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 <mach/eukrea-baseboards.h>
41 #include <mach/hardware.h>
42 #include <mach/common.h>
43 #include <mach/iomux-mx35.h>
44
45 #include "devices-imx35.h"
46
47 static const struct imxuart_platform_data uart_pdata __initconst = {
48 .flags = IMXUART_HAVE_RTSCTS,
49 };
50
51 static 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)
tsc2007_get_pendown_state(void)57 static int tsc2007_get_pendown_state(void)
58 {
59 return !gpio_get_value(TSC2007_IRQGPIO);
60 }
61
62 static struct tsc2007_platform_data tsc2007_info = {
63 .model = 2007,
64 .x_plate_ohms = 180,
65 .get_pendown_state = tsc2007_get_pendown_state,
66 };
67
68 static struct i2c_board_info eukrea_cpuimx35_i2c_devices[] = {
69 {
70 I2C_BOARD_INFO("pcf8563", 0x51),
71 }, {
72 I2C_BOARD_INFO("tsc2007", 0x48),
73 .type = "tsc2007",
74 .platform_data = &tsc2007_info,
75 .irq = IMX_GPIO_TO_IRQ(TSC2007_IRQGPIO),
76 },
77 };
78
79 static iomux_v3_cfg_t eukrea_cpuimx35_pads[] = {
80 /* UART1 */
81 MX35_PAD_CTS1__UART1_CTS,
82 MX35_PAD_RTS1__UART1_RTS,
83 MX35_PAD_TXD1__UART1_TXD_MUX,
84 MX35_PAD_RXD1__UART1_RXD_MUX,
85 /* FEC */
86 MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
87 MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
88 MX35_PAD_FEC_RX_DV__FEC_RX_DV,
89 MX35_PAD_FEC_COL__FEC_COL,
90 MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
91 MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
92 MX35_PAD_FEC_TX_EN__FEC_TX_EN,
93 MX35_PAD_FEC_MDC__FEC_MDC,
94 MX35_PAD_FEC_MDIO__FEC_MDIO,
95 MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
96 MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
97 MX35_PAD_FEC_CRS__FEC_CRS,
98 MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
99 MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
100 MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
101 MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
102 MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
103 MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
104 /* I2C1 */
105 MX35_PAD_I2C1_CLK__I2C1_SCL,
106 MX35_PAD_I2C1_DAT__I2C1_SDA,
107 /* TSC2007 IRQ */
108 MX35_PAD_ATA_DA2__GPIO3_2,
109 };
110
111 static const struct mxc_nand_platform_data
112 eukrea_cpuimx35_nand_board_info __initconst = {
113 .width = 1,
114 .hw_ecc = 1,
115 .flash_bbt = 1,
116 };
117
eukrea_cpuimx35_otg_init(struct platform_device * pdev)118 static int eukrea_cpuimx35_otg_init(struct platform_device *pdev)
119 {
120 return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
121 }
122
123 static const struct mxc_usbh_platform_data otg_pdata __initconst = {
124 .init = eukrea_cpuimx35_otg_init,
125 .portsc = MXC_EHCI_MODE_UTMI,
126 };
127
eukrea_cpuimx35_usbh1_init(struct platform_device * pdev)128 static int eukrea_cpuimx35_usbh1_init(struct platform_device *pdev)
129 {
130 return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_SINGLE_UNI |
131 MXC_EHCI_INTERNAL_PHY | MXC_EHCI_IPPUE_DOWN);
132 }
133
134 static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
135 .init = eukrea_cpuimx35_usbh1_init,
136 .portsc = MXC_EHCI_MODE_SERIAL,
137 };
138
139 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
140 .operating_mode = FSL_USB2_DR_DEVICE,
141 .phy_mode = FSL_USB2_PHY_UTMI,
142 .workaround = FLS_USB2_WORKAROUND_ENGCM09152,
143 };
144
145 static int otg_mode_host;
146
eukrea_cpuimx35_otg_mode(char * options)147 static int __init eukrea_cpuimx35_otg_mode(char *options)
148 {
149 if (!strcmp(options, "host"))
150 otg_mode_host = 1;
151 else if (!strcmp(options, "device"))
152 otg_mode_host = 0;
153 else
154 pr_info("otg_mode neither \"host\" nor \"device\". "
155 "Defaulting to device\n");
156 return 0;
157 }
158 __setup("otg_mode=", eukrea_cpuimx35_otg_mode);
159
160 /*
161 * Board specific initialization.
162 */
eukrea_cpuimx35_init(void)163 static void __init eukrea_cpuimx35_init(void)
164 {
165 imx35_soc_init();
166
167 mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx35_pads,
168 ARRAY_SIZE(eukrea_cpuimx35_pads));
169
170 imx35_add_fec(NULL);
171 imx35_add_imx2_wdt(NULL);
172
173 imx35_add_imx_uart0(&uart_pdata);
174 imx35_add_mxc_nand(&eukrea_cpuimx35_nand_board_info);
175
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
eukrea_cpuimx35_timer_init(void)192 static void __init eukrea_cpuimx35_timer_init(void)
193 {
194 mx35_clocks_init();
195 }
196
197 struct sys_timer eukrea_cpuimx35_timer = {
198 .init = eukrea_cpuimx35_timer_init,
199 };
200
201 MACHINE_START(EUKREA_CPUIMX35SD, "Eukrea CPUIMX35")
202 /* Maintainer: Eukrea Electromatique */
203 .atag_offset = 0x100,
204 .map_io = mx35_map_io,
205 .init_early = imx35_init_early,
206 .init_irq = mx35_init_irq,
207 .handle_irq = imx35_handle_irq,
208 .timer = &eukrea_cpuimx35_timer,
209 .init_machine = eukrea_cpuimx35_init,
210 .restart = mxc_restart,
211 MACHINE_END
212