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Tue, 03 Nov 2020 14:05:06 -0800 (PST) From: Fabio Estevam To: shawnguo@kernel.org Subject: [PATCH] ARM: imx: imx7ulp: Add a comment explaining the B2 silicon version Date: Tue, 3 Nov 2020 19:04:54 -0300 Message-Id: <20201103220454.11703-1-festevam@gmail.com> X-Mailer: git-send-email 2.17.1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201103_170511_269015_8434EBF8 X-CRM114-Status: GOOD ( 13.29 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider [festevam[at]gmail.com] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:f41 listed in] [list.dnswl.org] X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Fabio Estevam , linux-arm-kernel@lists.infradead.org, Anson.Huang@nxp.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org To help the users to understand the meaning of bits 31-28 of the JTAG_ID_REG register, add a comment explaining the value that is expected from a i.MX7ULP rev B2. Signed-off-by: Fabio Estevam --- arch/arm/mach-imx/mach-imx7ulp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-imx/mach-imx7ulp.c b/arch/arm/mach-imx/mach-imx7ulp.c index f6032ea7de8b..a3c8dadec1c5 100644 --- a/arch/arm/mach-imx/mach-imx7ulp.c +++ b/arch/arm/mach-imx/mach-imx7ulp.c @@ -37,6 +37,7 @@ static void __init imx7ulp_set_revision(void) * bit[31:28] of JTAG_ID register defines revision as below from B0: * 0001 B0 * 0010 B1 + * 0011 B2 */ switch (revision >> 28) { case 1: