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Ip=[192.88.158.2]; Helo=[az84smr01.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1PR0301MB2062 Subject: [U-Boot] [v2, 1/5] mmc: fsl_esdhc: don't set XFERTYP_RSPTYP_48_BUSY for CMD with busy response X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.15 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" For CMD with busy response, the eSDHC driver would poll DAT0 until CMD completion rather than polling IRQSTAT. So, don't set XFERTYP_RSPTYP_48_BUSY to avoid interrupts (DTOE or TC) in IRQSTAT. Signed-off-by: Yangbo Lu --- Changes for v2: - None --- drivers/mmc/fsl_esdhc.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index a865c7b..b23845d 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -136,8 +136,16 @@ static uint esdhc_xfertyp(struct mmc_cmd *cmd, struct mmc_data *data) xfertyp |= XFERTYP_CICEN; if (cmd->resp_type & MMC_RSP_136) xfertyp |= XFERTYP_RSPTYP_136; - else if (cmd->resp_type & MMC_RSP_BUSY) - xfertyp |= XFERTYP_RSPTYP_48_BUSY; + /* + * For CMD with busy response, the eSDHC driver would poll DAT0 + * until CMD completion rather than polling IRQSTAT. So, don't + * set XFERTYP_RSPTYP_48_BUSY to avoid interrupts (DTOE or TC) + * in IRQSTAT. + * + * Remove: + * else if (cmd->resp_type & MMC_RSP_BUSY) + * xfertyp |= XFERTYP_RSPTYP_48_BUSY; + */ else if (cmd->resp_type & MMC_RSP_PRESENT) xfertyp |= XFERTYP_RSPTYP_48;