[mirror_ubuntu-bionic-kernel.git] / include / linux / mbus.h

/*
 * 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 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];
};

/*
 * 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);
#else
static inline const struct mbus_dram_target_info *mv_mbus_dram_info(void)
{
	return NULL;
}
#endif
#endif
Commit	Line	Data
abc848c1 LB	1	/*
	2	* Marvell MBUS common definitions.
	3	*
	4	* Copyright (C) 2008 Marvell Semiconductor
	5	*
	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.
	9	*/
	10
	11	#ifndef __LINUX_MBUS_H
	12	#define __LINUX_MBUS_H
	13
	14	struct mbus_dram_target_info
	15	{
	16	/*
	17	* The 4-bit MBUS target ID of the DRAM controller.
	18	*/
	19	u8 mbus_dram_target_id;
	20
	21	/*
	22	* The base address, size, and MBUS attribute ID for each
	23	* of the possible DRAM chip selects. Peripherals are
	24	* required to support at least 4 decode windows.
	25	*/
	26	int num_cs;
	27	struct mbus_dram_window {
	28	u8 cs_index;
	29	u8 mbus_attr;
	30	u32 base;
	31	u32 size;
	32	} cs[4];
	33	};
	34
63a9332b AL	35	/*
	36	* The Marvell mbus is to be found only on SOCs from the Orion family
	37	* at the moment. Provide a dummy stub for other architectures.
	38	*/
	39	#ifdef CONFIG_PLAT_ORION
	40	extern const struct mbus_dram_target_info *mv_mbus_dram_info(void);
	41	#else
	42	static inline const struct mbus_dram_target_info *mv_mbus_dram_info(void)
	43	{
	44	return NULL;
	45	}
	46	#endif
abc848c1	47	#endif