[U-Boot] [linux-sunxi] Re: [PATCH 0/7] mmc: sunxi: Enable DM_MMC

[Priit Laes]

On Mon, Jan 14, 2019 at 03:40:37PM +0530, Jagan Teki wrote:
> On Mon, Jan 14, 2019 at 3:05 PM Priit Laes <plaes at plaes.org> wrote:
> >
> > On Fri, Jan 11, 2019 at 11:34:07PM +0530, Jagan Teki wrote:
> > > I thought of waiting this till CLK framework gets Mainline,
> > > but migration deadline for DM_MMC and BLK seems expiring in
> > > next release. So instead of doing so huddle  and make some last
> > > minute changes, I have managed to add CLK, Reset code for mmc
> > > driver via driver data.
> >
> > U-Boot 2019.01-rc3-00084-g0ce29380cf (Jan 14 2019 - 11:22:13 +0200) Allwinner Technology
> >
> > CPU:   Allwinner A20 (SUN7I)
> > Model: Olimex A20-OLinuXino-LIME2-eMMC
> > I2C:   ready
> > DRAM:  1 GiB
> > MMC:   mmc at 1c0f000: 0, mmc at 1c11000: 1
> > Loading Environment from FAT... Card did not respond to voltage select!
> >
> > eMMC seems to be broken:
> > => mmc list
> > mmc at 1c0f000: 0
> > mmc at 1c11000: 1
> > => mmc dev 1
> > => mmc dev 0
> > MMC: no card present
> > => mmc part
> > MMC: no card present
> > => mmc info
> > MMC: no card present
> 
> Can you try this
> diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c
> index 33f1ec5e5a..7fab88c47f 100644
> --- a/drivers/mmc/sunxi_mmc.c
> +++ b/drivers/mmc/sunxi_mmc.c
> @@ -648,7 +648,7 @@ static int sunxi_mmc_probe(struct udevice *dev)
>         gate_reg = (void *)ccu_reg + priv->variant->gate_offset;
>         setbits_le32(gate_reg, BIT(AHB_GATE_OFFSET_MMC(priv->mmc_no)));
> 
> -       if ((!IS_ENABLED(CONFIG_MACH_SUN4I)) && priv->variant->has_reset) {
> +       if ((!IS_ENABLED(CONFIG_MACH_SUN7I)) && priv->variant->has_reset) {
>                 reset_reg = (void *)ccu_reg + priv->variant->reset_offset;
>                 setbits_le32(reset_reg, BIT(priv->mmc_no +
>                              priv->variant->reset_start_bit));

Still fails:

MMC: no card present
scanning bus for devices...
Found 0 device(s).

Device 0: unknown device

Device 0: unknown device

> >
> > Setting up a 640x480 dvi console (overscan 0x0)
> > In:    serial
> > Out:   vga
> > Err:   vga
> > Allwinner mUSB OTG (Peripheral)
> > SCSI:  SATA link 0 timeout.
> > AHCI 0001.0100 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
> > flags: ncq stag pm led clo only pmp pio slum part ccc apst
> >
> > Net:   sunxi_set_gate: (CLK#66) unhandled
> > eth0: ethernet at 1c50000
> >
> >
> > And also CLK#66 message
> 
> This is expected, looking EMAC clock from dw driver, will handle in
> next series. to be noted we enable print.
> 
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