction_output(struct gpio_chip *, unsigned, int);
38void mcf_gpio_set_value(struct gpio_chip *, unsigned, int);
39void mcf_gpio_set_value_fast(struct gpio_chip *, unsigned, int);
40int mcf_gpio_request(struct gpio_chip *, unsigned);
41void mcf_gpio_free(struct gpio_chip *, unsigned);
42 90
43/* 91/*
44 * Define macros to ease the pain of setting up the GPIO tables. There 92 * The Freescale Coldfire family is quite varied in how they implement GPIO.
45 * are two cases we need to deal with here, they cover all currently 93 * Some parts have 8 bit ports, some have 16bit and some have 32bit; some have
46 * available ColdFire GPIO hardware. There are of course minor differences 94 * only one port, others have multiple ports; some have a single data latch
47 * in the layout and number of bits in each ColdFire part, but the macros 95 * for both input and output, others have a separate pin data register to read
48 * take all that in. 96 * input; some require a read-modify-write access to change an output, others
97 * have set and clear registers for some of the outputs; Some have all the
98 * GPIOs in a single control area, others have some GPIOs implemented in
99 * different modules.
49 * 100 *
50 * Firstly is the conventional GPIO registers where we toggle individual 101 * This implementation attempts accommodate the differences while presenting
51 * bits in a register, preserving the other bits in the register. For 102 * a generic interface that will optimize to as few instructions as possible.
52 * lack of a better term I have called this the slow method.
53 */ 103 */
54#define MCFGPS(mlabel, mbase, mngpio, mpddr, mpodr, mppdr) \ 104#if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \
55 { \ 105 defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
56 .gpio_chip = { \ 106 defined(CONFIG_M527x) || defined(CONFIG_M528x) || \
57 .label = #mlabel, \ 107 defined(CONFIG_M532x) || defined(CONFIG_M54xx)
58 .request = mcf_gpio_request, \ 108
59 .free = mcf_gpio_free, \ 109/* These parts have GPIO organized by 8 bit ports */
60 .direction_input = mcf_gpio_direction_input, \ 110
61 .direction_output = mcf_gpio_direction_output,\ 111#define MCFGPIO_PORTTYPE u8
62 .get = mcf_gpio_get_value, \ 112#define MCFGPIO_PORTSIZE 8
63 .set = mcf_gpio_set_value, \ 113#define mcfgpio_read(port) __raw_readb(port)
64 .base = mbase, \ 114#define mcfgpio_write(data, port) __raw_writeb(data, port)
65 .ngpio = mngpio, \ 115
66 }, \ 116#elif defined(CONFIG_M5307) || defined(CONFIG_M5407) || defined(CONFIG_M5272)
67 .pddr = (void __iomem *) mpddr, \ 117
68 .podr = (void __iomem *) mpodr, \ 118/* These parts have GPIO organized by 16 bit ports */
69 .ppdr = (void __iomem *) mppdr, \ 119
70 } 120#define MCFGPIO_PORTTYPE u16
121#define MCFGPIO_PORTSIZE 16
122#define mcfgpio_read(port) __raw_readw(port)
123#define mcfgpio_write(data, port) __raw_writew(data, port)
124
125#elif defined(CONFIG_M5249)
126
127/* These parts have GPIO organized by 32 bit ports */
128
129#define MCFGPIO_PORTTYPE u32
130#define MCFGPIO_PORTSIZE 32
131#define mcfgpio_read(port) __raw_readl(port)
132#define mcfgpio_write(data, port) __raw_writel(data, port)
133
134#endif
71 135
136#define mcfgpio_bit(gpio) (1 << ((gpio) % MCFGPIO_PORTSIZE))
137#define mcfgpio_port(gpio) ((gpio) / MCFGPIO_PORTSIZE)
138
139#if defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
140 defined(CONFIG_M527x) || defined(CONFIG_M528x) || defined(CONFIG_M532x)
141/*
142 * These parts have an 'Edge' Port module (external interrupt/GPIO) which uses
143 * read-modify-write to change an output and a GPIO module which has separate
144 * set/clr registers to directly change outputs with a single write access.
145 */
146#if defined(CONFIG_M528x)
72/* 147/*
73 * Secondly is the faster case, where we have set and clear registers 148 * The 528x also has GPIOs in other modules (GPT, QADC) which use
74 * that allow us to set or clear a bit with a single write, not having 149 * read-modify-write as well as those controlled by the EPORT and GPIO modules.
75 * to worry about preserving other bits.
76 */ 150 */
77#define MCFGPF(mlabel, mbase, mngpio) \ 151#define MCFGPIO_SCR_START 40
78 { \ 152#else
79 .gpio_chip = { \ 153#define MCFGPIO_SCR_START 8
80 .label = #mlabel, \ 154#endif
81 .request = mcf_gpio_request, \ 155
82 .free = mcf_gpio_free, \ 156#define MCFGPIO_SETR_PORT(gpio) (MCFGPIO_SETR + \
83 .direction_input = mcf_gpio_direction_input, \ 157 mcfgpio_port(gpio - MCFGPIO_SCR_START))
84 .direction_output = mcf_gpio_direction_output,\ 158
85 .get = mcf_gpio_get_value, \ 159#define MCFGPIO_CLRR_PORT(gpio) (MCFGPIO_CLRR + \
86 .set = mcf_gpio_set_value_fast, \ 160 mcfgpio_port(gpio - MCFGPIO_SCR_START))
87 .base = mbase, \ 161#else
88 .ngpio = mngpio, \ 162
89 }, \ 163#define MCFGPIO_SCR_START MCFGPIO_PIN_MAX
90 .pddr = (void __iomem *) MCFGPIO_PDDR_##mlabel, \ 164/* with MCFGPIO_SCR == MCFGPIO_PIN_MAX, these will be optimized away */
91 .podr = (void __iomem *) MCFGPIO_PODR_##mlabel, \ 165#define MCFGPIO_SETR_PORT(gpio) 0
92 .ppdr = (void __iomem *) MCFGPIO_PPDSDR_##mlabel, \ 166#define MCFGPIO_CLRR_PORT(gpio) 0
93 .setr = (void __iomem *) MCFGPIO_PPDSDR_##mlabel, \
94 .clrr = (void __iomem *) MCFGPIO_PCLRR_##mlabel, \
95 }
96 167
97#endif 168#endif
169/*
170 * Coldfire specific helper functions
171 */
172
173/* return the port pin data register for a gpio */
174static inline u32 __mcfgpio_ppdr(unsigned gpio)
175{
176#if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \
177 defined(CONFIG_M5307) || defined(CONFIG_M5407)
178 return MCFSIM_PADAT;
179#elif defined(CONFIG_M5272)
180 if (gpio < 16)
181 return MCFSIM_PADAT;
182 else if (gpio < 32)
183 return MCFSIM_PBDAT;
184 else
185 return MCFSIM_PCDAT;
186#elif defined(CONFIG_M5249)
187 if (gpio < 32)
188 return MCFSIM2_GPIOREAD;
189 else
190 return MCFSIM2_GPIO1READ;
191#elif defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
192 defined(CONFIG_M527x) || defined(CONFIG_M528x) || defined(CONFIG_M532x)
193 if (gpio < 8)
194 return MCFEPORT_EPPDR;
195#if defined(CONFIG_M528x)
196 else if (gpio < 16)
197 return MCFGPTA_GPTPORT;
198 else if (gpio < 24)
199 return MCFGPTB_GPTPORT;
200 else if (gpio < 32)
201 return MCFQADC_PORTQA;
202 else if (gpio < 40)
203 return MCFQADC_PORTQB;
204#endif
205 else
206 return MCFGPIO_PPDR + mcfgpio_port(gpio - MCFGPIO_SCR_START);
207#else
208 return 0;
209#endif
210}
211
212/* return the port output data register for a gpio */
213static inline u32 __mcfgpio_podr(unsigned gpio)
214{
215#if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \
216 defined(CONFIG_M5307) || defined(CONFIG_M5407)
217 return MCFSIM_PADAT;
218#elif defined(CONFIG_M5272)
219 if (gpio < 16)
220 return MCFSIM_PADAT;
221 else if (gpio < 32)
222 return MCFSIM_PBDAT;
223 else
224 return MCFSIM_PCDAT;
225#elif defined(CONFIG_M5249)
226 if (gpio < 32)
227 return MCFSIM2_GPIOWRITE;
228 else
229 return MCFSIM2_GPIO1WRITE;
230#elif defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
231 defined(CONFIG_M527x) || defined(CONFIG_M528x) || defined(CONFIG_M532x)
232 if (gpio < 8)
233 return MCFEPORT_EPDR;
234#if defined(CONFIG_M528x)
235 else if (gpio < 16)
236 return MCFGPTA_GPTPORT;
237 else if (gpio < 24)
238 return MCFGPTB_GPTPORT;
239 else if (gpio < 32)
240 return MCFQADC_PORTQA;
241 else if (gpio < 40)
242 return MCFQADC_PORTQB;
243#endif
244 else
245 return MCFGPIO_PODR + mcfgpio_port(gpio - MCFGPIO_SCR_START);
246#else
247 return 0;
248#endif
249}
250
251/* return the port direction data register for a gpio */
252static inline u32 __mcfgpio_pddr(unsigned gpio)
253{
254#if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \
255 defined(CONFIG_M5307) || defined(CONFIG_M5407)
256 return MCFSIM_PADDR;
257#elif defined(CONFIG_M5272)
258 if (gpio < 16)
259 return MCFSIM_PADDR;
260 else if (gpio < 32)
261 return MCFSIM_PBDDR;
262 else
263 return MCFSIM_PCDDR;
264#elif defined(CONFIG_M5249)
265 if (gpio < 32)
266 return MCFSIM2_GPIOENABLE;
267 else
268 return MCFSIM2_GPIO1ENABLE;
269#elif defined(CONFIG_M520x) || defined(CONFIG_M523x) || \
270 defined(CONFIG_M527x) || defined(CONFIG_M528x) || defined(CONFIG_M532x)
271 if (gpio < 8)
272 return MCFEPORT_EPDDR;
273#if defined(CONFIG_M528x)
274 else if (gpio < 16)
275 return MCFGPTA_GPTDDR;
276 else if (gpio < 24)
277 return MCFGPTB_GPTDDR;
278 else if (gpio < 32)
279 return MCFQADC_DDRQA;
280 else if (gpio < 40)
281 return MCFQADC_DDRQB;
282#endif
283 else
284 return MCFGPIO_PDDR + mcfgpio_port(gpio - MCFGPIO_SCR_START);
285#else
286 return 0;
287#endif
288}
289
290#endif /* mcfgpio_h */
diff --git a/arch/m68k/include/asm/pinmux.h b/arch/m68k/include/asm/pinmux.h
deleted file mode 100644
index 119ee686dbd1..000000000000
--- a/arch/m68k/include/asm/pinmux.h
+++ /dev/null
@@ -1,30 +0,0 @@
1/*
2 * Coldfire generic GPIO pinmux support.
3 *
4 * (C) Copyright 2009, Steven King <sfking@fdwdc.com>
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 as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16#ifndef pinmux_h
17#define pinmux_h
18
19#define MCFPINMUX_NONE -1
20
21extern int mcf_pinmux_request(unsigned, unsigned);
22extern void mcf_pinmux_release(unsigned, unsigned);
23
24static inline int mcf_pinmux_is_valid(unsigned pinmux)
25{
26 return pinmux != MCFPINMUX_NONE;
27}
28
29#endif
30