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u-boot/drivers/ddr/mvebu/xor_regs.h
Stefan Roese f8d25d7466 arm: mvebu: drivers/ddr: Add DDR3 driver with training code from Marvell bin_hdr 
This patch adds the DDR3 setup and training code taken from the Marvell
U-Boot repository. This code used to be included as a binary (bin_hdr)
into the AXP boot image. Not linked with the main U-Boot. With this code
addition and the following serdes/PHY setup code, the Armada-XP support
in mainline U-Boot is finally self-contained. So the complete image
for booting can be built from mainline U-Boot. Without any additional
external inclusion. Hopefully other MVEBU SoC's will follow here.

Support for some SoC's has been removed in this version. This is:

MV_MSYS:
The code referred to by the MV_MSYS define is currently unused. And its
not really planned to support this in mainline. So lets remove it to
make the code clearer and increase the readability.

MV88F68XX (A38x):
The code referred to by the MV88F68XX define (A38x) is currently unused.
And its partial and not sufficient for this device in this stage.
So lets remove it to make the code clearer and increase the readability.

MV88F66XX (ALP):
The code referred to by the MV88F66XX define is currently unused. And its
not really planned to support this in mainline. So lets remove it to
make the code clearer and increase the readability.

MV88F78X60_Z1:
The code referred to by the MV88F78X60_Z1 define is currently unused. As the
Z1 revision of the AXP is not supported in mainline anymore.
So lets remove it to make the code clearer and increase the readability.

Remove support for Z1 & A0 AXP revisions (steppings). The current stepping
is B0 and this is the only one that is actively supported in this code
version.

Tested on AXP using a SPD DIMM setup on the Marvell DB-MV784MP-GP board and
on a custom fixed DDR configuration board (maxbcm).

Note:
This code has undergone many hours of coding-style cleanup and refactoring.
It still is not checkpatch clean though, I'm afraid. As the factoring of the
code has so many levels of indentation that many lines are longer than 80
chars. This might be some task to tackly later on.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Luka Perkov <luka.perkov@sartura.hr>
2015-02-06 17:25:03 +01:00

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/*
* Copyright (C) Marvell International Ltd. and its affiliates
*
* SPDX-License-Identifier: GPL-2.0
*/
#ifndef __XOR_REGS_H
#define __XOR_REGS_H
/*
* For controllers that have two XOR units, then chans 2 & 3 will be mapped
* to channels 0 & 1 of unit 1
*/
#define XOR_UNIT(chan) ((chan) >> 1)
#define XOR_CHAN(chan) ((chan) & 1)
#define MV_XOR_REGS_OFFSET(unit) (0x60900)
#define MV_XOR_REGS_BASE(unit) (MV_XOR_REGS_OFFSET(unit))
/* XOR Engine Control Register Map */
#define XOR_CHANNEL_ARBITER_REG(unit) (MV_XOR_REGS_BASE(unit))
#define XOR_CONFIG_REG(unit, chan) (MV_XOR_REGS_BASE(unit) + (0x10 + ((chan) * 4)))
#define XOR_ACTIVATION_REG(unit, chan) (MV_XOR_REGS_BASE(unit) + (0x20 + ((chan) * 4)))
/* XOR Engine Interrupt Register Map */
#define XOR_CAUSE_REG(unit) (MV_XOR_REGS_BASE(unit) + 0x30)
#define XOR_MASK_REG(unit) (MV_XOR_REGS_BASE(unit) + 0x40)
#define XOR_ERROR_CAUSE_REG(unit) (MV_XOR_REGS_BASE(unit) + 0x50)
#define XOR_ERROR_ADDR_REG(unit) (MV_XOR_REGS_BASE(unit) + 0x60)
/* XOR Engine Descriptor Register Map */
#define XOR_NEXT_DESC_PTR_REG(unit, chan) (MV_XOR_REGS_BASE(unit) + (0x200 + ((chan) * 4)))
#define XOR_CURR_DESC_PTR_REG(unit, chan) (MV_XOR_REGS_BASE(unit) + (0x210 + ((chan) * 4)))
#define XOR_BYTE_COUNT_REG(unit, chan) (MV_XOR_REGS_BASE(unit) + (0x220 + ((chan) * 4)))
#define XOR_DST_PTR_REG(unit, chan) (MV_XOR_REGS_BASE(unit) + (0x2B0 + ((chan) * 4)))
#define XOR_BLOCK_SIZE_REG(unit, chan) (MV_XOR_REGS_BASE(unit) + (0x2C0 + ((chan) * 4)))
#define XOR_TIMER_MODE_CTRL_REG(unit) (MV_XOR_REGS_BASE(unit) + 0x2D0)
#define XOR_TIMER_MODE_INIT_VAL_REG(unit) (MV_XOR_REGS_BASE(unit) + 0x2D4)
#define XOR_TIMER_MODE_CURR_VAL_REG(unit) (MV_XOR_REGS_BASE(unit) + 0x2D8)
#define XOR_INIT_VAL_LOW_REG(unit) (MV_XOR_REGS_BASE(unit) + 0x2E0)
#define XOR_INIT_VAL_HIGH_REG(unit) (MV_XOR_REGS_BASE(unit) + 0x2E4)
/* XOR register fileds */
/* XOR Engine [0..1] Configuration Registers (XExCR) */
#define XEXCR_OPERATION_MODE_OFFS (0)
#define XEXCR_OPERATION_MODE_MASK (7 << XEXCR_OPERATION_MODE_OFFS)
#define XEXCR_OPERATION_MODE_XOR (0 << XEXCR_OPERATION_MODE_OFFS)
#define XEXCR_OPERATION_MODE_CRC (1 << XEXCR_OPERATION_MODE_OFFS)
#define XEXCR_OPERATION_MODE_DMA (2 << XEXCR_OPERATION_MODE_OFFS)
#define XEXCR_OPERATION_MODE_ECC (3 << XEXCR_OPERATION_MODE_OFFS)
#define XEXCR_OPERATION_MODE_MEM_INIT (4 << XEXCR_OPERATION_MODE_OFFS)
#define XEXCR_SRC_BURST_LIMIT_OFFS (4)
#define XEXCR_SRC_BURST_LIMIT_MASK (7 << XEXCR_SRC_BURST_LIMIT_OFFS)
#define XEXCR_DST_BURST_LIMIT_OFFS (8)
#define XEXCR_DST_BURST_LIMIT_MASK (7 << XEXCR_DST_BURST_LIMIT_OFFS)
#define XEXCR_DRD_RES_SWP_OFFS (12)
#define XEXCR_DRD_RES_SWP_MASK (1 << XEXCR_DRD_RES_SWP_OFFS)
#define XEXCR_DWR_REQ_SWP_OFFS (13)
#define XEXCR_DWR_REQ_SWP_MASK (1 << XEXCR_DWR_REQ_SWP_OFFS)
#define XEXCR_DES_SWP_OFFS (14)
#define XEXCR_DES_SWP_MASK (1 << XEXCR_DES_SWP_OFFS)
#define XEXCR_REG_ACC_PROTECT_OFFS (15)
#define XEXCR_REG_ACC_PROTECT_MASK (1 << XEXCR_REG_ACC_PROTECT_OFFS)
/* XOR Engine [0..1] Activation Registers (XExACTR) */
#define XEXACTR_XESTART_OFFS (0)
#define XEXACTR_XESTART_MASK (1 << XEXACTR_XESTART_OFFS)
#define XEXACTR_XESTOP_OFFS (1)
#define XEXACTR_XESTOP_MASK (1 << XEXACTR_XESTOP_OFFS)
#define XEXACTR_XEPAUSE_OFFS (2)
#define XEXACTR_XEPAUSE_MASK (1 << XEXACTR_XEPAUSE_OFFS)
#define XEXACTR_XERESTART_OFFS (3)
#define XEXACTR_XERESTART_MASK (1 << XEXACTR_XERESTART_OFFS)
#define XEXACTR_XESTATUS_OFFS (4)
#define XEXACTR_XESTATUS_MASK (3 << XEXACTR_XESTATUS_OFFS)
#define XEXACTR_XESTATUS_IDLE (0 << XEXACTR_XESTATUS_OFFS)
#define XEXACTR_XESTATUS_ACTIVE (1 << XEXACTR_XESTATUS_OFFS)
#define XEXACTR_XESTATUS_PAUSED (2 << XEXACTR_XESTATUS_OFFS)
/* XOR Engine [0..1] Destination Pointer Register (XExDPR0) */
#define XEXDPR_DST_PTR_OFFS (0)
#define XEXDPR_DST_PTR_MASK (0xFFFFFFFF << XEXDPR_DST_PTR_OFFS)
#define XEXDPR_DST_PTR_XOR_MASK (0x3F)
#define XEXDPR_DST_PTR_DMA_MASK (0x1F)
#define XEXDPR_DST_PTR_CRC_MASK (0x1F)
/* XOR Engine[0..1] Block Size Registers (XExBSR) */
#define XEXBSR_BLOCK_SIZE_OFFS (0)
#define XEXBSR_BLOCK_SIZE_MASK (0xFFFFFFFF << XEXBSR_BLOCK_SIZE_OFFS)
#define XEXBSR_BLOCK_SIZE_MIN_VALUE (128)
#define XEXBSR_BLOCK_SIZE_MAX_VALUE (0xFFFFFFFF)
/* XOR Engine Address Decoding Register Map */
#define XOR_WINDOW_CTRL_REG(unit, chan) (MV_XOR_REGS_BASE(unit) + (0x240 + ((chan) * 4)))
#define XOR_BASE_ADDR_REG(unit, win) (MV_XOR_REGS_BASE(unit) + (0x250 + ((win) * 4)))
#define XOR_SIZE_MASK_REG(unit, win) (MV_XOR_REGS_BASE(unit) + (0x270 + ((win) * 4)))
#define XOR_HIGH_ADDR_REMAP_REG(unit, win) (MV_XOR_REGS_BASE(unit) + (0x290 + ((win) * 4)))
#define XOR_ADDR_OVRD_REG(unit, win) (MV_XOR_REGS_BASE(unit) + (0x2A0 + ((win) * 4)))
#endif /* __XOR_REGS_H */
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