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[79.144.196.182]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-47f63e499c2sm26450052f8f.4.2026.07.20.01.52.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Jul 2026 01:52:09 -0700 (PDT) From: Jorge Ramirez-Ortiz To: jorge.ramirez@oss.qualcomm.com, trini@konsulko.com, jens.wiklander@linaro.org, ilias.apalodimas@linaro.org, neil.armstrong@linaro.org, bhupesh.linux@gmail.com, n-francis@ti.com, marek.vasut+renesas@mailbox.org, igor.belwon@mentallysanemainliners.org, shawn.lin@rock-chips.com, yoshihiro.shimoda.uh@renesas.com, alchark@gmail.com, tuyen.dang.xa@renesas.com, macpaul.lin@mediatek.com, padmarao.begari@amd.com, jstephan@baylibre.com, bb@ti.com, j-mcarthur@ti.com, venkyada@qti.qualcomm.com, hayashi.kunihiko@socionext.com Cc: u-boot@lists.denx.de, sumit.garg@kernel.org Subject: [PATCH v1 2/7] ufs: add RPMB transport over SCSI SECURITY PROTOCOL Date: Mon, 20 Jul 2026 10:51:42 +0200 Message-ID: <20260720085202.537019-3-jorge.ramirez@oss.qualcomm.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260720085202.537019-1-jorge.ramirez@oss.qualcomm.com> References: <20260720085202.537019-1-jorge.ramirez@oss.qualcomm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: KV4zTxrEG2FPhhN1nOhzhIB83148fNmV X-Authority-Analysis: v=2.4 cv=EcH4hvmC c=1 sm=1 tr=0 ts=6a5de1bc cx=c_pps a=UgVkIMxJMSkC9lv97toC5g==:117 a=2lELrtOEK2EaG96G7mOeag==:17 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=oiSwwY7edkvY4YQpmvYA:9 a=O8hF6Hzn-FEA:10 a=1HOtulTD9v-eNWfpl4qZ:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzIwMDA5OCBTYWx0ZWRfX3EAHKx3XQfr2 TzDXBhHA4AYH8EPY7KFbsz4th2Q/KzMSX2obe/ponW+d/3LSXxq6CGlUhJVEcJ98nYGQNDYx9ul HbfaGstRyUcziBS9ilfM9GOWXMhwcNQeONugGB7gETOkzsbBDpTojmEGKXRiehUQ9jiqji9jqNx 6x+7N8Oz32PoFdRRH6lL6urLmPgOdLPvLeWVE6o7eyRpzCfZZ7rT/C+5M5qZio0ggo3gqiF4M3t KwiMqv6dWbJp3OUv5whWLqCo8GKpEDhOBZW9RBF4gv44Z/rGUhj9f1NMVnSaQ5Ess2bOr1n1DJT RYseE/LEuCwfvxERshj9e3BfsfuYg0obfegDIvzNjN+g606H306OhmkWVbMH+2xtV9F0x7OI60W FiOLBCGb88A6RJj81HsGm9bTrg4TredY99PXuyVaVxPNwuIP5ZiXh9T3ZEIRoCXMqv98Xf+8j0n afF1TqjMeytoqMcSa/Q== X-Proofpoint-ORIG-GUID: KV4zTxrEG2FPhhN1nOhzhIB83148fNmV X-Proofpoint-Spam-Info: AW1haW4tMjYwNzIwMDA5OCBTYWx0ZWRfX23nhCdOeYudV J+d7SdyooIThSlSsqr4HlWIuytERHqCS/nxBhnkBd4SpUdr5nq+HF0bMPcPU7DcqiYINow5R3y/ 9XMbopAoQU0pH0DjmABeCnwTuc/C9xs= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-20_01,2026-07-17_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 suspectscore=0 bulkscore=0 clxscore=1015 impostorscore=0 phishscore=0 adultscore=0 malwarescore=0 priorityscore=1501 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607200098 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Add a UFS RPMB transport that moves fully-formed JEDEC RPMB frames to and from the RPMB Well-Known LUN using SCSI SECURITY PROTOCOL IN/OUT commands, exposed through ufs_rpmb_route_frames() for the OP-TEE RPMB supplicant and guarded by CONFIG_SUPPORT_UFS_RPMB. Signed-off-by: Jorge Ramirez-Ortiz --- drivers/ufs/Kconfig | 13 ++++ drivers/ufs/Makefile | 1 + drivers/ufs/ufs-rpmb.c | 146 +++++++++++++++++++++++++++++++++++++++ drivers/ufs/ufs-uclass.c | 6 ++ drivers/ufs/ufs.h | 13 ++++ include/ufs.h | 8 +++ 6 files changed, 187 insertions(+) create mode 100644 drivers/ufs/ufs-rpmb.c diff --git a/drivers/ufs/Kconfig b/drivers/ufs/Kconfig index 49472933de3..d39fcda42dc 100644 --- a/drivers/ufs/Kconfig +++ b/drivers/ufs/Kconfig @@ -92,4 +92,17 @@ config UFS_TI_J721E This selects the glue layer driver for Cadence controller present on TI's J721E devices. +config SUPPORT_UFS_RPMB + bool "Enable UFS RPMB (Replay Protected Memory Block) support" + depends on UFS && OPTEE && !SUPPORT_EMMC_RPMB + select BLAKE2 + help + Route OP-TEE RPMB requests to the UFS RPMB Well-Known LUN using + SCSI SECURITY PROTOCOL IN/OUT commands. Required for OP-TEE secure + storage (CFG_RPMB_FS) on UFS-based platforms that have no eMMC. + BLAKE2 is used to derive the fixed-length RPMB CID that matches the + Linux kernel UFS device_id ABI. The OP-TEE supplicant handles a + single RPMB transport, so this is mutually exclusive with the eMMC + RPMB supplicant (SUPPORT_EMMC_RPMB). + endmenu diff --git a/drivers/ufs/Makefile b/drivers/ufs/Makefile index e7f3c1d30c4..d60440ca119 100644 --- a/drivers/ufs/Makefile +++ b/drivers/ufs/Makefile @@ -13,3 +13,4 @@ obj-$(CONFIG_UFS_RENESAS) += ufs-renesas.o obj-$(CONFIG_UFS_RENESAS_GEN5) += ufs-renesas-rcar-gen5.o obj-$(CONFIG_UFS_ROCKCHIP) += ufs-rockchip.o obj-$(CONFIG_UFS_TI_J721E) += ti-j721e-ufs.o +obj-$(CONFIG_SUPPORT_UFS_RPMB) += ufs-rpmb.o diff --git a/drivers/ufs/ufs-rpmb.c b/drivers/ufs/ufs-rpmb.c new file mode 100644 index 00000000000..636ccb6e74f --- /dev/null +++ b/drivers/ufs/ufs-rpmb.c @@ -0,0 +1,146 @@ +// SPDX-License-Identifier: GPL-2.0+ +#include +#include +#include +#include +#include +#include +#include "ufs.h" + +#define RPMB_REQ_KEY 1 +#define RPMB_REQ_WCOUNTER 2 +#define RPMB_REQ_WRITE_DATA 3 +#define RPMB_REQ_READ_DATA 4 +#define RPMB_REQ_STATUS 5 + +#define RPMB_FRAME_REQ_OFFSET 510 + +static u16 rpmb_frame_request(const void *frame) +{ + const u8 *p = frame; + + return ((u16)p[RPMB_FRAME_REQ_OFFSET] << 8) | + p[RPMB_FRAME_REQ_OFFSET + 1]; +} + +static int ufs_rpmb_secprot(struct udevice *scsi_dev, unsigned int region, + u8 opcode, void *buf, unsigned int nframes, + enum dma_data_direction dir) +{ + struct scsi_cmd pccb; + u32 len = nframes * RPMB_FRAME_SIZE; + u16 spsp = (region << 8) | UFS_RPMB_SEC_PROTOCOL_ID; + + memset(&pccb, 0, sizeof(pccb)); + pccb.lun = UFS_UPIU_RPMB_WLUN; + pccb.cmd[0] = opcode; + pccb.cmd[1] = SEC_PROTOCOL_UFS; + pccb.cmd[2] = (spsp >> 8) & 0xff; + pccb.cmd[3] = spsp & 0xff; + pccb.cmd[4] = 0; + pccb.cmd[5] = 0; + pccb.cmd[6] = (len >> 24) & 0xff; + pccb.cmd[7] = (len >> 16) & 0xff; + pccb.cmd[8] = (len >> 8) & 0xff; + pccb.cmd[9] = len & 0xff; + pccb.cmd[10] = 0; + pccb.cmd[11] = 0; + pccb.cmdlen = 12; + pccb.pdata = buf; + pccb.datalen = len; + pccb.dma_dir = dir; + + return scsi_exec(scsi_dev, &pccb); +} + +static int ufs_rpmb_send(struct udevice *scsi_dev, unsigned int region, + void *frames, unsigned int nframes) +{ + return ufs_rpmb_secprot(scsi_dev, region, SECURITY_PROTOCOL_OUT, + frames, nframes, DMA_TO_DEVICE); +} + +static int ufs_rpmb_recv(struct udevice *scsi_dev, unsigned int region, + void *frames, unsigned int nframes) +{ + return ufs_rpmb_secprot(scsi_dev, region, SECURITY_PROTOCOL_IN, + frames, nframes, DMA_FROM_DEVICE); +} + +int ufs_rpmb_route_frames(struct udevice *scsi_dev, unsigned int region, + void *req, unsigned long reqlen, void *rsp, + unsigned long rsplen) +{ + unsigned int n_req = reqlen / RPMB_FRAME_SIZE; + unsigned int n_rsp = rsplen / RPMB_FRAME_SIZE; + u16 request; + int ret; + + if (!scsi_dev || reqlen % RPMB_FRAME_SIZE || + rsplen % RPMB_FRAME_SIZE || !n_req) + return -EINVAL; + + request = rpmb_frame_request(req); + + switch (request) { + case RPMB_REQ_KEY: + case RPMB_REQ_WRITE_DATA: { + u8 status_frame[RPMB_FRAME_SIZE]; + + ret = ufs_rpmb_send(scsi_dev, region, req, n_req); + if (ret) + return ret; + + memset(status_frame, 0, sizeof(status_frame)); + status_frame[RPMB_FRAME_REQ_OFFSET] = RPMB_REQ_STATUS >> 8; + status_frame[RPMB_FRAME_REQ_OFFSET + 1] = RPMB_REQ_STATUS & 0xff; + ret = ufs_rpmb_send(scsi_dev, region, status_frame, 1); + if (ret) + return ret; + + if (n_rsp < 1) + return -EINVAL; + return ufs_rpmb_recv(scsi_dev, region, rsp, 1); + } + case RPMB_REQ_WCOUNTER: + case RPMB_REQ_READ_DATA: + ret = ufs_rpmb_send(scsi_dev, region, req, 1); + if (ret) + return ret; + if (n_rsp < 1) + return -EINVAL; + return ufs_rpmb_recv(scsi_dev, region, rsp, n_rsp); + default: + debug("ufs-rpmb: unsupported request 0x%x\n", request); + return -EINVAL; + } +} + +struct udevice *ufs_rpmb_get_scsi_dev(int dev_id) +{ + struct udevice *scsi_dev; + int ret; + + ret = uclass_get_device(UCLASS_SCSI, dev_id, &scsi_dev); + if (ret) { + debug("ufs-rpmb: no SCSI device for dev_id %d: %d\n", + dev_id, ret); + return NULL; + } + return scsi_dev; +} + +int ufs_rpmb_read_geometry(struct udevice *scsi_dev, u8 *rpmb_rw_size) +{ + struct ufs_hba *hba = dev_get_uclass_priv(scsi_dev->parent); + u8 desc[QUERY_DESC_GEOMETRY_DEF_SIZE]; + int ret; + + ret = ufshcd_read_descriptor(hba, QUERY_DESC_IDN_GEOMETRY, 0, + desc, sizeof(desc)); + if (ret) + return ret; + + *rpmb_rw_size = desc[GEOMETRY_DESC_RPMB_RW_SIZE]; + return 0; +} diff --git a/drivers/ufs/ufs-uclass.c b/drivers/ufs/ufs-uclass.c index 4d10e0b11fe..962b6093762 100644 --- a/drivers/ufs/ufs-uclass.c +++ b/drivers/ufs/ufs-uclass.c @@ -1712,6 +1712,12 @@ static inline int ufshcd_read_desc(struct ufs_hba *hba, enum desc_idn desc_id, return ufshcd_read_desc_param(hba, desc_id, desc_index, 0, buf, size); } +int ufshcd_read_descriptor(struct ufs_hba *hba, enum desc_idn desc_id, + int desc_index, u8 *buf, u8 size) +{ + return ufshcd_read_desc_param(hba, desc_id, desc_index, 0, buf, size); +} + static int ufshcd_read_device_desc(struct ufs_hba *hba, u8 *buf, u32 size) { return ufshcd_read_desc(hba, QUERY_DESC_IDN_DEVICE, 0, buf, size); diff --git a/drivers/ufs/ufs.h b/drivers/ufs/ufs.h index 0f6c93fbce7..e66d2c5f533 100644 --- a/drivers/ufs/ufs.h +++ b/drivers/ufs/ufs.h @@ -10,6 +10,16 @@ struct udevice; #define UFS_CDB_SIZE 16 + +#define UFS_UPIU_RPMB_WLUN 0xC4 +#define RPMB_FRAME_SIZE 512 + +#define SECURITY_PROTOCOL_IN 0xA2 +#define SECURITY_PROTOCOL_OUT 0xB5 +#define SEC_PROTOCOL_UFS 0xEC +#define UFS_RPMB_SEC_PROTOCOL_ID 0x01 + +#define GEOMETRY_DESC_RPMB_RW_SIZE 0x17 #define UPIU_TRANSACTION_UIC_CMD 0x1F #define UIC_CMD_SIZE (sizeof(u32) * 4) #define RESPONSE_UPIU_SENSE_DATA_LENGTH 18 @@ -809,4 +819,7 @@ static inline void ufshcd_rmwl(struct ufs_hba *hba, u32 mask, u32 val, u32 reg) int ufshcd_probe(struct udevice *dev, struct ufs_hba_ops *hba_ops); +int ufshcd_read_descriptor(struct ufs_hba *hba, enum desc_idn desc_id, + int desc_index, u8 *buf, u8 size); + #endif diff --git a/include/ufs.h b/include/ufs.h index f6e27d90e43..90c6aebcec1 100644 --- a/include/ufs.h +++ b/include/ufs.h @@ -20,4 +20,12 @@ int ufs_probe(void); */ int ufs_probe_dev(int index); +struct udevice *ufs_rpmb_get_scsi_dev(int dev_id); + +int ufs_rpmb_route_frames(struct udevice *scsi_dev, unsigned int region, + void *req, unsigned long reqlen, void *rsp, + unsigned long rsplen); + +int ufs_rpmb_read_geometry(struct udevice *scsi_dev, u8 *rpmb_rw_size); + #endif -- 2.54.0