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authorsfking@fdwdc.com <sfking@fdwdc.com>2009-06-19 21:11:10 -0400
committerGreg Ungerer <gerg@uclinux.org>2009-09-09 22:01:23 -0400
commit7846fe800a81adae1e28d9d035b5226f75358280 (patch)
treeef9d2f48acb2bf5c916af71643723bc4f6f420f4 /arch/m68knommu/platform
parentf7a20ba06435d067247bd50a15a1d550b9b3fc7d (diff)
generic GPIO support for the Freescale Coldfire 532x.
Add support for the 532x. Signed-off-by: Steven King <sfking@fdwdc.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68knommu/platform')
-rw-r--r--arch/m68knommu/platform/532x/Makefile2
-rw-r--r--arch/m68knommu/platform/532x/config.c4
-rw-r--r--arch/m68knommu/platform/532x/gpio.c337
3 files changed, 340 insertions, 3 deletions
diff --git a/arch/m68knommu/platform/532x/Makefile b/arch/m68knommu/platform/532x/Makefile
index e431912f5628..4cc23245bcd1 100644
--- a/arch/m68knommu/platform/532x/Makefile
+++ b/arch/m68knommu/platform/532x/Makefile
@@ -15,4 +15,4 @@
15asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1 15asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1
16 16
17#obj-y := config.o usb-mcf532x.o spi-mcf532x.o 17#obj-y := config.o usb-mcf532x.o spi-mcf532x.o
18obj-y := config.o 18obj-y := config.o gpio.o
diff --git a/arch/m68knommu/platform/532x/config.c b/arch/m68knommu/platform/532x/config.c
index cdb761971f7a..28eb9ea55f42 100644
--- a/arch/m68knommu/platform/532x/config.c
+++ b/arch/m68knommu/platform/532x/config.c
@@ -438,8 +438,8 @@ void gpio_init(void)
438 /* Initialize TIN3 as a GPIO output to enable the write 438 /* Initialize TIN3 as a GPIO output to enable the write
439 half of the latch */ 439 half of the latch */
440 MCF_GPIO_PAR_TIMER = 0x00; 440 MCF_GPIO_PAR_TIMER = 0x00;
441 MCF_GPIO_PDDR_TIMER = 0x08; 441 __raw_writeb(0x08, MCFGPIO_PDDR_TIMER);
442 MCF_GPIO_PCLRR_TIMER = 0x0; 442 __raw_writeb(0x00, MCFGPIO_PCLRR_TIMER);
443 443
444} 444}
445 445
diff --git a/arch/m68knommu/platform/532x/gpio.c b/arch/m68knommu/platform/532x/gpio.c
new file mode 100644
index 000000000000..184b77382c3d
--- /dev/null
+++ b/arch/m68knommu/platform/532x/gpio.c
@@ -0,0 +1,337 @@
1/*
2 * Coldfire generic GPIO 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#include <linux/kernel.h>
17#include <linux/init.h>
18
19#include <asm/coldfire.h>
20#include <asm/mcfsim.h>
21#include <asm/mcfgpio.h>
22
23static struct mcf_gpio_chip mcf_gpio_chips[] = {
24 {
25 .gpio_chip = {
26 .label = "PIRQ",
27 .request = mcf_gpio_request,
28 .free = mcf_gpio_free,
29 .direction_input = mcf_gpio_direction_input,
30 .direction_output = mcf_gpio_direction_output,
31 .get = mcf_gpio_get_value,
32 .set = mcf_gpio_set_value,
33 .ngpio = 8,
34 },
35 .pddr = MCFEPORT_EPDDR,
36 .podr = MCFEPORT_EPDR,
37 .ppdr = MCFEPORT_EPPDR,
38 },
39 {
40 .gpio_chip = {
41 .label = "FECH",
42 .request = mcf_gpio_request,
43 .free = mcf_gpio_free,
44 .direction_input = mcf_gpio_direction_input,
45 .direction_output = mcf_gpio_direction_output,
46 .get = mcf_gpio_get_value,
47 .set = mcf_gpio_set_value_fast,
48 .base = 8,
49 .ngpio = 8,
50 },
51 .pddr = MCFGPIO_PDDR_FECH,
52 .podr = MCFGPIO_PODR_FECH,
53 .ppdr = MCFGPIO_PPDSDR_FECH,
54 .setr = MCFGPIO_PPDSDR_FECH,
55 .clrr = MCFGPIO_PCLRR_FECH,
56 },
57 {
58 .gpio_chip = {
59 .label = "FECL",
60 .request = mcf_gpio_request,
61 .free = mcf_gpio_free,
62 .direction_input = mcf_gpio_direction_input,
63 .direction_output = mcf_gpio_direction_output,
64 .get = mcf_gpio_get_value,
65 .set = mcf_gpio_set_value_fast,
66 .base = 16,
67 .ngpio = 8,
68 },
69 .pddr = MCFGPIO_PDDR_FECL,
70 .podr = MCFGPIO_PODR_FECL,
71 .ppdr = MCFGPIO_PPDSDR_FECL,
72 .setr = MCFGPIO_PPDSDR_FECL,
73 .clrr = MCFGPIO_PCLRR_FECL,
74 },
75 {
76 .gpio_chip = {
77 .label = "SSI",
78 .request = mcf_gpio_request,
79 .free = mcf_gpio_free,
80 .direction_input = mcf_gpio_direction_input,
81 .direction_output = mcf_gpio_direction_output,
82 .get = mcf_gpio_get_value,
83 .set = mcf_gpio_set_value_fast,
84 .base = 24,
85 .ngpio = 5,
86 },
87 .pddr = MCFGPIO_PDDR_SSI,
88 .podr = MCFGPIO_PODR_SSI,
89 .ppdr = MCFGPIO_PPDSDR_SSI,
90 .setr = MCFGPIO_PPDSDR_SSI,
91 .clrr = MCFGPIO_PCLRR_SSI,
92 },
93 {
94 .gpio_chip = {
95 .label = "BUSCTL",
96 .request = mcf_gpio_request,
97 .free = mcf_gpio_free,
98 .direction_input = mcf_gpio_direction_input,
99 .direction_output = mcf_gpio_direction_output,
100 .get = mcf_gpio_get_value,
101 .set = mcf_gpio_set_value_fast,
102 .base = 32,
103 .ngpio = 4,
104 },
105 .pddr = MCFGPIO_PDDR_BUSCTL,
106 .podr = MCFGPIO_PODR_BUSCTL,
107 .ppdr = MCFGPIO_PPDSDR_BUSCTL,
108 .setr = MCFGPIO_PPDSDR_BUSCTL,
109 .clrr = MCFGPIO_PCLRR_BUSCTL,
110 },
111 {
112 .gpio_chip = {
113 .label = "BE",
114 .request = mcf_gpio_request,
115 .free = mcf_gpio_free,
116 .direction_input = mcf_gpio_direction_input,
117 .direction_output = mcf_gpio_direction_output,
118 .get = mcf_gpio_get_value,
119 .set = mcf_gpio_set_value_fast,
120 .base = 40,
121 .ngpio = 4,
122 },
123 .pddr = MCFGPIO_PDDR_BE,
124 .podr = MCFGPIO_PODR_BE,
125 .ppdr = MCFGPIO_PPDSDR_BE,
126 .setr = MCFGPIO_PPDSDR_BE,
127 .clrr = MCFGPIO_PCLRR_BE,
128 },
129 {
130 .gpio_chip = {
131 .label = "CS",
132 .request = mcf_gpio_request,
133 .free = mcf_gpio_free,
134 .direction_input = mcf_gpio_direction_input,
135 .direction_output = mcf_gpio_direction_output,
136 .get = mcf_gpio_get_value,
137 .set = mcf_gpio_set_value_fast,
138 .base = 49,
139 .ngpio = 5,
140 },
141 .pddr = MCFGPIO_PDDR_CS,
142 .podr = MCFGPIO_PODR_CS,
143 .ppdr = MCFGPIO_PPDSDR_CS,
144 .setr = MCFGPIO_PPDSDR_CS,
145 .clrr = MCFGPIO_PCLRR_CS,
146 },
147 {
148 .gpio_chip = {
149 .label = "PWM",
150 .request = mcf_gpio_request,
151 .free = mcf_gpio_free,
152 .direction_input = mcf_gpio_direction_input,
153 .direction_output = mcf_gpio_direction_output,
154 .get = mcf_gpio_get_value,
155 .set = mcf_gpio_set_value_fast,
156 .base = 58,
157 .ngpio = 4,
158 },
159 .pddr = MCFGPIO_PDDR_PWM,
160 .podr = MCFGPIO_PODR_PWM,
161 .ppdr = MCFGPIO_PPDSDR_PWM,
162 .setr = MCFGPIO_PPDSDR_PWM,
163 .clrr = MCFGPIO_PCLRR_PWM,
164 },
165 {
166 .gpio_chip = {
167 .label = "FECI2C",
168 .request = mcf_gpio_request,
169 .free = mcf_gpio_free,
170 .direction_input = mcf_gpio_direction_input,
171 .direction_output = mcf_gpio_direction_output,
172 .get = mcf_gpio_get_value,
173 .set = mcf_gpio_set_value_fast,
174 .base = 64,
175 .ngpio = 4,
176 },
177 .pddr = MCFGPIO_PDDR_FECI2C,
178 .podr = MCFGPIO_PODR_FECI2C,
179 .ppdr = MCFGPIO_PPDSDR_FECI2C,
180 .setr = MCFGPIO_PPDSDR_FECI2C,
181 .clrr = MCFGPIO_PCLRR_FECI2C,
182 },
183 {
184 .gpio_chip = {
185 .label = "UART",
186 .request = mcf_gpio_request,
187 .free = mcf_gpio_free,
188 .direction_input = mcf_gpio_direction_input,
189 .direction_output = mcf_gpio_direction_output,
190 .get = mcf_gpio_get_value,
191 .set = mcf_gpio_set_value_fast,
192 .base = 72,
193 .ngpio = 8,
194 },
195 .pddr = MCFGPIO_PDDR_UART,
196 .podr = MCFGPIO_PODR_UART,
197 .ppdr = MCFGPIO_PPDSDR_UART,
198 .setr = MCFGPIO_PPDSDR_UART,
199 .clrr = MCFGPIO_PCLRR_UART,
200 },
201 {
202 .gpio_chip = {
203 .label = "QSPI",
204 .request = mcf_gpio_request,
205 .free = mcf_gpio_free,
206 .direction_input = mcf_gpio_direction_input,
207 .direction_output = mcf_gpio_direction_output,
208 .get = mcf_gpio_get_value,
209 .set = mcf_gpio_set_value_fast,
210 .base = 80,
211 .ngpio = 6,
212 },
213 .pddr = MCFGPIO_PDDR_QSPI,
214 .podr = MCFGPIO_PODR_QSPI,
215 .ppdr = MCFGPIO_PPDSDR_QSPI,
216 .setr = MCFGPIO_PPDSDR_QSPI,
217 .clrr = MCFGPIO_PCLRR_QSPI,
218 },
219 {
220 .gpio_chip = {
221 .label = "TIMER",
222 .request = mcf_gpio_request,
223 .free = mcf_gpio_free,
224 .direction_input = mcf_gpio_direction_input,
225 .direction_output = mcf_gpio_direction_output,
226 .get = mcf_gpio_get_value,
227 .set = mcf_gpio_set_value_fast,
228 .base = 88,
229 .ngpio = 4,
230 },
231 .pddr = MCFGPIO_PDDR_TIMER,
232 .podr = MCFGPIO_PODR_TIMER,
233 .ppdr = MCFGPIO_PPDSDR_TIMER,
234 .setr = MCFGPIO_PPDSDR_TIMER,
235 .clrr = MCFGPIO_PCLRR_TIMER,
236 },
237 {
238 .gpio_chip = {
239 .label = "LCDDATAH",
240 .request = mcf_gpio_request,
241 .free = mcf_gpio_free,
242 .direction_input = mcf_gpio_direction_input,
243 .direction_output = mcf_gpio_direction_output,
244 .get = mcf_gpio_get_value,
245 .set = mcf_gpio_set_value_fast,
246 .base = 96,
247 .ngpio = 2,
248 },
249 .pddr = MCFGPIO_PDDR_LCDDATAH,
250 .podr = MCFGPIO_PODR_LCDDATAH,
251 .ppdr = MCFGPIO_PPDSDR_LCDDATAH,
252 .setr = MCFGPIO_PPDSDR_LCDDATAH,
253 .clrr = MCFGPIO_PCLRR_LCDDATAH,
254 },
255 {
256 .gpio_chip = {
257 .label = "LCDDATAM",
258 .request = mcf_gpio_request,
259 .free = mcf_gpio_free,
260 .direction_input = mcf_gpio_direction_input,
261 .direction_output = mcf_gpio_direction_output,
262 .get = mcf_gpio_get_value,
263 .set = mcf_gpio_set_value_fast,
264 .base = 104,
265 .ngpio = 8,
266 },
267 .pddr = MCFGPIO_PDDR_LCDDATAM,
268 .podr = MCFGPIO_PODR_LCDDATAM,
269 .ppdr = MCFGPIO_PPDSDR_LCDDATAM,
270 .setr = MCFGPIO_PPDSDR_LCDDATAM,
271 .clrr = MCFGPIO_PCLRR_LCDDATAM,
272 },
273 {
274 .gpio_chip = {
275 .label = "LCDDATAL",
276 .request = mcf_gpio_request,
277 .free = mcf_gpio_free,
278 .direction_input = mcf_gpio_direction_input,
279 .direction_output = mcf_gpio_direction_output,
280 .get = mcf_gpio_get_value,
281 .set = mcf_gpio_set_value_fast,
282 .base = 112,
283 .ngpio = 8,
284 },
285 .pddr = MCFGPIO_PDDR_LCDDATAL,
286 .podr = MCFGPIO_PODR_LCDDATAL,
287 .ppdr = MCFGPIO_PPDSDR_LCDDATAL,
288 .setr = MCFGPIO_PPDSDR_LCDDATAL,
289 .clrr = MCFGPIO_PCLRR_LCDDATAL,
290 },
291 {
292 .gpio_chip = {
293 .label = "LCDCTLH",
294 .request = mcf_gpio_request,
295 .free = mcf_gpio_free,
296 .direction_input = mcf_gpio_direction_input,
297 .direction_output = mcf_gpio_direction_output,
298 .get = mcf_gpio_get_value,
299 .set = mcf_gpio_set_value_fast,
300 .base = 120,
301 .ngpio = 1,
302 },
303 .pddr = MCFGPIO_PDDR_LCDCTLH,
304 .podr = MCFGPIO_PODR_LCDCTLH,
305 .ppdr = MCFGPIO_PPDSDR_LCDCTLH,
306 .setr = MCFGPIO_PPDSDR_LCDCTLH,
307 .clrr = MCFGPIO_PCLRR_LCDCTLH,
308 },
309 {
310 .gpio_chip = {
311 .label = "LCDCTLL",
312 .request = mcf_gpio_request,
313 .free = mcf_gpio_free,
314 .direction_input = mcf_gpio_direction_input,
315 .direction_output = mcf_gpio_direction_output,
316 .get = mcf_gpio_get_value,
317 .set = mcf_gpio_set_value_fast,
318 .base = 128,
319 .ngpio = 8,
320 },
321 .pddr = MCFGPIO_PDDR_LCDCTLL,
322 .podr = MCFGPIO_PODR_LCDCTLL,
323 .ppdr = MCFGPIO_PPDSDR_LCDCTLL,
324 .setr = MCFGPIO_PPDSDR_LCDCTLL,
325 .clrr = MCFGPIO_PCLRR_LCDCTLL,
326 },
327};
328
329static int __init mcf_gpio_init(void)
330{
331 unsigned i = 0;
332 while (i < ARRAY_SIZE(mcf_gpio_chips))
333 (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]);
334 return 0;
335}
336
337core_initcall(mcf_gpio_init);
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-07 08:01:36 -0500