From 9da3cbaf2881df97e502593c49c93f55eb696091 Mon Sep 17 00:00:00 2001 From: Ville Syrjala Date: Mon, 9 Jun 2008 22:06:44 +0300 Subject: [PATCH] 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 Signed-off-by: Nicolas Ferre Signed-off-by: Pierre Ossman --- drivers/mmc/host/at91_mci.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c index d3e96ff4142..f8c3f7c330e 100644 --- a/drivers/mmc/host/at91_mci.c +++ b/drivers/mmc/host/at91_mci.c @@ -520,11 +520,19 @@ static void at91_mci_send_command(struct at91mci_host *host, struct mmc_command if (data) { - if ( cpu_is_at91rm9200() && (data->blksz & 0x3) ) { - pr_debug("Unsupported block size\n"); - cmd->error = -EINVAL; - mmc_request_done(host->mmc, host->request); - return; + if (cpu_is_at91rm9200() || cpu_is_at91sam9261()) { + if (data->blksz & 0x3) { + pr_debug("Unsupported block size\n"); + cmd->error = -EINVAL; + mmc_request_done(host->mmc, host->request); + return; + } + if (data->flags & MMC_DATA_STREAM) { + pr_debug("Stream commands not supported\n"); + cmd->error = -EINVAL; + mmc_request_done(host->mmc, host->request); + return; + } } block_length = data->blksz; @@ -577,7 +585,7 @@ static void at91_mci_send_command(struct at91mci_host *host, struct mmc_command mr |= AT91_MCI_PDCMODE; at91_mci_write(host, AT91_MCI_MR, mr); - if (!cpu_is_at91rm9200()) + if (!(cpu_is_at91rm9200() || cpu_is_at91sam9261())) at91_mci_write(host, AT91_MCI_BLKR, AT91_MCI_BLKR_BCNT(blocks) | AT91_MCI_BLKR_BLKLEN(block_length)); -- 2.41.1