From: Thomas Petazzoni <thomas.petazz...@free-electrons.com>
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.petazz...@free-electrons.com>
---
drivers/bus/mvebu-mbus.c | 33 +++++++++++++++++++++++++--------
include/linux/mbus.h | 6 ++++++
2 files changed, 31 insertions(+), 8 deletions(-)
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 @@ static const struct of_device_id of_mvebu_mbus_ids[] = {
/*
* 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 @@ int mvebu_mbus_add_window_remap_flags(const char *devname,
phys_addr_t base,
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 @@ int mvebu_mbus_add_window(const char *devname, phys_addr_t
base, size_t size)
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;
diff --git a/include/linux/mbus.h b/include/linux/mbus.h
index dba482e..9245b66 100644
--- a/include/linux/mbus.h
+++ b/include/linux/mbus.h
@@ -62,8 +62,14 @@ static inline const struct mbus_dram_target_info
*mv_mbus_dram_info(void)
int mvebu_mbus_add_window_remap_flags(const char *devname, phys_addr_t base,
size_t size, phys_addr_t remap,
unsigned int flags);
+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);
int mvebu_mbus_add_window(const char *devname, phys_addr_t base,
size_t size);
+int mvebu_mbus_add_window_by_id(unsigned int target, unsigned int attribute,
+ phys_addr_t base, size_t size);
int mvebu_mbus_del_window(phys_addr_t base, size_t size);
int mvebu_mbus_init(const char *soc, phys_addr_t mbus_phys_base,
size_t mbus_size, phys_addr_t sdram_phys_base,
--
1.8.1.5
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