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Wed, 12 Feb 2020 19:38:25 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id A81DB100089; Wed, 12 Feb 2020 19:37:51 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag6node3.st.com [10.75.127.18]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id A08002C60AA; Wed, 12 Feb 2020 19:37:51 +0100 (CET) Received: from localhost (10.75.127.47) by SFHDAG6NODE3.st.com (10.75.127.18) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 12 Feb 2020 19:37:50 +0100 From: Patrick Delaunay To: CC: Patrick Delaunay , U-Boot STM32 Subject: [PATCH 05/10] board: stm32mp1: stboard: lock the OTP after programming Date: Wed, 12 Feb 2020 19:37:39 +0100 Message-ID: <20200212183744.5309-6-patrick.delaunay@st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200212183744.5309-1-patrick.delaunay@st.com> References: <20200212183744.5309-1-patrick.delaunay@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.47] X-ClientProxiedBy: SFHDAG5NODE1.st.com (10.75.127.13) To SFHDAG6NODE3.st.com (10.75.127.18) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-02-12_08:2020-02-12, 2020-02-12 signatures=0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.30rc1 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 0.102.1 at phobos.denx.de X-Virus-Status: Clean Lock the OTP used for board identification for the ST boards after programming. Signed-off-by: Patrick Delaunay Acked-by: Patrice Chotard --- board/st/common/cmd_stboard.c | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/board/st/common/cmd_stboard.c b/board/st/common/cmd_stboard.c index c7ca773b1c..1573e35410 100644 --- a/board/st/common/cmd_stboard.c +++ b/board/st/common/cmd_stboard.c @@ -42,7 +42,7 @@ static int do_stboard(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { int ret; - u32 otp; + u32 otp, lock; u8 revision; unsigned long board, variant, bom; struct udevice *dev; @@ -66,11 +66,20 @@ static int do_stboard(cmd_tbl_t *cmdtp, int flag, int argc, return CMD_RET_FAILURE; } + ret = misc_read(dev, STM32_BSEC_LOCK(BSEC_OTP_BOARD), + &lock, sizeof(lock)); + if (ret < 0) { + puts("LOCK read error"); + return CMD_RET_FAILURE; + } + if (argc == 0) { if (!otp) puts("Board : OTP board FREE\n"); else display_stboard(otp); + printf(" OTP %d %s locked !\n", BSEC_OTP_BOARD, + lock == 1 ? "" : "NOT"); return CMD_RET_SUCCESS; } @@ -129,6 +138,16 @@ static int do_stboard(cmd_tbl_t *cmdtp, int flag, int argc, puts("BOARD programming error\n"); return CMD_RET_FAILURE; } + + /* write persistent lock */ + otp = 1; + ret = misc_write(dev, STM32_BSEC_LOCK(BSEC_OTP_BOARD), + &otp, sizeof(otp)); + if (ret < 0) { + puts("BOARD lock error\n"); + return CMD_RET_FAILURE; + } + puts("BOARD programming done\n"); return CMD_RET_SUCCESS;