omap_hsmmc.c

static int omap_hsmmc_ofdata_to_platdata(struct udevice *dev)
{
	struct omap_hsmmc_plat *plat = dev_get_platdata(dev);
	struct mmc_config *cfg = &plat->cfg;
	const void *fdt = gd->fdt_blob;
	int node = dev_of_offset(dev);
	int val;

	plat->base_addr = map_physmem(devfdt_get_addr(dev),
				      sizeof(struct hsmmc *),
				      MAP_NOCACHE);

	cfg->host_caps = MMC_MODE_HS_52MHz | MMC_MODE_HS;
	val = fdtdec_get_int(fdt, node, "bus-width", -1);
	if (val < 0) {
		printf("error: bus-width property missing\n");
		return -ENOENT;
	}

	switch (val) {
	case 0x8:
		cfg->host_caps |= MMC_MODE_8BIT;
	case 0x4:
		cfg->host_caps |= MMC_MODE_4BIT;
		break;
	default:
		printf("error: invalid bus-width property\n");
		return -ENOENT;
	}

	cfg->f_min = 400000;
	cfg->f_max = fdtdec_get_int(fdt, node, "max-frequency", 52000000);
	cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
	cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;

#ifdef OMAP_HSMMC_USE_GPIO
	plat->cd_inverted = fdtdec_get_bool(fdt, node, "cd-inverted");
#endif

	return 0;
}
#endif

#ifdef CONFIG_BLK

static int omap_hsmmc_bind(struct udevice *dev)
{
	struct omap_hsmmc_plat *plat = dev_get_platdata(dev);

	return mmc_bind(dev, &plat->mmc, &plat->cfg);
}
#endif
static int omap_hsmmc_probe(struct udevice *dev)
{
	struct omap_hsmmc_plat *plat = dev_get_platdata(dev);
	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
	struct omap_hsmmc_data *priv = dev_get_priv(dev);
	struct mmc_config *cfg = &plat->cfg;
	struct mmc *mmc;

	cfg->name = "OMAP SD/MMC";
	priv->base_addr = plat->base_addr;
#ifdef OMAP_HSMMC_USE_GPIO
	priv->cd_inverted = plat->cd_inverted;
#endif

#ifdef CONFIG_BLK
	mmc = &plat->mmc;
#else
	mmc = mmc_create(cfg, priv);
	if (mmc == NULL)
		return -1;
#endif

#if defined(OMAP_HSMMC_USE_GPIO) && CONFIG_IS_ENABLED(OF_CONTROL)
	gpio_request_by_name(dev, "cd-gpios", 0, &priv->cd_gpio, GPIOD_IS_IN);
	gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio, GPIOD_IS_IN);
#endif

	mmc->dev = dev;
	upriv->mmc = mmc;

	return omap_hsmmc_init_setup(mmc);
}

#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
static const struct udevice_id omap_hsmmc_ids[] = {
	{ .compatible = "ti,omap3-hsmmc" },
	{ .compatible = "ti,omap4-hsmmc" },
	{ .compatible = "ti,am33xx-hsmmc" },
	{ }
};
#endif

U_BOOT_DRIVER(omap_hsmmc) = {
	.name	= "omap_hsmmc",
	.id	= UCLASS_MMC,
#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
	.of_match = omap_hsmmc_ids,
	.ofdata_to_platdata = omap_hsmmc_ofdata_to_platdata,
	.platdata_auto_alloc_size = sizeof(struct omap_hsmmc_plat),
#endif
#ifdef CONFIG_BLK
	.bind = omap_hsmmc_bind,
#endif
	.ops = &omap_hsmmc_ops,
	.probe	= omap_hsmmc_probe,
	.priv_auto_alloc_size = sizeof(struct omap_hsmmc_data),
	.flags	= DM_FLAG_PRE_RELOC,
};
#endif