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am335x, guardian: mem: Add board dependent mem values

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- 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
This commit is contained in:
Moses Christopher 2021-06-11 16:13:34 +00:00 committed by Lokesh Vutla
parent 5dce6d226d
commit 050531db00
4 changed files with 72 additions and 1 deletions
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63
arch/arm/include/asm/arch-am33xx/mem-guardian.h Normal file
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@ -0,0 +1,63 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2006-2008
* Texas Instruments, <www.ti.com>
*
* (C) Copyright 2020
* Robert Bosch Power Tools GmbH
*
* Author
* Moses Christopher <BollavarapuMoses.Christopher@in.bosch.com>
*
* Copied from:
* arch/arm/include/asm/arch-am33xx/mem.h
*
* Initial Code from:
* Mansoor Ahamed <mansoor.ahamed@ti.com>
* Richard Woodruff <r-woodruff2@ti.com>
*/
#ifndef _MEM_GUARDIAN_H_
#define _MEM_GUARDIAN_H_
/*
* GPMC settings -
* Definitions is as per the following format
* #define <PART>_GPMC_CONFIG<x> <value>
* Where:
* PART is the part name e.g. M_NAND - Micron Nand Flash
* x is GPMC config registers from 1 to 7 (there will be 7 macros)
* Value is corresponding value
*
* For every valid PRCM configuration there should be only one definition of
* the same.
*
* The following values are optimized for improving the NAND Read speed
* They are applicable and tested for Bosch Guardian Board.
* Read Speeds rose from 1.5MiBs to over 7.6MiBs
*
* Currently valid part Names are (PART):
* M_NAND - Micron NAND
*/
#define GPMC_SIZE_256M 0x0
#define GPMC_SIZE_128M 0x8
#define GPMC_SIZE_64M 0xC
#define GPMC_SIZE_32M 0xE
#define GPMC_SIZE_16M 0xF
#define M_NAND_GPMC_CONFIG1 0x00000800
#define M_NAND_GPMC_CONFIG2 0x00030300
#define M_NAND_GPMC_CONFIG3 0x00030300
#define M_NAND_GPMC_CONFIG4 0x02000201
#define M_NAND_GPMC_CONFIG5 0x00030303
#define M_NAND_GPMC_CONFIG6 0x000000C0
#define M_NAND_GPMC_CONFIG7 0x00000008
/* max number of GPMC Chip Selects */
#define GPMC_MAX_CS 8
/* max number of GPMC regs */
#define GPMC_MAX_REG 7
#define DBG_MPDB 6
#endif /* endif _MEM_GUARDIAN_H_ */

4
arch/arm/mach-omap2/am33xx/board.c
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@ -23,7 +23,11 @@
#include <asm/arch/clock.h>
#include <asm/arch/gpio.h>
#include <asm/arch/i2c.h>
#if IS_ENABLED(CONFIG_TARGET_AM335X_GUARDIAN)
#include <asm/arch/mem-guardian.h>
#else
#include <asm/arch/mem.h>
#endif
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/sys_proto.h>
#include <asm/global_data.h>

4
arch/arm/mach-omap2/mem-common.c
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@ -15,7 +15,11 @@
#include <common.h>
#include <asm/io.h>
#include <asm/arch/cpu.h>
#if IS_ENABLED(CONFIG_TARGET_AM335X_GUARDIAN)
#include <asm/arch/mem-guardian.h>
#else
#include <asm/arch/mem.h>
#endif
#include <asm/arch/sys_proto.h>
#include <command.h>
#include <linux/mtd/omap_gpmc.h>

2
board/bosch/guardian/board.c
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@ -29,7 +29,7 @@
#include <asm/arch/ddr_defs.h>
#include <asm/arch/gpio.h>
#include <asm/arch/hardware.h>
#include <asm/arch/mem.h>
#include <asm/arch/mem-guardian.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/omap.h>
#include <asm/arch/sys_proto.h>