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[212.116.72.195]) by smtp.gmail.com with ESMTPSA id q16-v6sm283451ljj.68.2018.08.17.05.06.53 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 17 Aug 2018 05:06:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rt-labs-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id; bh=Izq2mdrzh/1EFxKmE7OHVz/7844JiH+gH4SQwALvfrY=; b=OMgpd22wYaVryMjyJnylj9av2IM5qcAeakrHhkUy1PeuWr03h6JpMnAnWmonKxQaB7 9Wio6dXXlJBIiDIm8cNE+9R4/afEyL+1sbQ9HPkQ9qRY02vVS1pvgekBNY8+3UCZ387d KSjSi+WDZ4J3RAzGjAt/ec3z4aCFXPJGixVvY+91OMahpmatSGDN7DJeHk3DtiLL1K7M MNMKmyQyO56mvpNiVtyyMYOfMS51kAGfRzFj4K7feLS7DTPVDS4D21bnRuzxyBToiXb+ WSeNRWgELUv/6n96a5yE11qp5s/zRGTh7qYNDlviY8Gok644qSESqh4G5ztKdhqLO2qx AtxA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=Izq2mdrzh/1EFxKmE7OHVz/7844JiH+gH4SQwALvfrY=; b=H6l85QLTlssDa6b6T0igz1JkI8WTwMVfWsQ/XcL/WPBHMBFFeedC6lVgCZ38VDkOSK gaNouI1Ol5VLpNp4hU76Pk2/OAFppT4reDBKREf8A7d0n9WJwJD6+7IliWRjGWO+8j4q Kj2QCMxmb1Xhe+VEo7++ZJHQMrZLefCuGEtkUgXLSQTE4oU1eM4nOd4QcZ0m53SAg9pq W9RI5wck7ffSAv8rh4Hv3ebuZIDGVXC6vDw4P7BDqfS5BfHGVfun37QsxAXZk1IJaPCt 10l7ARgi7aheEXQr2n6tzrRFgajctnq3ZR1YnvdCz3WwG0e6d6mFFZvNG+8VjZ7t13Iz thOA== X-Gm-Message-State: AOUpUlEU3pfbmtfCsVe4tto5RSYv2nVv9mVnK6vW3viWRgNJPO9Tuj4W gKFUEovJkPg/EvlvVFB6vl+HXw== X-Google-Smtp-Source: AA+uWPxad1QQ8QFevzXoMflyOvUkaRf91DXQSuxcMUdHwhN07PyBwCGUHj8T/kunI2PvsXi21SqTVg== X-Received: by 2002:a19:115b:: with SMTP id g88-v6mr1589576lfi.57.1534507614706; Fri, 17 Aug 2018 05:06:54 -0700 (PDT) From: Hans-Erik Floryd To: qemu-trivial@nongnu.org Date: Fri, 17 Aug 2018 14:03:52 +0200 Message-Id: <1534507432-2873-1-git-send-email-hans-erik.floryd@rt-labs.com> X-Mailer: git-send-email 2.7.4 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::12c Subject: [Qemu-devel] [PATCH v2] sdhci: add i.MX SD Stable Clock bit X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Hans-Erik Floryd , "open list:All patches CC here" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Add the ESDHC PRSSTAT_SDSTB bit, using the value of SDHC_CLOCK_INT_STABLE. Freescale recommends checking this bit when changing clock frequency. Signed-off-by: Hans-Erik Floryd --- hw/sd/sdhci-internal.h | 2 ++ hw/sd/sdhci.c | 8 ++++++++ 2 files changed, 10 insertions(+) diff --git a/hw/sd/sdhci-internal.h b/hw/sd/sdhci-internal.h index 756ef3f..19665fd 100644 --- a/hw/sd/sdhci-internal.h +++ b/hw/sd/sdhci-internal.h @@ -302,4 +302,6 @@ extern const VMStateDescription sdhci_vmstate; #define ESDHC_CTRL_4BITBUS (0x1 << 1) #define ESDHC_CTRL_8BITBUS (0x2 << 1) =20 +#define ESDHC_PRNSTS_SDSTB (1 << 3) + #endif diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c index 8f58c31..23069e8 100644 --- a/hw/sd/sdhci.c +++ b/hw/sd/sdhci.c @@ -1651,6 +1651,14 @@ static uint64_t usdhc_read(void *opaque, hwaddr offs= et, unsigned size) =20 break; =20 + case SDHC_PRNSTS: + /* Add SDSTB (SD Clock Stable) bit to PRNSTS */ + ret =3D sdhci_read(opaque, offset, size) & ~ESDHC_PRNSTS_SDSTB; + if (s->clkcon & SDHC_CLOCK_INT_STABLE) { + ret |=3D ESDHC_PRNSTS_SDSTB; + } + break; + case ESDHC_DLL_CTRL: case ESDHC_TUNE_CTRL_STATUS: case ESDHC_UNDOCUMENTED_REG27: --=20 2.7.4