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[212.116.72.195]) by smtp.gmail.com with ESMTPSA id o11-v6sm373958lfl.1.2018.08.17.05.11.04 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 17 Aug 2018 05:11:04 -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=C630EjXGywW3R5T8Ph+gchKiZk8BCxuNsw+lx5GsFXk=; b=YEJ6i94l4QXFhQRnt4kZrDX5kmNO/eENJuwKehU0ZJPhWC/5PFGPip8xz0rRTiE8ZJ FTnmzSSuSJJkG0pmrPY/4jtVfr8MU+w4LLooGEpFIaAMv0vB8qH1tp2uIn7EyG9KBEK0 YYe2OW+gaAOjaLJCix+QFR7y7Qlvdc599ZLyFdrmhMS0RkJ46e0rvsMFfrTWpkCnVM68 3E+kuw9H3pP/EUCwJBy+PRQ0iKr3OK69c+mMkBzNdA/sSj+ocF0A/BxoEmQu+aKPU8gr oJV7Shln8oGDcNtl7xetHdksl6ZXkVOJdeuQ9SioO6BFbFsFpkdyPCYGraoGwAtc9LuE 9gbg== 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=C630EjXGywW3R5T8Ph+gchKiZk8BCxuNsw+lx5GsFXk=; b=fbycndArXbRJ5GXE66CzHLJ6nuGYMJV5FWYNIJDXtSxCsF7aYBtmx+s6AqCSCkfFPN dP41j1bZGVqQ2h4Met8cw7ma+1jKaEpEaXauK7RDDFBoFF5HMh8Xz7yu/RJUnvtxv3Hs 3BL72l/TWfsaAvybMSy0XFbll5qC+1SKHtE9f17nsMsLp/tLOA0nepes4RLNiKcq9r9V qG6JRgf+dxlNJAjkppxTT9yM1ZL2JHp2zYy/7ABDV3aV/pBoTaeXCUFE3Mo75pXwLMD6 ++K5SRQz1tZL0EYGVR6na2kC4ZoLig+sQc8ROqb0Hwbf5bi7Nn3fVEJz3ltA70uHjDov 5fLg== X-Gm-Message-State: AOUpUlGVfTwpRBT/53dnuzy7OGtcGgNQe/HZzb8mTm/s8qg4mqvvQN1S I1GRCgqf3b79AFBO1f4B2BHQvw== X-Google-Smtp-Source: AA+uWPyrxT504+JCg3qbkPeJUpceJ+xD1G5E4wAffjb/wWc+bNP6j2rbAYn63Ubmx7wzdKJ7s6PsoQ== X-Received: by 2002:a2e:4d51:: with SMTP id a78-v6mr23296093ljb.106.1534507865078; Fri, 17 Aug 2018 05:11:05 -0700 (PDT) From: Hans-Erik Floryd To: qemu-trivial@nongnu.org Date: Fri, 17 Aug 2018 14:10:43 +0200 Message-Id: <1534507843-4251-1-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::233 Subject: [Qemu-devel] [PATCH v3] 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..5201f3c 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