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b1196a3fba
Support registers definitions of ftsdmc021 SDRAM controller. Signed-off-by: Macpaul Lin <macpaul@andestech.com>
151 lines
5.7 KiB
C
151 lines
5.7 KiB
C
/*
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* (C) Copyright 2009 Faraday Technology
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* Po-Yu Chuang <ratbert@faraday-tech.com>
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*
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* (C) Copyright 2011 Andes Technology Corp
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* Macpaul Lin <macpaul@andestech.com>
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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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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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* FTSDMC021 - SDRAM Controller
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*/
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#ifndef __FTSDMC021_H
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#define __FTSDMC021_H
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#ifndef __ASSEMBLY__
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struct ftsdmc021 {
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unsigned int tp1; /* 0x00 - SDRAM Timing Parameter 1 */
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unsigned int tp2; /* 0x04 - SDRAM Timing Parameter 2 */
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unsigned int cr1; /* 0x08 - SDRAM Configuration Reg 1 */
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unsigned int cr2; /* 0x0c - SDRAM Configuration Reg 2 */
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unsigned int bank0_bsr; /* 0x10 - Ext. Bank Base/Size Reg 0 */
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unsigned int bank1_bsr; /* 0x14 - Ext. Bank Base/Size Reg 1 */
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unsigned int bank2_bsr; /* 0x18 - Ext. Bank Base/Size Reg 2 */
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unsigned int bank3_bsr; /* 0x1c - Ext. Bank Base/Size Reg 3 */
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unsigned int bank4_bsr; /* 0x20 - Ext. Bank Base/Size Reg 4 */
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unsigned int bank5_bsr; /* 0x24 - Ext. Bank Base/Size Reg 5 */
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unsigned int bank6_bsr; /* 0x28 - Ext. Bank Base/Size Reg 6 */
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unsigned int bank7_bsr; /* 0x2c - Ext. Bank Base/Size Reg 7 */
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unsigned int ragr; /* 0x30 - Read Arbitration Group Reg */
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unsigned int frr; /* 0x34 - Flush Request Register */
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unsigned int ebisr; /* 0x38 - EBI Support Register */
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unsigned int rsved[25]; /* 0x3c-0x9c - Reserved */
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unsigned int crr; /* 0x100 - Controller Revision Reg */
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unsigned int cfr; /* 0x104 - Controller Feature Reg */
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};
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#endif /* __ASSEMBLY__ */
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/*
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* Timing Parameter 1 Register
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*/
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#define FTSDMC021_TP1_TCL(x) ((x) & 0x3) /* CAS Latency */
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#define FTSDMC021_TP1_TWR(x) (((x) & 0x3) << 4) /* W-Recovery Time */
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#define FTSDMC021_TP1_TRF(x) (((x) & 0xf) << 8) /* Auto-Refresh Cycle */
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#define FTSDMC021_TP1_TRCD(x) (((x) & 0x7) << 12) /* RAS-to-CAS Delay */
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#define FTSDMC021_TP1_TRP(x) (((x) & 0xf) << 16) /* Precharge Cycle */
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#define FTSDMC021_TP1_TRAS(x) (((x) & 0xf) << 20)
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/*
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* Timing Parameter 2 Register
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*/
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#define FTSDMC021_TP2_REF_INTV(x) ((x) & 0xffff) /* Refresh interval */
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/* b(16:19) - Initial Refresh Times */
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#define FTSDMC021_TP2_INI_REFT(x) (((x) & 0xf) << 16)
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/* b(20:23) - Initial Pre-Charge Times */
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#define FTSDMC021_TP2_INI_PREC(x) (((x) & 0xf) << 20)
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/*
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* SDRAM Configuration Register 1
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*/
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#define FTSDMC021_CR1_BNKSIZE(x) ((x) & 0xf) /* Bank Size */
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#define FTSDMC021_CR1_MBW(x) (((x) & 0x3) << 4) /* Bus Width */
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#define FTSDMC021_CR1_DSZ(x) (((x) & 0x7) << 8) /* SDRAM Size */
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#define FTSDMC021_CR1_DDW(x) (((x) & 0x3) << 12) /* Data Width */
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/* b(16) MA2T: Double Memory Address Cycle Enable */
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#define FTSDMC021_CR1_MA2T(x) (1 << 16)
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/* The value of b(0:3)CR1: 1M-512M, must be power of 2 */
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#define FTSDMC021_BANK_SIZE(x) (ffs(x) - 1)
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/*
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* Configuration Register 2
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*/
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#define FTSDMC021_CR2_SREF (1 << 0) /* Self-Refresh Mode */
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#define FTSDMC021_CR2_PWDN (1 << 1) /* Power Down Operation Mode */
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#define FTSDMC021_CR2_ISMR (1 << 2) /* Start Set-Mode-Register */
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#define FTSDMC021_CR2_IREF (1 << 3) /* Init Refresh Start Flag */
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#define FTSDMC021_CR2_IPREC (1 << 4) /* Init Pre-Charge Start Flag */
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#define FTSDMC021_CR2_REFTYPE (1 << 5)
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/*
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* SDRAM External Bank Base/Size Register
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*/
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#define FTSDMC021_BANK_ENABLE (1 << 12)
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/* 12-bit base address of external bank.
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* Default value is 0x800.
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* The 12-bit equals to the haddr[31:20] of AHB address bus. */
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#define FTSDMC021_BANK_BASE(x) ((x) & 0xfff)
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/*
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* Read Arbitration Grant Window Register
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*/
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#define FTSDMC021_RAGR_CH1GW(x) (((x) & 0xff) << 0)
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#define FTSDMC021_RAGR_CH2GW(x) (((x) & 0xff) << 4)
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#define FTSDMC021_RAGR_CH3GW(x) (((x) & 0xff) << 8)
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#define FTSDMC021_RAGR_CH4GW(x) (((x) & 0xff) << 12)
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#define FTSDMC021_RAGR_CH5GW(x) (((x) & 0xff) << 16)
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#define FTSDMC021_RAGR_CH6GW(x) (((x) & 0xff) << 20)
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#define FTSDMC021_RAGR_CH7GW(x) (((x) & 0xff) << 24)
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#define FTSDMC021_RAGR_CH8GW(x) (((x) & 0xff) << 28)
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/*
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* Flush Request Register
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*/
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#define FTSDMC021_FRR_FLUSHCHN(x) (((x) & 0x7) << 0)
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#define FTSDMC021_FRR_FLUSHCMPLT (1 << 3) /* Flush Req Flag */
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/*
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* External Bus Interface Support Register (EBISR)
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*/
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#define FTSDMC021_EBISR_MR(x) ((x) & 0xfff) /* Far-end mode */
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#define FTSDMC021_EBISR_PRSMR (1 << 12) /* Pre-SMR */
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#define FTSDMC021_EBISR_POPREC (1 << 13)
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#define FTSDMC021_EBISR_POSMR (1 << 14) /* Post-SMR */
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/*
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* Controller Revision Register (CRR, Read Only)
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*/
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#define FTSDMC021_CRR_REV_VER (((x) >> 0) & 0xff)
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#define FTSDMC021_CRR_MINOR_VER (((x) >> 8) & 0xff)
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#define FTSDMC021_CRR_MAJOR_VER (((x) >> 16) & 0xff)
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/*
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* Controller Feature Register (CFR, Read Only)
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*/
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#define FTSDMC021_CFR_EBNK (((x) >> 0) & 0xf)
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#define FTSDMC021_CFR_CHN (((x) >> 8) & 0xf)
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#define FTSDMC021_CFR_EBI (((x) >> 16) & 0x1)
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#define FTSDMC021_CFR_CH1_FDEPTH (((x) >> 24) & 0x1)
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#define FTSDMC021_CFR_CH2_FDEPTH (((x) >> 25) & 0x1)
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#define FTSDMC021_CFR_CH3_FDEPTH (((x) >> 26) & 0x1)
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#define FTSDMC021_CFR_CH4_FDEPTH (((x) >> 27) & 0x1)
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#define FTSDMC021_CFR_CH5_FDEPTH (((x) >> 28) & 0x1)
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#define FTSDMC021_CFR_CH6_FDEPTH (((x) >> 29) & 0x1)
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#define FTSDMC021_CFR_CH7_FDEPTH (((x) >> 30) & 0x1)
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#define FTSDMC021_CFR_CH8_FDEPTH (((x) >> 31) & 0x1)
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#endif /* __FTSDMC021_H */
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