2 * DBAu1200 board platform device registration
4 * Copyright (C) 2008-2009 Manuel Lauss
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; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #include <linux/dma-mapping.h>
22 #include <linux/gpio.h>
23 #include <linux/i2c.h>
24 #include <linux/init.h>
26 #include <linux/leds.h>
27 #include <linux/mmc/host.h>
28 #include <linux/mtd/mtd.h>
29 #include <linux/mtd/nand.h>
30 #include <linux/mtd/partitions.h>
31 #include <linux/platform_device.h>
32 #include <linux/serial_8250.h>
33 #include <linux/spi/spi.h>
34 #include <linux/spi/flash.h>
35 #include <linux/smc91x.h>
37 #include <asm/mach-au1x00/au1100_mmc.h>
38 #include <asm/mach-au1x00/au1xxx_dbdma.h>
39 #include <asm/mach-au1x00/au1550_spi.h>
40 #include <asm/mach-db1x00/bcsr.h>
41 #include <asm/mach-db1x00/db1200.h>
43 #include "../platform.h"
45 static struct mtd_partition db1200_spiflash_parts
[] = {
47 .name
= "DB1200 SPI flash",
49 .size
= MTDPART_SIZ_FULL
,
53 static struct flash_platform_data db1200_spiflash_data
= {
55 .parts
= db1200_spiflash_parts
,
56 .nr_parts
= ARRAY_SIZE(db1200_spiflash_parts
),
60 static struct spi_board_info db1200_spi_devs
[] __initdata
= {
62 /* TI TMP121AIDBVR temp sensor */
64 .max_speed_hz
= 2000000,
70 /* Spansion S25FL001D0FMA SPI flash */
72 .max_speed_hz
= 50000000,
76 .platform_data
= &db1200_spiflash_data
,
80 static struct i2c_board_info db1200_i2c_devs
[] __initdata
= {
82 /* AT24C04-10 I2C eeprom */
83 I2C_BOARD_INFO("24c04", 0x52),
86 /* Philips NE1619 temp/voltage sensor (adm1025 drv) */
87 I2C_BOARD_INFO("ne1619", 0x2d),
90 /* I2S audio codec WM8731 */
91 I2C_BOARD_INFO("wm8731", 0x1b),
95 /**********************************************************************/
97 static void au1200_nand_cmd_ctrl(struct mtd_info
*mtd
, int cmd
,
100 struct nand_chip
*this = mtd
->priv
;
101 unsigned long ioaddr
= (unsigned long)this->IO_ADDR_W
;
103 ioaddr
&= 0xffffff00;
105 if (ctrl
& NAND_CLE
) {
106 ioaddr
+= MEM_STNAND_CMD
;
107 } else if (ctrl
& NAND_ALE
) {
108 ioaddr
+= MEM_STNAND_ADDR
;
110 /* assume we want to r/w real data by default */
111 ioaddr
+= MEM_STNAND_DATA
;
113 this->IO_ADDR_R
= this->IO_ADDR_W
= (void __iomem
*)ioaddr
;
114 if (cmd
!= NAND_CMD_NONE
) {
115 __raw_writeb(cmd
, this->IO_ADDR_W
);
120 static int au1200_nand_device_ready(struct mtd_info
*mtd
)
122 return __raw_readl((void __iomem
*)MEM_STSTAT
) & 1;
125 static const char *db1200_part_probes
[] = { "cmdlinepart", NULL
};
127 static struct mtd_partition db1200_nand_parts
[] = {
131 .size
= 8 * 1024 * 1024,
135 .offset
= MTDPART_OFS_APPEND
,
136 .size
= MTDPART_SIZ_FULL
140 struct platform_nand_data db1200_nand_platdata
= {
144 .nr_partitions
= ARRAY_SIZE(db1200_nand_parts
),
145 .partitions
= db1200_nand_parts
,
147 .part_probe_types
= db1200_part_probes
,
150 .dev_ready
= au1200_nand_device_ready
,
151 .cmd_ctrl
= au1200_nand_cmd_ctrl
,
155 static struct resource db1200_nand_res
[] = {
157 .start
= DB1200_NAND_PHYS_ADDR
,
158 .end
= DB1200_NAND_PHYS_ADDR
+ 0xff,
159 .flags
= IORESOURCE_MEM
,
163 static struct platform_device db1200_nand_dev
= {
165 .num_resources
= ARRAY_SIZE(db1200_nand_res
),
166 .resource
= db1200_nand_res
,
169 .platform_data
= &db1200_nand_platdata
,
173 /**********************************************************************/
175 static struct smc91x_platdata db1200_eth_data
= {
176 .flags
= SMC91X_NOWAIT
| SMC91X_USE_16BIT
,
177 .leda
= RPC_LED_100_10
,
178 .ledb
= RPC_LED_TX_RX
,
181 static struct resource db1200_eth_res
[] = {
183 .start
= DB1200_ETH_PHYS_ADDR
,
184 .end
= DB1200_ETH_PHYS_ADDR
+ 0xf,
185 .flags
= IORESOURCE_MEM
,
188 .start
= DB1200_ETH_INT
,
189 .end
= DB1200_ETH_INT
,
190 .flags
= IORESOURCE_IRQ
,
194 static struct platform_device db1200_eth_dev
= {
196 .platform_data
= &db1200_eth_data
,
200 .num_resources
= ARRAY_SIZE(db1200_eth_res
),
201 .resource
= db1200_eth_res
,
204 /**********************************************************************/
206 static struct resource db1200_ide_res
[] = {
208 .start
= DB1200_IDE_PHYS_ADDR
,
209 .end
= DB1200_IDE_PHYS_ADDR
+ DB1200_IDE_PHYS_LEN
- 1,
210 .flags
= IORESOURCE_MEM
,
213 .start
= DB1200_IDE_INT
,
214 .end
= DB1200_IDE_INT
,
215 .flags
= IORESOURCE_IRQ
,
219 static u64 ide_dmamask
= DMA_BIT_MASK(32);
221 static struct platform_device db1200_ide_dev
= {
222 .name
= "au1200-ide",
225 .dma_mask
= &ide_dmamask
,
226 .coherent_dma_mask
= DMA_BIT_MASK(32),
228 .num_resources
= ARRAY_SIZE(db1200_ide_res
),
229 .resource
= db1200_ide_res
,
232 /**********************************************************************/
234 static struct platform_device db1200_rtc_dev
= {
235 .name
= "rtc-au1xxx",
239 /**********************************************************************/
241 /* SD carddetects: they're supposed to be edge-triggered, but ack
242 * doesn't seem to work (CPLD Rev 2). Instead, the screaming one
243 * is disabled and its counterpart enabled. The 500ms timeout is
244 * because the carddetect isn't debounced in hardware.
246 static irqreturn_t
db1200_mmc_cd(int irq
, void *ptr
)
248 void(*mmc_cd
)(struct mmc_host
*, unsigned long);
250 if (irq
== DB1200_SD0_INSERT_INT
) {
251 disable_irq_nosync(DB1200_SD0_INSERT_INT
);
252 enable_irq(DB1200_SD0_EJECT_INT
);
254 disable_irq_nosync(DB1200_SD0_EJECT_INT
);
255 enable_irq(DB1200_SD0_INSERT_INT
);
258 /* link against CONFIG_MMC=m */
259 mmc_cd
= symbol_get(mmc_detect_change
);
261 mmc_cd(ptr
, msecs_to_jiffies(500));
262 symbol_put(mmc_detect_change
);
268 static int db1200_mmc_cd_setup(void *mmc_host
, int en
)
273 ret
= request_irq(DB1200_SD0_INSERT_INT
, db1200_mmc_cd
,
274 IRQF_DISABLED
, "sd_insert", mmc_host
);
278 ret
= request_irq(DB1200_SD0_EJECT_INT
, db1200_mmc_cd
,
279 IRQF_DISABLED
, "sd_eject", mmc_host
);
281 free_irq(DB1200_SD0_INSERT_INT
, mmc_host
);
285 if (bcsr_read(BCSR_SIGSTAT
) & BCSR_INT_SD0INSERT
)
286 enable_irq(DB1200_SD0_EJECT_INT
);
288 enable_irq(DB1200_SD0_INSERT_INT
);
291 free_irq(DB1200_SD0_INSERT_INT
, mmc_host
);
292 free_irq(DB1200_SD0_EJECT_INT
, mmc_host
);
299 static void db1200_mmc_set_power(void *mmc_host
, int state
)
302 bcsr_mod(BCSR_BOARD
, 0, BCSR_BOARD_SD0PWR
);
303 msleep(400); /* stabilization time */
305 bcsr_mod(BCSR_BOARD
, BCSR_BOARD_SD0PWR
, 0);
308 static int db1200_mmc_card_readonly(void *mmc_host
)
310 return (bcsr_read(BCSR_STATUS
) & BCSR_STATUS_SD0WP
) ? 1 : 0;
313 static int db1200_mmc_card_inserted(void *mmc_host
)
315 return (bcsr_read(BCSR_SIGSTAT
) & BCSR_INT_SD0INSERT
) ? 1 : 0;
318 static void db1200_mmcled_set(struct led_classdev
*led
,
319 enum led_brightness brightness
)
321 if (brightness
!= LED_OFF
)
322 bcsr_mod(BCSR_LEDS
, BCSR_LEDS_LED0
, 0);
324 bcsr_mod(BCSR_LEDS
, 0, BCSR_LEDS_LED0
);
327 static struct led_classdev db1200_mmc_led
= {
328 .brightness_set
= db1200_mmcled_set
,
331 /* needed by arch/mips/alchemy/common/platform.c */
332 struct au1xmmc_platform_data au1xmmc_platdata
[] = {
334 .cd_setup
= db1200_mmc_cd_setup
,
335 .set_power
= db1200_mmc_set_power
,
336 .card_inserted
= db1200_mmc_card_inserted
,
337 .card_readonly
= db1200_mmc_card_readonly
,
338 .led
= &db1200_mmc_led
,
342 /**********************************************************************/
344 static struct resource au1200_psc0_res
[] = {
346 .start
= PSC0_PHYS_ADDR
,
347 .end
= PSC0_PHYS_ADDR
+ 0x000fffff,
348 .flags
= IORESOURCE_MEM
,
351 .start
= AU1200_PSC0_INT
,
352 .end
= AU1200_PSC0_INT
,
353 .flags
= IORESOURCE_IRQ
,
356 .start
= DSCR_CMD0_PSC0_TX
,
357 .end
= DSCR_CMD0_PSC0_TX
,
358 .flags
= IORESOURCE_DMA
,
361 .start
= DSCR_CMD0_PSC0_RX
,
362 .end
= DSCR_CMD0_PSC0_RX
,
363 .flags
= IORESOURCE_DMA
,
367 static struct platform_device db1200_i2c_dev
= {
368 .name
= "au1xpsc_smbus",
369 .id
= 0, /* bus number */
370 .num_resources
= ARRAY_SIZE(au1200_psc0_res
),
371 .resource
= au1200_psc0_res
,
374 static void db1200_spi_cs_en(struct au1550_spi_info
*spi
, int cs
, int pol
)
377 bcsr_mod(BCSR_RESETS
, 0, BCSR_RESETS_SPISEL
);
379 bcsr_mod(BCSR_RESETS
, BCSR_RESETS_SPISEL
, 0);
382 static struct au1550_spi_info db1200_spi_platdata
= {
383 .mainclk_hz
= 50000000, /* PSC0 clock */
385 .activate_cs
= db1200_spi_cs_en
,
388 static u64 spi_dmamask
= DMA_BIT_MASK(32);
390 static struct platform_device db1200_spi_dev
= {
392 .dma_mask
= &spi_dmamask
,
393 .coherent_dma_mask
= DMA_BIT_MASK(32),
394 .platform_data
= &db1200_spi_platdata
,
396 .name
= "au1550-spi",
397 .id
= 0, /* bus number */
398 .num_resources
= ARRAY_SIZE(au1200_psc0_res
),
399 .resource
= au1200_psc0_res
,
402 static struct resource au1200_psc1_res
[] = {
404 .start
= PSC1_PHYS_ADDR
,
405 .end
= PSC1_PHYS_ADDR
+ 0x000fffff,
406 .flags
= IORESOURCE_MEM
,
409 .start
= AU1200_PSC1_INT
,
410 .end
= AU1200_PSC1_INT
,
411 .flags
= IORESOURCE_IRQ
,
414 .start
= DSCR_CMD0_PSC1_TX
,
415 .end
= DSCR_CMD0_PSC1_TX
,
416 .flags
= IORESOURCE_DMA
,
419 .start
= DSCR_CMD0_PSC1_RX
,
420 .end
= DSCR_CMD0_PSC1_RX
,
421 .flags
= IORESOURCE_DMA
,
425 /* AC97 or I2S device */
426 static struct platform_device db1200_audio_dev
= {
427 /* name assigned later based on switch setting */
428 .id
= 1, /* PSC ID */
429 .num_resources
= ARRAY_SIZE(au1200_psc1_res
),
430 .resource
= au1200_psc1_res
,
433 /* DB1200 ASoC card device */
434 static struct platform_device db1200_sound_dev
= {
435 /* name assigned later based on switch setting */
436 .id
= 1, /* PSC ID */
439 static struct platform_device db1200_stac_dev
= {
440 .name
= "ac97-codec",
441 .id
= 1, /* on PSC1 */
444 static struct platform_device db1200_audiodma_dev
= {
445 .name
= "au1xpsc-pcm",
446 .id
= 1, /* PSC ID */
449 static struct platform_device
*db1200_devs
[] __initdata
= {
450 NULL
, /* PSC0, selected by S6.8 */
455 &db1200_audiodma_dev
,
461 static int __init
db1200_dev_init(void)
467 i2c_register_board_info(0, db1200_i2c_devs
,
468 ARRAY_SIZE(db1200_i2c_devs
));
469 spi_register_board_info(db1200_spi_devs
,
470 ARRAY_SIZE(db1200_i2c_devs
));
472 /* SWITCHES: S6.8 I2C/SPI selector (OFF=I2C ON=SPI)
473 * S6.7 AC97/I2S selector (OFF=AC97 ON=I2S)
476 /* NOTE: GPIO215 controls OTG VBUS supply. In SPI mode however
477 * this pin is claimed by PSC0 (unused though, but pinmux doesn't
478 * allow to free it without crippling the SPI interface).
479 * As a result, in SPI mode, OTG simply won't work (PSC0 uses
480 * it as an input pin which is pulled high on the boards).
482 pfc
= __raw_readl((void __iomem
*)SYS_PINFUNC
) & ~SYS_PINFUNC_P0A
;
484 /* switch off OTG VBUS supply */
485 gpio_request(215, "otg-vbus");
486 gpio_direction_output(215, 1);
488 printk(KERN_INFO
"DB1200 device configuration:\n");
490 sw
= bcsr_read(BCSR_SWITCHES
);
491 if (sw
& BCSR_SWITCHES_DIP_8
) {
492 db1200_devs
[0] = &db1200_i2c_dev
;
493 bcsr_mod(BCSR_RESETS
, BCSR_RESETS_PSC0MUX
, 0);
495 pfc
|= (2 << 17); /* GPIO2 block owns GPIO215 */
497 printk(KERN_INFO
" S6.8 OFF: PSC0 mode I2C\n");
498 printk(KERN_INFO
" OTG port VBUS supply available!\n");
500 db1200_devs
[0] = &db1200_spi_dev
;
501 bcsr_mod(BCSR_RESETS
, 0, BCSR_RESETS_PSC0MUX
);
503 pfc
|= (1 << 17); /* PSC0 owns GPIO215 */
505 printk(KERN_INFO
" S6.8 ON : PSC0 mode SPI\n");
506 printk(KERN_INFO
" OTG port VBUS supply disabled\n");
508 __raw_writel(pfc
, (void __iomem
*)SYS_PINFUNC
);
511 /* Audio: DIP7 selects I2S(0)/AC97(1), but need I2C for I2S!
512 * so: DIP7=1 || DIP8=0 => AC97, DIP7=0 && DIP8=1 => I2S
514 sw
&= BCSR_SWITCHES_DIP_8
| BCSR_SWITCHES_DIP_7
;
515 if (sw
== BCSR_SWITCHES_DIP_8
) {
516 bcsr_mod(BCSR_RESETS
, 0, BCSR_RESETS_PSC1MUX
);
517 db1200_audio_dev
.name
= "au1xpsc_i2s";
518 db1200_sound_dev
.name
= "db1200-i2s";
519 printk(KERN_INFO
" S6.7 ON : PSC1 mode I2S\n");
521 bcsr_mod(BCSR_RESETS
, BCSR_RESETS_PSC1MUX
, 0);
522 db1200_audio_dev
.name
= "au1xpsc_ac97";
523 db1200_sound_dev
.name
= "db1200-ac97";
524 printk(KERN_INFO
" S6.7 OFF: PSC1 mode AC97\n");
527 /* Audio PSC clock is supplied externally. (FIXME: platdata!!) */
528 __raw_writel(PSC_SEL_CLK_SERCLK
,
529 (void __iomem
*)KSEG1ADDR(PSC1_PHYS_ADDR
) + PSC_SEL_OFFSET
);
532 db1x_register_pcmcia_socket(PCMCIA_ATTR_PHYS_ADDR
,
533 PCMCIA_ATTR_PHYS_ADDR
+ 0x000400000 - 1,
534 PCMCIA_MEM_PHYS_ADDR
,
535 PCMCIA_MEM_PHYS_ADDR
+ 0x000400000 - 1,
537 PCMCIA_IO_PHYS_ADDR
+ 0x000010000 - 1,
539 DB1200_PC0_INSERT_INT
,
540 /*DB1200_PC0_STSCHG_INT*/0,
541 DB1200_PC0_EJECT_INT
,
544 db1x_register_pcmcia_socket(PCMCIA_ATTR_PHYS_ADDR
+ 0x004000000,
545 PCMCIA_ATTR_PHYS_ADDR
+ 0x004400000 - 1,
546 PCMCIA_MEM_PHYS_ADDR
+ 0x004000000,
547 PCMCIA_MEM_PHYS_ADDR
+ 0x004400000 - 1,
548 PCMCIA_IO_PHYS_ADDR
+ 0x004000000,
549 PCMCIA_IO_PHYS_ADDR
+ 0x004010000 - 1,
551 DB1200_PC1_INSERT_INT
,
552 /*DB1200_PC1_STSCHG_INT*/0,
553 DB1200_PC1_EJECT_INT
,
556 swapped
= bcsr_read(BCSR_STATUS
) & BCSR_STATUS_DB1200_SWAPBOOT
;
557 db1x_register_norflash(64 << 20, 2, swapped
);
559 return platform_add_devices(db1200_devs
, ARRAY_SIZE(db1200_devs
));
561 device_initcall(db1200_dev_init
);
563 /* au1200fb calls these: STERBT EINEN TRAGISCHEN TOD!!! */
564 int board_au1200fb_panel(void)
566 return (bcsr_read(BCSR_SWITCHES
) >> 8) & 0x0f;
569 int board_au1200fb_panel_init(void)
572 bcsr_mod(BCSR_BOARD
, 0, BCSR_BOARD_LCDVEE
| BCSR_BOARD_LCDVDD
|
577 int board_au1200fb_panel_shutdown(void)
580 bcsr_mod(BCSR_BOARD
, BCSR_BOARD_LCDVEE
| BCSR_BOARD_LCDVDD
|
581 BCSR_BOARD_LCDBL
, 0);