diff options
Diffstat (limited to 'arch/arm/include/asm/arch-am33xx/mem-guardian.h')
-rw-r--r-- | arch/arm/include/asm/arch-am33xx/mem-guardian.h | 63 |
1 files changed, 63 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 0000000000..e864a0fd36 --- /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_ */ |