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1/*
2 * linux/arch/arm/mach-omap1/board-osk.c
3 *
4 * Board specific init for OMAP5912 OSK
5 *
6 * Written by Dirk Behme <dirk.behme@de.bosch.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
16 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
19 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 *
24 * You should have received a copy of the GNU General Public License along
25 * with this program; if not, write to the Free Software Foundation, Inc.,
26 * 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28#include <linux/gpio/consumer.h>
29#include <linux/gpio/driver.h>
30#include <linux/gpio/machine.h>
31#include <linux/kernel.h>
32#include <linux/init.h>
33#include <linux/platform_device.h>
34#include <linux/interrupt.h>
35#include <linux/irq.h>
36#include <linux/i2c.h>
37#include <linux/leds.h>
38#include <linux/smc91x.h>
39#include <linux/omapfb.h>
40#include <linux/mtd/mtd.h>
41#include <linux/mtd/partitions.h>
42#include <linux/mtd/physmap.h>
43#include <linux/mfd/tps65010.h>
44#include <linux/platform_data/gpio-omap.h>
45#include <linux/platform_data/omap1_bl.h>
46#include <linux/soc/ti/omap1-io.h>
47
48#include <asm/mach-types.h>
49#include <asm/mach/arch.h>
50#include <asm/mach/map.h>
51
52#include "tc.h"
53#include "flash.h"
54#include "mux.h"
55#include "hardware.h"
56#include "usb.h"
57#include "common.h"
58
59/* Name of the GPIO chip used by the OMAP for GPIOs 0..15 */
60#define OMAP_GPIO_LABEL "gpio-0-15"
61
62/* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
63#define OMAP_OSK_ETHR_START 0x04800300
64
65/* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with
66 * alternate pin configurations for hardware-controlled blinking.
67 */
68#define OSK_TPS_GPIO_USB_PWR_EN 0
69#define OSK_TPS_GPIO_LED_D3 1
70#define OSK_TPS_GPIO_LAN_RESET 2
71#define OSK_TPS_GPIO_DSP_PWR_EN 3
72#define OSK_TPS_GPIO_LED_D9 4
73#define OSK_TPS_GPIO_LED_D2 5
74
75static struct mtd_partition osk_partitions[] = {
76 /* bootloader (U-Boot, etc) in first sector */
77 {
78 .name = "bootloader",
79 .offset = 0,
80 .size = SZ_128K,
81 .mask_flags = MTD_WRITEABLE, /* force read-only */
82 },
83 /* bootloader params in the next sector */
84 {
85 .name = "params",
86 .offset = MTDPART_OFS_APPEND,
87 .size = SZ_128K,
88 .mask_flags = 0,
89 }, {
90 .name = "kernel",
91 .offset = MTDPART_OFS_APPEND,
92 .size = SZ_2M,
93 .mask_flags = 0
94 }, {
95 .name = "filesystem",
96 .offset = MTDPART_OFS_APPEND,
97 .size = MTDPART_SIZ_FULL,
98 .mask_flags = 0
99 }
100};
101
102static struct physmap_flash_data osk_flash_data = {
103 .width = 2,
104 .set_vpp = omap1_set_vpp,
105 .parts = osk_partitions,
106 .nr_parts = ARRAY_SIZE(osk_partitions),
107};
108
109static struct resource osk_flash_resource = {
110 /* this is on CS3, wherever it's mapped */
111 .flags = IORESOURCE_MEM,
112};
113
114static struct platform_device osk5912_flash_device = {
115 .name = "physmap-flash",
116 .id = 0,
117 .dev = {
118 .platform_data = &osk_flash_data,
119 },
120 .num_resources = 1,
121 .resource = &osk_flash_resource,
122};
123
124static struct smc91x_platdata osk5912_smc91x_info = {
125 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
126 .leda = RPC_LED_100_10,
127 .ledb = RPC_LED_TX_RX,
128};
129
130static struct resource osk5912_smc91x_resources[] = {
131 [0] = {
132 .start = OMAP_OSK_ETHR_START, /* Physical */
133 .end = OMAP_OSK_ETHR_START + 0xf,
134 .flags = IORESOURCE_MEM,
135 },
136 [1] = {
137 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
138 },
139};
140
141static struct platform_device osk5912_smc91x_device = {
142 .name = "smc91x",
143 .id = -1,
144 .dev = {
145 .platform_data = &osk5912_smc91x_info,
146 },
147 .num_resources = ARRAY_SIZE(osk5912_smc91x_resources),
148 .resource = osk5912_smc91x_resources,
149};
150
151static struct resource osk5912_cf_resources[] = {
152 [0] = {
153 .flags = IORESOURCE_IRQ,
154 },
155 [1] = {
156 .flags = IORESOURCE_MEM,
157 },
158};
159
160static struct platform_device osk5912_cf_device = {
161 .name = "omap_cf",
162 .id = -1,
163 .num_resources = ARRAY_SIZE(osk5912_cf_resources),
164 .resource = osk5912_cf_resources,
165};
166
167static struct platform_device *osk5912_devices[] __initdata = {
168 &osk5912_flash_device,
169 &osk5912_smc91x_device,
170 &osk5912_cf_device,
171};
172
173static const struct gpio_led tps_leds[] = {
174 /* NOTE: D9 and D2 have hardware blink support.
175 * Also, D9 requires non-battery power.
176 */
177 { .name = "d9", .default_trigger = "disk-activity", },
178 { .name = "d2", },
179 { .name = "d3", .default_trigger = "heartbeat", },
180};
181
182static struct gpiod_lookup_table tps_leds_gpio_table = {
183 .dev_id = "leds-gpio",
184 .table = {
185 /* Use local offsets on TPS65010 */
186 GPIO_LOOKUP_IDX("tps65010", OSK_TPS_GPIO_LED_D9, NULL, 0, GPIO_ACTIVE_HIGH),
187 GPIO_LOOKUP_IDX("tps65010", OSK_TPS_GPIO_LED_D2, NULL, 1, GPIO_ACTIVE_HIGH),
188 GPIO_LOOKUP_IDX("tps65010", OSK_TPS_GPIO_LED_D3, NULL, 2, GPIO_ACTIVE_LOW),
189 { }
190 },
191};
192
193static struct gpio_led_platform_data tps_leds_data = {
194 .num_leds = 3,
195 .leds = tps_leds,
196};
197
198static struct platform_device osk5912_tps_leds = {
199 .name = "leds-gpio",
200 .id = 0,
201 .dev.platform_data = &tps_leds_data,
202};
203
204/* The board just hold these GPIOs hogged from setup to teardown */
205static struct gpio_desc *eth_reset;
206static struct gpio_desc *vdd_dsp;
207
208static int osk_tps_setup(struct i2c_client *client, struct gpio_chip *gc)
209{
210 struct gpio_desc *d;
211 if (!IS_BUILTIN(CONFIG_TPS65010))
212 return -ENOSYS;
213
214 /* Set GPIO 1 HIGH to disable VBUS power supply;
215 * OHCI driver powers it up/down as needed.
216 */
217 d = gpiochip_request_own_desc(gc, OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en",
218 GPIO_ACTIVE_HIGH, GPIOD_OUT_HIGH);
219 /* Free the GPIO again as the driver will request it */
220 gpiochip_free_own_desc(d);
221
222 /* Set GPIO 2 high so LED D3 is off by default */
223 tps65010_set_gpio_out_value(GPIO2, HIGH);
224
225 /* Set GPIO 3 low to take ethernet out of reset */
226 eth_reset = gpiochip_request_own_desc(gc, OSK_TPS_GPIO_LAN_RESET, "smc_reset",
227 GPIO_ACTIVE_HIGH, GPIOD_OUT_LOW);
228
229 /* GPIO4 is VDD_DSP */
230 vdd_dsp = gpiochip_request_own_desc(gc, OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power",
231 GPIO_ACTIVE_HIGH, GPIOD_OUT_HIGH);
232 /* REVISIT if DSP support isn't configured, power it off ... */
233
234 /* Let LED1 (D9) blink; leds-gpio may override it */
235 tps65010_set_led(LED1, BLINK);
236
237 /* Set LED2 off by default */
238 tps65010_set_led(LED2, OFF);
239
240 /* Enable LOW_PWR handshake */
241 tps65010_set_low_pwr(ON);
242
243 /* Switch VLDO2 to 3.0V for AIC23 */
244 tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
245 | TPS_LDO1_ENABLE);
246
247 /* register these three LEDs */
248 osk5912_tps_leds.dev.parent = &client->dev;
249 gpiod_add_lookup_table(&tps_leds_gpio_table);
250 platform_device_register(&osk5912_tps_leds);
251
252 return 0;
253}
254
255static void osk_tps_teardown(struct i2c_client *client, struct gpio_chip *gc)
256{
257 gpiochip_free_own_desc(eth_reset);
258 gpiochip_free_own_desc(vdd_dsp);
259}
260
261static struct tps65010_board tps_board = {
262 .outmask = 0x0f,
263 .setup = osk_tps_setup,
264 .teardown = osk_tps_teardown,
265};
266
267static struct i2c_board_info __initdata osk_i2c_board_info[] = {
268 {
269 /* This device will get the name "i2c-tps65010" */
270 I2C_BOARD_INFO("tps65010", 0x48),
271 .dev_name = "tps65010",
272 .platform_data = &tps_board,
273
274 },
275 {
276 I2C_BOARD_INFO("tlv320aic23", 0x1B),
277 },
278 /* TODO when driver support is ready:
279 * - optionally on Mistral, ov9640 camera sensor at 0x30
280 */
281};
282
283static void __init osk_init_smc91x(void)
284{
285 u32 l;
286
287 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
288 l = omap_readl(EMIFS_CCS(1));
289 l |= 0x3;
290 omap_writel(l, EMIFS_CCS(1));
291}
292
293static void __init osk_init_cf(int seg)
294{
295 struct resource *res = &osk5912_cf_resources[1];
296
297 omap_cfg_reg(M7_1610_GPIO62);
298
299 switch (seg) {
300 /* NOTE: CS0 could be configured too ... */
301 case 1:
302 res->start = OMAP_CS1_PHYS;
303 break;
304 case 2:
305 res->start = OMAP_CS2_PHYS;
306 break;
307 case 3:
308 res->start = omap_cs3_phys();
309 break;
310 }
311
312 res->end = res->start + SZ_8K - 1;
313 osk5912_cf_device.dev.platform_data = (void *)(uintptr_t)seg;
314
315 /* NOTE: better EMIFS setup might support more cards; but the
316 * TRM only shows how to affect regular flash signals, not their
317 * CF/PCMCIA variants...
318 */
319 pr_debug("%s: cs%d, previous ccs %08x acs %08x\n", __func__,
320 seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg)));
321 omap_writel(0x0004a1b3, EMIFS_CCS(seg)); /* synch mode 4 etc */
322 omap_writel(0x00000000, EMIFS_ACS(seg)); /* OE hold/setup */
323}
324
325static struct gpiod_lookup_table osk_usb_gpio_table = {
326 .dev_id = "ohci",
327 .table = {
328 /* Power GPIO on the I2C-attached TPS65010 */
329 GPIO_LOOKUP("tps65010", OSK_TPS_GPIO_USB_PWR_EN, "power",
330 GPIO_ACTIVE_HIGH),
331 GPIO_LOOKUP(OMAP_GPIO_LABEL, 9, "overcurrent",
332 GPIO_ACTIVE_HIGH),
333 { }
334 },
335};
336
337static struct omap_usb_config osk_usb_config __initdata = {
338 /* has usb host connector (A) ... for development it can also
339 * be used, with a NONSTANDARD gender-bending cable/dongle, as
340 * a peripheral.
341 */
342#if IS_ENABLED(CONFIG_USB_OMAP)
343 .register_dev = 1,
344 .hmc_mode = 0,
345#else
346 .register_host = 1,
347 .hmc_mode = 16,
348 .rwc = 1,
349#endif
350 .pins[0] = 2,
351};
352
353#define EMIFS_CS3_VAL (0x88013141)
354
355static struct gpiod_lookup_table osk_irq_gpio_table = {
356 .dev_id = NULL,
357 .table = {
358 /* GPIO used for SMC91x IRQ */
359 GPIO_LOOKUP(OMAP_GPIO_LABEL, 0, "smc_irq",
360 GPIO_ACTIVE_HIGH),
361 /* GPIO used for CF IRQ */
362 GPIO_LOOKUP("gpio-48-63", 14, "cf_irq",
363 GPIO_ACTIVE_HIGH),
364 /* GPIO used by the TPS65010 chip */
365 GPIO_LOOKUP("mpuio", 1, "tps65010",
366 GPIO_ACTIVE_HIGH),
367 /* GPIOs used for serial wakeup IRQs */
368 GPIO_LOOKUP_IDX("gpio-32-47", 5, "wakeup", 0,
369 GPIO_ACTIVE_HIGH),
370 GPIO_LOOKUP_IDX("gpio-16-31", 2, "wakeup", 1,
371 GPIO_ACTIVE_HIGH),
372 GPIO_LOOKUP_IDX("gpio-48-63", 1, "wakeup", 2,
373 GPIO_ACTIVE_HIGH),
374 { }
375 },
376};
377
378static void __init osk_init(void)
379{
380 struct gpio_desc *d;
381 u32 l;
382
383 osk_init_smc91x();
384 osk_init_cf(2); /* CS2 */
385
386 /* Workaround for wrong CS3 (NOR flash) timing
387 * There are some U-Boot versions out there which configure
388 * wrong CS3 memory timings. This mainly leads to CRC
389 * or similar errors if you use NOR flash (e.g. with JFFS2)
390 */
391 l = omap_readl(EMIFS_CCS(3));
392 if (l != EMIFS_CS3_VAL)
393 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3));
394
395 osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
396 osk_flash_resource.end += SZ_32M - 1;
397
398 /*
399 * Add the GPIOs to be used as IRQs and immediately look them up
400 * to be passed as an IRQ resource. This is ugly but should work
401 * until the day we convert to device tree.
402 */
403 gpiod_add_lookup_table(&osk_irq_gpio_table);
404
405 d = gpiod_get(NULL, "smc_irq", GPIOD_IN);
406 if (IS_ERR(d)) {
407 pr_err("Unable to get SMC IRQ GPIO descriptor\n");
408 } else {
409 irq_set_irq_type(gpiod_to_irq(d), IRQ_TYPE_EDGE_RISING);
410 osk5912_smc91x_resources[1] = DEFINE_RES_IRQ(gpiod_to_irq(d));
411 }
412
413 d = gpiod_get(NULL, "cf_irq", GPIOD_IN);
414 if (IS_ERR(d)) {
415 pr_err("Unable to get CF IRQ GPIO descriptor\n");
416 } else {
417 /* the CF I/O IRQ is really active-low */
418 irq_set_irq_type(gpiod_to_irq(d), IRQ_TYPE_EDGE_FALLING);
419 osk5912_cf_resources[0] = DEFINE_RES_IRQ(gpiod_to_irq(d));
420 }
421
422 platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
423
424 l = omap_readl(USB_TRANSCEIVER_CTRL);
425 l |= (3 << 1);
426 omap_writel(l, USB_TRANSCEIVER_CTRL);
427
428 gpiod_add_lookup_table(&osk_usb_gpio_table);
429 omap1_usb_init(&osk_usb_config);
430
431 omap_serial_init();
432
433 /* irq for tps65010 chip */
434 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */
435 d = gpiod_get(NULL, "tps65010", GPIOD_IN);
436 if (IS_ERR(d))
437 pr_err("Unable to get TPS65010 IRQ GPIO descriptor\n");
438 else
439 osk_i2c_board_info[0].irq = gpiod_to_irq(d);
440 omap_register_i2c_bus(1, 400, osk_i2c_board_info,
441 ARRAY_SIZE(osk_i2c_board_info));
442}
443
444MACHINE_START(OMAP_OSK, "TI-OSK")
445 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
446 .atag_offset = 0x100,
447 .map_io = omap1_map_io,
448 .init_early = omap1_init_early,
449 .init_irq = omap1_init_irq,
450 .init_machine = osk_init,
451 .init_late = omap1_init_late,
452 .init_time = omap1_timer_init,
453 .restart = omap1_restart,
454MACHINE_END
1/*
2 * linux/arch/arm/mach-omap1/board-osk.c
3 *
4 * Board specific init for OMAP5912 OSK
5 *
6 * Written by Dirk Behme <dirk.behme@de.bosch.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
16 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
19 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 *
24 * You should have received a copy of the GNU General Public License along
25 * with this program; if not, write to the Free Software Foundation, Inc.,
26 * 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28#include <linux/gpio.h>
29#include <linux/gpio/machine.h>
30#include <linux/kernel.h>
31#include <linux/init.h>
32#include <linux/platform_device.h>
33#include <linux/interrupt.h>
34#include <linux/irq.h>
35#include <linux/i2c.h>
36#include <linux/leds.h>
37#include <linux/smc91x.h>
38#include <linux/omapfb.h>
39#include <linux/mtd/mtd.h>
40#include <linux/mtd/partitions.h>
41#include <linux/mtd/physmap.h>
42#include <linux/mfd/tps65010.h>
43#include <linux/platform_data/gpio-omap.h>
44#include <linux/platform_data/omap1_bl.h>
45
46#include <asm/mach-types.h>
47#include <asm/mach/arch.h>
48#include <asm/mach/map.h>
49
50#include "flash.h"
51#include <mach/mux.h>
52#include <mach/tc.h>
53
54#include <mach/hardware.h>
55#include <mach/usb.h>
56
57#include "common.h"
58
59/* Name of the GPIO chip used by the OMAP for GPIOs 0..15 */
60#define OMAP_GPIO_LABEL "gpio-0-15"
61
62/* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
63#define OMAP_OSK_ETHR_START 0x04800300
64
65/* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with
66 * alternate pin configurations for hardware-controlled blinking.
67 */
68#define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */)
69# define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0)
70# define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1)
71# define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2)
72# define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3)
73# define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4)
74# define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5)
75
76static struct mtd_partition osk_partitions[] = {
77 /* bootloader (U-Boot, etc) in first sector */
78 {
79 .name = "bootloader",
80 .offset = 0,
81 .size = SZ_128K,
82 .mask_flags = MTD_WRITEABLE, /* force read-only */
83 },
84 /* bootloader params in the next sector */
85 {
86 .name = "params",
87 .offset = MTDPART_OFS_APPEND,
88 .size = SZ_128K,
89 .mask_flags = 0,
90 }, {
91 .name = "kernel",
92 .offset = MTDPART_OFS_APPEND,
93 .size = SZ_2M,
94 .mask_flags = 0
95 }, {
96 .name = "filesystem",
97 .offset = MTDPART_OFS_APPEND,
98 .size = MTDPART_SIZ_FULL,
99 .mask_flags = 0
100 }
101};
102
103static struct physmap_flash_data osk_flash_data = {
104 .width = 2,
105 .set_vpp = omap1_set_vpp,
106 .parts = osk_partitions,
107 .nr_parts = ARRAY_SIZE(osk_partitions),
108};
109
110static struct resource osk_flash_resource = {
111 /* this is on CS3, wherever it's mapped */
112 .flags = IORESOURCE_MEM,
113};
114
115static struct platform_device osk5912_flash_device = {
116 .name = "physmap-flash",
117 .id = 0,
118 .dev = {
119 .platform_data = &osk_flash_data,
120 },
121 .num_resources = 1,
122 .resource = &osk_flash_resource,
123};
124
125static struct smc91x_platdata osk5912_smc91x_info = {
126 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
127 .leda = RPC_LED_100_10,
128 .ledb = RPC_LED_TX_RX,
129};
130
131static struct resource osk5912_smc91x_resources[] = {
132 [0] = {
133 .start = OMAP_OSK_ETHR_START, /* Physical */
134 .end = OMAP_OSK_ETHR_START + 0xf,
135 .flags = IORESOURCE_MEM,
136 },
137 [1] = {
138 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
139 },
140};
141
142static struct platform_device osk5912_smc91x_device = {
143 .name = "smc91x",
144 .id = -1,
145 .dev = {
146 .platform_data = &osk5912_smc91x_info,
147 },
148 .num_resources = ARRAY_SIZE(osk5912_smc91x_resources),
149 .resource = osk5912_smc91x_resources,
150};
151
152static struct resource osk5912_cf_resources[] = {
153 [0] = {
154 .flags = IORESOURCE_IRQ,
155 },
156};
157
158static struct platform_device osk5912_cf_device = {
159 .name = "omap_cf",
160 .id = -1,
161 .dev = {
162 .platform_data = (void *) 2 /* CS2 */,
163 },
164 .num_resources = ARRAY_SIZE(osk5912_cf_resources),
165 .resource = osk5912_cf_resources,
166};
167
168static struct platform_device *osk5912_devices[] __initdata = {
169 &osk5912_flash_device,
170 &osk5912_smc91x_device,
171 &osk5912_cf_device,
172};
173
174static const struct gpio_led tps_leds[] = {
175 /* NOTE: D9 and D2 have hardware blink support.
176 * Also, D9 requires non-battery power.
177 */
178 { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9",
179 .default_trigger = "disk-activity", },
180 { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", },
181 { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1,
182 .default_trigger = "heartbeat", },
183};
184
185static struct gpio_led_platform_data tps_leds_data = {
186 .num_leds = 3,
187 .leds = tps_leds,
188};
189
190static struct platform_device osk5912_tps_leds = {
191 .name = "leds-gpio",
192 .id = 0,
193 .dev.platform_data = &tps_leds_data,
194};
195
196static int osk_tps_setup(struct i2c_client *client, void *context)
197{
198 if (!IS_BUILTIN(CONFIG_TPS65010))
199 return -ENOSYS;
200
201 /* Set GPIO 1 HIGH to disable VBUS power supply;
202 * OHCI driver powers it up/down as needed.
203 */
204 gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en");
205 gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1);
206
207 /* Set GPIO 2 high so LED D3 is off by default */
208 tps65010_set_gpio_out_value(GPIO2, HIGH);
209
210 /* Set GPIO 3 low to take ethernet out of reset */
211 gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset");
212 gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0);
213
214 /* GPIO4 is VDD_DSP */
215 gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power");
216 gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1);
217 /* REVISIT if DSP support isn't configured, power it off ... */
218
219 /* Let LED1 (D9) blink; leds-gpio may override it */
220 tps65010_set_led(LED1, BLINK);
221
222 /* Set LED2 off by default */
223 tps65010_set_led(LED2, OFF);
224
225 /* Enable LOW_PWR handshake */
226 tps65010_set_low_pwr(ON);
227
228 /* Switch VLDO2 to 3.0V for AIC23 */
229 tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
230 | TPS_LDO1_ENABLE);
231
232 /* register these three LEDs */
233 osk5912_tps_leds.dev.parent = &client->dev;
234 platform_device_register(&osk5912_tps_leds);
235
236 return 0;
237}
238
239static struct tps65010_board tps_board = {
240 .base = OSK_TPS_GPIO_BASE,
241 .outmask = 0x0f,
242 .setup = osk_tps_setup,
243};
244
245static struct i2c_board_info __initdata osk_i2c_board_info[] = {
246 {
247 /* This device will get the name "i2c-tps65010" */
248 I2C_BOARD_INFO("tps65010", 0x48),
249 .dev_name = "tps65010",
250 .platform_data = &tps_board,
251
252 },
253 {
254 I2C_BOARD_INFO("tlv320aic23", 0x1B),
255 },
256 /* TODO when driver support is ready:
257 * - optionally on Mistral, ov9640 camera sensor at 0x30
258 */
259};
260
261static void __init osk_init_smc91x(void)
262{
263 u32 l;
264
265 if ((gpio_request(0, "smc_irq")) < 0) {
266 printk("Error requesting gpio 0 for smc91x irq\n");
267 return;
268 }
269
270 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
271 l = omap_readl(EMIFS_CCS(1));
272 l |= 0x3;
273 omap_writel(l, EMIFS_CCS(1));
274}
275
276static void __init osk_init_cf(void)
277{
278 omap_cfg_reg(M7_1610_GPIO62);
279 if ((gpio_request(62, "cf_irq")) < 0) {
280 printk("Error requesting gpio 62 for CF irq\n");
281 return;
282 }
283 /* the CF I/O IRQ is really active-low */
284 irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
285}
286
287static struct gpiod_lookup_table osk_usb_gpio_table = {
288 .dev_id = "ohci",
289 .table = {
290 /* Power GPIO on the I2C-attached TPS65010 */
291 GPIO_LOOKUP("i2c-tps65010", 1, "power", GPIO_ACTIVE_HIGH),
292 GPIO_LOOKUP(OMAP_GPIO_LABEL, 9, "overcurrent",
293 GPIO_ACTIVE_HIGH),
294 },
295};
296
297static struct omap_usb_config osk_usb_config __initdata = {
298 /* has usb host connector (A) ... for development it can also
299 * be used, with a NONSTANDARD gender-bending cable/dongle, as
300 * a peripheral.
301 */
302#if IS_ENABLED(CONFIG_USB_OMAP)
303 .register_dev = 1,
304 .hmc_mode = 0,
305#else
306 .register_host = 1,
307 .hmc_mode = 16,
308 .rwc = 1,
309#endif
310 .pins[0] = 2,
311};
312
313#ifdef CONFIG_OMAP_OSK_MISTRAL
314static const struct omap_lcd_config osk_lcd_config __initconst = {
315 .ctrl_name = "internal",
316};
317#endif
318
319#ifdef CONFIG_OMAP_OSK_MISTRAL
320
321#include <linux/input.h>
322#include <linux/property.h>
323#include <linux/spi/spi.h>
324#include <linux/spi/ads7846.h>
325
326#include <linux/platform_data/keypad-omap.h>
327
328static const struct property_entry mistral_at24_properties[] = {
329 PROPERTY_ENTRY_U32("pagesize", 16),
330 { }
331};
332
333static struct i2c_board_info __initdata mistral_i2c_board_info[] = {
334 {
335 /* NOTE: powered from LCD supply */
336 I2C_BOARD_INFO("24c04", 0x50),
337 .properties = mistral_at24_properties,
338 },
339 /* TODO when driver support is ready:
340 * - optionally ov9640 camera sensor at 0x30
341 */
342};
343
344static const unsigned int osk_keymap[] = {
345 /* KEY(col, row, code) */
346 KEY(0, 0, KEY_F1), /* SW4 */
347 KEY(3, 0, KEY_UP), /* (sw2/up) */
348 KEY(1, 1, KEY_LEFTCTRL), /* SW5 */
349 KEY(2, 1, KEY_LEFT), /* (sw2/left) */
350 KEY(0, 2, KEY_SPACE), /* SW3 */
351 KEY(1, 2, KEY_ESC), /* SW6 */
352 KEY(2, 2, KEY_DOWN), /* (sw2/down) */
353 KEY(2, 3, KEY_ENTER), /* (sw2/select) */
354 KEY(3, 3, KEY_RIGHT), /* (sw2/right) */
355};
356
357static const struct matrix_keymap_data osk_keymap_data = {
358 .keymap = osk_keymap,
359 .keymap_size = ARRAY_SIZE(osk_keymap),
360};
361
362static struct omap_kp_platform_data osk_kp_data = {
363 .rows = 8,
364 .cols = 8,
365 .keymap_data = &osk_keymap_data,
366 .delay = 9,
367};
368
369static struct resource osk5912_kp_resources[] = {
370 [0] = {
371 .start = INT_KEYBOARD,
372 .end = INT_KEYBOARD,
373 .flags = IORESOURCE_IRQ,
374 },
375};
376
377static struct platform_device osk5912_kp_device = {
378 .name = "omap-keypad",
379 .id = -1,
380 .dev = {
381 .platform_data = &osk_kp_data,
382 },
383 .num_resources = ARRAY_SIZE(osk5912_kp_resources),
384 .resource = osk5912_kp_resources,
385};
386
387static struct omap_backlight_config mistral_bl_data = {
388 .default_intensity = 0xa0,
389};
390
391static struct platform_device mistral_bl_device = {
392 .name = "omap-bl",
393 .id = -1,
394 .dev = {
395 .platform_data = &mistral_bl_data,
396 },
397};
398
399static struct platform_device osk5912_lcd_device = {
400 .name = "lcd_osk",
401 .id = -1,
402};
403
404static const struct gpio_led mistral_gpio_led_pins[] = {
405 {
406 .name = "mistral:red",
407 .default_trigger = "heartbeat",
408 .gpio = 3,
409 },
410 {
411 .name = "mistral:green",
412 .default_trigger = "cpu0",
413 .gpio = OMAP_MPUIO(4),
414 },
415};
416
417static struct gpio_led_platform_data mistral_gpio_led_data = {
418 .leds = mistral_gpio_led_pins,
419 .num_leds = ARRAY_SIZE(mistral_gpio_led_pins),
420};
421
422static struct platform_device mistral_gpio_leds = {
423 .name = "leds-gpio",
424 .id = -1,
425 .dev = {
426 .platform_data = &mistral_gpio_led_data,
427 },
428};
429
430static struct platform_device *mistral_devices[] __initdata = {
431 &osk5912_kp_device,
432 &mistral_bl_device,
433 &osk5912_lcd_device,
434 &mistral_gpio_leds,
435};
436
437static int mistral_get_pendown_state(void)
438{
439 return !gpio_get_value(4);
440}
441
442static const struct ads7846_platform_data mistral_ts_info = {
443 .model = 7846,
444 .vref_delay_usecs = 100, /* internal, no capacitor */
445 .x_plate_ohms = 419,
446 .y_plate_ohms = 486,
447 .get_pendown_state = mistral_get_pendown_state,
448};
449
450static struct spi_board_info __initdata mistral_boardinfo[] = { {
451 /* MicroWire (bus 2) CS0 has an ads7846e */
452 .modalias = "ads7846",
453 .platform_data = &mistral_ts_info,
454 .max_speed_hz = 120000 /* max sample rate at 3V */
455 * 26 /* command + data + overhead */,
456 .bus_num = 2,
457 .chip_select = 0,
458} };
459
460static irqreturn_t
461osk_mistral_wake_interrupt(int irq, void *ignored)
462{
463 return IRQ_HANDLED;
464}
465
466static void __init osk_mistral_init(void)
467{
468 /* NOTE: we could actually tell if there's a Mistral board
469 * attached, e.g. by trying to read something from the ads7846.
470 * But this arch_init() code is too early for that, since we
471 * can't talk to the ads or even the i2c eeprom.
472 */
473
474 /* parallel camera interface */
475 omap_cfg_reg(J15_1610_CAM_LCLK);
476 omap_cfg_reg(J18_1610_CAM_D7);
477 omap_cfg_reg(J19_1610_CAM_D6);
478 omap_cfg_reg(J14_1610_CAM_D5);
479 omap_cfg_reg(K18_1610_CAM_D4);
480 omap_cfg_reg(K19_1610_CAM_D3);
481 omap_cfg_reg(K15_1610_CAM_D2);
482 omap_cfg_reg(K14_1610_CAM_D1);
483 omap_cfg_reg(L19_1610_CAM_D0);
484 omap_cfg_reg(L18_1610_CAM_VS);
485 omap_cfg_reg(L15_1610_CAM_HS);
486 omap_cfg_reg(M19_1610_CAM_RSTZ);
487 omap_cfg_reg(Y15_1610_CAM_OUTCLK);
488
489 /* serial camera interface */
490 omap_cfg_reg(H19_1610_CAM_EXCLK);
491 omap_cfg_reg(W13_1610_CCP_CLKM);
492 omap_cfg_reg(Y12_1610_CCP_CLKP);
493 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
494 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
495 omap_cfg_reg(W14_1610_CCP_DATAP);
496
497 /* CAM_PWDN */
498 if (gpio_request(11, "cam_pwdn") == 0) {
499 omap_cfg_reg(N20_1610_GPIO11);
500 gpio_direction_output(11, 0);
501 } else
502 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
503
504
505 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */
506 gpio_request(6, "ts_busy");
507 gpio_direction_input(6);
508
509 omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */
510 gpio_request(4, "ts_int");
511 gpio_direction_input(4);
512 irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
513
514 mistral_boardinfo[0].irq = gpio_to_irq(4);
515 spi_register_board_info(mistral_boardinfo,
516 ARRAY_SIZE(mistral_boardinfo));
517
518 /* the sideways button (SW1) is for use as a "wakeup" button
519 *
520 * NOTE: The Mistral board has the wakeup button (SW1) wired
521 * to the LCD 3.3V rail, which is powered down during suspend.
522 * To allow this button to wake up the omap, work around this
523 * HW bug by rewiring SW1 to use the main 3.3V rail.
524 */
525 omap_cfg_reg(N15_1610_MPUIO2);
526 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
527 int ret = 0;
528 int irq = gpio_to_irq(OMAP_MPUIO(2));
529
530 gpio_direction_input(OMAP_MPUIO(2));
531 irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
532 /* share the IRQ in case someone wants to use the
533 * button for more than wakeup from system sleep.
534 */
535 ret = request_irq(irq,
536 &osk_mistral_wake_interrupt,
537 IRQF_SHARED, "mistral_wakeup",
538 &osk_mistral_wake_interrupt);
539 if (ret != 0) {
540 gpio_free(OMAP_MPUIO(2));
541 printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
542 ret);
543 } else
544 enable_irq_wake(irq);
545 } else
546 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
547
548 /* LCD: backlight, and power; power controls other devices on the
549 * board, like the touchscreen, EEPROM, and wakeup (!) switch.
550 */
551 omap_cfg_reg(PWL);
552 if (gpio_request(2, "lcd_pwr") == 0)
553 gpio_direction_output(2, 1);
554
555 /*
556 * GPIO based LEDs
557 */
558 omap_cfg_reg(P18_1610_GPIO3);
559 omap_cfg_reg(MPUIO4);
560
561 i2c_register_board_info(1, mistral_i2c_board_info,
562 ARRAY_SIZE(mistral_i2c_board_info));
563
564 platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
565}
566#else
567static void __init osk_mistral_init(void) { }
568#endif
569
570#define EMIFS_CS3_VAL (0x88013141)
571
572static void __init osk_init(void)
573{
574 u32 l;
575
576 osk_init_smc91x();
577 osk_init_cf();
578
579 /* Workaround for wrong CS3 (NOR flash) timing
580 * There are some U-Boot versions out there which configure
581 * wrong CS3 memory timings. This mainly leads to CRC
582 * or similar errors if you use NOR flash (e.g. with JFFS2)
583 */
584 l = omap_readl(EMIFS_CCS(3));
585 if (l != EMIFS_CS3_VAL)
586 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3));
587
588 osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
589 osk_flash_resource.end += SZ_32M - 1;
590 osk5912_smc91x_resources[1].start = gpio_to_irq(0);
591 osk5912_smc91x_resources[1].end = gpio_to_irq(0);
592 osk5912_cf_resources[0].start = gpio_to_irq(62);
593 osk5912_cf_resources[0].end = gpio_to_irq(62);
594 platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
595
596 l = omap_readl(USB_TRANSCEIVER_CTRL);
597 l |= (3 << 1);
598 omap_writel(l, USB_TRANSCEIVER_CTRL);
599
600 gpiod_add_lookup_table(&osk_usb_gpio_table);
601 omap1_usb_init(&osk_usb_config);
602
603 /* irq for tps65010 chip */
604 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */
605 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
606 gpio_direction_input(OMAP_MPUIO(1));
607
608 omap_serial_init();
609 osk_i2c_board_info[0].irq = gpio_to_irq(OMAP_MPUIO(1));
610 omap_register_i2c_bus(1, 400, osk_i2c_board_info,
611 ARRAY_SIZE(osk_i2c_board_info));
612 osk_mistral_init();
613
614#ifdef CONFIG_OMAP_OSK_MISTRAL
615 omapfb_set_lcd_config(&osk_lcd_config);
616#endif
617
618}
619
620MACHINE_START(OMAP_OSK, "TI-OSK")
621 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
622 .atag_offset = 0x100,
623 .map_io = omap16xx_map_io,
624 .init_early = omap1_init_early,
625 .init_irq = omap1_init_irq,
626 .handle_irq = omap1_handle_irq,
627 .init_machine = osk_init,
628 .init_late = omap1_init_late,
629 .init_time = omap1_timer_init,
630 .restart = omap1_restart,
631MACHINE_END