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Diffstat (limited to 'src/flash/nor/at91sam7.h')
| -rw-r--r-- | src/flash/nor/at91sam7.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/src/flash/nor/at91sam7.h b/src/flash/nor/at91sam7.h new file mode 100644 index 00000000..45106869 --- /dev/null +++ b/src/flash/nor/at91sam7.h @@ -0,0 +1,118 @@ +/*************************************************************************** + * Copyright (C) 2006 by Magnus Lundin * + * lundin@mlu.mine.nu * + * * + * Copyright (C) 2006 by Gheorghe Guran (atlas) * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ + +#ifndef AT91SAM7_H +#define AT91SAM7_H + +#include "flash.h" + +struct at91sam7_flash_bank +{ + /* chip id register */ + uint32_t cidr; + uint16_t cidr_ext; + uint16_t cidr_nvptyp; + uint16_t cidr_arch; + uint16_t cidr_sramsiz; + uint16_t cidr_nvpsiz; + uint16_t cidr_nvpsiz2; + uint16_t cidr_eproc; + uint16_t cidr_version; + char *target_name; + + /* flash auto-detection */ + uint8_t flash_autodetection; + + /* flash geometry */ + uint16_t pages_per_sector; + uint16_t pagesize; + uint16_t pages_in_lockregion; + + /* nv memory bits */ + uint16_t num_lockbits_on; + uint16_t lockbits; + uint16_t num_nvmbits; + uint16_t num_nvmbits_on; + uint16_t nvmbits; + uint8_t securitybit; + + /* 0: not init + * 1: fmcn for nvbits (1uS) + * 2: fmcn for flash (1.5uS) */ + uint8_t flashmode; + + /* main clock status */ + uint8_t mck_valid; + uint32_t mck_freq; + + /* external clock frequency */ + uint32_t ext_freq; + +}; + + +/* AT91SAM7 control registers */ +#define DBGU_CIDR 0xFFFFF240 +#define CKGR_MCFR 0xFFFFFC24 +#define CKGR_MOR 0xFFFFFC20 +#define CKGR_MCFR_MAINRDY 0x10000 +#define CKGR_PLLR 0xFFFFFC2c +#define CKGR_PLLR_DIV 0xff +#define CKGR_PLLR_MUL 0x07ff0000 +#define PMC_MCKR 0xFFFFFC30 +#define PMC_MCKR_CSS 0x03 +#define PMC_MCKR_PRES 0x1c + +/* Flash Controller Commands */ +#define WP 0x01 +#define SLB 0x02 +#define WPL 0x03 +#define CLB 0x04 +#define EA 0x08 +#define SGPB 0x0B +#define CGPB 0x0D +#define SSB 0x0F + +/* MC_FSR bit definitions */ +#define MC_FSR_FRDY 1 +#define MC_FSR_EOL 2 + +/* AT91SAM7 constants */ +#define RC_FREQ 32000 + +/* Flash timing modes */ +#define FMR_TIMING_NONE 0 +#define FMR_TIMING_NVBITS 1 +#define FMR_TIMING_FLASH 2 + +/* Flash size constants */ +#define FLASH_SIZE_8KB 1 +#define FLASH_SIZE_16KB 2 +#define FLASH_SIZE_32KB 3 +#define FLASH_SIZE_64KB 5 +#define FLASH_SIZE_128KB 7 +#define FLASH_SIZE_256KB 9 +#define FLASH_SIZE_512KB 10 +#define FLASH_SIZE_1024KB 12 +#define FLASH_SIZE_2048KB 14 + +#endif /* AT91SAM7_H */ |