cregit-Linux how code gets into the kernel

Release 4.7 include/linux/mbus.h

Directory: include/linux
/*
 * 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];
};

/* 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

/*
 * The Marvell mbus is to be found only on SOCs from the Orion family
 * at the moment.  Provide a dummy stub for other architectures.
 */
#ifdef CONFIG_PLAT_ORION
extern const struct mbus_dram_target_info *mv_mbus_dram_info(void);
extern const struct mbus_dram_target_info *mv_mbus_dram_info_nooverlap(void);
#else

static inline const struct mbus_dram_target_info *mv_mbus_dram_info(void) { return NULL; }

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static inline const struct mbus_dram_target_info *mv_mbus_dram_info_nooverlap(void) { return NULL; }

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#endif int mvebu_mbus_save_cpu_target(u32 *store_addr); void mvebu_mbus_get_pcie_mem_aperture(struct resource *res); void mvebu_mbus_get_pcie_io_aperture(struct resource *res); int mvebu_mbus_get_dram_win_info(phys_addr_t phyaddr, u8 *target, u8 *attr); int mvebu_mbus_get_io_win_info(phys_addr_t phyaddr, u32 *size, u8 *target, u8 *attr); 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 mvebu_mbus_init(const char *soc, phys_addr_t mbus_phys_base, size_t mbus_size, phys_addr_t sdram_phys_base, size_t sdram_size); int mvebu_mbus_dt_init(bool is_coherent); #endif /* __LINUX_MBUS_H */

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Directory: include/linux
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