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authorThierry Reding <thierry.reding@avionic-design.de>2012-01-02 01:15:37 +0000
committerAndy Fleming <afleming@freescale.com>2012-01-08 21:28:27 -0600
commit48972d907a28de17c2a5108a3ee3d5f3eb434376 (patch)
treebfaf84d0cd7a3ed6e027e52cdd5cbf673ae788e7 /drivers/mmc/sdhci.c
parent314284b1567f1ce29c19060641e7f213146f7ab8 (diff)
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mmc: Implement card detection.
Check for card detect each time an MMC/SD device is initialized. If card detection is not implemented, this code behaves as before and continues assuming a card is present. If no card is detected, has_init is reset for the MMC/SD device (to force initialization next time) and an error is returned. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Tested-by: Jason Liu <jason.hui@linaro.org>
Diffstat (limited to 'drivers/mmc/sdhci.c')
-rw-r--r--drivers/mmc/sdhci.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index fce0ef0..fc904b5 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -390,6 +390,7 @@ int add_sdhci(struct sdhci_host *host, u32 max_clk, u32 min_clk)
mmc->send_cmd = sdhci_send_command;
mmc->set_ios = sdhci_set_ios;
mmc->init = sdhci_init;
+ mmc->getcd = NULL;
caps = sdhci_readl(host, SDHCI_CAPABILITIES);
#ifdef CONFIG_MMC_SDMA