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Commit a3fd4a1b authored by Russell King's avatar Russell King Committed by Russell King
Browse files

[MMC] Convert all hosts except mmci to use data->blksz 



The MMC specification allows non-power of two block sizes.  As such,
we should not pass the log2 block size to host drivers, but instead
pass the byte size.

However, ARM MMCI can only work with log2 block size, so continue to
pass both the log2 block size and byte block size.  This means that
for the moment, the byte block size must remain a power of two, but
this is the first stage of removing this restriction for other hosts.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 12223dab

drivers/mmc/at91_mci.c

+1 −1
Original line number Diff line number Diff line
@@ -411,7 +411,7 @@ static unsigned int at91_mci_send_command(struct at91mci_host *host, struct mmc_ 
	}



	if (data) {

		block_length = 1 << data->blksz_bits;

		block_length = data->blksz;

		blocks = data->blocks;



		/* always set data start - also set direction flag for read */

drivers/mmc/imxmmc.c

+1 −1
Original line number Diff line number Diff line
@@ -228,7 +228,7 @@ static int imxmci_busy_wait_for_status(struct imxmci_host *host, 
static void imxmci_setup_data(struct imxmci_host *host, struct mmc_data *data)

{

	unsigned int nob = data->blocks;

	unsigned int blksz = 1 << data->blksz_bits;

	unsigned int blksz = data->blksz;

	unsigned int datasz = nob * blksz;

	int i;

drivers/mmc/omap.c

+3 −3
Original line number Diff line number Diff line
@@ -584,10 +584,10 @@ mmc_omap_prepare_dma(struct mmc_omap_host *host, struct mmc_data *data) 
	int sync_dev = 0;



	data_addr = io_v2p((u32) host->base) + OMAP_MMC_REG_DATA;

	frame = 1 << data->blksz_bits;

	frame = data->blksz;

	count = sg_dma_len(sg);



	if ((data->blocks == 1) && (count > (1 << data->blksz_bits)))

	if ((data->blocks == 1) && (count > data->blksz))

		count = frame;



	host->dma_len = count;
@@ -776,7 +776,7 @@ mmc_omap_prepare_data(struct mmc_omap_host *host, struct mmc_request *req) 
	}





	block_size = 1 << data->blksz_bits;

	block_size = data->blksz;



	OMAP_MMC_WRITE(host->base, NBLK, data->blocks - 1);

	OMAP_MMC_WRITE(host->base, BLEN, block_size - 1);

drivers/mmc/sdhci.c

+4 −4
Original line number Diff line number Diff line
@@ -268,7 +268,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data) 
	}



	DBG("blksz %04x blks %04x flags %08x\n",

		1 << data->blksz_bits, data->blocks, data->flags);

		data->blksz, data->blocks, data->flags);

	DBG("tsac %d ms nsac %d clk\n",

		data->timeout_ns / 1000000, data->timeout_clks);
@@ -282,7 +282,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data) 


	writew(mode, host->ioaddr + SDHCI_TRANSFER_MODE);



	writew(1 << data->blksz_bits, host->ioaddr + SDHCI_BLOCK_SIZE);

	writew(data->blksz, host->ioaddr + SDHCI_BLOCK_SIZE);

	writew(data->blocks, host->ioaddr + SDHCI_BLOCK_COUNT);



	if (host->flags & SDHCI_USE_DMA) {
@@ -294,7 +294,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data) 


		writel(sg_dma_address(data->sg), host->ioaddr + SDHCI_DMA_ADDRESS);

	} else {

		host->size = (1 << data->blksz_bits) * data->blocks;

		host->size = data->blksz * data->blocks;



		host->cur_sg = data->sg;

		host->num_sg = data->sg_len;
@@ -335,7 +335,7 @@ static void sdhci_finish_data(struct sdhci_host *host) 
		blocks = 0;

	else

		blocks = readw(host->ioaddr + SDHCI_BLOCK_COUNT);

	data->bytes_xfered = (1 << data->blksz_bits) * (data->blocks - blocks);

	data->bytes_xfered = data->blksz * (data->blocks - blocks);



	if ((data->error == MMC_ERR_NONE) && blocks) {

		printk(KERN_ERR "%s: Controller signalled completion even "