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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
139 lines
5.0 KiB
C
139 lines
5.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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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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/*
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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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