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050531db00
- Add mem-guardian.h derived from am33xx/mem.h
* Add GPMC config values optimized for Bosch Guardian Board
* NAND Chip used by Bosch Guardian Board is Micron MT29F4G08ABBFA
Signed-off-by: Moses Christopher <BollavarapuMoses.Christopher@in.bosch.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210611161350.2141-3-Gireesh.Hiremath@in.bosch.com
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2006-2008
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* Texas Instruments, <www.ti.com>
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*
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* (C) Copyright 2020
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* Robert Bosch Power Tools GmbH
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*
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* Author
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* Moses Christopher <BollavarapuMoses.Christopher@in.bosch.com>
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*
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* Copied from:
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* arch/arm/include/asm/arch-am33xx/mem.h
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*
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* Initial Code from:
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* Mansoor Ahamed <mansoor.ahamed@ti.com>
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* Richard Woodruff <r-woodruff2@ti.com>
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*/
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#ifndef _MEM_GUARDIAN_H_
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#define _MEM_GUARDIAN_H_
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/*
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* GPMC settings -
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* Definitions is as per the following format
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* #define <PART>_GPMC_CONFIG<x> <value>
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* Where:
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* PART is the part name e.g. M_NAND - Micron Nand Flash
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* x is GPMC config registers from 1 to 7 (there will be 7 macros)
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* Value is corresponding value
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*
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* For every valid PRCM configuration there should be only one definition of
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* the same.
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*
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* The following values are optimized for improving the NAND Read speed
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* They are applicable and tested for Bosch Guardian Board.
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* Read Speeds rose from 1.5MiBs to over 7.6MiBs
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*
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* Currently valid part Names are (PART):
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* M_NAND - Micron NAND
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*/
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#define GPMC_SIZE_256M 0x0
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#define GPMC_SIZE_128M 0x8
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#define GPMC_SIZE_64M 0xC
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#define GPMC_SIZE_32M 0xE
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#define GPMC_SIZE_16M 0xF
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#define M_NAND_GPMC_CONFIG1 0x00000800
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#define M_NAND_GPMC_CONFIG2 0x00030300
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#define M_NAND_GPMC_CONFIG3 0x00030300
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#define M_NAND_GPMC_CONFIG4 0x02000201
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#define M_NAND_GPMC_CONFIG5 0x00030303
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#define M_NAND_GPMC_CONFIG6 0x000000C0
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#define M_NAND_GPMC_CONFIG7 0x00000008
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/* max number of GPMC Chip Selects */
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#define GPMC_MAX_CS 8
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/* max number of GPMC regs */
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#define GPMC_MAX_REG 7
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#define DBG_MPDB 6
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#endif /* endif _MEM_GUARDIAN_H_ */
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