static int dw_mmc_probe(struct device_d *dev)
{
struct resource *iores;
struct dwmci_host *host;
struct dw_mmc_platform_data *pdata = dev->platform_data;
host = xzalloc(sizeof(*host));
host->clk_biu = clk_get(dev, "biu");
if (IS_ERR(host->clk_biu))
return PTR_ERR(host->clk_biu);
host->clk_ciu = clk_get(dev, "ciu");
if (IS_ERR(host->clk_ciu))
return PTR_ERR(host->clk_ciu);
clk_enable(host->clk_biu);
clk_enable(host->clk_ciu);
host->dev = dev;
iores = dev_request_mem_resource(dev, 0);
if (IS_ERR(iores))
return PTR_ERR(iores);
host->ioaddr = IOMEM(iores->start);
host->idmac = dma_alloc_coherent(sizeof(*host->idmac) * DW_MMC_NUM_IDMACS,
DMA_ADDRESS_BROKEN);
host->mci.send_cmd = dwmci_cmd;
host->mci.set_ios = dwmci_set_ios;
host->mci.init = dwmci_init;
host->mci.card_present = dwmci_card_present;
host->mci.hw_dev = dev;
host->mci.voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
host->mci.host_caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA;
host->mci.host_caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED_52MHZ |
MMC_CAP_SD_HIGHSPEED;
if (pdata) {
host->ciu_div = pdata->ciu_div;
host->mci.host_caps &= ~MMC_CAP_BIT_DATA_MASK;
host->mci.host_caps |= pdata->bus_width_caps;
} else if (dev->device_node) {
const char *alias = of_alias_get(dev->device_node);
if (alias)
host->mci.devname = xstrdup(alias);
of_property_read_u32(dev->device_node, "dw-mshc-ciu-div",
&host->ciu_div);
}
/* divider is 0 based in pdata and 1 based in our private struct */
host->ciu_div++;
if (of_device_is_compatible(dev->device_node,
"rockchip,rk2928-dw-mshc"))
host->pwren_value = 0;
else
host->pwren_value = 1;
dev->detect = dw_mmc_detect;
host->clkrate = clk_get_rate(host->clk_ciu);
host->mci.f_min = host->clkrate / 510 / host->ciu_div;
if (host->mci.f_min < 200000)
host->mci.f_min = 200000;
host->mci.f_max = host->clkrate / host->ciu_div;
mci_of_parse(&host->mci);
dev->priv = host;
return mci_register(&host->mci);
}
static int dw_mmc_probe(struct device_d *dev)
{
struct dwmci_host *host;
struct mci_host *mci;
struct dw_mmc_platform_data *pdata = dev->platform_data;
host = xzalloc(sizeof(*host));
mci = &host->mci;
host->clk_biu = clk_get(dev, "biu");
if (IS_ERR(host->clk_biu))
return PTR_ERR(host->clk_biu);
host->clk_ciu = clk_get(dev, "ciu");
if (IS_ERR(host->clk_ciu))
return PTR_ERR(host->clk_ciu);
clk_enable(host->clk_biu);
clk_enable(host->clk_ciu);
host->dev = dev;
host->ioaddr = dev_request_mem_region(dev, 0);
if (!host->ioaddr)
return -EBUSY;
if (pdata) {
mci->devname = pdata->devname;
host->ciu_div = pdata->ciu_div;
} else if (dev->device_node) {
const char *alias = of_alias_get(dev->device_node);
if (alias)
mci->devname = xstrdup(alias);
of_property_read_u32(dev->device_node, "dw-mshc-ciu-div",
&host->ciu_div);
}
/* divider is 0 based in pdata and 1 based in our private struct */
host->ciu_div++;
host->idmac = dma_alloc_coherent(sizeof(*host->idmac) * DW_MMC_NUM_IDMACS);
host->mci.send_cmd = dwmci_cmd;
host->mci.set_ios = dwmci_set_ios;
host->mci.init = dwmci_init;
host->mci.card_present = dwmci_card_present;
host->mci.hw_dev = dev;
host->mci.voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
host->mci.host_caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA;
dev->detect = dw_mmc_detect;
host->clkrate = clk_get_rate(host->clk_ciu);
host->mci.f_min = host->clkrate / 510 / host->ciu_div;
if (host->mci.f_min < 200000)
host->mci.f_min = 200000;
host->mci.f_max = host->clkrate / host->ciu_div;
mci_of_parse(&host->mci);
dev->priv = host;
return mci_register(&host->mci);
}
