1 /*
2 * Copyright 2009 Sascha Hauer, <kernel@pengutronix.de>
3 * Copyright 2010 Eric Bénard - Eukréa Electromatique, <eric@eukrea.com>
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20 #include <linux/types.h>
21 #include <linux/init.h>
22 #include <linux/delay.h>
23 #include <linux/clk.h>
24 #include <linux/irq.h>
25 #include <linux/gpio.h>
26 #include <linux/platform_device.h>
27 #include <linux/usb/otg.h>
28 #include <linux/usb/ulpi.h>
29
30 #include <mach/eukrea-baseboards.h>
31 #include <mach/hardware.h>
32 #include <asm/mach-types.h>
33 #include <asm/mach/arch.h>
34 #include <asm/mach/time.h>
35 #include <asm/memory.h>
36 #include <asm/mach/map.h>
37 #include <mach/common.h>
38 #include <mach/mx25.h>
39 #include <mach/iomux-mx25.h>
40
41 #include "devices-imx25.h"
42
43 static const struct imxuart_platform_data uart_pdata __initconst = {
44 .flags = IMXUART_HAVE_RTSCTS,
45 };
46
47 static iomux_v3_cfg_t eukrea_cpuimx25_pads[] = {
48 /* FEC - RMII */
49 MX25_PAD_FEC_MDC__FEC_MDC,
50 MX25_PAD_FEC_MDIO__FEC_MDIO,
51 MX25_PAD_FEC_TDATA0__FEC_TDATA0,
52 MX25_PAD_FEC_TDATA1__FEC_TDATA1,
53 MX25_PAD_FEC_TX_EN__FEC_TX_EN,
54 MX25_PAD_FEC_RDATA0__FEC_RDATA0,
55 MX25_PAD_FEC_RDATA1__FEC_RDATA1,
56 MX25_PAD_FEC_RX_DV__FEC_RX_DV,
57 MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
58 /* I2C1 */
59 MX25_PAD_I2C1_CLK__I2C1_CLK,
60 MX25_PAD_I2C1_DAT__I2C1_DAT,
61 };
62
63 static const struct fec_platform_data mx25_fec_pdata __initconst = {
64 .phy = PHY_INTERFACE_MODE_RMII,
65 };
66
67 static const struct mxc_nand_platform_data
68 eukrea_cpuimx25_nand_board_info __initconst = {
69 .width = 1,
70 .hw_ecc = 1,
71 .flash_bbt = 1,
72 };
73
74 static const struct imxi2c_platform_data
75 eukrea_cpuimx25_i2c0_data __initconst = {
76 .bitrate = 100000,
77 };
78
79 static struct i2c_board_info eukrea_cpuimx25_i2c_devices[] = {
80 {
81 I2C_BOARD_INFO("pcf8563", 0x51),
82 },
83 };
84
eukrea_cpuimx25_otg_init(struct platform_device * pdev)85 static int eukrea_cpuimx25_otg_init(struct platform_device *pdev)
86 {
87 return mx25_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
88 }
89
90 static const struct mxc_usbh_platform_data otg_pdata __initconst = {
91 .init = eukrea_cpuimx25_otg_init,
92 .portsc = MXC_EHCI_MODE_UTMI,
93 };
94
eukrea_cpuimx25_usbh2_init(struct platform_device * pdev)95 static int eukrea_cpuimx25_usbh2_init(struct platform_device *pdev)
96 {
97 return mx25_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_SINGLE_UNI |
98 MXC_EHCI_INTERNAL_PHY | MXC_EHCI_IPPUE_DOWN);
99 }
100
101 static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
102 .init = eukrea_cpuimx25_usbh2_init,
103 .portsc = MXC_EHCI_MODE_SERIAL,
104 };
105
106 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
107 .operating_mode = FSL_USB2_DR_DEVICE,
108 .phy_mode = FSL_USB2_PHY_UTMI,
109 };
110
111 static int otg_mode_host;
112
eukrea_cpuimx25_otg_mode(char * options)113 static int __init eukrea_cpuimx25_otg_mode(char *options)
114 {
115 if (!strcmp(options, "host"))
116 otg_mode_host = 1;
117 else if (!strcmp(options, "device"))
118 otg_mode_host = 0;
119 else
120 pr_info("otg_mode neither \"host\" nor \"device\". "
121 "Defaulting to device\n");
122 return 0;
123 }
124 __setup("otg_mode=", eukrea_cpuimx25_otg_mode);
125
eukrea_cpuimx25_init(void)126 static void __init eukrea_cpuimx25_init(void)
127 {
128 imx25_soc_init();
129
130 if (mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx25_pads,
131 ARRAY_SIZE(eukrea_cpuimx25_pads)))
132 printk(KERN_ERR "error setting cpuimx25 pads !\n");
133
134 imx25_add_imx_uart0(&uart_pdata);
135 imx25_add_mxc_nand(&eukrea_cpuimx25_nand_board_info);
136 imx25_add_imxdi_rtc(NULL);
137 imx25_add_fec(&mx25_fec_pdata);
138
139 i2c_register_board_info(0, eukrea_cpuimx25_i2c_devices,
140 ARRAY_SIZE(eukrea_cpuimx25_i2c_devices));
141 imx25_add_imx_i2c0(&eukrea_cpuimx25_i2c0_data);
142
143 if (otg_mode_host)
144 imx25_add_mxc_ehci_otg(&otg_pdata);
145 else
146 imx25_add_fsl_usb2_udc(&otg_device_pdata);
147
148 imx25_add_mxc_ehci_hs(&usbh2_pdata);
149
150 #ifdef CONFIG_MACH_EUKREA_MBIMXSD25_BASEBOARD
151 eukrea_mbimxsd25_baseboard_init();
152 #endif
153 }
154
eukrea_cpuimx25_timer_init(void)155 static void __init eukrea_cpuimx25_timer_init(void)
156 {
157 mx25_clocks_init();
158 }
159
160 static struct sys_timer eukrea_cpuimx25_timer = {
161 .init = eukrea_cpuimx25_timer_init,
162 };
163
164 MACHINE_START(EUKREA_CPUIMX25SD, "Eukrea CPUIMX25")
165 /* Maintainer: Eukrea Electromatique */
166 .atag_offset = 0x100,
167 .map_io = mx25_map_io,
168 .init_early = imx25_init_early,
169 .init_irq = mx25_init_irq,
170 .handle_irq = imx25_handle_irq,
171 .timer = &eukrea_cpuimx25_timer,
172 .init_machine = eukrea_cpuimx25_init,
173 .restart = mxc_restart,
174 MACHINE_END
175