static int tegra30_spi_ofdata_to_platdata(struct udevice *bus)
{
struct tegra_spi_platdata *plat = bus->platdata;
const void *blob = gd->fdt_blob;
int node = bus->of_offset;
plat->base = fdtdec_get_addr(blob, node, "reg");
plat->periph_id = clock_decode_periph_id(blob, node);
if (plat->periph_id == PERIPH_ID_NONE) {
debug("%s: could not decode periph id %d\n", __func__,
plat->periph_id);
return -FDT_ERR_NOTFOUND;
}
/* Use 500KHz as a suitable default */
plat->frequency = fdtdec_get_int(blob, node, "spi-max-frequency",
500000);
plat->deactivate_delay_us = fdtdec_get_int(blob, node,
"spi-deactivate-delay", 0);
debug("%s: base=%#08lx, periph_id=%d, max-frequency=%d, deactivate_delay=%d\n",
__func__, plat->base, plat->periph_id, plat->frequency,
plat->deactivate_delay_us);
return 0;
}
static int i2c_get_config(const void *blob, int node, struct i2c_bus *i2c_bus)
{
i2c_bus->regs = (struct i2c_ctlr *)fdtdec_get_addr(blob, node, "reg");
/*
* We don't have a binding for pinmux yet. Leave it out for now. So
* far no one needs anything other than the default.
*/
i2c_bus->pinmux_config = FUNCMUX_DEFAULT;
i2c_bus->speed = fdtdec_get_int(blob, node, "clock-frequency", 0);
i2c_bus->periph_id = clock_decode_periph_id(blob, node);
/*
* We can't specify the pinmux config in the fdt, so I2C2 will not
* work on Seaboard. It normally has no devices on it anyway.
* You could add in this little hack if you need to use it.
* The correct solution is a pinmux binding in the fdt.
*
* if (i2c_bus->periph_id == PERIPH_ID_I2C2)
* i2c_bus->pinmux_config = FUNCMUX_I2C2_PTA;
*/
if (i2c_bus->periph_id == -1)
return -FDT_ERR_NOTFOUND;
return 0;
}
static int fdt_decode_usb(const void *blob, int node, struct fdt_usb *config)
{
const char *phy, *mode;
config->reg = (struct usb_ctlr *)fdtdec_get_addr(blob, node, "reg");
mode = fdt_getprop(blob, node, "dr_mode", NULL);
if (mode) {
if (0 == strcmp(mode, "host"))
config->dr_mode = DR_MODE_HOST;
else if (0 == strcmp(mode, "peripheral"))
config->dr_mode = DR_MODE_DEVICE;
else if (0 == strcmp(mode, "otg"))
config->dr_mode = DR_MODE_OTG;
else {
debug("%s: Cannot decode dr_mode '%s'\n", __func__,
mode);
return -FDT_ERR_NOTFOUND;
}
} else {
config->dr_mode = DR_MODE_HOST;
}
phy = fdt_getprop(blob, node, "phy_type", NULL);
config->utmi = phy && 0 == strcmp("utmi", phy);
config->ulpi = phy && 0 == strcmp("ulpi", phy);
config->enabled = fdtdec_get_is_enabled(blob, node);
config->has_legacy_mode = fdtdec_get_bool(blob, node,
"nvidia,has-legacy-mode");
if (config->has_legacy_mode)
port_addr_clear_csc = (u32) config->reg;
config->periph_id = clock_decode_periph_id(blob, node);
if (config->periph_id == PERIPH_ID_NONE) {
debug("%s: Missing/invalid peripheral ID\n", __func__);
return -FDT_ERR_NOTFOUND;
}
fdtdec_decode_gpio(blob, node, "nvidia,vbus-gpio", &config->vbus_gpio);
fdtdec_decode_gpio(blob, node, "nvidia,phy-reset-gpio",
&config->phy_reset_gpio);
debug("enabled=%d, legacy_mode=%d, utmi=%d, ulpi=%d, periph_id=%d, "
"vbus=%d, phy_reset=%d, dr_mode=%d\n",
config->enabled, config->has_legacy_mode, config->utmi,
config->ulpi, config->periph_id, config->vbus_gpio.gpio,
config->phy_reset_gpio.gpio, config->dr_mode);
return 0;
}
/**
* Get the host address and peripheral ID for a node.
*
* @param blob fdt blob
* @param node Device index (0-3)
* @param host Structure to fill in (reg, width, mmc_id)
*/
static int mmc_get_config(const void *blob, int node, struct mmc_host *host,
bool *removablep)
{
debug("%s: node = %d\n", __func__, node);
host->enabled = fdtdec_get_is_enabled(blob, node);
host->reg = (struct tegra_mmc *)fdtdec_get_addr(blob, node, "reg");
if ((fdt_addr_t)host->reg == FDT_ADDR_T_NONE) {
debug("%s: no sdmmc base reg info found\n", __func__);
return -FDT_ERR_NOTFOUND;
}
host->mmc_id = clock_decode_periph_id(blob, node);
if (host->mmc_id == PERIPH_ID_NONE) {
debug("%s: could not decode periph id\n", __func__);
return -FDT_ERR_NOTFOUND;
}
/*
* NOTE: mmc->bus_width is determined by mmc.c dynamically.
* TBD: Override it with this value?
*/
host->width = fdtdec_get_int(blob, node, "bus-width", 0);
if (!host->width)
debug("%s: no sdmmc width found\n", __func__);
/* These GPIOs are optional */
gpio_request_by_name_nodev(blob, node, "cd-gpios", 0, &host->cd_gpio,
GPIOD_IS_IN);
gpio_request_by_name_nodev(blob, node, "wp-gpios", 0, &host->wp_gpio,
GPIOD_IS_IN);
gpio_request_by_name_nodev(blob, node, "power-gpios", 0,
&host->pwr_gpio, GPIOD_IS_OUT);
*removablep = !fdtdec_get_bool(blob, node, "non-removable");
debug("%s: found controller at %p, width = %d, periph_id = %d\n",
__func__, host->reg, host->width, host->mmc_id);
return 0;
}
/**
* Get the host address and peripheral ID for a node.
*
* @param blob fdt blob
* @param node Device index (0-3)
* @param host Structure to fill in (reg, width, mmc_id)
*/
static int mmc_get_config(const void *blob, int node, struct mmc_host *host,
bool *removablep)
{
debug("%s: node = %d\n", __func__, node);
host->enabled = fdtdec_get_is_enabled(blob, node);
host->reg = (struct tegra_mmc *)fdtdec_get_addr(blob, node, "reg");
if ((fdt_addr_t)host->reg == FDT_ADDR_T_NONE) {
debug("%s: no sdmmc base reg info found\n", __func__);
return -FDT_ERR_NOTFOUND;
}
#ifdef CONFIG_TEGRA186
{
/*
* FIXME: This variable should go away when the MMC device
* actually is a udevice.
*/
struct udevice dev;
int ret;
dev.of_offset = node;
ret = reset_get_by_name(&dev, "sdhci", &host->reset_ctl);
if (ret) {
debug("reset_get_by_name() failed: %d\n", ret);
return ret;
}
ret = clk_get_by_index(&dev, 0, &host->clk);
if (ret) {
debug("clk_get_by_index() failed: %d\n", ret);
return ret;
}
}
#else
host->mmc_id = clock_decode_periph_id(blob, node);
if (host->mmc_id == PERIPH_ID_NONE) {
debug("%s: could not decode periph id\n", __func__);
return -FDT_ERR_NOTFOUND;
}
#endif
/*
* NOTE: mmc->bus_width is determined by mmc.c dynamically.
* TBD: Override it with this value?
*/
host->width = fdtdec_get_int(blob, node, "bus-width", 0);
if (!host->width)
debug("%s: no sdmmc width found\n", __func__);
/* These GPIOs are optional */
gpio_request_by_name_nodev(blob, node, "cd-gpios", 0, &host->cd_gpio,
GPIOD_IS_IN);
gpio_request_by_name_nodev(blob, node, "wp-gpios", 0, &host->wp_gpio,
GPIOD_IS_IN);
gpio_request_by_name_nodev(blob, node, "power-gpios", 0,
&host->pwr_gpio, GPIOD_IS_OUT);
*removablep = !fdtdec_get_bool(blob, node, "non-removable");
debug("%s: found controller at %p, width = %d, periph_id = %d\n",
__func__, host->reg, host->width,
#ifndef CONFIG_TEGRA186
host->mmc_id
#else
-1
#endif
);
return 0;
}
