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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1720525969; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=tdPFQXQSQZMNxFPBm94K3NbKgNhWOYAIwcO0ydpIx28=; b=eoXc0aF+sL+SHq8VL36Trr/PhKsWMbZx/d/BNzPsVDh3r5T5QFOM1/G0A6KpTjz+TyOBI+ i3MGWuCGrqNUzMx0KvCQN6T25s9eRGaA3sgVPSFj4Levwj9/1W9UwQSFrU5QhQ9MDHvi+0 gt3PtdiHUZTrE0q2LfWndAFuzMPPnN8= X-MC-Unique: T8zMhkbAPKG9bA1BafX6AQ-1 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Cc: Jamin Lin , Troy Lee , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PULL 6/8] hw/block: m25p80: support quad mode for w25q01jvq Date: Tue, 9 Jul 2024 13:52:26 +0200 Message-ID: <20240709115228.798904-7-clg@redhat.com> In-Reply-To: <20240709115228.798904-1-clg@redhat.com> References: <20240709115228.798904-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 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=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.144, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: 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 @redhat.com) X-ZM-MESSAGEID: 1720526095666116600 From: Jamin Lin According to the w25q01jv datasheet at page 16, it is required to set QE bit in "Status Register 2". Besides, users are able to utilize "Write Status Register 1(0x01)" command to set QE bit in "Status Register 2" and utilize "Read Status Register 2(0x35)" command to get the QE bit status. To support quad mode for w25q01jvq, update collecting data needed 2 bytes for WRSR command in decode_new_cmd function and verify QE bit at the second byte of collecting data bit 2 in complete_collecting_data. Update RDCR_EQIO command to set bit 2 of return data if quad mode enable in decode_new_cmd. Signed-off-by: Troy Lee Signed-off-by: Jamin Lin Reviewed-by: C=C3=A9dric Le Goater --- hw/block/m25p80.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c index 8dec134832a1..9e99107b42e2 100644 --- a/hw/block/m25p80.c +++ b/hw/block/m25p80.c @@ -416,6 +416,7 @@ typedef enum { /* * Micron: 0x35 - enable QPI * Spansion: 0x35 - read control register + * Winbond: 0x35 - quad enable */ RDCR_EQIO =3D 0x35, RSTQIO =3D 0xf5, @@ -798,6 +799,11 @@ static void complete_collecting_data(Flash *s) s->four_bytes_address_mode =3D extract32(s->data[1], 5, 1); } break; + case MAN_WINBOND: + if (s->len > 1) { + s->quad_enable =3D !!(s->data[1] & 0x02); + } + break; default: break; } @@ -1254,6 +1260,10 @@ static void decode_new_cmd(Flash *s, uint32_t value) s->needed_bytes =3D 2; s->state =3D STATE_COLLECTING_VAR_LEN_DATA; break; + case MAN_WINBOND: + s->needed_bytes =3D 2; + s->state =3D STATE_COLLECTING_VAR_LEN_DATA; + break; default: s->needed_bytes =3D 1; s->state =3D STATE_COLLECTING_DATA; @@ -1431,6 +1441,12 @@ static void decode_new_cmd(Flash *s, uint32_t value) case MAN_MACRONIX: s->quad_enable =3D true; break; + case MAN_WINBOND: + s->data[0] =3D (!!s->quad_enable) << 1; + s->pos =3D 0; + s->len =3D 1; + s->state =3D STATE_READING_DATA; + break; default: break; } --=20 2.45.2