arch/arm/mach-at91/include/mach/at91_mc.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (C) 2009 Jens Scharsig (js_at_ng@scharsoft.de)
   4  */
   5
   6 #ifndef AT91_MC_H
   7 #define AT91_MC_H
   8
   9 #define AT91_ASM_MC_EBI_CSA     (ATMEL_BASE_MC + 0x60)
  10 #define AT91_ASM_MC_EBI_CFG     (ATMEL_BASE_MC + 0x64)
  11 #define AT91_ASM_MC_SMC_CSR0    (ATMEL_BASE_MC + 0x70)
  12 #define AT91_ASM_MC_SDRAMC_MR   (ATMEL_BASE_MC + 0x90)
  13 #define AT91_ASM_MC_SDRAMC_TR   (ATMEL_BASE_MC + 0x94)
  14 #define AT91_ASM_MC_SDRAMC_CR   (ATMEL_BASE_MC + 0x98)
  15
  16 #ifndef __ASSEMBLY__
  17
  18 typedef struct at91_ebi {
  19         u32     csa;            /* 0x00 Chip Select Assignment Register */
  20         u32     cfgr;           /* 0x04 Configuration Register */
  21         u32     reserved[2];
  22 } at91_ebi_t;
  23
  24 #define AT91_EBI_CSA_CS0A       0x0001
  25 #define AT91_EBI_CSA_CS1A       0x0002
  26
  27 #define AT91_EBI_CSA_CS3A       0x0008
  28 #define AT91_EBI_CSA_CS4A       0x0010
  29
  30 typedef struct at91_sdramc {
  31         u32     mr;     /* 0x00 SDRAMC Mode Register */
  32         u32     tr;     /* 0x04 SDRAMC Refresh Timer Register */
  33         u32     cr;     /* 0x08 SDRAMC Configuration Register */
  34         u32     ssr;    /* 0x0C SDRAMC Self Refresh Register */
  35         u32     lpr;    /* 0x10 SDRAMC Low Power Register */
  36         u32     ier;    /* 0x14 SDRAMC Interrupt Enable Register */
  37         u32     idr;    /* 0x18 SDRAMC Interrupt Disable Register */
  38         u32     imr;    /* 0x1C SDRAMC Interrupt Mask Register */
  39         u32     icr;    /* 0x20 SDRAMC Interrupt Status Register */
  40         u32     reserved[3];
  41 } at91_sdramc_t;
  42
  43 typedef struct at91_smc {
  44         u32     csr[8];         /* 0x00 SDRAMC Mode Register */
  45 } at91_smc_t;
  46
  47 #define AT91_SMC_CSR_RWHOLD(x)          ((x & 0x7) << 28)
  48 #define AT91_SMC_CSR_RWSETUP(x)         ((x & 0x7) << 24)
  49 #define AT91_SMC_CSR_ACSS_STANDARD      0x00000000
  50 #define AT91_SMC_CSR_ACSS_1CYCLE        0x00010000
  51 #define AT91_SMC_CSR_ACSS_2CYCLE        0x00020000
  52 #define AT91_SMC_CSR_ACSS_3CYCLE        0x00030000
  53 #define AT91_SMC_CSR_DRP                0x00008000
  54 #define AT91_SMC_CSR_DBW_8              0x00004000
  55 #define AT91_SMC_CSR_DBW_16             0x00002000
  56 #define AT91_SMC_CSR_BAT_8              0x00000000
  57 #define AT91_SMC_CSR_BAT_16             0x00001000
  58 #define AT91_SMC_CSR_TDF(x)             ((x & 0xF) << 8)
  59 #define AT91_SMC_CSR_WSEN               0x00000080
  60 #define AT91_SMC_CSR_NWS(x)             (x & 0x7F)
  61
  62 typedef struct at91_bfc {
  63         u32     mr;     /* 0x00 SDRAMC Mode Register */
  64 } at91_bfc_t;
  65
  66 typedef struct at91_mc {
  67         u32             rcr;            /* 0x00 MC Remap Control Register */
  68         u32             asr;            /* 0x04 MC Abort Status Register */
  69         u32             aasr;           /* 0x08 MC Abort Address Status Reg */
  70         u32             mpr;            /* 0x0C MC Master Priority Register */
  71         u32             reserved1[20];  /* 0x10-0x5C */
  72         at91_ebi_t      ebi;            /* 0x60 - 0x6C EBI */
  73         at91_smc_t      smc;            /* 0x70 - 0x8C SMC User Interface */
  74         at91_sdramc_t   sdramc;         /* 0x90 - 0xBC SDRAMC User Interface */
  75         at91_bfc_t      bfc;            /* 0xC0 BFC User Interface */
  76         u32             reserved2[15];
  77 } at91_mc_t;
  78
  79 #endif
  80 #endif