2 * Marvell MBUS common definitions.
4 * Copyright (C) 2008 Marvell Semiconductor
6 * This file is licensed under the terms of the GNU General Public
7 * License version 2. This program is licensed "as is" without any
8 * warranty of any kind, whether express or implied.
11 #ifndef __LINUX_MBUS_H
12 #define __LINUX_MBUS_H
16 struct mbus_dram_target_info
19 * The 4-bit MBUS target ID of the DRAM controller.
21 u8 mbus_dram_target_id;
24 * The base address, size, and MBUS attribute ID for each
25 * of the possible DRAM chip selects. Peripherals are
26 * required to support at least 4 decode windows.
29 struct mbus_dram_window {
37 /* Flags for PCI/PCIe address decoding regions */
38 #define MVEBU_MBUS_PCI_IO 0x1
39 #define MVEBU_MBUS_PCI_MEM 0x2
40 #define MVEBU_MBUS_PCI_WA 0x3
43 * Magic value that explicits that we don't need a remapping-capable
44 * address decoding window.
46 #define MVEBU_MBUS_NO_REMAP (0xffffffff)
48 /* Maximum size of a mbus window name */
49 #define MVEBU_MBUS_MAX_WINNAME_SZ 32
52 * The Marvell mbus is to be found only on SOCs from the Orion family
53 * at the moment. Provide a dummy stub for other architectures.
55 #ifdef CONFIG_PLAT_ORION
56 extern const struct mbus_dram_target_info *mv_mbus_dram_info(void);
58 static inline const struct mbus_dram_target_info *mv_mbus_dram_info(void)
64 void mvebu_mbus_get_pcie_mem_aperture(struct resource *res);
65 void mvebu_mbus_get_pcie_io_aperture(struct resource *res);
66 int mvebu_mbus_add_window_remap_by_id(unsigned int target,
67 unsigned int attribute,
68 phys_addr_t base, size_t size,
70 int mvebu_mbus_add_window_by_id(unsigned int target, unsigned int attribute,
71 phys_addr_t base, size_t size);
72 int mvebu_mbus_del_window(phys_addr_t base, size_t size);
73 int mvebu_mbus_init(const char *soc, phys_addr_t mbus_phys_base,
74 size_t mbus_size, phys_addr_t sdram_phys_base,
76 int mvebu_mbus_dt_init(void);
78 #endif /* __LINUX_MBUS_H */