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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
Shawn Guoe3372472012-09-13 21:01:00 +080025#include "common.h"
Uwe Kleine-König16cf5c42010-06-23 11:46:16 +020026#include "devices-imx31.h"
Shawn Guo50f2de62012-09-14 14:14:45 +080027#include "hardware.h"
Shawn Guo267dd342012-09-13 13:26:00 +080028#include "iomux-mx3.h"
Shawn Guo39ef6342012-09-13 21:46:09 +080029#include "ulpi.h"
Valentin Longchampe00f0b42009-02-16 12:47:51 +010030
Valentin Longchamp220bbce2009-04-17 15:20:25 +020031static unsigned int devboard_pins[] = {
32 /* UART1 */
Valentin Longchampe00f0b42009-02-16 12:47:51 +010033 MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2,
34 MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2,
Valentin Longchamp56c7a452009-04-22 10:55:50 +020035 /* SDHC2 */
36 MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2,
37 MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0,
38 MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD,
39 MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29,
Valentin Longchampd67d1072009-11-23 19:16:37 +010040 /* USB H1 */
41 MX31_PIN_CSPI1_MISO__USBH1_RXDP, MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
42 MX31_PIN_CSPI1_SS0__USBH1_TXDM, MX31_PIN_CSPI1_SS1__USBH1_TXDP,
43 MX31_PIN_CSPI1_SS2__USBH1_RCV, MX31_PIN_CSPI1_SCLK__USBH1_OEB,
44 MX31_PIN_CSPI1_SPI_RDY__USBH1_FS, MX31_PIN_SFS6__USBH1_SUSPEND,
45 MX31_PIN_NFRE_B__GPIO1_11, MX31_PIN_NFALE__GPIO1_12,
Valentin Longchampe335c752010-02-09 18:13:36 +010046 /* SEL */
47 MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
48 MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
Valentin Longchampe00f0b42009-02-16 12:47:51 +010049};
50
Uwe Kleine-König16cf5c42010-06-23 11:46:16 +020051static const struct imxuart_platform_data uart_pdata __initconst = {
Valentin Longchamp220bbce2009-04-17 15:20:25 +020052 .flags = IMXUART_HAVE_RTSCTS,
53};
54
Valentin Longchamp45b131a2009-04-21 10:24:56 +020055#define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR)
56#define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW)
57
58static int devboard_sdhc2_get_ro(struct device *dev)
59{
Valentin Longchamp563abb42009-08-11 17:29:21 +020060 return !gpio_get_value(SDHC2_WP);
Valentin Longchamp45b131a2009-04-21 10:24:56 +020061}
62
63static int devboard_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
64 void *data)
65{
Sascha Hauer4f163eb2009-05-06 12:55:50 +020066 int ret;
67
68 ret = gpio_request(SDHC2_CD, "sdhc-detect");
69 if (ret)
70 return ret;
71
72 gpio_direction_input(SDHC2_CD);
73
74 ret = gpio_request(SDHC2_WP, "sdhc-wp");
75 if (ret)
76 goto err_gpio_free;
77 gpio_direction_input(SDHC2_WP);
78
79 ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq,
Valentin Longchamp45b131a2009-04-21 10:24:56 +020080 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
81 "sdhc2-card-detect", data);
Sascha Hauer4f163eb2009-05-06 12:55:50 +020082 if (ret)
83 goto err_gpio_free_2;
84
85 return 0;
86
87err_gpio_free_2:
88 gpio_free(SDHC2_WP);
89err_gpio_free:
90 gpio_free(SDHC2_CD);
91
92 return ret;
Valentin Longchamp45b131a2009-04-21 10:24:56 +020093}
94
95static void devboard_sdhc2_exit(struct device *dev, void *data)
96{
97 free_irq(gpio_to_irq(SDHC2_CD), data);
Sascha Hauer4f163eb2009-05-06 12:55:50 +020098 gpio_free(SDHC2_WP);
99 gpio_free(SDHC2_CD);
Valentin Longchamp45b131a2009-04-21 10:24:56 +0200100}
101
Uwe Kleine-König6a697e32010-11-12 11:10:55 +0100102static const struct imxmmc_platform_data sdhc2_pdata __initconst = {
Valentin Longchamp45b131a2009-04-21 10:24:56 +0200103 .get_ro = devboard_sdhc2_get_ro,
104 .init = devboard_sdhc2_init,
105 .exit = devboard_sdhc2_exit,
106};
107
Valentin Longchampe335c752010-02-09 18:13:36 +0100108#define SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
109#define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
110#define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
111#define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
112
113static void devboard_init_sel_gpios(void)
114{
115 if (!gpio_request(SEL0, "sel0")) {
116 gpio_direction_input(SEL0);
117 gpio_export(SEL0, true);
118 }
119
120 if (!gpio_request(SEL1, "sel1")) {
121 gpio_direction_input(SEL1);
122 gpio_export(SEL1, true);
123 }
124
125 if (!gpio_request(SEL2, "sel2")) {
126 gpio_direction_input(SEL2);
127 gpio_export(SEL2, true);
128 }
129
130 if (!gpio_request(SEL3, "sel3")) {
131 gpio_direction_input(SEL3);
132 gpio_export(SEL3, true);
133 }
134}
Valentin Longchampd67d1072009-11-23 19:16:37 +0100135#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
136 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
137
138static int devboard_usbh1_hw_init(struct platform_device *pdev)
139{
140 mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
141
142 mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
143 mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
144 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
145 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
146 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
147 mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
148 mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
149 mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG);
150
Sascha Hauer4bd597b2011-01-03 11:30:28 +0100151 mdelay(10);
152
153 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
154 MXC_EHCI_INTERFACE_SINGLE_UNI);
Valentin Longchampd67d1072009-11-23 19:16:37 +0100155}
156
157#define USBH1_VBUSEN_B IOMUX_TO_GPIO(MX31_PIN_NFRE_B)
158#define USBH1_MODE IOMUX_TO_GPIO(MX31_PIN_NFALE)
159
Heikki Krogerus86753812012-02-13 13:24:02 +0200160static int devboard_isp1105_init(struct usb_phy *otg)
Valentin Longchampd67d1072009-11-23 19:16:37 +0100161{
162 int ret = gpio_request(USBH1_MODE, "usbh1-mode");
163 if (ret)
164 return ret;
165 /* single ended */
166 gpio_direction_output(USBH1_MODE, 0);
167
168 ret = gpio_request(USBH1_VBUSEN_B, "usbh1-vbusen");
169 if (ret) {
170 gpio_free(USBH1_MODE);
171 return ret;
172 }
173 gpio_direction_output(USBH1_VBUSEN_B, 1);
174
175 return 0;
176}
177
178
Heikki Krogerus76eb57e2012-02-13 13:24:14 +0200179static int devboard_isp1105_set_vbus(struct usb_otg *otg, bool on)
Valentin Longchampd67d1072009-11-23 19:16:37 +0100180{
181 if (on)
182 gpio_set_value(USBH1_VBUSEN_B, 0);
183 else
184 gpio_set_value(USBH1_VBUSEN_B, 1);
185
186 return 0;
187}
188
Uwe Kleine-König2d58de22010-11-15 11:57:49 +0100189static struct mxc_usbh_platform_data usbh1_pdata __initdata = {
Valentin Longchampd67d1072009-11-23 19:16:37 +0100190 .init = devboard_usbh1_hw_init,
191 .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
Valentin Longchampd67d1072009-11-23 19:16:37 +0100192};
193
194static int __init devboard_usbh1_init(void)
195{
Heikki Krogerus76eb57e2012-02-13 13:24:14 +0200196 struct usb_phy *phy;
Uwe Kleine-König2d58de22010-11-15 11:57:49 +0100197 struct platform_device *pdev;
Valentin Longchampd67d1072009-11-23 19:16:37 +0100198
Heikki Krogerus76eb57e2012-02-13 13:24:14 +0200199 phy = kzalloc(sizeof(*phy), GFP_KERNEL);
200 if (!phy)
Valentin Longchampd67d1072009-11-23 19:16:37 +0100201 return -ENOMEM;
202
Heikki Krogerus76eb57e2012-02-13 13:24:14 +0200203 phy->otg = kzalloc(sizeof(struct usb_otg), GFP_KERNEL);
204 if (!phy->otg) {
205 kfree(phy);
206 return -ENOMEM;
207 }
Valentin Longchampd67d1072009-11-23 19:16:37 +0100208
Heikki Krogerus76eb57e2012-02-13 13:24:14 +0200209 phy->label = "ISP1105";
210 phy->init = devboard_isp1105_init;
211 phy->otg->set_vbus = devboard_isp1105_set_vbus;
212
213 usbh1_pdata.otg = phy;
Valentin Longchampd67d1072009-11-23 19:16:37 +0100214
Uwe Kleine-König2d58de22010-11-15 11:57:49 +0100215 pdev = imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
216 if (IS_ERR(pdev))
217 return PTR_ERR(pdev);
218
219 return 0;
Valentin Longchampd67d1072009-11-23 19:16:37 +0100220}
221
Philippe Rétornaz66c202a2010-05-11 16:57:50 +0200222
Uwe Kleine-König9e1dde32010-11-12 16:40:06 +0100223static const struct fsl_usb2_platform_data usb_pdata __initconst = {
Philippe Rétornaz66c202a2010-05-11 16:57:50 +0200224 .operating_mode = FSL_USB2_DR_DEVICE,
225 .phy_mode = FSL_USB2_PHY_ULPI,
226};
227
Valentin Longchampe00f0b42009-02-16 12:47:51 +0100228/*
229 * system init for baseboard usage. Will be called by mx31moboard init.
230 */
231void __init mx31moboard_devboard_init(void)
232{
233 printk(KERN_INFO "Initializing mx31devboard peripherals\n");
Valentin Longchamp220bbce2009-04-17 15:20:25 +0200234
235 mxc_iomux_setup_multiple_pins(devboard_pins, ARRAY_SIZE(devboard_pins),
236 "devboard");
237
Uwe Kleine-König16cf5c42010-06-23 11:46:16 +0200238 imx31_add_imx_uart1(&uart_pdata);
Valentin Longchamp45b131a2009-04-21 10:24:56 +0200239
Uwe Kleine-König6a697e32010-11-12 11:10:55 +0100240 imx31_add_mxc_mmc(1, &sdhc2_pdata);
Valentin Longchampd67d1072009-11-23 19:16:37 +0100241
Valentin Longchampe335c752010-02-09 18:13:36 +0100242 devboard_init_sel_gpios();
243
Uwe Kleine-König9e1dde32010-11-12 16:40:06 +0100244 imx31_add_fsl_usb2_udc(&usb_pdata);
Philippe Rétornaz66c202a2010-05-11 16:57:50 +0200245
Valentin Longchampd67d1072009-11-23 19:16:37 +0100246 devboard_usbh1_init();
Valentin Longchampe00f0b42009-02-16 12:47:51 +0100247}