[U-Boot] [PATCH v2 01/12] dm: core: implement dev_map_phsymem()
Vignesh R
vigneshr at ti.com
Mon Apr 25 12:59:55 CEST 2016
This API helps to map physical register addresss pace of device to
virtual address space easily. Its just a wrapper around map_physmem()
with MAP_NOCACHE flag.
Signed-off-by: Vignesh R <vigneshr at ti.com>
Suggested-by: Simon Glass <sjg at chromium.org>
---
v2: New patch
drivers/core/device.c | 5 +++++
include/dm/device.h | 10 ++++++++++
2 files changed, 15 insertions(+)
diff --git a/drivers/core/device.c b/drivers/core/device.c
index 269087a084cf..61af70efcef7 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -673,6 +673,11 @@ fdt_addr_t dev_get_addr(struct udevice *dev)
return dev_get_addr_index(dev, 0);
}
+void *dev_map_physmem(struct udevice *dev, unsigned long size)
+{
+ return map_physmem(dev_get_addr(dev), size, MAP_NOCACHE);
+}
+
bool device_has_children(struct udevice *dev)
{
return !list_empty(&dev->child_head);
diff --git a/include/dm/device.h b/include/dm/device.h
index dad7591dfacb..0d3e3ed34870 100644
--- a/include/dm/device.h
+++ b/include/dm/device.h
@@ -454,6 +454,16 @@ int device_find_next_child(struct udevice **devp);
fdt_addr_t dev_get_addr(struct udevice *dev);
/**
+ * dev_map_physmem() - Map bus memory into CPU space
+ *
+ * @dev: Pointer to device
+ * @size: size of the memory to map
+ *
+ * @return addr
+ */
+void *dev_map_physmem(struct udevice *dev, unsigned long size);
+
+/**
* dev_get_addr_index() - Get the indexed reg property of a device
*
* @dev: Pointer to a device
--
2.8.1
More information about the U-Boot
mailing list