int board_late_init(void)
{
struct gpio_desc gpio = {};
int node;
node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,led1");
if (node < 0)
return -1;
gpio_request_by_name_nodev(offset_to_ofnode(node), "led-gpio", 0, &gpio,
GPIOD_IS_OUT);
if (dm_gpio_is_valid(&gpio)) {
dm_gpio_set_value(&gpio, 0);
mdelay(10);
dm_gpio_set_value(&gpio, 1);
}
/* read button 1*/
node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,button1");
if (node < 0)
return -1;
gpio_request_by_name_nodev(offset_to_ofnode(node), "button-gpio", 0,
&gpio, GPIOD_IS_IN);
if (dm_gpio_is_valid(&gpio)) {
if (dm_gpio_get_value(&gpio))
puts("usr button is at HIGH LEVEL\n");
else
puts("usr button is at LOW LEVEL\n");
}
return 0;
}
void reset_misc(void)
{
struct gpio_desc gpio = {};
int node;
node = fdt_node_offset_by_compatible(gd->fdt_blob, 0,
"samsung,emmc-reset");
if (node < 0)
return;
gpio_request_by_name_nodev(gd->fdt_blob, node, "reset-gpio", 0, &gpio,
GPIOD_IS_OUT);
if (dm_gpio_is_valid(&gpio)) {
/*
* Reset eMMC
*
* FIXME: Need to optimize delay time. Minimum 1usec pulse is
* required by 'JEDEC Standard No.84-A441' (eMMC)
* document but real delay time is expected to greater
* than 1usec.
*/
dm_gpio_set_value(&gpio, 0);
mdelay(10);
dm_gpio_set_value(&gpio, 1);
}
}
/* Check for vol- button - if pressed - stop autoboot */
int misc_init_r(void)
{
struct udevice *pon;
struct gpio_desc resin;
int node, ret;
ret = uclass_get_device_by_name(UCLASS_GPIO, "pm8916_pon@800", &pon);
if (ret < 0) {
printf("Failed to find PMIC pon node. Check device tree\n");
return 0;
}
node = fdt_subnode_offset(gd->fdt_blob, dev_of_offset(pon),
"key_vol_down");
if (node < 0) {
printf("Failed to find key_vol_down node. Check device tree\n");
return 0;
}
if (gpio_request_by_name_nodev(offset_to_ofnode(node), "gpios", 0,
&resin, 0)) {
printf("Failed to request key_vol_down button.\n");
return 0;
}
if (dm_gpio_get_value(&resin)) {
env_set("bootdelay", "-1");
printf("Power button pressed - dropping to console.\n");
}
return 0;
}
static void board_enable_audio_codec(void)
{
int node, ret;
struct gpio_desc en_gpio;
node = fdtdec_next_compatible(gd->fdt_blob, 0,
COMPAT_SAMSUNG_EXYNOS5_SOUND);
if (node <= 0)
return;
ret = gpio_request_by_name_nodev(gd->fdt_blob, node,
"codec-enable-gpio", 0, &en_gpio,
GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
if (ret == -FDT_ERR_NOTFOUND)
return;
/* Turn on the GPIO which connects to the codec's "enable" line. */
gpio_set_pull(gpio_get_number(&en_gpio), S5P_GPIO_PULL_NONE);
#ifdef CONFIG_SOUND_MAX98095
/* Enable MAX98095 Codec */
gpio_request(EXYNOS5_GPIO_X17, "max98095_enable");
gpio_direction_output(EXYNOS5_GPIO_X17, 1);
gpio_set_pull(EXYNOS5_GPIO_X17, S5P_GPIO_PULL_NONE);
#endif
}
/**
* Decode the panel information from the fdt.
*
* @param blob fdt blob
* @param config structure to store fdt config into
* @return 0 if ok, -ve on error
*/
static int fdt_decode_lcd(const void *blob, struct fdt_panel_config *config)
{
int display_node;
disp_config = tegra_display_get_config();
if (!disp_config) {
debug("%s: Display controller is not configured\n", __func__);
return -1;
}
display_node = disp_config->panel_node;
if (display_node < 0) {
debug("%s: No panel configuration available\n", __func__);
return -1;
}
config->pwm_channel = pwm_request(blob, display_node, "nvidia,pwm");
if (config->pwm_channel < 0) {
debug("%s: Unable to request PWM channel\n", __func__);
return -1;
}
config->cache_type = fdtdec_get_int(blob, display_node,
"nvidia,cache-type",
FDT_LCD_CACHE_WRITE_BACK_FLUSH);
/* These GPIOs are all optional */
gpio_request_by_name_nodev(blob, display_node,
"nvidia,backlight-enable-gpios", 0,
&config->backlight_en, GPIOD_IS_OUT);
gpio_request_by_name_nodev(blob, display_node,
"nvidia,lvds-shutdown-gpios", 0,
&config->lvds_shutdown, GPIOD_IS_OUT);
gpio_request_by_name_nodev(blob, display_node,
"nvidia,backlight-vdd-gpios", 0,
&config->backlight_vdd, GPIOD_IS_OUT);
gpio_request_by_name_nodev(blob, display_node,
"nvidia,panel-vdd-gpios", 0,
&config->panel_vdd, GPIOD_IS_OUT);
return fdtdec_get_int_array(blob, display_node, "nvidia,panel-timings",
config->panel_timings, FDT_LCD_TIMINGS);
}
int gpio_request_by_name(struct udevice *dev, const char *list_name, int index,
struct gpio_desc *desc, int flags)
{
/*
* This isn't ideal since we don't use dev->name in the debug()
* calls in gpio_request_by_name(), but we can do this until
* gpio_request_by_name_nodev() can be dropped.
*/
return gpio_request_by_name_nodev(gd->fdt_blob, dev->of_offset,
list_name, index, desc, flags);
}
/* Somewhat torturous method */
static int get_backlight_info(const void *blob, struct gpio_desc *vdd,
struct gpio_desc *enable, int *pwmp)
{
int sor, panel, backlight, power;
const u32 *prop;
int len;
int ret;
*pwmp = 0;
sor = fdtdec_next_compatible(blob, 0, COMPAT_NVIDIA_TEGRA124_SOR);
if (sor < 0)
return -ENOENT;
panel = fdtdec_lookup_phandle(blob, sor, "nvidia,panel");
if (panel < 0)
return -ENOENT;
backlight = fdtdec_lookup_phandle(blob, panel, "backlight");
if (backlight < 0)
return -ENOENT;
ret = gpio_request_by_name_nodev(blob, backlight, "enable-gpios", 0,
enable, GPIOD_IS_OUT);
if (ret)
return ret;
prop = fdt_getprop(blob, backlight, "pwms", &len);
if (!prop || len != 3 * sizeof(u32))
return -EINVAL;
*pwmp = fdt32_to_cpu(prop[1]);
power = fdtdec_lookup_phandle(blob, backlight, "power-supply");
if (power < 0)
return -ENOENT;
ret = gpio_request_by_name_nodev(blob, power, "gpio", 0, vdd,
GPIOD_IS_OUT);
if (ret)
goto err;
return 0;
err:
dm_gpio_free(NULL, enable);
return ret;
}
/**
* 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;
}
static int vf_usb_ofdata_to_platdata(struct udevice *dev)
{
struct ehci_vf_priv_data *priv = dev_get_priv(dev);
const void *dt_blob = gd->fdt_blob;
int node = dev_of_offset(dev);
const char *mode;
priv->portnr = dev->seq;
priv->ehci = (struct usb_ehci *)devfdt_get_addr(dev);
mode = fdt_getprop(dt_blob, node, "dr_mode", NULL);
if (mode) {
if (0 == strcmp(mode, "host")) {
priv->dr_mode = DR_MODE_HOST;
priv->init_type = USB_INIT_HOST;
} else if (0 == strcmp(mode, "peripheral")) {
priv->dr_mode = DR_MODE_DEVICE;
priv->init_type = USB_INIT_DEVICE;
} else if (0 == strcmp(mode, "otg")) {
priv->dr_mode = DR_MODE_OTG;
/*
* We set init_type to device by default when OTG
* mode is requested. If a valid gpio is provided
* we will switch the init_type based on the state
* of the gpio pin.
*/
priv->init_type = USB_INIT_DEVICE;
} else {
debug("%s: Cannot decode dr_mode '%s'\n",
__func__, mode);
return -EINVAL;
}
} else {
priv->dr_mode = DR_MODE_HOST;
priv->init_type = USB_INIT_HOST;
}
if (priv->dr_mode == DR_MODE_OTG) {
gpio_request_by_name_nodev(offset_to_ofnode(node),
"fsl,cdet-gpio", 0, &priv->cdet_gpio,
GPIOD_IS_IN);
if (dm_gpio_is_valid(&priv->cdet_gpio)) {
if (dm_gpio_get_value(&priv->cdet_gpio))
priv->init_type = USB_INIT_DEVICE;
else
priv->init_type = USB_INIT_HOST;
}
}
return 0;
}
static int pic32_spi_probe(struct udevice *bus)
{
struct pic32_spi_priv *priv = dev_get_priv(bus);
struct dm_spi_bus *dm_spi = dev_get_uclass_priv(bus);
struct udevice *clkdev;
fdt_addr_t addr;
fdt_size_t size;
int ret;
debug("%s: %d, bus: %i\n", __func__, __LINE__, bus->seq);
addr = fdtdec_get_addr_size(gd->fdt_blob, bus->of_offset, "reg", &size);
if (addr == FDT_ADDR_T_NONE)
return -EINVAL;
priv->regs = ioremap(addr, size);
if (!priv->regs)
return -EINVAL;
dm_spi->max_hz = fdtdec_get_int(gd->fdt_blob, bus->of_offset,
"spi-max-frequency", 250000000);
/* get clock rate */
ret = clk_get_by_index(bus, 0, &clkdev);
if (ret < 0) {
printf("pic32-spi: error, clk not found\n");
return ret;
}
priv->clk_rate = clk_get_periph_rate(clkdev, ret);
/* initialize HW */
pic32_spi_hw_init(priv);
/* set word len */
pic32_spi_set_word_size(priv, SPI_DEFAULT_WORDLEN);
/* PIC32 SPI controller can automatically drive /CS during transfer
* depending on fifo fill-level. /CS will stay asserted as long as
* TX fifo is non-empty, else will be deasserted confirming completion
* of the ongoing transfer. To avoid this sort of error we will drive
* /CS manually by toggling cs-gpio pins.
*/
ret = gpio_request_by_name_nodev(gd->fdt_blob, bus->of_offset,
"cs-gpios", 0,
&priv->cs_gpio, GPIOD_IS_OUT);
if (ret) {
printf("pic32-spi: error, cs-gpios not found\n");
return ret;
}
return 0;
}
static int pic32_eth_probe(struct udevice *dev)
{
struct eth_pdata *pdata = dev_get_platdata(dev);
struct pic32eth_dev *priv = dev_get_priv(dev);
const char *phy_mode;
void __iomem *iobase;
fdt_addr_t addr;
fdt_size_t size;
int offset = 0;
int phy_addr = -1;
addr = fdtdec_get_addr_size(gd->fdt_blob, dev_of_offset(dev), "reg",
&size);
if (addr == FDT_ADDR_T_NONE)
return -EINVAL;
iobase = ioremap(addr, size);
pdata->iobase = (phys_addr_t)addr;
/* get phy mode */
pdata->phy_interface = -1;
phy_mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "phy-mode",
NULL);
if (phy_mode)
pdata->phy_interface = phy_get_interface_by_name(phy_mode);
if (pdata->phy_interface == -1) {
debug("%s: Invalid PHY interface '%s'\n", __func__, phy_mode);
return -EINVAL;
}
/* get phy addr */
offset = fdtdec_lookup_phandle(gd->fdt_blob, dev_of_offset(dev),
"phy-handle");
if (offset > 0)
phy_addr = fdtdec_get_int(gd->fdt_blob, offset, "reg", -1);
/* phy reset gpio */
gpio_request_by_name_nodev(dev_ofnode(dev), "reset-gpios", 0,
&priv->rst_gpio, GPIOD_IS_OUT);
priv->phyif = pdata->phy_interface;
priv->phy_addr = phy_addr;
priv->ectl_regs = iobase;
priv->emac_regs = iobase + PIC32_EMAC1CFG1;
pic32_mii_init(priv);
return pic32_phy_init(priv, dev);
}
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;
gpio_request_by_name_nodev(blob, node, "pwr-gpios", 0, &host->pwr_gpio,
GPIOD_IS_OUT);
gpio_request_by_name_nodev(blob, node, "cd-gpios", 0, &host->cd_gpio,
GPIOD_IS_IN);
return 0;
}
static int exynos_usb_parse_dt(const void *blob, struct exynos_ehci *exynos)
{
fdt_addr_t addr;
unsigned int node;
int depth;
node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS_EHCI);
if (node <= 0) {
debug("EHCI: Can't get device node for ehci\n");
return -ENODEV;
}
/*
* Get the base address for EHCI controller from the device node
*/
addr = fdtdec_get_addr(blob, node, "reg");
if (addr == FDT_ADDR_T_NONE) {
debug("Can't get the EHCI register address\n");
return -ENXIO;
}
exynos->hcd = (struct ehci_hccr *)addr;
/* Vbus gpio */
gpio_request_by_name_nodev(blob, node, "samsung,vbus-gpio", 0,
&exynos->vbus_gpio, GPIOD_IS_OUT);
depth = 0;
node = fdtdec_next_compatible_subnode(blob, node,
COMPAT_SAMSUNG_EXYNOS_USB_PHY, &depth);
if (node <= 0) {
debug("EHCI: Can't get device node for usb-phy controller\n");
return -ENODEV;
}
/*
* Get the base address for usbphy from the device node
*/
exynos->usb = (struct exynos_usb_phy *)fdtdec_get_addr(blob, node,
"reg");
if (exynos->usb == NULL) {
debug("Can't get the usbphy register address\n");
return -ENXIO;
}
return 0;
}
static void rk3399_force_power_on_reset(void)
{
ofnode node;
struct gpio_desc sysreset_gpio;
debug("%s: trying to force a power-on reset\n", __func__);
node = ofnode_path("/config");
if (!ofnode_valid(node)) {
debug("%s: no /config node?\n", __func__);
return;
}
if (gpio_request_by_name_nodev(node, "sysreset-gpio", 0,
&sysreset_gpio, GPIOD_IS_OUT)) {
debug("%s: could not find a /config/sysreset-gpio\n", __func__);
return;
}
dm_gpio_set_value(&sysreset_gpio, 1);
}
static int tegra_lcd_ofdata_to_platdata(struct udevice *dev)
{
struct tegra_lcd_priv *priv = dev_get_priv(dev);
struct fdtdec_phandle_args args;
const void *blob = gd->fdt_blob;
int node = dev->of_offset;
int front, back, ref;
int panel_node;
int rgb;
int bpp, bit;
int ret;
priv->disp = (struct disp_ctlr *)dev_get_addr(dev);
if (!priv->disp) {
debug("%s: No display controller address\n", __func__);
return -EINVAL;
}
rgb = fdt_subnode_offset(blob, node, "rgb");
panel_node = fdtdec_lookup_phandle(blob, rgb, "nvidia,panel");
if (panel_node < 0) {
debug("%s: Cannot find panel information\n", __func__);
return -EINVAL;
}
priv->width = fdtdec_get_int(blob, panel_node, "xres", -1);
priv->height = fdtdec_get_int(blob, panel_node, "yres", -1);
priv->pixel_clock = fdtdec_get_int(blob, panel_node, "clock", 0);
if (!priv->pixel_clock || priv->width == -1 || priv->height == -1) {
debug("%s: Pixel parameters missing\n", __func__);
return -EINVAL;
}
back = fdtdec_get_int(blob, panel_node, "left-margin", -1);
front = fdtdec_get_int(blob, panel_node, "right-margin", -1);
ref = fdtdec_get_int(blob, panel_node, "hsync-len", -1);
if ((back | front | ref) == -1) {
debug("%s: Horizontal parameters missing\n", __func__);
return -EINVAL;
}
/* Use a ref-to-sync of 1 always, and take this from the front porch */
priv->horiz_timing[FDT_LCD_TIMING_REF_TO_SYNC] = 1;
priv->horiz_timing[FDT_LCD_TIMING_SYNC_WIDTH] = ref;
priv->horiz_timing[FDT_LCD_TIMING_BACK_PORCH] = back;
priv->horiz_timing[FDT_LCD_TIMING_FRONT_PORCH] = front -
priv->horiz_timing[FDT_LCD_TIMING_REF_TO_SYNC];
debug_timing("horiz", priv->horiz_timing);
back = fdtdec_get_int(blob, panel_node, "upper-margin", -1);
front = fdtdec_get_int(blob, panel_node, "lower-margin", -1);
ref = fdtdec_get_int(blob, panel_node, "vsync-len", -1);
if ((back | front | ref) == -1) {
debug("%s: Vertical parameters missing\n", __func__);
return -EINVAL;
}
priv->vert_timing[FDT_LCD_TIMING_REF_TO_SYNC] = 1;
priv->vert_timing[FDT_LCD_TIMING_SYNC_WIDTH] = ref;
priv->vert_timing[FDT_LCD_TIMING_BACK_PORCH] = back;
priv->vert_timing[FDT_LCD_TIMING_FRONT_PORCH] = front -
priv->vert_timing[FDT_LCD_TIMING_REF_TO_SYNC];
debug_timing("vert", priv->vert_timing);
bpp = fdtdec_get_int(blob, panel_node, "nvidia,bits-per-pixel", -1);
bit = ffs(bpp) - 1;
if (bpp == (1 << bit))
priv->log2_bpp = bit;
else
priv->log2_bpp = bpp;
if (bpp == -1) {
debug("%s: Pixel bpp parameters missing\n", __func__);
return -EINVAL;
}
if (fdtdec_parse_phandle_with_args(blob, panel_node, "nvidia,pwm",
"#pwm-cells", 0, 0, &args)) {
debug("%s: Unable to decode PWM\n", __func__);
return -EINVAL;
}
ret = uclass_get_device_by_of_offset(UCLASS_PWM, args.node, &priv->pwm);
if (ret) {
debug("%s: Unable to find PWM\n", __func__);
return -EINVAL;
}
priv->pwm_channel = args.args[0];
priv->cache_type = fdtdec_get_int(blob, panel_node, "nvidia,cache-type",
FDT_LCD_CACHE_WRITE_BACK_FLUSH);
/* These GPIOs are all optional */
gpio_request_by_name_nodev(blob, panel_node,
"nvidia,backlight-enable-gpios", 0,
&priv->backlight_en, GPIOD_IS_OUT);
gpio_request_by_name_nodev(blob, panel_node,
"nvidia,lvds-shutdown-gpios", 0,
&priv->lvds_shutdown, GPIOD_IS_OUT);
gpio_request_by_name_nodev(blob, panel_node,
"nvidia,backlight-vdd-gpios", 0,
&priv->backlight_vdd, GPIOD_IS_OUT);
gpio_request_by_name_nodev(blob, panel_node,
"nvidia,panel-vdd-gpios", 0,
&priv->panel_vdd, GPIOD_IS_OUT);
if (fdtdec_get_int_array(blob, panel_node, "nvidia,panel-timings",
priv->panel_timings, FDT_LCD_TIMINGS))
return -EINVAL;
return 0;
}
int board_prepare_usb(enum usb_init_type type)
{
static struct udevice *pmic_gpio;
static struct gpio_desc hub_reset, usb_sel;
int ret = 0, node;
if (!pmic_gpio) {
ret = uclass_get_device_by_name(UCLASS_GPIO,
"pm8916_gpios@c000",
&pmic_gpio);
if (ret < 0) {
printf("Failed to find pm8916_gpios@c000 node.\n");
return ret;
}
}
/* Try to request gpios needed to start usb host on dragonboard */
if (!dm_gpio_is_valid(&hub_reset)) {
node = fdt_subnode_offset(gd->fdt_blob,
dev_of_offset(pmic_gpio),
"usb_hub_reset_pm");
if (node < 0) {
printf("Failed to find usb_hub_reset_pm dt node.\n");
return node;
}
ret = gpio_request_by_name_nodev(offset_to_ofnode(node),
"gpios", 0, &hub_reset, 0);
if (ret < 0) {
printf("Failed to request usb_hub_reset_pm gpio.\n");
return ret;
}
}
if (!dm_gpio_is_valid(&usb_sel)) {
node = fdt_subnode_offset(gd->fdt_blob,
dev_of_offset(pmic_gpio),
"usb_sw_sel_pm");
if (node < 0) {
printf("Failed to find usb_sw_sel_pm dt node.\n");
return 0;
}
ret = gpio_request_by_name_nodev(offset_to_ofnode(node),
"gpios", 0, &usb_sel, 0);
if (ret < 0) {
printf("Failed to request usb_sw_sel_pm gpio.\n");
return ret;
}
}
if (type == USB_INIT_HOST) {
/* Start USB Hub */
dm_gpio_set_dir_flags(&hub_reset,
GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
mdelay(100);
/* Switch usb to host connectors */
dm_gpio_set_dir_flags(&usb_sel,
GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
mdelay(100);
} else { /* Device */
/* Disable hub */
dm_gpio_set_dir_flags(&hub_reset, GPIOD_IS_OUT);
/* Switch back to device connector */
dm_gpio_set_dir_flags(&usb_sel, GPIOD_IS_OUT);
}
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;
}
