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mmc: fsl_esdhc: Do not set high speed mode on MX25 and MX51
Currently when a high speed SD card is connected on MX25 or MX51 boards the following error happens: U-Boot 2017.11-rc2 (Oct 18 2017 - 13:49:26 -0200) CPU: Freescale i.MX51 rev3.0 at 800 MHz Reset cause: POR Board: MX51EVK DRAM: 512 MiB MMC: FSL_SDHC: 0, FSL_SDHC: 1 *** Warning - read failed, using default environment In: serial Out: serial Err: serial Net: FEC Hit any key to stop autoboot: 0 => saveenv Saving Environment to MMC... Writing to MMC(0)... failed Workaround this issue by not setting the mmc high speed mode flags even if the HOSTCAPBLT register reports that the SD card can operate at high speed. Tested on imx51evk and imx25pdk boards. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Tested-by: Otavio Salvador <otavio@ossystems.com.br> # imx25pdk Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
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@ -850,8 +850,10 @@ static int fsl_esdhc_init(struct fsl_esdhc_priv *priv,
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cfg->host_caps &= ~MMC_MODE_4BIT;
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}
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#if !defined(CONFIG_MX25) && !defined(CONFIG_MX51)
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if (caps & ESDHC_HOSTCAPBLT_HSS)
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cfg->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
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#endif
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#ifdef CONFIG_ESDHC_DETECT_8_BIT_QUIRK
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if (CONFIG_ESDHC_DETECT_8_BIT_QUIRK)
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