mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 02:51:00 +00:00
74 lines
2 KiB
C
74 lines
2 KiB
C
|
/*
|
||
|
* Marvell MBUS common definitions.
|
||
|
*
|
||
|
* Copyright (C) 2008 Marvell Semiconductor
|
||
|
*
|
||
|
* This file is licensed under the terms of the GNU General Public
|
||
|
* License version 2. This program is licensed "as is" without any
|
||
|
* warranty of any kind, whether express or implied.
|
||
|
*/
|
||
|
|
||
|
#ifndef __LINUX_MBUS_H
|
||
|
#define __LINUX_MBUS_H
|
||
|
|
||
|
struct resource;
|
||
|
|
||
|
struct mbus_dram_target_info {
|
||
|
/*
|
||
|
* The 4-bit MBUS target ID of the DRAM controller.
|
||
|
*/
|
||
|
u8 mbus_dram_target_id;
|
||
|
|
||
|
/*
|
||
|
* The base address, size, and MBUS attribute ID for each
|
||
|
* of the possible DRAM chip selects. Peripherals are
|
||
|
* required to support at least 4 decode windows.
|
||
|
*/
|
||
|
int num_cs;
|
||
|
struct mbus_dram_window {
|
||
|
u8 cs_index;
|
||
|
u8 mbus_attr;
|
||
|
u32 base;
|
||
|
u32 size;
|
||
|
} cs[4];
|
||
|
};
|
||
|
|
||
|
struct mvebu_mbus_state {
|
||
|
void __iomem *mbuswins_base;
|
||
|
void __iomem *sdramwins_base;
|
||
|
struct dentry *debugfs_root;
|
||
|
struct dentry *debugfs_sdram;
|
||
|
struct dentry *debugfs_devs;
|
||
|
const struct mvebu_mbus_soc_data *soc;
|
||
|
int hw_io_coherency;
|
||
|
};
|
||
|
|
||
|
/* Flags for PCI/PCIe address decoding regions */
|
||
|
#define MVEBU_MBUS_PCI_IO 0x1
|
||
|
#define MVEBU_MBUS_PCI_MEM 0x2
|
||
|
#define MVEBU_MBUS_PCI_WA 0x3
|
||
|
|
||
|
/*
|
||
|
* Magic value that explicits that we don't need a remapping-capable
|
||
|
* address decoding window.
|
||
|
*/
|
||
|
#define MVEBU_MBUS_NO_REMAP (0xffffffff)
|
||
|
|
||
|
/* Maximum size of a mbus window name */
|
||
|
#define MVEBU_MBUS_MAX_WINNAME_SZ 32
|
||
|
|
||
|
const struct mbus_dram_target_info *mvebu_mbus_dram_info(void);
|
||
|
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_by_id(unsigned int target,
|
||
|
unsigned int attribute,
|
||
|
phys_addr_t base, size_t size,
|
||
|
phys_addr_t remap);
|
||
|
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 mbus_dt_setup_win(struct mvebu_mbus_state *mbus,
|
||
|
u32 base, u32 size, u8 target, u8 attr);
|
||
|
|
||
|
#endif /* __LINUX_MBUS_H */
|