The next version of this patchseries will include patch with name
"arm: mvebu: turris_omnia: move I2C dependencies to Kconfig",
which adds
select DM_I2C
to
config TARGET_TURRIS_OMNIA
Marek
On Sun, 28 Apr 2019 14:59:10 +0300
Baruch Siach <[email protected]> wrote:
> Hi Marek,
>
> On Thu, Apr 25 2019, Marek Behún wrote:
> > The i2c slave disabling is done by mvtwsi driver and is not needed here.
> >
> > Signed-off-by: Marek Behún <[email protected]>
> > Cc: Baruch Siach <[email protected]>
> > ---
> > board/CZ.NIC/turris_omnia/turris_omnia.c | 11 -----------
> > 1 file changed, 11 deletions(-)
> >
> > diff --git a/board/CZ.NIC/turris_omnia/turris_omnia.c
> > b/board/CZ.NIC/turris_omnia/turris_omnia.c
> > index c21d2f3ffa..c446f471a6 100644
> > --- a/board/CZ.NIC/turris_omnia/turris_omnia.c
> > +++ b/board/CZ.NIC/turris_omnia/turris_omnia.c
> > @@ -297,8 +297,6 @@ static int set_regdomain(void)
> >
> > int board_early_init_f(void)
> > {
> > - u32 i2c_debug_reg;
> > -
> > /* Configure MPP */
> > writel(0x11111111, MVEBU_MPP_BASE + 0x00);
> > writel(0x11111111, MVEBU_MPP_BASE + 0x04);
> > @@ -321,15 +319,6 @@ int board_early_init_f(void)
> > writel(OMNIA_GPP_OUT_ENA_LOW, MVEBU_GPIO0_BASE + 0x04);
> > writel(OMNIA_GPP_OUT_ENA_MID, MVEBU_GPIO1_BASE + 0x04);
> >
> > - /*
> > - * Disable I2C debug mode blocking 0x64 I2C address.
> > - * Note: that would be redundant once Turris Omnia migrates to DM_I2C,
> > - * because the mvtwsi driver includes equivalent code.
> > - */
>
> As this comment notes, Turris Omnia needs to migrate to DM_I2C before
> removing this code. The non DM code path in the mvtwsi driver does not
> disable the debug I2C client.
>
> Is there a pending patch that enables DM_I2C for Turris Omnia?
>
> > - i2c_debug_reg = readl(MVEBU_TWSI_BASE + MVTWSI_ARMADA_DEBUG_REG);
> > - i2c_debug_reg &= ~(1<<18);
> > - writel(i2c_debug_reg, MVEBU_TWSI_BASE + MVTWSI_ARMADA_DEBUG_REG);
> > -
> > return 0;
> > }
>
> baruch
>
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