/**
* The BPMP exposes multiple different services. We create a sub-device for
* each separate type of service, since each device must be of the appropriate
* UCLASS.
*/
static int tegra186_bpmp_bind(struct udevice *dev)
{
int ret;
struct udevice *child;
debug("%s(dev=%p)\n", __func__, dev);
ret = device_bind_driver_to_node(dev, "tegra186_clk", "tegra186_clk",
dev_of_offset(dev), &child);
if (ret)
return ret;
ret = device_bind_driver_to_node(dev, "tegra186_reset",
"tegra186_reset", dev_of_offset(dev),
&child);
if (ret)
return ret;
ret = device_bind_driver_to_node(dev, "tegra186_power_domain",
"tegra186_power_domain",
dev_of_offset(dev), &child);
if (ret)
return ret;
ret = dm_scan_fdt_dev(dev);
if (ret)
return ret;
return 0;
}
static int ks2_eth_bind_slaves(struct udevice *dev, int gbe, int *gbe_0)
{
const void *fdt = gd->fdt_blob;
struct udevice *sl_dev;
int interfaces;
int sec_slave;
int slave;
int ret;
char *slave_name;
interfaces = fdt_subnode_offset(fdt, gbe, "interfaces");
fdt_for_each_subnode(fdt, slave, interfaces) {
int slave_no;
slave_no = fdtdec_get_int(fdt, slave, "slave-port", -ENOENT);
if (slave_no == -ENOENT)
continue;
if (slave_no == 0) {
/* This is the current eth device */
*gbe_0 = slave;
} else {
/* Slave devices to be registered */
slave_name = malloc(20);
snprintf(slave_name, 20, "netcp@slave-%d", slave_no);
ret = device_bind_driver_to_node(dev, "eth_ks2_sl",
slave_name, slave,
&sl_dev);
if (ret) {
error("ks2_net - not able to bind slave interfaces\n");
return ret;
}
}
}
static int led_gpio_bind(struct udevice *parent)
{
struct udevice *dev;
ofnode node;
int ret;
dev_for_each_subnode(node, parent) {
struct led_uc_plat *uc_plat;
const char *label;
label = ofnode_read_string(node, "label");
if (!label) {
debug("%s: node %s has no label\n", __func__,
ofnode_get_name(node));
return -EINVAL;
}
ret = device_bind_driver_to_node(parent, "gpio_led",
ofnode_get_name(node),
node, &dev);
if (ret)
return ret;
uc_plat = dev_get_uclass_platdata(dev);
uc_plat->label = label;
}
return 0;
}
/* Find the I2C buses selected by this mux */
static int i2c_mux_post_bind(struct udevice *mux)
{
const void *blob = gd->fdt_blob;
int ret;
int offset;
debug("%s: %s\n", __func__, mux->name);
/*
* There is no compatible string in the sub-nodes, so we must manually
* bind these
*/
for (offset = fdt_first_subnode(blob, mux->of_offset);
offset > 0;
offset = fdt_next_subnode(blob, offset)) {
struct udevice *dev;
const char *name;
name = fdt_get_name(blob, offset, NULL);
ret = device_bind_driver_to_node(mux, "i2c_mux_bus_drv", name,
offset, &dev);
debug(" - bind ret=%d, %s\n", ret, dev ? dev->name : NULL);
if (ret)
return ret;
}
return 0;
}
static int syscon_probe_by_ofnode(ofnode node, struct udevice **devp)
{
struct udevice *dev, *parent;
int ret;
/* found node with "syscon" compatible, not bounded to SYSCON UCLASS */
if (!ofnode_device_is_compatible(node, "syscon")) {
dev_dbg(dev, "invalid compatible for syscon device\n");
return -EINVAL;
}
/* bound to driver with same ofnode or to root if not found */
if (device_find_global_by_ofnode(node, &parent))
parent = dm_root();
/* force bound to syscon class */
ret = device_bind_driver_to_node(parent, "syscon",
ofnode_get_name(node),
node, &dev);
if (ret) {
dev_dbg(dev, "unable to bound syscon device\n");
return ret;
}
ret = device_probe(dev);
if (ret) {
dev_dbg(dev, "unable to probe syscon device\n");
return ret;
}
*devp = dev;
return 0;
}
static int led_gpio_bind(struct udevice *parent)
{
const void *blob = gd->fdt_blob;
struct udevice *dev;
int node;
int ret;
for (node = fdt_first_subnode(blob, dev_of_offset(parent));
node > 0;
node = fdt_next_subnode(blob, node)) {
struct led_uclass_plat *uc_plat;
const char *label;
label = fdt_getprop(blob, node, "label", NULL);
if (!label) {
debug("%s: node %s has no label\n", __func__,
fdt_get_name(blob, node, NULL));
return -EINVAL;
}
ret = device_bind_driver_to_node(parent, "gpio_led",
fdt_get_name(blob, node, NULL),
node, &dev);
if (ret)
return ret;
uc_plat = dev_get_uclass_platdata(dev);
uc_plat->label = label;
}
return 0;
}
static int stm32_rcc_bind(struct udevice *dev)
{
int ret;
struct udevice *child;
debug("%s(dev=%p)\n", __func__, dev);
ret = device_bind_driver_to_node(dev, "stm32h7_rcc_clock",
"stm32h7_rcc_clock",
dev_ofnode(dev), &child);
if (ret)
return ret;
return device_bind_driver_to_node(dev, "stm32_rcc_reset",
"stm32_rcc_reset",
dev_ofnode(dev), &child);
}
static int uclass_cpu_init(struct uclass *uc)
{
struct udevice *dev;
int node;
int ret;
node = fdt_path_offset(gd->fdt_blob, "/cpus");
if (node < 0)
return 0;
ret = device_bind_driver_to_node(dm_root(), "cpu_bus", "cpus", node,
&dev);
return ret;
}
static int uclass_cpu_init(struct uclass *uc)
{
struct udevice *dev;
ofnode node;
int ret;
node = ofnode_path("/cpus");
if (!ofnode_valid(node))
return 0;
ret = device_bind_driver_to_node(dm_root(), "cpu_bus", "cpus", node,
&dev);
return ret;
}
fdt_for_each_subnode(fdt, slave, sec_slave) {
int slave_no;
slave_no = fdtdec_get_int(fdt, slave, "slave-port", -ENOENT);
if (slave_no == -ENOENT)
continue;
/* Slave devices to be registered */
slave_name = malloc(20);
snprintf(slave_name, 20, "netcp@slave-%d", slave_no);
ret = device_bind_driver_to_node(dev, "eth_ks2_sl", slave_name,
slave, &sl_dev);
if (ret) {
error("ks2_net - not able to bind slave interfaces\n");
return ret;
}
}
int rockchip_reset_bind(struct udevice *pdev, u32 reg_offset, u32 reg_number)
{
struct udevice *rst_dev;
struct rockchip_reset_priv *priv;
int ret;
ret = device_bind_driver_to_node(pdev, "rockchip_reset", "reset",
dev_ofnode(pdev), &rst_dev);
if (ret) {
debug("Warning: No rockchip reset driver: ret=%d\n", ret);
return ret;
}
priv = malloc(sizeof(struct rockchip_reset_priv));
priv->reset_reg_offset = reg_offset;
priv->reset_reg_num = reg_number;
rst_dev->priv = priv;
return 0;
}
/**
* pinconfig_post_bind() - post binding for PINCONFIG uclass
* Recursively bind its children as pinconfig devices.
*
* @dev: pinconfig device
* @return: 0 on success, or negative error code on failure
*/
static int pinconfig_post_bind(struct udevice *dev)
{
bool pre_reloc_only = !(gd->flags & GD_FLG_RELOC);
const char *name;
ofnode node;
int ret;
if (!dev_of_valid(dev))
return 0;
dev_for_each_subnode(node, dev) {
if (pre_reloc_only &&
!ofnode_pre_reloc(node))
continue;
/*
* If this node has "compatible" property, this is not
* a pin configuration node, but a normal device. skip.
*/
ofnode_get_property(node, "compatible", &ret);
if (ret >= 0)
continue;
/* If this node has "gpio-controller" property, skip */
if (ofnode_read_bool(node, "gpio-controller"))
continue;
if (ret != -FDT_ERR_NOTFOUND)
return ret;
name = ofnode_get_name(node);
if (!name)
return -EINVAL;
ret = device_bind_driver_to_node(dev, "pinconfig", name,
node, NULL);
if (ret)
return ret;
}
return 0;
}
static int ti_musb_wrapper_bind(struct udevice *parent)
{
const void *fdt = gd->fdt_blob;
int node;
int ret;
for (node = fdt_first_subnode(fdt, parent->of_offset); node > 0;
node = fdt_next_subnode(fdt, node)) {
struct udevice *dev;
const char *name = fdt_get_name(fdt, node, NULL);
enum usb_dr_mode dr_mode;
struct driver *drv;
if (strncmp(name, "usb@", 4))
continue;
dr_mode = usb_get_dr_mode(node);
switch (dr_mode) {
case USB_DR_MODE_PERIPHERAL:
/* Bind MUSB device */
break;
case USB_DR_MODE_HOST:
/* Bind MUSB host */
ret = device_bind_driver_to_node(parent, "ti-musb-host",
name, node, &dev);
if (ret) {
error("musb - not able to bind usb host node\n");
return ret;
}
break;
default:
break;
};
}
return 0;
}
/**
* at91_clk_sub_device_bind() - for the at91 clock driver
* Recursively bind its children as clk devices.
*
* @return: 0 on success, or negative error code on failure
*/
int at91_clk_sub_device_bind(struct udevice *dev, const char *drv_name)
{
const void *fdt = gd->fdt_blob;
int offset = dev_of_offset(dev);
bool pre_reloc_only = !(gd->flags & GD_FLG_RELOC);
const char *name;
int ret;
for (offset = fdt_first_subnode(fdt, offset);
offset > 0;
offset = fdt_next_subnode(fdt, offset)) {
if (pre_reloc_only &&
!fdt_getprop(fdt, offset, "u-boot,dm-pre-reloc", NULL))
continue;
/*
* If this node has "compatible" property, this is not
* a clock sub-node, but a normal device. skip.
*/
fdt_get_property(fdt, offset, "compatible", &ret);
if (ret >= 0)
continue;
if (ret != -FDT_ERR_NOTFOUND)
return ret;
name = fdt_get_name(fdt, offset, NULL);
if (!name)
return -EINVAL;
ret = device_bind_driver_to_node(dev, drv_name, name,
offset, NULL);
if (ret)
return ret;
}
return 0;
}
int device_bind_driver(struct udevice *parent, const char *drv_name,
const char *dev_name, struct udevice **devp)
{
return device_bind_driver_to_node(parent, drv_name, dev_name, -1, devp);
}