2 * Board Info File for the BlackStamp
4 * Copyright 2004-2008 Analog Devices Inc.
5 * 2008 Benjamin Matthews <bmat@lle.rochester.edu>
6 * 2005 National ICT Australia (NICTA)
7 * Aidan Williams <aidan@nicta.com.au>
9 * More info about the BlackStamp at:
10 * http://blackfin.uclinux.org/gf/project/blackstamp/
12 * Licensed under the GPL-2 or later.
15 #include <linux/device.h>
16 #include <linux/platform_device.h>
17 #include <linux/mtd/mtd.h>
18 #include <linux/mtd/partitions.h>
19 #include <linux/mtd/physmap.h>
20 #include <linux/spi/spi.h>
21 #include <linux/spi/flash.h>
22 #include <linux/irq.h>
23 #include <linux/gpio.h>
24 #include <linux/i2c.h>
25 #include <linux/gpio/machine.h>
27 #include <asm/bfin5xx_spi.h>
28 #include <asm/portmux.h>
32 * Name the Board for the /proc/cpuinfo
34 const char bfin_board_name
[] = "BlackStamp";
36 #if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
37 static struct platform_device rtc_device
= {
44 * Driver needs to know address, irq and flag pin.
46 #if IS_ENABLED(CONFIG_SMC91X)
47 #include <linux/smc91x.h>
49 static struct smc91x_platdata smc91x_info
= {
50 .flags
= SMC91X_USE_16BIT
| SMC91X_NOWAIT
,
51 .leda
= RPC_LED_100_10
,
52 .ledb
= RPC_LED_TX_RX
,
55 static struct resource smc91x_resources
[] = {
57 .name
= "smc91x-regs",
59 .end
= 0x20300300 + 16,
60 .flags
= IORESOURCE_MEM
,
64 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHLEVEL
,
68 static struct platform_device smc91x_device
= {
71 .num_resources
= ARRAY_SIZE(smc91x_resources
),
72 .resource
= smc91x_resources
,
74 .platform_data
= &smc91x_info
,
79 #if IS_ENABLED(CONFIG_MTD_M25P80)
80 static struct mtd_partition bfin_spi_flash_partitions
[] = {
82 .name
= "bootloader(spi)",
85 .mask_flags
= MTD_CAP_ROM
87 .name
= "linux kernel(spi)",
89 .offset
= MTDPART_OFS_APPEND
,
91 .name
= "file system(spi)",
92 .size
= MTDPART_SIZ_FULL
,
93 .offset
= MTDPART_OFS_APPEND
,
97 static struct flash_platform_data bfin_spi_flash_data
= {
99 .parts
= bfin_spi_flash_partitions
,
100 .nr_parts
= ARRAY_SIZE(bfin_spi_flash_partitions
),
104 /* SPI flash chip (m25p64) */
105 static struct bfin5xx_spi_chip spi_flash_chip_info
= {
106 .enable_dma
= 0, /* use dma transfer with this chip*/
110 #if IS_ENABLED(CONFIG_MMC_SPI)
111 static struct bfin5xx_spi_chip mmc_spi_chip_info
= {
116 static struct spi_board_info bfin_spi_board_info
[] __initdata
= {
117 #if IS_ENABLED(CONFIG_MTD_M25P80)
119 /* the modalias must be the same as spi device driver name */
120 .modalias
= "m25p80", /* Name of spi_driver for this device */
121 .max_speed_hz
= 20000000, /* max spi clock (SCK) speed in HZ */
122 .bus_num
= 0, /* Framework bus number */
123 .chip_select
= 2, /* Framework chip select. */
124 .platform_data
= &bfin_spi_flash_data
,
125 .controller_data
= &spi_flash_chip_info
,
130 #if IS_ENABLED(CONFIG_MMC_SPI)
132 .modalias
= "mmc_spi",
133 .max_speed_hz
= 20000000, /* max spi clock (SCK) speed in HZ */
136 .controller_data
= &mmc_spi_chip_info
,
141 #if IS_ENABLED(CONFIG_SPI_SPIDEV)
143 .modalias
= "spidev",
144 .max_speed_hz
= 3125000, /* max spi clock (SCK) speed in HZ */
151 #if IS_ENABLED(CONFIG_SPI_BFIN5XX)
153 static struct resource bfin_spi0_resource
[] = {
155 .start
= SPI0_REGBASE
,
156 .end
= SPI0_REGBASE
+ 0xFF,
157 .flags
= IORESOURCE_MEM
,
162 .flags
= IORESOURCE_DMA
,
167 .flags
= IORESOURCE_IRQ
,
171 /* SPI controller data */
172 static struct bfin5xx_spi_master bfin_spi0_info
= {
174 .enable_dma
= 1, /* master has the ability to do dma transfer */
175 .pin_req
= {P_SPI0_SCK
, P_SPI0_MISO
, P_SPI0_MOSI
, 0},
178 static struct platform_device bfin_spi0_device
= {
180 .id
= 0, /* Bus number */
181 .num_resources
= ARRAY_SIZE(bfin_spi0_resource
),
182 .resource
= bfin_spi0_resource
,
184 .platform_data
= &bfin_spi0_info
, /* Passed to driver */
187 #endif /* spi master and devices */
189 #if IS_ENABLED(CONFIG_SERIAL_BFIN)
190 #ifdef CONFIG_SERIAL_BFIN_UART0
191 static struct resource bfin_uart0_resources
[] = {
193 .start
= BFIN_UART_THR
,
194 .end
= BFIN_UART_GCTL
+2,
195 .flags
= IORESOURCE_MEM
,
198 .start
= IRQ_UART0_TX
,
200 .flags
= IORESOURCE_IRQ
,
203 .start
= IRQ_UART0_RX
,
205 .flags
= IORESOURCE_IRQ
,
208 .start
= IRQ_UART0_ERROR
,
209 .end
= IRQ_UART0_ERROR
,
210 .flags
= IORESOURCE_IRQ
,
213 .start
= CH_UART0_TX
,
215 .flags
= IORESOURCE_DMA
,
218 .start
= CH_UART0_RX
,
220 .flags
= IORESOURCE_DMA
,
224 static unsigned short bfin_uart0_peripherals
[] = {
225 P_UART0_TX
, P_UART0_RX
, 0
228 static struct platform_device bfin_uart0_device
= {
231 .num_resources
= ARRAY_SIZE(bfin_uart0_resources
),
232 .resource
= bfin_uart0_resources
,
234 .platform_data
= &bfin_uart0_peripherals
, /* Passed to driver */
240 #if IS_ENABLED(CONFIG_BFIN_SIR)
241 #ifdef CONFIG_BFIN_SIR0
242 static struct resource bfin_sir0_resources
[] = {
246 .flags
= IORESOURCE_MEM
,
249 .start
= IRQ_UART0_RX
,
250 .end
= IRQ_UART0_RX
+1,
251 .flags
= IORESOURCE_IRQ
,
254 .start
= CH_UART0_RX
,
255 .end
= CH_UART0_RX
+1,
256 .flags
= IORESOURCE_DMA
,
260 static struct platform_device bfin_sir0_device
= {
263 .num_resources
= ARRAY_SIZE(bfin_sir0_resources
),
264 .resource
= bfin_sir0_resources
,
269 #if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
270 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
271 static struct resource bfin_sport0_uart_resources
[] = {
273 .start
= SPORT0_TCR1
,
274 .end
= SPORT0_MRCS3
+4,
275 .flags
= IORESOURCE_MEM
,
278 .start
= IRQ_SPORT0_RX
,
279 .end
= IRQ_SPORT0_RX
+1,
280 .flags
= IORESOURCE_IRQ
,
283 .start
= IRQ_SPORT0_ERROR
,
284 .end
= IRQ_SPORT0_ERROR
,
285 .flags
= IORESOURCE_IRQ
,
289 static unsigned short bfin_sport0_peripherals
[] = {
290 P_SPORT0_TFS
, P_SPORT0_DTPRI
, P_SPORT0_TSCLK
, P_SPORT0_RFS
,
291 P_SPORT0_DRPRI
, P_SPORT0_RSCLK
, 0
294 static struct platform_device bfin_sport0_uart_device
= {
295 .name
= "bfin-sport-uart",
297 .num_resources
= ARRAY_SIZE(bfin_sport0_uart_resources
),
298 .resource
= bfin_sport0_uart_resources
,
300 .platform_data
= &bfin_sport0_peripherals
, /* Passed to driver */
304 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
305 static struct resource bfin_sport1_uart_resources
[] = {
307 .start
= SPORT1_TCR1
,
308 .end
= SPORT1_MRCS3
+4,
309 .flags
= IORESOURCE_MEM
,
312 .start
= IRQ_SPORT1_RX
,
313 .end
= IRQ_SPORT1_RX
+1,
314 .flags
= IORESOURCE_IRQ
,
317 .start
= IRQ_SPORT1_ERROR
,
318 .end
= IRQ_SPORT1_ERROR
,
319 .flags
= IORESOURCE_IRQ
,
323 static unsigned short bfin_sport1_peripherals
[] = {
324 P_SPORT1_TFS
, P_SPORT1_DTPRI
, P_SPORT1_TSCLK
, P_SPORT1_RFS
,
325 P_SPORT1_DRPRI
, P_SPORT1_RSCLK
, 0
328 static struct platform_device bfin_sport1_uart_device
= {
329 .name
= "bfin-sport-uart",
331 .num_resources
= ARRAY_SIZE(bfin_sport1_uart_resources
),
332 .resource
= bfin_sport1_uart_resources
,
334 .platform_data
= &bfin_sport1_peripherals
, /* Passed to driver */
340 #if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
341 #include <linux/input.h>
342 #include <linux/gpio_keys.h>
344 static struct gpio_keys_button bfin_gpio_keys_table
[] = {
345 {BTN_0
, GPIO_PF4
, 0, "gpio-keys: BTN0"},
346 {BTN_1
, GPIO_PF5
, 0, "gpio-keys: BTN1"},
347 {BTN_2
, GPIO_PF6
, 0, "gpio-keys: BTN2"},
348 }; /* Mapped to the first three PF Test Points */
350 static struct gpio_keys_platform_data bfin_gpio_keys_data
= {
351 .buttons
= bfin_gpio_keys_table
,
352 .nbuttons
= ARRAY_SIZE(bfin_gpio_keys_table
),
355 static struct platform_device bfin_device_gpiokeys
= {
358 .platform_data
= &bfin_gpio_keys_data
,
363 #if IS_ENABLED(CONFIG_I2C_GPIO)
364 #include <linux/i2c-gpio.h>
366 static struct gpiod_lookup_table bfin_i2c_gpiod_table
= {
367 .dev_id
= "i2c-gpio",
369 GPIO_LOOKUP_IDX("BFIN-GPIO", GPIO_PF8
, NULL
, 0,
370 GPIO_ACTIVE_HIGH
| GPIO_OPEN_DRAIN
),
371 GPIO_LOOKUP_IDX("BFIN-GPIO", GPIO_PF9
, NULL
, 1,
372 GPIO_ACTIVE_HIGH
| GPIO_OPEN_DRAIN
),
376 static struct i2c_gpio_platform_data i2c_gpio_data
= {
378 }; /* This hasn't actually been used these pins
379 * are (currently) free pins on the expansion connector */
381 static struct platform_device i2c_gpio_device
= {
385 .platform_data
= &i2c_gpio_data
,
390 static struct i2c_board_info __initdata bfin_i2c_board_info
[] = {
393 static const unsigned int cclk_vlev_datasheet
[] =
395 VRPAIR(VLEV_085
, 250000000),
396 VRPAIR(VLEV_090
, 376000000),
397 VRPAIR(VLEV_095
, 426000000),
398 VRPAIR(VLEV_100
, 426000000),
399 VRPAIR(VLEV_105
, 476000000),
400 VRPAIR(VLEV_110
, 476000000),
401 VRPAIR(VLEV_115
, 476000000),
402 VRPAIR(VLEV_120
, 600000000),
403 VRPAIR(VLEV_125
, 600000000),
404 VRPAIR(VLEV_130
, 600000000),
407 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data
= {
408 .tuple_tab
= cclk_vlev_datasheet
,
409 .tabsize
= ARRAY_SIZE(cclk_vlev_datasheet
),
410 .vr_settling_time
= 25 /* us */,
413 static struct platform_device bfin_dpmc
= {
416 .platform_data
= &bfin_dmpc_vreg_data
,
420 static struct platform_device
*stamp_devices
[] __initdata
= {
424 #if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
428 #if IS_ENABLED(CONFIG_SMC91X)
433 #if IS_ENABLED(CONFIG_SPI_BFIN5XX)
437 #if IS_ENABLED(CONFIG_SERIAL_BFIN)
438 #ifdef CONFIG_SERIAL_BFIN_UART0
443 #if IS_ENABLED(CONFIG_BFIN_SIR)
444 #ifdef CONFIG_BFIN_SIR0
449 #if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
450 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
451 &bfin_sport0_uart_device
,
453 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
454 &bfin_sport1_uart_device
,
458 #if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
459 &bfin_device_gpiokeys
,
462 #if IS_ENABLED(CONFIG_I2C_GPIO)
467 static int __init
blackstamp_init(void)
471 printk(KERN_INFO
"%s(): registering device resources\n", __func__
);
472 #if IS_ENABLED(CONFIG_I2C_GPIO)
473 gpiod_add_lookup_table(&bfin_i2c_gpiod_table
);
475 i2c_register_board_info(0, bfin_i2c_board_info
,
476 ARRAY_SIZE(bfin_i2c_board_info
));
478 ret
= platform_add_devices(stamp_devices
, ARRAY_SIZE(stamp_devices
));
482 #if IS_ENABLED(CONFIG_SMC91X)
484 * setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC.
485 * the bfin-async-map driver takes care of flipping between
486 * flash and ethernet when necessary.
488 ret
= gpio_request(GPIO_PF0
, "enet_cpld");
490 gpio_direction_output(GPIO_PF0
, 1);
495 spi_register_board_info(bfin_spi_board_info
, ARRAY_SIZE(bfin_spi_board_info
));
499 arch_initcall(blackstamp_init
);
501 static struct platform_device
*stamp_early_devices
[] __initdata
= {
502 #if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
503 #ifdef CONFIG_SERIAL_BFIN_UART0
508 #if defined(CONFIG_SERIAL_BFIN_SPORT_CONSOLE)
509 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
510 &bfin_sport0_uart_device
,
512 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
513 &bfin_sport1_uart_device
,
518 void __init
native_machine_early_platform_add_devices(void)
520 printk(KERN_INFO
"register early platform devices\n");
521 early_platform_add_devices(stamp_early_devices
,
522 ARRAY_SIZE(stamp_early_devices
));