From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 16 Jun 2021 09:41:34 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1ltQB4-00010P-6f for lore@lore.pengutronix.de; Wed, 16 Jun 2021 09:41:34 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ltQB3-00008Y-Ch for lore@pengutronix.de; Wed, 16 Jun 2021 09:41:34 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=IQcLhYkEslgro5fz864g418ixJ7+8hki3Q6GszMbDz4=; b=YVtxRAOuyIoOPG W5RUe0qLgLdFel4uUiChSXGtzK4ovjveR8mNCNxJqAuBFtYK2lfVYgpCW9VnYzXOuOYrSDk49oq3F ST7DHRlQS0VwyTLAp4HvfMNgJmVtSaVaetk/UB20YJ+1oHi3zcpNgL94a6NM9/o+rSjRbfVz6aRG9 y4PrSQrwwV16xveg3USBezi/fUDmKzwrz5ObSAREVFhtPHUzI5nWaPFEkC5Lc3An+BIk0o776HS04 SPjHMhz7Ec7/ITHzwcZyjJSE+uXquPp2NXN8hsP4DEcKLIJ3Z4ubwQxlQt+y6AD4gVVmx+G/eELto MOBt5BbkVsR3wgPNop2A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ltQ9f-005EOm-9P; Wed, 16 Jun 2021 07:40:07 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ltQ9a-005EMi-0t for barebox@lists.infradead.org; Wed, 16 Jun 2021 07:40:03 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ltQ9W-0007zD-EV; Wed, 16 Jun 2021 09:39:58 +0200 Received: from [2a0a:edc0:0:1101:1d::39] (helo=dude03.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1ltQ9V-0001qI-St; Wed, 16 Jun 2021 09:39:57 +0200 Received: from mtr by dude03.red.stw.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1ltQ9V-007rG3-SB; Wed, 16 Jun 2021 09:39:57 +0200 From: Michael Tretter To: barebox@lists.infradead.org Cc: Michael Graichen Date: Wed, 16 Jun 2021 09:39:56 +0200 Message-Id: <20210616073957.1872965-5-m.tretter@pengutronix.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210616073957.1872965-1-m.tretter@pengutronix.de> References: <20210616073957.1872965-1-m.tretter@pengutronix.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210616_004002_107123_91F8530A X-CRM114-Status: GOOD ( 11.27 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:e::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.0 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 4/5] mci: arasan: wait for XFER_COMPLETE for busy response X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) I observed errors on the ZynqMP during reading the EXT_CSD registers using CMD8. The Zynq UltraScale+ Device TRM UG1085 (v2.2) p. 777 states that the driver shall wait 2 ms after sending CMD6 for setting a EXT_CSD register. The JEDEC Standard No. 84-A43 p. 35 does not specify the delay but states that CMD6 expects an R1b response and that the host has to wait until the busy signal is de-asserted. This is signaled via the SDHCI_INT_XFER_COMPLETE interrupt. Wait for the XFER_COMPLETE interrupt after sending a command that expects an R1b response. Signed-off-by: Michael Tretter --- drivers/mci/arasan-sdhci.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mci/arasan-sdhci.c b/drivers/mci/arasan-sdhci.c index 732f838d8395..d45f9184cd1d 100644 --- a/drivers/mci/arasan-sdhci.c +++ b/drivers/mci/arasan-sdhci.c @@ -193,6 +193,8 @@ static int arasan_sdhci_send_cmd(struct mci_host *mci, struct mci_cmd *cmd, mask = SDHCI_INT_CMD_COMPLETE; if (data && data->flags == MMC_DATA_READ) mask |= SDHCI_INT_DATA_AVAIL; + if (cmd->resp_type & MMC_RSP_BUSY) + mask |= SDHCI_INT_XFER_COMPLETE; sdhci_set_cmd_xfer_mode(&host->sdhci, cmd, data, false, &command, &xfer); -- 2.29.2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox