diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-02-02 12:23:12 (GMT) |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-02-02 12:23:12 (GMT) |
commit | e92251762d02a46177d4105d1744041e3f8bc465 (patch) | |
tree | 4696c14854b2a5f3982a613fed63e01d941727f3 /drivers/mmc/au1xmmc.c | |
parent | a6df590dd8b7644c8e298e3b13442bcd6ceeb739 (diff) | |
download | linux-e92251762d02a46177d4105d1744041e3f8bc465.tar.xz |
[MMC] Add MMC command type flags
Some hosts need to know the command type, so pass it via a set of
flags in cmd->flags.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/mmc/au1xmmc.c')
-rw-r--r-- | drivers/mmc/au1xmmc.c | 59 |
1 files changed, 30 insertions, 29 deletions
diff --git a/drivers/mmc/au1xmmc.c b/drivers/mmc/au1xmmc.c index aaf0463..227c39a 100644 --- a/drivers/mmc/au1xmmc.c +++ b/drivers/mmc/au1xmmc.c @@ -194,7 +194,7 @@ static int au1xmmc_send_command(struct au1xmmc_host *host, int wait, u32 mmccmd = (cmd->opcode << SD_CMD_CI_SHIFT); - switch(cmd->flags) { + switch (mmc_rsp_type(cmd->flags)) { case MMC_RSP_R1: mmccmd |= SD_CMD_RT_1; break; @@ -483,34 +483,35 @@ static void au1xmmc_cmd_complete(struct au1xmmc_host *host, u32 status) cmd = mrq->cmd; cmd->error = MMC_ERR_NONE; - if ((cmd->flags & MMC_RSP_MASK) == MMC_RSP_SHORT) { - - /* Techincally, we should be getting all 48 bits of the response - * (SD_RESP1 + SD_RESP2), but because our response omits the CRC, - * our data ends up being shifted 8 bits to the right. In this case, - * that means that the OSR data starts at bit 31, so we can just - * read RESP0 and return that - */ - - cmd->resp[0] = au_readl(host->iobase + SD_RESP0); - } - else if ((cmd->flags & MMC_RSP_MASK) == MMC_RSP_LONG) { - u32 r[4]; - int i; - - r[0] = au_readl(host->iobase + SD_RESP3); - r[1] = au_readl(host->iobase + SD_RESP2); - r[2] = au_readl(host->iobase + SD_RESP1); - r[3] = au_readl(host->iobase + SD_RESP0); - - /* The CRC is omitted from the response, so really we only got - * 120 bytes, but the engine expects 128 bits, so we have to shift - * things up - */ - - for(i = 0; i < 4; i++) { - cmd->resp[i] = (r[i] & 0x00FFFFFF) << 8; - if (i != 3) cmd->resp[i] |= (r[i + 1] & 0xFF000000) >> 24; + if (cmd->flags & MMC_RSP_PRESENT) { + if (cmd->flags & MMC_RSP_136) { + u32 r[4]; + int i; + + r[0] = au_readl(host->iobase + SD_RESP3); + r[1] = au_readl(host->iobase + SD_RESP2); + r[2] = au_readl(host->iobase + SD_RESP1); + r[3] = au_readl(host->iobase + SD_RESP0); + + /* The CRC is omitted from the response, so really + * we only got 120 bytes, but the engine expects + * 128 bits, so we have to shift things up + */ + + for(i = 0; i < 4; i++) { + cmd->resp[i] = (r[i] & 0x00FFFFFF) << 8; + if (i != 3) + cmd->resp[i] |= (r[i + 1] & 0xFF000000) >> 24; + } + } else { + /* Techincally, we should be getting all 48 bits of + * the response (SD_RESP1 + SD_RESP2), but because + * our response omits the CRC, our data ends up + * being shifted 8 bits to the right. In this case, + * that means that the OSR data starts at bit 31, + * so we can just read RESP0 and return that + */ + cmd->resp[0] = au_readl(host->iobase + SD_RESP0); } } |