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
 43static const struct imxuart_platform_data uart_pdata __initconst = {
 44	.flags = IMXUART_HAVE_RTSCTS,
 45};
 46
 47static 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
 63static const struct fec_platform_data mx25_fec_pdata __initconst = {
 64	.phy	= PHY_INTERFACE_MODE_RMII,
 65};
 66
 67static const struct mxc_nand_platform_data
 68eukrea_cpuimx25_nand_board_info __initconst = {
 69	.width		= 1,
 70	.hw_ecc		= 1,
 71	.flash_bbt	= 1,
 72};
 73
 74static const struct imxi2c_platform_data
 75eukrea_cpuimx25_i2c0_data __initconst = {
 76	.bitrate = 100000,
 77};
 78
 79static struct i2c_board_info eukrea_cpuimx25_i2c_devices[] = {
 80	{
 81		I2C_BOARD_INFO("pcf8563", 0x51),
 82	},
 83};
 84
 85static 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
 90static const struct mxc_usbh_platform_data otg_pdata __initconst = {
 91	.init	= eukrea_cpuimx25_otg_init,
 92	.portsc	= MXC_EHCI_MODE_UTMI,
 93};
 94
 95static 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
101static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
102	.init	= eukrea_cpuimx25_usbh2_init,
103	.portsc	= MXC_EHCI_MODE_SERIAL,
104};
105
106static 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	.workaround     = FLS_USB2_WORKAROUND_ENGCM09152,
110};
111
112static int otg_mode_host;
113
114static int __init eukrea_cpuimx25_otg_mode(char *options)
115{
116	if (!strcmp(options, "host"))
117		otg_mode_host = 1;
118	else if (!strcmp(options, "device"))
119		otg_mode_host = 0;
120	else
121		pr_info("otg_mode neither \"host\" nor \"device\". "
122			"Defaulting to device\n");
123	return 0;
124}
125__setup("otg_mode=", eukrea_cpuimx25_otg_mode);
126
127static void __init eukrea_cpuimx25_init(void)
128{
129	imx25_soc_init();
130
131	if (mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx25_pads,
132			ARRAY_SIZE(eukrea_cpuimx25_pads)))
133		printk(KERN_ERR "error setting cpuimx25 pads !\n");
134
135	imx25_add_imx_uart0(&uart_pdata);
136	imx25_add_mxc_nand(&eukrea_cpuimx25_nand_board_info);
137	imx25_add_imxdi_rtc(NULL);
138	imx25_add_fec(&mx25_fec_pdata);
139	imx25_add_imx2_wdt(NULL);
140
141	i2c_register_board_info(0, eukrea_cpuimx25_i2c_devices,
142				ARRAY_SIZE(eukrea_cpuimx25_i2c_devices));
143	imx25_add_imx_i2c0(&eukrea_cpuimx25_i2c0_data);
144
145	if (otg_mode_host)
146		imx25_add_mxc_ehci_otg(&otg_pdata);
147	else
148		imx25_add_fsl_usb2_udc(&otg_device_pdata);
149
150	imx25_add_mxc_ehci_hs(&usbh2_pdata);
151
152#ifdef CONFIG_MACH_EUKREA_MBIMXSD25_BASEBOARD
153	eukrea_mbimxsd25_baseboard_init();
154#endif
155}
156
157static void __init eukrea_cpuimx25_timer_init(void)
158{
159	mx25_clocks_init();
160}
161
162static struct sys_timer eukrea_cpuimx25_timer = {
163	.init   = eukrea_cpuimx25_timer_init,
164};
165
166MACHINE_START(EUKREA_CPUIMX25SD, "Eukrea CPUIMX25")
167	/* Maintainer: Eukrea Electromatique */
168	.atag_offset = 0x100,
169	.map_io = mx25_map_io,
170	.init_early = imx25_init_early,
171	.init_irq = mx25_init_irq,
172	.handle_irq = imx25_handle_irq,
173	.timer = &eukrea_cpuimx25_timer,
174	.init_machine = eukrea_cpuimx25_init,
175	.restart	= mxc_restart,
176MACHINE_END