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9e54eae2 | 1 | /* |
8b789d89 | 2 | * copyright (c) 2013 Freescale Semiconductor, Inc. |
9e54eae2 | 3 | * Freescale IMX AHCI SATA platform driver |
9e54eae2 RZ |
4 | * |
5 | * based on the AHCI SATA platform driver by Jeff Garzik and Anton Vorontsov | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms and conditions of the GNU General Public License, | |
9 | * version 2, as published by the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope it will be useful, but WITHOUT | |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along with | |
17 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <linux/kernel.h> | |
21 | #include <linux/module.h> | |
22 | #include <linux/platform_device.h> | |
23 | #include <linux/regmap.h> | |
24 | #include <linux/ahci_platform.h> | |
25 | #include <linux/of_device.h> | |
26 | #include <linux/mfd/syscon.h> | |
27 | #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h> | |
8b789d89 | 28 | #include <linux/libata.h> |
9e54eae2 RZ |
29 | #include "ahci.h" |
30 | ||
31 | enum { | |
24a9ad5b SG |
32 | /* Timer 1-ms Register */ |
33 | IMX_TIMER1MS = 0x00e0, | |
34 | /* Port0 PHY Control Register */ | |
35 | IMX_P0PHYCR = 0x0178, | |
36 | IMX_P0PHYCR_TEST_PDDQ = 1 << 20, | |
e783c51c SG |
37 | IMX_P0PHYCR_CR_READ = 1 << 19, |
38 | IMX_P0PHYCR_CR_WRITE = 1 << 18, | |
39 | IMX_P0PHYCR_CR_CAP_DATA = 1 << 17, | |
40 | IMX_P0PHYCR_CR_CAP_ADDR = 1 << 16, | |
41 | /* Port0 PHY Status Register */ | |
42 | IMX_P0PHYSR = 0x017c, | |
43 | IMX_P0PHYSR_CR_ACK = 1 << 18, | |
44 | IMX_P0PHYSR_CR_DATA_OUT = 0xffff << 0, | |
45 | /* Lane0 Output Status Register */ | |
46 | IMX_LANE0_OUT_STAT = 0x2003, | |
47 | IMX_LANE0_OUT_STAT_RX_PLL_STATE = 1 << 1, | |
48 | /* Clock Reset Register */ | |
49 | IMX_CLOCK_RESET = 0x7f3f, | |
50 | IMX_CLOCK_RESET_RESET = 1 << 0, | |
9e54eae2 RZ |
51 | }; |
52 | ||
4a23d179 MV |
53 | enum ahci_imx_type { |
54 | AHCI_IMX53, | |
55 | AHCI_IMX6Q, | |
56 | }; | |
57 | ||
9e54eae2 RZ |
58 | struct imx_ahci_priv { |
59 | struct platform_device *ahci_pdev; | |
4a23d179 | 60 | enum ahci_imx_type type; |
9e54eae2 RZ |
61 | struct clk *ahb_clk; |
62 | struct regmap *gpr; | |
8b789d89 RZ |
63 | bool no_device; |
64 | bool first_time; | |
65 | }; | |
66 | ||
67 | static int ahci_imx_hotplug; | |
68 | module_param_named(hotplug, ahci_imx_hotplug, int, 0644); | |
69 | MODULE_PARM_DESC(hotplug, "AHCI IMX hot-plug support (0=Don't support, 1=support)"); | |
70 | ||
90870d79 HG |
71 | static void ahci_imx_host_stop(struct ata_host *host); |
72 | ||
e783c51c SG |
73 | static int imx_phy_crbit_assert(void __iomem *mmio, u32 bit, bool assert) |
74 | { | |
75 | int timeout = 10; | |
76 | u32 crval; | |
77 | u32 srval; | |
78 | ||
79 | /* Assert or deassert the bit */ | |
80 | crval = readl(mmio + IMX_P0PHYCR); | |
81 | if (assert) | |
82 | crval |= bit; | |
83 | else | |
84 | crval &= ~bit; | |
85 | writel(crval, mmio + IMX_P0PHYCR); | |
86 | ||
87 | /* Wait for the cr_ack signal */ | |
88 | do { | |
89 | srval = readl(mmio + IMX_P0PHYSR); | |
90 | if ((assert ? srval : ~srval) & IMX_P0PHYSR_CR_ACK) | |
91 | break; | |
92 | usleep_range(100, 200); | |
93 | } while (--timeout); | |
94 | ||
95 | return timeout ? 0 : -ETIMEDOUT; | |
96 | } | |
97 | ||
98 | static int imx_phy_reg_addressing(u16 addr, void __iomem *mmio) | |
99 | { | |
100 | u32 crval = addr; | |
101 | int ret; | |
102 | ||
103 | /* Supply the address on cr_data_in */ | |
104 | writel(crval, mmio + IMX_P0PHYCR); | |
105 | ||
106 | /* Assert the cr_cap_addr signal */ | |
107 | ret = imx_phy_crbit_assert(mmio, IMX_P0PHYCR_CR_CAP_ADDR, true); | |
108 | if (ret) | |
109 | return ret; | |
110 | ||
111 | /* Deassert cr_cap_addr */ | |
112 | ret = imx_phy_crbit_assert(mmio, IMX_P0PHYCR_CR_CAP_ADDR, false); | |
113 | if (ret) | |
114 | return ret; | |
115 | ||
116 | return 0; | |
117 | } | |
118 | ||
119 | static int imx_phy_reg_write(u16 val, void __iomem *mmio) | |
120 | { | |
121 | u32 crval = val; | |
122 | int ret; | |
123 | ||
124 | /* Supply the data on cr_data_in */ | |
125 | writel(crval, mmio + IMX_P0PHYCR); | |
126 | ||
127 | /* Assert the cr_cap_data signal */ | |
128 | ret = imx_phy_crbit_assert(mmio, IMX_P0PHYCR_CR_CAP_DATA, true); | |
129 | if (ret) | |
130 | return ret; | |
131 | ||
132 | /* Deassert cr_cap_data */ | |
133 | ret = imx_phy_crbit_assert(mmio, IMX_P0PHYCR_CR_CAP_DATA, false); | |
134 | if (ret) | |
135 | return ret; | |
136 | ||
137 | if (val & IMX_CLOCK_RESET_RESET) { | |
138 | /* | |
139 | * In case we're resetting the phy, it's unable to acknowledge, | |
140 | * so we return immediately here. | |
141 | */ | |
142 | crval |= IMX_P0PHYCR_CR_WRITE; | |
143 | writel(crval, mmio + IMX_P0PHYCR); | |
144 | goto out; | |
145 | } | |
146 | ||
147 | /* Assert the cr_write signal */ | |
148 | ret = imx_phy_crbit_assert(mmio, IMX_P0PHYCR_CR_WRITE, true); | |
149 | if (ret) | |
150 | return ret; | |
151 | ||
152 | /* Deassert cr_write */ | |
153 | ret = imx_phy_crbit_assert(mmio, IMX_P0PHYCR_CR_WRITE, false); | |
154 | if (ret) | |
155 | return ret; | |
156 | ||
157 | out: | |
158 | return 0; | |
159 | } | |
160 | ||
161 | static int imx_phy_reg_read(u16 *val, void __iomem *mmio) | |
162 | { | |
163 | int ret; | |
164 | ||
165 | /* Assert the cr_read signal */ | |
166 | ret = imx_phy_crbit_assert(mmio, IMX_P0PHYCR_CR_READ, true); | |
167 | if (ret) | |
168 | return ret; | |
169 | ||
170 | /* Capture the data from cr_data_out[] */ | |
171 | *val = readl(mmio + IMX_P0PHYSR) & IMX_P0PHYSR_CR_DATA_OUT; | |
172 | ||
173 | /* Deassert cr_read */ | |
174 | ret = imx_phy_crbit_assert(mmio, IMX_P0PHYCR_CR_READ, false); | |
175 | if (ret) | |
176 | return ret; | |
177 | ||
178 | return 0; | |
179 | } | |
180 | ||
181 | static int imx_sata_phy_reset(struct ahci_host_priv *hpriv) | |
182 | { | |
183 | void __iomem *mmio = hpriv->mmio; | |
184 | int timeout = 10; | |
185 | u16 val; | |
186 | int ret; | |
187 | ||
188 | /* Reset SATA PHY by setting RESET bit of PHY register CLOCK_RESET */ | |
189 | ret = imx_phy_reg_addressing(IMX_CLOCK_RESET, mmio); | |
190 | if (ret) | |
191 | return ret; | |
192 | ret = imx_phy_reg_write(IMX_CLOCK_RESET_RESET, mmio); | |
193 | if (ret) | |
194 | return ret; | |
195 | ||
196 | /* Wait for PHY RX_PLL to be stable */ | |
197 | do { | |
198 | usleep_range(100, 200); | |
199 | ret = imx_phy_reg_addressing(IMX_LANE0_OUT_STAT, mmio); | |
200 | if (ret) | |
201 | return ret; | |
202 | ret = imx_phy_reg_read(&val, mmio); | |
203 | if (ret) | |
204 | return ret; | |
205 | if (val & IMX_LANE0_OUT_STAT_RX_PLL_STATE) | |
206 | break; | |
207 | } while (--timeout); | |
208 | ||
209 | return timeout ? 0 : -ETIMEDOUT; | |
210 | } | |
211 | ||
90870d79 | 212 | static int imx_sata_enable(struct ahci_host_priv *hpriv) |
8403e2ec | 213 | { |
90870d79 | 214 | struct imx_ahci_priv *imxpriv = hpriv->plat_data; |
e783c51c | 215 | struct device *dev = &imxpriv->ahci_pdev->dev; |
8403e2ec MV |
216 | int ret; |
217 | ||
90870d79 HG |
218 | if (imxpriv->no_device) |
219 | return 0; | |
220 | ||
221 | if (hpriv->target_pwr) { | |
222 | ret = regulator_enable(hpriv->target_pwr); | |
223 | if (ret) | |
4a23d179 | 224 | return ret; |
4a23d179 MV |
225 | } |
226 | ||
90870d79 HG |
227 | ret = ahci_platform_enable_clks(hpriv); |
228 | if (ret < 0) | |
229 | goto disable_regulator; | |
8403e2ec | 230 | |
4a23d179 | 231 | if (imxpriv->type == AHCI_IMX6Q) { |
90870d79 HG |
232 | /* |
233 | * set PHY Paremeters, two steps to configure the GPR13, | |
234 | * one write for rest of parameters, mask of first write | |
235 | * is 0x07ffffff, and the other one write for setting | |
236 | * the mpll_clk_en. | |
237 | */ | |
238 | regmap_update_bits(imxpriv->gpr, IOMUXC_GPR13, | |
239 | IMX6Q_GPR13_SATA_RX_EQ_VAL_MASK | | |
240 | IMX6Q_GPR13_SATA_RX_LOS_LVL_MASK | | |
241 | IMX6Q_GPR13_SATA_RX_DPLL_MODE_MASK | | |
242 | IMX6Q_GPR13_SATA_SPD_MODE_MASK | | |
243 | IMX6Q_GPR13_SATA_MPLL_SS_EN | | |
244 | IMX6Q_GPR13_SATA_TX_ATTEN_MASK | | |
245 | IMX6Q_GPR13_SATA_TX_BOOST_MASK | | |
246 | IMX6Q_GPR13_SATA_TX_LVL_MASK | | |
247 | IMX6Q_GPR13_SATA_MPLL_CLK_EN | | |
248 | IMX6Q_GPR13_SATA_TX_EDGE_RATE, | |
249 | IMX6Q_GPR13_SATA_RX_EQ_VAL_3_0_DB | | |
250 | IMX6Q_GPR13_SATA_RX_LOS_LVL_SATA2M | | |
251 | IMX6Q_GPR13_SATA_RX_DPLL_MODE_2P_4F | | |
252 | IMX6Q_GPR13_SATA_SPD_MODE_3P0G | | |
253 | IMX6Q_GPR13_SATA_MPLL_SS_EN | | |
254 | IMX6Q_GPR13_SATA_TX_ATTEN_9_16 | | |
255 | IMX6Q_GPR13_SATA_TX_BOOST_3_33_DB | | |
256 | IMX6Q_GPR13_SATA_TX_LVL_1_025_V); | |
4a23d179 MV |
257 | regmap_update_bits(imxpriv->gpr, IOMUXC_GPR13, |
258 | IMX6Q_GPR13_SATA_MPLL_CLK_EN, | |
259 | IMX6Q_GPR13_SATA_MPLL_CLK_EN); | |
e783c51c | 260 | |
3685f251 SG |
261 | usleep_range(100, 200); |
262 | ||
e783c51c SG |
263 | ret = imx_sata_phy_reset(hpriv); |
264 | if (ret) { | |
265 | dev_err(dev, "failed to reset phy: %d\n", ret); | |
266 | goto disable_regulator; | |
267 | } | |
4a23d179 | 268 | } |
8403e2ec MV |
269 | |
270 | usleep_range(1000, 2000); | |
271 | ||
272 | return 0; | |
4a23d179 | 273 | |
90870d79 HG |
274 | disable_regulator: |
275 | if (hpriv->target_pwr) | |
276 | regulator_disable(hpriv->target_pwr); | |
277 | ||
4a23d179 | 278 | return ret; |
8403e2ec MV |
279 | } |
280 | ||
90870d79 | 281 | static void imx_sata_disable(struct ahci_host_priv *hpriv) |
8403e2ec | 282 | { |
90870d79 HG |
283 | struct imx_ahci_priv *imxpriv = hpriv->plat_data; |
284 | ||
285 | if (imxpriv->no_device) | |
286 | return; | |
8403e2ec | 287 | |
4a23d179 MV |
288 | if (imxpriv->type == AHCI_IMX6Q) { |
289 | regmap_update_bits(imxpriv->gpr, IOMUXC_GPR13, | |
290 | IMX6Q_GPR13_SATA_MPLL_CLK_EN, | |
291 | !IMX6Q_GPR13_SATA_MPLL_CLK_EN); | |
292 | } | |
293 | ||
90870d79 | 294 | ahci_platform_disable_clks(hpriv); |
4a23d179 | 295 | |
90870d79 HG |
296 | if (hpriv->target_pwr) |
297 | regulator_disable(hpriv->target_pwr); | |
8403e2ec MV |
298 | } |
299 | ||
8b789d89 RZ |
300 | static void ahci_imx_error_handler(struct ata_port *ap) |
301 | { | |
302 | u32 reg_val; | |
303 | struct ata_device *dev; | |
304 | struct ata_host *host = dev_get_drvdata(ap->dev); | |
305 | struct ahci_host_priv *hpriv = host->private_data; | |
306 | void __iomem *mmio = hpriv->mmio; | |
90870d79 | 307 | struct imx_ahci_priv *imxpriv = hpriv->plat_data; |
8b789d89 RZ |
308 | |
309 | ahci_error_handler(ap); | |
310 | ||
311 | if (!(imxpriv->first_time) || ahci_imx_hotplug) | |
312 | return; | |
313 | ||
314 | imxpriv->first_time = false; | |
315 | ||
316 | ata_for_each_dev(dev, &ap->link, ENABLED) | |
317 | return; | |
318 | /* | |
319 | * Disable link to save power. An imx ahci port can't be recovered | |
320 | * without full reset once the pddq mode is enabled making it | |
321 | * impossible to use as part of libata LPM. | |
322 | */ | |
24a9ad5b SG |
323 | reg_val = readl(mmio + IMX_P0PHYCR); |
324 | writel(reg_val | IMX_P0PHYCR_TEST_PDDQ, mmio + IMX_P0PHYCR); | |
90870d79 | 325 | imx_sata_disable(hpriv); |
8b789d89 RZ |
326 | imxpriv->no_device = true; |
327 | } | |
328 | ||
ee4e5a9a | 329 | static int ahci_imx_softreset(struct ata_link *link, unsigned int *class, |
4a23d179 MV |
330 | unsigned long deadline) |
331 | { | |
332 | struct ata_port *ap = link->ap; | |
90870d79 HG |
333 | struct ata_host *host = dev_get_drvdata(ap->dev); |
334 | struct ahci_host_priv *hpriv = host->private_data; | |
335 | struct imx_ahci_priv *imxpriv = hpriv->plat_data; | |
4a23d179 MV |
336 | int ret = -EIO; |
337 | ||
338 | if (imxpriv->type == AHCI_IMX53) | |
339 | ret = ahci_pmp_retry_srst_ops.softreset(link, class, deadline); | |
340 | else if (imxpriv->type == AHCI_IMX6Q) | |
341 | ret = ahci_ops.softreset(link, class, deadline); | |
342 | ||
343 | return ret; | |
344 | } | |
345 | ||
8b789d89 | 346 | static struct ata_port_operations ahci_imx_ops = { |
90870d79 HG |
347 | .inherits = &ahci_ops, |
348 | .host_stop = ahci_imx_host_stop, | |
8b789d89 | 349 | .error_handler = ahci_imx_error_handler, |
4a23d179 | 350 | .softreset = ahci_imx_softreset, |
8b789d89 RZ |
351 | }; |
352 | ||
353 | static const struct ata_port_info ahci_imx_port_info = { | |
354 | .flags = AHCI_FLAG_COMMON, | |
355 | .pio_mask = ATA_PIO4, | |
356 | .udma_mask = ATA_UDMA6, | |
357 | .port_ops = &ahci_imx_ops, | |
9e54eae2 RZ |
358 | }; |
359 | ||
9e54eae2 | 360 | static const struct of_device_id imx_ahci_of_match[] = { |
4a23d179 MV |
361 | { .compatible = "fsl,imx53-ahci", .data = (void *)AHCI_IMX53 }, |
362 | { .compatible = "fsl,imx6q-ahci", .data = (void *)AHCI_IMX6Q }, | |
9e54eae2 RZ |
363 | {}, |
364 | }; | |
365 | MODULE_DEVICE_TABLE(of, imx_ahci_of_match); | |
366 | ||
367 | static int imx_ahci_probe(struct platform_device *pdev) | |
368 | { | |
369 | struct device *dev = &pdev->dev; | |
9e54eae2 | 370 | const struct of_device_id *of_id; |
90870d79 | 371 | struct ahci_host_priv *hpriv; |
9e54eae2 | 372 | struct imx_ahci_priv *imxpriv; |
90870d79 | 373 | unsigned int reg_val; |
9e54eae2 RZ |
374 | int ret; |
375 | ||
4a23d179 MV |
376 | of_id = of_match_device(imx_ahci_of_match, dev); |
377 | if (!of_id) | |
378 | return -EINVAL; | |
379 | ||
9e54eae2 | 380 | imxpriv = devm_kzalloc(dev, sizeof(*imxpriv), GFP_KERNEL); |
90870d79 | 381 | if (!imxpriv) |
9e54eae2 | 382 | return -ENOMEM; |
9e54eae2 | 383 | |
e783c51c | 384 | imxpriv->ahci_pdev = pdev; |
8b789d89 RZ |
385 | imxpriv->no_device = false; |
386 | imxpriv->first_time = true; | |
90870d79 | 387 | imxpriv->type = (enum ahci_imx_type)of_id->data; |
9e54eae2 RZ |
388 | imxpriv->ahb_clk = devm_clk_get(dev, "ahb"); |
389 | if (IS_ERR(imxpriv->ahb_clk)) { | |
390 | dev_err(dev, "can't get ahb clock.\n"); | |
90870d79 | 391 | return PTR_ERR(imxpriv->ahb_clk); |
9e54eae2 RZ |
392 | } |
393 | ||
90870d79 HG |
394 | if (imxpriv->type == AHCI_IMX6Q) { |
395 | imxpriv->gpr = syscon_regmap_lookup_by_compatible( | |
396 | "fsl,imx6q-iomuxc-gpr"); | |
397 | if (IS_ERR(imxpriv->gpr)) { | |
398 | dev_err(dev, | |
399 | "failed to find fsl,imx6q-iomux-gpr regmap\n"); | |
400 | return PTR_ERR(imxpriv->gpr); | |
4a23d179 MV |
401 | } |
402 | } | |
403 | ||
90870d79 HG |
404 | hpriv = ahci_platform_get_resources(pdev); |
405 | if (IS_ERR(hpriv)) | |
406 | return PTR_ERR(hpriv); | |
407 | ||
408 | hpriv->plat_data = imxpriv; | |
9e54eae2 | 409 | |
90870d79 HG |
410 | ret = imx_sata_enable(hpriv); |
411 | if (ret) | |
412 | return ret; | |
9e54eae2 | 413 | |
90870d79 HG |
414 | /* |
415 | * Configure the HWINIT bits of the HOST_CAP and HOST_PORTS_IMPL, | |
24a9ad5b | 416 | * and IP vendor specific register IMX_TIMER1MS. |
90870d79 HG |
417 | * Configure CAP_SSS (support stagered spin up). |
418 | * Implement the port0. | |
419 | * Get the ahb clock rate, and configure the TIMER1MS register. | |
420 | */ | |
421 | reg_val = readl(hpriv->mmio + HOST_CAP); | |
422 | if (!(reg_val & HOST_CAP_SSS)) { | |
423 | reg_val |= HOST_CAP_SSS; | |
424 | writel(reg_val, hpriv->mmio + HOST_CAP); | |
425 | } | |
426 | reg_val = readl(hpriv->mmio + HOST_PORTS_IMPL); | |
427 | if (!(reg_val & 0x1)) { | |
428 | reg_val |= 0x1; | |
429 | writel(reg_val, hpriv->mmio + HOST_PORTS_IMPL); | |
9e54eae2 RZ |
430 | } |
431 | ||
90870d79 | 432 | reg_val = clk_get_rate(imxpriv->ahb_clk) / 1000; |
24a9ad5b | 433 | writel(reg_val, hpriv->mmio + IMX_TIMER1MS); |
9e54eae2 | 434 | |
90870d79 HG |
435 | ret = ahci_platform_init_host(pdev, hpriv, &ahci_imx_port_info, 0, 0); |
436 | if (ret) | |
437 | imx_sata_disable(hpriv); | |
9e54eae2 | 438 | |
90870d79 HG |
439 | return ret; |
440 | } | |
4a23d179 | 441 | |
90870d79 HG |
442 | static void ahci_imx_host_stop(struct ata_host *host) |
443 | { | |
444 | struct ahci_host_priv *hpriv = host->private_data; | |
8403e2ec | 445 | |
90870d79 HG |
446 | imx_sata_disable(hpriv); |
447 | } | |
9e54eae2 | 448 | |
46ce6b74 | 449 | #ifdef CONFIG_PM_SLEEP |
90870d79 HG |
450 | static int imx_ahci_suspend(struct device *dev) |
451 | { | |
452 | struct ata_host *host = dev_get_drvdata(dev); | |
453 | struct ahci_host_priv *hpriv = host->private_data; | |
454 | int ret; | |
9e54eae2 | 455 | |
90870d79 HG |
456 | ret = ahci_platform_suspend_host(dev); |
457 | if (ret) | |
9e54eae2 | 458 | return ret; |
90870d79 HG |
459 | |
460 | imx_sata_disable(hpriv); | |
9e54eae2 RZ |
461 | |
462 | return 0; | |
463 | } | |
464 | ||
90870d79 | 465 | static int imx_ahci_resume(struct device *dev) |
9e54eae2 | 466 | { |
90870d79 HG |
467 | struct ata_host *host = dev_get_drvdata(dev); |
468 | struct ahci_host_priv *hpriv = host->private_data; | |
469 | int ret; | |
9e54eae2 | 470 | |
90870d79 HG |
471 | ret = imx_sata_enable(hpriv); |
472 | if (ret) | |
473 | return ret; | |
474 | ||
475 | return ahci_platform_resume_host(dev); | |
9e54eae2 | 476 | } |
46ce6b74 | 477 | #endif |
9e54eae2 | 478 | |
90870d79 HG |
479 | static SIMPLE_DEV_PM_OPS(ahci_imx_pm_ops, imx_ahci_suspend, imx_ahci_resume); |
480 | ||
9e54eae2 RZ |
481 | static struct platform_driver imx_ahci_driver = { |
482 | .probe = imx_ahci_probe, | |
90870d79 | 483 | .remove = ata_platform_remove_one, |
9e54eae2 RZ |
484 | .driver = { |
485 | .name = "ahci-imx", | |
486 | .owner = THIS_MODULE, | |
487 | .of_match_table = imx_ahci_of_match, | |
90870d79 | 488 | .pm = &ahci_imx_pm_ops, |
9e54eae2 RZ |
489 | }, |
490 | }; | |
491 | module_platform_driver(imx_ahci_driver); | |
492 | ||
493 | MODULE_DESCRIPTION("Freescale i.MX AHCI SATA platform driver"); | |
494 | MODULE_AUTHOR("Richard Zhu <Hong-Xing.Zhu@freescale.com>"); | |
495 | MODULE_LICENSE("GPL"); | |
496 | MODULE_ALIAS("ahci:imx"); |