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/* GRLIB Memory controller setup structures
*
* (C) Copyright 2010, 2015
* Daniel Hellstrom, Cobham Gaisler, daniel@gaisler.com.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __MEMCFG_H__
#define __MEMCFG_H__
/*********** Low Level Memory Controller Initalization ***********/
#ifndef __ASSEMBLER__
struct grlib_mctrl_handler;
typedef void (*mctrl_handler_t)(
struct grlib_mctrl_handler *dev,
void *conf,
unsigned int ioarea
);
/* Memory Controller Handler Structure */
struct grlib_mctrl_handler {
unsigned char type; /* 0x00. MASK: AHB MST&SLV, APB SLV */
char index; /* 0x01. Unit number, 0, 1, 2... */
char unused[2]; /* 0x02 */
unsigned int ven_dev; /* 0x04. Device and Vendor */
mctrl_handler_t func; /* 0x08. Memory Controller Handler */
void *priv; /* 0x0c. Optional private data, ptr to
* info how to set up controller */
};
extern struct grlib_mctrl_handler grlib_mctrl_handlers[];
#endif
#define MH_STRUCT_SIZE (4*4)
#define MH_TYPE 0x00
#define MH_INDEX 0x01
#define MH_VENDOR_DEVICE 0x04
#define MH_FUNC 0x08
#define MH_PRIV 0x0c
#define MH_TYPE_NONE DEV_NONE
#define MH_TYPE_AHB_MST DEV_AHB_MST
#define MH_TYPE_AHB_SLV DEV_AHB_SLV
#define MH_TYPE_APB_SLV DEV_APB_SLV
#define MH_UNUSED {0, 0}
#define MH_END {DEV_NONE, 0, MH_UNUSED, AMBA_PNP_ID(0, 0), 0, 0}
/*********** Low Level Memory Controller Initalization Handlers ***********/
#ifndef __ASSEMBLER__
extern void _nomem_mctrl_init(
struct grlib_mctrl_handler *dev,
void *conf,
unsigned int ioarea_apbmst);
struct mctrl_setup {
unsigned int reg_mask; /* Which registers to write */
struct {
unsigned int mask; /* Mask used keep reg bits unchanged */
unsigned int value; /* Value written to register */
} regs[8];
};
extern void _nomem_ahbmctrl_init(
struct grlib_mctrl_handler *dev,
void *conf,
unsigned int ioarea_apbmst);
struct ahbmctrl_setup {
int ahb_mbar_no; /* MBAR to get register address from */
unsigned int reg_mask; /* Which registers to write */
struct {
unsigned int mask; /* Mask used keep reg bits unchanged */
unsigned int value; /* Value written to register */
} regs[8];
};
#endif
/* mctrl_setup data structure defines */
#define NREGS_OFS 0
#define REGS_OFS 0x4
#define REGS_SIZE 8
#endif
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