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[212.116.72.195]) by smtp.gmail.com with ESMTPSA id d14-v6sm4314721ljc.56.2018.08.16.05.29.12 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 16 Aug 2018 05:29:13 -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=W8XY0EP9ae+WqaLnakGIReV/uWFOMxsmGsoGS45KijM=; b=TvU4MPFneunoS0beW9pDUh0Tlrtbbbk5js02sBWWwdVdMK4Rmc0j7Uxx+x9DtKG3SR BhmneqH1X4oR6pc5KZzFgOquQsRICZXm42A84N5ekbBW8FSZ6jdTNsgpK/oTmrlfQCB9 ytGEqrgnOpWsHV9U3MyVWC2Dgj6Y8SC+DXx85sFF8VMVdhCajdhaVz4rS0ZC7h2UZFpa pxgguZMDq30rOgFMhtfKAN8VuNcGPBa38jtIqQVgdBWWn3Pnhpln6lVJy2ZA5oKXZM5Q MG7okCr7iUm7aZGCuSfhTMPwWBj/XLciRuJctihgbBl2WtXJfOMNgQD/Wt5+0r4O91Ih nEow== 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=W8XY0EP9ae+WqaLnakGIReV/uWFOMxsmGsoGS45KijM=; b=YZfdqEiwX8fyYpTDeKga+N3hXGd3FnHylMgZAPXPqnCbDmSzHnKOUB5Z+jugyhxdGm MtpqDGgWob74aR8zzwUjYp02+lCgaZ+7Z0RWXbBBPzrWmhcnP5WmCQPFoA2etAw6f+mG m3BFMp9EZ5Zf4eVgX6UPRv8kBjQ8nTQCYVhoMgVGhKrB7GKH60rwiVV5SIwoHuP8tOcW 8VnENRZwS/n2tZ/kn74ipkdfQjLOpT7rdMN5QuLG2IPPdHneWQBFqyNJUARaleC4lDkE ii07Gr2ICn5CjxTjHq7xRCp87ExGAnJf/KdlKaSdlEOjriW6879mtk/7UTpNRVOsK4cz Lb1w== X-Gm-Message-State: AOUpUlGinEyc4DwOOMRQmPFyfv8jrBod221gUbi0mFdwMMdqlFWbIMTx 6FhX4MHW8fKfH6T9+KY4k209QQ== X-Google-Smtp-Source: AA+uWPyvHeU1yrEHrc5FU6MDmai/UUQIS1iqSaDboTeHRMIqyyQWEBaIzROXL992Lr4KWjTmerwPyA== X-Received: by 2002:a2e:91d6:: with SMTP id u22-v6mr20562185ljg.64.1534422554330; Thu, 16 Aug 2018 05:29:14 -0700 (PDT) From: Hans-Erik Floryd To: qemu-trivial@nongnu.org Date: Thu, 16 Aug 2018 14:29:00 +0200 Message-Id: <1534422540-18815-1-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::241 Subject: [Qemu-devel] [PATCH] 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 | 7 +++++++ 2 files changed, 9 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..cb82782 100644 --- a/hw/sd/sdhci.c +++ b/hw/sd/sdhci.c @@ -1651,6 +1651,13 @@ 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