255 lines
7.3 KiB
C
255 lines
7.3 KiB
C
/*
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* File: include/asm-blackfin/mach-bf548/mem_init.h
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* Based on:
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* Author:
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*
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* Created:
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* Description:
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*
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* Rev:
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*
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* Modified:
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* Copyright 2004-2006 Analog Devices Inc.
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*
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* Bugs: Enter bugs at http://blackfin.uclinux.org/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING.
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* If not, write to the Free Software Foundation,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#define MIN_DDR_SCLK(x) (x*(CONFIG_SCLK_HZ/1000/1000)/1000 + 1)
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#define MAX_DDR_SCLK(x) (x*(CONFIG_SCLK_HZ/1000/1000)/1000)
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#define DDR_CLK_HZ(x) (1000*1000*1000/x)
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#if (CONFIG_MEM_MT46V32M16_6T)
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#define DDR_SIZE DEVSZ_512
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#define DDR_WIDTH DEVWD_16
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#define DDR_MAX_tCK 13
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#define DDR_tRC DDR_TRC(MIN_DDR_SCLK(60))
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#define DDR_tRAS DDR_TRAS(MIN_DDR_SCLK(42))
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#define DDR_tRP DDR_TRP(MIN_DDR_SCLK(15))
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#define DDR_tRFC DDR_TRFC(MIN_DDR_SCLK(72))
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#define DDR_tREFI DDR_TREFI(MAX_DDR_SCLK(7800))
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#define DDR_tRCD DDR_TRCD(MIN_DDR_SCLK(15))
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#define DDR_tWTR DDR_TWTR(1)
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#define DDR_tMRD DDR_TMRD(MIN_DDR_SCLK(12))
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#define DDR_tWR DDR_TWR(MIN_DDR_SCLK(15))
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#endif
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#if (CONFIG_MEM_MT46V32M16_5B)
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#define DDR_SIZE DEVSZ_512
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#define DDR_WIDTH DEVWD_16
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#define DDR_MAX_tCK 13
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#define DDR_tRC DDR_TRC(MIN_DDR_SCLK(55))
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#define DDR_tRAS DDR_TRAS(MIN_DDR_SCLK(40))
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#define DDR_tRP DDR_TRP(MIN_DDR_SCLK(15))
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#define DDR_tRFC DDR_TRFC(MIN_DDR_SCLK(70))
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#define DDR_tREFI DDR_TREFI(MAX_DDR_SCLK(7800))
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#define DDR_tRCD DDR_TRCD(MIN_DDR_SCLK(15))
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#define DDR_tWTR DDR_TWTR(2)
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#define DDR_tMRD DDR_TMRD(MIN_DDR_SCLK(10))
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#define DDR_tWR DDR_TWR(MIN_DDR_SCLK(15))
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#endif
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#if (CONFIG_MEM_GENERIC_BOARD)
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#define DDR_SIZE DEVSZ_512
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#define DDR_WIDTH DEVWD_16
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#define DDR_MAX_tCK 13
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#define DDR_tRCD DDR_TRCD(3)
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#define DDR_tWTR DDR_TWTR(2)
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#define DDR_tWR DDR_TWR(2)
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#define DDR_tMRD DDR_TMRD(2)
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#define DDR_tRP DDR_TRP(3)
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#define DDR_tRAS DDR_TRAS(7)
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#define DDR_tRC DDR_TRC(10)
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#define DDR_tRFC DDR_TRFC(12)
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#define DDR_tREFI DDR_TREFI(1288)
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#endif
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#if (CONFIG_SCLK_HZ < DDR_CLK_HZ(DDR_MAX_tCK))
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# error "CONFIG_SCLK_HZ is too small (<DDR_CLK_HZ(DDR_MAX_tCK) Hz)."
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#elif(CONFIG_SCLK_HZ <= 133333333)
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# define DDR_CL CL_2
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#else
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# error "CONFIG_SCLK_HZ is too large (>133333333 Hz)."
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#endif
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#define mem_DDRCTL0 (DDR_tRP | DDR_tRAS | DDR_tRC | DDR_tRFC | DDR_tREFI)
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#define mem_DDRCTL1 (DDR_DATWIDTH | EXTBANK_1 | DDR_SIZE | DDR_WIDTH | DDR_tWTR \
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| DDR_tMRD | DDR_tWR | DDR_tRCD)
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#define mem_DDRCTL2 DDR_CL
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#if defined CONFIG_CLKIN_HALF
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#define CLKIN_HALF 1
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#else
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#define CLKIN_HALF 0
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#endif
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#if defined CONFIG_PLL_BYPASS
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#define PLL_BYPASS 1
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#else
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#define PLL_BYPASS 0
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#endif
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/***************************************Currently Not Being Used *********************************/
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#define flash_EBIU_AMBCTL_WAT ((CONFIG_FLASH_SPEED_BWAT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1
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#define flash_EBIU_AMBCTL_RAT ((CONFIG_FLASH_SPEED_BRAT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1
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#define flash_EBIU_AMBCTL_HT ((CONFIG_FLASH_SPEED_BHT * 4) / (4000000000 / CONFIG_SCLK_HZ))
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#define flash_EBIU_AMBCTL_ST ((CONFIG_FLASH_SPEED_BST * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1
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#define flash_EBIU_AMBCTL_TT ((CONFIG_FLASH_SPEED_BTT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1
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#if (flash_EBIU_AMBCTL_TT > 3)
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#define flash_EBIU_AMBCTL0_TT B0TT_4
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#endif
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#if (flash_EBIU_AMBCTL_TT == 3)
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#define flash_EBIU_AMBCTL0_TT B0TT_3
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#endif
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#if (flash_EBIU_AMBCTL_TT == 2)
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#define flash_EBIU_AMBCTL0_TT B0TT_2
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#endif
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#if (flash_EBIU_AMBCTL_TT < 2)
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#define flash_EBIU_AMBCTL0_TT B0TT_1
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#endif
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#if (flash_EBIU_AMBCTL_ST > 3)
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#define flash_EBIU_AMBCTL0_ST B0ST_4
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#endif
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#if (flash_EBIU_AMBCTL_ST == 3)
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#define flash_EBIU_AMBCTL0_ST B0ST_3
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#endif
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#if (flash_EBIU_AMBCTL_ST == 2)
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#define flash_EBIU_AMBCTL0_ST B0ST_2
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#endif
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#if (flash_EBIU_AMBCTL_ST < 2)
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#define flash_EBIU_AMBCTL0_ST B0ST_1
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#endif
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#if (flash_EBIU_AMBCTL_HT > 2)
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#define flash_EBIU_AMBCTL0_HT B0HT_3
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#endif
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#if (flash_EBIU_AMBCTL_HT == 2)
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#define flash_EBIU_AMBCTL0_HT B0HT_2
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#endif
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#if (flash_EBIU_AMBCTL_HT == 1)
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#define flash_EBIU_AMBCTL0_HT B0HT_1
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#endif
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#if (flash_EBIU_AMBCTL_HT == 0 && CONFIG_FLASH_SPEED_BHT == 0)
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#define flash_EBIU_AMBCTL0_HT B0HT_0
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#endif
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#if (flash_EBIU_AMBCTL_HT == 0 && CONFIG_FLASH_SPEED_BHT != 0)
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#define flash_EBIU_AMBCTL0_HT B0HT_1
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#endif
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#if (flash_EBIU_AMBCTL_WAT > 14)
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#define flash_EBIU_AMBCTL0_WAT B0WAT_15
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#endif
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#if (flash_EBIU_AMBCTL_WAT == 14)
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#define flash_EBIU_AMBCTL0_WAT B0WAT_14
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#endif
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#if (flash_EBIU_AMBCTL_WAT == 13)
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#define flash_EBIU_AMBCTL0_WAT B0WAT_13
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#endif
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#if (flash_EBIU_AMBCTL_WAT == 12)
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#define flash_EBIU_AMBCTL0_WAT B0WAT_12
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#endif
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#if (flash_EBIU_AMBCTL_WAT == 11)
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#define flash_EBIU_AMBCTL0_WAT B0WAT_11
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#endif
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#if (flash_EBIU_AMBCTL_WAT == 10)
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#define flash_EBIU_AMBCTL0_WAT B0WAT_10
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#endif
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#if (flash_EBIU_AMBCTL_WAT == 9)
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#define flash_EBIU_AMBCTL0_WAT B0WAT_9
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#endif
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#if (flash_EBIU_AMBCTL_WAT == 8)
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#define flash_EBIU_AMBCTL0_WAT B0WAT_8
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#endif
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#if (flash_EBIU_AMBCTL_WAT == 7)
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#define flash_EBIU_AMBCTL0_WAT B0WAT_7
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#endif
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#if (flash_EBIU_AMBCTL_WAT == 6)
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#define flash_EBIU_AMBCTL0_WAT B0WAT_6
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#endif
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#if (flash_EBIU_AMBCTL_WAT == 5)
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#define flash_EBIU_AMBCTL0_WAT B0WAT_5
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#endif
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#if (flash_EBIU_AMBCTL_WAT == 4)
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#define flash_EBIU_AMBCTL0_WAT B0WAT_4
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#endif
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#if (flash_EBIU_AMBCTL_WAT == 3)
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#define flash_EBIU_AMBCTL0_WAT B0WAT_3
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#endif
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#if (flash_EBIU_AMBCTL_WAT == 2)
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#define flash_EBIU_AMBCTL0_WAT B0WAT_2
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#endif
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#if (flash_EBIU_AMBCTL_WAT == 1)
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#define flash_EBIU_AMBCTL0_WAT B0WAT_1
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#endif
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#if (flash_EBIU_AMBCTL_RAT > 14)
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#define flash_EBIU_AMBCTL0_RAT B0RAT_15
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#endif
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#if (flash_EBIU_AMBCTL_RAT == 14)
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#define flash_EBIU_AMBCTL0_RAT B0RAT_14
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#endif
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#if (flash_EBIU_AMBCTL_RAT == 13)
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#define flash_EBIU_AMBCTL0_RAT B0RAT_13
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#endif
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#if (flash_EBIU_AMBCTL_RAT == 12)
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#define flash_EBIU_AMBCTL0_RAT B0RAT_12
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#endif
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#if (flash_EBIU_AMBCTL_RAT == 11)
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#define flash_EBIU_AMBCTL0_RAT B0RAT_11
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#endif
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#if (flash_EBIU_AMBCTL_RAT == 10)
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#define flash_EBIU_AMBCTL0_RAT B0RAT_10
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#endif
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#if (flash_EBIU_AMBCTL_RAT == 9)
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#define flash_EBIU_AMBCTL0_RAT B0RAT_9
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#endif
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#if (flash_EBIU_AMBCTL_RAT == 8)
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#define flash_EBIU_AMBCTL0_RAT B0RAT_8
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#endif
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#if (flash_EBIU_AMBCTL_RAT == 7)
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#define flash_EBIU_AMBCTL0_RAT B0RAT_7
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#endif
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#if (flash_EBIU_AMBCTL_RAT == 6)
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#define flash_EBIU_AMBCTL0_RAT B0RAT_6
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#endif
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#if (flash_EBIU_AMBCTL_RAT == 5)
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#define flash_EBIU_AMBCTL0_RAT B0RAT_5
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#endif
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#if (flash_EBIU_AMBCTL_RAT == 4)
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#define flash_EBIU_AMBCTL0_RAT B0RAT_4
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#endif
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#if (flash_EBIU_AMBCTL_RAT == 3)
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#define flash_EBIU_AMBCTL0_RAT B0RAT_3
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#endif
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#if (flash_EBIU_AMBCTL_RAT == 2)
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#define flash_EBIU_AMBCTL0_RAT B0RAT_2
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#endif
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#if (flash_EBIU_AMBCTL_RAT == 1)
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#define flash_EBIU_AMBCTL0_RAT B0RAT_1
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#endif
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#define flash_EBIU_AMBCTL0 \
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(flash_EBIU_AMBCTL0_WAT | flash_EBIU_AMBCTL0_RAT | flash_EBIU_AMBCTL0_HT | \
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flash_EBIU_AMBCTL0_ST | flash_EBIU_AMBCTL0_TT | CONFIG_FLASH_SPEED_RDYEN)
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