1/*
  2 * Copyright (C) 2009 Eric Benard - eric@eukrea.com
  3 *
  4 * Based on pcm038.c which is :
  5 * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
  6 * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
  7 *
  8 * This program is free software; you can redistribute it and/or
  9 * modify it under the terms of the GNU General Public License
 10 * as published by the Free Software Foundation; either version 2
 11 * of the License, or (at your option) any later version.
 12 * This program is distributed in the hope that it will be useful,
 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 15 * GNU General Public License for more details.
 16 *
 17 * You should have received a copy of the GNU General Public License
 18 * along with this program; if not, write to the Free Software
 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 20 * MA 02110-1301, USA.
 21 */
 22
 23#include <linux/i2c.h>
 24#include <linux/io.h>
 25#include <linux/mtd/plat-ram.h>
 26#include <linux/mtd/physmap.h>
 27#include <linux/platform_device.h>
 28#include <linux/serial_8250.h>
 29#include <linux/usb/otg.h>
 30#include <linux/usb/ulpi.h>
 31
 32#include <asm/mach-types.h>
 33#include <asm/mach/arch.h>
 34#include <asm/mach/time.h>
 35#include <asm/mach/map.h>
 36
 37#include "common.h"
 38#include "devices-imx27.h"
 39#include "eukrea-baseboards.h"
 40#include "hardware.h"
 41#include "iomux-mx27.h"
 42#include "ulpi.h"
 43
 44static const int eukrea_cpuimx27_pins[] __initconst = {
 45	/* UART1 */
 46	PE12_PF_UART1_TXD,
 47	PE13_PF_UART1_RXD,
 48	PE14_PF_UART1_CTS,
 49	PE15_PF_UART1_RTS,
 50	/* UART4 */
 51#if defined(CONFIG_MACH_EUKREA_CPUIMX27_USEUART4)
 52	PB26_AF_UART4_RTS,
 53	PB28_AF_UART4_TXD,
 54	PB29_AF_UART4_CTS,
 55	PB31_AF_UART4_RXD,
 56#endif
 57	/* FEC */
 58	PD0_AIN_FEC_TXD0,
 59	PD1_AIN_FEC_TXD1,
 60	PD2_AIN_FEC_TXD2,
 61	PD3_AIN_FEC_TXD3,
 62	PD4_AOUT_FEC_RX_ER,
 63	PD5_AOUT_FEC_RXD1,
 64	PD6_AOUT_FEC_RXD2,
 65	PD7_AOUT_FEC_RXD3,
 66	PD8_AF_FEC_MDIO,
 67	PD9_AIN_FEC_MDC,
 68	PD10_AOUT_FEC_CRS,
 69	PD11_AOUT_FEC_TX_CLK,
 70	PD12_AOUT_FEC_RXD0,
 71	PD13_AOUT_FEC_RX_DV,
 72	PD14_AOUT_FEC_RX_CLK,
 73	PD15_AOUT_FEC_COL,
 74	PD16_AIN_FEC_TX_ER,
 75	PF23_AIN_FEC_TX_EN,
 76	/* I2C1 */
 77	PD17_PF_I2C_DATA,
 78	PD18_PF_I2C_CLK,
 79	/* SDHC2 */
 80#if defined(CONFIG_MACH_EUKREA_CPUIMX27_USESDHC2)
 81	PB4_PF_SD2_D0,
 82	PB5_PF_SD2_D1,
 83	PB6_PF_SD2_D2,
 84	PB7_PF_SD2_D3,
 85	PB8_PF_SD2_CMD,
 86	PB9_PF_SD2_CLK,
 87#endif
 88#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
 89	/* Quad UART's IRQ */
 90	GPIO_PORTB | 22 | GPIO_GPIO | GPIO_IN,
 91	GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN,
 92	GPIO_PORTB | 27 | GPIO_GPIO | GPIO_IN,
 93	GPIO_PORTB | 30 | GPIO_GPIO | GPIO_IN,
 94#endif
 95	/* OTG */
 96	PC7_PF_USBOTG_DATA5,
 97	PC8_PF_USBOTG_DATA6,
 98	PC9_PF_USBOTG_DATA0,
 99	PC10_PF_USBOTG_DATA2,
100	PC11_PF_USBOTG_DATA1,
101	PC12_PF_USBOTG_DATA4,
102	PC13_PF_USBOTG_DATA3,
103	PE0_PF_USBOTG_NXT,
104	PE1_PF_USBOTG_STP,
105	PE2_PF_USBOTG_DIR,
106	PE24_PF_USBOTG_CLK,
107	PE25_PF_USBOTG_DATA7,
108	/* USBH2 */
109	PA0_PF_USBH2_CLK,
110	PA1_PF_USBH2_DIR,
111	PA2_PF_USBH2_DATA7,
112	PA3_PF_USBH2_NXT,
113	PA4_PF_USBH2_STP,
114	PD19_AF_USBH2_DATA4,
115	PD20_AF_USBH2_DATA3,
116	PD21_AF_USBH2_DATA6,
117	PD22_AF_USBH2_DATA0,
118	PD23_AF_USBH2_DATA2,
119	PD24_AF_USBH2_DATA1,
120	PD26_AF_USBH2_DATA5,
121};
122
123static struct physmap_flash_data eukrea_cpuimx27_flash_data = {
124	.width = 2,
125};
126
127static struct resource eukrea_cpuimx27_flash_resource = {
128	.start = 0xc0000000,
129	.end   = 0xc3ffffff,
130	.flags = IORESOURCE_MEM,
131};
132
133static struct platform_device eukrea_cpuimx27_nor_mtd_device = {
134	.name = "physmap-flash",
135	.id = 0,
136	.dev = {
137		.platform_data = &eukrea_cpuimx27_flash_data,
138	},
139	.num_resources = 1,
140	.resource = &eukrea_cpuimx27_flash_resource,
141};
142
143static const struct imxuart_platform_data uart_pdata __initconst = {
144	.flags = IMXUART_HAVE_RTSCTS,
145};
146
147static const struct mxc_nand_platform_data
148cpuimx27_nand_board_info __initconst = {
149	.width = 1,
150	.hw_ecc = 1,
151};
152
153static struct platform_device *platform_devices[] __initdata = {
154	&eukrea_cpuimx27_nor_mtd_device,
155};
156
157static const struct imxi2c_platform_data cpuimx27_i2c1_data __initconst = {
158	.bitrate = 100000,
159};
160
161static struct i2c_board_info eukrea_cpuimx27_i2c_devices[] = {
162	{
163		I2C_BOARD_INFO("pcf8563", 0x51),
164	},
165};
166
167#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
168static struct plat_serial8250_port serial_platform_data[] = {
169	{
170		.mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x200000),
171		/* irq number is run-time assigned */
172		.uartclk = 14745600,
173		.regshift = 1,
174		.iotype = UPIO_MEM,
175		.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
176	}, {
177		.mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x400000),
178		/* irq number is run-time assigned */
179		.uartclk = 14745600,
180		.regshift = 1,
181		.iotype = UPIO_MEM,
182		.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
183	}, {
184		.mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x800000),
185		/* irq number is run-time assigned */
186		.uartclk = 14745600,
187		.regshift = 1,
188		.iotype = UPIO_MEM,
189		.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
190	}, {
191		.mapbase = (unsigned long)(MX27_CS3_BASE_ADDR + 0x1000000),
192		/* irq number is run-time assigned */
193		.uartclk = 14745600,
194		.regshift = 1,
195		.iotype = UPIO_MEM,
196		.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
197	}, {
198	}
199};
200
201static struct platform_device serial_device = {
202	.name = "serial8250",
203	.id = 0,
204	.dev = {
205		.platform_data = serial_platform_data,
206	},
207};
208#endif
209
210static int eukrea_cpuimx27_otg_init(struct platform_device *pdev)
211{
212	return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
213}
214
215static struct mxc_usbh_platform_data otg_pdata __initdata = {
216	.init	= eukrea_cpuimx27_otg_init,
217	.portsc	= MXC_EHCI_MODE_ULPI,
218};
219
220static int eukrea_cpuimx27_usbh2_init(struct platform_device *pdev)
221{
222	return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
223}
224
225static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
226	.init	= eukrea_cpuimx27_usbh2_init,
227	.portsc	= MXC_EHCI_MODE_ULPI,
228};
229
230static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
231	.operating_mode = FSL_USB2_DR_DEVICE,
232	.phy_mode       = FSL_USB2_PHY_ULPI,
233};
234
235static bool otg_mode_host __initdata;
236
237static int __init eukrea_cpuimx27_otg_mode(char *options)
238{
239	if (!strcmp(options, "host"))
240		otg_mode_host = true;
241	else if (!strcmp(options, "device"))
242		otg_mode_host = false;
243	else
244		pr_info("otg_mode neither \"host\" nor \"device\". "
245			"Defaulting to device\n");
246	return 1;
247}
248__setup("otg_mode=", eukrea_cpuimx27_otg_mode);
249
250static void __init eukrea_cpuimx27_init(void)
251{
252	imx27_soc_init();
253
254	mxc_gpio_setup_multiple_pins(eukrea_cpuimx27_pins,
255		ARRAY_SIZE(eukrea_cpuimx27_pins), "CPUIMX27");
256
257	imx27_add_imx_uart0(&uart_pdata);
258
259	imx27_add_mxc_nand(&cpuimx27_nand_board_info);
260
261	i2c_register_board_info(0, eukrea_cpuimx27_i2c_devices,
262				ARRAY_SIZE(eukrea_cpuimx27_i2c_devices));
263
264	imx27_add_imx_i2c(0, &cpuimx27_i2c1_data);
265
266	imx27_add_fec(NULL);
267	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
268	imx27_add_imx2_wdt();
269	imx27_add_mxc_w1();
270
271#if defined(CONFIG_MACH_EUKREA_CPUIMX27_USESDHC2)
272	/* SDHC2 can be used for Wifi */
273	imx27_add_mxc_mmc(1, NULL);
274#endif
275#if defined(CONFIG_MACH_EUKREA_CPUIMX27_USEUART4)
276	/* in which case UART4 is also used for Bluetooth */
277	imx27_add_imx_uart3(&uart_pdata);
278#endif
279
280#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
281	serial_platform_data[0].irq = IMX_GPIO_NR(2, 23);
282	serial_platform_data[1].irq = IMX_GPIO_NR(2, 22);
283	serial_platform_data[2].irq = IMX_GPIO_NR(2, 27);
284	serial_platform_data[3].irq = IMX_GPIO_NR(2, 30);
285	platform_device_register(&serial_device);
286#endif
287
288	if (otg_mode_host) {
289		otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
290				ULPI_OTG_DRVVBUS_EXT);
291		if (otg_pdata.otg)
292			imx27_add_mxc_ehci_otg(&otg_pdata);
293	} else {
294		imx27_add_fsl_usb2_udc(&otg_device_pdata);
295	}
296
297	usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
298			ULPI_OTG_DRVVBUS_EXT);
299	if (usbh2_pdata.otg)
300		imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
301
302#ifdef CONFIG_MACH_EUKREA_MBIMX27_BASEBOARD
303	eukrea_mbimx27_baseboard_init();
304#endif
305}
306
307static void __init eukrea_cpuimx27_timer_init(void)
308{
309	mx27_clocks_init(26000000);
310}
311
312MACHINE_START(EUKREA_CPUIMX27, "EUKREA CPUIMX27")
313	.atag_offset = 0x100,
314	.map_io = mx27_map_io,
315	.init_early = imx27_init_early,
316	.init_irq = mx27_init_irq,
317	.handle_irq = imx27_handle_irq,
318	.init_time	= eukrea_cpuimx27_timer_init,
319	.init_machine = eukrea_cpuimx27_init,
320	.restart	= mxc_restart,
321MACHINE_END