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[/] [openrisc/] [trunk/] [bootloaders/] [orpmon/] [include/] [mc-init-2.h] - Rev 812
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#ifndef _MC_INIT_2_H_ #define _MC_INIT_2_H_ /* clock period in [ns] */ #define SYS_CLK_PERIOD (1000000000/IN_CLK) /* FLASH timings: worst cases in ns, from data sheets */ # define FLASH_WA_TIME 150 /* write access*/ # define FLASH_WE_DELAY 30 /* write enable*/ # define FLASH_WH_TIME 0 /* write hold */ # define FLASH_RA_TIME 150 /* read access*/ # define FLASH_PRA_TIME 25 /* page read access time */ # define FLASH_RT_TIME 35 /* read turnaround time */ /* SDRAM timings: worst cases in ns, from data sheets */ # 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) # define FLASH_BAR_VAL FLASH_BASE_ADDR # define FLASH_AMR_VAL (~(FLASH_SIZE-1)) /* 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_OE_VAL ((FLASH_OE_DELAY+(SYS_CLK_PERIOD-1))/SYS_CLK_PERIOD) // define FLASH_WTR_VAL 0x00011009 /* write timings */ # define FLASH_WTR_VAL ((0x000003ff & ((FLASH_WA_TIME-1) /SYS_CLK_PERIOD)) | \ (0x0000f000 & ((FLASH_WE_DELAY-1)/SYS_CLK_PERIOD)) | \ (0x001f0000 & ((FLASH_WH_TIME) /SYS_CLK_PERIOD))) // define FLASH_RTR_VAL 0x01002009 /* read timings */ # define FLASH_RTR_VAL ((0x000003ff & ((FLASH_RA_TIME-1) /SYS_CLK_PERIOD)) | \ (0x0000f000 & (FLASH_OE_VAL )) | \ (0x001f0000 & ((FLASH_PRA_TIME-1)/SYS_CLK_PERIOD)) | \ (0x1f000000 & ((FLASH_RT_TIME-1 /SYS_CLK_PERIOD)))) /* 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)-2) # 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)-2) # 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)-2) # 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)-2) # 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)-2) # 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)-2) # 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) # 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 #endif /* _MC_INIT_2_H_ */
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