Re: [U-Boot] [PATCH] mmc: fsl_esdhc: update eMMC44 adapter card erase timeout

Hi Yango,

On Apr 15, 2015, at 05:13 , Yangbo Lu yangbo.lu@freescale.com wrote:

Freescale eMMC44 adapter card uses Micron N2M400FDB311A3CF eMMC memory. According to the silicon datasheet, secure erase timeout is 600ms. So increase erase timeout value from 250ms to 600ms.

Signed-off-by: Yangbo Lu yangbo.lu@freescale.com Cc: York Sun yorksun@freescale.com

---

drivers/mmc/fsl_esdhc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index f5d2ccb..e879fc0 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -344,9 +344,9 @@ esdhc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)

/* Workaround for ESDHC errata ENGcm03648 */ if (!data && (cmd->resp_type & MMC_RSP_BUSY)) {

• int timeout = 2500;
  

• int timeout = 6000;
  
  

• /* Poll on DATA0 line for cmd with busy signal for 250 ms */
  

• /* Poll on DATA0 line for cmd with busy signal for 600 ms */
  

  while (timeout > 0 && !(esdhc_read32(&regs->prsstat) & PRSSTAT_DAT0)) { udelay(100);

-- 2.1.0.27.g96db324

Applied, Thanks.

— Pantelis