mmc: Add a SDHCI quirk for boards that have no CD

Some boards have no Card Detect wired.  In that case, set the CD test
bits in the standard interface.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
diff --git a/include/sdhci.h b/include/sdhci.h
index 9d37183..d41287f 100644
--- a/include/sdhci.h
+++ b/include/sdhci.h
@@ -76,6 +76,8 @@
 #define  SDHCI_SPACE_AVAILABLE	0x00000400
 #define  SDHCI_DATA_AVAILABLE	0x00000800
 #define  SDHCI_CARD_PRESENT	0x00010000
+#define  SDHCI_CARD_STATE_STABLE	0x00020000
+#define  SDHCI_CARD_DETECT_PIN_LEVEL	0x00040000
 #define  SDHCI_WRITE_PROTECT	0x00080000
 
 #define SDHCI_HOST_CONTROL	0x28
@@ -87,7 +89,9 @@
 #define   SDHCI_CTRL_ADMA1	0x08
 #define   SDHCI_CTRL_ADMA32	0x10
 #define   SDHCI_CTRL_ADMA64	0x18
-#define   SDHCI_CTRL_8BITBUS	0x20
+#define  SDHCI_CTRL_8BITBUS	0x20
+#define  SDHCI_CTRL_CD_TEST_INS	0x40
+#define  SDHCI_CTRL_CD_TEST	0x80
 
 #define SDHCI_POWER_CONTROL	0x29
 #define  SDHCI_POWER_ON		0x01
@@ -219,6 +223,7 @@
 #define SDHCI_QUIRK_BROKEN_R1B		(1 << 2)
 #define SDHCI_QUIRK_NO_HISPD_BIT	(1 << 3)
 #define SDHCI_QUIRK_BROKEN_VOLTAGE	(1 << 4)
+#define SDHCI_QUIRK_NO_CD		(1 << 5)
 
 /* to make gcc happy */
 struct sdhci_host;