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cef8cdc0d0
Do not soft reset AC DLL as controller is buggy and this operation my introduce glitches in the controller leading to undefined behavior. Fixes:f0bbf17958("ARM: at91: pm: add self-refresh support for sama7g5") Depends-on:a02875c4cb("ARM: at91: pm: fix self-refresh for sama7g5") Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20221026124114.985876-2-claudiu.beznea@microchip.com
89 lines
4.6 KiB
C
89 lines
4.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Microchip SAMA7 UDDR Controller and DDR3 PHY Controller registers offsets
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* and bit definitions.
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*
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* Copyright (C) [2020] Microchip Technology Inc. and its subsidiaries
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*
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* Author: Claudu Beznea <claudiu.beznea@microchip.com>
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*/
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#ifndef __SAMA7_DDR_H__
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#define __SAMA7_DDR_H__
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/* DDR3PHY */
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#define DDR3PHY_PIR (0x04) /* DDR3PHY PHY Initialization Register */
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#define DDR3PHY_PIR_DLLBYP (1 << 17) /* DLL Bypass */
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#define DDR3PHY_PIR_ITMSRST (1 << 4) /* Interface Timing Module Soft Reset */
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#define DDR3PHY_PIR_DLLLOCK (1 << 2) /* DLL Lock */
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#define DDR3PHY_PIR_DLLSRST (1 << 1) /* DLL Soft Rest */
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#define DDR3PHY_PIR_INIT (1 << 0) /* Initialization Trigger */
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#define DDR3PHY_PGCR (0x08) /* DDR3PHY PHY General Configuration Register */
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#define DDR3PHY_PGCR_CKDV1 (1 << 13) /* CK# Disable Value */
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#define DDR3PHY_PGCR_CKDV0 (1 << 12) /* CK Disable Value */
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#define DDR3PHY_PGSR (0x0C) /* DDR3PHY PHY General Status Register */
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#define DDR3PHY_PGSR_IDONE (1 << 0) /* Initialization Done */
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#define DDR3PHY_ACDLLCR (0x14) /* DDR3PHY AC DLL Control Register */
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#define DDR3PHY_ACDLLCR_DLLSRST (1 << 30) /* DLL Soft Reset */
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#define DDR3PHY_ACIOCR (0x24) /* DDR3PHY AC I/O Configuration Register */
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#define DDR3PHY_ACIOCR_CSPDD_CS0 (1 << 18) /* CS#[0] Power Down Driver */
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#define DDR3PHY_ACIOCR_CKPDD_CK0 (1 << 8) /* CK[0] Power Down Driver */
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#define DDR3PHY_ACIORC_ACPDD (1 << 3) /* AC Power Down Driver */
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#define DDR3PHY_DXCCR (0x28) /* DDR3PHY DATX8 Common Configuration Register */
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#define DDR3PHY_DXCCR_DXPDR (1 << 3) /* Data Power Down Receiver */
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#define DDR3PHY_DSGCR (0x2C) /* DDR3PHY DDR System General Configuration Register */
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#define DDR3PHY_DSGCR_ODTPDD_ODT0 (1 << 20) /* ODT[0] Power Down Driver */
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#define DDR3PHY_ZQ0SR0 (0x188) /* ZQ status register 0 */
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#define DDR3PHY_ZQ0SR0_PDO_OFF (0) /* Pull-down output impedance select offset */
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#define DDR3PHY_ZQ0SR0_PUO_OFF (5) /* Pull-up output impedance select offset */
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#define DDR3PHY_ZQ0SR0_PDODT_OFF (10) /* Pull-down on-die termination impedance select offset */
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#define DDR3PHY_ZQ0SRO_PUODT_OFF (15) /* Pull-up on-die termination impedance select offset */
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#define DDR3PHY_DX0DLLCR (0x1CC) /* DDR3PHY DATX8 DLL Control Register */
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#define DDR3PHY_DX1DLLCR (0x20C) /* DDR3PHY DATX8 DLL Control Register */
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#define DDR3PHY_DXDLLCR_DLLDIS (1 << 31) /* DLL Disable */
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/* UDDRC */
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#define UDDRC_STAT (0x04) /* UDDRC Operating Mode Status Register */
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#define UDDRC_STAT_SELFREF_TYPE_DIS (0x0 << 4) /* SDRAM is not in Self-refresh */
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#define UDDRC_STAT_SELFREF_TYPE_PHY (0x1 << 4) /* SDRAM is in Self-refresh, which was caused by PHY Master Request */
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#define UDDRC_STAT_SELFREF_TYPE_SW (0x2 << 4) /* SDRAM is in Self-refresh, which was not caused solely under Automatic Self-refresh control */
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#define UDDRC_STAT_SELFREF_TYPE_AUTO (0x3 << 4) /* SDRAM is in Self-refresh, which was caused by Automatic Self-refresh only */
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#define UDDRC_STAT_SELFREF_TYPE_MSK (0x3 << 4) /* Self-refresh type mask */
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#define UDDRC_STAT_OPMODE_INIT (0x0 << 0) /* Init */
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#define UDDRC_STAT_OPMODE_NORMAL (0x1 << 0) /* Normal */
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#define UDDRC_STAT_OPMODE_PWRDOWN (0x2 << 0) /* Power-down */
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#define UDDRC_STAT_OPMODE_SELF_REFRESH (0x3 << 0) /* Self-refresh */
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#define UDDRC_STAT_OPMODE_MSK (0x7 << 0) /* Operating mode mask */
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#define UDDRC_PWRCTL (0x30) /* UDDRC Low Power Control Register */
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#define UDDRC_PWRCTL_SELFREF_EN (1 << 0) /* Automatic self-refresh */
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#define UDDRC_PWRCTL_SELFREF_SW (1 << 5) /* Software self-refresh */
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#define UDDRC_DFIMISC (0x1B0) /* UDDRC DFI Miscellaneous Control Register */
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#define UDDRC_DFIMISC_DFI_INIT_COMPLETE_EN (1 << 0) /* PHY initialization complete enable signal */
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#define UDDRC_SWCTRL (0x320) /* UDDRC Software Register Programming Control Enable */
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#define UDDRC_SWCTRL_SW_DONE (1 << 0) /* Enable quasi-dynamic register programming outside reset */
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#define UDDRC_SWSTAT (0x324) /* UDDRC Software Register Programming Control Status */
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#define UDDRC_SWSTAT_SW_DONE_ACK (1 << 0) /* Register programming done */
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#define UDDRC_PSTAT (0x3FC) /* UDDRC Port Status Register */
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#define UDDRC_PSTAT_ALL_PORTS (0x1F001F) /* Read + writes outstanding transactions on all ports */
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#define UDDRC_PCTRL_0 (0x490) /* UDDRC Port 0 Control Register */
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#define UDDRC_PCTRL_1 (0x540) /* UDDRC Port 1 Control Register */
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#define UDDRC_PCTRL_2 (0x5F0) /* UDDRC Port 2 Control Register */
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#define UDDRC_PCTRL_3 (0x6A0) /* UDDRC Port 3 Control Register */
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#define UDDRC_PCTRL_4 (0x750) /* UDDRC Port 4 Control Register */
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#endif /* __SAMA7_DDR_H__ */
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