> -----Original Message-----
> From: York Sun
> Sent: Wednesday, June 14, 2017 2:16 AM
> To: Santan Kumar <santan.ku...@nxp.com>; u-boot@lists.denx.de
> Cc: Priyanka Jain <priyanka.j...@nxp.com>
> Subject: Re: [PATCH 1/1] board/ls2080ardb: Disable SD-related GPIO
> programming
>
> On 06/08/2017 11:16 PM, Santan Kumar wrote:
> > LS2080ARDB/LS2088ARDB updated RevF boards do not have smart voltage
> > translator, so no need to program GPIO for LS2088ARDB boards The GPIO
> > programming is required only for LS2081ARDB.
> >
> > Signed-off-by: Santan Kumar <santan.ku...@nxp.com>
> > Signed-off-by: Priyanka Jain <priyanka.j...@nxp.com>
> > ---
> > board/freescale/ls2080ardb/ls2080ardb.c | 18 ++----------------
> > 1 file changed, 2 insertions(+), 16 deletions(-)
> >
> > diff --git a/board/freescale/ls2080ardb/ls2080ardb.c
> > b/board/freescale/ls2080ardb/ls2080ardb.c
> > index df2d768..210142c 100644
> > --- a/board/freescale/ls2080ardb/ls2080ardb.c
> > +++ b/board/freescale/ls2080ardb/ls2080ardb.c
> > @@ -257,31 +257,17 @@ int board_early_init_f(void)
> >
> > int misc_init_r(void)
> > {
> > -#ifdef CONFIG_FSL_QIXIS
> > - /*
> > - * LS2081ARDB has smart voltage translator which needs
> > - * to be programmed as below
> > - */
> > -#ifndef CONFIG_TARGET_LS2081ARDB
> > - u8 sw;
> > -
> > - sw = QIXIS_READ(arch);
> > /*
> > - * LS2080ARDB/LS2088ARDB RevF board has smart voltage translator
> > + * LS2081ARDB RevF board has smart voltage translator
> > * which needs to be programmed to enable high speed SD interface
> > * by setting GPIO4_10 output to zero
> > */
> > - if ((sw & 0xf) == 0x5) {
> > -#endif
> > +#ifdef CONFIG_TARGET_LS2081ARDB
> > out_le32(GPIO4_GPDIR_ADDR, (1 << 21 |
> > in_le32(GPIO4_GPDIR_ADDR)));
> > out_le32(GPIO4_GPDAT_ADDR, (~(1 << 21) &
> > in_le32(GPIO4_GPDAT_ADDR))); -
> #ifndef
> > CONFIG_TARGET_LS2081ARDB
> > - }
> > -#endif
> > #endif
> > -
> > if (hwconfig("sdhc"))
> > config_board_mux(MUX_TYPE_SDHC);
> >
> >
>
> This change is not backward-compatible, is it?
>
> York
Yes, It is backward compatible. As per updated board designs and the
manufactured boards, GPIO programming is required only for LS2081ARDB boards.
Priyanka
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