[U-Boot] [PATCH v3 07/20] arm: socfpga: Fix with the correct polling status bit

Dinh Nguyen dinguyen at kernel.org
Mon Oct 16 15:29:36 UTC 2017



On 10/13/2017 03:08 AM, tien.fong.chee at intel.com wrote:
> From: Tien Fong Chee <tien.fong.chee at intel.com>
> 
> Commit 2baa997240d ("arm: socfpga: Add FPGA driver support for Arria 10")
> Polling the wrong status bit. Fix with correct polling status bit.

This message doesn't reflect what the patch is doing. The patch is
checking for the bit be set or cleared, not the status bit.

Dinh
> 
> Fixes: 2baa997240d ("arm: socfpga: Add FPGA driver support for Arria 10")
> 
> Signed-off-by: Tien Fong Chee <tien.fong.chee at intel.com>
> ---
>  drivers/fpga/socfpga_arria10.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/fpga/socfpga_arria10.c b/drivers/fpga/socfpga_arria10.c
> index 5c1a68a..e076bda 100644
> --- a/drivers/fpga/socfpga_arria10.c
> +++ b/drivers/fpga/socfpga_arria10.c
> @@ -112,13 +112,14 @@ static int wait_for_nconfig_pin_and_nstatus_pin(void)
>  	unsigned long mask = ALT_FPGAMGR_IMGCFG_STAT_F2S_NCONFIG_PIN_SET_MSK |
>  				ALT_FPGAMGR_IMGCFG_STAT_F2S_NSTATUS_PIN_SET_MSK;
>  
> -	/* Poll until f2s_nconfig_pin and f2s_nstatus_pin; loop until de-asserted,
> -	 * timeout at 1000ms
> +	/*
> +	 * Poll until f2s_nconfig_pin and f2s_nstatus_pin; loop until
> +	 * de-asserted, timeout at 1000ms
>  	 */
>  	return wait_for_bit(__func__,
>  			    &fpga_manager_base->imgcfg_stat,
>  			    mask,
> -			    false, FPGA_TIMEOUT_MSEC, false);
> +			    true, FPGA_TIMEOUT_MSEC, false);
>  }
>  
>  static int wait_for_f2s_nstatus_pin(unsigned long value)
> 


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