Current dev_read_*() API lacks support to get address and size
of a "reg" property by name or index. Add support for the same.
Livetree support has been added but not tested.
Signed-off-by: Sekhar Nori <nsek...@ti.com>
---
drivers/core/fdtaddr.c | 17 +++++++++++++++++
drivers/core/read.c | 20 ++++++++++++++++++++
include/dm/fdtaddr.h | 18 ++++++++++++++++++
include/dm/read.h | 41 +++++++++++++++++++++++++++++++++++++++++
4 files changed, 96 insertions(+)
diff --git a/drivers/core/fdtaddr.c b/drivers/core/fdtaddr.c
index c2873861dacd..6850003a287b 100644
--- a/drivers/core/fdtaddr.c
+++ b/drivers/core/fdtaddr.c
@@ -129,6 +129,23 @@ fdt_addr_t devfdt_get_addr_name(struct udevice *dev, const
char *name)
#endif
}
+fdt_addr_t devfdt_get_addr_size_name(struct udevice *dev, const char *name,
+ fdt_size_t *size)
+{
+#if CONFIG_IS_ENABLED(OF_CONTROL)
+ int index;
+
+ index = fdt_stringlist_search(gd->fdt_blob, dev_of_offset(dev),
+ "reg-names", name);
+ if (index < 0)
+ return index;
+
+ return devfdt_get_addr_size_index(dev, index, size);
+#else
+ return FDT_ADDR_T_NONE;
+#endif
+}
+
fdt_addr_t devfdt_get_addr(struct udevice *dev)
{
return devfdt_get_addr_index(dev, 0);
diff --git a/drivers/core/read.c b/drivers/core/read.c
index 6bda077a34b9..7c6944eeea84 100644
--- a/drivers/core/read.c
+++ b/drivers/core/read.c
@@ -82,6 +82,15 @@ fdt_addr_t dev_read_addr_index(struct udevice *dev, int
index)
return devfdt_get_addr_index(dev, index);
}
+fdt_addr_t dev_read_addr_size_index(struct udevice *dev, int index,
+ fdt_size_t *size)
+{
+ if (ofnode_is_np(dev_ofnode(dev)))
+ return ofnode_get_add_size_index(dev_ofnode(dev), index, size);
+ else
+ return devfdt_get_addr_size_index(dev, index, size);
+}
+
void *dev_remap_addr_index(struct udevice *dev, int index)
{
fdt_addr_t addr = dev_read_addr_index(dev, index);
@@ -102,6 +111,17 @@ fdt_addr_t dev_read_addr_name(struct udevice *dev, const
char *name)
return dev_read_addr_index(dev, index);
}
+fdt_addr_t dev_read_addr_size_name(struct udevice *dev, const char *name,
+ fdt_size_t *size)
+{
+ int index = dev_read_stringlist_search(dev, "reg-names", name);
+
+ if (index < 0)
+ return FDT_ADDR_T_NONE;
+ else
+ return dev_read_addr_size_index(dev, index, size);
+}
+
void *dev_remap_addr_name(struct udevice *dev, const char *name)
{
fdt_addr_t addr = dev_read_addr_name(dev, name);
diff --git a/include/dm/fdtaddr.h b/include/dm/fdtaddr.h
index 3bc2599b6cbd..57b326cb3362 100644
--- a/include/dm/fdtaddr.h
+++ b/include/dm/fdtaddr.h
@@ -120,4 +120,22 @@ fdt_addr_t devfdt_get_addr_size_index(struct udevice *dev,
int index,
*/
fdt_addr_t devfdt_get_addr_name(struct udevice *dev, const char *name);
+/**
+ * devfdt_get_addr_size_name() - Get the reg property and its size for a
device,
+ * indexed by name
+ *
+ * Returns the address and size specified in the 'reg' property of a device.
+ *
+ * @dev: Pointer to a device
+ * @name: the 'reg' property can hold a list of <addr, size> pairs, with the
+ * 'reg-names' property providing named-based identification. @index
+ * indicates the value to search for in 'reg-names'.
+ * @size: Pointer to size variable - this function returns the size
+ * specified in the 'reg' property here
+ *
+ * @return addr
+ */
+fdt_addr_t devfdt_get_addr_size_name(struct udevice *dev, const char *name,
+ fdt_size_t *size);
+
#endif
diff --git a/include/dm/read.h b/include/dm/read.h
index 60b727cbd821..5c38fcc922ae 100644
--- a/include/dm/read.h
+++ b/include/dm/read.h
@@ -144,6 +144,19 @@ int dev_read_size(struct udevice *dev, const char
*propname);
*/
fdt_addr_t dev_read_addr_index(struct udevice *dev, int index);
+/**
+ * dev_read_addr_size_index() - Get the indexed reg property of a device
+ *
+ * @dev: Device to read from
+ * @index: the 'reg' property can hold a list of <addr, size> pairs
+ * and @index is used to select which one is required
+ * @size: place to put size value (on success)
+ *
+ * @return address or FDT_ADDR_T_NONE if not found
+ */
+fdt_addr_t dev_read_addr_size_index(struct udevice *dev, int index,
+ fdt_size_t *size);
+
/**
* dev_remap_addr_index() - Get the indexed reg property of a device
* as a memory-mapped I/O pointer
@@ -168,6 +181,20 @@ void *dev_remap_addr_index(struct udevice *dev, int index);
*/
fdt_addr_t dev_read_addr_name(struct udevice *dev, const char* name);
+/**
+ * dev_read_addr_size_name() - Get the reg property of a device, indexed by
name
+ *
+ * @dev: Device to read from
+ * @name: the 'reg' property can hold a list of <addr, size> pairs, with the
+ * 'reg-names' property providing named-based identification. @index
+ * indicates the value to search for in 'reg-names'.
+ * @size: place to put size value (on success)
+ *
+ * @return address or FDT_ADDR_T_NONE if not found
+ */
+fdt_addr_t dev_read_addr_size_name(struct udevice *dev, const char *name,
+ fdt_size_t *size);
+
/**
* dev_remap_addr_name() - Get the reg property of a device, indexed by name,
* as a memory-mapped I/O pointer
@@ -588,12 +615,26 @@ static inline fdt_addr_t dev_read_addr_index(struct
udevice *dev, int index)
return devfdt_get_addr_index(dev, index);
}
+static inline fdt_addr_t dev_read_addr_size_index(struct udevice *dev,
+ int index,
+ fdt_size_t *size)
+{
+ return devfdt_get_addr_size_index(dev, index, size);
+}
+
static inline fdt_addr_t dev_read_addr_name(struct udevice *dev,
const char *name)
{
return devfdt_get_addr_name(dev, name);
}
+static inline fdt_addr_t dev_read_addr_size_name(struct udevice *dev,
+ const char *name,
+ fdt_size_t *size)
+{
+ return devfdt_get_addr_size_name(dev, name, size);
+}
+
static inline fdt_addr_t dev_read_addr(struct udevice *dev)
{
return devfdt_get_addr(dev);
--
2.16.2
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