From patchwork Wed Jul 3 08:16:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jamin Lin X-Patchwork-Id: 13721511 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 47960C31D97 for ; Wed, 3 Jul 2024 08:18:30 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sOvAm-0003JQ-FZ; Wed, 03 Jul 2024 04:17:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sOvAk-0003Iy-Mr; Wed, 03 Jul 2024 04:17:02 -0400 Received: from mail.aspeedtech.com ([211.20.114.72] helo=TWMBX01.aspeed.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sOvAi-00014r-5c; Wed, 03 Jul 2024 04:17:01 -0400 Received: from TWMBX01.aspeed.com (192.168.0.62) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.12; Wed, 3 Jul 2024 16:16:26 +0800 Received: from localhost.localdomain (192.168.10.10) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server id 15.2.1258.12 via Frontend Transport; Wed, 3 Jul 2024 16:16:26 +0800 To: =?utf-8?q?C=C3=A9dric_Le_Goater?= , Peter Maydell , Steven Lee , Troy Lee , Andrew Jeffery , "Joel Stanley" , Alistair Francis , "Kevin Wolf" , Hanna Reitz , Jason Wang , Cleber Rosa , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Wainer dos Santos Moschetta" , Beraldo Leal , "open list:ASPEED BMCs" , "open list:All patches CC here" , "open list:Block layer core" CC: , , Subject: [PATCH v2 4/5] hw/block: m25p80: support quad mode for w25q01jvq Date: Wed, 3 Jul 2024 16:16:22 +0800 Message-ID: <20240703081623.2740862-5-jamin_lin@aspeedtech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240703081623.2740862-1-jamin_lin@aspeedtech.com> References: <20240703081623.2740862-1-jamin_lin@aspeedtech.com> MIME-Version: 1.0 Received-SPF: pass client-ip=211.20.114.72; envelope-from=jamin_lin@aspeedtech.com; helo=TWMBX01.aspeed.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_FAIL=0.001, SPF_PASS=-0.001 autolearn=ham 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: , Reply-to: Jamin Lin X-Patchwork-Original-From: Jamin Lin via From: Jamin Lin Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org 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: Cédric 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 8dec134832..9e99107b42 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 = 0x35, RSTQIO = 0xf5, @@ -798,6 +799,11 @@ static void complete_collecting_data(Flash *s) s->four_bytes_address_mode = extract32(s->data[1], 5, 1); } break; + case MAN_WINBOND: + if (s->len > 1) { + s->quad_enable = !!(s->data[1] & 0x02); + } + break; default: break; } @@ -1254,6 +1260,10 @@ static void decode_new_cmd(Flash *s, uint32_t value) s->needed_bytes = 2; s->state = STATE_COLLECTING_VAR_LEN_DATA; break; + case MAN_WINBOND: + s->needed_bytes = 2; + s->state = STATE_COLLECTING_VAR_LEN_DATA; + break; default: s->needed_bytes = 1; s->state = STATE_COLLECTING_DATA; @@ -1431,6 +1441,12 @@ static void decode_new_cmd(Flash *s, uint32_t value) case MAN_MACRONIX: s->quad_enable = true; break; + case MAN_WINBOND: + s->data[0] = (!!s->quad_enable) << 1; + s->pos = 0; + s->len = 1; + s->state = STATE_READING_DATA; + break; default: break; }