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Valentin Longchampe00f0b42009-02-16 12:47:51 +01001/*
2 * Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
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.
Valentin Longchampe00f0b42009-02-16 12:47:51 +010013 */
14
Valentin Longchamp45b131a2009-04-21 10:24:56 +020015#include <linux/gpio.h>
Valentin Longchampe00f0b42009-02-16 12:47:51 +010016#include <linux/init.h>
Valentin Longchamp45b131a2009-04-21 10:24:56 +020017#include <linux/interrupt.h>
Sascha Hauer4bd597b2011-01-03 11:30:28 +010018#include <linux/delay.h>
Valentin Longchampe00f0b42009-02-16 12:47:51 +010019#include <linux/platform_device.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090020#include <linux/slab.h>
Valentin Longchamp220bbce2009-04-17 15:20:25 +020021#include <linux/types.h>
Valentin Longchampe00f0b42009-02-16 12:47:51 +010022
Valentin Longchampd67d1072009-11-23 19:16:37 +010023#include <linux/usb/otg.h>
24
Valentin Longchampe00f0b42009-02-16 12:47:51 +010025#include <mach/common.h>
Valentin Longchampe00f0b42009-02-16 12:47:51 +010026#include <mach/iomux-mx3.h>
Valentin Longchamp220bbce2009-04-17 15:20:25 +020027#include <mach/hardware.h>
Valentin Longchampd67d1072009-11-23 19:16:37 +010028#include <mach/ulpi.h>
Valentin Longchampe00f0b42009-02-16 12:47:51 +010029
Uwe Kleine-König16cf5c42010-06-23 11:46:16 +020030#include "devices-imx31.h"
Valentin Longchampe00f0b42009-02-16 12:47:51 +010031
Valentin Longchamp220bbce2009-04-17 15:20:25 +020032static unsigned int devboard_pins[] = {
33 /* UART1 */
Valentin Longchampe00f0b42009-02-16 12:47:51 +010034 MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2,
35 MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2,
Valentin Longchamp56c7a452009-04-22 10:55:50 +020036 /* SDHC2 */
37 MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2,
38 MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0,
39 MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD,
40 MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29,
Valentin Longchampd67d1072009-11-23 19:16:37 +010041 /* USB H1 */
42 MX31_PIN_CSPI1_MISO__USBH1_RXDP, MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
43 MX31_PIN_CSPI1_SS0__USBH1_TXDM, MX31_PIN_CSPI1_SS1__USBH1_TXDP,
44 MX31_PIN_CSPI1_SS2__USBH1_RCV, MX31_PIN_CSPI1_SCLK__USBH1_OEB,
45 MX31_PIN_CSPI1_SPI_RDY__USBH1_FS, MX31_PIN_SFS6__USBH1_SUSPEND,
46 MX31_PIN_NFRE_B__GPIO1_11, MX31_PIN_NFALE__GPIO1_12,
Valentin Longchampe335c752010-02-09 18:13:36 +010047 /* SEL */
48 MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
49 MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
Valentin Longchampe00f0b42009-02-16 12:47:51 +010050};
51
Uwe Kleine-König16cf5c42010-06-23 11:46:16 +020052static const struct imxuart_platform_data uart_pdata __initconst = {
Valentin Longchamp220bbce2009-04-17 15:20:25 +020053 .flags = IMXUART_HAVE_RTSCTS,
54};
55
Valentin Longchamp45b131a2009-04-21 10:24:56 +020056#define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR)
57#define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW)
58
59static int devboard_sdhc2_get_ro(struct device *dev)
60{
Valentin Longchamp563abb42009-08-11 17:29:21 +020061 return !gpio_get_value(SDHC2_WP);
Valentin Longchamp45b131a2009-04-21 10:24:56 +020062}
63
64static int devboard_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
65 void *data)
66{
Sascha Hauer4f163eb2009-05-06 12:55:50 +020067 int ret;
68
69 ret = gpio_request(SDHC2_CD, "sdhc-detect");
70 if (ret)
71 return ret;
72
73 gpio_direction_input(SDHC2_CD);
74
75 ret = gpio_request(SDHC2_WP, "sdhc-wp");
76 if (ret)
77 goto err_gpio_free;
78 gpio_direction_input(SDHC2_WP);
79
80 ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq,
Valentin Longchamp45b131a2009-04-21 10:24:56 +020081 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
82 "sdhc2-card-detect", data);
Sascha Hauer4f163eb2009-05-06 12:55:50 +020083 if (ret)
84 goto err_gpio_free_2;
85
86 return 0;
87
88err_gpio_free_2:
89 gpio_free(SDHC2_WP);
90err_gpio_free:
91 gpio_free(SDHC2_CD);
92
93 return ret;
Valentin Longchamp45b131a2009-04-21 10:24:56 +020094}
95
96static void devboard_sdhc2_exit(struct device *dev, void *data)
97{
98 free_irq(gpio_to_irq(SDHC2_CD), data);
Sascha Hauer4f163eb2009-05-06 12:55:50 +020099 gpio_free(SDHC2_WP);
100 gpio_free(SDHC2_CD);
Valentin Longchamp45b131a2009-04-21 10:24:56 +0200101}
102
Uwe Kleine-König6a697e32010-11-12 11:10:55 +0100103static const struct imxmmc_platform_data sdhc2_pdata __initconst = {
Valentin Longchamp45b131a2009-04-21 10:24:56 +0200104 .get_ro = devboard_sdhc2_get_ro,
105 .init = devboard_sdhc2_init,
106 .exit = devboard_sdhc2_exit,
107};
108
Valentin Longchampe335c752010-02-09 18:13:36 +0100109#define SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
110#define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
111#define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
112#define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
113
114static void devboard_init_sel_gpios(void)
115{
116 if (!gpio_request(SEL0, "sel0")) {
117 gpio_direction_input(SEL0);
118 gpio_export(SEL0, true);
119 }
120
121 if (!gpio_request(SEL1, "sel1")) {
122 gpio_direction_input(SEL1);
123 gpio_export(SEL1, true);
124 }
125
126 if (!gpio_request(SEL2, "sel2")) {
127 gpio_direction_input(SEL2);
128 gpio_export(SEL2, true);
129 }
130
131 if (!gpio_request(SEL3, "sel3")) {
132 gpio_direction_input(SEL3);
133 gpio_export(SEL3, true);
134 }
135}
Valentin Longchampd67d1072009-11-23 19:16:37 +0100136#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
137 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
138
139static int devboard_usbh1_hw_init(struct platform_device *pdev)
140{
141 mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
142
143 mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
144 mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
145 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
146 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
147 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
148 mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
149 mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
150 mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG);
151
Sascha Hauer4bd597b2011-01-03 11:30:28 +0100152 mdelay(10);
153
154 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
155 MXC_EHCI_INTERFACE_SINGLE_UNI);
Valentin Longchampd67d1072009-11-23 19:16:37 +0100156}
157
158#define USBH1_VBUSEN_B IOMUX_TO_GPIO(MX31_PIN_NFRE_B)
159#define USBH1_MODE IOMUX_TO_GPIO(MX31_PIN_NFALE)
160
161static int devboard_isp1105_init(struct otg_transceiver *otg)
162{
163 int ret = gpio_request(USBH1_MODE, "usbh1-mode");
164 if (ret)
165 return ret;
166 /* single ended */
167 gpio_direction_output(USBH1_MODE, 0);
168
169 ret = gpio_request(USBH1_VBUSEN_B, "usbh1-vbusen");
170 if (ret) {
171 gpio_free(USBH1_MODE);
172 return ret;
173 }
174 gpio_direction_output(USBH1_VBUSEN_B, 1);
175
176 return 0;
177}
178
179
180static int devboard_isp1105_set_vbus(struct otg_transceiver *otg, bool on)
181{
182 if (on)
183 gpio_set_value(USBH1_VBUSEN_B, 0);
184 else
185 gpio_set_value(USBH1_VBUSEN_B, 1);
186
187 return 0;
188}
189
Uwe Kleine-König2d58de22010-11-15 11:57:49 +0100190static struct mxc_usbh_platform_data usbh1_pdata __initdata = {
Valentin Longchampd67d1072009-11-23 19:16:37 +0100191 .init = devboard_usbh1_hw_init,
192 .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
Valentin Longchampd67d1072009-11-23 19:16:37 +0100193};
194
195static int __init devboard_usbh1_init(void)
196{
197 struct otg_transceiver *otg;
Uwe Kleine-König2d58de22010-11-15 11:57:49 +0100198 struct platform_device *pdev;
Valentin Longchampd67d1072009-11-23 19:16:37 +0100199
200 otg = kzalloc(sizeof(*otg), GFP_KERNEL);
201 if (!otg)
202 return -ENOMEM;
203
204 otg->label = "ISP1105";
205 otg->init = devboard_isp1105_init;
206 otg->set_vbus = devboard_isp1105_set_vbus;
207
208 usbh1_pdata.otg = otg;
209
Uwe Kleine-König2d58de22010-11-15 11:57:49 +0100210 pdev = imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
211 if (IS_ERR(pdev))
212 return PTR_ERR(pdev);
213
214 return 0;
Valentin Longchampd67d1072009-11-23 19:16:37 +0100215}
216
Philippe Rétornaz66c202a2010-05-11 16:57:50 +0200217
Uwe Kleine-König9e1dde32010-11-12 16:40:06 +0100218static const struct fsl_usb2_platform_data usb_pdata __initconst = {
Philippe Rétornaz66c202a2010-05-11 16:57:50 +0200219 .operating_mode = FSL_USB2_DR_DEVICE,
220 .phy_mode = FSL_USB2_PHY_ULPI,
221};
222
Valentin Longchampe00f0b42009-02-16 12:47:51 +0100223/*
224 * system init for baseboard usage. Will be called by mx31moboard init.
225 */
226void __init mx31moboard_devboard_init(void)
227{
228 printk(KERN_INFO "Initializing mx31devboard peripherals\n");
Valentin Longchamp220bbce2009-04-17 15:20:25 +0200229
230 mxc_iomux_setup_multiple_pins(devboard_pins, ARRAY_SIZE(devboard_pins),
231 "devboard");
232
Uwe Kleine-König16cf5c42010-06-23 11:46:16 +0200233 imx31_add_imx_uart1(&uart_pdata);
Valentin Longchamp45b131a2009-04-21 10:24:56 +0200234
Uwe Kleine-König6a697e32010-11-12 11:10:55 +0100235 imx31_add_mxc_mmc(1, &sdhc2_pdata);
Valentin Longchampd67d1072009-11-23 19:16:37 +0100236
Valentin Longchampe335c752010-02-09 18:13:36 +0100237 devboard_init_sel_gpios();
238
Uwe Kleine-König9e1dde32010-11-12 16:40:06 +0100239 imx31_add_fsl_usb2_udc(&usb_pdata);
Philippe Rétornaz66c202a2010-05-11 16:57:50 +0200240
Valentin Longchampd67d1072009-11-23 19:16:37 +0100241 devboard_usbh1_init();
Valentin Longchampe00f0b42009-02-16 12:47:51 +0100242}