1/*
  2 * Copyright (C) 2010 Eric Benard - eric@eukrea.com
  3 * Copyright (C) 2009 Sascha Hauer, Pengutronix
  4 *
  5 * This program is free software; you can redistribute it and/or modify
  6 * it under the terms of the GNU General Public License as published by
  7 * the Free Software Foundation; either version 2 of the License, or
  8 * (at your option) any later version.
  9 *
 10 * This program is distributed in the hope that it will be useful,
 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 13 * GNU General Public License for more details.
 14 *
 15 * You should have received a copy of the GNU General Public License
 16 * along with this program; if not, write to the Free Software
 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 18 */
 19
 20#include <linux/types.h>
 21#include <linux/init.h>
 22
 23#include <linux/platform_device.h>
 24#include <linux/mtd/physmap.h>
 25#include <linux/memory.h>
 26#include <linux/gpio.h>
 27#include <linux/interrupt.h>
 28#include <linux/delay.h>
 29#include <linux/i2c.h>
 30#include <linux/i2c/tsc2007.h>
 31#include <linux/usb/otg.h>
 32#include <linux/usb/ulpi.h>
 33#include <linux/i2c-gpio.h>
 34
 35#include <asm/mach-types.h>
 36#include <asm/mach/arch.h>
 37#include <asm/mach/time.h>
 38#include <asm/mach/map.h>
 39
 40#include "common.h"
 41#include "devices-imx35.h"
 42#include "eukrea-baseboards.h"
 43#include "hardware.h"
 44#include "iomux-mx35.h"
 45
 46static const struct imxuart_platform_data uart_pdata __initconst = {
 47	.flags = IMXUART_HAVE_RTSCTS,
 48};
 49
 50static const struct imxi2c_platform_data
 51		eukrea_cpuimx35_i2c0_data __initconst = {
 52	.bitrate =		100000,
 53};
 54
 55#define TSC2007_IRQGPIO		IMX_GPIO_NR(3, 2)
 56static int tsc2007_get_pendown_state(struct device *dev)
 57{
 58	return !gpio_get_value(TSC2007_IRQGPIO);
 59}
 60
 61static struct tsc2007_platform_data tsc2007_info = {
 62	.model			= 2007,
 63	.x_plate_ohms		= 180,
 64	.get_pendown_state = tsc2007_get_pendown_state,
 65};
 66
 67static struct i2c_board_info eukrea_cpuimx35_i2c_devices[] = {
 68	{
 69		I2C_BOARD_INFO("pcf8563", 0x51),
 70	}, {
 71		I2C_BOARD_INFO("tsc2007", 0x48),
 72		.platform_data	= &tsc2007_info,
 73		/* irq number is run-time assigned */
 74	},
 75};
 76
 77static iomux_v3_cfg_t eukrea_cpuimx35_pads[] = {
 78	/* UART1 */
 79	MX35_PAD_CTS1__UART1_CTS,
 80	MX35_PAD_RTS1__UART1_RTS,
 81	MX35_PAD_TXD1__UART1_TXD_MUX,
 82	MX35_PAD_RXD1__UART1_RXD_MUX,
 83	/* FEC */
 84	MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
 85	MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
 86	MX35_PAD_FEC_RX_DV__FEC_RX_DV,
 87	MX35_PAD_FEC_COL__FEC_COL,
 88	MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
 89	MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
 90	MX35_PAD_FEC_TX_EN__FEC_TX_EN,
 91	MX35_PAD_FEC_MDC__FEC_MDC,
 92	MX35_PAD_FEC_MDIO__FEC_MDIO,
 93	MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
 94	MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
 95	MX35_PAD_FEC_CRS__FEC_CRS,
 96	MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
 97	MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
 98	MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
 99	MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
100	MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
101	MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
102	/* I2C1 */
103	MX35_PAD_I2C1_CLK__I2C1_SCL,
104	MX35_PAD_I2C1_DAT__I2C1_SDA,
105	/* TSC2007 IRQ */
106	MX35_PAD_ATA_DA2__GPIO3_2,
107};
108
109static const struct mxc_nand_platform_data
110		eukrea_cpuimx35_nand_board_info __initconst = {
111	.width		= 1,
112	.hw_ecc		= 1,
113	.flash_bbt	= 1,
114};
115
116static int eukrea_cpuimx35_otg_init(struct platform_device *pdev)
117{
118	return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
119}
120
121static const struct mxc_usbh_platform_data otg_pdata __initconst = {
122	.init	= eukrea_cpuimx35_otg_init,
123	.portsc	= MXC_EHCI_MODE_UTMI,
124};
125
126static int eukrea_cpuimx35_usbh1_init(struct platform_device *pdev)
127{
128	return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_SINGLE_UNI |
129			MXC_EHCI_INTERNAL_PHY | MXC_EHCI_IPPUE_DOWN);
130}
131
132static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
133	.init	= eukrea_cpuimx35_usbh1_init,
134	.portsc	= MXC_EHCI_MODE_SERIAL,
135};
136
137static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
138	.operating_mode	= FSL_USB2_DR_DEVICE,
139	.phy_mode	= FSL_USB2_PHY_UTMI,
140	.workaround	= FLS_USB2_WORKAROUND_ENGCM09152,
141};
142
143static bool otg_mode_host __initdata;
144
145static int __init eukrea_cpuimx35_otg_mode(char *options)
146{
147	if (!strcmp(options, "host"))
148		otg_mode_host = true;
149	else if (!strcmp(options, "device"))
150		otg_mode_host = false;
151	else
152		pr_info("otg_mode neither \"host\" nor \"device\". "
153			"Defaulting to device\n");
154	return 1;
155}
156__setup("otg_mode=", eukrea_cpuimx35_otg_mode);
157
158/*
159 * Board specific initialization.
160 */
161static void __init eukrea_cpuimx35_init(void)
162{
163	imx35_soc_init();
164
165	mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx35_pads,
166			ARRAY_SIZE(eukrea_cpuimx35_pads));
167
168	imx35_add_fec(NULL);
169	imx35_add_imx2_wdt();
170
171	imx35_add_imx_uart0(&uart_pdata);
172	imx35_add_mxc_nand(&eukrea_cpuimx35_nand_board_info);
173
174	eukrea_cpuimx35_i2c_devices[1].irq = gpio_to_irq(TSC2007_IRQGPIO);
175	i2c_register_board_info(0, eukrea_cpuimx35_i2c_devices,
176			ARRAY_SIZE(eukrea_cpuimx35_i2c_devices));
177	imx35_add_imx_i2c0(&eukrea_cpuimx35_i2c0_data);
178
179	if (otg_mode_host)
180		imx35_add_mxc_ehci_otg(&otg_pdata);
181	else
182		imx35_add_fsl_usb2_udc(&otg_device_pdata);
183
184	imx35_add_mxc_ehci_hs(&usbh1_pdata);
185
186#ifdef CONFIG_MACH_EUKREA_MBIMXSD35_BASEBOARD
187	eukrea_mbimxsd35_baseboard_init();
188#endif
189}
190
191static void __init eukrea_cpuimx35_timer_init(void)
192{
193	mx35_clocks_init();
194}
195
196MACHINE_START(EUKREA_CPUIMX35SD, "Eukrea CPUIMX35")
197	/* Maintainer: Eukrea Electromatique */
198	.atag_offset = 0x100,
199	.map_io = mx35_map_io,
200	.init_early = imx35_init_early,
201	.init_irq = mx35_init_irq,
202	.handle_irq = imx35_handle_irq,
203	.init_time	= eukrea_cpuimx35_timer_init,
204	.init_machine = eukrea_cpuimx35_init,
205	.restart	= mxc_restart,
206MACHINE_END