Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

#ifndef _OR32_MC2_H

#define _OR32_MC2_H 

#if CONFIG_OR32_MC_VERSION==2

#ifdef CONFIG_OR32_HIGHLAND_DEFAULT_MEMORY_TIMINGS

//#  define CONFIG_OR32_FLASH_INTEL_J3

#  define CONFIG_OR32_FLASH_BENDER_2

#  define CONFIG_OR32_SDRAM_MICRON_MT48LC16M16A2_TC_75D

#elif CONFIG_OR32_GENERIC_MEMORY_TIMINGS

/* FLASH timings: worst cases in ns, from data sheets */

#  define FLASH_WA_TIME           CONFIG_OR32_FLASH_WA_TIME

#  define FLASH_WE_DELAY          CONFIG_OR32_FLASH_WE_DELAY

#  define FLASH_WH_TIME           CONFIG_OR32_FLASH_WH_TIME

#  define FLASH_RA_TIME           CONFIG_OR32_FLASH_RA_TIME

#  define FLASH_PRA_TIME          CONFIG_OR32_FLASH_PRA_TIME

#  define FLASH_RT_TIME           CONFIG_OR32_FLASH_RT_TIME

/* SDRAM timings: worst cases in ns, from data sheets */

#  define SDRAM_tRCD              CONFIG_OR32_SDRAM_tRCD

#  define SDRAM_tWR               CONFIG_OR32_SDRAM_tWR

#  define SDRAM_tRC               CONFIG_OR32_SDRAM_tRC

#  define SDRAM_tRFC              CONFIG_OR32_SDRAM_tRFC

#  define SDRAM_tRAS              CONFIG_OR32_SDRAM_tRAS

#  define SDRAM_tRP               CONFIG_OR32_SDRAM_tRP

#  define SDRAM_tRRD              CONFIG_OR32_SDRAM_tRRD

#  define SDRAM_tREF              CONFIG_OR32_SDRAM_tREF

#else

#  error "no timings defined"

#endif

#endif

/* ----------------------------------------------------[ memory timings ]--- */

/* FLASH timings: worst cases in ns, from data sheets */

#ifdef CONFIG_OR32_FLASH_INTEL_J3

#  define FLASH_WA_TIME           150+10 /* write access*/

#  define FLASH_WE_DELAY          0   /* write enable*/

#  define FLASH_WH_TIME           0   /* write hold */

#  define FLASH_RA_TIME           120+10 /* read access*/

#  define FLASH_PRA_TIME          25  /* page read access time */

#  define FLASH_RT_TIME           15  /* read turnaround time */

#endif /* CONFIG_OR32_FLASH_INTEL_J3 */

#ifdef CONFIG_OR32_FLASH_BENDER_2

#  define FLASH_WA_TIME           50  /* write access*/

#  define FLASH_WE_DELAY          0   /* write enable*/

#  define FLASH_WH_TIME           0   /* write hold */

#  define FLASH_RA_TIME           95  /* read access*/

#  define FLASH_PRA_TIME          25  /* page read access time */

#  define FLASH_RT_TIME           24  /* read turnaround time */

#endif /* CONFIG_OR32_FLASH_BENDER_2 */

/* SDRAM timings: worst cases in ns, from data sheets */

#ifdef CONFIG_OR32_SDRAM_MICRON_MT48LC16M16A2_TC_75D

#  define SDRAM_tRCD              20

#  define SDRAM_tWR               15 /* ?? */

#  define SDRAM_tRC               66

#  define SDRAM_tRFC              66 /* sometimes the same as tRC */

#  define SDRAM_tRAS              44 /* use the worst case minimal value */

#  define SDRAM_tRP               20

#  define SDRAM_tRRD              15

#  define SDRAM_tREF              ((64000000/8192)+1)

#endif /* CONFIG_OR32_SDRAM_MICRON_MT48LC16M16A2_TC_75D */

#ifdef CONFIG_OR32_SDRAM_BENDER_2

#  define SDRAM_tRCD              23

#  define SDRAM_tWR               20

#  define SDRAM_tRC               60

#  define SDRAM_tRFC              60 /* sometimes the same as tRC */

#  define SDRAM_tRAS              50 /* use the worst case minimal value */

#  define SDRAM_tRP               23

#  define SDRAM_tRRD              15

#  define SDRAM_tREF              ((64000000/8192)+1)

#endif /* CONFIG_OR32_SDRAM_BENDER_2 */

/* -------------------------------------------------------[ calculation ]--- */

#if CONFIG_OR32_MC_VERSION==1

/* Memory controller initialize values */

#  if CONFIG_OR32_SYS_CLK==25

#    define MC_CSR_VAL      0x0B000300

#    define MC_MASK_VAL     0x000003f0

#    define FLASH_TMS_VAL   0x00000103

#    define SDRAM_BASE_ADD  0x00000000

#    define SDRAM_TMS_VAL   0x19220057

#  elif CONFIG_OR32_SYS_CLK==48

#    warning Timings for 48Mhz are taken the same as for 25MHz

#    define MC_CSR_VAL      0x0B000300

#    define MC_MASK_VAL     0x000003f0

#    define FLASH_TMS_VAL   0x00000103

#    define SDRAM_BASE_ADD  0x00000000

#    define SDRAM_TMS_VAL   0x19220057

#  elif CONFIG_OR32_SYS_CLK==100

#    define MC_CSR_VAL      0x0B000300

#    define MC_MASK_VAL     0x000003f0

#    define FLASH_TMS_VAL   0x0000010c

#    define SDRAM_BASE_ADD  0x00000000

#    define SDRAM_TMS_VAL   0x2a5a0300

#  elif CONFIG_OR32_SYS_CLK==120

     /* Sandi guarantees timings are ok */

#    define MC_CSR_VAL      0x0B000300

#    define MC_MASK_VAL     0x000003f0

#    define FLASH_TMS_VAL   0x0000010c

#    define SDRAM_BASE_ADD  0x00000000

#    define SDRAM_TMS_VAL   0x2a5a0300

#  else

#    error  No MC ver. 1 initialization values for this frequency

#  endif

#elif CONFIG_OR32_MC_VERSION==2

#  define FLASH_BAR_VAL   FLASH_BASE_ADD

#  define FLASH_AMR_VAL   0xf0000000     /* address mask register */

#  define SDRAM_BASE_ADDR 0x00000000

#  define SDRAM_SIZE      0x02000000

#  define SDRAM_BAR_VAL   SDRAM_BASE_ADDR

#  define SDRAM_AMR_VAL   (~(SDRAM_SIZE-1))

/* independant from flash properties, always 0 ;)   */

#  define FLASH_OE_DELAY  0              /* output enable */

// define FLASH_WTR_VAL   0x00011009 /* write timings */

#  define FLASH_WTR_VAL   ((0x000003ff & (FLASH_WA_TIME /SYS_CLK_PERIOD)) | \

                           (0x0000f000 & (FLASH_WE_DELAY/SYS_CLK_PERIOD)<<12) | \

                           (0x001f0000 & (FLASH_WH_TIME /SYS_CLK_PERIOD)<<16))

// define FLASH_RTR_VAL   0x01002009 /* read timings */

#  define FLASH_RTR_VAL   ((0x000003ff & (FLASH_RA_TIME /SYS_CLK_PERIOD)) | \

                           (0x0000f000 & (FLASH_OE_DELAY/SYS_CLK_PERIOD)<<12) | \

                           (0x001f0000 & (FLASH_PRA_TIME/SYS_CLK_PERIOD)<<16) | \

                           (0x1f000000 & (FLASH_RT_TIME /SYS_CLK_PERIOD)<<24))

/* round this value down:

 * if it's 30 / 10 -> we want 2, so it's ok, 31 / 10 -> we want 3

 *

 * define SDRAM_RCDR_VAL  0x00000002

 */

#  define SDRAM_RCDR_VAL  ((SDRAM_tRCD-1)/SYS_CLK_PERIOD)

// prviously undefined

#  define SDRAM_WRTR_VAL  (((SDRAM_tWR+(SYS_CLK_PERIOD-1))/SYS_CLK_PERIOD)-1)

#  if SDRAM_WRTR_VAL<0

#    undef  SDRAM_WRTR_VAL

#    define SDRAM_WRTR_VAL 0

#  endif

// define SDRAM_RCTR_VAL  0x00000006

#  define SDRAM_RCTR_VAL  (((SDRAM_tRC+(SYS_CLK_PERIOD-1))/SYS_CLK_PERIOD)-1)

#  if SDRAM_RCTR_VAL<0

#    undef  SDRAM_RCTR_VAL

#    define SDRAM_RCTR_VAL 0

#  endif

// define SDRAM_REFCTR_VAL 0x00000006

#  define SDRAM_REFCTR_VAL (((SDRAM_tRFC+(SYS_CLK_PERIOD-1))/SYS_CLK_PERIOD)-1)

#  if SDRAM_REFCTR_VAL<0

#    undef  SDRAM_REFCTR_VAL

#    define SDRAM_REFCTR_VAL 0

#  endif

// define SDRAM_RATR_VAL  0x00000006

#  define SDRAM_RATR_VAL  (((SDRAM_tRAS+(SYS_CLK_PERIOD-1))/SYS_CLK_PERIOD)-1)

#  if SDRAM_RATR_VAL<0

#    undef  SDRAM_RATR_VAL

#    define SDRAM_RATR_VAL 0

#  endif

// define SDRAM_PTR_VAL   0x00000001

#  define SDRAM_PTR_VAL   (((SDRAM_tRP+(SYS_CLK_PERIOD-1))/SYS_CLK_PERIOD)-1)

#  if SDRAM_PTR_VAL<0

#    undef  SDRAM_PTR_VAL

#    define SDRAM_PTR_VAL 0

#  endif

// define SDRAM_RRDR_VAL  0x00000000

#  define SDRAM_RRDR_VAL  (((SDRAM_tRRD+(SYS_CLK_PERIOD-1))/SYS_CLK_PERIOD)-1)

#  if SDRAM_RRDR_VAL<0

#    undef  SDRAM_RRDR_VAL

#    define SDRAM_RRDR_VAL 0

#  endif

/*

 * we don't want to go to the edge with refresh delays

 * define SDRAM_RIR_VAL   0x00000300

 */

#  define SDRAM_RIR_VAL   ((SDRAM_tREF/SYS_CLK_PERIOD)-((SDRAM_tREF/SYS_CLK_PERIOD)+10)/10)

/* ------------------------------------------------------[ MC registers ]--- */

#  define MC_BAR_0        (0x00)

#  define MC_AMR_0        (0x04)

#  define MC_BAR_1        (0x08)

#  define MC_AMR_1        (0x0c)

#  define MC_BAR_2        (0x10)

#  define MC_AMR_2        (0x14)

#  define MC_BAR_3        (0x18)

#  define MC_AMR_3        (0x1c)

#  define MC_CCR_0        (0x20)

#  define MC_CCR_1        (0x24)

#  define MC_CCR_2        (0x28)

#  define MC_CCR_3        (0x2c)

#  define MC_WTR_0        (0x30)

#  define MC_RTR_0        (0x34)

#  define MC_WTR_1        (0x38)

#  define MC_RTR_1        (0x3c)

#  define MC_WTR_2        (0x40)

#  define MC_RTR_2        (0x44)

#  define MC_WTR_3        (0x48)

#  define MC_RTR_3        (0x4c)

#  define MC_BAR_4        (0x80)

#  define MC_AMR_4        (0x84)

#  define MC_BAR_5        (0x88)

#  define MC_AMR_5        (0x8c)

#  define MC_BAR_6        (0x90)

#  define MC_AMR_6        (0x94)

#  define MC_BAR_7        (0x98)

#  define MC_AMR_7        (0x9c)

#  define MC_CCR_4        (0xa0)

#  define MC_CCR_5        (0xa4)

#  define MC_CCR_6        (0xa8)

#  define MC_CCR_7        (0xac)

#  define MC_RATR         (0xb0)  /* row active time register  */

#  define MC_RCTR         (0xb4)

#  define MC_RRDR         (0xb8)

#  define MC_PTR          (0xbc)

#  define MC_WRTR         (0xc0)

#  define MC_REFCTR       (0xc4)

#  define MC_RCDR         (0xc8)

#  define MC_RIR          (0xcc)

#  define MC_SMBOR        (0xe0)

#  define MC_ORR          (0xe4)

#  define MC_OSR          (0xe8)

#  define MC_PCR          (0xec)

#  define MC_IIR          (0xf0)

/* POC register field definition */

#  define MC_POC_EN_BW_OFFSET             0

#  define MC_POC_EN_BW_WIDTH              2

#  define MC_POC_EN_MEMTYPE_OFFSET        2

#  define MC_POC_EN_MEMTYPE_WIDTH         2

/* CSC register field definition */

#  define MC_CSC_EN_OFFSET                0

#  define MC_CSC_MEMTYPE_OFFSET           1

#  define MC_CSC_MEMTYPE_WIDTH            2

#  define MC_CSC_BW_OFFSET                4

#  define MC_CSC_BW_WIDTH                 2

#  define MC_CSC_MS_OFFSET                6

#  define MC_CSC_MS_WIDTH                 2

#  define MC_CSC_WP_OFFSET                8

#  define MC_CSC_BAS_OFFSET               9

#  define MC_CSC_KRO_OFFSET               10

#  define MC_CSC_PEN_OFFSET               11

#  define MC_CSC_SEL_OFFSET               16

#  define MC_CSC_SEL_WIDTH                8

#  define MC_CSC_MEMTYPE_SDRAM            0

#  define MC_CSC_MEMTYPE_SSRAM            1

#  define MC_CSC_MEMTYPE_ASYNC            2

#  define MC_CSC_MEMTYPE_SYNC             3

#  define MC_CSR_VALID                    0xFF000703LU

#  define MC_POC_VALID                    0x0000000FLU

#  define MC_BA_MASK_VALID                0x000003FFLU

#  define MC_CSC_VALID                    0x00FF0FFFLU

#  define MC_TMS_SDRAM_VALID              0x0FFF83FFLU

#  define MC_TMS_SSRAM_VALID              0x00000000LU

#  define MC_TMS_ASYNC_VALID              0x03FFFFFFLU

#  define MC_TMS_SYNC_VALID               0x01FFFFFFLU

#  define MC_TMS_VALID                    0xFFFFFFFFLU /* reg test compat. */

/* TMS register field definition SDRAM */

#  define MC_TMS_SDRAM_TRFC_OFFSET        24

#  define MC_TMS_SDRAM_TRFC_WIDTH         4

#  define MC_TMS_SDRAM_TRP_OFFSET         20

#  define MC_TMS_SDRAM_TRP_WIDTH          4

#  define MC_TMS_SDRAM_TRCD_OFFSET        17

#  define MC_TMS_SDRAM_TRCD_WIDTH         4

#  define MC_TMS_SDRAM_TWR_OFFSET         15

#  define MC_TMS_SDRAM_TWR_WIDTH          2

#  define MC_TMS_SDRAM_WBL_OFFSET         9

#  define MC_TMS_SDRAM_OM_OFFSET          7

#  define MC_TMS_SDRAM_OM_WIDTH           2

#  define MC_TMS_SDRAM_CL_OFFSET          4

#  define MC_TMS_SDRAM_CL_WIDTH           3

#  define MC_TMS_SDRAM_BT_OFFSET          3

#  define MC_TMS_SDRAM_BL_OFFSET          0

#  define MC_TMS_SDRAM_BL_WIDTH           3

/* TMS register field definition ASYNC */

#  define MC_TMS_ASYNC_TWWD_OFFSET        20

#  define MC_TMS_ASYNC_TWWD_WIDTH         6

#  define MC_TMS_ASYNC_TWD_OFFSET         16

#  define MC_TMS_ASYNC_TWD_WIDTH          4

#  define MC_TMS_ASYNC_TWPW_OFFSET        12

#  define MC_TMS_ASYNC_TWPW_WIDTH         4

#  define MC_TMS_ASYNC_TRDZ_OFFSET        8

#  define MC_TMS_ASYNC_TRDZ_WIDTH         4

#  define MC_TMS_ASYNC_TRDV_OFFSET        0

#  define MC_TMS_ASYNC_TRDV_WIDTH         8

/* TMS register field definition SYNC  */

#  define MC_TMS_SYNC_TTO_OFFSET          16

#  define MC_TMS_SYNC_TTO_WIDTH           9

#  define MC_TMS_SYNC_TWR_OFFSET          12

#  define MC_TMS_SYNC_TWR_WIDTH           4

#  define MC_TMS_SYNC_TRDZ_OFFSET         8

#  define MC_TMS_SYNC_TRDZ_WIDTH          4

#  define MC_TMS_SYNC_TRDV_OFFSET         0

#  define MC_TMS_SYNC_TRDV_WIDTH          8

#else

#  error "no memory controler specified"

#endif

#endif