2 * Copyright (C) 2000 Deep Blue Solutions Ltd
3 * Copyright (C) 2002 Shane Nay (shane@minirl.com)
4 * Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include <linux/platform_device.h>
22 #include <linux/mtd/mtd.h>
23 #include <linux/mtd/map.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/mtd/physmap.h>
26 #include <linux/i2c.h>
27 #include <linux/irq.h>
28 #include <mach/common.h>
29 #include <mach/hardware.h>
30 #include <asm/mach-types.h>
31 #include <asm/mach/arch.h>
32 #include <asm/mach/time.h>
33 #include <asm/mach/map.h>
34 #include <mach/gpio.h>
35 #include <mach/imx-uart.h>
36 #include <mach/iomux.h>
37 #include <mach/board-mx27ads.h>
38 #include <mach/mxc_nand.h>
40 #include <mach/imxfb.h>
45 static unsigned int mx27ads_pins[] = {
144 static struct mxc_nand_platform_data mx27ads_nand_board_info = {
149 /* ADS's NOR flash */
150 static struct physmap_flash_data mx27ads_flash_data = {
154 static struct resource mx27ads_flash_resource = {
156 .end = 0xc0000000 + 0x02000000 - 1,
157 .flags = IORESOURCE_MEM,
161 static struct platform_device mx27ads_nor_mtd_device = {
162 .name = "physmap-flash",
165 .platform_data = &mx27ads_flash_data,
168 .resource = &mx27ads_flash_resource,
171 static struct imxi2c_platform_data mx27ads_i2c_data = {
175 static struct i2c_board_info mx27ads_i2c_devices[] = {
178 void lcd_power(int on)
181 __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_SET_REG);
183 __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_CLEAR_REG);
186 static struct imx_fb_videomode mx27ads_modes[] = {
189 .name = "Sharp-LQ035Q7",
193 .pixclock = 188679, /* in ps (5.3MHz) */
206 static struct imx_fb_platform_data mx27ads_fb_data = {
207 .mode = mx27ads_modes,
208 .num_modes = ARRAY_SIZE(mx27ads_modes),
211 * - HSYNC active high
212 * - VSYNC active high
213 * - clk notenabled while idle
215 * - data not inverted
216 * - data enable low active
217 * - enable sharp mode
223 .lcd_power = lcd_power,
226 static int mx27ads_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
229 return request_irq(IRQ_GPIOE(21), detect_irq, IRQF_TRIGGER_RISING,
230 "sdhc1-card-detect", data);
233 static int mx27ads_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
236 return request_irq(IRQ_GPIOB(7), detect_irq, IRQF_TRIGGER_RISING,
237 "sdhc2-card-detect", data);
240 static void mx27ads_sdhc1_exit(struct device *dev, void *data)
242 free_irq(IRQ_GPIOE(21), data);
245 static void mx27ads_sdhc2_exit(struct device *dev, void *data)
247 free_irq(IRQ_GPIOB(7), data);
250 static struct imxmmc_platform_data sdhc1_pdata = {
251 .init = mx27ads_sdhc1_init,
252 .exit = mx27ads_sdhc1_exit,
255 static struct imxmmc_platform_data sdhc2_pdata = {
256 .init = mx27ads_sdhc2_init,
257 .exit = mx27ads_sdhc2_exit,
260 static struct platform_device *platform_devices[] __initdata = {
261 &mx27ads_nor_mtd_device,
263 &mxc_w1_master_device,
266 static struct imxuart_platform_data uart_pdata[] = {
268 .flags = IMXUART_HAVE_RTSCTS,
270 .flags = IMXUART_HAVE_RTSCTS,
272 .flags = IMXUART_HAVE_RTSCTS,
274 .flags = IMXUART_HAVE_RTSCTS,
276 .flags = IMXUART_HAVE_RTSCTS,
278 .flags = IMXUART_HAVE_RTSCTS,
282 static void __init mx27ads_board_init(void)
284 mxc_gpio_setup_multiple_pins(mx27ads_pins, ARRAY_SIZE(mx27ads_pins),
287 mxc_register_device(&mxc_uart_device0, &uart_pdata[0]);
288 mxc_register_device(&mxc_uart_device1, &uart_pdata[1]);
289 mxc_register_device(&mxc_uart_device2, &uart_pdata[2]);
290 mxc_register_device(&mxc_uart_device3, &uart_pdata[3]);
291 mxc_register_device(&mxc_uart_device4, &uart_pdata[4]);
292 mxc_register_device(&mxc_uart_device5, &uart_pdata[5]);
293 mxc_register_device(&mxc_nand_device, &mx27ads_nand_board_info);
295 /* only the i2c master 1 is used on this CPU card */
296 i2c_register_board_info(1, mx27ads_i2c_devices,
297 ARRAY_SIZE(mx27ads_i2c_devices));
298 mxc_register_device(&mxc_i2c_device1, &mx27ads_i2c_data);
299 mxc_register_device(&mxc_fb_device, &mx27ads_fb_data);
300 mxc_register_device(&mxc_sdhc_device0, &sdhc1_pdata);
301 mxc_register_device(&mxc_sdhc_device1, &sdhc2_pdata);
303 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
306 static void __init mx27ads_timer_init(void)
308 unsigned long fref = 26000000;
310 if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
313 mx27_clocks_init(fref);
316 static struct sys_timer mx27ads_timer = {
317 .init = mx27ads_timer_init,
320 static struct map_desc mx27ads_io_desc[] __initdata = {
322 .virtual = PBC_BASE_ADDRESS,
323 .pfn = __phys_to_pfn(CS4_BASE_ADDR),
329 static void __init mx27ads_map_io(void)
332 iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc));
335 MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
336 /* maintainer: Freescale Semiconductor, Inc. */
337 .phys_io = AIPI_BASE_ADDR,
338 .io_pg_offst = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
339 .boot_params = PHYS_OFFSET + 0x100,
340 .map_io = mx27ads_map_io,
341 .init_irq = mx27_init_irq,
342 .init_machine = mx27ads_board_init,
343 .timer = &mx27ads_timer,