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139 lines
5.3 KiB
C
139 lines
5.3 KiB
C
/*
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* [origin: Linux kernel include/asm-arm/arch-at91/at91sam9_smc.h]
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*
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* Copyright (C) 2007 Andrew Victor
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* Copyright (C) 2007 Atmel Corporation.
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*
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* Static Memory Controllers (SMC) - System peripherals registers.
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* Based on AT91SAM9261 datasheet revision D.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef AT91SAM9_SMC_H
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#define AT91SAM9_SMC_H
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#ifdef __ASSEMBLY__
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#ifndef ATMEL_BASE_SMC
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#define ATMEL_BASE_SMC ATMEL_BASE_SMC0
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#endif
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#define AT91_ASM_SMC_SETUP0 ATMEL_BASE_SMC
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#define AT91_ASM_SMC_PULSE0 (ATMEL_BASE_SMC + 0x04)
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#define AT91_ASM_SMC_CYCLE0 (ATMEL_BASE_SMC + 0x08)
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#define AT91_ASM_SMC_MODE0 (ATMEL_BASE_SMC + 0x0C)
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#else
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typedef struct at91_cs {
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u32 setup; /* 0x00 SMC Setup Register */
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u32 pulse; /* 0x04 SMC Pulse Register */
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u32 cycle; /* 0x08 SMC Cycle Register */
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u32 mode; /* 0x0C SMC Mode Register */
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} at91_cs_t;
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typedef struct at91_smc {
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at91_cs_t cs[8];
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} at91_smc_t;
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#endif /* __ASSEMBLY__ */
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#define AT91_SMC_SETUP_NWE(x) (x & 0x3f)
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#define AT91_SMC_SETUP_NCS_WR(x) ((x & 0x3f) << 8)
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#define AT91_SMC_SETUP_NRD(x) ((x & 0x3f) << 16)
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#define AT91_SMC_SETUP_NCS_RD(x) ((x & 0x3f) << 24)
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#define AT91_SMC_PULSE_NWE(x) (x & 0x7f)
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#define AT91_SMC_PULSE_NCS_WR(x) ((x & 0x7f) << 8)
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#define AT91_SMC_PULSE_NRD(x) ((x & 0x7f) << 16)
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#define AT91_SMC_PULSE_NCS_RD(x) ((x & 0x7f) << 24)
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#define AT91_SMC_CYCLE_NWE(x) (x & 0x1ff)
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#define AT91_SMC_CYCLE_NRD(x) ((x & 0x1ff) << 16)
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#define AT91_SMC_MODE_RM_NCS 0x00000000
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#define AT91_SMC_MODE_RM_NRD 0x00000001
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#define AT91_SMC_MODE_WM_NCS 0x00000000
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#define AT91_SMC_MODE_WM_NWE 0x00000002
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#define AT91_SMC_MODE_EXNW_DISABLE 0x00000000
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#define AT91_SMC_MODE_EXNW_FROZEN 0x00000020
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#define AT91_SMC_MODE_EXNW_READY 0x00000030
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#define AT91_SMC_MODE_BAT 0x00000100
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#define AT91_SMC_MODE_DBW_8 0x00000000
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#define AT91_SMC_MODE_DBW_16 0x00001000
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#define AT91_SMC_MODE_DBW_32 0x00002000
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#define AT91_SMC_MODE_TDF_CYCLE(x) ((x & 0xf) << 16)
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#define AT91_SMC_MODE_TDF 0x00100000
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#define AT91_SMC_MODE_PMEN 0x01000000
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#define AT91_SMC_MODE_PS_4 0x00000000
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#define AT91_SMC_MODE_PS_8 0x10000000
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#define AT91_SMC_MODE_PS_16 0x20000000
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#define AT91_SMC_MODE_PS_32 0x30000000
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#ifdef CONFIG_AT91_LEGACY
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#define AT91_SMC_SETUP(n) (AT91_SMC + 0x00 + ((n)*0x10)) /* Setup Register for CS n */
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#define AT91_SMC_NWESETUP (0x3f << 0) /* NWE Setup Length */
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#define AT91_SMC_NWESETUP_(x) ((x) << 0)
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#define AT91_SMC_NCS_WRSETUP (0x3f << 8) /* NCS Setup Length in Write Access */
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#define AT91_SMC_NCS_WRSETUP_(x) ((x) << 8)
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#define AT91_SMC_NRDSETUP (0x3f << 16) /* NRD Setup Length */
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#define AT91_SMC_NRDSETUP_(x) ((x) << 16)
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#define AT91_SMC_NCS_RDSETUP (0x3f << 24) /* NCS Setup Length in Read Access */
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#define AT91_SMC_NCS_RDSETUP_(x) ((x) << 24)
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#define AT91_SMC_PULSE(n) (AT91_SMC + 0x04 + ((n)*0x10)) /* Pulse Register for CS n */
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#define AT91_SMC_NWEPULSE (0x7f << 0) /* NWE Pulse Length */
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#define AT91_SMC_NWEPULSE_(x) ((x) << 0)
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#define AT91_SMC_NCS_WRPULSE (0x7f << 8) /* NCS Pulse Length in Write Access */
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#define AT91_SMC_NCS_WRPULSE_(x)((x) << 8)
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#define AT91_SMC_NRDPULSE (0x7f << 16) /* NRD Pulse Length */
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#define AT91_SMC_NRDPULSE_(x) ((x) << 16)
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#define AT91_SMC_NCS_RDPULSE (0x7f << 24) /* NCS Pulse Length in Read Access */
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#define AT91_SMC_NCS_RDPULSE_(x)((x) << 24)
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#define AT91_SMC_CYCLE(n) (AT91_SMC + 0x08 + ((n)*0x10)) /* Cycle Register for CS n */
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#define AT91_SMC_NWECYCLE (0x1ff << 0 ) /* Total Write Cycle Length */
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#define AT91_SMC_NWECYCLE_(x) ((x) << 0)
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#define AT91_SMC_NRDCYCLE (0x1ff << 16) /* Total Read Cycle Length */
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#define AT91_SMC_NRDCYCLE_(x) ((x) << 16)
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#define AT91_SMC_MODE(n) (AT91_SMC + 0x0c + ((n)*0x10)) /* Mode Register for CS n */
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#define AT91_SMC_READMODE (1 << 0) /* Read Mode */
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#define AT91_SMC_WRITEMODE (1 << 1) /* Write Mode */
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#define AT91_SMC_EXNWMODE (3 << 4) /* NWAIT Mode */
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#define AT91_SMC_EXNWMODE_DISABLE (0 << 4)
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#define AT91_SMC_EXNWMODE_FROZEN (2 << 4)
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#define AT91_SMC_EXNWMODE_READY (3 << 4)
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#define AT91_SMC_BAT (1 << 8) /* Byte Access Type */
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#define AT91_SMC_BAT_SELECT (0 << 8)
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#define AT91_SMC_BAT_WRITE (1 << 8)
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#define AT91_SMC_DBW (3 << 12) /* Data Bus Width */
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#define AT91_SMC_DBW_8 (0 << 12)
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#define AT91_SMC_DBW_16 (1 << 12)
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#define AT91_SMC_DBW_32 (2 << 12)
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#define AT91_SMC_TDF (0xf << 16) /* Data Float Time. */
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#define AT91_SMC_TDF_(x) ((x) << 16)
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#define AT91_SMC_TDFMODE (1 << 20) /* TDF Optimization - Enabled */
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#define AT91_SMC_PMEN (1 << 24) /* Page Mode Enabled */
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#define AT91_SMC_PS (3 << 28) /* Page Size */
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#define AT91_SMC_PS_4 (0 << 28)
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#define AT91_SMC_PS_8 (1 << 28)
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#define AT91_SMC_PS_16 (2 << 28)
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#define AT91_SMC_PS_32 (3 << 28)
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#if defined(AT91_SMC1) /* The AT91SAM9263 has 2 Static Memory contollers */
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#define AT91_SMC1_SETUP(n) (AT91_SMC1 + 0x00 + ((n)*0x10)) /* Setup Register for CS n */
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#define AT91_SMC1_PULSE(n) (AT91_SMC1 + 0x04 + ((n)*0x10)) /* Pulse Register for CS n */
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#define AT91_SMC1_CYCLE(n) (AT91_SMC1 + 0x08 + ((n)*0x10)) /* Cycle Register for CS n */
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#define AT91_SMC1_MODE(n) (AT91_SMC1 + 0x0c + ((n)*0x10)) /* Mode Register for CS n */
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#endif
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#endif
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#endif
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