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9c92ab61 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
a702c8ab ZG |
2 | /* |
3 | * Copyright (C) 2010 Marvell International Ltd. | |
4 | * Zhangfei Gao <zhangfei.gao@marvell.com> | |
5 | * Kevin Wang <dwang4@marvell.com> | |
6 | * Mingwei Wang <mwwang@marvell.com> | |
7 | * Philip Rakity <prakity@marvell.com> | |
8 | * Mark Brown <markb@marvell.com> | |
a702c8ab ZG |
9 | */ |
10 | #include <linux/err.h> | |
11 | #include <linux/init.h> | |
12 | #include <linux/platform_device.h> | |
13 | #include <linux/clk.h> | |
14 | #include <linux/io.h> | |
a702c8ab ZG |
15 | #include <linux/mmc/card.h> |
16 | #include <linux/mmc/host.h> | |
bfed345e | 17 | #include <linux/platform_data/pxa_sdhci.h> |
a702c8ab ZG |
18 | #include <linux/slab.h> |
19 | #include <linux/delay.h> | |
88b47679 | 20 | #include <linux/module.h> |
b650352d CB |
21 | #include <linux/of.h> |
22 | #include <linux/of_device.h> | |
bb691ae4 KL |
23 | #include <linux/pm.h> |
24 | #include <linux/pm_runtime.h> | |
5491ce3f | 25 | #include <linux/mbus.h> |
b650352d | 26 | |
a702c8ab ZG |
27 | #include "sdhci.h" |
28 | #include "sdhci-pltfm.h" | |
29 | ||
bb691ae4 KL |
30 | #define PXAV3_RPM_DELAY_MS 50 |
31 | ||
a702c8ab ZG |
32 | #define SD_CLOCK_BURST_SIZE_SETUP 0x10A |
33 | #define SDCLK_SEL 0x100 | |
34 | #define SDCLK_DELAY_SHIFT 9 | |
35 | #define SDCLK_DELAY_MASK 0x1f | |
36 | ||
37 | #define SD_CFG_FIFO_PARAM 0x100 | |
38 | #define SDCFG_GEN_PAD_CLK_ON (1<<6) | |
39 | #define SDCFG_GEN_PAD_CLK_CNT_MASK 0xFF | |
40 | #define SDCFG_GEN_PAD_CLK_CNT_SHIFT 24 | |
41 | ||
42 | #define SD_SPI_MODE 0x108 | |
43 | #define SD_CE_ATA_1 0x10C | |
44 | ||
45 | #define SD_CE_ATA_2 0x10E | |
46 | #define SDCE_MISC_INT (1<<2) | |
47 | #define SDCE_MISC_INT_EN (1<<1) | |
48 | ||
cc9571e8 | 49 | struct sdhci_pxa { |
8afdc9cc | 50 | struct clk *clk_core; |
8c96a7a3 | 51 | struct clk *clk_io; |
cc9571e8 | 52 | u8 power_mode; |
1140011e | 53 | void __iomem *sdio3_conf_reg; |
cc9571e8 SH |
54 | }; |
55 | ||
5491ce3f MW |
56 | /* |
57 | * These registers are relative to the second register region, for the | |
58 | * MBus bridge. | |
59 | */ | |
60 | #define SDHCI_WINDOW_CTRL(i) (0x80 + ((i) << 3)) | |
61 | #define SDHCI_WINDOW_BASE(i) (0x84 + ((i) << 3)) | |
62 | #define SDHCI_MAX_WIN_NUM 8 | |
63 | ||
1140011e MW |
64 | /* |
65 | * Fields below belong to SDIO3 Configuration Register (third register | |
66 | * region for the Armada 38x flavor) | |
67 | */ | |
68 | ||
69 | #define SDIO3_CONF_CLK_INV BIT(0) | |
70 | #define SDIO3_CONF_SD_FB_CLK BIT(2) | |
71 | ||
5491ce3f MW |
72 | static int mv_conf_mbus_windows(struct platform_device *pdev, |
73 | const struct mbus_dram_target_info *dram) | |
74 | { | |
75 | int i; | |
76 | void __iomem *regs; | |
77 | struct resource *res; | |
78 | ||
79 | if (!dram) { | |
80 | dev_err(&pdev->dev, "no mbus dram info\n"); | |
81 | return -EINVAL; | |
82 | } | |
83 | ||
84 | res = platform_get_resource(pdev, IORESOURCE_MEM, 1); | |
85 | if (!res) { | |
86 | dev_err(&pdev->dev, "cannot get mbus registers\n"); | |
87 | return -EINVAL; | |
88 | } | |
89 | ||
90 | regs = ioremap(res->start, resource_size(res)); | |
91 | if (!regs) { | |
92 | dev_err(&pdev->dev, "cannot map mbus registers\n"); | |
93 | return -ENOMEM; | |
94 | } | |
95 | ||
96 | for (i = 0; i < SDHCI_MAX_WIN_NUM; i++) { | |
97 | writel(0, regs + SDHCI_WINDOW_CTRL(i)); | |
98 | writel(0, regs + SDHCI_WINDOW_BASE(i)); | |
99 | } | |
100 | ||
101 | for (i = 0; i < dram->num_cs; i++) { | |
102 | const struct mbus_dram_window *cs = dram->cs + i; | |
103 | ||
104 | /* Write size, attributes and target id to control register */ | |
105 | writel(((cs->size - 1) & 0xffff0000) | | |
106 | (cs->mbus_attr << 8) | | |
107 | (dram->mbus_dram_target_id << 4) | 1, | |
108 | regs + SDHCI_WINDOW_CTRL(i)); | |
109 | /* Write base address to base register */ | |
110 | writel(cs->base, regs + SDHCI_WINDOW_BASE(i)); | |
111 | } | |
112 | ||
113 | iounmap(regs); | |
114 | ||
115 | return 0; | |
116 | } | |
117 | ||
a39128bc MW |
118 | static int armada_38x_quirks(struct platform_device *pdev, |
119 | struct sdhci_host *host) | |
d4b803c5 | 120 | { |
a39128bc | 121 | struct device_node *np = pdev->dev.of_node; |
1140011e | 122 | struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); |
f599da40 | 123 | struct sdhci_pxa *pxa = sdhci_pltfm_priv(pltfm_host); |
1140011e | 124 | struct resource *res; |
a39128bc | 125 | |
5de76bfc | 126 | host->quirks &= ~SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN; |
d4b803c5 | 127 | host->quirks |= SDHCI_QUIRK_MISSING_CAPS; |
0ca33b4a RK |
128 | |
129 | host->caps = sdhci_readl(host, SDHCI_CAPABILITIES); | |
130 | host->caps1 = sdhci_readl(host, SDHCI_CAPABILITIES_1); | |
131 | ||
1140011e MW |
132 | res = platform_get_resource_byname(pdev, IORESOURCE_MEM, |
133 | "conf-sdio3"); | |
134 | if (res) { | |
135 | pxa->sdio3_conf_reg = devm_ioremap_resource(&pdev->dev, res); | |
136 | if (IS_ERR(pxa->sdio3_conf_reg)) | |
137 | return PTR_ERR(pxa->sdio3_conf_reg); | |
138 | } else { | |
139 | /* | |
140 | * According to erratum 'FE-2946959' both SDR50 and DDR50 | |
141 | * modes require specific clock adjustments in SDIO3 | |
142 | * Configuration register, if the adjustment is not done, | |
143 | * remove them from the capabilities. | |
144 | */ | |
1140011e MW |
145 | host->caps1 &= ~(SDHCI_SUPPORT_SDR50 | SDHCI_SUPPORT_DDR50); |
146 | ||
147 | dev_warn(&pdev->dev, "conf-sdio3 register not found: disabling SDR50 and DDR50 modes.\nConsider updating your dtb\n"); | |
148 | } | |
a39128bc MW |
149 | |
150 | /* | |
151 | * According to erratum 'ERR-7878951' Armada 38x SDHCI | |
152 | * controller has different capabilities than the ones shown | |
153 | * in its registers | |
154 | */ | |
a39128bc MW |
155 | if (of_property_read_bool(np, "no-1-8-v")) { |
156 | host->caps &= ~SDHCI_CAN_VDD_180; | |
157 | host->mmc->caps &= ~MMC_CAP_1_8V_DDR; | |
158 | } else { | |
159 | host->caps &= ~SDHCI_CAN_VDD_330; | |
160 | } | |
161 | host->caps1 &= ~(SDHCI_SUPPORT_SDR104 | SDHCI_USE_SDR50_TUNING); | |
162 | ||
d4b803c5 GC |
163 | return 0; |
164 | } | |
165 | ||
03231f9b | 166 | static void pxav3_reset(struct sdhci_host *host, u8 mask) |
a702c8ab ZG |
167 | { |
168 | struct platform_device *pdev = to_platform_device(mmc_dev(host->mmc)); | |
169 | struct sdhci_pxa_platdata *pdata = pdev->dev.platform_data; | |
170 | ||
03231f9b RK |
171 | sdhci_reset(host, mask); |
172 | ||
a702c8ab ZG |
173 | if (mask == SDHCI_RESET_ALL) { |
174 | /* | |
175 | * tune timing of read data/command when crc error happen | |
176 | * no performance impact | |
177 | */ | |
178 | if (pdata && 0 != pdata->clk_delay_cycles) { | |
179 | u16 tmp; | |
180 | ||
181 | tmp = readw(host->ioaddr + SD_CLOCK_BURST_SIZE_SETUP); | |
182 | tmp |= (pdata->clk_delay_cycles & SDCLK_DELAY_MASK) | |
183 | << SDCLK_DELAY_SHIFT; | |
184 | tmp |= SDCLK_SEL; | |
185 | writew(tmp, host->ioaddr + SD_CLOCK_BURST_SIZE_SETUP); | |
186 | } | |
187 | } | |
188 | } | |
189 | ||
190 | #define MAX_WAIT_COUNT 5 | |
191 | static void pxav3_gen_init_74_clocks(struct sdhci_host *host, u8 power_mode) | |
192 | { | |
193 | struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); | |
f599da40 | 194 | struct sdhci_pxa *pxa = sdhci_pltfm_priv(pltfm_host); |
a702c8ab ZG |
195 | u16 tmp; |
196 | int count; | |
197 | ||
198 | if (pxa->power_mode == MMC_POWER_UP | |
199 | && power_mode == MMC_POWER_ON) { | |
200 | ||
201 | dev_dbg(mmc_dev(host->mmc), | |
202 | "%s: slot->power_mode = %d," | |
203 | "ios->power_mode = %d\n", | |
204 | __func__, | |
205 | pxa->power_mode, | |
206 | power_mode); | |
207 | ||
208 | /* set we want notice of when 74 clocks are sent */ | |
209 | tmp = readw(host->ioaddr + SD_CE_ATA_2); | |
210 | tmp |= SDCE_MISC_INT_EN; | |
211 | writew(tmp, host->ioaddr + SD_CE_ATA_2); | |
212 | ||
213 | /* start sending the 74 clocks */ | |
214 | tmp = readw(host->ioaddr + SD_CFG_FIFO_PARAM); | |
215 | tmp |= SDCFG_GEN_PAD_CLK_ON; | |
216 | writew(tmp, host->ioaddr + SD_CFG_FIFO_PARAM); | |
217 | ||
218 | /* slowest speed is about 100KHz or 10usec per clock */ | |
219 | udelay(740); | |
220 | count = 0; | |
221 | ||
222 | while (count++ < MAX_WAIT_COUNT) { | |
223 | if ((readw(host->ioaddr + SD_CE_ATA_2) | |
224 | & SDCE_MISC_INT) == 0) | |
225 | break; | |
226 | udelay(10); | |
227 | } | |
228 | ||
229 | if (count == MAX_WAIT_COUNT) | |
230 | dev_warn(mmc_dev(host->mmc), "74 clock interrupt not cleared\n"); | |
231 | ||
232 | /* clear the interrupt bit if posted */ | |
233 | tmp = readw(host->ioaddr + SD_CE_ATA_2); | |
234 | tmp |= SDCE_MISC_INT; | |
235 | writew(tmp, host->ioaddr + SD_CE_ATA_2); | |
236 | } | |
237 | pxa->power_mode = power_mode; | |
238 | } | |
239 | ||
13e64501 | 240 | static void pxav3_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs) |
a702c8ab | 241 | { |
1140011e | 242 | struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); |
f599da40 | 243 | struct sdhci_pxa *pxa = sdhci_pltfm_priv(pltfm_host); |
a702c8ab ZG |
244 | u16 ctrl_2; |
245 | ||
246 | /* | |
247 | * Set V18_EN -- UHS modes do not work without this. | |
248 | * does not change signaling voltage | |
249 | */ | |
250 | ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); | |
251 | ||
252 | /* Select Bus Speed Mode for host */ | |
253 | ctrl_2 &= ~SDHCI_CTRL_UHS_MASK; | |
254 | switch (uhs) { | |
255 | case MMC_TIMING_UHS_SDR12: | |
256 | ctrl_2 |= SDHCI_CTRL_UHS_SDR12; | |
257 | break; | |
258 | case MMC_TIMING_UHS_SDR25: | |
259 | ctrl_2 |= SDHCI_CTRL_UHS_SDR25; | |
260 | break; | |
261 | case MMC_TIMING_UHS_SDR50: | |
262 | ctrl_2 |= SDHCI_CTRL_UHS_SDR50 | SDHCI_CTRL_VDD_180; | |
263 | break; | |
264 | case MMC_TIMING_UHS_SDR104: | |
265 | ctrl_2 |= SDHCI_CTRL_UHS_SDR104 | SDHCI_CTRL_VDD_180; | |
266 | break; | |
668e84b2 | 267 | case MMC_TIMING_MMC_DDR52: |
a702c8ab ZG |
268 | case MMC_TIMING_UHS_DDR50: |
269 | ctrl_2 |= SDHCI_CTRL_UHS_DDR50 | SDHCI_CTRL_VDD_180; | |
270 | break; | |
271 | } | |
272 | ||
1140011e MW |
273 | /* |
274 | * Update SDIO3 Configuration register according to erratum | |
275 | * FE-2946959 | |
276 | */ | |
277 | if (pxa->sdio3_conf_reg) { | |
278 | u8 reg_val = readb(pxa->sdio3_conf_reg); | |
279 | ||
280 | if (uhs == MMC_TIMING_UHS_SDR50 || | |
281 | uhs == MMC_TIMING_UHS_DDR50) { | |
282 | reg_val &= ~SDIO3_CONF_CLK_INV; | |
283 | reg_val |= SDIO3_CONF_SD_FB_CLK; | |
fa796414 NH |
284 | } else if (uhs == MMC_TIMING_MMC_HS) { |
285 | reg_val &= ~SDIO3_CONF_CLK_INV; | |
286 | reg_val &= ~SDIO3_CONF_SD_FB_CLK; | |
1140011e MW |
287 | } else { |
288 | reg_val |= SDIO3_CONF_CLK_INV; | |
289 | reg_val &= ~SDIO3_CONF_SD_FB_CLK; | |
290 | } | |
291 | writeb(reg_val, pxa->sdio3_conf_reg); | |
292 | } | |
293 | ||
a702c8ab ZG |
294 | sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2); |
295 | dev_dbg(mmc_dev(host->mmc), | |
296 | "%s uhs = %d, ctrl_2 = %04X\n", | |
297 | __func__, uhs, ctrl_2); | |
a702c8ab ZG |
298 | } |
299 | ||
1dceb041 AH |
300 | static void pxav3_set_power(struct sdhci_host *host, unsigned char mode, |
301 | unsigned short vdd) | |
302 | { | |
303 | struct mmc_host *mmc = host->mmc; | |
304 | u8 pwr = host->pwr; | |
305 | ||
606d3131 | 306 | sdhci_set_power_noreg(host, mode, vdd); |
1dceb041 AH |
307 | |
308 | if (host->pwr == pwr) | |
309 | return; | |
310 | ||
311 | if (host->pwr == 0) | |
312 | vdd = 0; | |
313 | ||
d1e4f74f | 314 | if (!IS_ERR(mmc->supply.vmmc)) |
1dceb041 | 315 | mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd); |
1dceb041 AH |
316 | } |
317 | ||
c915568d | 318 | static const struct sdhci_ops pxav3_sdhci_ops = { |
1771059c | 319 | .set_clock = sdhci_set_clock, |
1dceb041 | 320 | .set_power = pxav3_set_power, |
a702c8ab | 321 | .platform_send_init_74_clocks = pxav3_gen_init_74_clocks, |
d005d943 | 322 | .get_max_clock = sdhci_pltfm_clk_get_max_clock, |
2317f56c | 323 | .set_bus_width = sdhci_set_bus_width, |
03231f9b | 324 | .reset = pxav3_reset, |
b3153765 | 325 | .set_uhs_signaling = pxav3_set_uhs_signaling, |
a702c8ab ZG |
326 | }; |
327 | ||
d35ade8f | 328 | static const struct sdhci_pltfm_data sdhci_pxav3_pdata = { |
e065162a | 329 | .quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
73b7afb9 KL |
330 | | SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
331 | | SDHCI_QUIRK_32BIT_ADMA_SIZE | |
332 | | SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN, | |
333 | .ops = &pxav3_sdhci_ops, | |
334 | }; | |
335 | ||
b650352d CB |
336 | #ifdef CONFIG_OF |
337 | static const struct of_device_id sdhci_pxav3_of_match[] = { | |
338 | { | |
339 | .compatible = "mrvl,pxav3-mmc", | |
340 | }, | |
5491ce3f MW |
341 | { |
342 | .compatible = "marvell,armada-380-sdhci", | |
343 | }, | |
b650352d CB |
344 | {}, |
345 | }; | |
346 | MODULE_DEVICE_TABLE(of, sdhci_pxav3_of_match); | |
347 | ||
348 | static struct sdhci_pxa_platdata *pxav3_get_mmc_pdata(struct device *dev) | |
349 | { | |
350 | struct sdhci_pxa_platdata *pdata; | |
351 | struct device_node *np = dev->of_node; | |
b650352d CB |
352 | u32 clk_delay_cycles; |
353 | ||
354 | pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); | |
355 | if (!pdata) | |
356 | return NULL; | |
357 | ||
14460dba JZ |
358 | if (!of_property_read_u32(np, "mrvl,clk-delay-cycles", |
359 | &clk_delay_cycles)) | |
b650352d CB |
360 | pdata->clk_delay_cycles = clk_delay_cycles; |
361 | ||
362 | return pdata; | |
363 | } | |
364 | #else | |
365 | static inline struct sdhci_pxa_platdata *pxav3_get_mmc_pdata(struct device *dev) | |
366 | { | |
367 | return NULL; | |
368 | } | |
369 | #endif | |
370 | ||
c3be1efd | 371 | static int sdhci_pxav3_probe(struct platform_device *pdev) |
a702c8ab ZG |
372 | { |
373 | struct sdhci_pltfm_host *pltfm_host; | |
374 | struct sdhci_pxa_platdata *pdata = pdev->dev.platform_data; | |
375 | struct device *dev = &pdev->dev; | |
5491ce3f | 376 | struct device_node *np = pdev->dev.of_node; |
a702c8ab ZG |
377 | struct sdhci_host *host = NULL; |
378 | struct sdhci_pxa *pxa = NULL; | |
b650352d | 379 | const struct of_device_id *match; |
a702c8ab | 380 | int ret; |
a702c8ab | 381 | |
f599da40 | 382 | host = sdhci_pltfm_init(pdev, &sdhci_pxav3_pdata, sizeof(*pxa)); |
3df5b281 | 383 | if (IS_ERR(host)) |
a702c8ab | 384 | return PTR_ERR(host); |
5491ce3f | 385 | |
a702c8ab | 386 | pltfm_host = sdhci_priv(host); |
f599da40 | 387 | pxa = sdhci_pltfm_priv(pltfm_host); |
a702c8ab | 388 | |
01ae1070 SH |
389 | pxa->clk_io = devm_clk_get(dev, "io"); |
390 | if (IS_ERR(pxa->clk_io)) | |
391 | pxa->clk_io = devm_clk_get(dev, NULL); | |
8c96a7a3 | 392 | if (IS_ERR(pxa->clk_io)) { |
a702c8ab | 393 | dev_err(dev, "failed to get io clock\n"); |
8c96a7a3 | 394 | ret = PTR_ERR(pxa->clk_io); |
a702c8ab ZG |
395 | goto err_clk_get; |
396 | } | |
8c96a7a3 SH |
397 | pltfm_host->clk = pxa->clk_io; |
398 | clk_prepare_enable(pxa->clk_io); | |
a702c8ab | 399 | |
8afdc9cc SH |
400 | pxa->clk_core = devm_clk_get(dev, "core"); |
401 | if (!IS_ERR(pxa->clk_core)) | |
402 | clk_prepare_enable(pxa->clk_core); | |
403 | ||
a39128bc MW |
404 | /* enable 1/8V DDR capable */ |
405 | host->mmc->caps |= MMC_CAP_1_8V_DDR; | |
406 | ||
aa8165f9 | 407 | if (of_device_is_compatible(np, "marvell,armada-380-sdhci")) { |
a39128bc | 408 | ret = armada_38x_quirks(pdev, host); |
d4b803c5 | 409 | if (ret < 0) |
2162d9f4 | 410 | goto err_mbus_win; |
aa8165f9 TP |
411 | ret = mv_conf_mbus_windows(pdev, mv_mbus_dram_info()); |
412 | if (ret < 0) | |
413 | goto err_mbus_win; | |
414 | } | |
415 | ||
b650352d | 416 | match = of_match_device(of_match_ptr(sdhci_pxav3_of_match), &pdev->dev); |
943647f6 | 417 | if (match) { |
d2cf6071 SB |
418 | ret = mmc_of_parse(host->mmc); |
419 | if (ret) | |
420 | goto err_of_parse; | |
943647f6 | 421 | sdhci_get_of_property(pdev); |
b650352d | 422 | pdata = pxav3_get_mmc_pdata(dev); |
9cd76049 | 423 | pdev->dev.platform_data = pdata; |
943647f6 | 424 | } else if (pdata) { |
c844a46f KL |
425 | /* on-chip device */ |
426 | if (pdata->flags & PXA_FLAG_CARD_PERMANENT) | |
a702c8ab | 427 | host->mmc->caps |= MMC_CAP_NONREMOVABLE; |
a702c8ab ZG |
428 | |
429 | /* If slot design supports 8 bit data, indicate this to MMC. */ | |
430 | if (pdata->flags & PXA_FLAG_SD_8_BIT_CAPABLE_SLOT) | |
431 | host->mmc->caps |= MMC_CAP_8_BIT_DATA; | |
432 | ||
433 | if (pdata->quirks) | |
434 | host->quirks |= pdata->quirks; | |
7c52d7bb KL |
435 | if (pdata->quirks2) |
436 | host->quirks2 |= pdata->quirks2; | |
a702c8ab ZG |
437 | if (pdata->host_caps) |
438 | host->mmc->caps |= pdata->host_caps; | |
8f63795c CB |
439 | if (pdata->host_caps2) |
440 | host->mmc->caps2 |= pdata->host_caps2; | |
a702c8ab ZG |
441 | if (pdata->pm_caps) |
442 | host->mmc->pm_caps |= pdata->pm_caps; | |
443 | } | |
444 | ||
62cf983a JZ |
445 | pm_runtime_get_noresume(&pdev->dev); |
446 | pm_runtime_set_active(&pdev->dev); | |
bb691ae4 KL |
447 | pm_runtime_set_autosuspend_delay(&pdev->dev, PXAV3_RPM_DELAY_MS); |
448 | pm_runtime_use_autosuspend(&pdev->dev); | |
62cf983a | 449 | pm_runtime_enable(&pdev->dev); |
bb691ae4 | 450 | pm_suspend_ignore_children(&pdev->dev, 1); |
bb691ae4 | 451 | |
a702c8ab | 452 | ret = sdhci_add_host(host); |
fb8617e1 | 453 | if (ret) |
a702c8ab | 454 | goto err_add_host; |
a702c8ab | 455 | |
83dc9fec | 456 | if (host->mmc->pm_caps & MMC_PM_WAKE_SDIO_IRQ) |
740b7a44 | 457 | device_init_wakeup(&pdev->dev, 1); |
740b7a44 | 458 | |
bb691ae4 KL |
459 | pm_runtime_put_autosuspend(&pdev->dev); |
460 | ||
a702c8ab ZG |
461 | return 0; |
462 | ||
463 | err_add_host: | |
0dcaa249 | 464 | pm_runtime_disable(&pdev->dev); |
62cf983a | 465 | pm_runtime_put_noidle(&pdev->dev); |
87d2163d | 466 | err_of_parse: |
aa8165f9 | 467 | err_mbus_win: |
8c96a7a3 | 468 | clk_disable_unprepare(pxa->clk_io); |
c25d9e1b | 469 | clk_disable_unprepare(pxa->clk_core); |
a702c8ab ZG |
470 | err_clk_get: |
471 | sdhci_pltfm_free(pdev); | |
a702c8ab ZG |
472 | return ret; |
473 | } | |
474 | ||
6e0ee714 | 475 | static int sdhci_pxav3_remove(struct platform_device *pdev) |
a702c8ab ZG |
476 | { |
477 | struct sdhci_host *host = platform_get_drvdata(pdev); | |
478 | struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); | |
f599da40 | 479 | struct sdhci_pxa *pxa = sdhci_pltfm_priv(pltfm_host); |
a702c8ab | 480 | |
bb691ae4 | 481 | pm_runtime_get_sync(&pdev->dev); |
bb691ae4 | 482 | pm_runtime_disable(&pdev->dev); |
20f1f2d7 JZ |
483 | pm_runtime_put_noidle(&pdev->dev); |
484 | ||
485 | sdhci_remove_host(host, 1); | |
a702c8ab | 486 | |
8c96a7a3 | 487 | clk_disable_unprepare(pxa->clk_io); |
c25d9e1b | 488 | clk_disable_unprepare(pxa->clk_core); |
8f63795c | 489 | |
a702c8ab | 490 | sdhci_pltfm_free(pdev); |
a702c8ab | 491 | |
a702c8ab ZG |
492 | return 0; |
493 | } | |
494 | ||
bb691ae4 KL |
495 | #ifdef CONFIG_PM_SLEEP |
496 | static int sdhci_pxav3_suspend(struct device *dev) | |
497 | { | |
498 | int ret; | |
499 | struct sdhci_host *host = dev_get_drvdata(dev); | |
500 | ||
501 | pm_runtime_get_sync(dev); | |
d38dcad4 AH |
502 | if (host->tuning_mode != SDHCI_TUNING_MODE_3) |
503 | mmc_retune_needed(host->mmc); | |
bb691ae4 KL |
504 | ret = sdhci_suspend_host(host); |
505 | pm_runtime_mark_last_busy(dev); | |
506 | pm_runtime_put_autosuspend(dev); | |
507 | ||
508 | return ret; | |
509 | } | |
510 | ||
511 | static int sdhci_pxav3_resume(struct device *dev) | |
512 | { | |
513 | int ret; | |
514 | struct sdhci_host *host = dev_get_drvdata(dev); | |
515 | ||
516 | pm_runtime_get_sync(dev); | |
517 | ret = sdhci_resume_host(host); | |
518 | pm_runtime_mark_last_busy(dev); | |
519 | pm_runtime_put_autosuspend(dev); | |
520 | ||
521 | return ret; | |
522 | } | |
523 | #endif | |
524 | ||
162d6f98 | 525 | #ifdef CONFIG_PM |
bb691ae4 KL |
526 | static int sdhci_pxav3_runtime_suspend(struct device *dev) |
527 | { | |
528 | struct sdhci_host *host = dev_get_drvdata(dev); | |
529 | struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); | |
f599da40 | 530 | struct sdhci_pxa *pxa = sdhci_pltfm_priv(pltfm_host); |
3bb10f60 | 531 | int ret; |
bb691ae4 | 532 | |
3bb10f60 JZ |
533 | ret = sdhci_runtime_suspend_host(host); |
534 | if (ret) | |
535 | return ret; | |
bb691ae4 | 536 | |
d38dcad4 AH |
537 | if (host->tuning_mode != SDHCI_TUNING_MODE_3) |
538 | mmc_retune_needed(host->mmc); | |
539 | ||
8c96a7a3 | 540 | clk_disable_unprepare(pxa->clk_io); |
8afdc9cc SH |
541 | if (!IS_ERR(pxa->clk_core)) |
542 | clk_disable_unprepare(pxa->clk_core); | |
bb691ae4 KL |
543 | |
544 | return 0; | |
545 | } | |
546 | ||
547 | static int sdhci_pxav3_runtime_resume(struct device *dev) | |
548 | { | |
549 | struct sdhci_host *host = dev_get_drvdata(dev); | |
550 | struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); | |
f599da40 | 551 | struct sdhci_pxa *pxa = sdhci_pltfm_priv(pltfm_host); |
bb691ae4 | 552 | |
8c96a7a3 | 553 | clk_prepare_enable(pxa->clk_io); |
8afdc9cc SH |
554 | if (!IS_ERR(pxa->clk_core)) |
555 | clk_prepare_enable(pxa->clk_core); | |
bb691ae4 | 556 | |
3bb10f60 | 557 | return sdhci_runtime_resume_host(host); |
bb691ae4 KL |
558 | } |
559 | #endif | |
560 | ||
bb691ae4 KL |
561 | static const struct dev_pm_ops sdhci_pxav3_pmops = { |
562 | SET_SYSTEM_SLEEP_PM_OPS(sdhci_pxav3_suspend, sdhci_pxav3_resume) | |
563 | SET_RUNTIME_PM_OPS(sdhci_pxav3_runtime_suspend, | |
564 | sdhci_pxav3_runtime_resume, NULL) | |
565 | }; | |
566 | ||
a702c8ab ZG |
567 | static struct platform_driver sdhci_pxav3_driver = { |
568 | .driver = { | |
569 | .name = "sdhci-pxav3", | |
59d22309 | 570 | .of_match_table = of_match_ptr(sdhci_pxav3_of_match), |
a81ce772 | 571 | .pm = &sdhci_pxav3_pmops, |
a702c8ab ZG |
572 | }, |
573 | .probe = sdhci_pxav3_probe, | |
0433c143 | 574 | .remove = sdhci_pxav3_remove, |
a702c8ab | 575 | }; |
a702c8ab | 576 | |
d1f81a64 | 577 | module_platform_driver(sdhci_pxav3_driver); |
a702c8ab ZG |
578 | |
579 | MODULE_DESCRIPTION("SDHCI driver for pxav3"); | |
580 | MODULE_AUTHOR("Marvell International Ltd."); | |
581 | MODULE_LICENSE("GPL v2"); | |
582 |