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Iglesias" , Alistair Francis , Peter Maydell , Jason Wang , qemu-arm@nongnu.org (open list:Xilinx Zynq), Jay Chang , Frank Chang Subject: [PATCH] hw/net/xilinx_axienet: Fix PHY register 17 link status reporting Date: Mon, 13 Jul 2026 14:46:17 +0800 Message-ID: <20260713064617.85374-1-jay.chang@sifive.com> X-Mailer: git-send-email 2.48.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists1p.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::1033; envelope-from=jay.chang@sifive.com; helo=mail-pj1-x1033.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @sifive.com) X-ZM-MESSAGEID: 1783925205534158500 Content-Type: text/plain; charset="utf-8" The Marvell 88E1111 PHY register 17 (PHY Specific Status Register) bit 10 reports real-time link status. Previously, this register returned a fixed value of 0x8800 with bit 10 always cleared, causing U-Boot to always detect "No link" even when the link was up. Signed-off-by: Jay Chang Reviewed-by: Frank Chang --- hw/net/xilinx_axienet.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/net/xilinx_axienet.c b/hw/net/xilinx_axienet.c index 970732b162..9f5f65ecfa 100644 --- a/hw/net/xilinx_axienet.c +++ b/hw/net/xilinx_axienet.c @@ -103,6 +103,9 @@ static unsigned int tdk_read(struct PHY *phy, unsigned = int req) case 17: /* Marvell PHY on many xilinx boards. */ r =3D 0x8000; /* 1000Mb */ + if (phy->link) { + r |=3D 0x0400; /* Link is up */ + } break; case 18: { --=20 2.48.1