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| author | Moses Christopher <BollavarapuMoses.Christopher@in.bosch.com> | 2021-06-11 16:13:34 +0000 |
|---|---|---|
| committer | Lokesh Vutla <lokeshvutla@ti.com> | 2021-07-15 17:56:03 +0530 |
| commit | 050531db00474d7d298828d997f517205d8517dc (patch) | |
| tree | b05444fabafb8708177de76d20a57edcdb0889f4 /arch | |
| parent | 5dce6d226d03fd69e2318a4981194c4866bcf448 (diff) | |
| download | u-boot-050531db00474d7d298828d997f517205d8517dc.zip u-boot-050531db00474d7d298828d997f517205d8517dc.tar.gz u-boot-050531db00474d7d298828d997f517205d8517dc.tar.bz2 | |
am335x, guardian: mem: Add board dependent mem values
- 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
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/arch-am33xx/mem-guardian.h | 63 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/am33xx/board.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/mem-common.c | 4 |
3 files changed, 71 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-am33xx/mem-guardian.h b/arch/arm/include/asm/arch-am33xx/mem-guardian.h new file mode 100644 index 0000000..e864a0f --- /dev/null +++ b/arch/arm/include/asm/arch-am33xx/mem-guardian.h @@ -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_ */ diff --git a/arch/arm/mach-omap2/am33xx/board.c b/arch/arm/mach-omap2/am33xx/board.c index 62178f1..4bf0535 100644 --- a/arch/arm/mach-omap2/am33xx/board.c +++ b/arch/arm/mach-omap2/am33xx/board.c @@ -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> diff --git a/arch/arm/mach-omap2/mem-common.c b/arch/arm/mach-omap2/mem-common.c index 50d5f3e..2dcf0cf 100644 --- a/arch/arm/mach-omap2/mem-common.c +++ b/arch/arm/mach-omap2/mem-common.c @@ -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> |