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imxmmc: move RSSR BLR

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DMA request source (RSSR) needs to be set only once (in probe).
DMA burst length (BLR) need to be set only in set_ios()

This cleans up imxmci_setup_data() and should make it a little
bit faster :)

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Paulius Zaleckas 2009-03-25 11:18:50 +02:00 committed by Pierre Ossman
parent b513b6cc0f
commit 34b2895016
1 changed files with 3 additions and 7 deletions
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10
drivers/mmc/host/imxmmc.c
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@ -307,13 +307,6 @@ static void imxmci_setup_data(struct imxmci_host *host, struct mmc_data *data)
wmb();
if (host->actual_bus_width == MMC_BUS_WIDTH_4)
BLR(host->dma) = 0; /* burst 64 byte read / 64 bytes write */
else
BLR(host->dma) = 16; /* burst 16 byte read / 16 bytes write */
RSSR(host->dma) = DMA_REQ_SDHC;
set_bit(IMXMCI_PEND_DMA_DATA_b, &host->pending_events);
clear_bit(IMXMCI_PEND_CPU_DATA_b, &host->pending_events);
@ -818,9 +811,11 @@ static void imxmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
if (ios->bus_width == MMC_BUS_WIDTH_4) {
host->actual_bus_width = MMC_BUS_WIDTH_4;
imx_gpio_mode(PB11_PF_SD_DAT3);
BLR(host->dma) = 0; /* burst 64 byte read/write */
} else {
host->actual_bus_width = MMC_BUS_WIDTH_1;
imx_gpio_mode(GPIO_PORTB | GPIO_IN | GPIO_PUEN | 11);
BLR(host->dma) = 16; /* burst 16 byte read/write */
}
if (host->power_mode != ios->power_mode) {
@ -1034,6 +1029,7 @@ static int __init imxmci_probe(struct platform_device *pdev)
}
host->dma_allocated = 1;
imx_dma_setup_handlers(host->dma, imxmci_dma_irq, NULL, host);
RSSR(host->dma) = DMA_REQ_SDHC;
tasklet_init(&host->tasklet, imxmci_tasklet_fnc, (unsigned long)host);
host->status_reg=0;