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-rw-r--r--sys/dev/mmc/mmcreg.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/dev/mmc/mmcreg.h b/sys/dev/mmc/mmcreg.h
index 1b868cb..fddaf97 100644
--- a/sys/dev/mmc/mmcreg.h
+++ b/sys/dev/mmc/mmcreg.h
@@ -292,6 +292,7 @@ struct mmc_request {
*
* The MMC_OCR_CCS appears to be valid for only SD cards.
*/
+#define MMC_OCR_VOLTAGE 0x3fffffffU /* Vdd Voltage mask */
#define MMC_OCR_LOW_VOLTAGE (1u << 7) /* Low Voltage Range -- tbd */
#define MMC_OCR_200_210 (1U << 8) /* Vdd voltage 2.00 ~ 2.10 */
#define MMC_OCR_210_220 (1U << 9) /* Vdd voltage 2.10 ~ 2.20 */
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