*/
#include <common.h>
+#include <asm/io.h>
#include <fdtdec.h>
+#include <fdt_support.h>
#include <malloc.h>
#include <dm/device.h>
#include <dm/device-internal.h>
DECLARE_GLOBAL_DATA_PTR;
-int device_bind(struct udevice *parent, const struct driver *drv,
- const char *name, void *platdata, int of_offset,
- struct udevice **devp)
+static int device_bind_common(struct udevice *parent, const struct driver *drv,
+ const char *name, void *platdata,
+ ulong driver_data, int of_offset,
+ uint of_platdata_size, struct udevice **devp)
{
struct udevice *dev;
struct uclass *uc;
INIT_LIST_HEAD(&dev->devres_head);
#endif
dev->platdata = platdata;
+ dev->driver_data = driver_data;
dev->name = name;
dev->of_offset = of_offset;
dev->parent = parent;
dev->seq = -1;
dev->req_seq = -1;
- if (CONFIG_IS_ENABLED(OF_CONTROL) && IS_ENABLED(CONFIG_DM_SEQ_ALIAS)) {
+ if (CONFIG_IS_ENABLED(OF_CONTROL) && CONFIG_IS_ENABLED(DM_SEQ_ALIAS)) {
/*
- * Some devices, such as a SPI bus, I2C bus and serial ports
- * are numbered using aliases.
- *
- * This is just a 'requested' sequence, and will be
- * resolved (and ->seq updated) when the device is probed.
- */
+ * Some devices, such as a SPI bus, I2C bus and serial ports
+ * are numbered using aliases.
+ *
+ * This is just a 'requested' sequence, and will be
+ * resolved (and ->seq updated) when the device is probed.
+ */
if (uc->uc_drv->flags & DM_UC_FLAG_SEQ_ALIAS) {
if (uc->uc_drv->name && of_offset != -1) {
fdtdec_get_alias_seq(gd->fdt_blob,
}
}
- if (!dev->platdata && drv->platdata_auto_alloc_size) {
- dev->flags |= DM_FLAG_ALLOC_PDATA;
- dev->platdata = calloc(1, drv->platdata_auto_alloc_size);
- if (!dev->platdata) {
- ret = -ENOMEM;
- goto fail_alloc1;
+ if (drv->platdata_auto_alloc_size) {
+ bool alloc = !platdata;
+
+ if (CONFIG_IS_ENABLED(OF_PLATDATA)) {
+ if (of_platdata_size) {
+ dev->flags |= DM_FLAG_OF_PLATDATA;
+ if (of_platdata_size <
+ drv->platdata_auto_alloc_size)
+ alloc = true;
+ }
+ }
+ if (alloc) {
+ dev->flags |= DM_FLAG_ALLOC_PDATA;
+ dev->platdata = calloc(1,
+ drv->platdata_auto_alloc_size);
+ if (!dev->platdata) {
+ ret = -ENOMEM;
+ goto fail_alloc1;
+ }
+ if (CONFIG_IS_ENABLED(OF_PLATDATA) && platdata) {
+ memcpy(dev->platdata, platdata,
+ of_platdata_size);
+ }
}
}
if (ret)
goto fail_child_post_bind;
}
+ if (uc->uc_drv->post_bind) {
+ ret = uc->uc_drv->post_bind(dev);
+ if (ret)
+ goto fail_uclass_post_bind;
+ }
if (parent)
dm_dbg("Bound device %s to %s\n", dev->name, parent->name);
return 0;
+fail_uclass_post_bind:
+ /* There is no child unbind() method, so no clean-up required */
fail_child_post_bind:
if (CONFIG_IS_ENABLED(DM_DEVICE_REMOVE)) {
if (drv->unbind && drv->unbind(dev)) {
return ret;
}
+int device_bind_with_driver_data(struct udevice *parent,
+ const struct driver *drv, const char *name,
+ ulong driver_data, int of_offset,
+ struct udevice **devp)
+{
+ return device_bind_common(parent, drv, name, NULL, driver_data,
+ of_offset, 0, devp);
+}
+
+int device_bind(struct udevice *parent, const struct driver *drv,
+ const char *name, void *platdata, int of_offset,
+ struct udevice **devp)
+{
+ return device_bind_common(parent, drv, name, platdata, 0, of_offset, 0,
+ devp);
+}
+
int device_bind_by_name(struct udevice *parent, bool pre_reloc_only,
const struct driver_info *info, struct udevice **devp)
{
struct driver *drv;
+ uint platdata_size = 0;
drv = lists_driver_lookup_name(info->name);
if (!drv)
if (pre_reloc_only && !(drv->flags & DM_FLAG_PRE_RELOC))
return -EPERM;
- return device_bind(parent, drv, info->name, (void *)info->platdata,
- -1, devp);
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+ platdata_size = info->platdata_size;
+#endif
+ return device_bind_common(parent, drv, info->name,
+ (void *)info->platdata, 0, -1, platdata_size, devp);
}
static void *alloc_priv(int size, uint flags)
return priv;
}
-int device_probe_child(struct udevice *dev, void *parent_priv)
+int device_probe(struct udevice *dev)
{
const struct driver *drv;
int size = 0;
ret = -ENOMEM;
goto fail;
}
- if (parent_priv)
- memcpy(dev->parent_priv, parent_priv, size);
}
ret = device_probe(dev->parent);
/*
* Process pinctrl for everything except the root device, and
- * continue regardless of the result of pinctrl.
+ * continue regardless of the result of pinctrl. Don't process pinctrl
+ * settings for pinctrl devices since the device may not yet be
+ * probed.
*/
- if (dev->parent)
+ if (dev->parent && device_get_uclass_id(dev) != UCLASS_PINCTRL)
pinctrl_select_state(dev, "default");
ret = uclass_pre_probe_device(dev);
if (ret)
goto fail_uclass;
+ if (dev->parent && device_get_uclass_id(dev) == UCLASS_PINCTRL)
+ pinctrl_select_state(dev, "default");
+
return 0;
fail_uclass:
if (device_remove(dev)) {
return ret;
}
-int device_probe(struct udevice *dev)
-{
- return device_probe_child(dev, NULL);
-}
-
void *dev_get_platdata(struct udevice *dev)
{
if (!dev) {
return dev->uclass_priv;
}
-void *dev_get_parentdata(struct udevice *dev)
+void *dev_get_parent_priv(struct udevice *dev)
{
if (!dev) {
dm_warn("%s: null device\n", __func__);
return dev->uclass->uc_drv->name;
}
-fdt_addr_t dev_get_addr(struct udevice *dev)
+fdt_addr_t dev_get_addr_index(struct udevice *dev, int index)
{
-#if CONFIG_IS_ENABLED(OF_CONTROL)
+#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
fdt_addr_t addr;
- addr = fdtdec_get_addr_size_auto_parent(gd->fdt_blob,
- dev->parent->of_offset,
- dev->of_offset, "reg",
- 0, NULL);
- if (CONFIG_IS_ENABLED(SIMPLE_BUS) && addr != FDT_ADDR_T_NONE) {
- if (device_get_uclass_id(dev->parent) == UCLASS_SIMPLE_BUS)
- addr = simple_bus_translate(dev->parent, addr);
+ if (CONFIG_IS_ENABLED(OF_TRANSLATE)) {
+ const fdt32_t *reg;
+ int len = 0;
+ int na, ns;
+
+ na = fdt_address_cells(gd->fdt_blob, dev->parent->of_offset);
+ if (na < 1) {
+ debug("bad #address-cells\n");
+ return FDT_ADDR_T_NONE;
+ }
+
+ ns = fdt_size_cells(gd->fdt_blob, dev->parent->of_offset);
+ if (ns < 0) {
+ debug("bad #size-cells\n");
+ return FDT_ADDR_T_NONE;
+ }
+
+ reg = fdt_getprop(gd->fdt_blob, dev->of_offset, "reg", &len);
+ if (!reg || (len <= (index * sizeof(fdt32_t) * (na + ns)))) {
+ debug("Req index out of range\n");
+ return FDT_ADDR_T_NONE;
+ }
+
+ reg += index * (na + ns);
+
+ /*
+ * Use the full-fledged translate function for complex
+ * bus setups.
+ */
+ addr = fdt_translate_address((void *)gd->fdt_blob,
+ dev->of_offset, reg);
+ } else {
+ /*
+ * Use the "simple" translate function for less complex
+ * bus setups.
+ */
+ addr = fdtdec_get_addr_size_auto_parent(gd->fdt_blob,
+ dev->parent->of_offset,
+ dev->of_offset, "reg",
+ index, NULL, false);
+ if (CONFIG_IS_ENABLED(SIMPLE_BUS) && addr != FDT_ADDR_T_NONE) {
+ if (device_get_uclass_id(dev->parent) ==
+ UCLASS_SIMPLE_BUS)
+ addr = simple_bus_translate(dev->parent, addr);
+ }
}
+ /*
+ * Some platforms need a special address translation. Those
+ * platforms (e.g. mvebu in SPL) can configure a translation
+ * offset in the DM by calling dm_set_translation_offset() that
+ * will get added to all addresses returned by dev_get_addr().
+ */
+ addr += dm_get_translation_offset();
+
return addr;
#else
return FDT_ADDR_T_NONE;
#endif
}
+fdt_addr_t dev_get_addr_name(struct udevice *dev, const char *name)
+{
+#if CONFIG_IS_ENABLED(OF_CONTROL)
+ int index;
+
+ index = fdt_find_string(gd->fdt_blob, dev->of_offset, "reg-names",
+ name);
+ if (index < 0)
+ return index;
+
+ return dev_get_addr_index(dev, index);
+#else
+ return FDT_ADDR_T_NONE;
+#endif
+}
+
+fdt_addr_t dev_get_addr(struct udevice *dev)
+{
+ return dev_get_addr_index(dev, 0);
+}
+
+void *dev_get_addr_ptr(struct udevice *dev)
+{
+ return (void *)(uintptr_t)dev_get_addr_index(dev, 0);
+}
+
+void *dev_map_physmem(struct udevice *dev, unsigned long size)
+{
+ fdt_addr_t addr = dev_get_addr(dev);
+
+ if (addr == FDT_ADDR_T_NONE)
+ return NULL;
+
+ return map_physmem(addr, size, MAP_NOCACHE);
+}
+
bool device_has_children(struct udevice *dev)
{
return !list_empty(&dev->child_head);
return list_is_last(&dev->sibling_node, &parent->child_head);
}
+void device_set_name_alloced(struct udevice *dev)
+{
+ dev->flags |= DM_FLAG_NAME_ALLOCED;
+}
+
int device_set_name(struct udevice *dev, const char *name)
{
name = strdup(name);
if (!name)
return -ENOMEM;
dev->name = name;
+ device_set_name_alloced(dev);
return 0;
}
+
+bool of_device_is_compatible(struct udevice *dev, const char *compat)
+{
+ const void *fdt = gd->fdt_blob;
+
+ return !fdt_node_check_compatible(fdt, dev->of_offset, compat);
+}
+
+bool of_machine_is_compatible(const char *compat)
+{
+ const void *fdt = gd->fdt_blob;
+
+ return !fdt_node_check_compatible(fdt, 0, compat);
+}
projects / karo-tx-uboot.git / blobdiff