PERFORCE change 208896 for review
Robert Watson
rwatson at FreeBSD.org
Sat Mar 31 22:47:22 UTC 2012
http://p4web.freebsd.org/@@208896?ac=10
Change 208896 by rwatson at rwatson_svr_ctsrd_mipsbuild on 2012/03/31 22:46:58
Add definitions for Altera SD Card IP Core register and buffer
offsets, as well as a few common SD Card commands that we'll need
in the driver.
Affected files ...
.. //depot/projects/ctsrd/beribsd/src/sys/dev/altera/sdcard/altera_sdcard.h#2 edit
Differences ...
==== //depot/projects/ctsrd/beribsd/src/sys/dev/altera/sdcard/altera_sdcard.h#2 (text+ko) ====
@@ -96,6 +96,21 @@
struct bio *bp);
/*
+ * I/O register/buffer offsets, from Table 4.1.1 in the Altera University
+ * Program SD Card IP Core specification.
+ */
+#define ALTERA_SDCARD_OFF_RXTX_BUFFER 0 /* 512-byte I/O buffer */
+#define ALTERA_SDCARD_OFF_CID 512 /* 16-byte Card ID number */
+#define ALTERA_SDCARD_OFF_CSD 528 /* 16-byte Card Specific Data */
+#define ALTERA_SDCARD_OFF_OCR 544 /* Operating Conditions Reg */
+#define ALTERA_SDCARD_OFF_SR 548 /* SD Card Status Register */
+#define ALTERA_SDCARD_OFF_RCA 552 /* Relative Card Address Reg */
+#define ALTERA_SDCARD_OFF_CMD_ARG 556 /* Command Argument Register */
+#define ALTERA_SDCARD_OFF_CMD 560 /* Command Register */
+#define ALTERA_SDCARD_OFF_ASR 564 /* Auxiliary Status Register */
+#define ALTERA_SDCARD_OFF_RR1 568 /* Response R1 */
+
+/*
* The Altera IP Core provides a 16-bit "Additional Status Register" (ASR)
* beyond those described in the SD Card specification that captures IP Core
* transaction state, such as whether the last command is in progress, the
@@ -112,7 +127,16 @@
* Although SD Cards may have various sector sizes, the Altera IP Core
* requires that I/O be done in 512-byte chunks.
*/
-#define ALTERA_SDCARD_SECTORSIZE 512
+#define ALTERA_SDCARD_SECTORSIZE 512
+
+/*
+ * SD Card commands used in this driver.
+ */
+#define ALTERA_SDCARD_CMD_SEND_RCA 0x03 /* Retrieve card RCA. */
+#define ALTERA_SDCARD_CMD_SEND_CSD 0x09 /* Retrieve CSD register. */
+#define ALTERA_SDCARD_CMD_SEND_CID 0x0A /* Retrieve CID register. */
+#define ALTERA_SDCARD_CMD_READ_BLOCK 0x11 /* Read block from disk. */
+#define ALTERA_SDCARD_CMD_WRITE_BLOCK 0x18 /* Write block to disk. */
/*
* Functions exposed by the device driver core to newbus(9) bus attachment
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