[U-Boot] [PATCH] imx: mx6qsabreauto: Change to use common GPMI IO clock function

[Stefano Babic]

Hi,

On 12/01/2015 10:37, Ye.Li wrote:
> Since a clock function setup_gpmi_io_clk is implemented for GPMI
> IO clock settings, change to use this common function in GPMI setup.
> 
> Signed-off-by: Ye.Li <B37916 at freescale.com>
> ---
>  board/freescale/mx6qsabreauto/mx6qsabreauto.c |   25 ++-----------------------
>  1 files changed, 2 insertions(+), 23 deletions(-)
> 
> diff --git a/board/freescale/mx6qsabreauto/mx6qsabreauto.c b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
> index 59387ff..a90360f 100644
> --- a/board/freescale/mx6qsabreauto/mx6qsabreauto.c
> +++ b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
> @@ -311,30 +311,9 @@ static void setup_gpmi_nand(void)
>  	/* config gpmi nand iomux */
>  	imx_iomux_v3_setup_multiple_pads(gpmi_pads, ARRAY_SIZE(gpmi_pads));
>  
> -	/* gate ENFC_CLK_ROOT clock first,before clk source switch */
> -	clrbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
> -	clrbits_le32(&mxc_ccm->CCGR4,
> -		MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK);
> -
> -	/* config gpmi and bch clock to 100 MHz */
> -	clrsetbits_le32(&mxc_ccm->cs2cdr,
> -			MXC_CCM_CS2CDR_ENFC_CLK_PODF_MASK |
> -			MXC_CCM_CS2CDR_ENFC_CLK_PRED_MASK |
> -			MXC_CCM_CS2CDR_ENFC_CLK_SEL_MASK,
> -			MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) |
> +	setup_gpmi_io_clk((MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) |
>  			MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) |
> -			MXC_CCM_CS2CDR_ENFC_CLK_SEL(3));
> -
> -	/* enable ENFC_CLK_ROOT clock */
> -	setbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
> -
> -	/* enable gpmi and bch clock gating */
> -	setbits_le32(&mxc_ccm->CCGR4,
> -		     MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
> -		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
> -		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
> -		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
> -		     MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_OFFSET);
> +			MXC_CCM_CS2CDR_ENFC_CLK_SEL(3)));
>  
>  	/* enable apbh clock gating */
>  	setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
> 

This is ok, but you see that if setup_gpmi_io_clk() is exapanded as in
your "mx6: clock: Modify GPMI clock to support mx6sx" (I understand that
it was protected by processor's config), it could be a problem. Anyway,
this is ok and will be merged.

Acked-by: Stefano Babic <sbabic at denx.de>

Best regards,
Stefano Babic


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