Support registers definitions of ftsdmc021 SDRAM controller.
Signed-off-by: Macpaul Lin macpaul@andestech.com
Changes for v2: - Add __ASSEMBLY__ protecton to register offset for supporting lowlevel_init --- include/faraday/ftsdmc021.h | 154 +++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 154 insertions(+), 0 deletions(-) create mode 100644 include/faraday/ftsdmc021.h
diff --git a/include/faraday/ftsdmc021.h b/include/faraday/ftsdmc021.h new file mode 100644 index 0000000..3ed535a --- /dev/null +++ b/include/faraday/ftsdmc021.h @@ -0,0 +1,154 @@ +/* + * (C) Copyright 2009 Faraday Technology + * Po-Yu Chuang ratbert@faraday-tech.com + * + * (C) Copyright 2011 Andes Technology Corp + * Macpaul Lin macpaul@andestech.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +/* + * FTSDMC021 - SDRAM Controller + */ +#ifndef __FTSDMC021_H +#define __FTSDMC021_H + +#ifdef __ASSEMBLY__ +#define FTSDMC021_OFFSET_TP1 0x00 /* SDRAM Timing Parameter 1 */ +#define FTSDMC021_OFFSET_TP2 0x04 /* SDRAM Timing Parameter 2 */ +#define FTSDMC021_OFFSET_CR1 0x08 /* SDRAM Configuration Reg 1 */ +#define FTSDMC021_OFFSET_CR2 0x0C /* SDRAM Configuration Reg 2 */ +#define FTSDMC021_OFFSET_BANK0_BSR 0x10 /* External Bank Base/Size Reg 0 */ +#define FTSDMC021_OFFSET_BANK1_BSR 0x14 /* External Bank Base/Size Reg 1 */ +#define FTSDMC021_OFFSET_BANK2_BSR 0x18 /* External Bank Base/Size Reg 2 */ +#define FTSDMC021_OFFSET_BANK3_BSR 0x1C /* External Bank Base/Size Reg 3 */ +#define FTSDMC021_OFFSET_BANK4_BSR 0x20 /* External Bank Base/Size Reg 4 */ +#define FTSDMC021_OFFSET_BANK5_BSR 0x24 /* External Bank Base/Size Reg 5 */ +#define FTSDMC021_OFFSET_BANK6_BSR 0x28 /* External Bank Base/Size Reg 6 */ +#define FTSDMC021_OFFSET_BANK7_BSR 0x2C /* External Bank Base/Size Reg 7 */ +#define FTSDMC021_OFFSET_RAGR 0x30 /* Read Arbitration Group Reg */ +#define FTSDMC021_OFFSET_FRR 0x34 /* Flush Request Register */ +#define FTSDMC021_OFFSET_EBISR 0x38 /* EBI Support Register */ +#define FTSDMC021_OFFSET_CRR 0x100 /* Controller Revision Reg */ +#define FTSDMC021_OFFSET_CFR 0x104 /* Controller Feature Reg */ +#endif /* __ASSEMBLY__ */ + +/* + * Timing Parameter 1 Register + */ +#define FTSDMC021_TP1_TCL(x) ((x) & 0x3) +#define FTSDMC021_TP1_TWR(x) (((x) & 0x3) << 4) +#define FTSDMC021_TP1_TRF(x) (((x) & 0xf) << 8) +#define FTSDMC021_TP1_TRCD(x) (((x) & 0x7) << 12) +#define FTSDMC021_TP1_TRP(x) (((x) & 0xf) << 16) +#define FTSDMC021_TP1_TRAS(x) (((x) & 0xf) << 20) + +/* + * Timing Parameter 2 Register + */ +#define FTSDMC021_TP2_REF_INTV(x) ((x) & 0xffff) +#define FTSDMC021_TP2_INI_REFT(x) (((x) & 0xf) << 16) +#define FTSDMC021_TP2_INI_PREC(x) (((x) & 0xf) << 20) + +/* + * Configuration Register 1 + */ +#define FTSDMC021_CR1_BNKSIZEF(x) ((x) & 0xf) +#define FTSDMC021_CR1_MBW(x) (((x) & 0x3) << 4) +#define FTSDMC021_CR1_DSZ(x) (((x) & 0x7) << 8) +#define FTSDMC021_CR1_DDW(x) (((x) & 0x3) << 12) +#define FTSDMC021_CR1_MA2T(x) (1 << 16) /* Double Memory Address Cycle Enable */ + +/* + * Configuration Register 2 + */ +#define FTSDMC021_CR2_SREF (1 << 0) +#define FTSDMC021_CR2_PWDN (1 << 1) +#define FTSDMC021_CR2_ISMR (1 << 2) +#define FTSDMC021_CR2_IREF (1 << 3) +#define FTSDMC021_CR2_IPREC (1 << 4) +#define FTSDMC021_CR2_REFTYPE (1 << 5) + +/* + * SDRAM External Bank Base/Size Register + */ +#define FTSDMC021_BANK_ENABLE (1 << 12) + +/* 12-bit base address of external bank. + * Default value is 0x800. + * The 12-bit equals to the haddr[31:20] of AHB address bus. */ +#define FTSDMC021_BANK_BASE(x) ((x) & 0xfff) + +#define FTSDMC021_BANK_SIZE_1M 0x0 +#define FTSDMC021_BANK_SIZE_2M 0x1 +#define FTSDMC021_BANK_SIZE_4M 0x2 +#define FTSDMC021_BANK_SIZE_8M 0x3 +#define FTSDMC021_BANK_SIZE_16M 0x4 +#define FTSDMC021_BANK_SIZE_32M 0x5 +#define FTSDMC021_BANK_SIZE_64M 0x6 +#define FTSDMC021_BANK_SIZE_128M 0x7 +#define FTSDMC021_BANK_SIZE_256M 0x8 +#define FTSDMC021_BANK_SIZE_512M 0x9 + +/* + * Read Arbitration Grant Window Register + */ +#define FTSDMC021_RAGR_CH1GW(x) (((x) & 0xff) << 0) +#define FTSDMC021_RAGR_CH2GW(x) (((x) & 0xff) << 4) +#define FTSDMC021_RAGR_CH3GW(x) (((x) & 0xff) << 8) +#define FTSDMC021_RAGR_CH4GW(x) (((x) & 0xff) << 12) +#define FTSDMC021_RAGR_CH5GW(x) (((x) & 0xff) << 16) +#define FTSDMC021_RAGR_CH6GW(x) (((x) & 0xff) << 20) +#define FTSDMC021_RAGR_CH7GW(x) (((x) & 0xff) << 24) +#define FTSDMC021_RAGR_CH8GW(x) (((x) & 0xff) << 28) + +/* + * Flush Request Register + */ +#define FTSDMC021_FRR_FLUSHCHN(x) (((x) & 0x7) << 0) +#define FTSDMC021_FRR_FLUSHCMPLT (1 << 3) + +/* + * External Bus Interface Support Register (EBISR) + */ +#define FTSDMC021_EBISR_MR(x) ((x) & 0xfff) +#define FTSDMC021_EBISR_PRSMR (1 << 12) +#define FTSDMC021_EBISR_POPREC (1 << 13) +#define FTSDMC021_EBISR_POSMR (1 << 14) + +/* + * Controller Revision Register (CRR, Read Only) + */ +#define FTSDMC021_CRR_REV_VER (((x) >> 0) & 0xff) +#define FTSDMC021_CRR_MINOR_VER (((x) >> 8) & 0xff) +#define FTSDMC021_CRR_MAJOR_VER (((x) >> 16) & 0xff) + +/* + * Controller Feature Register (CFR, Read Only) + */ +#define FTSDMC021_CFR_EBNK (((x) >> 0) & 0xf) +#define FTSDMC021_CFR_CHN (((x) >> 8) & 0xf) +#define FTSDMC021_CFR_EBI (((x) >> 16) & 0x1) +#define FTSDMC021_CFR_CH1_FDEPTH (((x) >> 24) & 0x1) +#define FTSDMC021_CFR_CH2_FDEPTH (((x) >> 25) & 0x1) +#define FTSDMC021_CFR_CH3_FDEPTH (((x) >> 26) & 0x1) +#define FTSDMC021_CFR_CH4_FDEPTH (((x) >> 27) & 0x1) +#define FTSDMC021_CFR_CH5_FDEPTH (((x) >> 28) & 0x1) +#define FTSDMC021_CFR_CH6_FDEPTH (((x) >> 29) & 0x1) +#define FTSDMC021_CFR_CH7_FDEPTH (((x) >> 30) & 0x1) +#define FTSDMC021_CFR_CH8_FDEPTH (((x) >> 31) & 0x1) + +#endif /* __FTSDMC021_H */