Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 1 | /** |
| 2 | * dwc3-omap.c - OMAP Specific Glue layer |
| 3 | * |
| 4 | * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 5 | * |
| 6 | * Authors: Felipe Balbi <balbi@ti.com>, |
| 7 | * Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
| 8 | * |
| 9 | * Redistribution and use in source and binary forms, with or without |
| 10 | * modification, are permitted provided that the following conditions |
| 11 | * are met: |
| 12 | * 1. Redistributions of source code must retain the above copyright |
| 13 | * notice, this list of conditions, and the following disclaimer, |
| 14 | * without modification. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * 3. The names of the above-listed copyright holders may not be used |
| 19 | * to endorse or promote products derived from this software without |
| 20 | * specific prior written permission. |
| 21 | * |
| 22 | * ALTERNATIVELY, this software may be distributed under the terms of the |
| 23 | * GNU General Public License ("GPL") version 2, as published by the Free |
| 24 | * Software Foundation. |
| 25 | * |
| 26 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
| 27 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| 28 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 29 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| 30 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 31 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 32 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 33 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 34 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 35 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 36 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 37 | */ |
| 38 | |
Felipe Balbi | a72e658 | 2011-09-05 13:37:28 +0300 | [diff] [blame] | 39 | #include <linux/module.h> |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 40 | #include <linux/kernel.h> |
| 41 | #include <linux/slab.h> |
| 42 | #include <linux/interrupt.h> |
| 43 | #include <linux/spinlock.h> |
| 44 | #include <linux/platform_device.h> |
Felipe Balbi | 9962444 | 2011-09-01 22:26:25 +0300 | [diff] [blame] | 45 | #include <linux/platform_data/dwc3-omap.h> |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 46 | #include <linux/dma-mapping.h> |
| 47 | #include <linux/ioport.h> |
| 48 | #include <linux/io.h> |
Felipe Balbi | 45b3cd4a | 2012-01-25 11:07:03 +0200 | [diff] [blame] | 49 | #include <linux/of.h> |
Paul Gortmaker | 2204fde | 2011-09-30 18:08:59 -0400 | [diff] [blame] | 50 | #include <linux/module.h> |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 51 | |
Felipe Balbi | 5ddcee2 | 2011-10-18 13:58:30 +0300 | [diff] [blame] | 52 | #include "core.h" |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 53 | #include "io.h" |
| 54 | |
| 55 | /* |
| 56 | * All these registers belong to OMAP's Wrapper around the |
| 57 | * DesignWare USB3 Core. |
| 58 | */ |
| 59 | |
| 60 | #define USBOTGSS_REVISION 0x0000 |
| 61 | #define USBOTGSS_SYSCONFIG 0x0010 |
| 62 | #define USBOTGSS_IRQ_EOI 0x0020 |
| 63 | #define USBOTGSS_IRQSTATUS_RAW_0 0x0024 |
| 64 | #define USBOTGSS_IRQSTATUS_0 0x0028 |
| 65 | #define USBOTGSS_IRQENABLE_SET_0 0x002c |
| 66 | #define USBOTGSS_IRQENABLE_CLR_0 0x0030 |
| 67 | #define USBOTGSS_IRQSTATUS_RAW_1 0x0034 |
| 68 | #define USBOTGSS_IRQSTATUS_1 0x0038 |
| 69 | #define USBOTGSS_IRQENABLE_SET_1 0x003c |
| 70 | #define USBOTGSS_IRQENABLE_CLR_1 0x0040 |
| 71 | #define USBOTGSS_UTMI_OTG_CTRL 0x0080 |
| 72 | #define USBOTGSS_UTMI_OTG_STATUS 0x0084 |
| 73 | #define USBOTGSS_MMRAM_OFFSET 0x0100 |
| 74 | #define USBOTGSS_FLADJ 0x0104 |
| 75 | #define USBOTGSS_DEBUG_CFG 0x0108 |
| 76 | #define USBOTGSS_DEBUG_DATA 0x010c |
| 77 | |
| 78 | /* SYSCONFIG REGISTER */ |
| 79 | #define USBOTGSS_SYSCONFIG_DMADISABLE (1 << 16) |
| 80 | #define USBOTGSS_SYSCONFIG_STANDBYMODE(x) ((x) << 4) |
Felipe Balbi | 4b5faa7a | 2011-09-06 10:56:51 +0300 | [diff] [blame] | 81 | |
| 82 | #define USBOTGSS_STANDBYMODE_FORCE_STANDBY 0 |
| 83 | #define USBOTGSS_STANDBYMODE_NO_STANDBY 1 |
| 84 | #define USBOTGSS_STANDBYMODE_SMART_STANDBY 2 |
| 85 | #define USBOTGSS_STANDBYMODE_SMART_WAKEUP 3 |
| 86 | |
| 87 | #define USBOTGSS_STANDBYMODE_MASK (0x03 << 4) |
| 88 | |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 89 | #define USBOTGSS_SYSCONFIG_IDLEMODE(x) ((x) << 2) |
| 90 | |
Felipe Balbi | 4b5faa7a | 2011-09-06 10:56:51 +0300 | [diff] [blame] | 91 | #define USBOTGSS_IDLEMODE_FORCE_IDLE 0 |
| 92 | #define USBOTGSS_IDLEMODE_NO_IDLE 1 |
| 93 | #define USBOTGSS_IDLEMODE_SMART_IDLE 2 |
| 94 | #define USBOTGSS_IDLEMODE_SMART_WAKEUP 3 |
| 95 | |
| 96 | #define USBOTGSS_IDLEMODE_MASK (0x03 << 2) |
| 97 | |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 98 | /* IRQ_EOI REGISTER */ |
| 99 | #define USBOTGSS_IRQ_EOI_LINE_NUMBER (1 << 0) |
| 100 | |
| 101 | /* IRQS0 BITS */ |
| 102 | #define USBOTGSS_IRQO_COREIRQ_ST (1 << 0) |
| 103 | |
| 104 | /* IRQ1 BITS */ |
| 105 | #define USBOTGSS_IRQ1_DMADISABLECLR (1 << 17) |
| 106 | #define USBOTGSS_IRQ1_OEVT (1 << 16) |
| 107 | #define USBOTGSS_IRQ1_DRVVBUS_RISE (1 << 13) |
| 108 | #define USBOTGSS_IRQ1_CHRGVBUS_RISE (1 << 12) |
| 109 | #define USBOTGSS_IRQ1_DISCHRGVBUS_RISE (1 << 11) |
| 110 | #define USBOTGSS_IRQ1_IDPULLUP_RISE (1 << 8) |
| 111 | #define USBOTGSS_IRQ1_DRVVBUS_FALL (1 << 5) |
| 112 | #define USBOTGSS_IRQ1_CHRGVBUS_FALL (1 << 4) |
| 113 | #define USBOTGSS_IRQ1_DISCHRGVBUS_FALL (1 << 3) |
| 114 | #define USBOTGSS_IRQ1_IDPULLUP_FALL (1 << 0) |
| 115 | |
| 116 | /* UTMI_OTG_CTRL REGISTER */ |
| 117 | #define USBOTGSS_UTMI_OTG_CTRL_DRVVBUS (1 << 5) |
| 118 | #define USBOTGSS_UTMI_OTG_CTRL_CHRGVBUS (1 << 4) |
| 119 | #define USBOTGSS_UTMI_OTG_CTRL_DISCHRGVBUS (1 << 3) |
| 120 | #define USBOTGSS_UTMI_OTG_CTRL_IDPULLUP (1 << 0) |
| 121 | |
| 122 | /* UTMI_OTG_STATUS REGISTER */ |
| 123 | #define USBOTGSS_UTMI_OTG_STATUS_SW_MODE (1 << 31) |
| 124 | #define USBOTGSS_UTMI_OTG_STATUS_POWERPRESENT (1 << 9) |
| 125 | #define USBOTGSS_UTMI_OTG_STATUS_TXBITSTUFFENABLE (1 << 8) |
| 126 | #define USBOTGSS_UTMI_OTG_STATUS_IDDIG (1 << 4) |
| 127 | #define USBOTGSS_UTMI_OTG_STATUS_SESSEND (1 << 3) |
| 128 | #define USBOTGSS_UTMI_OTG_STATUS_SESSVALID (1 << 2) |
| 129 | #define USBOTGSS_UTMI_OTG_STATUS_VBUSVALID (1 << 1) |
| 130 | |
| 131 | struct dwc3_omap { |
| 132 | /* device lock */ |
| 133 | spinlock_t lock; |
| 134 | |
| 135 | struct platform_device *dwc3; |
| 136 | struct device *dev; |
| 137 | |
| 138 | int irq; |
| 139 | void __iomem *base; |
| 140 | |
| 141 | void *context; |
| 142 | u32 resource_size; |
| 143 | |
| 144 | u32 dma_status:1; |
| 145 | }; |
| 146 | |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 147 | static irqreturn_t dwc3_omap_interrupt(int irq, void *_omap) |
| 148 | { |
| 149 | struct dwc3_omap *omap = _omap; |
| 150 | u32 reg; |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 151 | |
| 152 | spin_lock(&omap->lock); |
| 153 | |
| 154 | reg = dwc3_readl(omap->base, USBOTGSS_IRQSTATUS_1); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 155 | |
| 156 | if (reg & USBOTGSS_IRQ1_DMADISABLECLR) { |
Felipe Balbi | ccba3bc | 2011-09-01 14:46:16 +0300 | [diff] [blame] | 157 | dev_dbg(omap->dev, "DMA Disable was Cleared\n"); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 158 | omap->dma_status = false; |
| 159 | } |
| 160 | |
| 161 | if (reg & USBOTGSS_IRQ1_OEVT) |
Felipe Balbi | ccba3bc | 2011-09-01 14:46:16 +0300 | [diff] [blame] | 162 | dev_dbg(omap->dev, "OTG Event\n"); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 163 | |
Felipe Balbi | 42077b0 | 2011-09-06 12:00:39 +0300 | [diff] [blame] | 164 | if (reg & USBOTGSS_IRQ1_DRVVBUS_RISE) |
Felipe Balbi | ccba3bc | 2011-09-01 14:46:16 +0300 | [diff] [blame] | 165 | dev_dbg(omap->dev, "DRVVBUS Rise\n"); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 166 | |
Felipe Balbi | 42077b0 | 2011-09-06 12:00:39 +0300 | [diff] [blame] | 167 | if (reg & USBOTGSS_IRQ1_CHRGVBUS_RISE) |
Felipe Balbi | ccba3bc | 2011-09-01 14:46:16 +0300 | [diff] [blame] | 168 | dev_dbg(omap->dev, "CHRGVBUS Rise\n"); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 169 | |
Felipe Balbi | 42077b0 | 2011-09-06 12:00:39 +0300 | [diff] [blame] | 170 | if (reg & USBOTGSS_IRQ1_DISCHRGVBUS_RISE) |
Felipe Balbi | ccba3bc | 2011-09-01 14:46:16 +0300 | [diff] [blame] | 171 | dev_dbg(omap->dev, "DISCHRGVBUS Rise\n"); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 172 | |
Felipe Balbi | 42077b0 | 2011-09-06 12:00:39 +0300 | [diff] [blame] | 173 | if (reg & USBOTGSS_IRQ1_IDPULLUP_RISE) |
Felipe Balbi | ccba3bc | 2011-09-01 14:46:16 +0300 | [diff] [blame] | 174 | dev_dbg(omap->dev, "IDPULLUP Rise\n"); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 175 | |
Felipe Balbi | 42077b0 | 2011-09-06 12:00:39 +0300 | [diff] [blame] | 176 | if (reg & USBOTGSS_IRQ1_DRVVBUS_FALL) |
Felipe Balbi | ccba3bc | 2011-09-01 14:46:16 +0300 | [diff] [blame] | 177 | dev_dbg(omap->dev, "DRVVBUS Fall\n"); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 178 | |
Felipe Balbi | 42077b0 | 2011-09-06 12:00:39 +0300 | [diff] [blame] | 179 | if (reg & USBOTGSS_IRQ1_CHRGVBUS_FALL) |
Felipe Balbi | ccba3bc | 2011-09-01 14:46:16 +0300 | [diff] [blame] | 180 | dev_dbg(omap->dev, "CHRGVBUS Fall\n"); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 181 | |
Felipe Balbi | 42077b0 | 2011-09-06 12:00:39 +0300 | [diff] [blame] | 182 | if (reg & USBOTGSS_IRQ1_DISCHRGVBUS_FALL) |
Felipe Balbi | ccba3bc | 2011-09-01 14:46:16 +0300 | [diff] [blame] | 183 | dev_dbg(omap->dev, "DISCHRGVBUS Fall\n"); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 184 | |
Felipe Balbi | 42077b0 | 2011-09-06 12:00:39 +0300 | [diff] [blame] | 185 | if (reg & USBOTGSS_IRQ1_IDPULLUP_FALL) |
Felipe Balbi | ccba3bc | 2011-09-01 14:46:16 +0300 | [diff] [blame] | 186 | dev_dbg(omap->dev, "IDPULLUP Fall\n"); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 187 | |
Felipe Balbi | 42077b0 | 2011-09-06 12:00:39 +0300 | [diff] [blame] | 188 | dwc3_writel(omap->base, USBOTGSS_IRQSTATUS_1, reg); |
| 189 | |
| 190 | reg = dwc3_readl(omap->base, USBOTGSS_IRQSTATUS_0); |
| 191 | dwc3_writel(omap->base, USBOTGSS_IRQSTATUS_0, reg); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 192 | |
| 193 | spin_unlock(&omap->lock); |
| 194 | |
| 195 | return IRQ_HANDLED; |
| 196 | } |
| 197 | |
| 198 | static int __devinit dwc3_omap_probe(struct platform_device *pdev) |
| 199 | { |
Felipe Balbi | 9962444 | 2011-09-01 22:26:25 +0300 | [diff] [blame] | 200 | struct dwc3_omap_data *pdata = pdev->dev.platform_data; |
Felipe Balbi | 45b3cd4a | 2012-01-25 11:07:03 +0200 | [diff] [blame] | 201 | struct device_node *node = pdev->dev.of_node; |
| 202 | |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 203 | struct platform_device *dwc3; |
| 204 | struct dwc3_omap *omap; |
| 205 | struct resource *res; |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 206 | struct device *dev = &pdev->dev; |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 207 | |
Felipe Balbi | 5ddcee2 | 2011-10-18 13:58:30 +0300 | [diff] [blame] | 208 | int devid; |
Felipe Balbi | 45b3cd4a | 2012-01-25 11:07:03 +0200 | [diff] [blame] | 209 | int size; |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 210 | int ret = -ENOMEM; |
| 211 | int irq; |
| 212 | |
Felipe Balbi | 45b3cd4a | 2012-01-25 11:07:03 +0200 | [diff] [blame] | 213 | const u32 *utmi_mode; |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 214 | u32 reg; |
| 215 | |
| 216 | void __iomem *base; |
| 217 | void *context; |
| 218 | |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 219 | omap = devm_kzalloc(dev, sizeof(*omap), GFP_KERNEL); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 220 | if (!omap) { |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 221 | dev_err(dev, "not enough memory\n"); |
| 222 | return -ENOMEM; |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 223 | } |
| 224 | |
| 225 | platform_set_drvdata(pdev, omap); |
| 226 | |
| 227 | irq = platform_get_irq(pdev, 1); |
| 228 | if (irq < 0) { |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 229 | dev_err(dev, "missing IRQ resource\n"); |
| 230 | return -EINVAL; |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 231 | } |
| 232 | |
| 233 | res = platform_get_resource(pdev, IORESOURCE_MEM, 1); |
| 234 | if (!res) { |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 235 | dev_err(dev, "missing memory base resource\n"); |
| 236 | return -EINVAL; |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 237 | } |
| 238 | |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 239 | base = devm_ioremap_nocache(dev, res->start, resource_size(res)); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 240 | if (!base) { |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 241 | dev_err(dev, "ioremap failed\n"); |
| 242 | return -ENOMEM; |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 243 | } |
| 244 | |
Felipe Balbi | 5ddcee2 | 2011-10-18 13:58:30 +0300 | [diff] [blame] | 245 | devid = dwc3_get_device_id(); |
| 246 | if (devid < 0) |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 247 | return -ENODEV; |
Felipe Balbi | 5ddcee2 | 2011-10-18 13:58:30 +0300 | [diff] [blame] | 248 | |
| 249 | dwc3 = platform_device_alloc("dwc3", devid); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 250 | if (!dwc3) { |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 251 | dev_err(dev, "couldn't allocate dwc3 device\n"); |
| 252 | goto err1; |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 253 | } |
| 254 | |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 255 | context = devm_kzalloc(dev, resource_size(res), GFP_KERNEL); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 256 | if (!context) { |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 257 | dev_err(dev, "couldn't allocate dwc3 context memory\n"); |
| 258 | goto err2; |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 259 | } |
| 260 | |
| 261 | spin_lock_init(&omap->lock); |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 262 | dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 263 | |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 264 | dwc3->dev.parent = dev; |
| 265 | dwc3->dev.dma_mask = dev->dma_mask; |
| 266 | dwc3->dev.dma_parms = dev->dma_parms; |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 267 | omap->resource_size = resource_size(res); |
| 268 | omap->context = context; |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 269 | omap->dev = dev; |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 270 | omap->irq = irq; |
| 271 | omap->base = base; |
| 272 | omap->dwc3 = dwc3; |
| 273 | |
Felipe Balbi | 9962444 | 2011-09-01 22:26:25 +0300 | [diff] [blame] | 274 | reg = dwc3_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS); |
| 275 | |
Felipe Balbi | 45b3cd4a | 2012-01-25 11:07:03 +0200 | [diff] [blame] | 276 | utmi_mode = of_get_property(node, "utmi-mode", &size); |
| 277 | if (utmi_mode && size == sizeof(*utmi_mode)) { |
| 278 | reg |= *utmi_mode; |
Felipe Balbi | 9962444 | 2011-09-01 22:26:25 +0300 | [diff] [blame] | 279 | } else { |
Felipe Balbi | 45b3cd4a | 2012-01-25 11:07:03 +0200 | [diff] [blame] | 280 | if (!pdata) { |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 281 | dev_dbg(dev, "missing platform data\n"); |
Felipe Balbi | 45b3cd4a | 2012-01-25 11:07:03 +0200 | [diff] [blame] | 282 | } else { |
| 283 | switch (pdata->utmi_mode) { |
| 284 | case DWC3_OMAP_UTMI_MODE_SW: |
| 285 | reg |= USBOTGSS_UTMI_OTG_STATUS_SW_MODE; |
| 286 | break; |
| 287 | case DWC3_OMAP_UTMI_MODE_HW: |
| 288 | reg &= ~USBOTGSS_UTMI_OTG_STATUS_SW_MODE; |
| 289 | break; |
| 290 | default: |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 291 | dev_dbg(dev, "UNKNOWN utmi mode %d\n", |
Felipe Balbi | 45b3cd4a | 2012-01-25 11:07:03 +0200 | [diff] [blame] | 292 | pdata->utmi_mode); |
| 293 | } |
Felipe Balbi | 9962444 | 2011-09-01 22:26:25 +0300 | [diff] [blame] | 294 | } |
| 295 | } |
| 296 | |
| 297 | dwc3_writel(omap->base, USBOTGSS_UTMI_OTG_STATUS, reg); |
| 298 | |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 299 | /* check the DMA Status */ |
| 300 | reg = dwc3_readl(omap->base, USBOTGSS_SYSCONFIG); |
| 301 | omap->dma_status = !!(reg & USBOTGSS_SYSCONFIG_DMADISABLE); |
| 302 | |
Felipe Balbi | 4b5faa7a | 2011-09-06 10:56:51 +0300 | [diff] [blame] | 303 | /* Set No-Idle and No-Standby */ |
| 304 | reg &= ~(USBOTGSS_STANDBYMODE_MASK |
| 305 | | USBOTGSS_IDLEMODE_MASK); |
| 306 | |
| 307 | reg |= (USBOTGSS_SYSCONFIG_STANDBYMODE(USBOTGSS_STANDBYMODE_NO_STANDBY) |
| 308 | | USBOTGSS_SYSCONFIG_IDLEMODE(USBOTGSS_IDLEMODE_NO_IDLE)); |
| 309 | |
| 310 | dwc3_writel(omap->base, USBOTGSS_SYSCONFIG, reg); |
| 311 | |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 312 | ret = devm_request_irq(dev, omap->irq, dwc3_omap_interrupt, 0, |
Felipe Balbi | dd17a6b | 2011-09-06 10:57:41 +0300 | [diff] [blame] | 313 | "dwc3-omap", omap); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 314 | if (ret) { |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 315 | dev_err(dev, "failed to request IRQ #%d --> %d\n", |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 316 | omap->irq, ret); |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 317 | goto err2; |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 318 | } |
| 319 | |
| 320 | /* enable all IRQs */ |
Felipe Balbi | df01c61 | 2011-09-01 18:22:01 +0300 | [diff] [blame] | 321 | reg = USBOTGSS_IRQO_COREIRQ_ST; |
| 322 | dwc3_writel(omap->base, USBOTGSS_IRQENABLE_SET_0, reg); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 323 | |
Felipe Balbi | 324e548 | 2011-09-01 14:52:52 +0300 | [diff] [blame] | 324 | reg = (USBOTGSS_IRQ1_OEVT | |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 325 | USBOTGSS_IRQ1_DRVVBUS_RISE | |
| 326 | USBOTGSS_IRQ1_CHRGVBUS_RISE | |
| 327 | USBOTGSS_IRQ1_DISCHRGVBUS_RISE | |
| 328 | USBOTGSS_IRQ1_IDPULLUP_RISE | |
| 329 | USBOTGSS_IRQ1_DRVVBUS_FALL | |
| 330 | USBOTGSS_IRQ1_CHRGVBUS_FALL | |
| 331 | USBOTGSS_IRQ1_DISCHRGVBUS_FALL | |
| 332 | USBOTGSS_IRQ1_IDPULLUP_FALL); |
| 333 | |
| 334 | dwc3_writel(omap->base, USBOTGSS_IRQENABLE_SET_1, reg); |
| 335 | |
| 336 | ret = platform_device_add_resources(dwc3, pdev->resource, |
| 337 | pdev->num_resources); |
| 338 | if (ret) { |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 339 | dev_err(dev, "couldn't add resources to dwc3 device\n"); |
| 340 | goto err2; |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 341 | } |
| 342 | |
| 343 | ret = platform_device_add(dwc3); |
| 344 | if (ret) { |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 345 | dev_err(dev, "failed to register dwc3 device\n"); |
| 346 | goto err2; |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 347 | } |
| 348 | |
| 349 | return 0; |
| 350 | |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 351 | err2: |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 352 | platform_device_put(dwc3); |
| 353 | |
Chanho Park | 802ca85 | 2012-02-15 18:27:55 +0900 | [diff] [blame^] | 354 | err1: |
Felipe Balbi | 5ddcee2 | 2011-10-18 13:58:30 +0300 | [diff] [blame] | 355 | dwc3_put_device_id(devid); |
| 356 | |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 357 | return ret; |
| 358 | } |
| 359 | |
| 360 | static int __devexit dwc3_omap_remove(struct platform_device *pdev) |
| 361 | { |
| 362 | struct dwc3_omap *omap = platform_get_drvdata(pdev); |
| 363 | |
| 364 | platform_device_unregister(omap->dwc3); |
| 365 | |
Felipe Balbi | 5ddcee2 | 2011-10-18 13:58:30 +0300 | [diff] [blame] | 366 | dwc3_put_device_id(omap->dwc3->id); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 367 | |
| 368 | return 0; |
| 369 | } |
| 370 | |
| 371 | static const struct of_device_id of_dwc3_matach[] = { |
| 372 | { |
| 373 | "ti,dwc3", |
| 374 | }, |
| 375 | { }, |
| 376 | }; |
| 377 | MODULE_DEVICE_TABLE(of, of_dwc3_matach); |
| 378 | |
| 379 | static struct platform_driver dwc3_omap_driver = { |
| 380 | .probe = dwc3_omap_probe, |
| 381 | .remove = __devexit_p(dwc3_omap_remove), |
| 382 | .driver = { |
| 383 | .name = "omap-dwc3", |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 384 | .of_match_table = of_dwc3_matach, |
| 385 | }, |
| 386 | }; |
| 387 | |
Axel Lin | cc27c96 | 2011-11-27 20:16:27 +0800 | [diff] [blame] | 388 | module_platform_driver(dwc3_omap_driver); |
| 389 | |
Sebastian Andrzej Siewior | 7ae4fc4 | 2011-10-19 19:39:50 +0200 | [diff] [blame] | 390 | MODULE_ALIAS("platform:omap-dwc3"); |
Felipe Balbi | 72246da | 2011-08-19 18:10:58 +0300 | [diff] [blame] | 391 | MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); |
| 392 | MODULE_LICENSE("Dual BSD/GPL"); |
| 393 | MODULE_DESCRIPTION("DesignWare USB3 OMAP Glue Layer"); |