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- /*
- * Matrix-centric header file for the AT91SAM9N12
- *
- * Copyright (C) 2012 Atmel Corporation.
- *
- * Only EBI related registers.
- * Write Protect register definitions may be useful.
- *
- * Licensed under GPLv2 or later.
- */
- #ifndef _AT91SAM9N12_MATRIX_H_
- #define _AT91SAM9N12_MATRIX_H_
- #define AT91_MATRIX_EBICSA (AT91_MATRIX + 0x118) /* EBI Chip Select Assignment Register */
- #define AT91_MATRIX_EBI_CS1A (1 << 1) /* Chip Select 1 Assignment */
- #define AT91_MATRIX_EBI_CS1A_SMC (0 << 1)
- #define AT91_MATRIX_EBI_CS1A_SDRAMC (1 << 1)
- #define AT91_MATRIX_EBI_CS3A (1 << 3) /* Chip Select 3 Assignment */
- #define AT91_MATRIX_EBI_CS3A_SMC (0 << 3)
- #define AT91_MATRIX_EBI_CS3A_SMC_NANDFLASH (1 << 3)
- #define AT91_MATRIX_EBI_DBPUC (1 << 8) /* Data Bus Pull-up Configuration */
- #define AT91_MATRIX_EBI_DBPU_ON (0 << 8)
- #define AT91_MATRIX_EBI_DBPU_OFF (1 << 8)
- #define AT91_MATRIX_EBI_VDDIOMSEL (1 << 16) /* Memory voltage selection */
- #define AT91_MATRIX_EBI_VDDIOMSEL_1_8V (0 << 16)
- #define AT91_MATRIX_EBI_VDDIOMSEL_3_3V (1 << 16)
- #define AT91_MATRIX_EBI_EBI_IOSR (1 << 17) /* EBI I/O slew rate selection */
- #define AT91_MATRIX_EBI_EBI_IOSR_REDUCED (0 << 17)
- #define AT91_MATRIX_EBI_EBI_IOSR_NORMAL (1 << 17)
- #define AT91_MATRIX_EBI_DDR_IOSR (1 << 18) /* DDR2 dedicated port I/O slew rate selection */
- #define AT91_MATRIX_EBI_DDR_IOSR_REDUCED (0 << 18)
- #define AT91_MATRIX_EBI_DDR_IOSR_NORMAL (1 << 18)
- #define AT91_MATRIX_NFD0_SELECT (1 << 24) /* NAND Flash Data Bus Selection */
- #define AT91_MATRIX_NFD0_ON_D0 (0 << 24)
- #define AT91_MATRIX_NFD0_ON_D16 (1 << 24)
- #define AT91_MATRIX_DDR_MP_EN (1 << 25) /* DDR Multi-port Enable */
- #define AT91_MATRIX_MP_OFF (0 << 25)
- #define AT91_MATRIX_MP_ON (1 << 25)
- #define AT91_MATRIX_WPMR (AT91_MATRIX + 0x1E4) /* Write Protect Mode Register */
- #define AT91_MATRIX_WPMR_WPEN (1 << 0) /* Write Protect ENable */
- #define AT91_MATRIX_WPMR_WP_WPDIS (0 << 0)
- #define AT91_MATRIX_WPMR_WP_WPEN (1 << 0)
- #define AT91_MATRIX_WPMR_WPKEY (0xFFFFFF << 8) /* Write Protect KEY */
- #define AT91_MATRIX_WPSR (AT91_MATRIX + 0x1E8) /* Write Protect Status Register */
- #define AT91_MATRIX_WPSR_WPVS (1 << 0) /* Write Protect Violation Status */
- #define AT91_MATRIX_WPSR_NO_WPV (0 << 0)
- #define AT91_MATRIX_WPSR_WPV (1 << 0)
- #define AT91_MATRIX_WPSR_WPVSRC (0xFFFF << 8) /* Write Protect Violation Source */
- #endif
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