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[106.168.128.197]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2b5fab288aesm4505305ad.65.2026.04.16.21.10.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Apr 2026 21:10:09 -0700 (PDT) From: Takahiro Kuwano X-Google-Original-From: Takahiro Kuwano Date: Fri, 17 Apr 2026 13:09:36 +0900 Subject: [PATCH 1/2] mtd: spi-nor: spansion: use die erase for multi-die devices only Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260417-die-erase-fix-v1-1-4f93ca586c2e@infineon.com> References: <20260417-die-erase-fix-v1-0-4f93ca586c2e@infineon.com> In-Reply-To: <20260417-die-erase-fix-v1-0-4f93ca586c2e@infineon.com> To: Tudor Ambarus , Pratyush Yadav , Michael Walle , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, Takahiro Kuwano , stable@kernel.org X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1776399001; l=1018; i=takahiro.kuwano@infineon.com; s=20250227; h=from:subject:message-id; bh=8yx//9tvT7Tt3lxpUbTiukCjbjkctB90zoxhmldjicY=; b=5dnrdAWkHf9ZVcIPTnpG2276KtB2HqVyGFpWPqT5ioqr4rwVsv779asH6LvBceORTBB57Xaej 8t8Zc36CsYbATFvMCTwk3QBfXovIARc56656dPvqbFaxQethFrKGprc X-Developer-Key: i=takahiro.kuwano@infineon.com; a=ed25519; pk=aS8V9WLuMUkl0vmgD0xJU19ZajdJmuyFBnBfVj0dfDs= Die erase opcode is supported in multi-die devices only. For single die devices, default chip erase opcode must be used. In s25hx_t_late_init(), die erase opcode is set only when the device is multi-die. Fixes: 461d0babb544 ("mtd: spi-nor: spansion: enable die erase for multi di= e flashes") Cc: stable@kernel.org Signed-off-by: Takahiro Kuwano --- drivers/mtd/spi-nor/spansion.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c index 8498c7003d88..b6023076903a 100644 --- a/drivers/mtd/spi-nor/spansion.c +++ b/drivers/mtd/spi-nor/spansion.c @@ -674,7 +674,9 @@ static int s25hx_t_late_init(struct spi_nor *nor) params->ready =3D cypress_nor_sr_ready_and_clear; cypress_nor_ecc_init(nor); =20 - params->die_erase_opcode =3D SPINOR_OP_CYPRESS_DIE_ERASE; + if (params->n_dice > 1) + params->die_erase_opcode =3D SPINOR_OP_CYPRESS_DIE_ERASE; + return 0; } =20 --=20 2.43.0 From nobody Tue Jun 16 07:09:12 2026 Received: from mail-pl1-f177.google.com (mail-pl1-f177.google.com [209.85.214.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0229835AC1E for ; 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[106.168.128.197]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2b5fab288aesm4505305ad.65.2026.04.16.21.10.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Apr 2026 21:10:13 -0700 (PDT) From: Takahiro Kuwano X-Google-Original-From: Takahiro Kuwano Date: Fri, 17 Apr 2026 13:09:37 +0900 Subject: [PATCH 2/2] mtd: spi-nor: spansion: add die erase support in s28hx-t Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260417-die-erase-fix-v1-2-4f93ca586c2e@infineon.com> References: <20260417-die-erase-fix-v1-0-4f93ca586c2e@infineon.com> In-Reply-To: <20260417-die-erase-fix-v1-0-4f93ca586c2e@infineon.com> To: Tudor Ambarus , Pratyush Yadav , Michael Walle , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, Takahiro Kuwano X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1776399001; l=746; i=takahiro.kuwano@infineon.com; s=20250227; h=from:subject:message-id; bh=fJ3XJdKAMzgKAP1CSAH85n0sw5JeoeSHoGHGEGt2Q7M=; b=MFJk9ZMZAFnFHqjwyQjElB8xBT45ADbfVlcvqIDfrc1NnByKCZXvr9Yk4g2LrylM2PSMv3kLP tfgYoHx8jQfDCItm1L62Z1cP3Q/BNLsEkT75TxxQf8ky/jI6fTrhGvu X-Developer-Key: i=takahiro.kuwano@infineon.com; a=ed25519; pk=aS8V9WLuMUkl0vmgD0xJU19ZajdJmuyFBnBfVj0dfDs= S28Hx-T family has multi-die devices that support die erase opcode. Update die erase opcode when the device is multi-die. Signed-off-by: Takahiro Kuwano --- drivers/mtd/spi-nor/spansion.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c index b6023076903a..65227d989de1 100644 --- a/drivers/mtd/spi-nor/spansion.c +++ b/drivers/mtd/spi-nor/spansion.c @@ -762,6 +762,9 @@ static int s28hx_t_late_init(struct spi_nor *nor) params->ready =3D cypress_nor_sr_ready_and_clear; cypress_nor_ecc_init(nor); =20 + if (params->n_dice > 1) + params->die_erase_opcode =3D SPINOR_OP_CYPRESS_DIE_ERASE; + return 0; } =20 --=20 2.43.0