~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/arch/arm/mach-at91/board-sam9rlek.c

Version: ~ [ linux-5.13-rc7 ] ~ [ linux-5.12.12 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.45 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.127 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.195 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.237 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.273 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.273 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.18.140 ] ~ [ linux-3.16.85 ] ~ [ linux-3.14.79 ] ~ [ linux-3.12.74 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  *  Copyright (C) 2005 SAN People
  3  *  Copyright (C) 2007 Atmel Corporation
  4  *
  5  * This file is subject to the terms and conditions of the GNU General Public
  6  * License.  See the file COPYING in the main directory of this archive for
  7  * more details.
  8  */
  9 
 10 #include <linux/types.h>
 11 #include <linux/gpio.h>
 12 #include <linux/init.h>
 13 #include <linux/mm.h>
 14 #include <linux/module.h>
 15 #include <linux/platform_device.h>
 16 #include <linux/spi/spi.h>
 17 #include <linux/fb.h>
 18 #include <linux/clk.h>
 19 #include <linux/input.h>
 20 #include <linux/gpio_keys.h>
 21 #include <linux/platform_data/at91_adc.h>
 22 
 23 #include <video/atmel_lcdc.h>
 24 
 25 #include <asm/setup.h>
 26 #include <asm/mach-types.h>
 27 #include <asm/irq.h>
 28 
 29 #include <asm/mach/arch.h>
 30 #include <asm/mach/map.h>
 31 #include <asm/mach/irq.h>
 32 
 33 #include <mach/hardware.h>
 34 #include <mach/at91sam9_smc.h>
 35 
 36 
 37 #include "at91_aic.h"
 38 #include "at91_shdwc.h"
 39 #include "board.h"
 40 #include "sam9_smc.h"
 41 #include "generic.h"
 42 #include "gpio.h"
 43 
 44 
 45 static void __init ek_init_early(void)
 46 {
 47         /* Initialize processor: 12.000 MHz crystal */
 48         at91_initialize(12000000);
 49 }
 50 
 51 /*
 52  * USB HS Device port
 53  */
 54 static struct usba_platform_data __initdata ek_usba_udc_data = {
 55         .vbus_pin       = AT91_PIN_PA8,
 56 };
 57 
 58 
 59 /*
 60  * MCI (SD/MMC)
 61  */
 62 static struct mci_platform_data __initdata mci0_data = {
 63         .slot[0] = {
 64                 .bus_width      = 4,
 65                 .detect_pin     = AT91_PIN_PA15,
 66                 .wp_pin         = -EINVAL,
 67         },
 68 };
 69 
 70 
 71 /*
 72  * NAND flash
 73  */
 74 static struct mtd_partition __initdata ek_nand_partition[] = {
 75         {
 76                 .name   = "Partition 1",
 77                 .offset = 0,
 78                 .size   = SZ_256K,
 79         },
 80         {
 81                 .name   = "Partition 2",
 82                 .offset = MTDPART_OFS_NXTBLK,
 83                 .size   = MTDPART_SIZ_FULL,
 84         },
 85 };
 86 
 87 static struct atmel_nand_data __initdata ek_nand_data = {
 88         .ale            = 21,
 89         .cle            = 22,
 90         .det_pin        = -EINVAL,
 91         .rdy_pin        = AT91_PIN_PD17,
 92         .enable_pin     = AT91_PIN_PB6,
 93         .ecc_mode       = NAND_ECC_SOFT,
 94         .on_flash_bbt   = 1,
 95         .parts          = ek_nand_partition,
 96         .num_parts      = ARRAY_SIZE(ek_nand_partition),
 97 };
 98 
 99 static struct sam9_smc_config __initdata ek_nand_smc_config = {
100         .ncs_read_setup         = 0,
101         .nrd_setup              = 1,
102         .ncs_write_setup        = 0,
103         .nwe_setup              = 1,
104 
105         .ncs_read_pulse         = 3,
106         .nrd_pulse              = 3,
107         .ncs_write_pulse        = 3,
108         .nwe_pulse              = 3,
109 
110         .read_cycle             = 5,
111         .write_cycle            = 5,
112 
113         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
114         .tdf_cycles             = 2,
115 };
116 
117 static void __init ek_add_device_nand(void)
118 {
119         /* configure chip-select 3 (NAND) */
120         sam9_smc_configure(0, 3, &ek_nand_smc_config);
121 
122         at91_add_device_nand(&ek_nand_data);
123 }
124 
125 
126 /*
127  * SPI devices
128  */
129 static struct spi_board_info ek_spi_devices[] = {
130         {       /* DataFlash chip */
131                 .modalias       = "mtd_dataflash",
132                 .chip_select    = 0,
133                 .max_speed_hz   = 15 * 1000 * 1000,
134                 .bus_num        = 0,
135         },
136 };
137 
138 
139 /*
140  * LCD Controller
141  */
142 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
143 static struct fb_videomode at91_tft_vga_modes[] = {
144         {
145                 .name           = "TX09D50VM1CCA @ 60",
146                 .refresh        = 60,
147                 .xres           = 240,          .yres           = 320,
148                 .pixclock       = KHZ2PICOS(4965),
149 
150                 .left_margin    = 1,            .right_margin   = 33,
151                 .upper_margin   = 1,            .lower_margin   = 0,
152                 .hsync_len      = 5,            .vsync_len      = 1,
153 
154                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
155                 .vmode          = FB_VMODE_NONINTERLACED,
156         },
157 };
158 
159 static struct fb_monspecs at91fb_default_monspecs = {
160         .manufacturer   = "HIT",
161         .monitor        = "TX09D50VM1CCA",
162 
163         .modedb         = at91_tft_vga_modes,
164         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
165         .hfmin          = 15000,
166         .hfmax          = 64000,
167         .vfmin          = 50,
168         .vfmax          = 150,
169 };
170 
171 #define AT91SAM9RL_DEFAULT_LCDCON2      (ATMEL_LCDC_MEMOR_LITTLE \
172                                         | ATMEL_LCDC_DISTYPE_TFT \
173                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
174 
175 static void at91_lcdc_power_control(struct atmel_lcdfb_pdata *pdata, int on)
176 {
177         if (on)
178                 at91_set_gpio_value(AT91_PIN_PC1, 0);   /* power up */
179         else
180                 at91_set_gpio_value(AT91_PIN_PC1, 1);   /* power down */
181 }
182 
183 /* Driver datas */
184 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
185         .lcdcon_is_backlight            = true,
186         .default_bpp                    = 16,
187         .default_dmacon                 = ATMEL_LCDC_DMAEN,
188         .default_lcdcon2                = AT91SAM9RL_DEFAULT_LCDCON2,
189         .default_monspecs               = &at91fb_default_monspecs,
190         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
191         .guard_time                     = 1,
192         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
193 };
194 
195 #else
196 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
197 #endif
198 
199 
200 /*
201  * AC97
202  * reset_pin is not connected: NRST
203  */
204 static struct ac97c_platform_data ek_ac97_data = {
205         .reset_pin      = -EINVAL,
206 };
207 
208 
209 /*
210  * LEDs
211  */
212 static struct gpio_led ek_leds[] = {
213         {       /* "bottom" led, green, userled1 to be defined */
214                 .name                   = "ds1",
215                 .gpio                   = AT91_PIN_PD15,
216                 .active_low             = 1,
217                 .default_trigger        = "none",
218         },
219         {       /* "bottom" led, green, userled2 to be defined */
220                 .name                   = "ds2",
221                 .gpio                   = AT91_PIN_PD16,
222                 .active_low             = 1,
223                 .default_trigger        = "none",
224         },
225         {       /* "power" led, yellow */
226                 .name                   = "ds3",
227                 .gpio                   = AT91_PIN_PD14,
228                 .default_trigger        = "heartbeat",
229         }
230 };
231 
232 
233 /*
234  * ADC + Touchscreen
235  */
236 static struct at91_adc_data ek_adc_data = {
237         .channels_used = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5),
238         .use_external_triggers = true,
239         .vref = 3300,
240         .touchscreen_type = ATMEL_ADC_TOUCHSCREEN_4WIRE,
241 };
242 
243 
244 /*
245  * GPIO Buttons
246  */
247 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
248 static struct gpio_keys_button ek_buttons[] = {
249         {
250                 .gpio           = AT91_PIN_PB0,
251                 .code           = BTN_2,
252                 .desc           = "Right Click",
253                 .active_low     = 1,
254                 .wakeup         = 1,
255         },
256         {
257                 .gpio           = AT91_PIN_PB1,
258                 .code           = BTN_1,
259                 .desc           = "Left Click",
260                 .active_low     = 1,
261                 .wakeup         = 1,
262         }
263 };
264 
265 static struct gpio_keys_platform_data ek_button_data = {
266         .buttons        = ek_buttons,
267         .nbuttons       = ARRAY_SIZE(ek_buttons),
268 };
269 
270 static struct platform_device ek_button_device = {
271         .name           = "gpio-keys",
272         .id             = -1,
273         .num_resources  = 0,
274         .dev            = {
275                 .platform_data  = &ek_button_data,
276         }
277 };
278 
279 static void __init ek_add_device_buttons(void)
280 {
281         at91_set_gpio_input(AT91_PIN_PB1, 1);   /* btn1 */
282         at91_set_deglitch(AT91_PIN_PB1, 1);
283         at91_set_gpio_input(AT91_PIN_PB0, 1);   /* btn2 */
284         at91_set_deglitch(AT91_PIN_PB0, 1);
285 
286         platform_device_register(&ek_button_device);
287 }
288 #else
289 static void __init ek_add_device_buttons(void) {}
290 #endif
291 
292 
293 static void __init ek_board_init(void)
294 {
295         /* Serial */
296         /* DBGU on ttyS0. (Rx & Tx only) */
297         at91_register_uart(0, 0, 0);
298 
299         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
300         at91_register_uart(AT91SAM9RL_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
301         at91_add_device_serial();
302         /* USB HS */
303         at91_add_device_usba(&ek_usba_udc_data);
304         /* I2C */
305         at91_add_device_i2c(NULL, 0);
306         /* NAND */
307         ek_add_device_nand();
308         /* SPI */
309         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
310         /* MMC */
311         at91_add_device_mci(0, &mci0_data);
312         /* LCD Controller */
313         at91_add_device_lcdc(&ek_lcdc_data);
314         /* AC97 */
315         at91_add_device_ac97(&ek_ac97_data);
316         /* Touch Screen Controller + ADC */
317         at91_add_device_adc(&ek_adc_data);
318         /* LEDs */
319         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
320         /* Push Buttons */
321         ek_add_device_buttons();
322 }
323 
324 MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")
325         /* Maintainer: Atmel */
326         .init_time      = at91sam926x_pit_init,
327         .map_io         = at91_map_io,
328         .handle_irq     = at91_aic_handle_irq,
329         .init_early     = ek_init_early,
330         .init_irq       = at91_init_irq_default,
331         .init_machine   = ek_board_init,
332 MACHINE_END
333 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp