From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jorge Ramirez-Ortiz Date: Fri, 15 Nov 2019 22:37:35 +0100 Subject: [U-Boot] [PATCH] drivers: optee: rpmb: fix returning CID to TEE Message-ID: <20191115213735.25711-1-jorge@foundries.io> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de The MMC CID value is one of the input parameters to unequivocally provision the the RPMB key. Before this patch, the value returned by the mmc driver in the Linux kernel differs from the one returned by uboot to optee. This means that if Linux provisions the RPMB key, uboot wont be able to access it (and the other way around). Fix it so both uboot and linux can access the RPMB partition independently of who provisions the key. Signed-off-by: Jorge Ramirez-Ortiz --- drivers/tee/optee/rpmb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/tee/optee/rpmb.c b/drivers/tee/optee/rpmb.c index 955155b3f8..5dbb1eae4a 100644 --- a/drivers/tee/optee/rpmb.c +++ b/drivers/tee/optee/rpmb.c @@ -98,6 +98,7 @@ static struct mmc *get_mmc(struct optee_private *priv, int dev_id) static u32 rpmb_get_dev_info(u16 dev_id, struct rpmb_dev_info *info) { struct mmc *mmc = find_mmc_device(dev_id); + int i; if (!mmc) return TEE_ERROR_ITEM_NOT_FOUND; @@ -105,7 +106,9 @@ static u32 rpmb_get_dev_info(u16 dev_id, struct rpmb_dev_info *info) if (!mmc->ext_csd) return TEE_ERROR_GENERIC; - memcpy(info->cid, mmc->cid, sizeof(info->cid)); + for (i = 0; i < ARRAY_SIZE(mmc->cid); i++) + ((u32 *) info->cid)[i] = be32_to_cpu(mmc->cid[i]); + info->rel_wr_sec_c = mmc->ext_csd[222]; info->rpmb_size_mult = mmc->ext_csd[168]; info->ret_code = RPMB_CMD_GET_DEV_INFO_RET_OK; -- 2.23.0