diff options
Diffstat (limited to 'include/asm-arm/arch-at91/at91_mc.h')
-rw-r--r-- | include/asm-arm/arch-at91/at91_mc.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/include/asm-arm/arch-at91/at91_mc.h b/include/asm-arm/arch-at91/at91_mc.h new file mode 100644 index 0000000..acfbd10 --- /dev/null +++ b/include/asm-arm/arch-at91/at91_mc.h @@ -0,0 +1,97 @@ +/* + * Copyright (C) 2009 Jens Scharsig (js_at_ng@scharsoft.de) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 AT91_MC_H +#define AT91_MC_H + +#define AT91_ASM_MC_EBI_CSA (AT91_MC_BASE + 0x60) +#define AT91_ASM_MC_EBI_CFG (AT91_MC_BASE + 0x64) +#define AT91_ASM_MC_SMC_CSR0 (AT91_MC_BASE + 0x70) +#define AT91_ASM_MC_SDRAMC_MR (AT91_MC_BASE + 0x90) +#define AT91_ASM_MC_SDRAMC_TR (AT91_MC_BASE + 0x94) +#define AT91_ASM_MC_SDRAMC_CR (AT91_MC_BASE + 0x98) + +#ifndef __ASSEMBLY__ + +typedef struct at91_ebi { + u32 csa; /* 0x00 Chip Select Assignment Register */ + u32 cfgr; /* 0x04 Configuration Register */ + u32 reserved[2]; +} __attribute__ ((packed)) at91_ebi_t; + +#define AT91_EBI_CSA_CS0A 0x0001 +#define AT91_EBI_CSA_CS1A 0x0002 + +#define AT91_EBI_CSA_CS3A 0x0008 +#define AT91_EBI_CSA_CS4A 0x0010 + +typedef struct at91_sdramc { + u32 mr; /* 0x00 SDRAMC Mode Register */ + u32 tr; /* 0x04 SDRAMC Refresh Timer Register */ + u32 cr; /* 0x08 SDRAMC Configuration Register */ + u32 ssr; /* 0x0C SDRAMC Self Refresh Register */ + u32 lpr; /* 0x10 SDRAMC Low Power Register */ + u32 ier; /* 0x14 SDRAMC Interrupt Enable Register */ + u32 idr; /* 0x18 SDRAMC Interrupt Disable Register */ + u32 imr; /* 0x1C SDRAMC Interrupt Mask Register */ + u32 icr; /* 0x20 SDRAMC Interrupt Status Register */ + u32 reserved[3]; +} __attribute__ ((packed)) at91_sdramc_t; + +typedef struct at91_smc { + u32 csr[8]; /* 0x00 SDRAMC Mode Register */ +} __attribute__ ((packed)) at91_smc_t; + +#define AT91_SMC_CSR_RWHOLD(x) ((x & 0x7) << 28) +#define AT91_SMC_CSR_RWSETUP(x) ((x & 0x7) << 24) +#define AT91_SMC_CSR_ACSS_STANDARD 0x00000000 +#define AT91_SMC_CSR_ACSS_1CYCLE 0x00010000 +#define AT91_SMC_CSR_ACSS_2CYCLE 0x00020000 +#define AT91_SMC_CSR_ACSS_3CYCLE 0x00030000 +#define AT91_SMC_CSR_DRP 0x00008000 +#define AT91_SMC_CSR_DBW_8 0x00004000 +#define AT91_SMC_CSR_DBW_16 0x00002000 +#define AT91_SMC_CSR_BAT_8 0x00000000 +#define AT91_SMC_CSR_BAT_16 0x00001000 +#define AT91_SMC_CSR_TDF(x) ((x & 0xF) << 8) +#define AT91_SMC_CSR_WSEN 0x00000080 +#define AT91_SMC_CSR_NWS(x) (x & 0x7F) + +typedef struct at91_bfc { + u32 mr; /* 0x00 SDRAMC Mode Register */ +} __attribute__ ((packed)) at91_bfc_t; + +typedef struct at91_mc { + u32 rcr; /* 0x00 MC Remap Control Register */ + u32 asr; /* 0x04 MC Abort Status Register */ + u32 aasr; /* 0x08 MC Abort Address Status Reg */ + u32 mpr; /* 0x0C MC Master Priority Register */ + u32 reserved1[20]; /* 0x10-0x5C */ + at91_ebi_t ebi; /* 0x60 - 0x6C EBI */ + at91_smc_t smc; /* 0x70 - 0x8C SMC User Interface */ + at91_sdramc_t sdramc; /* 0x90 - 0xBC SDRAMC User Interface */ + at91_bfc_t bfc; /* 0xC0 BFC User Interface */ + u32 reserved2[15]; +} __attribute__ ((packed)) at91_mc_t; + +#endif +#endif |