161 lines
7.4 KiB
C
161 lines
7.4 KiB
C
/*
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* include/asm-arm/arch-at91/at91rm9200_mc.h
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*
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* Copyright (C) 2005 Ivan Kokshaysky
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* Copyright (C) SAN People
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*
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* Memory Controllers (MC, EBI, SMC, SDRAMC, BFC) - System peripherals registers.
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* Based on AT91RM9200 datasheet revision E.
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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 AT91RM9200_MC_H
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#define AT91RM9200_MC_H
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/* Memory Controller */
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#define AT91_MC_RCR (AT91_MC + 0x00) /* MC Remap Control Register */
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#define AT91_MC_RCB (1 << 0) /* Remap Command Bit */
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#define AT91_MC_ASR (AT91_MC + 0x04) /* MC Abort Status Register */
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#define AT91_MC_UNADD (1 << 0) /* Undefined Address Abort Status */
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#define AT91_MC_MISADD (1 << 1) /* Misaligned Address Abort Status */
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#define AT91_MC_ABTSZ (3 << 8) /* Abort Size Status */
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#define AT91_MC_ABTSZ_BYTE (0 << 8)
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#define AT91_MC_ABTSZ_HALFWORD (1 << 8)
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#define AT91_MC_ABTSZ_WORD (2 << 8)
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#define AT91_MC_ABTTYP (3 << 10) /* Abort Type Status */
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#define AT91_MC_ABTTYP_DATAREAD (0 << 10)
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#define AT91_MC_ABTTYP_DATAWRITE (1 << 10)
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#define AT91_MC_ABTTYP_FETCH (2 << 10)
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#define AT91_MC_MST0 (1 << 16) /* ARM920T Abort Source */
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#define AT91_MC_MST1 (1 << 17) /* PDC Abort Source */
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#define AT91_MC_MST2 (1 << 18) /* UHP Abort Source */
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#define AT91_MC_MST3 (1 << 19) /* EMAC Abort Source */
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#define AT91_MC_SVMST0 (1 << 24) /* Saved ARM920T Abort Source */
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#define AT91_MC_SVMST1 (1 << 25) /* Saved PDC Abort Source */
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#define AT91_MC_SVMST2 (1 << 26) /* Saved UHP Abort Source */
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#define AT91_MC_SVMST3 (1 << 27) /* Saved EMAC Abort Source */
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#define AT91_MC_AASR (AT91_MC + 0x08) /* MC Abort Address Status Register */
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#define AT91_MC_MPR (AT91_MC + 0x0c) /* MC Master Priority Register */
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#define AT91_MPR_MSTP0 (7 << 0) /* ARM920T Priority */
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#define AT91_MPR_MSTP1 (7 << 4) /* PDC Priority */
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#define AT91_MPR_MSTP2 (7 << 8) /* UHP Priority */
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#define AT91_MPR_MSTP3 (7 << 12) /* EMAC Priority */
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/* External Bus Interface (EBI) registers */
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#define AT91_EBI_CSA (AT91_MC + 0x60) /* Chip Select Assignment Register */
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#define AT91_EBI_CS0A (1 << 0) /* Chip Select 0 Assignment */
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#define AT91_EBI_CS0A_SMC (0 << 0)
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#define AT91_EBI_CS0A_BFC (1 << 0)
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#define AT91_EBI_CS1A (1 << 1) /* Chip Select 1 Assignment */
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#define AT91_EBI_CS1A_SMC (0 << 1)
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#define AT91_EBI_CS1A_SDRAMC (1 << 1)
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#define AT91_EBI_CS3A (1 << 3) /* Chip Select 2 Assignment */
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#define AT91_EBI_CS3A_SMC (0 << 3)
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#define AT91_EBI_CS3A_SMC_SMARTMEDIA (1 << 3)
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#define AT91_EBI_CS4A (1 << 4) /* Chip Select 3 Assignment */
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#define AT91_EBI_CS4A_SMC (0 << 4)
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#define AT91_EBI_CS4A_SMC_COMPACTFLASH (1 << 4)
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#define AT91_EBI_CFGR (AT91_MC + 0x64) /* Configuration Register */
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#define AT91_EBI_DBPUC (1 << 0) /* Data Bus Pull-Up Configuration */
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/* Static Memory Controller (SMC) registers */
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#define AT91_SMC_CSR(n) (AT91_MC + 0x70 + ((n) * 4))/* SMC Chip Select Register */
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#define AT91_SMC_NWS (0x7f << 0) /* Number of Wait States */
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#define AT91_SMC_NWS_(x) ((x) << 0)
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#define AT91_SMC_WSEN (1 << 7) /* Wait State Enable */
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#define AT91_SMC_TDF (0xf << 8) /* Data Float Time */
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#define AT91_SMC_TDF_(x) ((x) << 8)
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#define AT91_SMC_BAT (1 << 12) /* Byte Access Type */
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#define AT91_SMC_DBW (3 << 13) /* Data Bus Width */
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#define AT91_SMC_DBW_16 (1 << 13)
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#define AT91_SMC_DBW_8 (2 << 13)
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#define AT91_SMC_DPR (1 << 15) /* Data Read Protocol */
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#define AT91_SMC_ACSS (3 << 16) /* Address to Chip Select Setup */
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#define AT91_SMC_ACSS_STD (0 << 16)
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#define AT91_SMC_ACSS_1 (1 << 16)
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#define AT91_SMC_ACSS_2 (2 << 16)
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#define AT91_SMC_ACSS_3 (3 << 16)
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#define AT91_SMC_RWSETUP (7 << 24) /* Read & Write Signal Time Setup */
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#define AT91_SMC_RWSETUP_(x) ((x) << 24)
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#define AT91_SMC_RWHOLD (7 << 28) /* Read & Write Signal Hold Time */
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#define AT91_SMC_RWHOLD_(x) ((x) << 28)
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/* SDRAM Controller registers */
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#define AT91_SDRAMC_MR (AT91_MC + 0x90) /* Mode Register */
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#define AT91_SDRAMC_MODE (0xf << 0) /* Command Mode */
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#define AT91_SDRAMC_MODE_NORMAL (0 << 0)
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#define AT91_SDRAMC_MODE_NOP (1 << 0)
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#define AT91_SDRAMC_MODE_PRECHARGE (2 << 0)
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#define AT91_SDRAMC_MODE_LMR (3 << 0)
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#define AT91_SDRAMC_MODE_REFRESH (4 << 0)
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#define AT91_SDRAMC_DBW (1 << 4) /* Data Bus Width */
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#define AT91_SDRAMC_DBW_32 (0 << 4)
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#define AT91_SDRAMC_DBW_16 (1 << 4)
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#define AT91_SDRAMC_TR (AT91_MC + 0x94) /* Refresh Timer Register */
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#define AT91_SDRAMC_COUNT (0xfff << 0) /* Refresh Timer Count */
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#define AT91_SDRAMC_CR (AT91_MC + 0x98) /* Configuration Register */
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#define AT91_SDRAMC_NC (3 << 0) /* Number of Column Bits */
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#define AT91_SDRAMC_NC_8 (0 << 0)
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#define AT91_SDRAMC_NC_9 (1 << 0)
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#define AT91_SDRAMC_NC_10 (2 << 0)
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#define AT91_SDRAMC_NC_11 (3 << 0)
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#define AT91_SDRAMC_NR (3 << 2) /* Number of Row Bits */
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#define AT91_SDRAMC_NR_11 (0 << 2)
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#define AT91_SDRAMC_NR_12 (1 << 2)
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#define AT91_SDRAMC_NR_13 (2 << 2)
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#define AT91_SDRAMC_NB (1 << 4) /* Number of Banks */
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#define AT91_SDRAMC_NB_2 (0 << 4)
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#define AT91_SDRAMC_NB_4 (1 << 4)
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#define AT91_SDRAMC_CAS (3 << 5) /* CAS Latency */
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#define AT91_SDRAMC_CAS_2 (2 << 5)
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#define AT91_SDRAMC_TWR (0xf << 7) /* Write Recovery Delay */
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#define AT91_SDRAMC_TRC (0xf << 11) /* Row Cycle Delay */
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#define AT91_SDRAMC_TRP (0xf << 15) /* Row Precharge Delay */
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#define AT91_SDRAMC_TRCD (0xf << 19) /* Row to Column Delay */
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#define AT91_SDRAMC_TRAS (0xf << 23) /* Active to Precharge Delay */
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#define AT91_SDRAMC_TXSR (0xf << 27) /* Exit Self Refresh to Active Delay */
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#define AT91_SDRAMC_SRR (AT91_MC + 0x9c) /* Self Refresh Register */
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#define AT91_SDRAMC_LPR (AT91_MC + 0xa0) /* Low Power Register */
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#define AT91_SDRAMC_IER (AT91_MC + 0xa4) /* Interrupt Enable Register */
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#define AT91_SDRAMC_IDR (AT91_MC + 0xa8) /* Interrupt Disable Register */
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#define AT91_SDRAMC_IMR (AT91_MC + 0xac) /* Interrupt Mask Register */
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#define AT91_SDRAMC_ISR (AT91_MC + 0xb0) /* Interrupt Status Register */
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/* Burst Flash Controller register */
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#define AT91_BFC_MR (AT91_MC + 0xc0) /* Mode Register */
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#define AT91_BFC_BFCOM (3 << 0) /* Burst Flash Controller Operating Mode */
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#define AT91_BFC_BFCOM_DISABLED (0 << 0)
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#define AT91_BFC_BFCOM_ASYNC (1 << 0)
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#define AT91_BFC_BFCOM_BURST (2 << 0)
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#define AT91_BFC_BFCC (3 << 2) /* Burst Flash Controller Clock */
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#define AT91_BFC_BFCC_MCK (1 << 2)
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#define AT91_BFC_BFCC_DIV2 (2 << 2)
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#define AT91_BFC_BFCC_DIV4 (3 << 2)
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#define AT91_BFC_AVL (0xf << 4) /* Address Valid Latency */
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#define AT91_BFC_PAGES (7 << 8) /* Page Size */
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#define AT91_BFC_PAGES_NO_PAGE (0 << 8)
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#define AT91_BFC_PAGES_16 (1 << 8)
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#define AT91_BFC_PAGES_32 (2 << 8)
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#define AT91_BFC_PAGES_64 (3 << 8)
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#define AT91_BFC_PAGES_128 (4 << 8)
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#define AT91_BFC_PAGES_256 (5 << 8)
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#define AT91_BFC_PAGES_512 (6 << 8)
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#define AT91_BFC_PAGES_1024 (7 << 8)
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#define AT91_BFC_OEL (3 << 12) /* Output Enable Latency */
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#define AT91_BFC_BAAEN (1 << 16) /* Burst Address Advance Enable */
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#define AT91_BFC_BFOEH (1 << 17) /* Burst Flash Output Enable Handling */
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#define AT91_BFC_MUXEN (1 << 18) /* Multiplexed Bus Enable */
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#define AT91_BFC_RDYEN (1 << 19) /* Ready Enable Mode */
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#endif
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