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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * drivers/usb/host/ehci-orion.c
4 *
5 * Tzachi Perelstein <tzachi@marvell.com>
6 */
7
8#include <linux/kernel.h>
9#include <linux/module.h>
10#include <linux/platform_device.h>
11#include <linux/mbus.h>
12#include <linux/clk.h>
13#include <linux/platform_data/usb-ehci-orion.h>
14#include <linux/of.h>
15#include <linux/phy/phy.h>
16#include <linux/usb.h>
17#include <linux/usb/hcd.h>
18#include <linux/io.h>
19#include <linux/dma-mapping.h>
20
21#include "ehci.h"
22
23#define rdl(off) readl_relaxed(hcd->regs + (off))
24#define wrl(off, val) writel_relaxed((val), hcd->regs + (off))
25
26#define USB_CMD 0x140
27#define USB_CMD_RUN BIT(0)
28#define USB_CMD_RESET BIT(1)
29#define USB_MODE 0x1a8
30#define USB_MODE_MASK GENMASK(1, 0)
31#define USB_MODE_DEVICE 0x2
32#define USB_MODE_HOST 0x3
33#define USB_MODE_SDIS BIT(4)
34#define USB_CAUSE 0x310
35#define USB_MASK 0x314
36#define USB_WINDOW_CTRL(i) (0x320 + ((i) << 4))
37#define USB_WINDOW_BASE(i) (0x324 + ((i) << 4))
38#define USB_IPG 0x360
39#define USB_PHY_PWR_CTRL 0x400
40#define USB_PHY_TX_CTRL 0x420
41#define USB_PHY_RX_CTRL 0x430
42#define USB_PHY_IVREF_CTRL 0x440
43#define USB_PHY_TST_GRP_CTRL 0x450
44
45#define USB_SBUSCFG 0x90
46
47/* BAWR = BARD = 3 : Align read/write bursts packets larger than 128 bytes */
48#define USB_SBUSCFG_BAWR_ALIGN_128B (0x3 << 6)
49#define USB_SBUSCFG_BARD_ALIGN_128B (0x3 << 3)
50/* AHBBRST = 3 : Align AHB Burst to INCR16 (64 bytes) */
51#define USB_SBUSCFG_AHBBRST_INCR16 (0x3 << 0)
52
53#define USB_SBUSCFG_DEF_VAL (USB_SBUSCFG_BAWR_ALIGN_128B \
54 | USB_SBUSCFG_BARD_ALIGN_128B \
55 | USB_SBUSCFG_AHBBRST_INCR16)
56
57#define DRIVER_DESC "EHCI orion driver"
58
59#define hcd_to_orion_priv(h) ((struct orion_ehci_hcd *)hcd_to_ehci(h)->priv)
60
61struct orion_ehci_hcd {
62 struct clk *clk;
63 struct phy *phy;
64};
65
66static struct hc_driver __read_mostly ehci_orion_hc_driver;
67
68/*
69 * Implement Orion USB controller specification guidelines
70 */
71static void orion_usb_phy_v1_setup(struct usb_hcd *hcd)
72{
73 /* The below GLs are according to the Orion Errata document */
74 /*
75 * Clear interrupt cause and mask
76 */
77 wrl(USB_CAUSE, 0);
78 wrl(USB_MASK, 0);
79
80 /*
81 * Reset controller
82 */
83 wrl(USB_CMD, rdl(USB_CMD) | USB_CMD_RESET);
84 while (rdl(USB_CMD) & USB_CMD_RESET);
85
86 /*
87 * GL# USB-10: Set IPG for non start of frame packets
88 * Bits[14:8]=0xc
89 */
90 wrl(USB_IPG, (rdl(USB_IPG) & ~0x7f00) | 0xc00);
91
92 /*
93 * GL# USB-9: USB 2.0 Power Control
94 * BG_VSEL[7:6]=0x1
95 */
96 wrl(USB_PHY_PWR_CTRL, (rdl(USB_PHY_PWR_CTRL) & ~0xc0)| 0x40);
97
98 /*
99 * GL# USB-1: USB PHY Tx Control - force calibration to '8'
100 * TXDATA_BLOCK_EN[21]=0x1, EXT_RCAL_EN[13]=0x1, IMP_CAL[6:3]=0x8
101 */
102 wrl(USB_PHY_TX_CTRL, (rdl(USB_PHY_TX_CTRL) & ~0x78) | 0x202040);
103
104 /*
105 * GL# USB-3 GL# USB-9: USB PHY Rx Control
106 * RXDATA_BLOCK_LENGHT[31:30]=0x3, EDGE_DET_SEL[27:26]=0,
107 * CDR_FASTLOCK_EN[21]=0, DISCON_THRESHOLD[9:8]=0, SQ_THRESH[7:4]=0x1
108 */
109 wrl(USB_PHY_RX_CTRL, (rdl(USB_PHY_RX_CTRL) & ~0xc2003f0) | 0xc0000010);
110
111 /*
112 * GL# USB-3 GL# USB-9: USB PHY IVREF Control
113 * PLLVDD12[1:0]=0x2, RXVDD[5:4]=0x3, Reserved[19]=0
114 */
115 wrl(USB_PHY_IVREF_CTRL, (rdl(USB_PHY_IVREF_CTRL) & ~0x80003 ) | 0x32);
116
117 /*
118 * GL# USB-3 GL# USB-9: USB PHY Test Group Control
119 * REG_FIFO_SQ_RST[15]=0
120 */
121 wrl(USB_PHY_TST_GRP_CTRL, rdl(USB_PHY_TST_GRP_CTRL) & ~0x8000);
122
123 /*
124 * Stop and reset controller
125 */
126 wrl(USB_CMD, rdl(USB_CMD) & ~USB_CMD_RUN);
127 wrl(USB_CMD, rdl(USB_CMD) | USB_CMD_RESET);
128 while (rdl(USB_CMD) & USB_CMD_RESET);
129
130 /*
131 * GL# USB-5 Streaming disable REG_USB_MODE[4]=1
132 * TBD: This need to be done after each reset!
133 * GL# USB-4 Setup USB Host mode
134 */
135 wrl(USB_MODE, USB_MODE_SDIS | USB_MODE_HOST);
136}
137
138static void
139ehci_orion_conf_mbus_windows(struct usb_hcd *hcd,
140 const struct mbus_dram_target_info *dram)
141{
142 int i;
143
144 for (i = 0; i < 4; i++) {
145 wrl(USB_WINDOW_CTRL(i), 0);
146 wrl(USB_WINDOW_BASE(i), 0);
147 }
148
149 for (i = 0; i < dram->num_cs; i++) {
150 const struct mbus_dram_window *cs = dram->cs + i;
151
152 wrl(USB_WINDOW_CTRL(i), ((cs->size - 1) & 0xffff0000) |
153 (cs->mbus_attr << 8) |
154 (dram->mbus_dram_target_id << 4) | 1);
155 wrl(USB_WINDOW_BASE(i), cs->base);
156 }
157}
158
159static int ehci_orion_drv_reset(struct usb_hcd *hcd)
160{
161 struct device *dev = hcd->self.controller;
162 int ret;
163
164 ret = ehci_setup(hcd);
165 if (ret)
166 return ret;
167
168 /*
169 * For SoC without hlock, need to program sbuscfg value to guarantee
170 * AHB master's burst would not overrun or underrun FIFO.
171 *
172 * sbuscfg reg has to be set after usb controller reset, otherwise
173 * the value would be override to 0.
174 */
175 if (of_device_is_compatible(dev->of_node, "marvell,armada-3700-ehci"))
176 wrl(USB_SBUSCFG, USB_SBUSCFG_DEF_VAL);
177
178 return ret;
179}
180
181static int __maybe_unused ehci_orion_drv_suspend(struct device *dev)
182{
183 struct usb_hcd *hcd = dev_get_drvdata(dev);
184
185 return ehci_suspend(hcd, device_may_wakeup(dev));
186}
187
188static int __maybe_unused ehci_orion_drv_resume(struct device *dev)
189{
190 struct usb_hcd *hcd = dev_get_drvdata(dev);
191
192 return ehci_resume(hcd, false);
193}
194
195static SIMPLE_DEV_PM_OPS(ehci_orion_pm_ops, ehci_orion_drv_suspend,
196 ehci_orion_drv_resume);
197
198static const struct ehci_driver_overrides orion_overrides __initconst = {
199 .extra_priv_size = sizeof(struct orion_ehci_hcd),
200 .reset = ehci_orion_drv_reset,
201};
202
203static int ehci_orion_drv_probe(struct platform_device *pdev)
204{
205 struct orion_ehci_data *pd = dev_get_platdata(&pdev->dev);
206 const struct mbus_dram_target_info *dram;
207 struct resource *res;
208 struct usb_hcd *hcd;
209 struct ehci_hcd *ehci;
210 void __iomem *regs;
211 int irq, err;
212 enum orion_ehci_phy_ver phy_version;
213 struct orion_ehci_hcd *priv;
214
215 if (usb_disabled())
216 return -ENODEV;
217
218 pr_debug("Initializing Orion-SoC USB Host Controller\n");
219
220 irq = platform_get_irq(pdev, 0);
221 if (irq < 0) {
222 err = irq;
223 goto err;
224 }
225
226 /*
227 * Right now device-tree probed devices don't get dma_mask
228 * set. Since shared usb code relies on it, set it here for
229 * now. Once we have dma capability bindings this can go away.
230 */
231 err = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
232 if (err)
233 goto err;
234
235 regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
236 if (IS_ERR(regs)) {
237 err = PTR_ERR(regs);
238 goto err;
239 }
240
241 hcd = usb_create_hcd(&ehci_orion_hc_driver,
242 &pdev->dev, dev_name(&pdev->dev));
243 if (!hcd) {
244 err = -ENOMEM;
245 goto err;
246 }
247
248 hcd->rsrc_start = res->start;
249 hcd->rsrc_len = resource_size(res);
250 hcd->regs = regs;
251
252 ehci = hcd_to_ehci(hcd);
253 ehci->caps = hcd->regs + 0x100;
254 hcd->has_tt = 1;
255
256 priv = hcd_to_orion_priv(hcd);
257 /*
258 * Not all platforms can gate the clock, so it is not an error if
259 * the clock does not exists.
260 */
261 priv->clk = devm_clk_get(&pdev->dev, NULL);
262 if (!IS_ERR(priv->clk)) {
263 err = clk_prepare_enable(priv->clk);
264 if (err)
265 goto err_put_hcd;
266 }
267
268 priv->phy = devm_phy_optional_get(&pdev->dev, "usb");
269 if (IS_ERR(priv->phy)) {
270 err = PTR_ERR(priv->phy);
271 if (err != -ENOSYS)
272 goto err_dis_clk;
273 }
274
275 /*
276 * (Re-)program MBUS remapping windows if we are asked to.
277 */
278 dram = mv_mbus_dram_info();
279 if (dram)
280 ehci_orion_conf_mbus_windows(hcd, dram);
281
282 /*
283 * setup Orion USB controller.
284 */
285 if (pdev->dev.of_node)
286 phy_version = EHCI_PHY_NA;
287 else
288 phy_version = pd->phy_version;
289
290 switch (phy_version) {
291 case EHCI_PHY_NA: /* dont change USB phy settings */
292 break;
293 case EHCI_PHY_ORION:
294 orion_usb_phy_v1_setup(hcd);
295 break;
296 case EHCI_PHY_DD:
297 case EHCI_PHY_KW:
298 default:
299 dev_warn(&pdev->dev, "USB phy version isn't supported.\n");
300 }
301
302 err = usb_add_hcd(hcd, irq, IRQF_SHARED);
303 if (err)
304 goto err_dis_clk;
305
306 device_wakeup_enable(hcd->self.controller);
307 return 0;
308
309err_dis_clk:
310 if (!IS_ERR(priv->clk))
311 clk_disable_unprepare(priv->clk);
312err_put_hcd:
313 usb_put_hcd(hcd);
314err:
315 dev_err(&pdev->dev, "init %s fail, %d\n",
316 dev_name(&pdev->dev), err);
317
318 return err;
319}
320
321static void ehci_orion_drv_remove(struct platform_device *pdev)
322{
323 struct usb_hcd *hcd = platform_get_drvdata(pdev);
324 struct orion_ehci_hcd *priv = hcd_to_orion_priv(hcd);
325
326 usb_remove_hcd(hcd);
327
328 if (!IS_ERR(priv->clk))
329 clk_disable_unprepare(priv->clk);
330
331 usb_put_hcd(hcd);
332}
333
334static const struct of_device_id ehci_orion_dt_ids[] = {
335 { .compatible = "marvell,orion-ehci", },
336 { .compatible = "marvell,armada-3700-ehci", },
337 {},
338};
339MODULE_DEVICE_TABLE(of, ehci_orion_dt_ids);
340
341static struct platform_driver ehci_orion_driver = {
342 .probe = ehci_orion_drv_probe,
343 .remove_new = ehci_orion_drv_remove,
344 .shutdown = usb_hcd_platform_shutdown,
345 .driver = {
346 .name = "orion-ehci",
347 .of_match_table = ehci_orion_dt_ids,
348 .pm = &ehci_orion_pm_ops,
349 },
350};
351
352static int __init ehci_orion_init(void)
353{
354 if (usb_disabled())
355 return -ENODEV;
356
357 ehci_init_driver(&ehci_orion_hc_driver, &orion_overrides);
358 return platform_driver_register(&ehci_orion_driver);
359}
360module_init(ehci_orion_init);
361
362static void __exit ehci_orion_cleanup(void)
363{
364 platform_driver_unregister(&ehci_orion_driver);
365}
366module_exit(ehci_orion_cleanup);
367
368MODULE_DESCRIPTION(DRIVER_DESC);
369MODULE_ALIAS("platform:orion-ehci");
370MODULE_AUTHOR("Tzachi Perelstein");
371MODULE_LICENSE("GPL v2");
1/*
2 * drivers/usb/host/ehci-orion.c
3 *
4 * Tzachi Perelstein <tzachi@marvell.com>
5 *
6 * This file is licensed under the terms of the GNU General Public
7 * License version 2. This program is licensed "as is" without any
8 * warranty of any kind, whether express or implied.
9 */
10
11#include <linux/kernel.h>
12#include <linux/module.h>
13#include <linux/platform_device.h>
14#include <linux/mbus.h>
15#include <linux/clk.h>
16#include <linux/platform_data/usb-ehci-orion.h>
17#include <linux/of.h>
18#include <linux/of_device.h>
19#include <linux/of_irq.h>
20#include <linux/usb.h>
21#include <linux/usb/hcd.h>
22#include <linux/io.h>
23#include <linux/dma-mapping.h>
24
25#include "ehci.h"
26
27#define rdl(off) __raw_readl(hcd->regs + (off))
28#define wrl(off, val) __raw_writel((val), hcd->regs + (off))
29
30#define USB_CMD 0x140
31#define USB_MODE 0x1a8
32#define USB_CAUSE 0x310
33#define USB_MASK 0x314
34#define USB_WINDOW_CTRL(i) (0x320 + ((i) << 4))
35#define USB_WINDOW_BASE(i) (0x324 + ((i) << 4))
36#define USB_IPG 0x360
37#define USB_PHY_PWR_CTRL 0x400
38#define USB_PHY_TX_CTRL 0x420
39#define USB_PHY_RX_CTRL 0x430
40#define USB_PHY_IVREF_CTRL 0x440
41#define USB_PHY_TST_GRP_CTRL 0x450
42
43#define DRIVER_DESC "EHCI orion driver"
44
45static const char hcd_name[] = "ehci-orion";
46
47static struct hc_driver __read_mostly ehci_orion_hc_driver;
48
49/*
50 * Implement Orion USB controller specification guidelines
51 */
52static void orion_usb_phy_v1_setup(struct usb_hcd *hcd)
53{
54 /* The below GLs are according to the Orion Errata document */
55 /*
56 * Clear interrupt cause and mask
57 */
58 wrl(USB_CAUSE, 0);
59 wrl(USB_MASK, 0);
60
61 /*
62 * Reset controller
63 */
64 wrl(USB_CMD, rdl(USB_CMD) | 0x2);
65 while (rdl(USB_CMD) & 0x2);
66
67 /*
68 * GL# USB-10: Set IPG for non start of frame packets
69 * Bits[14:8]=0xc
70 */
71 wrl(USB_IPG, (rdl(USB_IPG) & ~0x7f00) | 0xc00);
72
73 /*
74 * GL# USB-9: USB 2.0 Power Control
75 * BG_VSEL[7:6]=0x1
76 */
77 wrl(USB_PHY_PWR_CTRL, (rdl(USB_PHY_PWR_CTRL) & ~0xc0)| 0x40);
78
79 /*
80 * GL# USB-1: USB PHY Tx Control - force calibration to '8'
81 * TXDATA_BLOCK_EN[21]=0x1, EXT_RCAL_EN[13]=0x1, IMP_CAL[6:3]=0x8
82 */
83 wrl(USB_PHY_TX_CTRL, (rdl(USB_PHY_TX_CTRL) & ~0x78) | 0x202040);
84
85 /*
86 * GL# USB-3 GL# USB-9: USB PHY Rx Control
87 * RXDATA_BLOCK_LENGHT[31:30]=0x3, EDGE_DET_SEL[27:26]=0,
88 * CDR_FASTLOCK_EN[21]=0, DISCON_THRESHOLD[9:8]=0, SQ_THRESH[7:4]=0x1
89 */
90 wrl(USB_PHY_RX_CTRL, (rdl(USB_PHY_RX_CTRL) & ~0xc2003f0) | 0xc0000010);
91
92 /*
93 * GL# USB-3 GL# USB-9: USB PHY IVREF Control
94 * PLLVDD12[1:0]=0x2, RXVDD[5:4]=0x3, Reserved[19]=0
95 */
96 wrl(USB_PHY_IVREF_CTRL, (rdl(USB_PHY_IVREF_CTRL) & ~0x80003 ) | 0x32);
97
98 /*
99 * GL# USB-3 GL# USB-9: USB PHY Test Group Control
100 * REG_FIFO_SQ_RST[15]=0
101 */
102 wrl(USB_PHY_TST_GRP_CTRL, rdl(USB_PHY_TST_GRP_CTRL) & ~0x8000);
103
104 /*
105 * Stop and reset controller
106 */
107 wrl(USB_CMD, rdl(USB_CMD) & ~0x1);
108 wrl(USB_CMD, rdl(USB_CMD) | 0x2);
109 while (rdl(USB_CMD) & 0x2);
110
111 /*
112 * GL# USB-5 Streaming disable REG_USB_MODE[4]=1
113 * TBD: This need to be done after each reset!
114 * GL# USB-4 Setup USB Host mode
115 */
116 wrl(USB_MODE, 0x13);
117}
118
119static void
120ehci_orion_conf_mbus_windows(struct usb_hcd *hcd,
121 const struct mbus_dram_target_info *dram)
122{
123 int i;
124
125 for (i = 0; i < 4; i++) {
126 wrl(USB_WINDOW_CTRL(i), 0);
127 wrl(USB_WINDOW_BASE(i), 0);
128 }
129
130 for (i = 0; i < dram->num_cs; i++) {
131 const struct mbus_dram_window *cs = dram->cs + i;
132
133 wrl(USB_WINDOW_CTRL(i), ((cs->size - 1) & 0xffff0000) |
134 (cs->mbus_attr << 8) |
135 (dram->mbus_dram_target_id << 4) | 1);
136 wrl(USB_WINDOW_BASE(i), cs->base);
137 }
138}
139
140static int ehci_orion_drv_probe(struct platform_device *pdev)
141{
142 struct orion_ehci_data *pd = dev_get_platdata(&pdev->dev);
143 const struct mbus_dram_target_info *dram;
144 struct resource *res;
145 struct usb_hcd *hcd;
146 struct ehci_hcd *ehci;
147 struct clk *clk;
148 void __iomem *regs;
149 int irq, err;
150 enum orion_ehci_phy_ver phy_version;
151
152 if (usb_disabled())
153 return -ENODEV;
154
155 pr_debug("Initializing Orion-SoC USB Host Controller\n");
156
157 if (pdev->dev.of_node)
158 irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
159 else
160 irq = platform_get_irq(pdev, 0);
161 if (irq <= 0) {
162 dev_err(&pdev->dev,
163 "Found HC with no IRQ. Check %s setup!\n",
164 dev_name(&pdev->dev));
165 err = -ENODEV;
166 goto err1;
167 }
168
169 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
170 if (!res) {
171 dev_err(&pdev->dev,
172 "Found HC with no register addr. Check %s setup!\n",
173 dev_name(&pdev->dev));
174 err = -ENODEV;
175 goto err1;
176 }
177
178 /*
179 * Right now device-tree probed devices don't get dma_mask
180 * set. Since shared usb code relies on it, set it here for
181 * now. Once we have dma capability bindings this can go away.
182 */
183 err = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
184 if (err)
185 goto err1;
186
187 regs = devm_ioremap_resource(&pdev->dev, res);
188 if (IS_ERR(regs)) {
189 err = PTR_ERR(regs);
190 goto err1;
191 }
192
193 /* Not all platforms can gate the clock, so it is not
194 an error if the clock does not exists. */
195 clk = devm_clk_get(&pdev->dev, NULL);
196 if (!IS_ERR(clk))
197 clk_prepare_enable(clk);
198
199 hcd = usb_create_hcd(&ehci_orion_hc_driver,
200 &pdev->dev, dev_name(&pdev->dev));
201 if (!hcd) {
202 err = -ENOMEM;
203 goto err2;
204 }
205
206 hcd->rsrc_start = res->start;
207 hcd->rsrc_len = resource_size(res);
208 hcd->regs = regs;
209
210 ehci = hcd_to_ehci(hcd);
211 ehci->caps = hcd->regs + 0x100;
212 hcd->has_tt = 1;
213
214 /*
215 * (Re-)program MBUS remapping windows if we are asked to.
216 */
217 dram = mv_mbus_dram_info();
218 if (dram)
219 ehci_orion_conf_mbus_windows(hcd, dram);
220
221 /*
222 * setup Orion USB controller.
223 */
224 if (pdev->dev.of_node)
225 phy_version = EHCI_PHY_NA;
226 else
227 phy_version = pd->phy_version;
228
229 switch (phy_version) {
230 case EHCI_PHY_NA: /* dont change USB phy settings */
231 break;
232 case EHCI_PHY_ORION:
233 orion_usb_phy_v1_setup(hcd);
234 break;
235 case EHCI_PHY_DD:
236 case EHCI_PHY_KW:
237 default:
238 dev_warn(&pdev->dev, "USB phy version isn't supported.\n");
239 }
240
241 err = usb_add_hcd(hcd, irq, IRQF_SHARED);
242 if (err)
243 goto err3;
244
245 device_wakeup_enable(hcd->self.controller);
246 return 0;
247
248err3:
249 usb_put_hcd(hcd);
250err2:
251 if (!IS_ERR(clk))
252 clk_disable_unprepare(clk);
253err1:
254 dev_err(&pdev->dev, "init %s fail, %d\n",
255 dev_name(&pdev->dev), err);
256
257 return err;
258}
259
260static int ehci_orion_drv_remove(struct platform_device *pdev)
261{
262 struct usb_hcd *hcd = platform_get_drvdata(pdev);
263 struct clk *clk;
264
265 usb_remove_hcd(hcd);
266 usb_put_hcd(hcd);
267
268 clk = devm_clk_get(&pdev->dev, NULL);
269 if (!IS_ERR(clk))
270 clk_disable_unprepare(clk);
271 return 0;
272}
273
274static const struct of_device_id ehci_orion_dt_ids[] = {
275 { .compatible = "marvell,orion-ehci", },
276 {},
277};
278MODULE_DEVICE_TABLE(of, ehci_orion_dt_ids);
279
280static struct platform_driver ehci_orion_driver = {
281 .probe = ehci_orion_drv_probe,
282 .remove = ehci_orion_drv_remove,
283 .shutdown = usb_hcd_platform_shutdown,
284 .driver = {
285 .name = "orion-ehci",
286 .owner = THIS_MODULE,
287 .of_match_table = ehci_orion_dt_ids,
288 },
289};
290
291static int __init ehci_orion_init(void)
292{
293 if (usb_disabled())
294 return -ENODEV;
295
296 pr_info("%s: " DRIVER_DESC "\n", hcd_name);
297
298 ehci_init_driver(&ehci_orion_hc_driver, NULL);
299 return platform_driver_register(&ehci_orion_driver);
300}
301module_init(ehci_orion_init);
302
303static void __exit ehci_orion_cleanup(void)
304{
305 platform_driver_unregister(&ehci_orion_driver);
306}
307module_exit(ehci_orion_cleanup);
308
309MODULE_DESCRIPTION(DRIVER_DESC);
310MODULE_ALIAS("platform:orion-ehci");
311MODULE_AUTHOR("Tzachi Perelstein");
312MODULE_LICENSE("GPL v2");