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 "ehci.h"
43#include "eukrea-baseboards.h"
44#include "hardware.h"
45#include "iomux-mx35.h"
46
47static const struct imxuart_platform_data uart_pdata __initconst = {
48	.flags = IMXUART_HAVE_RTSCTS,
49};
50
51static const struct imxi2c_platform_data
52		eukrea_cpuimx35_i2c0_data __initconst = {
53	.bitrate =		100000,
54};
55
56#define TSC2007_IRQGPIO		IMX_GPIO_NR(3, 2)
57static int tsc2007_get_pendown_state(struct device *dev)
58{
59	return !gpio_get_value(TSC2007_IRQGPIO);
60}
61
62static struct tsc2007_platform_data tsc2007_info = {
63	.model			= 2007,
64	.x_plate_ohms		= 180,
65	.get_pendown_state = tsc2007_get_pendown_state,
66};
67
68static struct i2c_board_info eukrea_cpuimx35_i2c_devices[] = {
69	{
70		I2C_BOARD_INFO("pcf8563", 0x51),
71	}, {
72		I2C_BOARD_INFO("tsc2007", 0x48),
73		.platform_data	= &tsc2007_info,
74		/* irq number is run-time assigned */
75	},
76};
77
78static const iomux_v3_cfg_t eukrea_cpuimx35_pads[] __initconst = {
79	/* UART1 */
80	MX35_PAD_CTS1__UART1_CTS,
81	MX35_PAD_RTS1__UART1_RTS,
82	MX35_PAD_TXD1__UART1_TXD_MUX,
83	MX35_PAD_RXD1__UART1_RXD_MUX,
84	/* FEC */
85	MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
86	MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
87	MX35_PAD_FEC_RX_DV__FEC_RX_DV,
88	MX35_PAD_FEC_COL__FEC_COL,
89	MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
90	MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
91	MX35_PAD_FEC_TX_EN__FEC_TX_EN,
92	MX35_PAD_FEC_MDC__FEC_MDC,
93	MX35_PAD_FEC_MDIO__FEC_MDIO,
94	MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
95	MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
96	MX35_PAD_FEC_CRS__FEC_CRS,
97	MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
98	MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
99	MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
100	MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
101	MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
102	MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
103	/* I2C1 */
104	MX35_PAD_I2C1_CLK__I2C1_SCL,
105	MX35_PAD_I2C1_DAT__I2C1_SDA,
106	/* TSC2007 IRQ */
107	MX35_PAD_ATA_DA2__GPIO3_2,
108};
109
110static const struct mxc_nand_platform_data
111		eukrea_cpuimx35_nand_board_info __initconst = {
112	.width		= 1,
113	.hw_ecc		= 1,
114	.flash_bbt	= 1,
115};
116
117static int eukrea_cpuimx35_otg_init(struct platform_device *pdev)
118{
119	return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
120}
121
122static const struct mxc_usbh_platform_data otg_pdata __initconst = {
123	.init	= eukrea_cpuimx35_otg_init,
124	.portsc	= MXC_EHCI_MODE_UTMI,
125};
126
127static int eukrea_cpuimx35_usbh1_init(struct platform_device *pdev)
128{
129	return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_SINGLE_UNI |
130			MXC_EHCI_INTERNAL_PHY | MXC_EHCI_IPPUE_DOWN);
131}
132
133static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
134	.init	= eukrea_cpuimx35_usbh1_init,
135	.portsc	= MXC_EHCI_MODE_SERIAL,
136};
137
138static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
139	.operating_mode	= FSL_USB2_DR_DEVICE,
140	.phy_mode	= FSL_USB2_PHY_UTMI,
141	.workaround	= FLS_USB2_WORKAROUND_ENGCM09152,
142};
143
144static bool otg_mode_host __initdata;
145
146static int __init eukrea_cpuimx35_otg_mode(char *options)
147{
148	if (!strcmp(options, "host"))
149		otg_mode_host = true;
150	else if (!strcmp(options, "device"))
151		otg_mode_host = false;
152	else
153		pr_info("otg_mode neither \"host\" nor \"device\". "
154			"Defaulting to device\n");
155	return 1;
156}
157__setup("otg_mode=", eukrea_cpuimx35_otg_mode);
158
159/*
160 * Board specific initialization.
161 */
162static void __init eukrea_cpuimx35_init(void)
163{
164	imx35_soc_init();
165
166	mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx35_pads,
167			ARRAY_SIZE(eukrea_cpuimx35_pads));
168
169	imx35_add_fec(NULL);
170	imx35_add_imx2_wdt();
171
172	imx35_add_imx_uart0(&uart_pdata);
173	imx35_add_mxc_nand(&eukrea_cpuimx35_nand_board_info);
174
175	eukrea_cpuimx35_i2c_devices[1].irq = gpio_to_irq(TSC2007_IRQGPIO);
176	i2c_register_board_info(0, eukrea_cpuimx35_i2c_devices,
177			ARRAY_SIZE(eukrea_cpuimx35_i2c_devices));
178	imx35_add_imx_i2c0(&eukrea_cpuimx35_i2c0_data);
179
180	if (otg_mode_host)
181		imx35_add_mxc_ehci_otg(&otg_pdata);
182	else
183		imx35_add_fsl_usb2_udc(&otg_device_pdata);
184
185	imx35_add_mxc_ehci_hs(&usbh1_pdata);
186
187#ifdef CONFIG_MACH_EUKREA_MBIMXSD35_BASEBOARD
188	eukrea_mbimxsd35_baseboard_init();
189#endif
190}
191
192static void __init eukrea_cpuimx35_timer_init(void)
193{
194	mx35_clocks_init();
195}
196
197MACHINE_START(EUKREA_CPUIMX35SD, "Eukrea CPUIMX35")
198	/* Maintainer: Eukrea Electromatique */
199	.atag_offset = 0x100,
200	.map_io = mx35_map_io,
201	.init_early = imx35_init_early,
202	.init_irq = mx35_init_irq,
203	.init_time	= eukrea_cpuimx35_timer_init,
204	.init_machine = eukrea_cpuimx35_init,
205	.restart	= mxc_restart,
206MACHINE_END
207