From patchwork Wed Sep 4 14:52:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Avri Altman X-Patchwork-Id: 13791054 Received: from esa3.hgst.iphmx.com (esa3.hgst.iphmx.com [216.71.153.141]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 84FA51DC187 for ; Wed, 4 Sep 2024 14:54:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.71.153.141 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725461684; cv=none; b=C0wqpWBZ1qX7MY3HKK3Cr2R9MUuVJJxGx5vwRiaGYaCc4zvUOhucdWiMDNpQjzS91HnXMQJgjqrS+ssAc30njjK/2HR2PM32wAXzTJBebZ/7fscFAYCx1qVim8dJ7+v/f9EAUvnwgIBjTBlcTg9JJZuReNX6mX7mGp6o10NwiNo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725461684; c=relaxed/simple; bh=heO7htxs1oEjmvCmBZOdtnNziTyF96CIdlHa0L1u2lY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=qCKsDZV9kR7gmNSMVmTt5GpkGcXOOxxXu4Q5cGXY9qWgnXbXSnxBVL26gTjkf/SUrDuzHn8MJl+R9ZfXkdsV5jqvbKKz5N2Fmh8SPQAuEYZqJOXG8PK8mgbeHiJXtTqIH2UeHmXr2brqpZ7EtaGyuK/v4KJXqwleXOvJ6QMlb/M= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=wdc.com; spf=pass smtp.mailfrom=wdc.com; dkim=pass (2048-bit key) header.d=wdc.com header.i=@wdc.com header.b=rID75ltP; arc=none smtp.client-ip=216.71.153.141 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=wdc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=wdc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=wdc.com header.i=@wdc.com header.b="rID75ltP" DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1725461683; x=1756997683; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=heO7htxs1oEjmvCmBZOdtnNziTyF96CIdlHa0L1u2lY=; b=rID75ltPuRwfmmmcRw3+ZYNPrhhQKpVLp11vW5wW6Mny+G3jPMd2pBT+ MiIvLf4kL30oWx3failLjaU+HFA7S1TjyT9mUuzQYeoAnr2TzlrJo+skd GiU+7o+mDr/SprHrbz2vA6RyD8qU9BBl7BAVhE6iTjJhkFqP8n949cDov RMP6wwdxormxo49FNzXcqAGc9Ta/Fqyt5BgrJ1obTDzL0spqMPXqQC9qg 1JyBzupNoeCOcIlo6FWkvV5ewo6Mdq7zU8UiRhsgDBFbNZrgaOSHWqCVq xBy52Jf6TQeFUzJUAcgTfABmN90qXvBxjuY+tl841Y+kum1gCyz4mslWK Q==; X-CSE-ConnectionGUID: jnMAYuh6Q3CYpWApNRLM4g== X-CSE-MsgGUID: hZeLGRvfR7eKTTcnuuTexQ== X-IronPort-AV: E=Sophos;i="6.10,202,1719849600"; d="scan'208";a="25915018" Received: from h199-255-45-15.hgst.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 04 Sep 2024 22:54:43 +0800 IronPort-SDR: 66d86695_WIVSBbxdHcBMJ/m+OsvmmepKy6XFvwfsP25tnoa4SgR4OuL SJb8AbTgtchGSP3i1eI15VljL+IpqTlwuh9ylrw== Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 04 Sep 2024 06:54:29 -0700 WDCIronportException: Internal Received: from avri-office.ad.shared (HELO avri-office.sdcorp.global.sandisk.com) ([10.45.31.142]) by uls-op-cesaip01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 04 Sep 2024 07:54:41 -0700 From: Avri Altman To: Ulf Hansson , linux-mmc@vger.kernel.org Cc: Adrian Hunter , Ricky WU , Shawn Lin , Avri Altman Subject: [PATCH v6 1/9] mmc: sd: SDUC Support Recognition Date: Wed, 4 Sep 2024 17:52:48 +0300 Message-Id: <20240904145256.3670679-2-avri.altman@wdc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240904145256.3670679-1-avri.altman@wdc.com> References: <20240904145256.3670679-1-avri.altman@wdc.com> Precedence: bulk X-Mailing-List: linux-mmc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 Signed-off-by: Avri Altman --- drivers/mmc/core/bus.c | 4 +++- drivers/mmc/core/card.h | 3 +++ drivers/mmc/core/sd.c | 33 +++++++++++++++++++++------------ drivers/mmc/core/sd.h | 2 +- drivers/mmc/core/sdio.c | 2 +- include/linux/mmc/card.h | 2 +- include/linux/mmc/sd.h | 1 + 7 files changed, 31 insertions(+), 16 deletions(-) diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 0ddaee0eae54..30763b342bd3 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -321,7 +321,9 @@ int mmc_add_card(struct mmc_card *card) case MMC_TYPE_SD: type = "SD"; if (mmc_card_blockaddr(card)) { - if (mmc_card_ext_capacity(card)) + if (mmc_card_ult_capacity(card)) + type = "SDUC"; + else if (mmc_card_ext_capacity(card)) type = "SDXC"; else type = "SDHC"; diff --git a/drivers/mmc/core/card.h b/drivers/mmc/core/card.h index b7754a1b8d97..64dcb463a4f4 100644 --- a/drivers/mmc/core/card.h +++ b/drivers/mmc/core/card.h @@ -23,6 +23,7 @@ #define MMC_CARD_SDXC (1<<3) /* card is SDXC */ #define MMC_CARD_REMOVED (1<<4) /* card has been removed */ #define MMC_STATE_SUSPENDED (1<<5) /* card is suspended */ +#define MMC_CARD_SDUC (1<<6) /* card is SDUC */ #define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT) #define mmc_card_readonly(c) ((c)->state & MMC_STATE_READONLY) @@ -30,11 +31,13 @@ #define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC) #define mmc_card_removed(c) ((c) && ((c)->state & MMC_CARD_REMOVED)) #define mmc_card_suspended(c) ((c)->state & MMC_STATE_SUSPENDED) +#define mmc_card_ult_capacity(c) ((c)->state & MMC_CARD_SDUC) #define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT) #define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY) #define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR) #define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC) +#define mmc_card_set_ult_capacity(c) ((c)->state |= MMC_CARD_SDUC) #define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED) #define mmc_card_set_suspended(c) ((c)->state |= MMC_STATE_SUSPENDED) #define mmc_card_clr_suspended(c) ((c)->state &= ~MMC_STATE_SUSPENDED) diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index ee37ad14e79e..eb9990d9db56 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -114,7 +114,7 @@ void mmc_decode_cid(struct mmc_card *card) /* * Given a 128-bit response, decode to our card CSD structure. */ -static int mmc_decode_csd(struct mmc_card *card) +static int mmc_decode_csd(struct mmc_card *card, bool is_sduc) { struct mmc_csd *csd = &card->csd; unsigned int e, m, csd_struct; @@ -158,9 +158,10 @@ static int mmc_decode_csd(struct mmc_card *card) mmc_card_set_readonly(card); break; case 1: + case 2: /* - * This is a block-addressed SDHC or SDXC card. Most - * interesting fields are unused and have fixed + * This is a block-addressed SDHC, SDXC or SDUC card. + * Most interesting fields are unused and have fixed * values. To avoid getting tripped by buggy cards, * we assume those fixed values ourselves. */ @@ -173,14 +174,19 @@ static int mmc_decode_csd(struct mmc_card *card) e = UNSTUFF_BITS(resp, 96, 3); csd->max_dtr = tran_exp[e] * tran_mant[m]; csd->cmdclass = UNSTUFF_BITS(resp, 84, 12); - csd->c_size = UNSTUFF_BITS(resp, 48, 22); - /* SDXC cards have a minimum C_SIZE of 0x00FFFF */ - if (csd->c_size >= 0xFFFF) + if (csd_struct == 1) + m = UNSTUFF_BITS(resp, 48, 22); + else + m = UNSTUFF_BITS(resp, 48, 28); + csd->c_size = m; + + if (csd->c_size >= 0x400000 && is_sduc) + mmc_card_set_ult_capacity(card); + else if (csd->c_size >= 0xFFFF) mmc_card_set_ext_capacity(card); - m = UNSTUFF_BITS(resp, 48, 22); - csd->capacity = (1 + m) << 10; + csd->capacity = (1 + (typeof(sector_t))m) << 10; csd->read_blkbits = 9; csd->read_partial = 0; @@ -841,8 +847,11 @@ int mmc_sd_get_cid(struct mmc_host *host, u32 ocr, u32 *cid, u32 *rocr) * block-addressed SDHC cards. */ err = mmc_send_if_cond(host, ocr); - if (!err) + if (!err) { ocr |= SD_OCR_CCS; + /* Set HO2T as well - SDUC card won't respond otherwise */ + ocr |= SD_OCR_2T; + } /* * If the host supports one of UHS-I modes, request the card @@ -887,7 +896,7 @@ int mmc_sd_get_cid(struct mmc_host *host, u32 ocr, u32 *cid, u32 *rocr) return err; } -int mmc_sd_get_csd(struct mmc_card *card) +int mmc_sd_get_csd(struct mmc_card *card, bool is_sduc) { int err; @@ -898,7 +907,7 @@ int mmc_sd_get_csd(struct mmc_card *card) if (err) return err; - err = mmc_decode_csd(card); + err = mmc_decode_csd(card, is_sduc); if (err) return err; @@ -1453,7 +1462,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr, } if (!oldcard) { - err = mmc_sd_get_csd(card); + err = mmc_sd_get_csd(card, false); if (err) goto free_card; diff --git a/drivers/mmc/core/sd.h b/drivers/mmc/core/sd.h index fe6dd46927a4..7e8beface2ca 100644 --- a/drivers/mmc/core/sd.h +++ b/drivers/mmc/core/sd.h @@ -10,7 +10,7 @@ struct mmc_host; struct mmc_card; int mmc_sd_get_cid(struct mmc_host *host, u32 ocr, u32 *cid, u32 *rocr); -int mmc_sd_get_csd(struct mmc_card *card); +int mmc_sd_get_csd(struct mmc_card *card, bool is_sduc); void mmc_decode_cid(struct mmc_card *card); int mmc_sd_setup_card(struct mmc_host *host, struct mmc_card *card, bool reinit); diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index 4fb247fde5c0..9566837c9848 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -769,7 +769,7 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr, * Read CSD, before selecting the card */ if (!oldcard && mmc_card_sd_combo(card)) { - err = mmc_sd_get_csd(card); + err = mmc_sd_get_csd(card, false); if (err) goto remove; diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index f34407cc2788..f39bce322365 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -35,7 +35,7 @@ struct mmc_csd { unsigned int wp_grp_size; unsigned int read_blkbits; unsigned int write_blkbits; - unsigned int capacity; + sector_t capacity; unsigned int read_partial:1, read_misalign:1, write_partial:1, diff --git a/include/linux/mmc/sd.h b/include/linux/mmc/sd.h index 6727576a8755..865cc0ca8543 100644 --- a/include/linux/mmc/sd.h +++ b/include/linux/mmc/sd.h @@ -36,6 +36,7 @@ /* OCR bit definitions */ #define SD_OCR_S18R (1 << 24) /* 1.8V switching request */ #define SD_ROCR_S18A SD_OCR_S18R /* 1.8V switching accepted by card */ +#define SD_OCR_2T (1 << 27) /* HO2T/CO2T - SDUC support */ #define SD_OCR_XPC (1 << 28) /* SDXC power control */ #define SD_OCR_CCS (1 << 30) /* Card Capacity Status */