bus: mvebu-mbus: Add new API for window creation
We add an API to create MBus address decoding windows from the target
ID and attribute. This function will be used later and deprecate the
current name based scheme.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
diff --git a/drivers/bus/mvebu-mbus.c b/drivers/bus/mvebu-mbus.c
index 33c6947..827468a 100644
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -748,6 +748,22 @@
/*
* Public API of the driver
*/
+int mvebu_mbus_add_window_remap_by_id(unsigned int target,
+ unsigned int attribute,
+ phys_addr_t base, size_t size,
+ phys_addr_t remap)
+{
+ struct mvebu_mbus_state *s = &mbus_state;
+
+ if (!mvebu_mbus_window_conflicts(s, base, size, target, attribute)) {
+ pr_err("cannot add window '%x:%x', conflicts with another window\n",
+ target, attribute);
+ return -EINVAL;
+ }
+
+ return mvebu_mbus_alloc_window(s, base, size, remap, target, attribute);
+}
+
int mvebu_mbus_add_window_remap_flags(const char *devname, phys_addr_t base,
size_t size, phys_addr_t remap,
unsigned int flags)
@@ -776,14 +792,8 @@
else if (flags == MVEBU_MBUS_PCI_WA)
attr |= 0x28;
- if (!mvebu_mbus_window_conflicts(s, base, size, target, attr)) {
- pr_err("cannot add window '%s', conflicts with another window\n",
- devname);
- return -EINVAL;
- }
-
- return mvebu_mbus_alloc_window(s, base, size, remap, target, attr);
-
+ return mvebu_mbus_add_window_remap_by_id(target, attr, base,
+ size, remap);
}
int mvebu_mbus_add_window(const char *devname, phys_addr_t base, size_t size)
@@ -792,6 +802,13 @@
MVEBU_MBUS_NO_REMAP, 0);
}
+int mvebu_mbus_add_window_by_id(unsigned int target, unsigned int attribute,
+ phys_addr_t base, size_t size)
+{
+ return mvebu_mbus_add_window_remap_by_id(target, attribute, base,
+ size, MVEBU_MBUS_NO_REMAP);
+}
+
int mvebu_mbus_del_window(phys_addr_t base, size_t size)
{
int win;