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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2006-06-04 12:51:15 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-06-19 08:05:08 -0400
commita3fd4a1b9ced850ac1a9d5bb9f8fab494d07f3fa (patch)
treedc2b9354fe087663cc862a966d12824601702c29 /drivers
parent12223dabc617a4babfba4e17feb1ed88e8cfeb8f (diff)
[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: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mmc/at91_mci.c2
-rw-r--r--drivers/mmc/imxmmc.c2
-rw-r--r--drivers/mmc/omap.c6
-rw-r--r--drivers/mmc/sdhci.c8
4 files changed, 9 insertions, 9 deletions
diff --git a/drivers/mmc/at91_mci.c b/drivers/mmc/at91_mci.c
index 88f0eef9cf33..42284e1d4628 100644
--- a/drivers/mmc/at91_mci.c
+++ b/drivers/mmc/at91_mci.c
@@ -411,7 +411,7 @@ static unsigned int at91_mci_send_command(struct at91mci_host *host, struct mmc_
411 } 411 }
412 412
413 if (data) { 413 if (data) {
414 block_length = 1 << data->blksz_bits; 414 block_length = data->blksz;
415 blocks = data->blocks; 415 blocks = data->blocks;
416 416
417 /* always set data start - also set direction flag for read */ 417 /* always set data start - also set direction flag for read */
diff --git a/drivers/mmc/imxmmc.c b/drivers/mmc/imxmmc.c
index a4eb1d0e7a71..5c62f4e6ad06 100644
--- a/drivers/mmc/imxmmc.c
+++ b/drivers/mmc/imxmmc.c
@@ -228,7 +228,7 @@ static int imxmci_busy_wait_for_status(struct imxmci_host *host,
228static void imxmci_setup_data(struct imxmci_host *host, struct mmc_data *data) 228static void imxmci_setup_data(struct imxmci_host *host, struct mmc_data *data)
229{ 229{
230 unsigned int nob = data->blocks; 230 unsigned int nob = data->blocks;
231 unsigned int blksz = 1 << data->blksz_bits; 231 unsigned int blksz = data->blksz;
232 unsigned int datasz = nob * blksz; 232 unsigned int datasz = nob * blksz;
233 int i; 233 int i;
234 234
diff --git a/drivers/mmc/omap.c b/drivers/mmc/omap.c
index becb3c68c34d..c25244b3657b 100644
--- a/drivers/mmc/omap.c
+++ b/drivers/mmc/omap.c
@@ -584,10 +584,10 @@ mmc_omap_prepare_dma(struct mmc_omap_host *host, struct mmc_data *data)
584 int sync_dev = 0; 584 int sync_dev = 0;
585 585
586 data_addr = io_v2p((u32) host->base) + OMAP_MMC_REG_DATA; 586 data_addr = io_v2p((u32) host->base) + OMAP_MMC_REG_DATA;
587 frame = 1 << data->blksz_bits; 587 frame = data->blksz;
588 count = sg_dma_len(sg); 588 count = sg_dma_len(sg);
589 589
590 if ((data->blocks == 1) && (count > (1 << data->blksz_bits))) 590 if ((data->blocks == 1) && (count > data->blksz))
591 count = frame; 591 count = frame;
592 592
593 host->dma_len = count; 593 host->dma_len = count;
@@ -776,7 +776,7 @@ mmc_omap_prepare_data(struct mmc_omap_host *host, struct mmc_request *req)
776 } 776 }
777 777
778 778
779 block_size = 1 << data->blksz_bits; 779 block_size = data->blksz;
780 780
781 OMAP_MMC_WRITE(host->base, NBLK, data->blocks - 1); 781 OMAP_MMC_WRITE(host->base, NBLK, data->blocks - 1);
782 OMAP_MMC_WRITE(host->base, BLEN, block_size - 1); 782 OMAP_MMC_WRITE(host->base, BLEN, block_size - 1);
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 6bfcdbc7491e..8e9100bd57ef 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -268,7 +268,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data)
268 } 268 }
269 269
270 DBG("blksz %04x blks %04x flags %08x\n", 270 DBG("blksz %04x blks %04x flags %08x\n",
271 1 << data->blksz_bits, data->blocks, data->flags); 271 data->blksz, data->blocks, data->flags);
272 DBG("tsac %d ms nsac %d clk\n", 272 DBG("tsac %d ms nsac %d clk\n",
273 data->timeout_ns / 1000000, data->timeout_clks); 273 data->timeout_ns / 1000000, data->timeout_clks);
274 274
@@ -282,7 +282,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data)
282 282
283 writew(mode, host->ioaddr + SDHCI_TRANSFER_MODE); 283 writew(mode, host->ioaddr + SDHCI_TRANSFER_MODE);
284 284
285 writew(1 << data->blksz_bits, host->ioaddr + SDHCI_BLOCK_SIZE); 285 writew(data->blksz, host->ioaddr + SDHCI_BLOCK_SIZE);
286 writew(data->blocks, host->ioaddr + SDHCI_BLOCK_COUNT); 286 writew(data->blocks, host->ioaddr + SDHCI_BLOCK_COUNT);
287 287
288 if (host->flags & SDHCI_USE_DMA) { 288 if (host->flags & SDHCI_USE_DMA) {
@@ -294,7 +294,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data)
294 294
295 writel(sg_dma_address(data->sg), host->ioaddr + SDHCI_DMA_ADDRESS); 295 writel(sg_dma_address(data->sg), host->ioaddr + SDHCI_DMA_ADDRESS);
296 } else { 296 } else {
297 host->size = (1 << data->blksz_bits) * data->blocks; 297 host->size = data->blksz * data->blocks;
298 298
299 host->cur_sg = data->sg; 299 host->cur_sg = data->sg;
300 host->num_sg = data->sg_len; 300 host->num_sg = data->sg_len;
@@ -335,7 +335,7 @@ static void sdhci_finish_data(struct sdhci_host *host)
335 blocks = 0; 335 blocks = 0;
336 else 336 else
337 blocks = readw(host->ioaddr + SDHCI_BLOCK_COUNT); 337 blocks = readw(host->ioaddr + SDHCI_BLOCK_COUNT);
338 data->bytes_xfered = (1 << data->blksz_bits) * (data->blocks - blocks); 338 data->bytes_xfered = data->blksz * (data->blocks - blocks);
339 339
340 if ((data->error == MMC_ERR_NONE) && blocks) { 340 if ((data->error == MMC_ERR_NONE) && blocks) {
341 printk(KERN_ERR "%s: Controller signalled completion even " 341 printk(KERN_ERR "%s: Controller signalled completion even "