From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Thu, 13 Jun 2024 15:10:31 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1sHkDn-005Nis-0G for lore@lore.pengutronix.de; Thu, 13 Jun 2024 15:10:31 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1sHkDm-00061p-8p for lore@pengutronix.de; Thu, 13 Jun 2024 15:10:30 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:To:From:Reply-To:Cc:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=/+k0Twt5pTccsZ6kw2W0xCsYAZCwxulXrsqSZSXZNtU=; b=IPDbTfg7Al2dsevLZfBc/1daB4 WmRHj1oSDxajo46/wvGAdwtV6bdYbeJaPZyfVrqBbb9ismhTeCWIN300aw/8b7zOr9VMRn4u9kWHY yeNlsiYiQ9D40oTaVPplKNJISgXn3BExgf+khHfxg7RBOybDYcly7uv9IPxmqhxI2i9J+cCNDHtVZ uAptqychFDP+ZQNDQDdgs4A8C16k0ZsxmFlKvTkRlGAAusmHAGs1dAFZvUPzzl2WnKmtywuIRikdk jzsWGl7vjYMewXu0UQlL7BLO2dF40eNTtQJs6/mcNwAiSVpO9LFg5d8MY0XKnjCMnLvuDgnRNL4Qf Cjp21NLA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sHkDI-0000000GdVN-3oC3; Thu, 13 Jun 2024 13:10:00 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sHkD9-0000000GdNf-2BtO for barebox@lists.infradead.org; Thu, 13 Jun 2024 13:09:54 +0000 Received: from dude02.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::28]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1sHkD8-0005fE-BE for barebox@lists.infradead.org; Thu, 13 Jun 2024 15:09:50 +0200 From: Marco Felsch To: barebox@lists.infradead.org Date: Thu, 13 Jun 2024 15:09:36 +0200 Message-Id: <20240613130944.264396-1-m.felsch@pengutronix.de> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240613_060951_645035_AFE24E4F X-CRM114-Status: GOOD ( 12.16 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.1 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 1/9] i.MX: HABv4: fix SRK_LOCK for i.MX8M devices X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) All current known i.MX8M devices: i.MX8MQ, i.MX8MP, i.MX8MN, i.MX8MM use an other fuse to lock the SRK hash. Fix this by refactoring imx_hab_write_srk_hash_ocotp() and make the lock fusing device specific. Fixes: 6c4d5bb5acfe ("i.MX: HABv4: implement interface for i.MX8MQ") Signed-off-by: Marco Felsch --- drivers/hab/hab.c | 34 +++++++++++++++++++++++++++++--- include/mach/imx/ocotp-fusemap.h | 1 + 2 files changed, 32 insertions(+), 3 deletions(-) diff --git a/drivers/hab/hab.c b/drivers/hab/hab.c index ed091058d8fb..28a091841a69 100644 --- a/drivers/hab/hab.c +++ b/drivers/hab/hab.c @@ -128,7 +128,7 @@ static int imx_hab_read_srk_hash_ocotp(u8 *__srk) return 0; } -static int imx_hab_write_srk_hash_ocotp(const u8 *__newsrk, unsigned flags) +static int imx_hab_write_srk_hash_ocotp(const u8 *__newsrk) { u32 *newsrk = (u32 *)__newsrk; int ret, i; @@ -139,6 +139,17 @@ static int imx_hab_write_srk_hash_ocotp(const u8 *__newsrk, unsigned flags) return ret; } + return 0; +} + +static int imx6_hab_write_srk_hash_ocotp(const u8 *newsrk, unsigned flags) +{ + int ret; + + ret = imx_hab_write_srk_hash_ocotp(newsrk); + if (ret) + return ret; + if (flags & IMX_SRK_HASH_WRITE_LOCK) { ret = imx_ocotp_write_field(OCOTP_SRK_LOCK, 1); if (ret < 0) @@ -148,6 +159,23 @@ static int imx_hab_write_srk_hash_ocotp(const u8 *__newsrk, unsigned flags) return 0; } +static int imx8m_hab_write_srk_hash_ocotp(const u8 *newsrk, unsigned flags) +{ + int ret; + + ret = imx_hab_write_srk_hash_ocotp(newsrk); + if (ret) + return ret; + + if (flags & IMX_SRK_HASH_WRITE_LOCK) { + ret = imx_ocotp_write_field(MX8M_OCOTP_SRK_LOCK, 1); + if (ret < 0) + return ret; + } + + return 0; +} + static int imx_hab_permanent_write_enable_ocotp(int enable) { return imx_ocotp_permanent_write(enable); @@ -222,7 +250,7 @@ static struct imx_hab_ops imx_hab_ops_iim = { }; static struct imx_hab_ops imx6_hab_ops_ocotp = { - .write_srk_hash = imx_hab_write_srk_hash_ocotp, + .write_srk_hash = imx6_hab_write_srk_hash_ocotp, .read_srk_hash = imx_hab_read_srk_hash_ocotp, .lockdown_device = imx6_hab_lockdown_device_ocotp, .device_locked_down = imx6_hab_device_locked_down_ocotp, @@ -231,7 +259,7 @@ static struct imx_hab_ops imx6_hab_ops_ocotp = { }; static struct imx_hab_ops imx8m_hab_ops_ocotp = { - .write_srk_hash = imx_hab_write_srk_hash_ocotp, + .write_srk_hash = imx8m_hab_write_srk_hash_ocotp, .read_srk_hash = imx_hab_read_srk_hash_ocotp, .lockdown_device = imx8m_hab_lockdown_device_ocotp, .device_locked_down = imx8m_hab_device_locked_down_ocotp, diff --git a/include/mach/imx/ocotp-fusemap.h b/include/mach/imx/ocotp-fusemap.h index 823273895502..c4f94e61e8f8 100644 --- a/include/mach/imx/ocotp-fusemap.h +++ b/include/mach/imx/ocotp-fusemap.h @@ -54,6 +54,7 @@ #define OCOTP_GP2 (OCOTP_WORD(0x670) | OCOTP_BIT(0) | OCOTP_WIDTH(32)) #define OCOTP_PAD_SETTINGS (OCOTP_WORD(0x6d0) | OCOTP_BIT(0) | OCOTP_WIDTH(6)) /* i.MX8M moved the security related fuses */ +#define MX8M_OCOTP_SRK_LOCK (OCOTP_WORD(0x400) | OCOTP_BIT(9) | OCOTP_WIDTH(1)) #define MX8M_OCOTP_SEC_CONFIG_1 (OCOTP_WORD(0x470) | OCOTP_BIT(25) | OCOTP_WIDTH(1)) #define MX8MQ_OCOTP_DIR_BT_DIS (OCOTP_WORD(0x470) | OCOTP_BIT(27) | OCOTP_WIDTH(1)) -- 2.39.2