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bus: mvebu-mbus: Add new API for the PCIe memory and IO aperture

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We add two optional properties to the MBus DT binding, to encode
the PCIe memory and IO aperture. This allows such information to
be retrieved by -for instance- the pci driver to allocate the
MBus decoding windows.

Correspondingly, and in order to retrieve this information,
we add two new APIs.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@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>
This commit is contained in:
Ezequiel Garcia 2013-07-26 10:17:47 -03:00 • committed by Jason Cooper
parent bb24cab39c
commit 79d946837c
2 changed files with 53 additions and 0 deletions
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4
include/linux/mbus.h
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@ -11,6 +11,8 @@
#ifndef __LINUX_MBUS_H
#define __LINUX_MBUS_H
struct resource;
struct mbus_dram_target_info
{
/*
@ -59,6 +61,8 @@ static inline const struct mbus_dram_target_info *mv_mbus_dram_info(void)
}
#endif
void mvebu_mbus_get_pcie_mem_aperture(struct resource *res);
void mvebu_mbus_get_pcie_io_aperture(struct resource *res);
int mvebu_mbus_add_window_remap_flags(const char *devname, phys_addr_t base,
size_t size, phys_addr_t remap,
unsigned int flags);