On Fri, Apr 09, 2021 at 03:11:44PM +0200, Oleksij Rempel wrote:
> +int at91_mci_bio_init(struct pbl_bio *bio, void __iomem *base,
> + unsigned int clock, unsigned int slot)
> +{
> + struct atmel_mci_priv *priv = &atmci_sdcard;
> + struct atmel_mci *host = &priv->host;
> + struct mci_ios ios = { .bus_width = MMC_BUS_WIDTH_4, .clock = 25000000
> };
> +
> + bio->priv = priv;
> + bio->read = at91_mci_bio_read;
> +
> + host->regs = base;
> +
> + atmci_get_cap(host);
> +
> + /* get real HZ */
> + host->bus_hz = clock;
> +
> + host->slot_b = slot;
> + if (host->slot_b)
> + host->sdc_reg = ATMCI_SDCSEL_SLOT_B;
> + else
> + host->sdc_reg = ATMCI_SDCSEL_SLOT_A;
> +
> + atmci_writel(host, ATMCI_DTOR, 0x7f);
> +
> + atmci_common_set_ios(host, &ios);
Is it necessary to call this? The ROM should have already configured the
controller. By relying on this you could drop the controller
initialization code from PBL.
Sascha
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