i.MX: fsl_esdhc: allow use with cache enabled.
Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
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@ -190,6 +190,10 @@ static int esdhc_setup_data(struct mmc *mmc, struct mmc_data *data)
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esdhc_clrsetbits32(®s->wml, WML_RD_WML_MASK, wml_value);
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esdhc_clrsetbits32(®s->wml, WML_RD_WML_MASK, wml_value);
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esdhc_write32(®s->dsaddr, (u32)data->dest);
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esdhc_write32(®s->dsaddr, (u32)data->dest);
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} else {
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} else {
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flush_dcache_range((ulong)data->src,
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(ulong)data->src+data->blocks
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*data->blocksize);
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if (wml_value > WML_WR_WML_MAX)
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if (wml_value > WML_WR_WML_MAX)
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wml_value = WML_WR_WML_MAX_VAL;
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wml_value = WML_WR_WML_MAX_VAL;
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if ((esdhc_read32(®s->prsstat) & PRSSTAT_WPSPL) == 0) {
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if ((esdhc_read32(®s->prsstat) & PRSSTAT_WPSPL) == 0) {
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@ -249,7 +253,15 @@ static int esdhc_setup_data(struct mmc *mmc, struct mmc_data *data)
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return 0;
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return 0;
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}
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}
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static void check_and_invalidate_dcache_range
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(struct mmc_cmd *cmd,
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struct mmc_data *data) {
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unsigned start = (unsigned)data->dest ;
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unsigned size = roundup(ARCH_DMA_MINALIGN,
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data->blocks*data->blocksize);
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unsigned end = start+size ;
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invalidate_dcache_range(start, end);
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}
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/*
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/*
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* Sends a command out on the bus. Takes the mmc pointer,
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* Sends a command out on the bus. Takes the mmc pointer,
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* a command pointer, and an optional data pointer.
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* a command pointer, and an optional data pointer.
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@ -315,6 +327,9 @@ esdhc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
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while (!(esdhc_read32(®s->irqstat) & (IRQSTAT_CC | IRQSTAT_CTOE)))
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while (!(esdhc_read32(®s->irqstat) & (IRQSTAT_CC | IRQSTAT_CTOE)))
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;
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;
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if (data && (data->flags & MMC_DATA_READ))
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check_and_invalidate_dcache_range(cmd, data);
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irqstat = esdhc_read32(®s->irqstat);
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irqstat = esdhc_read32(®s->irqstat);
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esdhc_write32(®s->irqstat, irqstat);
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esdhc_write32(®s->irqstat, irqstat);
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