diff options
Diffstat (limited to 'arch/arm/include/asm/arch-at91/at91_gpbr.h')
-rw-r--r-- | arch/arm/include/asm/arch-at91/at91_gpbr.h | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/arch/arm/include/asm/arch-at91/at91_gpbr.h b/arch/arm/include/asm/arch-at91/at91_gpbr.h deleted file mode 100644 index e781481e88..0000000000 --- a/arch/arm/include/asm/arch-at91/at91_gpbr.h +++ /dev/null @@ -1,42 +0,0 @@ -/* - * Copyright (C) 2010 - * Reinhard Meyer, reinhard.meyer@emk-elektronik.de - * - * General Purpose Backup Registers - * Based on AT91SAM9XE datasheet - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#ifndef AT91_GPBR_H -#define AT91_GPBR_H - -/* - * The Atmel AT91SAM9 series has a small resource of 4 nonvolatile - * 32 Bit registers (buffered by the Vbu power). - * - * Please consider carefully before using this resource for tasks - * that do not really need nonvolatile registers. Maybe you can - * store information in EEPROM or FLASH instead. - * - * However, if you use a GPBR please document its use here and - * reference the define in your code! - * - * known typical uses of the GPBRs: - * GPBR[0]: offset for RTT timekeeping (u-boot, kernel) - * GPBR[1]: unused - * GPBR[2]: unused - * GPBR[3]: bootcount (u-boot) - */ -#define AT91_GPBR_INDEX_TIMEOFF 0 -#define AT91_GPBR_INDEX_BOOTCOUNT 3 - -#ifndef __ASSEMBLY__ - -typedef struct at91_gpbr { - u32 reg[4]; -} at91_gpbr_t; - -#endif /* __ASSEMBLY__ */ - -#endif |