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

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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: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2006-06-04 17:51:15 +01:00 committed by Russell King
parent 12223dabc6
commit a3fd4a1b9c
4 changed files with 9 additions and 9 deletions
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2
drivers/mmc/at91_mci.c
View File

@ -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 */

2
drivers/mmc/imxmmc.c
View File

@ -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;

6
drivers/mmc/omap.c
View File

@ -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);

8
drivers/mmc/sdhci.c
View File

@ -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 "