diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2016-05-01 16:04:40 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2016-05-01 16:04:40 +0000 |
| commit | 6bd1ebc4f6372213e2d48e527b38f1d9c3c14f0e (patch) | |
| tree | 80ea831bd0078578a4716851e31069b80e26e830 /sys/dev/sdmmc/sdmmcreg.h | |
| parent | 9350001d745387d778c568a6f38cc76cb9f0beb8 (diff) | |
Add support for changing the bus width to the sdmmc subsystem and the sdhc(4)
controller. Use this to switch SD cards to a 4-bit bus if they support it.
ok deraadt@, jsg@
Diffstat (limited to 'sys/dev/sdmmc/sdmmcreg.h')
| -rw-r--r-- | sys/dev/sdmmc/sdmmcreg.h | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/sys/dev/sdmmc/sdmmcreg.h b/sys/dev/sdmmc/sdmmcreg.h index 57f61b125d9..7036217cc69 100644 --- a/sys/dev/sdmmc/sdmmcreg.h +++ b/sys/dev/sdmmc/sdmmcreg.h @@ -1,4 +1,4 @@ -/* $OpenBSD: sdmmcreg.h,v 1.8 2016/01/10 14:11:43 kettenis Exp $ */ +/* $OpenBSD: sdmmcreg.h,v 1.9 2016/05/01 16:04:39 kettenis Exp $ */ /* * Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org> @@ -45,6 +45,7 @@ /* SD application commands */ /* response type */ #define SD_APP_SET_BUS_WIDTH 6 /* R1 */ #define SD_APP_OP_COND 41 /* R3 */ +#define SD_APP_SEND_SCR 51 /* R1 */ /* OCR bits */ #define MMC_OCR_MEM_READY (1<<31) /* memory power-up status bit */ @@ -236,6 +237,29 @@ #define SD_CID_PSN(resp) MMC_RSP_BITS((resp), 24, 32) #define SD_CID_MDT(resp) MMC_RSP_BITS((resp), 8, 12) +/* SCR (SD Configuration Register) */ +#define SCR_STRUCTURE(scr) MMC_RSP_BITS((scr), 60, 4) +#define SCR_STRUCTURE_VER_1_0 0 /* Version 1.0 */ +#define SCR_SD_SPEC(scr) MMC_RSP_BITS((scr), 56, 4) +#define SCR_SD_SPEC_VER_1_0 0 /* Version 1.0 and 1.01 */ +#define SCR_SD_SPEC_VER_1_10 1 /* Version 1.10 */ +#define SCR_SD_SPEC_VER_2 2 /* Version 2.00 or Version 3.0X */ +#define SCR_DATA_STAT_AFTER_ERASE(scr) MMC_RSP_BITS((scr), 55, 1) +#define SCR_SD_SECURITY(scr) MMC_RSP_BITS((scr), 52, 3) +#define SCR_SD_SECURITY_NONE 0 /* no security */ +#define SCR_SD_SECURITY_1_0 1 /* security protocol 1.0 */ +#define SCR_SD_SECURITY_1_0_2 2 /* security protocol 1.0 */ +#define SCR_SD_BUS_WIDTHS(scr) MMC_RSP_BITS((scr), 48, 4) +#define SCR_SD_BUS_WIDTHS_1BIT (1 << 0) /* 1bit (DAT0) */ +#define SCR_SD_BUS_WIDTHS_4BIT (1 << 2) /* 4bit (DAT0-3) */ +#define SCR_SD_SPEC3(scr) MMC_RSP_BITS((scr), 47, 1) +#define SCR_EX_SECURITY(scr) MMC_RSP_BITS((scr), 43, 4) +#define SCR_SD_SPEC4(scr) MMC_RSP_BITS((scr), 42, 1) +#define SCR_RESERVED(scr) MMC_RSP_BITS((scr), 34, 8) +#define SCR_CMD_SUPPORT_CMD23(scr) MMC_RSP_BITS((scr), 33, 1) +#define SCR_CMD_SUPPORT_CMD20(scr) MMC_RSP_BITS((scr), 32, 1) +#define SCR_RESERVED2(scr) MMC_RSP_BITS((scr), 0, 32) + /* Might be slow, but it should work on big and little endian systems. */ #define MMC_RSP_BITS(resp, start, len) __bitfield((resp), (start)-8, (len)) static __inline int |