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author | Kevin | 2014-11-15 11:48:36 +0800 |
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committer | Kevin | 2014-11-15 11:48:36 +0800 |
commit | d04075478d378d9e15f3e1abfd14b0bd124077d4 (patch) | |
tree | 733dd964582f388b9e3e367c249946cd32a2851f /board/eltec/bab7xx | |
download | FOSSEE-netbook-uboot-source-d04075478d378d9e15f3e1abfd14b0bd124077d4.tar.gz FOSSEE-netbook-uboot-source-d04075478d378d9e15f3e1abfd14b0bd124077d4.tar.bz2 FOSSEE-netbook-uboot-source-d04075478d378d9e15f3e1abfd14b0bd124077d4.zip |
init commit via android 4.4 uboot
Diffstat (limited to 'board/eltec/bab7xx')
-rwxr-xr-x | board/eltec/bab7xx/Makefile | 48 | ||||
-rwxr-xr-x | board/eltec/bab7xx/asm_init.S | 1476 | ||||
-rwxr-xr-x | board/eltec/bab7xx/bab7xx.c | 246 | ||||
-rwxr-xr-x | board/eltec/bab7xx/config.mk | 26 | ||||
-rwxr-xr-x | board/eltec/bab7xx/dc_srom.c | 291 | ||||
-rwxr-xr-x | board/eltec/bab7xx/el_srom.c | 292 | ||||
-rwxr-xr-x | board/eltec/bab7xx/flash.c | 512 | ||||
-rwxr-xr-x | board/eltec/bab7xx/l2cache.c | 159 | ||||
-rwxr-xr-x | board/eltec/bab7xx/misc.c | 547 | ||||
-rwxr-xr-x | board/eltec/bab7xx/pci.c | 120 | ||||
-rwxr-xr-x | board/eltec/bab7xx/srom.h | 102 | ||||
-rwxr-xr-x | board/eltec/bab7xx/u-boot.lds | 138 |
12 files changed, 3957 insertions, 0 deletions
diff --git a/board/eltec/bab7xx/Makefile b/board/eltec/bab7xx/Makefile new file mode 100755 index 0000000..7d8ed26 --- /dev/null +++ b/board/eltec/bab7xx/Makefile @@ -0,0 +1,48 @@ +# +# (C) Copyright 2000 +# Wolfgang Denk, DENX Software Engineering, wd@denx.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 +# + +include $(TOPDIR)/config.mk + +LIB = lib$(BOARD).a + +OBJS = $(BOARD).o flash.o pci.o misc.o el_srom.o dc_srom.o l2cache.o + +SOBJS = asm_init.o + +$(LIB): .depend $(OBJS) $(SOBJS) + $(AR) crv $@ $(OBJS) $(SOBJS) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c) + $(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@ + +sinclude .depend + +######################################################################### diff --git a/board/eltec/bab7xx/asm_init.S b/board/eltec/bab7xx/asm_init.S new file mode 100755 index 0000000..2a9b33e --- /dev/null +++ b/board/eltec/bab7xx/asm_init.S @@ -0,0 +1,1476 @@ +/* + * (C) Copyright 2001 ELTEC Elektronik AG + * Frank Gottschling <fgottschling@eltec.de> + * + * ELTEC BAB PPC RAM initialization + * + * 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 + */ + +#include <config.h> +#include <asm/processor.h> +#include <74xx_7xx.h> +#include <mpc106.h> +#include <version.h> + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +/* + * This following contains the entry code for the initialization code + * for the MPC 106, a PCI Bridge/Memory Controller. + * Register usage: + * r0 = ramtest scratch register, toggleError loop counter + * r1 = 0xfec0 0cf8 CONFIG_ADDRESS + * r2 = 0xfee0 0cfc CONFIG_DATA + * r3 = scratch register, subroutine argument and return value, ramtest size + * r4 = scratch register, spdRead clock mask, OutHex loop count + * r5 = ramtest scratch register + * r6 = toggleError 1st value, spdRead port mask + * r7 = toggleError 2nd value, ramtest scratch register, + * spdRead scratch register (0x00) + * r8 = ramtest scratch register, spdRead scratch register (0x80) + * r9 = ramtest scratch register, toggleError loop end, OutHex digit + * r10 = ramtest scratch register, spdWriteByte parameter, + * spdReadByte return value, printf pointer to COM1 + * r11 = startType + * r12 = ramtest scratch register, spdRead data mask + * r13 = pointer to message block + * r14 = pointer to GOT + * r15 = scratch register, SPD save + * r16 = bank0 size, total memory size + * r17 = bank1 size + * r18 = bank2 size + * r19 = bank3 size + * r20 = MCCR1, MSAR1 + * r21 = MCCR3, MEAR1 + * r22 = MCCR4, MBER + * r23 = EMSAR1 + * r24 = EMEAR1 + * r25 = save link register 1st level + * r26 = save link register 2nd level + * r27 = save link register 3rd level + * r30 = pointer to GPIO for spdRead + */ + + +.globl board_asm_init +board_asm_init: +/* + * setup pointer to message block + */ + mflr r25 /* save away link register */ + bl get_lnk_reg /* r3=addr of next instruction */ + subi r4, r3, 8 /* r4=board_asm_init addr */ + addi r13, r4, (MessageBlock-board_asm_init) +/* + * dcache_disable + */ + mfspr r3, HID0 + li r4, HID0_DCE + andc r3, r3, r4 + mr r2, r3 + ori r3, r3, HID0_DCI + sync + mtspr HID0, r3 + mtspr HID0, r2 + isync + sync +/* + * icache_disable + */ + mfspr r3, HID0 + li r4, 0 + ori r4, r4, HID0_ICE + andc r3, r3, r4 + sync + mtspr HID0, r3 +/* + * invalidate caches + */ + ori r3, r3, (HID0_ICE | HID0_ICFI | HID0_DCI | HID0_DCE) + or r4, r4, r3 + isync + mtspr HID0, r4 + andc r4, r4, r3 + isync + mtspr HID0, r4 + isync +/* + * icache_enable + */ + mfspr r3, HID0 + ori r3, r3, (HID0_ICE | HID0_ICFI) + sync + mtspr HID0, r3 + + lis r1, 0xfec0 + ori r1, r1, 0x0cf8 + lis r2, 0xfee0 + ori r2, r2, 0xcfc + +#ifdef CFG_ADDRESS_MAP_A +/* + * Switch to address map A if necessary. + */ + lis r3, MPC106_REG@h + ori r3, r3, PCI_PICR1 + stwbrx r3, 0, r1 + sync + lwbrx r4, 0, r2 + sync + lis r0, PICR1_XIO_MODE@h + ori r0, r0, PICR1_XIO_MODE@l + andc r4, r4, r0 + lis r0, PICR1_ADDRESS_MAP@h + ori r0, r0, PICR1_ADDRESS_MAP@l + or r4, r4, r0 + stwbrx r4, 0, r2 + sync +#endif + +/* + * Do the init for the SIO. + */ + bl .sioInit + + addi r3, r13, (MinitLogo-MessageBlock) + bl Printf + + addi r3, r13, (Mspd01-MessageBlock) + bl Printf +/* + * Memory cofiguration using SPD information stored on the SODIMMs + */ + li r17, 0 + li r18, 0 + li r19, 0 + + li r3, 0x0002 /* get RAM type from spd for bank0/1 */ + bl spdRead + + cmpi 0, 0, r3, -1 /* error ? */ + bne noSpdError + + addi r3, r13, (Mfail-MessageBlock) + bl Printf + + li r6, 0xe0 /* error codes in r6 and r7 */ + li r7, 0x00 + b toggleError /* fail - loop forever */ + +noSpdError: + mr r15, r3 /* save r3 */ + + addi r3, r13, (Mok-MessageBlock) + bl Printf + + cmpli 0, 0, r15, 0x0001 /* FPM ? */ + beq configFPM + cmpli 0, 0, r15, 0x0002 /* EDO ? */ + beq configEDO + cmpli 0, 0, r15, 0x0004 /* SDRAM ? */ + beq configSDRAM + + li r6, 0xe0 /* error codes in r6 and r7 */ + li r7, 0x01 + b toggleError /* fail - loop forever */ + +configSDRAM: + addi r3, r13, (MsdRam-MessageBlock) + bl Printf +/* + * set the Memory Configuration Reg. 1 + */ + li r3, 0x001f /* get bank size from spd bank0/1 */ + bl spdRead + + andi. r3, r3, 0x0038 + beq SD16MB2B + + li r3, 0x0011 /* get number of internal banks */ + /* from spd for bank0/1 */ + bl spdRead + + cmpli 0, 0, r3, 0x02 + beq SD64MB2B + + cmpli 0, 0, r3, 0x04 + beq SD64MB4B + + li r6, 0xe0 /* error codes in r6 and r7 */ + li r7, 0x02 + b toggleError /* fail - loop forever */ + +SD64MB2B: + li r20, 0x0005 /* 64-Mbit SDRAM 2 banks */ + b SDRow2nd + +SD64MB4B: + li r20, 0x0000 /* 64-Mbit SDRAM 4 banks */ + b SDRow2nd + +SD16MB2B: + li r20, 0x000f /* 16-Mbit SDRAM 2 banks */ + +SDRow2nd: + li r3, 0x0102 /* get RAM type spd for bank2/3 */ + bl spdRead + + cmpli 0, 0, r3, 0x0004 + bne S2D64MB4B /* bank2/3 isn't present or no SDRAM */ + + li r3, 0x011f /* get bank size from spd bank2/3 */ + bl spdRead + + andi. r3, r3, 0x0038 + beq S2D16MB2B +/* + * set the Memory Configuration Reg. 2 + */ + li r3, 0x0111 /* get number of internal banks */ + /* from spd for bank2/3 */ + bl spdRead + + cmpli 0, 0, r3, 0x02 + beq S2D64MB2B + + cmpli 0, 0, r3, 0x04 + beq S2D64MB4B + + li r6, 0xe0 /* error codes in r6 and r7 */ + li r7, 0x03 + b toggleError /* fail - loop forever */ + +S2D64MB2B: + ori r20, r20, 0x0050 /* 64-Mbit SDRAM 2 banks */ + b S2D64MB4B + +S2D16MB2B: + ori r20, r20, 0x00f0 /* 16-Mbit SDRAM 2 banks */ + +/* + * set the Memory Configuration Reg. 3 + */ +S2D64MB4B: + lis r21, 0x8630 /* BSTOPRE = 0x80, REFREC = 6, */ + /* RDLAT = 3 */ + +/* + * set the Memory Configuration Reg. 4 + */ + lis r22, 0x2430 /* PRETOACT = 2, ACTOPRE = 4, */ + /* WCBUF = 1, RCBUF = 1 */ + ori r22, r22, 0x2220 /* SDMODE = 0x022, ACTORW = 2 */ + +/* + * get the size of bank 0-3 + */ + li r3, 0x001f /* get bank size from spd bank0/1 */ + bl spdRead + + rlwinm r16, r3, 2, 24, 29 /* calculate size in MByte */ + /* (128 MB max.) */ + + li r3, 0x0005 /* get number of banks from spd */ + /* for bank0/1 */ + bl spdRead + + cmpi 0, 0, r3, 2 /* 2 banks ? */ + bne SDRAMnobank1 + + mr r17, r16 + +SDRAMnobank1: + addi r3, r13, (Mspd23-MessageBlock) + bl Printf + + li r3, 0x0102 /* get RAM type spd for bank2/3 */ + bl spdRead + + cmpli 0, 0, r3, 0x0001 /* FPM ? */ + bne noFPM23 /* handle as EDO */ + addi r3, r13, (Mok-MessageBlock) + bl Printf + addi r3, r13, (MfpmRam-MessageBlock) + bl Printf + b configRAMcommon +noFPM23: + cmpli 0, 0, r3, 0x0002 /* EDO ? */ + bne noEDO23 + addi r3, r13, (Mok-MessageBlock) + bl Printf + addi r3, r13, (MedoRam-MessageBlock) + bl Printf + b configRAMcommon +noEDO23: + cmpli 0, 0, r3, 0x0004 /* SDRAM ? */ + bne noSDRAM23 + addi r3, r13, (Mok-MessageBlock) + bl Printf + addi r3, r13, (MsdRam-MessageBlock) + bl Printf + b configSDRAM23 +noSDRAM23: + addi r3, r13, (Mna-MessageBlock) + bl Printf + b configRAMcommon /* bank2/3 isn't present or no SDRAM */ + +configSDRAM23: + li r3, 0x011f /* get bank size from spd bank2/3 */ + bl spdRead + + rlwinm r18, r3, 2, 24, 29 /* calculate size in MByte */ + /* (128 MB max.) */ + + li r3, 0x0105 /* get number of banks from */ + /* spd bank0/1 */ + bl spdRead + + cmpi 0, 0, r3, 2 /* 2 banks ? */ + bne SDRAMnobank3 + + mr r19, r18 + +SDRAMnobank3: + b configRAMcommon + +configFPM: + addi r3, r13, (MfpmRam-MessageBlock) + bl Printf + b configEDO0 +/* + * set the Memory Configuration Reg. 1 + */ +configEDO: + addi r3, r13, (MedoRam-MessageBlock) + bl Printf +configEDO0: + lis r20, MCCR1_TYPE_EDO@h + +getSpdRowBank01: + li r3, 0x0003 /* get number of row bits from */ + /* spd from bank0/1 */ + bl spdRead + ori r20, r20, (MCCR1_BK0_9BITS | MCCR1_BK1_9BITS) + cmpli 0, 0, r3, 0x0009 /* bank0 - 9 row bits */ + beq getSpdRowBank23 + + ori r20, r20, (MCCR1_BK0_10BITS | MCCR1_BK1_10BITS) + cmpli 0, 0, r3, 0x000a /* bank0 - 10 row bits */ + beq getSpdRowBank23 + + ori r20, r20, (MCCR1_BK0_11BITS | MCCR1_BK1_11BITS) + cmpli 0, 0, r3, 0x000b /* bank0 - 11 row bits */ + beq getSpdRowBank23 + + ori r20, r20, (MCCR1_BK0_12BITS | MCCR1_BK1_12BITS) + cmpli 0, 0, r3, 0x000c /* bank0 - 12 row bits */ + beq getSpdRowBank23 + + cmpli 0, 0, r3, 0x000d /* bank0 - 13 row bits */ + beq getSpdRowBank23 + + li r6, 0xe0 /* error codes in r6 and r7 */ + li r7, 0x10 + b toggleError /* fail - loop forever */ + +getSpdRowBank23: + li r3, 0x0103 /* get number of row bits from */ + /* spd for bank2/3 */ + bl spdRead + + ori r20, r20, (MCCR1_BK2_9BITS | MCCR1_BK3_9BITS) + cmpli 0, 0, r3, 0x0009 /* bank0 - 9 row bits */ + beq writeRowBits + + ori r20, r20, (MCCR1_BK2_10BITS | MCCR1_BK3_10BITS) + cmpli 0, 0, r3, 0x000a /* bank0 - 10 row bits */ + beq writeRowBits + + ori r20, r20, (MCCR1_BK2_11BITS | MCCR1_BK3_11BITS) + cmpli 0, 0, r3, 0x000b /* bank0 - 11 row bits */ + beq writeRowBits + + ori r20, r20, (MCCR1_BK2_12BITS | MCCR1_BK3_12BITS) + +/* + * set the Memory Configuration Reg. 3 + */ +writeRowBits: + lis r21, 0x000a /* CPX = 1, RAS6P = 4 */ + ori r21, r21, 0x2293 /* CAS5 = 2, CP4 = 1, */ + /* CAS3 = 2, RCD2 = 2, RP = 3 */ +/* + * set the Memory Configuration Reg. 4 + */ + lis r22, 0x0010 /* all SDRAM parameter 0, */ + /* WCBUF flow through, */ + /* RCBUF registered */ +/* + * get the size of bank 0-3 + */ + li r3, 0x0003 /* get row bits from spd bank0/1 */ + bl spdRead + + li r16, 0 /* bank size is: */ + /* (8*2^row*2^column)/0x100000 MB */ + ori r16, r16, 0x8000 + rlwnm r16, r16, r3, 0, 31 + + li r3, 0x0004 /* get column bits from spd bank0/1 */ + bl spdRead + + rlwnm r16, r16, r3, 0, 31 + + li r3, 0x0005 /* get number of banks from */ + /* spd for bank0/1 */ + bl spdRead + + cmpi 0, 0, r3, 2 /* 2 banks ? */ + bne EDOnobank1 + + mr r17, r16 + +EDOnobank1: + addi r3, r13, (Mspd23-MessageBlock) + bl Printf + + li r3, 0x0102 /* get RAM type spd for bank2/3 */ + bl spdRead + + cmpli 0, 0, r3, 0x0001 /* FPM ? */ + bne noFPM231 /* handle as EDO */ + addi r3, r13, (Mok-MessageBlock) + bl Printf + addi r3, r13, (MfpmRam-MessageBlock) + bl Printf + b EDObank2 +noFPM231: + cmpli 0, 0, r3, 0x0002 /* EDO ? */ + bne noEDO231 + addi r3, r13, (Mok-MessageBlock) + bl Printf + addi r3, r13, (MedoRam-MessageBlock) + bl Printf + b EDObank2 +noEDO231: + cmpli 0, 0, r3, 0x0004 /* SDRAM ? */ + bne noSDRAM231 + addi r3, r13, (Mok-MessageBlock) + bl Printf + addi r3, r13, (MsdRam-MessageBlock) + bl Printf + b configRAMcommon +noSDRAM231: + addi r3, r13, (Mfail-MessageBlock) + bl Printf + b configRAMcommon /* bank2/3 isn't present or no SDRAM */ + +EDObank2: + li r3, 0x0103 /* get row bits from spd for bank2/3 */ + bl spdRead + + li r18, 0 /* bank size is: */ + /* (8*2^row*2^column)/0x100000 MB */ + ori r18, r18, 0x8000 + rlwnm r18, r18, r3, 0, 31 + + li r3, 0x0104 /* get column bits from spd bank2/3 */ + bl spdRead + + rlwnm r18, r18, r3, 0, 31 + + li r3, 0x0105 /* get number of banks from */ + /* spd for bank2/3 */ + bl spdRead + + cmpi 0, 0, r3, 2 /* 2 banks ? */ + bne configRAMcommon + + mr r19, r18 + +configRAMcommon: + lis r1, MPC106_REG_ADDR@h + ori r1, r1, MPC106_REG_ADDR@l + lis r2, MPC106_REG_DATA@h + ori r2, r2, MPC106_REG_DATA@l + + li r0, 0 + +/* + * If we are already running in RAM (debug mode), we should + * NOT reset the MEMGO flag. Otherwise we will stop all memory + * accesses. + */ +#ifdef IN_RAM + lis r4, MCCR1_MEMGO@h + ori r4, r4, MCCR1_MEMGO@l + or r20, r20, r4 +#endif + +/* + * set the Memory Configuration Reg. 1 + */ + lis r3, MPC106_REG@h /* start building new reg number */ + ori r3, r3, MPC106_MCCR1 /* register number 0xf0 */ + stwbrx r3, r0, r1 /* write this value to CONFIG_ADDR */ + eieio /* make sure mem. access is complete */ + stwbrx r20, r0, r2 /* write data to CONFIG_DATA */ +/* + * set the Memory Configuration Reg. 3 + */ + lis r3, MPC106_REG@h /* start building new reg number */ + ori r3, r3, MPC106_MCCR3 /* register number 0xf8 */ + stwbrx r3, r0, r1 /* write this value to CONFIG_ADDR */ + eieio /* make sure mem. access is complete */ + stwbrx r21, r0, r2 /* write data to CONFIG_DATA */ +/* + * set the Memory Configuration Reg. 4 + */ + lis r3, MPC106_REG@h /* start building new reg number */ + ori r3, r3, MPC106_MCCR4 /* register number 0xfc */ + stwbrx r3, r0, r1 /* write this value to CONFIG_ADDR */ + eieio /* make sure mem. access is complete */ + stwbrx r22, r0, r2 /* write data to CONFIG_DATA */ +/* + * set the memory boundary registers for bank 0-3 + */ + li r20, 0 + li r23, 0 + li r24, 0 + subi r21, r16, 1 /* calculate end address bank0 */ + li r22, (MBER_BANK0) + + cmpi 0, 0, r17, 0 /* bank1 present ? */ + beq nobank1 + + rlwinm r3, r16, 8, 16, 23 /* calculate start address of bank1 */ + or r20, r20, r3 + add r16, r16, r17 /* add to total memory size */ + subi r3, r16, 1 /* calculate end address of bank1 */ + rlwinm r3, r3, 8, 16, 23 + or r21, r21, r3 + ori r22, r22, (MBER_BANK1) /* enable bank1 */ + b bank2 + +nobank1: + ori r23, r23, 0x0300 /* set bank1 start to unused area */ + ori r24, r24, 0x0300 /* set bank1 end to unused area */ + +bank2: + cmpi 0, 0, r18, 0 /* bank2 present ? */ + beq nobank2 + + andi. r3, r16, 0x00ff /* calculate start address of bank2 */ + andi. r4, r16, 0x0300 + rlwinm r3, r3, 16, 8, 15 + or r20, r20, r3 + rlwinm r3, r4, 8, 8, 15 + or r23, r23, r3 + add r16, r16, r18 /* add to total memory size */ + subi r3, r16, 1 /* calculate end address of bank2 */ + andi. r4, r3, 0x0300 + andi. r3, r3, 0x00ff + rlwinm r3, r3, 16, 8, 15 + or r21, r21, r3 + rlwinm r3, r4, 8, 8, 15 + or r24, r24, r3 + ori r22, r22, (MBER_BANK2) /* enable bank2 */ + b bank3 + +nobank2: + lis r3, 0x0003 + or r23, r23, r3 /* set bank2 start to unused area */ + or r24, r24, r3 /* set bank2 end to unused area */ + +bank3: + cmpi 0, 0, r19, 0 /* bank3 present ? */ + beq nobank3 + + andi. r3, r16, 0x00ff /* calculate start address of bank3 */ + andi. r4, r16, 0x0300 + rlwinm r3, r3, 24, 0, 7 + or r20, r20, r3 + rlwinm r3, r4, 16, 0, 7 + or r23, r23, r3 + add r16, r16, r19 /* add to total memory size */ + subi r3, r16, 1 /* calculate end address of bank3 */ + andi. r4, r3, 0x0300 + andi. r3, r3, 0x00ff + rlwinm r3, r3, 24, 0, 7 + or r21, r21, r3 + rlwinm r3, r4, 16, 0, 7 + or r24, r24, r3 + ori r22, r22, (MBER_BANK3) /* enable bank3 */ + b writebound + +nobank3: + lis r3, 0x0300 + or r23, r23, r3 /* set bank3 start to unused area */ + or r24, r24, r3 /* set bank3 end to unused area */ + +writebound: + lis r3, MPC106_REG@h /* start building new reg number */ + ori r3, r3, MPC106_MSAR1 /* register number 0x80 */ + stwbrx r3, r0, r1 /* write this value to CONFIG_ADDR */ + eieio /* make sure mem. access is complete */ + stwbrx r20, r0, r2 /* write data to CONFIG_DATA */ + + lis r3, MPC106_REG@h /* start building new reg number */ + ori r3, r3, MPC106_MEAR1 /* register number 0x90 */ + stwbrx r3, r0, r1 /* write this value to CONFIG_ADDR */ + eieio /* make sure mem. access is complete */ + stwbrx r21, r0, r2 /* write data to CONFIG_DATA */ + + lis r3, MPC106_REG@h /* start building new reg number */ + ori r3, r3, MPC106_EMSAR1 /* register number 0x88 */ + stwbrx r3, r0, r1 /* write this value to CONFIG_ADDR */ + eieio /* make sure mem. access is complete */ + stwbrx r23, r0, r2 /* write data to CONFIG_DATA */ + + lis r3, MPC106_REG@h /* start building new reg number */ + ori r3, r3, MPC106_EMEAR1 /* register number 0x98 */ + stwbrx r3, r0, r1 /* write this value to CONFIG_ADDR */ + eieio /* make sure mem. access is complete */ + stwbrx r24, r0, r2 /* write data to CONFIG_DATA */ + +/* + * set boundaries of unused banks to unused address space + */ + lis r4, 0x0303 + ori r4, r4, 0x0303 /* bank 4-7 start and end adresses */ + lis r3, MPC106_REG@h /* start building new reg number */ + ori r3, r3, MPC106_EMSAR2 /* register number 0x8C */ + stwbrx r3, r0, r1 /* write this value to CONFIG_ADDR */ + eieio /* make sure mem. access is complete */ + stwbrx r4, r0, r2 /* write data to CONFIG_DATA */ + + lis r3, MPC106_REG@h /* start building new reg number */ + ori r3, r3, MPC106_EMEAR2 /* register number 0x9C */ + stwbrx r3, r0, r1 /* write this value to CONFIG_ADDR */ + eieio /* make sure mem. access is complete */ + stwbrx r4, r0, r2 /* write data to CONFIG_DATA */ + +/* + * set the Memory Configuration Reg. 2 + */ + lis r3, MPC106_REG@h /* start building new reg number */ + ori r3, r3, MPC106_MCCR2 /* register number 0xf4 */ + stwbrx r3, r0, r1 /* write this value to CONFIG_ADDR */ + eieio /* make sure mem. access is complete */ + + li r3, 0x000c /* get refresh from spd for bank0/1 */ + bl spdRead + + cmpi 0, 0, r3, -1 /* error ? */ + bne common1 + + li r6, 0xe0 /* error codes in r6 and r7 */ + li r7, 0x20 + b toggleError /* fail - loop forever */ + +common1: + andi. r15, r3, 0x007f /* mask selfrefresh bit */ + li r3, 0x010c /* get refresh from spd for bank2/3 */ + bl spdRead + + cmpi 0, 0, r3, -1 /* error ? */ + beq common2 + andi. r3, r3, 0x007f /* mask selfrefresh bit */ + cmp 0, 0, r3, r15 /* find the lower */ + blt common3 + +common2: + mr r3, r15 + +common3: + li r4, 0x1010 /* refesh cycle 1028 clocks */ + /* left shifted 2 */ + cmpli 0, 0, r3, 0x0000 /* 15.6 us ? */ + beq writeRefresh + + li r4, 0x0808 /* refesh cycle 514 clocks */ + /* left shifted 2 */ + cmpli 0, 0, r3, 0x0002 /* 7.8 us ? */ + beq writeRefresh + + li r4, 0x2020 /* refesh cycle 2056 clocks */ + /* left shifted 2 */ + cmpli 0, 0, r3, 0x0003 /* 31.3 us ? */ + beq writeRefresh + + li r4, 0x4040 /* refesh cycle 4112 clocks */ + /* left shifted 2 */ + cmpli 0, 0, r3, 0x0004 /* 62.5 us ? */ + beq writeRefresh + + li r4, 0 + ori r4, r4, 0x8080 /* refesh cycle 8224 clocks */ + /* left shifted 2 */ + cmpli 0, 0, r3, 0x0005 /* 125 us ? */ + beq writeRefresh + + li r6, 0xe0 /* error codes in r6 and r7 */ + li r7, 0x21 + b toggleError /* fail - loop forever */ + +writeRefresh: + stwbrx r4, r0, r2 /* write data to CONFIG_DATA */ + +/* + * DRAM BANKS SHOULD BE ENABLED + */ + addi r3, r13, (Mactivate-MessageBlock) + bl Printf + mr r3, r16 + bl OutDec + addi r3, r13, (Mmbyte-MessageBlock) + bl Printf + + lis r3, MPC106_REG@h /* start building new reg number */ + ori r3, r3, MPC106_MBER /* register number 0xa0 */ + stwbrx r3, r0, r1 /* write this value to CONFIG_ADDR */ + eieio /* make sure mem. access is complete */ + stb r22, 0(r2) /* write data to CONFIG_DATA */ + li r8, 0x63 /* PGMAX = 99 */ + stb r8, 3(r2) /* write data to CONFIG_DATA */ + +/* + * DRAM SHOULD NOW BE CONFIGURED AND ENABLED + * MUST WAIT 200us BEFORE ACCESSING + */ + li r0, 0x7800 + mtctr r0 + +wait200us: + bdnz wait200us + + lis r3, MPC106_REG@h /* start building new reg number */ + ori r3, r3, MPC106_MCCR1 /* register number 0xf0 */ + stwbrx r3, r0, r1 /* write this value to CONFIG_ADDR */ + eieio /* make sure mem. access is complete */ + + lwbrx r4, r0, r2 /* load r4 from CONFIG_DATA */ + + lis r0, MCCR1_MEMGO@h /* MEMGO=1 */ + ori r0, r0, MCCR1_MEMGO@l + or r4, r4, r0 /* set the MEMGO bit */ + stwbrx r4, r0, r2 /* write mdfd data to CONFIG_DATA */ + + li r0, 0x7000 + mtctr r0 + +wait8ref: + bdnz wait8ref + + addi r3, r13, (Mok-MessageBlock) + bl Printf + + mtlr r25 + blr + +/* + * Infinite loop called in case of an error during RAM initialisation. + * error codes in r6 and r7. + */ +toggleError: + li r0, 0 + lis r9, 127 + ori r9, r9, 65535 +toggleError1: + addic r0, r0, 1 + cmpw cr1, r0, r9 + ble cr1, toggleError1 + li r0, 0 + lis r9, 127 + ori r9, r9, 65535 +toggleError2: + addic r0, r0, 1 + cmpw cr1, r0, r9 + ble cr1, toggleError2 + b toggleError + + +/****************************************************************************** + * This function performs a basic initialisation of the superio chip + * to enable basic console output and SPD access during RAM initialisation. + * + * Upon completion, SIO resource registers are mapped as follows: + * Resource Enabled Address + * UART1 Yes 3F8-3FF COM1 + * UART2 Yes 2F8-2FF COM2 + * GPIO Yes 220-227 + */ +.set SIO_LUNINDEX, 0x07 /* SIO LUN index register */ +.set SIO_CNFG1, 0x21 /* SIO configuration #1 register */ +.set SIO_PCSCI, 0x23 /* SIO PCS configuration index reg */ +.set SIO_PCSCD, 0x24 /* SIO PCS configuration data reg */ +.set SIO_ACTIVATE, 0x30 /* SIO activate register */ +.set SIO_IOBASEHI, 0x60 /* SIO I/O port base address, 15:8 */ +.set SIO_IOBASELO, 0x61 /* SIO I/O port base address, 7:0 */ +.set SIO_LUNENABLE, 0x01 /* SIO LUN enable */ + +.sioInit: + mfspr r7, 8 /* save link register */ + +.sioInit_87308: + +/* + * Get base addr of ISA I/O space + */ + lis r6, CFG_ISA_IO@h + ori r6, r6, CFG_ISA_IO@l + +/* + * Set offset to base address for config registers. + */ +#if defined(CFG_NS87308_BADDR_0x) + addi r4, r0, 0x0279 +#elif defined(CFG_NS87308_BADDR_10) + addi r4, r0, 0x015C +#elif defined(CFG_NS87308_BADDR_11) + addi r4, r0, 0x002E +#endif + add r6, r6, r4 /* add offset to base */ + or r3, r6, r6 /* make a copy */ + +/* + * PMC (LUN 8) + */ + addi r4, r0, SIO_LUNINDEX /* select PMC LUN */ + addi r5, r0, 0x8 + bl .sio_bw + addi r4, r0, SIO_IOBASEHI /* initialize PMC address to 0x460 */ + addi r5, r0, 0x04 + bl .sio_bw + addi r4, r0, SIO_IOBASELO + addi r5, r0, 0x60 + bl .sio_bw + addi r4, r0, SIO_ACTIVATE /* enable PMC */ + addi r5, r0, SIO_LUNENABLE + bl .sio_bw + + lis r8, CFG_ISA_IO@h + ori r8, r8, 0x0460 + li r9, 0x03 + stb r9, 0(r8) /* select PMC2 register */ + eieio + li r9, 0x00 + stb r9, 1(r8) /* SuperI/O clock src: 24MHz via X1 */ + eieio + +/* + * map UART1 (LUN 6) or UART2 (LUN 5) to COM1 (0x3F8) + */ + addi r4, r0, SIO_LUNINDEX /* select COM1 LUN */ + addi r5, r0, 0x6 + bl .sio_bw + + addi r4, r0, SIO_IOBASEHI /* initialize COM1 address to 0x3F8 */ + addi r5, r0, 0x03 + bl .sio_bw + + addi r4, r0, SIO_IOBASELO + addi r5, r0, 0xF8 + bl .sio_bw + + addi r4, r0, SIO_ACTIVATE /* enable COM1 */ + addi r5, r0, SIO_LUNENABLE + bl .sio_bw + +/* + * Init COM1 for polled output + */ + lis r8, CFG_ISA_IO@h + ori r8, r8, 0x03f8 + li r9, 0x00 + stb r9, 1(r8) /* int disabled */ + eieio + li r9, 0x00 + stb r9, 4(r8) /* modem ctrl */ + eieio + li r9, 0x80 + stb r9, 3(r8) /* link ctrl, bank select */ + eieio + li r9, 115200/CONFIG_BAUDRATE + stb r9, 0(r8) /* baud rate (LSB)*/ + eieio + rotrwi r9, r9, 8 + stb r9, 1(r8) /* baud rate (MSB) */ + eieio + li r9, 0x03 + stb r9, 3(r8) /* 8 data bits, 1 stop bit, */ + /* no parity */ + eieio + li r9, 0x0b + stb r9, 4(r8) /* enable the receiver and transmitter */ + eieio + +waitEmpty: + lbz r9, 5(r8) /* transmit empty */ + andi. r9, r9, 0x40 + beq waitEmpty + li r9, 0x47 + stb r9, 3(r8) /* send break, 8 data bits, */ + /* 2 stop bits, no parity */ + eieio + + lis r0, 0x0001 + mtctr r0 + +waitCOM1: + lwz r0, 5(r8) /* load from port for delay */ + bdnz waitCOM1 + +waitEmpty1: + lbz r9, 5(r8) /* transmit empty */ + andi. r9, r9, 0x40 + beq waitEmpty1 + li r9, 0x07 + stb r9, 3(r8) /* 8 data bits, 2 stop bits, */ + /* no parity */ + eieio + +/* + * GPIO (LUN 7) + */ + addi r4, r0, SIO_LUNINDEX /* select GPIO LUN */ + addi r5, r0, 0x7 + bl .sio_bw + + addi r4, r0, SIO_IOBASEHI /* initialize GPIO address to 0x220 */ + addi r5, r0, 0x02 + bl .sio_bw + + addi r4, r0, SIO_IOBASELO + addi r5, r0, 0x20 + bl .sio_bw + + addi r4, r0, SIO_ACTIVATE /* enable GPIO */ + addi r5, r0, SIO_LUNENABLE + bl .sio_bw + +.sioInit_done: + +/* + * Get base addr of ISA I/O space + */ + lis r3, CFG_ISA_IO@h + ori r3, r3, CFG_ISA_IO@l + + addi r3, r3, 0x015C /* adjust to superI/O 87308 base */ + or r6, r3, r3 /* make a copy */ +/* + * CS0 + */ + addi r4, r0, SIO_PCSCI /* select PCSCIR */ + addi r5, r0, 0x00 + bl .sio_bw + addi r4, r0, SIO_PCSCD /* select PCSCDR */ + addi r5, r0, 0x00 + bl .sio_bw + addi r4, r0, SIO_PCSCI /* select PCSCIR */ + addi r5, r0, 0x01 + bl .sio_bw + addi r4, r0, SIO_PCSCD /* select PCSCDR */ + addi r5, r0, 0x76 + bl .sio_bw + addi r4, r0, SIO_PCSCI /* select PCSCIR */ + addi r5, r0, 0x02 + bl .sio_bw + addi r4, r0, SIO_PCSCD /* select PCSCDR */ + addi r5, r0, 0x40 + bl .sio_bw +/* + * CS1 + */ + addi r4, r0, SIO_PCSCI /* select PCSCIR */ + addi r5, r0, 0x05 + bl .sio_bw + addi r4, r0, SIO_PCSCD /* select PCSCDR */ + addi r5, r0, 0x00 + bl .sio_bw + addi r4, r0, SIO_PCSCI /* select PCSCIR */ + addi r5, r0, 0x05 + bl .sio_bw + addi r4, r0, SIO_PCSCD /* select PCSCDR */ + addi r5, r0, 0x70 + bl .sio_bw + addi r4, r0, SIO_PCSCI /* select PCSCIR */ + addi r5, r0, 0x06 + bl .sio_bw + addi r4, r0, SIO_PCSCD /* select PCSCDR */ + addi r5, r0, 0x1C + bl .sio_bw +/* + * CS2 + */ + addi r4, r0, SIO_PCSCI /* select PCSCIR */ + addi r5, r0, 0x08 + bl .sio_bw + addi r4, r0, SIO_PCSCD /* select PCSCDR */ + addi r5, r0, 0x00 + bl .sio_bw + addi r4, r0, SIO_PCSCI /* select PCSCIR */ + addi r5, r0, 0x09 + bl .sio_bw + addi r4, r0, SIO_PCSCD /* select PCSCDR */ + addi r5, r0, 0x71 + bl .sio_bw + addi r4, r0, SIO_PCSCI /* select PCSCIR */ + addi r5, r0, 0x0A + bl .sio_bw + addi r4, r0, SIO_PCSCD /* select PCSCDR */ + addi r5, r0, 0x1C + bl .sio_bw + + mtspr 8, r7 /* restore link register */ + bclr 20, 0 /* return to caller */ + +/* + * this function writes a register to the SIO chip + */ +.sio_bw: + stb r4, 0(r3) /* write index register with register offset */ + eieio + sync + stb r5, 1(r3) /* 1st write */ + eieio + sync + stb r5, 1(r3) /* 2nd write */ + eieio + sync + bclr 20, 0 /* return to caller */ +/* + * this function reads a register from the SIO chip + */ +.sio_br: + stb r4, 0(r3) /* write index register with register offset */ + eieio + sync + lbz r3, 1(r3) /* retrieve specified reg offset contents */ + eieio + sync + bclr 20, 0 /* return to caller */ + +/* + * Print a message to COM1 in polling mode + * r10=COM1 port, r3=(char*)string + */ +.globl Printf +Printf: + lis r10, CFG_ISA_IO@h /* COM1 port */ + ori r10, r10, 0x03f8 + +WaitChr: + lbz r0, 5(r10) /* read link status */ + eieio + andi. r0, r0, 0x40 /* mask transmitter empty bit */ + beq cr0, WaitChr /* wait till empty */ + lbzx r0, r0, r3 /* get char */ + stb r0, 0(r10) /* write to transmit reg */ + eieio + addi r3, r3, 1 /* next char */ + lbzx r0, r0, r3 /* get char */ + cmpwi cr1, r0, 0 /* end of string ? */ + bne cr1, WaitChr + blr + +/* + * Print 8/4/2 digits hex value to COM1 in polling mode + * r10=COM1 port, r3=val + */ +OutHex2: + li r9, 4 /* shift reg for 2 digits */ + b OHstart +OutHex4: + li r9, 12 /* shift reg for 4 digits */ + b OHstart + .globl OutHex +OutHex: + li r9, 28 /* shift reg for 8 digits */ +OHstart: + lis r10, CFG_ISA_IO@h /* COM1 port */ + ori r10, r10, 0x03f8 +OutDig: + lbz r0, 5(r10) /* read link status */ + eieio + andi. r0, r0, 0x40 /* mask transmitter empty bit */ + beq cr0, OutDig + sraw r0, r3, r9 + clrlwi r0, r0, 28 + cmpwi cr1, r0, 9 + ble cr1, digIsNum + addic r0, r0, 55 + b nextDig +digIsNum: + addic r0, r0, 48 +nextDig: + stb r0, 0(r10) /* write to transmit reg */ + eieio + addic. r9, r9, -4 + bge OutDig + blr +/* + * Print 3 digits hdec value to COM1 in polling mode + * r10=COM1 port, r3=val, r7=x00, r8=x0, r9=x, r0, r6=scratch + */ +.globl OutDec +OutDec: + li r6, 10 + divwu r0, r3, r6 /* r0 = r3 / 10, r9 = r3 mod 10 */ + mullw r10, r0, r6 + subf r9, r10, r3 + + mr r3, r0 + divwu r0, r3, r6 /* r0 = r3 / 10, r8 = r3 mod 10 */ + mullw r10, r0, r6 + subf r8, r10, r3 + + mr r3, r0 + divwu r0, r3, r6 /* r0 = r3 / 10, r7 = r3 mod 10 */ + mullw r10, r0, r6 + subf r7, r10, r3 + + lis r10, CFG_ISA_IO@h /* COM1 port */ + ori r10, r10, 0x03f8 + + or. r7, r7, r7 + bne noblank1 + li r3, 0x20 + b OutDec4 + +noblank1: + addi r3, r7, 48 /* convert to ASCII */ + +OutDec4: + lbz r0, 0(r13) /* slow down dummy read */ + lbz r0, 5(r10) /* read link status */ + eieio + andi. r0, r0, 0x40 /* mask transmitter empty bit */ + beq cr0, OutDec4 + stb r3, 0(r10) /* x00 to transmit */ + eieio + + or. r7, r7, r8 + beq OutDec5 + + addi r3, r8, 48 /* convert to ASCII */ +OutDec5: + lbz r0, 0(r13) /* slow down dummy read */ + lbz r0, 5(r10) /* read link status */ + eieio + andi. r0, r0, 0x40 /* mask transmitter empty bit */ + beq cr0, OutDec5 + stb r3, 0(r10) /* x0 to transmit */ + eieio + + addi r3, r9, 48 /* convert to ASCII */ +OutDec6: + lbz r0, 0(r13) /* slow down dummy read */ + lbz r0, 5(r10) /* read link status */ + eieio + andi. r0, r0, 0x40 /* mask transmitter empty bit */ + beq cr0, OutDec6 + stb r3, 0(r10) /* x to transmit */ + eieio + blr +/* + * Print a char to COM1 in polling mode + * r10=COM1 port, r3=char + */ +.globl OutChr +OutChr: + lis r10, CFG_ISA_IO@h /* COM1 port */ + ori r10, r10, 0x03f8 + +OutChr1: + lbz r0, 5(r10) /* read link status */ + eieio + andi. r0, r0, 0x40 /* mask transmitter empty bit */ + beq cr0, OutChr1 /* wait till empty */ + stb r3, 0(r10) /* write to transmit reg */ + eieio + blr +/* + * Input: r3 adr to read + * Output: r3 val or -1 for error + */ +spdRead: + mfspr r26, 8 /* save link register */ + + lis r30, CFG_ISA_IO@h + ori r30, r30, 0x220 /* GPIO Port 1 */ + li r7, 0x00 + li r8, 0x100 + and. r5, r3, r8 + beq spdbank0 + li r12, 0x08 + li r4, 0x10 + li r6, 0x18 + b spdRead1 + +spdbank0: + li r12, 0x20 /* set I2C data */ + li r4, 0x40 /* set I2C clock */ + li r6, 0x60 /* set I2C clock and data */ + +spdRead1: + li r8, 0x80 + + bl spdStart /* access I2C bus as master */ + li r10, 0xa0 /* write to SPD */ + bl spdWriteByte + bl spdReadAck /* ACK returns in r10 */ + cmpw cr0, r10, r7 + bne AckErr /* r10 must be 0, if ACK received */ + mr r10, r3 /* adr to read */ + bl spdWriteByte + bl spdReadAck + cmpw cr0, r10, r7 + bne AckErr + bl spdStart + li r10, 0xa1 /* read from SPD */ + bl spdWriteByte + bl spdReadAck + cmpw cr0, r10, r7 + bne AckErr + bl spdReadByte /* return val in r10 */ + bl spdWriteAck + bl spdStop /* release I2C bus */ + mr r3, r10 + mtspr 8, r26 /* restore link register */ + blr +/* + * ACK error occurred + */ +AckErr: + bl spdStop + orc r3, r0, r0 /* return -1 */ + mtspr 8, r26 /* restore link register */ + blr + +/* + * Routines to read from RAM spd. + * r30 - GPIO Port1 address in all cases. + * r4 - clock mask for SPD + * r6 - port mask for SPD + * r12 - data mask for SPD + */ +waitSpd: + li r0, 0x1000 + mtctr r0 +wSpd: + bdnz wSpd + bclr 20, 0 /* return to caller */ + +/* + * establish START condition on I2C bus + */ +spdStart: + mfspr r27, 8 /* save link register */ + stb r6, 0(r30) /* set SDA and SCL */ + eieio + stb r6, 1(r30) /* switch GPIO to output */ + eieio + bl waitSpd + stb r4, 0(r30) /* reset SDA */ + eieio + bl waitSpd + stb r7, 0(r30) /* reset SCL */ + eieio + bl waitSpd + mtspr 8, r27 + bclr 20, 0 /* return to caller */ + +/* + * establish STOP condition on I2C bus + */ +spdStop: + mfspr r27, 8 /* save link register */ + stb r7, 0(r30) /* reset SCL and SDA */ + eieio + stb r6, 1(r30) /* switch GPIO to output */ + eieio + bl waitSpd + stb r4, 0(r30) /* set SCL */ + eieio + bl waitSpd + stb r6, 0(r30) /* set SDA and SCL */ + eieio + bl waitSpd + stb r7, 1(r30) /* switch GPIO to input */ + eieio + mtspr 8, r27 + bclr 20, 0 /* return to caller */ + +spdReadByte: + mfspr r27, 8 + stb r4, 1(r30) /* set GPIO for SCL output */ + eieio + li r9, 0x08 + li r10, 0x00 +loopRB: + stb r7, 0(r30) /* reset SDA and SCL */ + eieio + bl waitSpd + stb r4, 0(r30) /* set SCL */ + eieio + bl waitSpd + lbz r5, 0(r30) /* read from GPIO Port1 */ + rlwinm r10, r10, 1, 0, 31 + and. r5, r5, r12 + beq clearBit + ori r10, r10, 0x01 /* append _1_ */ +clearBit: + stb r7, 0(r30) /* reset SCL */ + eieio + bl waitSpd + addic. r9, r9, -1 + bne loopRB + mtspr 8, r27 + bclr 20, 0 /* return (r10) to caller */ + +/* + * spdWriteByte writes bits 24 - 31 of r10 to I2C. + * r8 contains bit mask 0x80 + */ +spdWriteByte: + mfspr r27, 8 /* save link register */ + li r9, 0x08 /* write octet */ + and. r5, r10, r8 + bne sWB1 + stb r7, 0(r30) /* set SDA to _0_ */ + eieio + b sWB2 +sWB1: + stb r12, 0(r30) /* set SDA to _1_ */ + eieio +sWB2: + stb r6, 1(r30) /* set GPIO to output */ + eieio +loopWB: + and. r5, r10, r8 + bne sWB3 + stb r7, 0(r30) /* set SDA to _0_ */ + eieio + b sWB4 +sWB3: + stb r12, 0(r30) /* set SDA to _1_ */ + eieio +sWB4: + bl waitSpd + and. r5, r10, r8 + bne sWB5 + stb r4, 0(r30) /* set SDA to _0_ and SCL */ + eieio + b sWB6 +sWB5: + stb r6, 0(r30) /* set SDA to _1_ and SCL */ + eieio +sWB6: + bl waitSpd + and. r5, r10, r8 + bne sWB7 + stb r7, 0(r30) /* set SDA to _0_ and reset SCL */ + eieio + b sWB8 +sWB7: + stb r12, 0(r30) /* set SDA to _1_ and reset SCL */ + eieio +sWB8: + bl waitSpd + rlwinm r10, r10, 1, 0, 31 /* next bit */ + addic. r9, r9, -1 + bne loopWB + mtspr 8, r27 + bclr 20, 0 /* return to caller */ + +/* + * Read ACK from SPD, return value in r10 + */ +spdReadAck: + mfspr r27, 8 /* save link register */ + stb r4, 1(r30) /* set GPIO to output */ + eieio + stb r7, 0(r30) /* reset SDA and SCL */ + eieio + bl waitSpd + stb r4, 0(r30) /* set SCL */ + eieio + bl waitSpd + lbz r10, 0(r30) /* read GPIO Port 1 and mask SDA */ + and r10, r10, r12 + bl waitSpd + stb r7, 0(r30) /* reset SDA and SCL */ + eieio + bl waitSpd + mtspr 8, r27 + bclr 20, 0 /* return (r10) to caller */ + +spdWriteAck: + mfspr r27, 8 + stb r12, 0(r30) /* set SCL */ + eieio + stb r6, 1(r30) /* set GPIO to output */ + eieio + bl waitSpd + stb r6, 0(r30) /* SDA and SCL */ + eieio + bl waitSpd + stb r12, 0(r30) /* reset SCL */ + eieio + bl waitSpd + mtspr 8, r27 + bclr 20, 0 /* return to caller */ + +get_lnk_reg: + mflr r3 /* return link reg */ + blr + +/* + * Messages for console output + */ +.globl MessageBlock +MessageBlock: +Mok: + .ascii "OK\015\012\000" +Mfail: + .ascii "FAILED\015\012\000" +Mna: + .ascii "NA\015\012\000" +MinitLogo: + .ascii "\015\012*** ELTEC Elektronik, Mainz ***\015\012" + .ascii "\015\012Initialising RAM\015\012\000" +Mspd01: + .ascii " Reading SPD of bank0/1 ..... \000" +Mspd23: + .ascii " Reading SPD of bank2/3 ..... \000" +MfpmRam: + .ascii " RAM-Type: FPM \015\012\000" +MedoRam: + .ascii " RAM-Type: EDO \015\012\000" +MsdRam: + .ascii " RAM-Type: SDRAM \015\012\000" +Mactivate: + .ascii " Activating \000" +Mmbyte: + .ascii " MB .......... \000" + .align 4 diff --git a/board/eltec/bab7xx/bab7xx.c b/board/eltec/bab7xx/bab7xx.c new file mode 100755 index 0000000..fc48ed5 --- /dev/null +++ b/board/eltec/bab7xx/bab7xx.c @@ -0,0 +1,246 @@ +/* + * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Andreas Heppel <aheppel@sysgo.de> + * (C) Copyright 2001 ELTEC Elektronik AG + * Frank Gottschling <fgottschling@eltec.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 + */ + +#include <common.h> +#include <command.h> +#include <mpc106.h> +#include <mk48t59.h> +#include <74xx_7xx.h> +#include <ns87308.h> +#include <video_fb.h> + +/*---------------------------------------------------------------------------*/ +/* + * Get Bus clock frequency + */ +ulong bab7xx_get_bus_freq (void) +{ + /* + * The GPIO Port 1 on BAB7xx reflects the bus speed. + */ + volatile struct GPIO *gpio = + (struct GPIO *) (CFG_ISA_IO + CFG_NS87308_GPIO_BASE); + + unsigned char data = gpio->dta1; + + if (data & 0x02) + return 66666666; + + return 83333333; +} + +/*---------------------------------------------------------------------------*/ + +/* + * Measure CPU clock speed (core clock GCLK1) (Approx. GCLK frequency in Hz) + */ +ulong bab7xx_get_gclk_freq (void) +{ + static const int pllratio_to_factor[] = { + 00, 75, 70, 00, 20, 65, 100, 45, 30, 55, 40, 50, 80, 60, 35, + 00, + }; + + return pllratio_to_factor[get_hid1 () >> 28] * + (bab7xx_get_bus_freq () / 10); +} + +/*----------------------------------------------------------------------------*/ + +int checkcpu (void) +{ + uint pvr = get_pvr (); + + printf ("MPC7xx V%d.%d", (pvr >> 8) & 0xFF, pvr & 0xFF); + printf (" at %ld / %ld MHz\n", bab7xx_get_gclk_freq () / 1000000, + bab7xx_get_bus_freq () / 1000000); + + return (0); +} + +/* ------------------------------------------------------------------------- */ + +int checkboard (void) +{ +#ifdef CFG_ADDRESS_MAP_A + puts ("Board: ELTEC BAB7xx PReP\n"); +#else + puts ("Board: ELTEC BAB7xx CHRP\n"); +#endif + return (0); +} + +/* ------------------------------------------------------------------------- */ + +int checkflash (void) +{ + /* TODO: XXX XXX XXX */ + printf ("2 MB ## Test not implemented yet ##\n"); + return (0); +} + +/* ------------------------------------------------------------------------- */ + + +static unsigned int mpc106_read_cfg_dword (unsigned int reg) +{ + unsigned int reg_addr = MPC106_REG | (reg & 0xFFFFFFFC); + + out32r (MPC106_REG_ADDR, reg_addr); + + return (in32r (MPC106_REG_DATA | (reg & 0x3))); +} + +/* ------------------------------------------------------------------------- */ + +long int dram_size (int board_type) +{ + /* No actual initialisation to do - done when setting up + * PICRs MCCRs ME/SARs etc in ram_init.S. + */ + + register unsigned long i, msar1, mear1, memSize; + +#if defined(CFG_MEMTEST) + register unsigned long reg; + + printf ("Testing DRAM\n"); + + /* write each mem addr with it's address */ + for (reg = CFG_MEMTEST_START; reg < CFG_MEMTEST_END; reg += 4) + *reg = reg; + + for (reg = CFG_MEMTEST_START; reg < CFG_MEMTEST_END; reg += 4) { + if (*reg != reg) + return -1; + } +#endif + + /* + * Since MPC106 memory controller chip has already been set to + * control all memory, just read and interpret its memory boundery register. + */ + memSize = 0; + msar1 = mpc106_read_cfg_dword (MPC106_MSAR1); + mear1 = mpc106_read_cfg_dword (MPC106_MEAR1); + i = mpc106_read_cfg_dword (MPC106_MBER) & 0xf; + + do { + if (i & 0x01) /* is bank enabled ? */ + memSize += (mear1 & 0xff) - (msar1 & 0xff) + 1; + msar1 >>= 8; + mear1 >>= 8; + i >>= 1; + } while (i); + + return (memSize * 0x100000); +} + +/* ------------------------------------------------------------------------- */ + +long int initdram (int board_type) +{ + return dram_size (board_type); +} + +/* ------------------------------------------------------------------------- */ + +void after_reloc (ulong dest_addr) +{ + DECLARE_GLOBAL_DATA_PTR; + + /* + * Jump to the main U-Boot board init code + */ + board_init_r ((gd_t *) gd, dest_addr); +} + +/* ------------------------------------------------------------------------- */ + +/* + * do_reset is done here because in this case it is board specific, since the + * 7xx CPUs can only be reset by external HW (the RTC in this case). + */ +void do_reset (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[]) +{ +#if defined(CONFIG_RTC_MK48T59) + /* trigger watchdog immediately */ + rtc_set_watchdog (1, RTC_WD_RB_16TH); +#else +#error "You must define the macro CONFIG_RTC_MK48T59." +#endif +} + +/* ------------------------------------------------------------------------- */ + +#if defined(CONFIG_WATCHDOG) +/* + * Since the 7xx CPUs don't have an internal watchdog, this function is + * board specific. We use the RTC here. + */ +void watchdog_reset (void) +{ +#if defined(CONFIG_RTC_MK48T59) + /* we use a 32 sec watchdog timer */ + rtc_set_watchdog (8, RTC_WD_RB_4); +#else +#error "You must define the macro CONFIG_RTC_MK48T59." +#endif +} +#endif /* CONFIG_WATCHDOG */ + +/* ------------------------------------------------------------------------- */ + +#ifdef CONFIG_CONSOLE_EXTRA_INFO +extern GraphicDevice smi; + +void video_get_info_str (int line_number, char *info) +{ + /* init video info strings for graphic console */ + switch (line_number) { + case 1: + sprintf (info, " MPC7xx V%d.%d at %ld / %ld MHz", + (get_pvr () >> 8) & 0xFF, + get_pvr () & 0xFF, + bab7xx_get_gclk_freq () / 1000000, + bab7xx_get_bus_freq () / 1000000); + return; + case 2: + sprintf (info, + " ELTEC BAB7xx with %ld MB DRAM and %ld MB FLASH", + dram_size (0) / 0x100000, flash_init () / 0x100000); + return; + case 3: + sprintf (info, " %s", smi.modeIdent); + return; + } + + /* no more info lines */ + *info = 0; + return; +} +#endif + +/*---------------------------------------------------------------------------*/ diff --git a/board/eltec/bab7xx/config.mk b/board/eltec/bab7xx/config.mk new file mode 100755 index 0000000..aa463c5 --- /dev/null +++ b/board/eltec/bab7xx/config.mk @@ -0,0 +1,26 @@ +# +# (C) Copyright 2000 +# Wolfgang Denk, DENX Software Engineering, wd@denx.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 +# + +TEXT_BASE = 0xFFF00000 + +PLATFORM_CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) diff --git a/board/eltec/bab7xx/dc_srom.c b/board/eltec/bab7xx/dc_srom.c new file mode 100755 index 0000000..a44af6e --- /dev/null +++ b/board/eltec/bab7xx/dc_srom.c @@ -0,0 +1,291 @@ +/* + * (C) Copyright 2002 ELTEC Elektronik AG + * Frank Gottschling <fgottschling@eltec.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 + */ + +/* + * SRom I/O routines. + */ + +#include <common.h> +#include <pci.h> +#include "srom.h" + +#define SROM_RD 0x00004000 /* Read from Boot ROM */ +#define SROM_WR 0x00002000 /* Write to Boot ROM */ +#define SROM_SR 0x00000800 /* Select Serial ROM when set */ + +#define DT_IN 0x00000004 /* Serial Data In */ +#define DT_CLK 0x00000002 /* Serial ROM Clock */ +#define DT_CS 0x00000001 /* Serial ROM Chip Select */ + +static u_int dc_srom_iobase; + +/*----------------------------------------------------------------------------*/ + +static int inl(u_long addr) +{ + return le32_to_cpu(*(volatile u_long *)(addr)); +} + +/*----------------------------------------------------------------------------*/ + +static void outl (int command, u_long addr) +{ + *(volatile u_long *)(addr) = cpu_to_le32(command); +} + +/*----------------------------------------------------------------------------*/ + +static void sendto_srom(u_int command, u_long addr) +{ + outl(command, addr); + udelay(1); + + return; +} + +/*----------------------------------------------------------------------------*/ + +static int getfrom_srom(u_long addr) +{ + s32 tmp; + + tmp = inl(addr); + udelay(1); + + return tmp; +} + +/*----------------------------------------------------------------------------*/ + +static void srom_latch (u_int command, u_long addr) +{ + sendto_srom (command, addr); + sendto_srom (command | DT_CLK, addr); + sendto_srom (command, addr); + + return; +} + +/*----------------------------------------------------------------------------*/ + +static void srom_command_rd (u_int command, u_long addr) +{ + srom_latch (command, addr); + srom_latch (command, addr); + srom_latch ((command & 0x0000ff00) | DT_CS, addr); + + return; +} + +/*----------------------------------------------------------------------------*/ + +static void srom_command_wr (u_int command, u_long addr) +{ + srom_latch (command, addr); + srom_latch ((command & 0x0000ff00) | DT_CS, addr); + srom_latch (command, addr); + + return; +} + +/*----------------------------------------------------------------------------*/ + +static void srom_address(u_int command, u_long addr, u_char offset) +{ + int i; + signed char a; + + a = (char)(offset << 2); + for (i=0; i<6; i++, a <<= 1) + { + srom_latch(command | ((a < 0) ? DT_IN : 0), addr); + } + udelay(1); + + i = (getfrom_srom(addr) >> 3) & 0x01; + + return; +} +/*----------------------------------------------------------------------------*/ + +static short srom_data_rd (u_int command, u_long addr) +{ + int i; + short word = 0; + s32 tmp; + + for (i=0; i<16; i++) + { + sendto_srom(command | DT_CLK, addr); + tmp = getfrom_srom(addr); + sendto_srom(command, addr); + + word = (word << 1) | ((tmp >> 3) & 0x01); + } + + sendto_srom(command & 0x0000ff00, addr); + + return word; +} + +/*----------------------------------------------------------------------------*/ + +static int srom_data_wr (u_int command, u_long addr, short val) +{ + int i; + u_long longVal; + s32 tmp; + + longVal = (u_long)(le16_to_cpu(val)); + + for (i=0; i<16; i++) + { + tmp = (longVal & 0x8000)>>13; + + sendto_srom (tmp | command, addr); + sendto_srom (tmp | command | DT_CLK, addr); + sendto_srom (tmp | command, addr); + + longVal = longVal<<1; + } + + sendto_srom(command & 0x0000ff00, addr); + sendto_srom(command, addr); + + tmp = 100; + do + { + if ((getfrom_srom(dc_srom_iobase) & 0x8) == 0x8) + break; + udelay(1000); + } while (--tmp); + + if (tmp == 0) + { + printf("Write DEC21143 SRom timed out !\n"); + return (-1); + } + + return 0; +} + + +/*----------------------------------------------------------------------------*/ +static short srom_rd (u_long addr, u_char offset) +{ + sendto_srom (SROM_RD | SROM_SR, addr); + srom_latch (SROM_RD | SROM_SR | DT_CS, addr); + + srom_command_rd (SROM_RD | SROM_SR | DT_IN | DT_CS, addr); + + srom_address (SROM_RD | SROM_SR | DT_CS, addr, offset); + + return srom_data_rd (SROM_RD | SROM_SR | DT_CS, addr); +} + +/*----------------------------------------------------------------------------*/ + +static void srom_wr_enable (u_long addr) +{ + int i; + + sendto_srom (SROM_WR | SROM_SR, addr); + srom_latch (SROM_WR | SROM_SR | DT_CS, addr); + + srom_latch (SROM_WR | SROM_SR | DT_IN | DT_CS, addr); + srom_latch (SROM_WR | SROM_SR | DT_CS, addr); + srom_latch (SROM_WR | SROM_SR | DT_CS, addr); + + for (i=0; i<6; i++) + { + srom_latch (SROM_WR | SROM_SR | DT_IN | DT_CS, addr); + } +} + +/*----------------------------------------------------------------------------*/ + +static int srom_wr (u_long addr, u_char offset, short val) +{ + srom_wr_enable (addr); + + sendto_srom (SROM_WR | SROM_SR, addr); + srom_latch (SROM_WR | SROM_SR | DT_CS, addr); + + srom_command_wr (SROM_WR | SROM_SR | DT_IN | DT_CS, addr); + + srom_address (SROM_WR | SROM_SR | DT_CS, addr, offset); + + return srom_data_wr (SROM_WR | SROM_SR | DT_CS, addr, val); +} + +/*----------------------------------------------------------------------------*/ +/* + * load data from the srom + */ +int dc_srom_load (u_short *dest) +{ + int offset; + short tmp; + + /* get srom iobase from local network controller */ + pci_read_config_dword(PCI_BDF(0,14,0), PCI_BASE_ADDRESS_1, &dc_srom_iobase); + dc_srom_iobase &= PCI_BASE_ADDRESS_MEM_MASK; + dc_srom_iobase = pci_mem_to_phys(PCI_BDF(0,14,0), dc_srom_iobase); + dc_srom_iobase += 0x48; /* io offset for srom access */ + + memset (dest, 0, 128); + for (offset=0; offset<64; offset++) + { + tmp = srom_rd (dc_srom_iobase, offset); + *dest++ = le16_to_cpu(tmp); + } + + return (0); +} + +/*----------------------------------------------------------------------------*/ + +/* + * store data into the srom + */ +int dc_srom_store (u_short *src) +{ + int offset; + + /* get srom iobase from local network controller */ + pci_read_config_dword(PCI_BDF(0,14,0), PCI_BASE_ADDRESS_1, &dc_srom_iobase); + dc_srom_iobase &= PCI_BASE_ADDRESS_MEM_MASK; + dc_srom_iobase = pci_mem_to_phys(PCI_BDF(0,14,0), dc_srom_iobase); + dc_srom_iobase += 0x48; /* io offset for srom access */ + + for (offset=0; offset<64; offset++) + { + if (srom_wr (dc_srom_iobase, offset, *src) == -1) + return (-1); + src++; + } + + return (0); +} + +/*----------------------------------------------------------------------------*/ diff --git a/board/eltec/bab7xx/el_srom.c b/board/eltec/bab7xx/el_srom.c new file mode 100755 index 0000000..73f8066 --- /dev/null +++ b/board/eltec/bab7xx/el_srom.c @@ -0,0 +1,292 @@ +/* + * (C) Copyright 2002 ELTEC Elektronik AG + * Frank Gottschling <fgottschling@eltec.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 + */ + +#include <common.h> +#include "srom.h" + +/*----------------------------------------------------------------------------*/ +/* + * START sequence + * _ _________ + * SCLK _> \____ + * _ ____ + * SDIO _> \_________ + * : : : + */ +static void eepStart (void) +{ + out8(I2C_BUS_DAT, 0x60); /* SCLK = high SDIO = high */ + out8(I2C_BUS_DIR, 0x60); /* set output direction for SCLK/SDIO */ + udelay(10); + out8(I2C_BUS_DAT, 0x40); /* SCLK = high SDIO = low */ + udelay(10); + out8(I2C_BUS_DAT, 0x00); /* SCLK = low SDIO = low */ + udelay(10); +} + +/*----------------------------------------------------------------------------*/ +/* + * STOP sequence + * _______ + * SCLK _____/ + * _ ___ + * SDIO _>_______/ + * : : : + */ +static void eepStop (void) +{ + out8(I2C_BUS_DAT, 0x00); /* SCLK = low SDIO = low */ + out8(I2C_BUS_DIR, 0x60); /* set output direction for SCLK/SDIO */ + udelay(10); + out8(I2C_BUS_DAT, 0x40); /* SCLK = high SDIO = low */ + udelay(10); + out8(I2C_BUS_DAT, 0x60); /* SCLK = high SDIO = high */ + udelay(10); + out8(I2C_BUS_DIR, 0x00); /* reset to input direction */ +} + +/*----------------------------------------------------------------------------*/ +/* + * Read one byte from EEPROM + * ___ ___ ___ ___ ___ ___ ___ ___ + * SCLK ___/ \___/ \___/ \___/ \___/ \___/ \___/ \___/ \ + * _________________________________________________________________ + * SDIO > ^ ^ ^ ^ ^ ^ ^ ^ + * : : : : : : : : : : : : : : : : : + */ +static unsigned char eepReadByte (void) +{ + register unsigned char buf = 0x00; + register int i; + + out8(I2C_BUS_DIR, 0x40); + + for (i = 0; i < 8; i++) + { + out8(I2C_BUS_DAT, 0x00); /* SCLK = low SDIO = high */ + udelay(10); + out8(I2C_BUS_DAT, 0x40); /* SCLK = high SDIO = high */ + udelay(15); + buf <<= 1; + buf = (in8(I2C_BUS_DAT) & 0x20) ? (buf | 0x01) : (buf & 0xFE); + out8(I2C_BUS_DAT, 0x00); /* SCLK = low SDIO = high */ + udelay(10); + } + return(buf); +} + +/*----------------------------------------------------------------------------*/ +/* + * Write one byte to EEPROM + * ___ ___ ___ ___ ___ ___ ___ ___ + * SCLK __/ \___/ \___/ \___/ \___/ \___/ \___/ \___/ \__ + * _______ _______ _______ _______ _______ _______ _______ ________ + * SDIO X_______X_______X_______X_______X_______X_______X_______X________ + * : 7 : 6 : 5 : 4 : 3 : 2 : 1 : 0 + */ +static void eepWriteByte (register unsigned char buf) +{ + register int i; + + (buf & 0x80) ? out8(I2C_BUS_DAT, 0x20) : out8(I2C_BUS_DAT, 0x00); /* SCLK = low SDIO = data */ + out8(I2C_BUS_DIR, 0x60); + + for (i = 7; i >= 0; i--) + { + (buf & 0x80) ? out8(I2C_BUS_DAT, 0x20) : out8(I2C_BUS_DAT, 0x00); /* SCLK=low SDIO=data */ + udelay(10); + (buf & 0x80) ? out8(I2C_BUS_DAT, 0x60) : out8(I2C_BUS_DAT, 0x40); /* SCLK=high SDIO=data */ + udelay(15); + (buf & 0x80) ? out8(I2C_BUS_DAT, 0x20) : out8(I2C_BUS_DAT, 0x00); /* SCLK=low SDIO=data */ + udelay(10); + buf <<= 1; + } +} + +/*----------------------------------------------------------------------------*/ +/* + * Read data acknowledge of EEPROM + * _______ + * SCLK ____/ \___ + * _______________ + * SDIO > + * : : ^ : + */ +static int eepReadAck (void) +{ + int retval; + + out8(I2C_BUS_DIR, 0x40); + out8(I2C_BUS_DAT, 0x00); /* SCLK = low SDIO = high */ + udelay(10); + out8(I2C_BUS_DAT, 0x40); /* SCLK = high SDIO = high */ + udelay(10); + retval = (in8(I2C_BUS_DAT) & 0x20) ? ERROR : 0; + udelay(10); + out8(I2C_BUS_DAT, 0x00); /* SCLK = low SDIO = high */ + udelay(10); + + return(retval); +} + +/*----------------------------------------------------------------------------*/ +/* + * Write data acknowledge to EEPROM + * _______ + * SCLK ____/ \___ + * + * SDIO >_______________ + * : : : + */ +static void eepWriteAck (unsigned char ack) +{ + ack ? out8(I2C_BUS_DAT, 0x20) : out8(I2C_BUS_DAT, 0x00); /* SCLK = low SDIO = ack */ + out8(I2C_BUS_DIR, 0x60); + udelay(10); + ack ? out8(I2C_BUS_DAT, 0x60) : out8(I2C_BUS_DAT, 0x40); /* SCLK = high SDIO = ack */ + udelay(15); + ack ? out8(I2C_BUS_DAT, 0x20) : out8(I2C_BUS_DAT, 0x00); /* SCLK = low SDIO = ack */ + udelay(10); +} + +/*----------------------------------------------------------------------------*/ +/* + * Read bytes from EEPROM + */ +int el_srom_load (addr, buf, cnt, device, block) +unsigned char addr; +unsigned char *buf; +int cnt; +unsigned char device; +unsigned char block; +{ + register int i; + + for (i=0;i<cnt;i++) + { + eepStart(); + eepWriteByte(0xA0 | device | block); + if (eepReadAck() == ERROR) + { + eepStop(); + return(ERROR); + } + eepWriteByte(addr++); + if (eepReadAck() == ERROR) + { + eepStop(); + return(ERROR); + } + eepStart(); + + eepWriteByte(0xA1 | device | block); + if (eepReadAck() == ERROR) + { + eepStop(); + return(ERROR); + } + + *buf++ = eepReadByte(); + eepWriteAck(1); + eepStop(); + + if ((addr == 0) && (i != (cnt-1))) /* is it the same block ? */ + { + if (block == FIRST_BLOCK) + block = SECOND_BLOCK; + else + return(ERROR); + } + } + return(cnt); +} + +/*----------------------------------------------------------------------------*/ +/* + * + * Write bytes to EEPROM + * + */ +int el_srom_store (addr, buf, cnt, device, block) +unsigned char addr, *buf, device, block; +int cnt; +{ + register int i, retVal; + + for (i=0;i<cnt;i++) + { + retVal = ERROR; + do + { + eepStart(); + eepWriteByte(0xA0 | device | block); + if ((retVal = eepReadAck()) == ERROR) + eepStop(); + } while (retVal == ERROR); + + eepWriteByte(addr++); + if (eepReadAck() == ERROR) return(ERROR); + + if ((addr == 0) && (i != (cnt-1))) /* is it the same block ? */ + { + if (block == FIRST_BLOCK) + block = SECOND_BLOCK; + else + return(ERROR); + } + + eepWriteByte(*buf++); + if (eepReadAck() == ERROR) + return(ERROR); + + eepStop(); + } + return(cnt); +} + +/*----------------------------------------------------------------------------*/ +/* + * calculate checksum for ELTEC revision srom + */ +unsigned long el_srom_checksum (ptr, size) +register unsigned char *ptr; +unsigned long size; +{ + u_long f, accu = 0; + u_int i; + u_char byte; + + for (; size; size--) + { + byte = *ptr++; + for (i = 8; i; i--) + { + f = ((byte & 1) ^ (accu & 1)) ? 0x84083001 : 0; + accu >>= 1; accu ^= f; + byte >>= 1; + } + } + return(accu); +} + +/*----------------------------------------------------------------------------*/ diff --git a/board/eltec/bab7xx/flash.c b/board/eltec/bab7xx/flash.c new file mode 100755 index 0000000..442dd00 --- /dev/null +++ b/board/eltec/bab7xx/flash.c @@ -0,0 +1,512 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.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 + */ + +/* + * 07-10-2002 Frank Gottschling: added 29F032 flash (ELPPC). + * fixed monitor protection part + * + * 09-18-2001 Andreas Heppel: Reduced the code in here to the usage + * of AMD's 29F040 and 29F016 flashes, since the BAB7xx does use + * any other. + */ + +#include <common.h> +#include <asm/processor.h> +#include <asm/pci_io.h> + +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ + +ulong flash_get_size (vu_long *addr, flash_info_t *info); +static int write_word (flash_info_t *info, ulong dest, ulong data); + +/*flash command address offsets*/ + +#define ADDR0 (0x555) +#define ADDR1 (0x2AA) +#define ADDR3 (0x001) + +#define FLASH_WORD_SIZE unsigned char + +/*----------------------------------------------------------------------------*/ + +unsigned long flash_init (void) +{ + unsigned long size1, size2; + int i; + + /* Init: no FLASHes known */ + for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) + { + flash_info[i].flash_id = FLASH_UNKNOWN; + } + + /* initialise 1st flash */ + size1 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]); + + if (flash_info[0].flash_id == FLASH_UNKNOWN) + { + printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", + size1, size1<<20); + } + + /* initialise 2nd flash */ + size2 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]); + + if (flash_info[1].flash_id == FLASH_UNKNOWN) + { + printf ("## Unknown FLASH on Bank 1 - Size = 0x%08lx = %ld MB\n", + size2, size2<<20); + } + + /* monitor protection ON by default */ + if (size1 == 512*1024) + { + (void)flash_protect(FLAG_PROTECT_SET, + FLASH_BASE0_PRELIM, + FLASH_BASE0_PRELIM+monitor_flash_len-1, + &flash_info[0]); + } + if (size2 == 512*1024) + { + (void)flash_protect(FLAG_PROTECT_SET, + FLASH_BASE1_PRELIM, + FLASH_BASE1_PRELIM+monitor_flash_len-1, + &flash_info[1]); + } + if (size2 == 4*1024*1024) + { + (void)flash_protect(FLAG_PROTECT_SET, + CFG_FLASH_BASE, + CFG_FLASH_BASE+monitor_flash_len-1, + &flash_info[1]); + } + + return (size1 + size2); +} + +/*----------------------------------------------------------------------------*/ + +void flash_print_info (flash_info_t *info) +{ + int i; + int k; + int size; + int erased; + volatile unsigned long *flash; + + if (info->flash_id == FLASH_UNKNOWN) { + printf ("missing or unknown FLASH type\n"); + flash_init(); + } + + if (info->flash_id == FLASH_UNKNOWN) { + printf ("missing or unknown FLASH type\n"); + return; + } + + switch (info->flash_id & FLASH_VENDMASK) { + case FLASH_MAN_AMD: + printf ("AMD "); + break; + default: + printf ("Unknown Vendor "); + break; + } + + switch (info->flash_id & FLASH_TYPEMASK) { + case AMD_ID_F040B: + printf ("AM29F040B (4 Mbit)\n"); + break; + case AMD_ID_F016D: + printf ("AM29F016D (16 Mbit)\n"); + break; + case AMD_ID_F032B: + printf ("AM29F032B (32 Mbit)\n"); + break; + default: + printf ("Unknown Chip Type\n"); + break; + } + + if (info->size >= (1 << 20)) { + printf (" Size: %ld MB in %d Sectors\n", info->size >> 20, info->sector_count); + } else { + printf (" Size: %ld kB in %d Sectors\n", info->size >> 10, info->sector_count); + } + + printf (" Sector Start Addresses:"); + for (i=0; i<info->sector_count; ++i) { + /* + * Check if whole sector is erased + */ + if (i != (info->sector_count-1)) + size = info->start[i+1] - info->start[i]; + else + size = info->start[0] + info->size - info->start[i]; + + erased = 1; + flash = (volatile unsigned long *)info->start[i]; + size = size >> 2; /* divide by 4 for longword access */ + for (k=0; k<size; k++) { + if (*flash++ != 0xffffffff) { + erased = 0; + break; + } + } + + if ((i % 5) == 0) + printf ("\n "); + + printf (" %08lX%s%s", + info->start[i], + erased ? " E" : " ", + info->protect[i] ? "RO " : " "); + } + printf ("\n"); +} + +/*----------------------------------------------------------------------------*/ +/* + * The following code cannot be run from FLASH! + */ +ulong flash_get_size (vu_long *addr, flash_info_t *info) +{ + short i; + ulong vendor, devid; + ulong base = (ulong)addr; + volatile unsigned char *caddr = (unsigned char *)addr; + +#ifdef DEBUG + printf("flash_get_size for address 0x%lx: \n", (unsigned long)caddr); +#endif + + /* Write auto select command: read Manufacturer ID */ + caddr[0] = 0xF0; /* reset bank */ + udelay(10); + + eieio(); + caddr[0x555] = 0xAA; + udelay(10); + caddr[0x2AA] = 0x55; + udelay(10); + caddr[0x555] = 0x90; + + udelay(10); + + vendor = caddr[0]; + devid = caddr[1]; + +#ifdef DEBUG + printf("Manufacturer: 0x%lx\n", vendor); +#endif + + vendor &= 0xff; + devid &= 0xff; + + /* We accept only two AMD types */ + switch (vendor) { + case (FLASH_WORD_SIZE)AMD_MANUFACT: + info->flash_id = FLASH_MAN_AMD; + break; + default: + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + return (0); /* no or unknown flash */ + } + + switch (devid) { + case (FLASH_WORD_SIZE)AMD_ID_F040B: + info->flash_id |= AMD_ID_F040B; + info->sector_count = 8; + info->size = 0x00080000; + break; /* => 0.5 MB */ + + case (FLASH_WORD_SIZE)AMD_ID_F016D: + info->flash_id |= AMD_ID_F016D; + info->sector_count = 32; + info->size = 0x00200000; + break; /* => 2 MB */ + + case (FLASH_WORD_SIZE)AMD_ID_F032B: + info->flash_id |= AMD_ID_F032B; + info->sector_count = 64; + info->size = 0x00400000; + break; /* => 4 MB */ + + default: + info->flash_id = FLASH_UNKNOWN; + return (0); /* => no or unknown flash */ + + } + +#ifdef DEBUG + printf("flash id 0x%lx; sector count 0x%x, size 0x%lx\n", info->flash_id, info->sector_count, info->size); +#endif + + /* check for protected sectors */ + for (i = 0; i < info->sector_count; i++) { + /* sector base address */ + info->start[i] = base + i * (info->size / info->sector_count); + /* read sector protection at sector address, (A7 .. A0) = 0x02 */ + /* D0 = 1 if protected */ + caddr = (volatile unsigned char *)(info->start[i]); + info->protect[i] = caddr[2] & 1; + } + + /* + * Prevent writes to uninitialized FLASH. + */ + if (info->flash_id != FLASH_UNKNOWN) { + caddr = (volatile unsigned char *)info->start[0]; + caddr[0] = 0xF0; /* reset bank */ + } + + return (info->size); +} + +/*----------------------------------------------------------------------------*/ + +int flash_erase (flash_info_t *info, int s_first, int s_last) +{ + volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[0]); + int flag, prot, sect, l_sect; + ulong start, now, last; + int rc = 0; + + if ((s_first < 0) || (s_first > s_last)) { + if (info->flash_id == FLASH_UNKNOWN) { + printf ("- missing\n"); + } else { + printf ("- no sectors to erase\n"); + } + return 1; + } + + if ((info->flash_id == FLASH_UNKNOWN) || + (info->flash_id > FLASH_AMD_COMP)) { + printf ("Can't erase unknown flash type - aborted\n"); + return 1; + } + + prot = 0; + for (sect=s_first; sect<=s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } + } + + if (prot) { + printf ("- Warning: %d protected sectors will not be erased!\n", + prot); + } else { + printf ("\n"); + } + + l_sect = -1; + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts(); + + addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA; + addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055; + addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080; + addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA; + addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055; + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect<=s_last; sect++) { + if (info->protect[sect] == 0) { /* not protected */ + addr = (FLASH_WORD_SIZE *)(info->start[sect]); + if (info->flash_id & FLASH_MAN_SST) { + addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA; + addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055; + addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080; + addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA; + addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055; + addr[0] = (FLASH_WORD_SIZE)0x00500050; /* block erase */ + udelay(30000); /* wait 30 ms */ + } + else + addr[0] = (FLASH_WORD_SIZE)0x00300030; /* sector erase */ + l_sect = sect; + } + } + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); + + /* wait at least 80us - let's wait 1 ms */ + udelay (1000); + + /* + * We wait for the last triggered sector + */ + if (l_sect < 0) + goto DONE; + + start = get_timer (0); + last = start; + addr = (FLASH_WORD_SIZE *)(info->start[l_sect]); + while ((addr[0] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) { + if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) { + printf ("Timeout\n"); + return 1; + } + /* show that we're waiting */ + if ((now - last) > 1000) { /* every second */ + serial_putc ('.'); + last = now; + } + } + +DONE: + /* reset to read mode */ + addr = (FLASH_WORD_SIZE *)info->start[0]; + addr[0] = (FLASH_WORD_SIZE)0x00F000F0; /* reset bank */ + + printf (" done\n"); + return rc; +} + +/*----------------------------------------------------------------------------*/ +/* + * Copy memory to flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + */ +int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) +{ + ulong cp, wp, data; + int i, l, rc; + + wp = (addr & ~3); /* get lower word aligned address */ + + /* + * handle unaligned start bytes + */ + if ((l = addr - wp) != 0) { + data = 0; + for (i=0, cp=wp; i<l; ++i, ++cp) { + data = (data << 8) | (*(uchar *)cp); + } + for (; i<4 && cnt>0; ++i) { + data = (data << 8) | *src++; + --cnt; + ++cp; + } + for (; cnt==0 && i<4; ++i, ++cp) { + data = (data << 8) | (*(uchar *)cp); + } + + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + wp += 4; + } + + /* + * handle word aligned part + */ + while (cnt >= 4) { + data = 0; + for (i=0; i<4; ++i) { + data = (data << 8) | *src++; + } + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + wp += 4; + cnt -= 4; + } + + if (cnt == 0) { + return (0); + } + + /* + * handle unaligned tail bytes + */ + data = 0; + for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) { + data = (data << 8) | *src++; + --cnt; + } + for (; i<4; ++i, ++cp) { + data = (data << 8) | (*(uchar *)cp); + } + + return (write_word(info, wp, data)); +} + +/*----------------------------------------------------------------------------*/ +/* Write a word to Flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + */ +static int write_word (flash_info_t *info, ulong dest, ulong data) +{ + volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)(info->start[0]); + volatile FLASH_WORD_SIZE *dest2 = (FLASH_WORD_SIZE *)dest; + volatile FLASH_WORD_SIZE *data2 = (FLASH_WORD_SIZE *)&data; + ulong start; + int flag; + int i; + + /* Check if Flash is (sufficiently) erased */ + if ((*((volatile FLASH_WORD_SIZE *)dest) & + (FLASH_WORD_SIZE)data) != (FLASH_WORD_SIZE)data) { + return (2); + } + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts(); + + for (i=0; i<4/sizeof(FLASH_WORD_SIZE); i++) + { + addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA; + addr2[ADDR1] = (FLASH_WORD_SIZE)0x00550055; + addr2[ADDR0] = (FLASH_WORD_SIZE)0x00A000A0; + + dest2[i] = data2[i]; + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); + + /* data polling for D7 */ + start = get_timer (0); + while ((dest2[i] & (FLASH_WORD_SIZE)0x00800080) != + (data2[i] & (FLASH_WORD_SIZE)0x00800080)) { + if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { + return (1); + } + } + } + + return (0); +} + +/*----------------------------------------------------------------------------*/ diff --git a/board/eltec/bab7xx/l2cache.c b/board/eltec/bab7xx/l2cache.c new file mode 100755 index 0000000..1e75377 --- /dev/null +++ b/board/eltec/bab7xx/l2cache.c @@ -0,0 +1,159 @@ +/* + * (C) Copyright 2002 ELTEC Elektronik AG + * Frank Gottschling <fgottschling@eltec.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 + */ + +#include <common.h> + +#if defined(CFG_L2_BAB7xx) + +#include <pci.h> +#include <mpc106.h> +#include <asm/processor.h> + +/* defines L2CR register for MPC750 */ + +#define L2CR_E 0x80000000 +#define L2CR_256K 0x10000000 +#define L2CR_512K 0x20000000 +#define L2CR_1024K 0x30000000 +#define L2CR_I 0x00200000 +#define L2CR_SL 0x00008000 +#define L2CR_IP 0x00000001 + +/*----------------------------------------------------------------------------*/ + +static int dummy (int dummy) +{ + return (dummy+1); +} + +/*----------------------------------------------------------------------------*/ + +int l2_cache_enable (int l2control) +{ + if (l2control) /* BAB750 */ + { + mtspr(SPRN_L2CR, l2control); + mtspr(SPRN_L2CR, (l2control | L2CR_I)); + while (mfspr(SPRN_L2CR) & L2CR_IP) + ; + mtspr(SPRN_L2CR, (l2control | L2CR_E)); + return (0); + } + else /* BAB740 */ + { + int picr1, picr2, mask; + int picr2CacheSize, cacheSize; + int *d; + int devbusfn; + u32 reg32; + + devbusfn = pci_find_device(PCI_VENDOR_ID_MOTOROLA, + PCI_DEVICE_ID_MOTOROLA_MPC106, 0); + if (devbusfn == -1) + return (-1); + + pci_read_config_dword (devbusfn, PCI_PICR2, ®32); + reg32 &= ~PICR2_L2_EN; + pci_write_config_dword (devbusfn, PCI_PICR2, reg32); + + /* cache size */ + if (*(volatile unsigned char *) (CFG_ISA_IO + 0x220) & 0x04) + { + /* cache size is 512 KB */ + picr2CacheSize = PICR2_L2_SIZE_512K; + cacheSize = 0x80000; + } + else + { + /* cache size is 256 KB */ + picr2CacheSize = PICR2_L2_SIZE_256K; + cacheSize = 0x40000; + } + + /* setup PICR1 */ + mask = + ~(PICR1_CF_BREAD_WS(1) | + PICR1_CF_BREAD_WS(2) | + PICR1_CF_CBA(0xff) | + PICR1_CF_CACHE_1G | + PICR1_CF_DPARK | + PICR1_CF_APARK | + PICR1_CF_L2_CACHE_MASK); + + picr1 = + (PICR1_CF_CBA(0x3f) | + PICR1_CF_CACHE_1G | + PICR1_CF_APARK | + PICR1_CF_DPARK | + PICR1_CF_L2_COPY_BACK); /* PICR1_CF_L2_WRITE_THROUGH */ + + pci_read_config_dword (devbusfn, PCI_PICR1, ®32); + reg32 &= mask; + reg32 |= picr1; + pci_write_config_dword (devbusfn, PCI_PICR1, reg32); + + /* + * invalidate all L2 cache + */ + picr2 = + (PICR2_CF_INV_MODE | + PICR2_CF_HIT_HIGH | + PICR2_CF_MOD_HIGH | + PICR2_CF_L2_HIT_DELAY(1) | + PICR2_CF_APHASE_WS(1) | + picr2CacheSize); + + pci_write_config_dword (devbusfn, PCI_PICR2, picr2); + + /* + * dummy transactions + */ + for (d=0; d<(int *)(2*cacheSize); d++) + dummy(*d); + + pci_write_config_dword (devbusfn, PCI_PICR2, + (picr2 | PICR2_CF_FLUSH_L2)); + + /* setup PICR2 */ + picr2 = + (PICR2_CF_FAST_CASTOUT | + PICR2_CF_WDATA | + PICR2_CF_ADDR_ONLY_DISABLE | + PICR2_CF_HIT_HIGH | + PICR2_CF_MOD_HIGH | + PICR2_L2_UPDATE_EN | + PICR2_L2_EN | + PICR2_CF_APHASE_WS(1) | + PICR2_CF_DATA_RAM_PBURST | + PICR2_CF_L2_HIT_DELAY(1) | + PICR2_CF_SNOOP_WS(2) | + picr2CacheSize); + + pci_write_config_dword (devbusfn, PCI_PICR2, picr2); + } + return (0); +} + +/*----------------------------------------------------------------------------*/ + +#endif /* (CFG_L2_BAB7xx) */ diff --git a/board/eltec/bab7xx/misc.c b/board/eltec/bab7xx/misc.c new file mode 100755 index 0000000..6a24807 --- /dev/null +++ b/board/eltec/bab7xx/misc.c @@ -0,0 +1,547 @@ +/* + * (C) Copyright 2002 ELTEC Elektronik AG + * Frank Gottschling <fgottschling@eltec.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 + */ + +/* includes */ +#include <common.h> +#include <linux/ctype.h> +#include <pci.h> +#include <net.h> +#include <mpc106.h> +#include <w83c553f.h> +#include "srom.h" + +/* imports */ +extern char console_buffer[CFG_CBSIZE]; +extern int l2_cache_enable (int l2control); +extern void *nvram_read (void *dest, const short src, size_t count); +extern void nvram_write (short dest, const void *src, size_t count); + +/* globals */ +unsigned int ata_reset_time = 60; +unsigned int scsi_reset_time = 10; +unsigned int eltec_board; + +/* BAB750 uses SYM53C875(default) and BAB740 uses SYM53C860 + * values fixed after board identification + */ +unsigned short scsi_dev_id = PCI_DEVICE_ID_NCR_53C875; +unsigned int scsi_max_scsi_id = 15; +unsigned char scsi_sym53c8xx_ccf = 0x13; + +/*----------------------------------------------------------------------------*/ +/* + * handle sroms on BAB740/750 + * fix ether address + * L2 cache initialization + * ide dma control + */ +int misc_init_r (void) +{ + revinfo eerev; + char *ptr; + u_int i, l, initSrom, copyNv; + char buf[256]; + char hex[23] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, + 0, 0, 0, 0, 10, 11, 12, 13, 14, 15 }; + pci_dev_t bdf; + + char sromSYM[] = { +#ifdef TULIP_BUG + /* 10BaseT, 100BaseTx no full duplex modes */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x04, 0x01, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x08, + 0x02, 0x86, 0x02, 0x00, 0xaf, 0x08, 0xa5, 0x00, + 0x88, 0x04, 0x03, 0x27, 0x08, 0x25, 0x00, 0x61, + 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xe8 +#endif + /* 10BaseT, 10BaseT-FD, 100BaseTx, 100BaseTx-FD */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x04, 0x01, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x08, + 0x04, 0x86, 0x02, 0x00, 0xaf, 0x08, 0xa5, 0x00, + 0x86, 0x02, 0x04, 0xaf, 0x08, 0xa5, 0x00, 0x88, + 0x04, 0x03, 0x27, 0x08, 0x25, 0x00, 0x61, 0x80, + 0x88, 0x04, 0x05, 0x27, 0x08, 0x25, 0x00, 0x61, + 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x77 + }; + + char sromMII[] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x04, 0x01, 0x00, 0x00, 0x5b, 0x00, + 0x2e, 0x4d, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x08, + 0x01, 0x95, 0x03, 0x00, 0x00, 0x04, 0x01, 0x08, + 0x00, 0x00, 0x02, 0x08, 0x02, 0x00, 0x00, 0x78, + 0xe0, 0x01, 0x00, 0x50, 0x00, 0x18, 0x80, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xde, 0x41 + }; + + /* + * Check/Remake revision info + */ + initSrom = 0; + copyNv = 0; + + /* read out current revision srom contens */ + el_srom_load (0x0000, (u_char*)&eerev, sizeof(revinfo), + SECOND_DEVICE, FIRST_BLOCK); + + /* read out current nvram shadow image */ + nvram_read (buf, CFG_NV_SROM_COPY_ADDR, CFG_SROM_SIZE); + + if (strcmp (eerev.magic, "ELTEC") != 0) + { + /* srom is not initialized -> create a default revision info */ + for (i = 0, ptr = (char *)&eerev; i < sizeof(revinfo); i++) + *ptr++ = 0x00; + strcpy(eerev.magic, "ELTEC"); + eerev.revrev[0] = 1; + eerev.revrev[1] = 0; + eerev.size = 0x00E0; + eerev.category[0] = 0x01; + + /* node id from dead e128 as default */ + eerev.etheraddr[0] = 0x00; + eerev.etheraddr[1] = 0x00; + eerev.etheraddr[2] = 0x5B; + eerev.etheraddr[3] = 0x00; + eerev.etheraddr[4] = 0x2E; + eerev.etheraddr[5] = 0x4D; + + /* cache config word for bab750 */ + *(int*)&eerev.res[0] = CLK2P0TO1_1MB_PB_0P5DH; + + initSrom = 1; /* force dialog */ + copyNv = 1; /* copy to nvram */ + } + + if ((copyNv == 0) && (el_srom_checksum((u_char*)&eerev, CFG_SROM_SIZE) != + el_srom_checksum((u_char*)buf, CFG_SROM_SIZE))) + { + printf ("Invalid revision info copy in nvram !\n"); + printf ("Press key:\n <c> to copy current revision info to nvram.\n"); + printf (" <r> to reenter revision info.\n"); + printf ("=> "); + if (0 != readline (NULL)) + { + switch ((char)toupper(console_buffer[0])) + { + case 'C': + copyNv = 1; + break; + case 'R': + copyNv = 1; + initSrom = 1; + break; + } + } + } + + if (initSrom) + { + memcpy (buf, &eerev.revision[0][0], 14); /* save all revision info */ + printf ("Enter revision number (0-9): %c ", eerev.revision[0][0]); + if (0 != readline (NULL)) + { + eerev.revision[0][0] = (char)toupper(console_buffer[0]); + memcpy (&eerev.revision[1][0], buf, 12); /* shift rest of rev info */ + } + + printf ("Enter revision character (A-Z): %c ", eerev.revision[0][1]); + if (1 == readline (NULL)) + { + eerev.revision[0][1] = (char)toupper(console_buffer[0]); + } + + printf ("Enter board name (V-XXXX-XXXX): %s ", (char *)&eerev.board); + if (11 == readline (NULL)) + { + for (i=0; i<11; i++) + eerev.board[i] = (char)toupper(console_buffer[i]); + eerev.board[11] = '\0'; + } + + printf ("Enter serial number: %s ", (char *)&eerev.serial ); + if (6 == readline (NULL)) + { + for (i=0; i<6; i++) + eerev.serial[i] = console_buffer[i]; + eerev.serial[6] = '\0'; + } + + printf ("Enter ether node ID with leading zero (HEX): %02x%02x%02x%02x%02x%02x ", + eerev.etheraddr[0], eerev.etheraddr[1], + eerev.etheraddr[2], eerev.etheraddr[3], + eerev.etheraddr[4], eerev.etheraddr[5]); + if (12 == readline (NULL)) + { + for (i=0; i<12; i+=2) + eerev.etheraddr[i>>1] = (char)(16*hex[toupper(console_buffer[i])-'0'] + + hex[toupper(console_buffer[i+1])-'0']); + } + + l = strlen ((char *)&eerev.text); + printf("Add to text section (max 64 chr): %s ", (char *)&eerev.text ); + if (0 != readline (NULL)) + { + for (i = l; i<63; i++) + eerev.text[i] = console_buffer[i-l]; + eerev.text[63] = '\0'; + } + + if (strstr ((char *)&eerev.board, "75") != NULL) + eltec_board = 750; + else + eltec_board = 740; + + if (eltec_board == 750) + { + if (CPU_TYPE == CPU_TYPE_750) + *(int*)&eerev.res[0] = CLK2P0TO1_1MB_PB_0P5DH; + else + *(int*)&eerev.res[0] = CLK2P5TO1_1MB_PB_0P5DH; + + printf("Enter L2Cache config word with leading zero (HEX): %08X ", + *(int*)&eerev.res[0] ); + if (0 != readline (NULL)) + { + for (i=0; i<7; i+=2) + { + eerev.res[i>>1] = + (char)(16*hex[toupper(console_buffer[i])-'0'] + + hex[toupper(console_buffer[i+1])-'0']); + } + } + + /* prepare network eeprom */ + sromMII[20] = eerev.etheraddr[0]; + sromMII[21] = eerev.etheraddr[1]; + sromMII[22] = eerev.etheraddr[2]; + sromMII[23] = eerev.etheraddr[3]; + sromMII[24] = eerev.etheraddr[4]; + sromMII[25] = eerev.etheraddr[5]; + printf("\nSRom: Writing DEC21143 MII info .. "); + + if (dc_srom_store ((u_short *)sromMII) == -1) + printf("FAILED\n"); + else + printf("OK\n"); + } + + if (eltec_board == 740) + { + *(int *)&eerev.res[0] = 0; + sromSYM[20] = eerev.etheraddr[0]; + sromSYM[21] = eerev.etheraddr[1]; + sromSYM[22] = eerev.etheraddr[2]; + sromSYM[23] = eerev.etheraddr[3]; + sromSYM[24] = eerev.etheraddr[4]; + sromSYM[25] = eerev.etheraddr[5]; + printf("\nSRom: Writing DEC21143 SYM info .. "); + + if (dc_srom_store ((u_short *)sromSYM) == -1) + printf("FAILED\n"); + else + printf("OK\n"); + } + + /* update CRC */ + eerev.crc = el_srom_checksum((u_char *)eerev.board, eerev.size); + + /* write new values */ + printf("\nSRom: Writing revision info ...... "); + if (el_srom_store((BLOCK_SIZE-sizeof(revinfo)), (u_char *)&eerev, + sizeof(revinfo), SECOND_DEVICE, FIRST_BLOCK) == -1) + printf("FAILED\n\n"); + else + printf("OK\n\n"); + + /* write new values as shadow image to nvram */ + nvram_write (CFG_NV_SROM_COPY_ADDR, (void *)&eerev, CFG_SROM_SIZE); + + } /*if (initSrom) */ + + /* copy current values as shadow image to nvram */ + if (initSrom == 0 && copyNv == 1) + nvram_write (CFG_NV_SROM_COPY_ADDR, (void *)&eerev, CFG_SROM_SIZE); + + /* update environment */ + sprintf (buf, "%02x:%02x:%02x:%02x:%02x:%02x", + eerev.etheraddr[0], eerev.etheraddr[1], + eerev.etheraddr[2], eerev.etheraddr[3], + eerev.etheraddr[4], eerev.etheraddr[5]); + setenv ("ethaddr", buf); + + /* print actual board identification */ + printf("Ident: %s Ser %s Rev %c%c\n", + eerev.board, (char *)&eerev.serial, + eerev.revision[0][0], eerev.revision[0][1]); + + /* global board ident */ + if (strstr ((char *)&eerev.board, "75") != NULL) + eltec_board = 750; + else + eltec_board = 740; + + /* + * L2 cache configuration + */ +#if defined(CFG_L2_BAB7xx) + ptr = getenv("l2cache"); + if (*ptr == '0') + { + printf ("Cache: L2 NOT activated on BAB%d\n", eltec_board); + } + else + { + printf ("Cache: L2 activated on BAB%d\n", eltec_board); + l2_cache_enable(*(int*)&eerev.res[0]); + } +#endif + + /* + * Reconfig ata reset timeout from environment + */ + if ((ptr = getenv ("ata_reset_time")) != NULL) + { + ata_reset_time = (int)simple_strtoul (ptr, NULL, 10); + } + else + { + sprintf (buf, "%d", ata_reset_time); + setenv ("ata_reset_time", buf); + } + + /* + * Reconfig scsi reset timeout from environment + */ + if ((ptr = getenv ("scsi_reset_time")) != NULL) + { + scsi_reset_time = (int)simple_strtoul (ptr, NULL, 10); + } + else + { + sprintf (buf, "%d", scsi_reset_time); + setenv ("scsi_reset_time", buf); + } + + + if ((bdf = pci_find_device(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_83C553, 0)) > 0) + { + if (pci_find_device(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C860, 0) > 0) + { + /* BAB740 with SCSI=IRQ 11; SCC=IRQ 9; no IDE; NCR860 at 80 Mhz */ + scsi_dev_id = PCI_DEVICE_ID_NCR_53C860; + scsi_max_scsi_id = 7; + scsi_sym53c8xx_ccf = 0x15; + pci_write_config_byte (bdf, WINBOND_IDEIRCR, 0xb0); + } + + if ((ptr = getenv ("ide_dma_off")) != NULL) + { + u_long dma_off = simple_strtoul (ptr, NULL, 10); + /* + * setup user defined registers + * s.a. linux/drivers/ide/sl82c105.c + */ + bdf |= PCI_BDF(0,0,1); /* ide user reg at bdf function 1 */ + if (dma_off & 1) + { + pci_write_config_byte (bdf, 0x46, 1); + printf("IDE: DMA off flag set: Bus 0 : Dev 0\n"); + } + if (dma_off & 2) + { + pci_write_config_byte (bdf, 0x4a, 1); + printf("IDE: DMA off flag set: Bus 0 : Dev 1\n"); + } + if (dma_off & 4) + { + pci_write_config_byte (bdf, 0x4e, 1); + printf("IDE: DMA off flag set: Bus 1 : Dev 0\n"); + } + if (dma_off & 8) + { + pci_write_config_byte (bdf, 0x52, 1); + printf("IDE: DMA off flag set: Bus 1 : Dev 1\n"); + } + } + } + return (0); +} + +/*----------------------------------------------------------------------------*/ +/* + * BAB740 uses KENDIN KS8761 modem chip with not common setup values + */ +#ifdef CONFIG_TULIP_SELECT_MEDIA + +/* Register bits. + */ +#define BMR_SWR 0x00000001 /* Software Reset */ +#define STS_TS 0x00700000 /* Transmit Process State */ +#define STS_RS 0x000e0000 /* Receive Process State */ +#define OMR_ST 0x00002000 /* Start/Stop Transmission Command */ +#define OMR_SR 0x00000002 /* Start/Stop Receive */ +#define OMR_PS 0x00040000 /* Port Select */ +#define OMR_SDP 0x02000000 /* SD Polarity - MUST BE ASSERTED */ +#define OMR_PM 0x00000080 /* Pass All Multicast */ +#define OMR_PR 0x00000040 /* Promiscuous Mode */ +#define OMR_PCS 0x00800000 /* PCS Function */ +#define OMR_TTM 0x00400000 /* Transmit Threshold Mode */ + +/* Ethernet chip registers. + */ +#define DE4X5_BMR 0x000 /* Bus Mode Register */ +#define DE4X5_TPD 0x008 /* Transmit Poll Demand Reg */ +#define DE4X5_RRBA 0x018 /* RX Ring Base Address Reg */ +#define DE4X5_TRBA 0x020 /* TX Ring Base Address Reg */ +#define DE4X5_STS 0x028 /* Status Register */ +#define DE4X5_OMR 0x030 /* Operation Mode Register */ +#define DE4X5_SISR 0x060 /* SIA Status Register */ +#define DE4X5_SICR 0x068 /* SIA Connectivity Register */ +#define DE4X5_TXRX 0x070 /* SIA Transmit and Receive Register */ +#define DE4X5_GPPR 0x078 /* General Purpose Port register */ +#define DE4X5_APROM 0x048 /* Ethernet Address PROM */ + +/*----------------------------------------------------------------------------*/ + +static int INL(struct eth_device* dev, u_long addr) +{ + return le32_to_cpu(*(volatile u_long *)(addr + dev->iobase)); +} + +/*----------------------------------------------------------------------------*/ + +static void OUTL(struct eth_device* dev, int command, u_long addr) +{ + *(volatile u_long *)(addr + dev->iobase) = cpu_to_le32(command); +} + +/*----------------------------------------------------------------------------*/ + +static void media_reg_init ( + struct eth_device* dev, + u32 csr14, + u32 csr15_dir, + u32 csr15_v0, + u32 csr15_v1, + u32 csr6 ) +{ + OUTL(dev, 0, DE4X5_OMR); /* CSR6 */ + udelay(10 * 1000); + OUTL(dev, 0, DE4X5_SICR); /* CSR13 */ + OUTL(dev, 1, DE4X5_SICR); /* CSR13 */ + udelay(10 * 1000); + OUTL(dev, csr14, DE4X5_TXRX); /* CSR14 */ + OUTL(dev, csr15_dir, DE4X5_GPPR); /* CSR15 */ + OUTL(dev, csr15_v0, DE4X5_GPPR); /* CSR15 */ + udelay(10 * 1000); + OUTL(dev, csr15_v1, DE4X5_GPPR); /* CSR15 */ + OUTL(dev, 0x00000301, DE4X5_SISR); /* CSR12 */ + OUTL(dev, csr6, DE4X5_OMR); /* CSR6 */ +} + +/*----------------------------------------------------------------------------*/ + +void dc21x4x_select_media(struct eth_device* dev) +{ + int i, status, ext; + extern unsigned int eltec_board; + + if (eltec_board == 740) + { + printf("SYM media select "); /* BAB740 */ + /* start autoneg. with 10 mbit */ + media_reg_init (dev, 0x3ffff, 0x08af0008, 0x00a10008, 0x00a50008, 0x02400080); + ext = status = 0; + for (i=0; i<2000+ext; i++) + { + status = INL(dev, DE4X5_SISR); + udelay(1000); + if (status & 0x2000) ext = 2000; + if ((status & 0x7000) == 0x5000) break; + } + + /* autoneg. ok -> 100MB FD */ + if ((status & 0x0100f000) == 0x0100d000) + { + media_reg_init (dev, 0x37f7f, 0x08270008, 0x00210008, 0x00250008, 0x03c40280); + printf("100baseTx-FD\n"); + } + /* autoneg. ok -> 100MB HD */ + else if ((status & 0x0080f000) == 0x0080d000) + { + media_reg_init (dev, 0x17f7f, 0x08270008, 0x00210008, 0x00250008, 0x03c40080); + printf("100baseTx\n"); + } + /* autoneg. ok -> 10MB FD */ + else if ((status & 0x0040f000) == 0x0040d000) + { + media_reg_init (dev, 0x07f7f, 0x08af0008, 0x00a10008, 0x00a50008, 0x02400280); + printf("10baseT-FD\n"); + } + /* autoneg. fail -> 10MB HD */ + else + { + media_reg_init (dev, 0x7f7f, 0x08af0008, 0x00a10008, 0x00a50008, + (OMR_SDP | OMR_TTM | OMR_PM)); + printf("10baseT\n"); + } + } + else + { + printf("MII media selected\n"); /* BAB750 */ + OUTL(dev, OMR_SDP | OMR_PS | OMR_PM, DE4X5_OMR); /* CSR6 */ + } +} +#endif /* CONFIG_TULIP_SELECT_MEDIA */ + +/*---------------------------------------------------------------------------*/ diff --git a/board/eltec/bab7xx/pci.c b/board/eltec/bab7xx/pci.c new file mode 100755 index 0000000..edbd3dd --- /dev/null +++ b/board/eltec/bab7xx/pci.c @@ -0,0 +1,120 @@ +/* + * (C) Copyright 2002 ELTEC Elektronik AG + * Frank Gottschling <fgottschling@eltec.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 + */ + +/* + * PCI initialisation for the MPC10x. + */ + +#include <common.h> +#include <pci.h> +#include <mpc106.h> + +#ifdef CONFIG_PCI + +struct pci_controller local_hose; + +void pci_init_board(void) +{ + struct pci_controller* hose = (struct pci_controller *)&local_hose; + u32 reg32; + u16 reg16; + + hose->first_busno = 0; + hose->last_busno = 0xff; + + pci_set_region(hose->regions + 0, + CFG_PCI_MEMORY_BUS, + CFG_PCI_MEMORY_PHYS, + /* + * Attention: pci_hose_phys_to_bus() failes in address compare, + * so we need (CFG_PCI_MEMORY_SIZE-1) + */ + CFG_PCI_MEMORY_SIZE-1, + PCI_REGION_MEM | PCI_REGION_MEMORY); + + /* PCI memory space */ + pci_set_region(hose->regions + 1, + CFG_PCI_MEM_BUS, + CFG_PCI_MEM_PHYS, + CFG_PCI_MEM_SIZE, + PCI_REGION_MEM); + + /* ISA/PCI memory space */ + pci_set_region(hose->regions + 2, + CFG_ISA_MEM_BUS, + CFG_ISA_MEM_PHYS, + CFG_ISA_MEM_SIZE, + PCI_REGION_MEM); + + /* PCI I/O space */ + pci_set_region(hose->regions + 3, + CFG_PCI_IO_BUS, + CFG_PCI_IO_PHYS, + CFG_PCI_IO_SIZE, + PCI_REGION_IO); + + /* ISA/PCI I/O space */ + pci_set_region(hose->regions + 4, + CFG_ISA_IO_BUS, + CFG_ISA_IO_PHYS, + CFG_ISA_IO_SIZE, + PCI_REGION_IO); + + hose->region_count = 5; + + pci_setup_indirect(hose, + MPC106_REG_ADDR, + MPC106_REG_DATA); + + pci_register_hose(hose); + + hose->last_busno = pci_hose_scan(hose); + + /* Initialises the MPC10x PCI Configuration regs. */ + pci_read_config_dword (PCI_BDF(0,0,0), PCI_PICR2, ®32); + reg32 |= PICR2_CF_SNOOP_WS(3) | + PICR2_CF_FLUSH_L2 | + PICR2_CF_L2_HIT_DELAY(3) | + PICR2_CF_APHASE_WS(3); + reg32 &= ~(PICR2_L2_EN | PICR2_L2_UPDATE_EN); + pci_write_config_dword (PCI_BDF(0,0,0), PCI_PICR2, reg32); + + pci_read_config_word (PCI_BDF(0,0,0), PCI_COMMAND, ®16); + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + pci_write_config_word(PCI_BDF(0,0,0), PCI_COMMAND, reg16); + + /* Clear non-reserved bits in status register */ + pci_write_config_word(PCI_BDF(0,0,0), PCI_STATUS, 0xffff); + + pci_read_config_dword (PCI_BDF(0,0,0), PCI_PICR1, ®32); + reg32 |= PICR1_CF_CBA(63) | + PICR1_CF_BREAD_WS(2) | + PICR1_MCP_EN | + PICR1_CF_DPARK | + PICR1_PROC_TYPE_604 | + PICR1_CF_LOOP_SNOOP | + PICR1_CF_APARK; + pci_write_config_dword (PCI_BDF(0,0,0), PCI_PICR1, reg32); +} + +#endif /* CONFIG_PCI */ diff --git a/board/eltec/bab7xx/srom.h b/board/eltec/bab7xx/srom.h new file mode 100755 index 0000000..c18ab91 --- /dev/null +++ b/board/eltec/bab7xx/srom.h @@ -0,0 +1,102 @@ +/* + * (C) Copyright 2002 ELTEC Elektronik AG + * Frank Gottschling <fgottschling@eltec.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 + */ + +/* common srom defs */ +#define FIRST_DEVICE 0x00 +#define SECOND_DEVICE 0x04 +#define FIRST_BLOCK 0x00 +#define SECOND_BLOCK 0x02 +#define BLOCK_SIZE 0x100 +#define ERROR (-1) + +#define CLK2P0TO1_1MB_PB_0P5DH 0x79000100 +#define CLK2P5TO1_1MB_PB_0P5DH 0x7B000100 + +#define CPU_TYPE_740 0x08 +#define CPU_TYPE_750 0x08 +#define CPU_TYPE ((get_pvr()>>16)&0xffff) + +#define ABS(x) ((x<0)?-x:x) +#define SROM_SHORT(pX) (*(u8 *)(pX) | *((u8 *)(pX)+1) << 8) + +/* bab7xx ELTEC srom */ +#define I2C_BUS_DAT (CFG_ISA_IO + 0x220) +#define I2C_BUS_DIR (CFG_ISA_IO + 0x221) + +/* srom at mpc107 */ +#define MPC107_I2CADDR (mpc107_eumb_addr + 0x3000) /* address */ +#define MPC107_I2CFDR (mpc107_eumb_addr + 0x3004) /* freq divider */ +#define MPC107_I2CCR (mpc107_eumb_addr + 0x3008) /* control */ +#define MPC107_I2CSR (mpc107_eumb_addr + 0x300c) /* status */ +#define MPC107_I2CDR (mpc107_eumb_addr + 0x3010) /* data */ +#define MPC107_I2C_TIMEOUT 10000000 + +/* i82559 */ +#define EE_ADDR_BITS 6 +#define EE_SIZE 0x40 /* 0x40 words */ +#define EE_CHECKSUM 0xBABA + +/* dc21143 */ +#define DEC_SROM_SIZE 128 + + +/* + * structure of revision srom + */ +typedef struct { + char magic[8]; /* 000 - Magic number */ + char revrev[2]; /* 008 - Revision of structure */ + unsigned short size; /* 00A - Size of CRC area */ + unsigned long crc; /* 00C - CRC */ + char board[16]; /* 010 - Board Revision information */ + char option[4][16]; /* 020 - Option Revision information */ + char serial[8]; /* 060 - Board serial number */ + char etheraddr[6]; /* 068 - Ethernet node addresse */ + char reserved[2]; /* 06E - Reserved */ + char revision[7][2]; /* 070 - Revision codes */ + char category[2]; /* 07E - Category codes */ + char text[64]; /* 080 - Text field */ + char res[64]; /* 0C0 - Reserved */ +} revinfo; + +unsigned long el_srom_checksum (unsigned char *ptr, unsigned long size); +int el_srom_load (unsigned char addr, unsigned char *buf, int cnt, + unsigned char device, unsigned char block); +int el_srom_store (unsigned char addr, unsigned char *buf, int cnt, + unsigned char device, unsigned char block); + +int mpc107_i2c_init (unsigned long eumb_addr, unsigned long divider); +int mpc107_i2c_read_byte (unsigned char device, unsigned char block, unsigned char offset); +int mpc107_i2c_write_byte (unsigned char device, unsigned char block, + unsigned char offset, unsigned char val); +int mpc107_srom_load (unsigned char addr, unsigned char *pBuf, int cnt, + unsigned char device, unsigned char block); +int mpc107_srom_store (unsigned char addr, unsigned char *pBuf, int cnt, + unsigned char device, unsigned char block); + +int dc_srom_load (unsigned short *dest); +int dc_srom_store (unsigned short *src); + +unsigned short eepro100_srom_checksum (unsigned short *sromdata); +void eepro100_srom_load (unsigned short *destination); +int eepro100_srom_store (unsigned short *source); diff --git a/board/eltec/bab7xx/u-boot.lds b/board/eltec/bab7xx/u-boot.lds new file mode 100755 index 0000000..d89eb6c --- /dev/null +++ b/board/eltec/bab7xx/u-boot.lds @@ -0,0 +1,138 @@ +/* + * (C) Copyright 2001 + * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc. + * + * 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 + */ + +/* + * u-boot.lds - linker script for U-Boot on the Galileo Eval Board. + */ + +OUTPUT_ARCH(powerpc) +SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib); +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + cpu/74xx_7xx/start.o (.text) + +/* store the environment in a seperate sector in the boot flash */ +/* . = env_offset; */ +/* common/environment.o(.text) */ + + *(.text) + *(.fixup) + *(.got1) + } + _etext = .; + PROVIDE (etext = .); + .rodata : + { + *(.rodata) + *(.rodata1) + *(.rodata.str1.4) + *(.eh_frame) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x00FF) & 0xFFFFFF00; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2; + __fixup_entries = (. - _FIXUP_TABLE_)>>2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(256); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(256); + __init_end = .; + + __bss_start = .; + .bss : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + } + _end = . ; + PROVIDE (end = .); +} |