mmc/host/toshsd.c

21 #include <linux/mmc/host.h>
35 static void toshsd_init(struct toshsd_host *host)
38 	pci_write_config_byte(host->pdev, SD_PCICFG_CLKSTOP,
40 	pci_write_config_byte(host->pdev, SD_PCICFG_CARDDETECT, 2);
43 	iowrite16(0, host->ioaddr + SD_SOFTWARERESET); /* assert */
45 	iowrite16(1, host->ioaddr + SD_SOFTWARERESET); /* deassert */
49 	iowrite16(0, host->ioaddr + SD_CARDCLOCKCTRL);
50 	iowrite32(0, host->ioaddr + SD_CARDSTATUS);
51 	iowrite32(0, host->ioaddr + SD_ERRORSTATUS0);
52 	iowrite16(0, host->ioaddr + SD_STOPINTERNAL);
55 	iowrite16(0x100, host->ioaddr + SDIO_BASE + SDIO_CLOCKNWAITCTRL);
58 	pci_write_config_byte(host->pdev, SD_PCICFG_SDLED_ENABLE1,
60 	pci_write_config_byte(host->pdev, SD_PCICFG_SDLED_ENABLE2,
68 			host->ioaddr + SD_INTMASKCARD);
70 	iowrite16(0x1000, host->ioaddr + SD_TRANSACTIONCTRL);
80 	struct toshsd_host *host = mmc_priv(mmc);
92 			pci_write_config_byte(host->pdev, SD_PCICFG_CLKMODE,
96 			pci_write_config_byte(host->pdev, SD_PCICFG_CLKMODE, 0);
99 		iowrite16(clk, host->ioaddr + SD_CARDCLOCKCTRL);
103 		iowrite16(0, host->ioaddr + SD_CARDCLOCKCTRL);
107 		pci_write_config_byte(host->pdev, SD_PCICFG_POWER1,
114 		pci_write_config_byte(host->pdev, SD_PCICFG_POWER1,
116 		pci_write_config_byte(host->pdev, SD_PCICFG_POWER2,
127 				host->ioaddr + SD_CARDOPTIONSETUP);
133 				host->ioaddr + SD_CARDOPTIONSETUP);
138 static void toshsd_set_led(struct toshsd_host *host, unsigned char state)
140 	iowrite16(state, host->ioaddr + SDIO_BASE + SDIO_LEDCTRL);
143 static void toshsd_finish_request(struct toshsd_host *host)
145 	struct mmc_request *mrq = host->mrq;
148 	host->mrq = NULL;
149 	host->cmd = NULL;
150 	host->data = NULL;
152 	toshsd_set_led(host, 0);
153 	mmc_request_done(host->mmc, mrq);
158 	struct toshsd_host *host = dev_id;
159 	struct mmc_data *data = host->data;
160 	struct sg_mapping_iter *sg_miter = &host->sg_miter;
166 		dev_warn(&host->pdev->dev, "Spurious Data IRQ\n");
167 		if (host->cmd) {
168 			host->cmd->error = -EIO;
169 			toshsd_finish_request(host);
173 	spin_lock_irqsave(&host->lock, flags);
187 	dev_dbg(&host->pdev->dev, "count: %08x, flags %08x\n", count,
192 		ioread32_rep(host->ioaddr + SD_DATAPORT, buf, count >> 2);
194 		iowrite32_rep(host->ioaddr + SD_DATAPORT, buf, count >> 2);
200 	spin_unlock_irqrestore(&host->lock, flags);
205 static void toshsd_cmd_irq(struct toshsd_host *host)
207 	struct mmc_command *cmd = host->cmd;
211 	if (!host->cmd) {
212 		dev_warn(&host->pdev->dev, "Spurious CMD irq\n");
216 	host->cmd = NULL;
221 		data = ioread16(host->ioaddr + SD_RESPONSE0);
224 		data = ioread16(host->ioaddr + SD_RESPONSE1);
227 		data = ioread16(host->ioaddr + SD_RESPONSE2);
230 		data = ioread16(host->ioaddr + SD_RESPONSE3);
233 		data = ioread16(host->ioaddr + SD_RESPONSE4);
236 		data = ioread16(host->ioaddr + SD_RESPONSE5);
239 		data = ioread16(host->ioaddr + SD_RESPONSE6);
242 		data = ioread16(host->ioaddr + SD_RESPONSE7);
246 		data = ioread16(host->ioaddr + SD_RESPONSE0);
249 		data = ioread16(host->ioaddr + SD_RESPONSE1);
254 	dev_dbg(&host->pdev->dev, "Command IRQ complete %d %d %x\n",
259 	if (host->data)
262 	toshsd_finish_request(host);
265 static void toshsd_data_end_irq(struct toshsd_host *host)
267 	struct mmc_data *data = host->data;
269 	host->data = NULL;
272 		dev_warn(&host->pdev->dev, "Spurious data end IRQ\n");
281 	dev_dbg(&host->pdev->dev, "Completed data request xfr=%d\n",
284 	iowrite16(0, host->ioaddr + SD_STOPINTERNAL);
286 	toshsd_finish_request(host);
291 	struct toshsd_host *host = dev_id;
295 	spin_lock(&host->lock);
296 	int_status = ioread32(host->ioaddr + SD_CARDSTATUS);
297 	int_mask = ioread32(host->ioaddr + SD_INTMASKCARD);
300 	dev_dbg(&host->pdev->dev, "IRQ status:%x mask:%x\n",
311 		dev_dbg(&host->pdev->dev, "Timeout\n");
314 		dev_err(&host->pdev->dev, "BadCRC\n");
321 		dev_err(&host->pdev->dev, "Buffer status error: { %s%s%s%s%s%s}\n",
329 		detail = ioread32(host->ioaddr + SD_ERRORSTATUS0);
330 		dev_err(&host->pdev->dev, "detail error status { %s%s%s%s%s%s%s%s%s%s%s%s%s}\n",
348 		if (host->cmd)
349 			host->cmd->error = error;
354 				  host->ioaddr + SD_CARDSTATUS);
356 			toshsd_init(host);
357 			__toshsd_set_ios(host->mmc, &host->mmc->ios);
366 			  host->ioaddr + SD_CARDSTATUS);
369 			toshsd_init(host);
371 		mmc_detect_change(host->mmc, 1);
378 			  host->ioaddr + SD_CARDSTATUS);
387 			  host->ioaddr + SD_CARDSTATUS);
388 		toshsd_cmd_irq(host);
394 			  host->ioaddr + SD_CARDSTATUS);
395 		toshsd_data_end_irq(host);
398 	spin_unlock(&host->lock);
402 static void toshsd_start_cmd(struct toshsd_host *host, struct mmc_command *cmd)
404 	struct mmc_data *data = host->data;
407 	dev_dbg(&host->pdev->dev, "Command opcode: %d\n", cmd->opcode);
411 			  host->ioaddr + SD_STOPINTERNAL);
418 		toshsd_finish_request(host);
441 		dev_err(&host->pdev->dev, "Unknown response type %d\n",
446 	host->cmd = cmd;
459 				  host->ioaddr + SD_STOPINTERNAL);
470 	iowrite32(cmd->arg, host->ioaddr + SD_ARG0);
471 	iowrite16(c, host->ioaddr + SD_CMD);
474 static void toshsd_start_data(struct toshsd_host *host, struct mmc_data *data)
478 	dev_dbg(&host->pdev->dev, "setup data transfer: blocksize %08x  nr_blocks %d, offset: %08x\n",
481 	host->data = data;
488 	sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags);
491 	iowrite16(data->blocks, host->ioaddr + SD_BLOCKCOUNT);
492 	iowrite16(data->blksz, host->ioaddr + SD_CARDXFERDATALEN);
498 	struct toshsd_host *host = mmc_priv(mmc);
502 	if (!(ioread16(host->ioaddr + SD_CARDSTATUS) & SD_CARD_PRESENT_0)) {
508 	spin_lock_irqsave(&host->lock, flags);
510 	WARN_ON(host->mrq != NULL);
512 	host->mrq = mrq;
515 		toshsd_start_data(host, mrq->data);
517 	toshsd_set_led(host, 1);
519 	toshsd_start_cmd(host, mrq->cmd);
521 	spin_unlock_irqrestore(&host->lock, flags);
526 	struct toshsd_host *host = mmc_priv(mmc);
529 	spin_lock_irqsave(&host->lock, flags);
531 	spin_unlock_irqrestore(&host->lock, flags);
536 	struct toshsd_host *host = mmc_priv(mmc);
539 	return !(ioread16(host->ioaddr + SD_CARDSTATUS) & SD_CARD_WRITE_PROTECT);
544 	struct toshsd_host *host = mmc_priv(mmc);
546 	return !!(ioread16(host->ioaddr + SD_CARDSTATUS) & SD_CARD_PRESENT_0);
557 static void toshsd_powerdown(struct toshsd_host *host)
560 	iowrite32(0xffffffff, host->ioaddr + SD_INTMASKCARD);
562 	iowrite16(0x000, host->ioaddr + SDIO_BASE + SDIO_CLOCKNWAITCTRL);
563 	iowrite16(0, host->ioaddr + SD_CARDCLOCKCTRL);
565 	pci_write_config_byte(host->pdev, SD_PCICFG_POWER1, SD_PCICFG_PWR1_OFF);
567 	pci_write_config_byte(host->pdev, SD_PCICFG_CLKSTOP, 0);
574 	struct toshsd_host *host = pci_get_drvdata(pdev);
576 	toshsd_powerdown(host);
589 	struct toshsd_host *host = pci_get_drvdata(pdev);
598 	toshsd_init(host);
607 	struct toshsd_host *host;
621 	host = mmc_priv(mmc);
622 	host->mmc = mmc;
624 	host->pdev = pdev;
625 	pci_set_drvdata(pdev, host);
631 	host->ioaddr = pci_iomap(pdev, 0, 0);
632 	if (!host->ioaddr) {
637 	/* Set MMC host parameters */
645 	spin_lock_init(&host->lock);
647 	toshsd_init(host);
650 				   IRQF_SHARED, DRIVER_NAME, host);
666 	free_irq(pdev->irq, host);
668 	pci_iounmap(pdev, host->ioaddr);
681 	struct toshsd_host *host = pci_get_drvdata(pdev);
683 	mmc_remove_host(host->mmc);
684 	toshsd_powerdown(host);
685 	free_irq(pdev->irq, host);
686 	pci_iounmap(pdev, host->ioaddr);
688 	mmc_free_host(host->mmc);