static int sdhci_get_config(const void *blob, int node, struct sdhci_host *host)
{
int bus_width, dev_id;
unsigned int base;
/* Get device id */
dev_id = pinmux_decode_periph_id(blob, node);
if (dev_id < PERIPH_ID_SDMMC0 && dev_id > PERIPH_ID_SDMMC3) {
debug("MMC: Can't get device id\n");
return -1;
}
host->index = dev_id - PERIPH_ID_SDMMC0;
/* Get bus width */
bus_width = fdtdec_get_int(blob, node, "samsung,bus-width", 0);
if (bus_width <= 0) {
debug("MMC: Can't get bus-width\n");
return -1;
}
host->bus_width = bus_width;
/* Get the base address from the device node */
base = fdtdec_get_addr(blob, node, "reg");
if (!base) {
debug("MMC: Can't get base address\n");
return -1;
}
host->ioaddr = (void *)base;
fdtdec_decode_gpio(blob, node, "pwr-gpios", &host->pwr_gpio);
fdtdec_decode_gpio(blob, node, "cd-gpios", &host->cd_gpio);
return 0;
}
static int s3c_i2c_ofdata_to_platdata(struct udevice *dev)
{
const void *blob = gd->fdt_blob;
struct s3c24x0_i2c_bus *i2c_bus = dev_get_priv(dev);
int node;
node = dev_of_offset(dev);
i2c_bus->regs = (struct s3c24x0_i2c *)dev_get_addr(dev);
i2c_bus->id = pinmux_decode_periph_id(blob, node);
i2c_bus->clock_frequency = fdtdec_get_int(blob, node,
"clock-frequency", 100000);
i2c_bus->node = node;
i2c_bus->bus_num = dev->seq;
exynos_pinmux_config(i2c_bus->id, 0);
i2c_bus->active = true;
return 0;
}
int exynos_dwmmc_init(const void *blob)
{
int index, bus_width;
int node_list[DWMMC_MAX_CH_NUM];
int err = 0, dev_id, flag, count, i;
u32 clksel_val, base, timing[3];
count = fdtdec_find_aliases_for_id(blob, "mmc",
COMPAT_SAMSUNG_EXYNOS5_DWMMC, node_list,
DWMMC_MAX_CH_NUM);
for (i = 0; i < count; i++) {
int node = node_list[i];
if (node <= 0)
continue;
/* Extract device id for each mmc channel */
dev_id = pinmux_decode_periph_id(blob, node);
/* Get the bus width from the device node */
bus_width = fdtdec_get_int(blob, node, "samsung,bus-width", 0);
if (bus_width <= 0) {
debug("DWMMC: Can't get bus-width\n");
return -1;
}
if (8 == bus_width)
flag = PINMUX_FLAG_8BIT_MODE;
else
flag = PINMUX_FLAG_NONE;
/* config pinmux for each mmc channel */
err = exynos_pinmux_config(dev_id, flag);
if (err) {
debug("DWMMC not configured\n");
return err;
}
index = dev_id - PERIPH_ID_SDMMC0;
/* Get the base address from the device node */
base = fdtdec_get_addr(blob, node, "reg");
if (!base) {
debug("DWMMC: Can't get base address\n");
return -1;
}
/* Extract the timing info from the node */
err = fdtdec_get_int_array(blob, node, "samsung,timing",
timing, 3);
if (err) {
debug("Can't get sdr-timings for divider\n");
return -1;
}
clksel_val = (DWMCI_SET_SAMPLE_CLK(timing[0]) |
DWMCI_SET_DRV_CLK(timing[1]) |
DWMCI_SET_DIV_RATIO(timing[2]));
/* Initialise each mmc channel */
err = exynos_dwmci_add_port(index, base, bus_width, clksel_val);
if (err)
debug("dwmmc Channel-%d init failed\n", index);
}
return 0;
}
