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 <asm/mach-types.h>
31 #include <asm/mach/arch.h>
32 #include <asm/mach/time.h>
33 #include <asm/memory.h>
34 #include <asm/mach/map.h>
35
36 #include "common.h"
37 #include "devices-imx25.h"
38 #include "ehci.h"
39 #include "eukrea-baseboards.h"
40 #include "hardware.h"
41 #include "iomux-mx25.h"
42 #include "mx25.h"
43
44 static const struct imxuart_platform_data uart_pdata __initconst = {
45 .flags = IMXUART_HAVE_RTSCTS,
46 };
47
48 static iomux_v3_cfg_t eukrea_cpuimx25_pads[] = {
49 /* FEC - RMII */
50 MX25_PAD_FEC_MDC__FEC_MDC,
51 MX25_PAD_FEC_MDIO__FEC_MDIO,
52 MX25_PAD_FEC_TDATA0__FEC_TDATA0,
53 MX25_PAD_FEC_TDATA1__FEC_TDATA1,
54 MX25_PAD_FEC_TX_EN__FEC_TX_EN,
55 MX25_PAD_FEC_RDATA0__FEC_RDATA0,
56 MX25_PAD_FEC_RDATA1__FEC_RDATA1,
57 MX25_PAD_FEC_RX_DV__FEC_RX_DV,
58 MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
59 /* I2C1 */
60 MX25_PAD_I2C1_CLK__I2C1_CLK,
61 MX25_PAD_I2C1_DAT__I2C1_DAT,
62 };
63
64 static const struct fec_platform_data mx25_fec_pdata __initconst = {
65 .phy = PHY_INTERFACE_MODE_RMII,
66 };
67
68 static const struct mxc_nand_platform_data
69 eukrea_cpuimx25_nand_board_info __initconst = {
70 .width = 1,
71 .hw_ecc = 1,
72 .flash_bbt = 1,
73 };
74
75 static const struct imxi2c_platform_data
76 eukrea_cpuimx25_i2c0_data __initconst = {
77 .bitrate = 100000,
78 };
79
80 static struct i2c_board_info eukrea_cpuimx25_i2c_devices[] = {
81 {
82 I2C_BOARD_INFO("pcf8563", 0x51),
83 },
84 };
85
eukrea_cpuimx25_otg_init(struct platform_device * pdev)86 static int eukrea_cpuimx25_otg_init(struct platform_device *pdev)
87 {
88 return mx25_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
89 }
90
91 static const struct mxc_usbh_platform_data otg_pdata __initconst = {
92 .init = eukrea_cpuimx25_otg_init,
93 .portsc = MXC_EHCI_MODE_UTMI,
94 };
95
eukrea_cpuimx25_usbh2_init(struct platform_device * pdev)96 static int eukrea_cpuimx25_usbh2_init(struct platform_device *pdev)
97 {
98 return mx25_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_SINGLE_UNI |
99 MXC_EHCI_INTERNAL_PHY | MXC_EHCI_IPPUE_DOWN);
100 }
101
102 static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
103 .init = eukrea_cpuimx25_usbh2_init,
104 .portsc = MXC_EHCI_MODE_SERIAL,
105 };
106
107 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
108 .operating_mode = FSL_USB2_DR_DEVICE,
109 .phy_mode = FSL_USB2_PHY_UTMI,
110 .workaround = FLS_USB2_WORKAROUND_ENGCM09152,
111 };
112
113 static bool otg_mode_host __initdata;
114
eukrea_cpuimx25_otg_mode(char * options)115 static int __init eukrea_cpuimx25_otg_mode(char *options)
116 {
117 if (!strcmp(options, "host"))
118 otg_mode_host = true;
119 else if (!strcmp(options, "device"))
120 otg_mode_host = false;
121 else
122 pr_info("otg_mode neither \"host\" nor \"device\". "
123 "Defaulting to device\n");
124 return 1;
125 }
126 __setup("otg_mode=", eukrea_cpuimx25_otg_mode);
127
eukrea_cpuimx25_init(void)128 static void __init eukrea_cpuimx25_init(void)
129 {
130 imx25_soc_init();
131
132 if (mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx25_pads,
133 ARRAY_SIZE(eukrea_cpuimx25_pads)))
134 printk(KERN_ERR "error setting cpuimx25 pads !\n");
135
136 imx25_add_imx_uart0(&uart_pdata);
137 imx25_add_mxc_nand(&eukrea_cpuimx25_nand_board_info);
138 imx25_add_imxdi_rtc();
139 imx25_add_fec(&mx25_fec_pdata);
140 imx25_add_imx2_wdt();
141
142 i2c_register_board_info(0, eukrea_cpuimx25_i2c_devices,
143 ARRAY_SIZE(eukrea_cpuimx25_i2c_devices));
144 imx25_add_imx_i2c0(&eukrea_cpuimx25_i2c0_data);
145
146 if (otg_mode_host)
147 imx25_add_mxc_ehci_otg(&otg_pdata);
148 else
149 imx25_add_fsl_usb2_udc(&otg_device_pdata);
150
151 imx25_add_mxc_ehci_hs(&usbh2_pdata);
152
153 #ifdef CONFIG_MACH_EUKREA_MBIMXSD25_BASEBOARD
154 eukrea_mbimxsd25_baseboard_init();
155 #endif
156 }
157
eukrea_cpuimx25_timer_init(void)158 static void __init eukrea_cpuimx25_timer_init(void)
159 {
160 mx25_clocks_init();
161 }
162
163 MACHINE_START(EUKREA_CPUIMX25SD, "Eukrea CPUIMX25")
164 /* Maintainer: Eukrea Electromatique */
165 .atag_offset = 0x100,
166 .map_io = mx25_map_io,
167 .init_early = imx25_init_early,
168 .init_irq = mx25_init_irq,
169 .init_time = eukrea_cpuimx25_timer_init,
170 .init_machine = eukrea_cpuimx25_init,
171 .restart = mxc_restart,
172 MACHINE_END
173