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15#include <linux/delay.h>
16#include <linux/gpio.h>
17#include <linux/init.h>
18#include <linux/interrupt.h>
19#include <linux/i2c.h>
20#include <linux/spi/spi.h>
21#include <linux/slab.h>
22#include <linux/platform_device.h>
23#include <linux/types.h>
24
25#include <linux/usb/otg.h>
26
27#include "board-mx31moboard.h"
28#include "common.h"
29#include "devices-imx31.h"
30#include "ehci.h"
31#include "hardware.h"
32#include "iomux-mx3.h"
33#include "ulpi.h"
34
35static unsigned int marxbot_pins[] = {
36
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,
41
42 MX31_PIN_STXD5__GPIO1_21, MX31_PIN_SRXD5__GPIO1_22,
43
44 MX31_PIN_LCS0__GPIO3_23,
45
46 MX31_PIN_CSPI1_MISO__USBH1_RXDP, MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
47 MX31_PIN_CSPI1_SS0__USBH1_TXDM, MX31_PIN_CSPI1_SS1__USBH1_TXDP,
48 MX31_PIN_CSPI1_SS2__USBH1_RCV, MX31_PIN_CSPI1_SCLK__USBH1_OEB,
49 MX31_PIN_CSPI1_SPI_RDY__USBH1_FS, MX31_PIN_SFS6__USBH1_SUSPEND,
50 MX31_PIN_NFRE_B__GPIO1_11, MX31_PIN_NFALE__GPIO1_12,
51
52 MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
53 MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
54};
55
56#define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR)
57#define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW)
58
59static int marxbot_sdhc2_get_ro(struct device *dev)
60{
61 return !gpio_get_value(SDHC2_WP);
62}
63
64static int marxbot_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
65 void *data)
66{
67 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,
81 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
82 "sdhc2-card-detect", data);
83 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;
94}
95
96static void marxbot_sdhc2_exit(struct device *dev, void *data)
97{
98 free_irq(gpio_to_irq(SDHC2_CD), data);
99 gpio_free(SDHC2_WP);
100 gpio_free(SDHC2_CD);
101}
102
103static const struct imxmmc_platform_data sdhc2_pdata __initconst = {
104 .get_ro = marxbot_sdhc2_get_ro,
105 .init = marxbot_sdhc2_init,
106 .exit = marxbot_sdhc2_exit,
107};
108
109#define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_STXD5)
110#define DSPICS_RST_B IOMUX_TO_GPIO(MX31_PIN_SRXD5)
111
112static void dspics_resets_init(void)
113{
114 if (!gpio_request(TRSLAT_RST_B, "translator-rst")) {
115 gpio_direction_output(TRSLAT_RST_B, 0);
116 gpio_export(TRSLAT_RST_B, false);
117 }
118
119 if (!gpio_request(DSPICS_RST_B, "dspics-rst")) {
120 gpio_direction_output(DSPICS_RST_B, 0);
121 gpio_export(DSPICS_RST_B, false);
122 }
123}
124
125static struct spi_board_info marxbot_spi_board_info[] __initdata = {
126 {
127 .modalias = "spidev",
128 .max_speed_hz = 300000,
129 .bus_num = 1,
130 .chip_select = 1,
131 },
132};
133
134#define SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
135#define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
136#define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
137#define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
138
139static void marxbot_init_sel_gpios(void)
140{
141 if (!gpio_request(SEL0, "sel0")) {
142 gpio_direction_input(SEL0);
143 gpio_export(SEL0, true);
144 }
145
146 if (!gpio_request(SEL1, "sel1")) {
147 gpio_direction_input(SEL1);
148 gpio_export(SEL1, true);
149 }
150
151 if (!gpio_request(SEL2, "sel2")) {
152 gpio_direction_input(SEL2);
153 gpio_export(SEL2, true);
154 }
155
156 if (!gpio_request(SEL3, "sel3")) {
157 gpio_direction_input(SEL3);
158 gpio_export(SEL3, true);
159 }
160}
161
162#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
163 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
164
165static int marxbot_usbh1_hw_init(struct platform_device *pdev)
166{
167 mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
168
169 mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
170 mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
171 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
172 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
173 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
174 mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
175 mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
176 mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG);
177
178 mdelay(10);
179
180 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
181 MXC_EHCI_INTERFACE_SINGLE_UNI);
182}
183
184#define USBH1_VBUSEN_B IOMUX_TO_GPIO(MX31_PIN_NFRE_B)
185#define USBH1_MODE IOMUX_TO_GPIO(MX31_PIN_NFALE)
186
187static int marxbot_isp1105_init(struct usb_phy *otg)
188{
189 int ret = gpio_request(USBH1_MODE, "usbh1-mode");
190 if (ret)
191 return ret;
192
193 gpio_direction_output(USBH1_MODE, 0);
194
195 ret = gpio_request(USBH1_VBUSEN_B, "usbh1-vbusen");
196 if (ret) {
197 gpio_free(USBH1_MODE);
198 return ret;
199 }
200 gpio_direction_output(USBH1_VBUSEN_B, 1);
201
202 return 0;
203}
204
205
206static int marxbot_isp1105_set_vbus(struct usb_otg *otg, bool on)
207{
208 if (on)
209 gpio_set_value(USBH1_VBUSEN_B, 0);
210 else
211 gpio_set_value(USBH1_VBUSEN_B, 1);
212
213 return 0;
214}
215
216static struct mxc_usbh_platform_data usbh1_pdata __initdata = {
217 .init = marxbot_usbh1_hw_init,
218 .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
219};
220
221static int __init marxbot_usbh1_init(void)
222{
223 struct usb_phy *phy;
224 struct platform_device *pdev;
225
226 phy = kzalloc(sizeof(*phy), GFP_KERNEL);
227 if (!phy)
228 return -ENOMEM;
229
230 phy->otg = kzalloc(sizeof(struct usb_otg), GFP_KERNEL);
231 if (!phy->otg) {
232 kfree(phy);
233 return -ENOMEM;
234 }
235
236 phy->label = "ISP1105";
237 phy->init = marxbot_isp1105_init;
238 phy->otg->set_vbus = marxbot_isp1105_set_vbus;
239
240 usbh1_pdata.otg = phy;
241
242 pdev = imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
243
244 return PTR_ERR_OR_ZERO(pdev);
245}
246
247static const struct fsl_usb2_platform_data usb_pdata __initconst = {
248 .operating_mode = FSL_USB2_DR_DEVICE,
249 .phy_mode = FSL_USB2_PHY_ULPI,
250};
251
252
253
254
255void __init mx31moboard_marxbot_init(void)
256{
257 printk(KERN_INFO "Initializing mx31marxbot peripherals\n");
258
259 mxc_iomux_setup_multiple_pins(marxbot_pins, ARRAY_SIZE(marxbot_pins),
260 "marxbot");
261
262 marxbot_init_sel_gpios();
263
264 dspics_resets_init();
265
266 imx31_add_mxc_mmc(1, &sdhc2_pdata);
267
268 spi_register_board_info(marxbot_spi_board_info,
269 ARRAY_SIZE(marxbot_spi_board_info));
270
271
272 gpio_request(IOMUX_TO_GPIO(MX31_PIN_LCS0), "bat-present");
273 gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_LCS0));
274 gpio_export(IOMUX_TO_GPIO(MX31_PIN_LCS0), false);
275
276 imx31_add_fsl_usb2_udc(&usb_pdata);
277
278 marxbot_usbh1_init();
279}
280
