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456 lines
15 KiB
C
456 lines
15 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* JZ4780 DDR initialization - parameters definitions
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*
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* Copyright (c) 2015 Imagination Technologies
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* Author: Matt Redfearn <matt.redfearn.com>
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*/
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#ifndef __JZ4780_DRAM_H__
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#define __JZ4780_DRAM_H__
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/*
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* DDR
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*/
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#include <linux/bitops.h>
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#define DDRC_ST 0x0
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#define DDRC_CFG 0x4
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#define DDRC_CTRL 0x8
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#define DDRC_LMR 0xc
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#define DDRC_REFCNT 0x18
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#define DDRC_DQS 0x1c
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#define DDRC_DQS_ADJ 0x20
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#define DDRC_MMAP0 0x24
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#define DDRC_MMAP1 0x28
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#define DDRC_MDELAY 0x2c
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#define DDRC_CKEL 0x30
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#define DDRC_PMEMCTRL0 0x54
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#define DDRC_PMEMCTRL1 0x50
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#define DDRC_PMEMCTRL2 0x58
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#define DDRC_PMEMCTRL3 0x5c
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#define DDRC_TIMING(n) (0x60 + 4 * (n))
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#define DDRC_REMMAP(n) (0x9c + 4 * (n))
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/*
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* DDR PHY
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*/
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#define DDR_MEM_PHY_BASE 0x20000000
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#define DDR_PHY_OFFSET 0x1000
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#define DDRP_PIR 0x4
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#define DDRP_PGCR 0x8
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#define DDRP_PGSR 0xc
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#define DDRP_PTR0 0x18
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#define DDRP_PTR1 0x1c
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#define DDRP_PTR2 0x20
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#define DDRP_ACIOCR 0x24
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#define DDRP_DXCCR 0x28
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#define DDRP_DSGCR 0x2c
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#define DDRP_DCR 0x30
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#define DDRP_DTPR0 0x34
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#define DDRP_DTPR1 0x38
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#define DDRP_DTPR2 0x3c
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#define DDRP_MR0 0x40
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#define DDRP_MR1 0x44
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#define DDRP_MR2 0x48
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#define DDRP_MR3 0x4c
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#define DDRP_ODTCR 0x50
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#define DDRP_DTAR 0x54
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#define DDRP_DTDR0 0x58
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#define DDRP_DTDR1 0x5c
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#define DDRP_DCUAR 0xc0
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#define DDRP_DCUDR 0xc4
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#define DDRP_DCURR 0xc8
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#define DDRP_DCULR 0xcc
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#define DDRP_DCUGCR 0xd0
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#define DDRP_DCUTPR 0xd4
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#define DDRP_DCUSR0 0xd8
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#define DDRP_DCUSR1 0xdc
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#define DDRP_ZQXCR0(n) (0x180 + ((n) * 0x10))
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#define DDRP_ZQXCR1(n) (0x184 + ((n) * 0x10))
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#define DDRP_ZQXSR0(n) (0x188 + ((n) * 0x10))
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#define DDRP_ZQXSR1(n) (0x18c + ((n) * 0x10))
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#define DDRP_DXGCR(n) (0x1c0 + ((n) * 0x40))
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#define DDRP_DXGSR0(n) (0x1c4 + ((n) * 0x40))
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#define DDRP_DXGSR1(n) (0x1c8 + ((n) * 0x40))
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#define DDRP_DXDQSTR(n) (0x1d4 + ((n) * 0x40))
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/* DDRC Status Register */
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#define DDRC_ST_ENDIAN BIT(7)
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#define DDRC_ST_DPDN BIT(5)
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#define DDRC_ST_PDN BIT(4)
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#define DDRC_ST_AREF BIT(3)
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#define DDRC_ST_SREF BIT(2)
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#define DDRC_ST_CKE1 BIT(1)
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#define DDRC_ST_CKE0 BIT(0)
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/* DDRC Configure Register */
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#define DDRC_CFG_ROW1_BIT 27
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#define DDRC_CFG_ROW1_MASK (0x7 << DDRC_CFG_ROW1_BIT)
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#define DDRC_CFG_COL1_BIT 24
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#define DDRC_CFG_COL1_MASK (0x7 << DDRC_CFG_COL1_BIT)
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#define DDRC_CFG_BA1 BIT(23)
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#define DDRC_CFG_IMBA BIT(22)
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#define DDRC_CFG_BL_8 BIT(21)
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#define DDRC_CFG_TYPE_BIT 17
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#define DDRC_CFG_TYPE_MASK (0x7 << DDRC_CFG_TYPE_BIT)
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#define DDRC_CFG_TYPE_DDR1 (2 << DDRC_CFG_TYPE_BIT)
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#define DDRC_CFG_TYPE_MDDR (3 << DDRC_CFG_TYPE_BIT)
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#define DDRC_CFG_TYPE_DDR2 (4 << DDRC_CFG_TYPE_BIT)
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#define DDRC_CFG_TYPE_LPDDR2 (5 << DDRC_CFG_TYPE_BIT)
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#define DDRC_CFG_TYPE_DDR3 (6 << DDRC_CFG_TYPE_BIT)
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#define DDRC_CFG_ODT_EN BIT(16)
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#define DDRC_CFG_MPRT BIT(15)
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#define DDRC_CFG_ROW_BIT 11
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#define DDRC_CFG_ROW_MASK (0x7 << DDRC_CFG_ROW_BIT)
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#define DDRC_CFG_ROW_12 (0 << DDRC_CFG_ROW_BIT)
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#define DDRC_CFG_ROW_13 (1 << DDRC_CFG_ROW_BIT)
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#define DDRC_CFG_ROW_14 (2 << DDRC_CFG_ROW_BIT)
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#define DDRC_CFG_COL_BIT 8
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#define DDRC_CFG_COL_MASK (0x7 << DDRC_CFG_COL_BIT)
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#define DDRC_CFG_COL_8 (0 << DDRC_CFG_COL_BIT)
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#define DDRC_CFG_COL_9 (1 << DDRC_CFG_COL_BIT)
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#define DDRC_CFG_COL_10 (2 << DDRC_CFG_COL_BIT)
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#define DDRC_CFG_COL_11 (3 << DDRC_CFG_COL_BIT)
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#define DDRC_CFG_CS1EN BIT(7)
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#define DDRC_CFG_CS0EN BIT(6)
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#define DDRC_CFG_CL_BIT 2
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#define DDRC_CFG_CL_MASK (0xf << DDRC_CFG_CL_BIT)
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#define DDRC_CFG_CL_3 (0 << DDRC_CFG_CL_BIT)
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#define DDRC_CFG_CL_4 (1 << DDRC_CFG_CL_BIT)
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#define DDRC_CFG_CL_5 (2 << DDRC_CFG_CL_BIT)
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#define DDRC_CFG_CL_6 (3 << DDRC_CFG_CL_BIT)
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#define DDRC_CFG_BA BIT(1)
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#define DDRC_CFG_DW BIT(0)
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/* DDRC Control Register */
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#define DDRC_CTRL_DFI_RST BIT(23)
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#define DDRC_CTRL_DLL_RST BIT(22)
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#define DDRC_CTRL_CTL_RST BIT(21)
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#define DDRC_CTRL_CFG_RST BIT(20)
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#define DDRC_CTRL_ACTPD BIT(15)
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#define DDRC_CTRL_PDT_BIT 12
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#define DDRC_CTRL_PDT_MASK (0x7 << DDRC_CTRL_PDT_BIT)
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#define DDRC_CTRL_PDT_DIS (0 << DDRC_CTRL_PDT_BIT)
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#define DDRC_CTRL_PDT_8 (1 << DDRC_CTRL_PDT_BIT)
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#define DDRC_CTRL_PDT_16 (2 << DDRC_CTRL_PDT_BIT)
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#define DDRC_CTRL_PDT_32 (3 << DDRC_CTRL_PDT_BIT)
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#define DDRC_CTRL_PDT_64 (4 << DDRC_CTRL_PDT_BIT)
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#define DDRC_CTRL_PDT_128 (5 << DDRC_CTRL_PDT_BIT)
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#define DDRC_CTRL_PRET_BIT 8
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#define DDRC_CTRL_PRET_MASK (0x7 << DDRC_CTRL_PRET_BIT)
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#define DDRC_CTRL_PRET_DIS (0 << DDRC_CTRL_PRET_BIT)
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#define DDRC_CTRL_PRET_8 (1 << DDRC_CTRL_PRET_BIT)
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#define DDRC_CTRL_PRET_16 (2 << DDRC_CTRL_PRET_BIT)
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#define DDRC_CTRL_PRET_32 (3 << DDRC_CTRL_PRET_BIT)
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#define DDRC_CTRL_PRET_64 (4 << DDRC_CTRL_PRET_BIT)
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#define DDRC_CTRL_PRET_128 (5 << DDRC_CTRL_PRET_BIT)
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#define DDRC_CTRL_DPD BIT(6)
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#define DDRC_CTRL_SR BIT(5)
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#define DDRC_CTRL_UNALIGN BIT(4)
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#define DDRC_CTRL_ALH BIT(3)
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#define DDRC_CTRL_RDC BIT(2)
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#define DDRC_CTRL_CKE BIT(1)
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#define DDRC_CTRL_RESET BIT(0)
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/* DDRC Load-Mode-Register */
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#define DDRC_LMR_DDR_ADDR_BIT 16
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#define DDRC_LMR_DDR_ADDR_MASK (0x3fff << DDRC_LMR_DDR_ADDR_BIT)
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#define DDRC_LMR_BA_BIT 8
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#define DDRC_LMR_BA_MASK (0x7 << DDRC_LMR_BA_BIT)
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/* For DDR2 */
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#define DDRC_LMR_BA_MRS (0 << DDRC_LMR_BA_BIT)
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#define DDRC_LMR_BA_EMRS1 (1 << DDRC_LMR_BA_BIT)
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#define DDRC_LMR_BA_EMRS2 (2 << DDRC_LMR_BA_BIT)
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#define DDRC_LMR_BA_EMRS3 (3 << DDRC_LMR_BA_BIT)
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/* For mobile DDR */
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#define DDRC_LMR_BA_M_MRS (0 << DDRC_LMR_BA_BIT)
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#define DDRC_LMR_BA_M_EMRS (2 << DDRC_LMR_BA_BIT)
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#define DDRC_LMR_BA_M_SR (1 << DDRC_LMR_BA_BIT)
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/* For Normal DDR1 */
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#define DDRC_LMR_BA_N_MRS (0 << DDRC_LMR_BA_BIT)
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#define DDRC_LMR_BA_N_EMRS (1 << DDRC_LMR_BA_BIT)
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#define DDRC_LMR_CMD_BIT 4
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#define DDRC_LMR_CMD_MASK (0x3 << DDRC_LMR_CMD_BIT)
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#define DDRC_LMR_CMD_PREC (0 << DDRC_LMR_CMD_BIT)
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#define DDRC_LMR_CMD_AUREF (1 << DDRC_LMR_CMD_BIT)
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#define DDRC_LMR_CMD_LMR (2 << DDRC_LMR_CMD_BIT)
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#define DDRC_LMR_START BIT(0)
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/* DDRC Timing Config Register 1 */
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#define DDRC_TIMING1_TRTP_BIT 24
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#define DDRC_TIMING1_TRTP_MASK (0x3f << DDRC_TIMING1_TRTP_BIT)
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#define DDRC_TIMING1_TWTR_BIT 16
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#define DDRC_TIMING1_TWTR_MASK (0x3f << DDRC_TIMING1_TWTR_BIT)
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#define DDRC_TIMING1_TWTR_1 (0 << DDRC_TIMING1_TWTR_BIT)
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#define DDRC_TIMING1_TWTR_2 (1 << DDRC_TIMING1_TWTR_BIT)
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#define DDRC_TIMING1_TWTR_3 (2 << DDRC_TIMING1_TWTR_BIT)
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#define DDRC_TIMING1_TWTR_4 (3 << DDRC_TIMING1_TWTR_BIT)
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#define DDRC_TIMING1_TWR_BIT 8
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#define DDRC_TIMING1_TWR_MASK (0x3f << DDRC_TIMING1_TWR_BIT)
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#define DDRC_TIMING1_TWR_1 (0 << DDRC_TIMING1_TWR_BIT)
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#define DDRC_TIMING1_TWR_2 (1 << DDRC_TIMING1_TWR_BIT)
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#define DDRC_TIMING1_TWR_3 (2 << DDRC_TIMING1_TWR_BIT)
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#define DDRC_TIMING1_TWR_4 (3 << DDRC_TIMING1_TWR_BIT)
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#define DDRC_TIMING1_TWR_5 (4 << DDRC_TIMING1_TWR_BIT)
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#define DDRC_TIMING1_TWR_6 (5 << DDRC_TIMING1_TWR_BIT)
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#define DDRC_TIMING1_TWL_BIT 0
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#define DDRC_TIMING1_TWL_MASK (0x3f << DDRC_TIMING1_TWL_BIT)
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/* DDRC Timing Config Register 2 */
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#define DDRC_TIMING2_TCCD_BIT 24
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#define DDRC_TIMING2_TCCD_MASK (0x3f << DDRC_TIMING2_TCCD_BIT)
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#define DDRC_TIMING2_TRAS_BIT 16
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#define DDRC_TIMING2_TRAS_MASK (0x3f << DDRC_TIMING2_TRAS_BIT)
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#define DDRC_TIMING2_TRCD_BIT 8
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#define DDRC_TIMING2_TRCD_MASK (0x3f << DDRC_TIMING2_TRCD_BIT)
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#define DDRC_TIMING2_TRL_BIT 0
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#define DDRC_TIMING2_TRL_MASK (0x3f << DDRC_TIMING2_TRL_BIT)
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/* DDRC Timing Config Register 3 */
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#define DDRC_TIMING3_ONUM 27
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#define DDRC_TIMING3_TCKSRE_BIT 24
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#define DDRC_TIMING3_TCKSRE_MASK (0x3f << DDRC_TIMING3_TCKSRE_BIT)
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#define DDRC_TIMING3_TRP_BIT 16
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#define DDRC_TIMING3_TRP_MASK (0x3f << DDRC_TIMING3_TRP_BIT)
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#define DDRC_TIMING3_TRRD_BIT 8
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#define DDRC_TIMING3_TRRD_MASK (0x3f << DDRC_TIMING3_TRRD_BIT)
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#define DDRC_TIMING3_TRRD_DISABLE (0 << DDRC_TIMING3_TRRD_BIT)
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#define DDRC_TIMING3_TRRD_2 (1 << DDRC_TIMING3_TRRD_BIT)
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#define DDRC_TIMING3_TRRD_3 (2 << DDRC_TIMING3_TRRD_BIT)
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#define DDRC_TIMING3_TRRD_4 (3 << DDRC_TIMING3_TRRD_BIT)
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#define DDRC_TIMING3_TRC_BIT 0
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#define DDRC_TIMING3_TRC_MASK (0x3f << DDRC_TIMING3_TRC_BIT)
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/* DDRC Timing Config Register 4 */
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#define DDRC_TIMING4_TRFC_BIT 24
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#define DDRC_TIMING4_TRFC_MASK (0x3f << DDRC_TIMING4_TRFC_BIT)
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#define DDRC_TIMING4_TEXTRW_BIT 21
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#define DDRC_TIMING4_TEXTRW_MASK (0x7 << DDRC_TIMING4_TEXTRW_BIT)
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#define DDRC_TIMING4_TRWCOV_BIT 19
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#define DDRC_TIMING4_TRWCOV_MASK (0x3 << DDRC_TIMING4_TRWCOV_BIT)
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#define DDRC_TIMING4_TCKE_BIT 16
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#define DDRC_TIMING4_TCKE_MASK (0x7 << DDRC_TIMING4_TCKE_BIT)
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#define DDRC_TIMING4_TMINSR_BIT 8
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#define DDRC_TIMING4_TMINSR_MASK (0xf << DDRC_TIMING4_TMINSR_BIT)
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#define DDRC_TIMING4_TXP_BIT 4
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#define DDRC_TIMING4_TXP_MASK (0x7 << DDRC_TIMING4_TXP_BIT)
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#define DDRC_TIMING4_TMRD_BIT 0
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#define DDRC_TIMING4_TMRD_MASK (0x3 << DDRC_TIMING4_TMRD_BIT)
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/* DDRC Timing Config Register 5 */
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#define DDRC_TIMING5_TCTLUPD_BIT 24
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#define DDRC_TIMING4_TCTLUPD_MASK (0x3f << DDRC_TIMING5_TCTLUDP_BIT)
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#define DDRC_TIMING5_TRTW_BIT 16
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#define DDRC_TIMING5_TRTW_MASK (0x3f << DDRC_TIMING5_TRTW_BIT)
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#define DDRC_TIMING5_TRDLAT_BIT 8
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#define DDRC_TIMING5_TRDLAT_MASK (0x3f << DDRC_TIMING5_TRDLAT_BIT)
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#define DDRC_TIMING5_TWDLAT_BIT 0
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#define DDRC_TIMING5_TWDLAT_MASK (0x3f << DDRC_TIMING5_TWDLAT_BIT)
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/* DDRC Timing Config Register 6 */
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#define DDRC_TIMING6_TXSRD_BIT 24
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#define DDRC_TIMING6_TXSRD_MASK (0x3f << DDRC_TIMING6_TXSRD_BIT)
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#define DDRC_TIMING6_TFAW_BIT 16
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#define DDRC_TIMING6_TFAW_MASK (0x3f << DDRC_TIMING6_TFAW_BIT)
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#define DDRC_TIMING6_TCFGW_BIT 8
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#define DDRC_TIMING6_TCFGW_MASK (0x3f << DDRC_TIMING6_TCFGW_BIT)
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#define DDRC_TIMING6_TCFGR_BIT 0
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#define DDRC_TIMING6_TCFGR_MASK (0x3f << DDRC_TIMING6_TCFGR_BIT)
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/* DDRC Auto-Refresh Counter */
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#define DDRC_REFCNT_CON_BIT 16
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#define DDRC_REFCNT_CON_MASK (0xff << DDRC_REFCNT_CON_BIT)
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#define DDRC_REFCNT_CNT_BIT 8
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#define DDRC_REFCNT_CNT_MASK (0xff << DDRC_REFCNT_CNT_BIT)
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#define DDRC_REFCNT_CLKDIV_BIT 1
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#define DDRC_REFCNT_CLKDIV_MASK (0x7 << DDRC_REFCNT_CLKDIV_BIT)
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#define DDRC_REFCNT_REF_EN BIT(0)
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/* DDRC DQS Delay Control Register */
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#define DDRC_DQS_ERROR BIT(29)
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#define DDRC_DQS_READY BIT(28)
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#define DDRC_DQS_AUTO BIT(23)
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#define DDRC_DQS_DET BIT(24)
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#define DDRC_DQS_SRDET BIT(25)
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#define DDRC_DQS_CLKD_BIT 16
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#define DDRC_DQS_CLKD_MASK (0x3f << DDRC_DQS_CLKD_BIT)
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#define DDRC_DQS_WDQS_BIT 8
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#define DDRC_DQS_WDQS_MASK (0x3f << DDRC_DQS_WDQS_BIT)
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#define DDRC_DQS_RDQS_BIT 0
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#define DDRC_DQS_RDQS_MASK (0x3f << DDRC_DQS_RDQS_BIT)
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/* DDRC DQS Delay Adjust Register */
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#define DDRC_DQS_ADJWDQS_BIT 8
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#define DDRC_DQS_ADJWDQS_MASK (0x1f << DDRC_DQS_ADJWDQS_BIT)
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#define DDRC_DQS_ADJRDQS_BIT 0
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#define DDRC_DQS_ADJRDQS_MASK (0x1f << DDRC_DQS_ADJRDQS_BIT)
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/* DDRC Memory Map Config Register */
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#define DDRC_MMAP_BASE_BIT 8
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#define DDRC_MMAP_BASE_MASK (0xff << DDRC_MMAP_BASE_BIT)
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#define DDRC_MMAP_MASK_BIT 0
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#define DDRC_MMAP_MASK_MASK (0xff << DDRC_MMAP_MASK_BIT)
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#define DDRC_MMAP0_BASE (0x20 << DDRC_MMAP_BASE_BIT)
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#define DDRC_MMAP1_BASE_64M (0x24 << DDRC_MMAP_BASE_BIT)
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#define DDRC_MMAP1_BASE_128M (0x28 << DDRC_MMAP_BASE_BIT)
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#define DDRC_MMAP1_BASE_256M (0x30 << DDRC_MMAP_BASE_BIT)
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#define DDRC_MMAP_MASK_64_64 (0xfc << DDRC_MMAP_MASK_BIT)
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#define DDRC_MMAP_MASK_128_128 (0xf8 << DDRC_MMAP_MASK_BIT)
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#define DDRC_MMAP_MASK_256_256 (0xf0 << DDRC_MMAP_MASK_BIT)
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/* DDRP PHY Initialization Register */
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#define DDRP_PIR_INIT BIT(0)
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#define DDRP_PIR_DLLSRST BIT(1)
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#define DDRP_PIR_DLLLOCK BIT(2)
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#define DDRP_PIR_ZCAL BIT(3)
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#define DDRP_PIR_ITMSRST BIT(4)
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#define DDRP_PIR_DRAMRST BIT(5)
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#define DDRP_PIR_DRAMINT BIT(6)
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#define DDRP_PIR_QSTRN BIT(7)
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#define DDRP_PIR_EYETRN BIT(8)
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#define DDRP_PIR_DLLBYP BIT(17)
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/* DDRP PHY General Configurate Register */
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#define DDRP_PGCR_ITMDMD BIT(0)
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#define DDRP_PGCR_DQSCFG BIT(1)
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#define DDRP_PGCR_DFTCMP BIT(2)
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#define DDRP_PGCR_DFTLMT_BIT 3
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#define DDRP_PGCR_DTOSEL_BIT 5
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#define DDRP_PGCR_CKEN_BIT 9
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#define DDRP_PGCR_CKDV_BIT 12
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#define DDRP_PGCR_CKINV BIT(14)
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#define DDRP_PGCR_RANKEN_BIT 18
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#define DDRP_PGCR_ZCKSEL_32 (2 << 22)
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#define DDRP_PGCR_PDDISDX BIT(24)
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/* DDRP PHY General Status Register */
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#define DDRP_PGSR_IDONE BIT(0)
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#define DDRP_PGSR_DLDONE BIT(1)
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#define DDRP_PGSR_ZCDONE BIT(2)
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#define DDRP_PGSR_DIDONE BIT(3)
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#define DDRP_PGSR_DTDONE BIT(4)
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#define DDRP_PGSR_DTERR BIT(5)
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#define DDRP_PGSR_DTIERR BIT(6)
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#define DDRP_PGSR_DFTEERR BIT(7)
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/* DDRP DRAM Configuration Register */
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#define DDRP_DCR_TYPE_BIT 0
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#define DDRP_DCR_TYPE_MASK (0x7 << DDRP_DCR_TYPE_BIT)
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#define DDRP_DCR_TYPE_MDDR (0 << DDRP_DCR_TYPE_BIT)
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#define DDRP_DCR_TYPE_DDR (1 << DDRP_DCR_TYPE_BIT)
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#define DDRP_DCR_TYPE_DDR2 (2 << DDRP_DCR_TYPE_BIT)
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#define DDRP_DCR_TYPE_DDR3 (3 << DDRP_DCR_TYPE_BIT)
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#define DDRP_DCR_TYPE_LPDDR2 (4 << DDRP_DCR_TYPE_BIT)
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#define DDRP_DCR_DDR8BNK_BIT 3
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#define DDRP_DCR_DDR8BNK_MASK (1 << DDRP_DCR_DDR8BNK_BIT)
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#define DDRP_DCR_DDR8BNK (1 << DDRP_DCR_DDR8BNK_BIT)
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#define DDRP_DCR_DDR8BNK_DIS (0 << DDRP_DCR_DDR8BNK_BIT)
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#define DRP_DTRP1_RTODT BIT(11)
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#define DDRP_DXGCR_DXEN BIT(0)
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#define DDRP_ZQXCR_ZDEN_BIT 28
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#define DDRP_ZQXCR_ZDEN (1 << DDRP_ZQXCR_ZDEN_BIT)
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#define DDRP_ZQXCR_PULLUP_IMPE_BIT 5
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#define DDRP_ZQXCR_PULLDOWN_IMPE_BIT 0
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/* DDR3 Mode Register Set */
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#define DDR3_MR0_BL_BIT 0
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#define DDR3_MR0_BL_MASK (3 << DDR3_MR0_BL_BIT)
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#define DDR3_MR0_BL_8 (0 << DDR3_MR0_BL_BIT)
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#define DDR3_MR0_BL_fly (1 << DDR3_MR0_BL_BIT)
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#define DDR3_MR0_BL_4 (2 << DDR3_MR0_BL_BIT)
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#define DDR3_MR0_BT_BIT 3
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#define DDR3_MR0_BT_MASK (1 << DDR3_MR0_BT_BIT)
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#define DDR3_MR0_BT_SEQ (0 << DDR3_MR0_BT_BIT)
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#define DDR3_MR0_BT_INTER (1 << DDR3_MR0_BT_BIT)
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#define DDR3_MR0_WR_BIT 9
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#define DDR3_MR1_DLL_DISABLE 1
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#define DDR3_MR1_DIC_6 (0 << 5 | 0 << 1)
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#define DDR3_MR1_DIC_7 (0 << 5 | BIT(1))
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#define DDR3_MR1_RTT_DIS (0 << 9 | 0 << 6 | 0 << 2)
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#define DDR3_MR1_RTT_4 (0 << 9 | 0 << 6 | BIT(2))
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#define DDR3_MR1_RTT_2 (0 << 9 | BIT(6) | 0 << 2)
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#define DDR3_MR1_RTT_6 (0 << 9 | BIT(6) | BIT(2))
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#define DDR3_MR1_RTT_12 (BIT(9) | 0 << 6 | 0 << 2)
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#define DDR3_MR1_RTT_8 (BIT(9) | 0 << 6 | BIT(2))
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#define DDR3_MR2_CWL_BIT 3
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/* Parameters common to all RAM devices used */
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/* Chip Select */
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/* CSEN : whether a ddr chip exists 0 - un-used, 1 - used */
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#define DDR_CS0EN 1
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/* CSEN : whether a ddr chip exists 0 - un-used, 1 - used */
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#define DDR_CS1EN 0
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/* ROW : 12 to 18 row address, 1G only 512MB */
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#define DDR_ROW 15
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/* COL : 8 to 14 column address */
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#define DDR_COL 10
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/* Banks each chip: 0-4bank, 1-8bank */
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#define DDR_BANK8 1
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/* 0 - 16-bit data width, 1 - 32-bit data width */
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#define DDR_DW32 1
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/* Refresh period: 64ms / 32768 = 1.95 us , 2 ^ 15 = 32768 */
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#define DDR_tREFI 7800
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/* Clock Divider */
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#define DDR_CLK_DIV 1
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/* DDR3 Burst length: 0 - 8 burst, 2 - 4 burst , 1 - 4 or 8 (on the fly) */
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#define DDR_BL 8
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/* CAS latency: 5 to 14, tCK */
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#define DDR_CL 6
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/* DDR3 only: CAS Write Latency, 5 to 8 */
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#define DDR_tCWL (DDR_CL - 1)
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/* Structure representing per-RAM type configuration */
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struct jz4780_ddr_config {
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u32 timing[6]; /* Timing1..6 register value */
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/* DDR PHY control */
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u16 mr0; /* Mode Register 0 */
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u16 mr1; /* Mode Register 1 */
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u32 ptr0; /* PHY Timing Register 0 */
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u32 ptr1; /* PHY Timing Register 1 */
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u32 ptr2; /* PHY Timing Register 1 */
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u32 dtpr0; /* DRAM Timing Parameters Register 0 */
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u32 dtpr1; /* DRAM Timing Parameters Register 1 */
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u32 dtpr2; /* DRAM Timing Parameters Register 2 */
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u8 pullup; /* PHY pullup impedance */
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u8 pulldn; /* PHY pulldown impedance */
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};
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void pll_init(void);
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void sdram_init(void);
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#endif /* __JZ4780_DRAM_H__ */
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