diff options
Diffstat (limited to 'arch/arm/mach-at91/include/mach/at91sam9_smc.h')
| -rw-r--r-- | arch/arm/mach-at91/include/mach/at91sam9_smc.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/include/mach/at91sam9_smc.h b/arch/arm/mach-at91/include/mach/at91sam9_smc.h new file mode 100644 index 0000000000..d29e98e711 --- /dev/null +++ b/arch/arm/mach-at91/include/mach/at91sam9_smc.h @@ -0,0 +1,76 @@ +/* + * [origin: Linux kernel include/asm-arm/arch-at91/at91sam9_smc.h] + * + * Copyright (C) 2007 Andrew Victor + * Copyright (C) 2007 Atmel Corporation. + * + * Static Memory Controllers (SMC) - System peripherals registers. + * Based on AT91SAM9261 datasheet revision D. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef AT91SAM9_SMC_H +#define AT91SAM9_SMC_H + +#ifdef __ASSEMBLY__ + +#ifndef ATMEL_BASE_SMC +#define ATMEL_BASE_SMC ATMEL_BASE_SMC0 +#endif + +#define AT91_ASM_SMC_SETUP0 ATMEL_BASE_SMC +#define AT91_ASM_SMC_PULSE0 (ATMEL_BASE_SMC + 0x04) +#define AT91_ASM_SMC_CYCLE0 (ATMEL_BASE_SMC + 0x08) +#define AT91_ASM_SMC_MODE0 (ATMEL_BASE_SMC + 0x0C) + +#else + +typedef struct at91_cs { + u32 setup; /* 0x00 SMC Setup Register */ + u32 pulse; /* 0x04 SMC Pulse Register */ + u32 cycle; /* 0x08 SMC Cycle Register */ + u32 mode; /* 0x0C SMC Mode Register */ +} at91_cs_t; + +typedef struct at91_smc { + at91_cs_t cs[8]; +} at91_smc_t; + +#endif /* __ASSEMBLY__ */ + +#define AT91_SMC_SETUP_NWE(x) (x & 0x3f) +#define AT91_SMC_SETUP_NCS_WR(x) ((x & 0x3f) << 8) +#define AT91_SMC_SETUP_NRD(x) ((x & 0x3f) << 16) +#define AT91_SMC_SETUP_NCS_RD(x) ((x & 0x3f) << 24) + +#define AT91_SMC_PULSE_NWE(x) (x & 0x7f) +#define AT91_SMC_PULSE_NCS_WR(x) ((x & 0x7f) << 8) +#define AT91_SMC_PULSE_NRD(x) ((x & 0x7f) << 16) +#define AT91_SMC_PULSE_NCS_RD(x) ((x & 0x7f) << 24) + +#define AT91_SMC_CYCLE_NWE(x) (x & 0x1ff) +#define AT91_SMC_CYCLE_NRD(x) ((x & 0x1ff) << 16) + +#define AT91_SMC_MODE_RM_NCS 0x00000000 +#define AT91_SMC_MODE_RM_NRD 0x00000001 +#define AT91_SMC_MODE_WM_NCS 0x00000000 +#define AT91_SMC_MODE_WM_NWE 0x00000002 + +#define AT91_SMC_MODE_EXNW_DISABLE 0x00000000 +#define AT91_SMC_MODE_EXNW_FROZEN 0x00000020 +#define AT91_SMC_MODE_EXNW_READY 0x00000030 + +#define AT91_SMC_MODE_BAT 0x00000100 +#define AT91_SMC_MODE_DBW_8 0x00000000 +#define AT91_SMC_MODE_DBW_16 0x00001000 +#define AT91_SMC_MODE_DBW_32 0x00002000 +#define AT91_SMC_MODE_TDF_CYCLE(x) ((x & 0xf) << 16) +#define AT91_SMC_MODE_TDF 0x00100000 +#define AT91_SMC_MODE_PMEN 0x01000000 +#define AT91_SMC_MODE_PS_4 0x00000000 +#define AT91_SMC_MODE_PS_8 0x10000000 +#define AT91_SMC_MODE_PS_16 0x20000000 +#define AT91_SMC_MODE_PS_32 0x30000000 + +#endif |