c00372e41b
[ Upstream commit fce2ce78af1e14dc1316aaddb5b3308be05cf452 ] Ultra Capacity SD cards (SDUC) was already introduced in SD7.0. Those cards support capacity larger than 2TB and up to including 128TB. ACMD41 was extended to support the host-card handshake during initialization. The card expects that the HCS & HO2T bits to be set in the command argument, and sets the applicable bits in the R3 returned response. On the contrary, if a SDUC card is inserted to a non-supporting host, it will never respond to this ACMD41 until eventually, the host will timed out and give up. Also, add SD CSD version 3.0 - designated for SDUC, and properly parse the csd register as the c_size field got expanded to 28 bits. Do not enable SDUC for now - leave it to the last patch in the series. Tested-by: Ricky WU <ricky_wu@realtek.com> Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Avri Altman <avri.altman@wdc.com> Link: https://lore.kernel.org/r/20241006051148.160278-2-avri.altman@wdc.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Stable-dep-of: 869d37475788 ("mmc: core: Use GFP_NOIO in ACMD22") Signed-off-by: Sasha Levin <sashal@kernel.org>
102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* include/linux/mmc/sd.h
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*
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* Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved.
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*/
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#ifndef LINUX_MMC_SD_H
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#define LINUX_MMC_SD_H
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/* SD commands type argument response */
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/* class 0 */
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/* This is basically the same command as for MMC with some quirks. */
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#define SD_SEND_RELATIVE_ADDR 3 /* bcr R6 */
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#define SD_SEND_IF_COND 8 /* bcr [11:0] See below R7 */
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#define SD_SWITCH_VOLTAGE 11 /* ac R1 */
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/* class 10 */
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#define SD_SWITCH 6 /* adtc [31:0] See below R1 */
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/* class 5 */
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#define SD_ERASE_WR_BLK_START 32 /* ac [31:0] data addr R1 */
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#define SD_ERASE_WR_BLK_END 33 /* ac [31:0] data addr R1 */
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/* Application commands */
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#define SD_APP_SET_BUS_WIDTH 6 /* ac [1:0] bus width R1 */
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#define SD_APP_SD_STATUS 13 /* adtc R1 */
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#define SD_APP_SEND_NUM_WR_BLKS 22 /* adtc R1 */
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#define SD_APP_OP_COND 41 /* bcr [31:0] OCR R3 */
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#define SD_APP_SEND_SCR 51 /* adtc R1 */
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/* class 11 */
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#define SD_READ_EXTR_SINGLE 48 /* adtc [31:0] R1 */
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#define SD_WRITE_EXTR_SINGLE 49 /* adtc [31:0] R1 */
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/* OCR bit definitions */
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#define SD_OCR_S18R (1 << 24) /* 1.8V switching request */
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#define SD_ROCR_S18A SD_OCR_S18R /* 1.8V switching accepted by card */
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#define SD_OCR_2T (1 << 27) /* HO2T/CO2T - SDUC support */
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#define SD_OCR_XPC (1 << 28) /* SDXC power control */
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#define SD_OCR_CCS (1 << 30) /* Card Capacity Status */
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/*
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* SD_SWITCH argument format:
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*
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* [31] Check (0) or switch (1)
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* [30:24] Reserved (0)
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* [23:20] Function group 6
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* [19:16] Function group 5
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* [15:12] Function group 4
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* [11:8] Function group 3
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* [7:4] Function group 2
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* [3:0] Function group 1
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*/
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/*
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* SD_SEND_IF_COND argument format:
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*
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* [31:12] Reserved (0)
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* [11:8] Host Voltage Supply Flags
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* [7:0] Check Pattern (0xAA)
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*/
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/*
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* SCR field definitions
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*/
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#define SCR_SPEC_VER_0 0 /* Implements system specification 1.0 - 1.01 */
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#define SCR_SPEC_VER_1 1 /* Implements system specification 1.10 */
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#define SCR_SPEC_VER_2 2 /* Implements system specification 2.00-3.0X */
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/*
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* SD bus widths
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*/
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#define SD_BUS_WIDTH_1 0
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#define SD_BUS_WIDTH_4 2
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/*
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* SD_SWITCH mode
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*/
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#define SD_SWITCH_CHECK 0
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#define SD_SWITCH_SET 1
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/*
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* SD_SWITCH function groups
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*/
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#define SD_SWITCH_GRP_ACCESS 0
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/*
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* SD_SWITCH access modes
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*/
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#define SD_SWITCH_ACCESS_DEF 0
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#define SD_SWITCH_ACCESS_HS 1
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/*
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* Erase/discard
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*/
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#define SD_ERASE_ARG 0x00000000
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#define SD_DISCARD_ARG 0x00000001
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#endif /* LINUX_MMC_SD_H */
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