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tifm_sd: fix hardware timeout setup

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The register access order when setting hardware timeout was incorrect and
causing problems (wrong timeout intervals). This is now fixed.

Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Alex Dubov 2006-12-08 16:50:50 +11:00 committed by Pierre Ossman
parent 0803dd0c25
commit 83d420ba92
1 changed files with 7 additions and 8 deletions
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15
drivers/mmc/tifm_sd.c
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@ -442,22 +442,21 @@ static void tifm_sd_set_data_timeout(struct tifm_sd *host,
return;
data_timeout += data->timeout_ns /
((1000000000 / host->clk_freq) * host->clk_div);
data_timeout *= 10; // call it fudge factor for now
((1000000000UL / host->clk_freq) * host->clk_div);
if (data_timeout < 0xffff) {
writel((~TIFM_MMCSD_DPE) &
readl(sock->addr + SOCK_MMCSD_SDIO_MODE_CONFIG),
sock->addr + SOCK_MMCSD_SDIO_MODE_CONFIG);
writel(data_timeout, sock->addr + SOCK_MMCSD_DATA_TO);
writel((~TIFM_MMCSD_DPE)
& readl(sock->addr + SOCK_MMCSD_SDIO_MODE_CONFIG),
sock->addr + SOCK_MMCSD_SDIO_MODE_CONFIG);
} else {
writel(TIFM_MMCSD_DPE |
readl(sock->addr + SOCK_MMCSD_SDIO_MODE_CONFIG),
sock->addr + SOCK_MMCSD_SDIO_MODE_CONFIG);
data_timeout = (data_timeout >> 10) + 1;
if(data_timeout > 0xffff)
data_timeout = 0; /* set to unlimited */
writel(data_timeout, sock->addr + SOCK_MMCSD_DATA_TO);
writel(TIFM_MMCSD_DPE
| readl(sock->addr + SOCK_MMCSD_SDIO_MODE_CONFIG),
sock->addr + SOCK_MMCSD_SDIO_MODE_CONFIG);
}
}