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Commit f9204112 authored by Sonic Zhang's avatar Sonic Zhang Committed by Jeff Garzik
Browse files

Blackfin pata-bf54x driver: Add debug information 



Signed-off-by: default avatarRobin Getz <robin.getz@analog.com>
Signed-off-by: default avatarMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: default avatarSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: default avatarBryan Wu <bryan.wu@analog.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent a315acda

drivers/ata/pata_bf54x.c

+19 −18
Original line number Diff line number Diff line
@@ -299,7 +299,7 @@ static void bfin_set_piomode(struct ata_port *ap, struct ata_device *adev) 
	*/

	n6 = num_clocks_min(t6min, fsclk);

	if (mode >= 0 && mode <= 4 && n6 >= 1) {

		pr_debug("set piomode: mode=%d, fsclk=%ud\n", mode, fsclk);

		dev_dbg(adev->ap->dev, "set piomode: mode=%d, fsclk=%ud\n", mode, fsclk);

		/* calculate the timing values for register transfers. */

		while (mode > 0 && pio_fsclk[mode] > fsclk)

			mode--;
@@ -376,7 +376,7 @@ static void bfin_set_dmamode(struct ata_port *ap, struct ata_device *adev) 


	mode = adev->dma_mode - XFER_UDMA_0;

	if (mode >= 0 && mode <= 5) {

		pr_debug("set udmamode: mode=%d\n", mode);

		dev_dbg(adev->ap->dev, "set udmamode: mode=%d\n", mode);

		/* the most restrictive timing value is t6 and tc,

		 * the DIOW - data hold. If one SCLK pulse is longer

		 * than this minimum value then register
@@ -433,7 +433,7 @@ static void bfin_set_dmamode(struct ata_port *ap, struct ata_device *adev) 


	mode = adev->dma_mode - XFER_MW_DMA_0;

	if (mode >= 0 && mode <= 2) {

		pr_debug("set mdmamode: mode=%d\n", mode);

		dev_dbg(adev->ap->dev, "set mdmamode: mode=%d\n", mode);

		/* the most restrictive timing value is tf, the DMACK to

		 * read data released. If one SCLK pulse is longer than

		 * this maximum value then the MDMA mode
@@ -697,7 +697,7 @@ static void bfin_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) 
			write_atapi_register(base, ATA_REG_LBAL, tf->hob_lbal);

			write_atapi_register(base, ATA_REG_LBAM, tf->hob_lbam);

			write_atapi_register(base, ATA_REG_LBAH, tf->hob_lbah);

			pr_debug("hob: feat 0x%X nsect 0x%X, lba 0x%X "

			dev_dbg(ap->dev, "hob: feat 0x%X nsect 0x%X, lba 0x%X "

				 "0x%X 0x%X\n",

				tf->hob_feature,

				tf->hob_nsect,
@@ -711,7 +711,7 @@ static void bfin_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) 
		write_atapi_register(base, ATA_REG_LBAL, tf->lbal);

		write_atapi_register(base, ATA_REG_LBAM, tf->lbam);

		write_atapi_register(base, ATA_REG_LBAH, tf->lbah);

		pr_debug("feat 0x%X nsect 0x%X lba 0x%X 0x%X 0x%X\n",

		dev_dbg(ap->dev, "feat 0x%X nsect 0x%X lba 0x%X 0x%X 0x%X\n",

			tf->feature,

			tf->nsect,

			tf->lbal,
@@ -721,7 +721,7 @@ static void bfin_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) 


	if (tf->flags & ATA_TFLAG_DEVICE) {

		write_atapi_register(base, ATA_REG_DEVICE, tf->device);

		pr_debug("device 0x%X\n", tf->device);

		dev_dbg(ap->dev, "device 0x%X\n", tf->device);

	}



	ata_wait_idle(ap);
@@ -782,7 +782,7 @@ static void bfin_exec_command(struct ata_port *ap, 
			      const struct ata_taskfile *tf)

{

	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;

	pr_debug("ata%u: cmd 0x%X\n", ap->print_id, tf->command);

	dev_dbg(ap->dev, "ata%u: cmd 0x%X\n", ap->print_id, tf->command);



	write_atapi_register(base, ATA_REG_CMD, tf->command);

	ata_pause(ap);
@@ -834,7 +834,7 @@ static void bfin_bmdma_setup(struct ata_queued_cmd *qc) 
	struct scatterlist *sg;

	unsigned int si;



	pr_debug("in atapi dma setup\n");

	dev_dbg(qc->ap->dev, "in atapi dma setup\n");

	/* Program the ATA_CTRL register with dir */

	if (qc->tf.flags & ATA_TFLAG_WRITE) {

		/* fill the ATAPI DMA controller */
@@ -870,7 +870,7 @@ static void bfin_bmdma_start(struct ata_queued_cmd *qc) 
	struct scatterlist *sg;

	unsigned int si;



	pr_debug("in atapi dma start\n");

	dev_dbg(qc->ap->dev, "in atapi dma start\n");

	if (!(ap->udma_mask || ap->mwdma_mask))

		return;
@@ -888,7 +888,7 @@ static void bfin_bmdma_start(struct ata_queued_cmd *qc) 
				sg_dma_address(sg) + sg_dma_len(sg));

		}

		enable_dma(CH_ATAPI_TX);

		pr_debug("enable udma write\n");

		dev_dbg(qc->ap->dev, "enable udma write\n");



		/* Send ATA DMA write command */

		bfin_exec_command(ap, &qc->tf);
@@ -898,7 +898,7 @@ static void bfin_bmdma_start(struct ata_queued_cmd *qc) 
			| XFER_DIR));

	} else {

		enable_dma(CH_ATAPI_RX);

		pr_debug("enable udma read\n");

		dev_dbg(qc->ap->dev, "enable udma read\n");



		/* Send ATA DMA read command */

		bfin_exec_command(ap, &qc->tf);
@@ -936,7 +936,7 @@ static void bfin_bmdma_stop(struct ata_queued_cmd *qc) 
	struct scatterlist *sg;

	unsigned int si;



	pr_debug("in atapi dma stop\n");

	dev_dbg(qc->ap->dev, "in atapi dma stop\n");

	if (!(ap->udma_mask || ap->mwdma_mask))

		return;
@@ -1157,6 +1157,8 @@ static unsigned char bfin_bmdma_status(struct ata_port *ap) 
		host_stat |= ATA_DMA_ERR;

	}



	dev_dbg(ap->dev, "ATAPI: host_stat=0x%x\n", host_stat);



	return host_stat;

}
@@ -1213,8 +1215,7 @@ static void bfin_irq_clear(struct ata_port *ap) 
{

	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;



	pr_debug("in atapi irq clear\n");



	dev_dbg(ap->dev, "in atapi irq clear\n");

	ATAPI_SET_INT_STATUS(base, ATAPI_GET_INT_STATUS(base)|ATAPI_DEV_INT

		| MULTI_DONE_INT | UDMAIN_DONE_INT | UDMAOUT_DONE_INT

		| MULTI_TERM_INT | UDMAIN_TERM_INT | UDMAOUT_TERM_INT);
@@ -1232,7 +1233,7 @@ static unsigned char bfin_irq_on(struct ata_port *ap) 
	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;

	u8 tmp;



	pr_debug("in atapi irq on\n");

	dev_dbg(ap->dev, "in atapi irq on\n");

	ap->ctl &= ~ATA_NIEN;

	ap->last_ctl = ap->ctl;
@@ -1255,7 +1256,7 @@ static void bfin_bmdma_freeze(struct ata_port *ap) 
{

	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;



	pr_debug("in atapi dma freeze\n");

	dev_dbg(ap->dev, "in atapi dma freeze\n");

	ap->ctl |= ATA_NIEN;

	ap->last_ctl = ap->ctl;
@@ -1328,7 +1329,7 @@ static void bfin_error_handler(struct ata_port *ap) 


static void bfin_port_stop(struct ata_port *ap)

{

	pr_debug("in atapi port stop\n");

	dev_dbg(ap->dev, "in atapi port stop\n");

	if (ap->udma_mask != 0 || ap->mwdma_mask != 0) {

		free_dma(CH_ATAPI_RX);

		free_dma(CH_ATAPI_TX);
@@ -1337,7 +1338,7 @@ static void bfin_port_stop(struct ata_port *ap) 


static int bfin_port_start(struct ata_port *ap)

{

	pr_debug("in atapi port start\n");

	dev_dbg(ap->dev, "in atapi port start\n");

	if (!(ap->udma_mask || ap->mwdma_mask))

		return 0;