hsmc.h

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/*
 * Register definitions for Atmel Static Memory Controller (SMC)
 *
 * Copyright (C) 2006 Atmel Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#ifndef __ASM_AVR32_HSMC_H__
#define __ASM_AVR32_HSMC_H__

/* HSMC register offsets */
#define HSMC_SETUP0             0x0000
#define HSMC_PULSE0             0x0004
#define HSMC_CYCLE0             0x0008
#define HSMC_MODE0              0x000c
#define HSMC_SETUP1             0x0010
#define HSMC_PULSE1             0x0014
#define HSMC_CYCLE1             0x0018
#define HSMC_MODE1              0x001c
#define HSMC_SETUP2             0x0020
#define HSMC_PULSE2             0x0024
#define HSMC_CYCLE2             0x0028
#define HSMC_MODE2              0x002c
#define HSMC_SETUP3             0x0030
#define HSMC_PULSE3             0x0034
#define HSMC_CYCLE3             0x0038
#define HSMC_MODE3              0x003c
#define HSMC_SETUP4             0x0040
#define HSMC_PULSE4             0x0044
#define HSMC_CYCLE4             0x0048
#define HSMC_MODE4              0x004c
#define HSMC_SETUP5             0x0050
#define HSMC_PULSE5             0x0054
#define HSMC_CYCLE5             0x0058
#define HSMC_MODE5              0x005c

/* Bitfields in SETUP0 */
#define HSMC_NWE_SETUP_OFFSET           0
#define HSMC_NWE_SETUP_SIZE         6
#define HSMC_NCS_WR_SETUP_OFFSET        8
#define HSMC_NCS_WR_SETUP_SIZE          6
#define HSMC_NRD_SETUP_OFFSET           16
#define HSMC_NRD_SETUP_SIZE         6
#define HSMC_NCS_RD_SETUP_OFFSET        24
#define HSMC_NCS_RD_SETUP_SIZE          6

/* Bitfields in PULSE0 */
#define HSMC_NWE_PULSE_OFFSET           0
#define HSMC_NWE_PULSE_SIZE         7
#define HSMC_NCS_WR_PULSE_OFFSET        8
#define HSMC_NCS_WR_PULSE_SIZE          7
#define HSMC_NRD_PULSE_OFFSET           16
#define HSMC_NRD_PULSE_SIZE         7
#define HSMC_NCS_RD_PULSE_OFFSET        24
#define HSMC_NCS_RD_PULSE_SIZE          7

/* Bitfields in CYCLE0 */
#define HSMC_NWE_CYCLE_OFFSET           0
#define HSMC_NWE_CYCLE_SIZE         9
#define HSMC_NRD_CYCLE_OFFSET           16
#define HSMC_NRD_CYCLE_SIZE         9

/* Bitfields in MODE0 */
#define HSMC_READ_MODE_OFFSET           0
#define HSMC_READ_MODE_SIZE         1
#define HSMC_WRITE_MODE_OFFSET          1
#define HSMC_WRITE_MODE_SIZE            1
#define HSMC_EXNW_MODE_OFFSET           4
#define HSMC_EXNW_MODE_SIZE         2
#define HSMC_BAT_OFFSET             8
#define HSMC_BAT_SIZE               1
#define HSMC_DBW_OFFSET             12
#define HSMC_DBW_SIZE               2
#define HSMC_TDF_CYCLES_OFFSET          16
#define HSMC_TDF_CYCLES_SIZE            4
#define HSMC_TDF_MODE_OFFSET            20
#define HSMC_TDF_MODE_SIZE          1
#define HSMC_PMEN_OFFSET            24
#define HSMC_PMEN_SIZE              1
#define HSMC_PS_OFFSET              28
#define HSMC_PS_SIZE                2

/* Constants for READ_MODE */
#define HSMC_READ_MODE_NCS_CONTROLLED       0
#define HSMC_READ_MODE_NRD_CONTROLLED       1

/* Constants for WRITE_MODE */
#define HSMC_WRITE_MODE_NCS_CONTROLLED      0
#define HSMC_WRITE_MODE_NWE_CONTROLLED      1

/* Constants for EXNW_MODE */
#define HSMC_EXNW_MODE_DISABLED         0
#define HSMC_EXNW_MODE_RESERVED         1
#define HSMC_EXNW_MODE_FROZEN           2
#define HSMC_EXNW_MODE_READY            3

/* Constants for BAT */
#define HSMC_BAT_BYTE_SELECT            0
#define HSMC_BAT_BYTE_WRITE         1

/* Constants for DBW */
#define HSMC_DBW_8_BITS             0
#define HSMC_DBW_16_BITS            1
#define HSMC_DBW_32_BITS            2

/* Bit manipulation macros */
#define HSMC_BIT(name)                          \
    (1 << HSMC_##name##_OFFSET)
#define HSMC_BF(name,value)                     \
    (((value) & ((1 << HSMC_##name##_SIZE) - 1))            \
     << HSMC_##name##_OFFSET)
#define HSMC_BFEXT(name,value)                      \
    (((value) >> HSMC_##name##_OFFSET)              \
     & ((1 << HSMC_##name##_SIZE) - 1))
#define HSMC_BFINS(name,value,old)                  \
    (((old) & ~(((1 << HSMC_##name##_SIZE) - 1)         \
            << HSMC_##name##_OFFSET)) | HSMC_BF(name,value))

/* Register access macros */
#define hsmc_readl(port,reg)                        \
    __raw_readl((port)->regs + HSMC_##reg)
#define hsmc_writel(port,reg,value)                 \
    __raw_writel((value), (port)->regs + HSMC_##reg)

#endif /* __ASM_AVR32_HSMC_H__ */