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authorKevin2014-11-15 11:48:36 +0800
committerKevin2014-11-15 11:48:36 +0800
commitd04075478d378d9e15f3e1abfd14b0bd124077d4 (patch)
tree733dd964582f388b9e3e367c249946cd32a2851f /board/eltec/bab7xx
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init commit via android 4.4 uboot
Diffstat (limited to 'board/eltec/bab7xx')
-rwxr-xr-xboard/eltec/bab7xx/Makefile48
-rwxr-xr-xboard/eltec/bab7xx/asm_init.S1476
-rwxr-xr-xboard/eltec/bab7xx/bab7xx.c246
-rwxr-xr-xboard/eltec/bab7xx/config.mk26
-rwxr-xr-xboard/eltec/bab7xx/dc_srom.c291
-rwxr-xr-xboard/eltec/bab7xx/el_srom.c292
-rwxr-xr-xboard/eltec/bab7xx/flash.c512
-rwxr-xr-xboard/eltec/bab7xx/l2cache.c159
-rwxr-xr-xboard/eltec/bab7xx/misc.c547
-rwxr-xr-xboard/eltec/bab7xx/pci.c120
-rwxr-xr-xboard/eltec/bab7xx/srom.h102
-rwxr-xr-xboard/eltec/bab7xx/u-boot.lds138
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, &reg32);
+ 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, &reg32);
+ 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, &reg32);
+ 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, &reg16);
+ 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, &reg32);
+ 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 = .);
+}