forked from luck/tmp_suning_uos_patched
at91_mci: Cover more AT91RM9200 and AT91SAM9261 errata.
According to the documentation the AT91SAM9261 MCI shares the block size limitations of the AT91RM9200 MCI. Also the errata documentation for AT91RM9200 and AT91SAM9261 state that stream commands are not supported. This has not been tested on actual hardware. Signed-off-by: Ville Syrjala <syrjala@sci.fi> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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@ -520,11 +520,19 @@ static void at91_mci_send_command(struct at91mci_host *host, struct mmc_command
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if (data) {
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if ( cpu_is_at91rm9200() && (data->blksz & 0x3) ) {
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pr_debug("Unsupported block size\n");
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cmd->error = -EINVAL;
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mmc_request_done(host->mmc, host->request);
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return;
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if (cpu_is_at91rm9200() || cpu_is_at91sam9261()) {
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if (data->blksz & 0x3) {
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pr_debug("Unsupported block size\n");
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cmd->error = -EINVAL;
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mmc_request_done(host->mmc, host->request);
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return;
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}
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if (data->flags & MMC_DATA_STREAM) {
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pr_debug("Stream commands not supported\n");
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cmd->error = -EINVAL;
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mmc_request_done(host->mmc, host->request);
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return;
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}
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}
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block_length = data->blksz;
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@ -577,7 +585,7 @@ static void at91_mci_send_command(struct at91mci_host *host, struct mmc_command
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mr |= AT91_MCI_PDCMODE;
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at91_mci_write(host, AT91_MCI_MR, mr);
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if (!cpu_is_at91rm9200())
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if (!(cpu_is_at91rm9200() || cpu_is_at91sam9261()))
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at91_mci_write(host, AT91_MCI_BLKR,
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AT91_MCI_BLKR_BCNT(blocks) |
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AT91_MCI_BLKR_BLKLEN(block_length));
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