upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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432 lines
14 KiB
432 lines
14 KiB
/*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* Pantelis Antoniou, Intracom S.A., panto@intracom.gr
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* U-Boot port on NetVia board
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*/
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#include <common.h>
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#include "mpc8xx.h"
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/****************************************************************/
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#if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2
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/* last value written to the external register; we cannot read back */
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unsigned int last_er_val;
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#endif
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/****************************************************************/
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/****************************************************************/
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/* some sane bit macros */
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#define _BD(_b) (1U << (31-(_b)))
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#define _BDR(_l, _h) (((((1U << (31-(_l))) - 1) << 1) | 1) & ~((1U << (31-(_h))) - 1))
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#define _BW(_b) (1U << (15-(_b)))
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#define _BWR(_l, _h) (((((1U << (15-(_l))) - 1) << 1) | 1) & ~((1U << (15-(_h))) - 1))
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#define _BB(_b) (1U << (7-(_b)))
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#define _BBR(_l, _h) (((((1U << (7-(_l))) - 1) << 1) | 1) & ~((1U << (7-(_h))) - 1))
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#define _B(_b) _BD(_b)
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#define _BR(_l, _h) _BDR(_l, _h)
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/****************************************************************/
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#define _NOT_USED_ 0xFFFFFFFF
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/****************************************************************/
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#define CS_0000 0x00000000
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#define CS_0001 0x10000000
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#define CS_0010 0x20000000
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#define CS_0011 0x30000000
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#define CS_0100 0x40000000
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#define CS_0101 0x50000000
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#define CS_0110 0x60000000
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#define CS_0111 0x70000000
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#define CS_1000 0x80000000
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#define CS_1001 0x90000000
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#define CS_1010 0xA0000000
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#define CS_1011 0xB0000000
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#define CS_1100 0xC0000000
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#define CS_1101 0xD0000000
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#define CS_1110 0xE0000000
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#define CS_1111 0xF0000000
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#define BS_0000 0x00000000
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#define BS_0001 0x01000000
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#define BS_0010 0x02000000
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#define BS_0011 0x03000000
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#define BS_0100 0x04000000
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#define BS_0101 0x05000000
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#define BS_0110 0x06000000
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#define BS_0111 0x07000000
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#define BS_1000 0x08000000
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#define BS_1001 0x09000000
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#define BS_1010 0x0A000000
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#define BS_1011 0x0B000000
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#define BS_1100 0x0C000000
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#define BS_1101 0x0D000000
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#define BS_1110 0x0E000000
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#define BS_1111 0x0F000000
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#define A10_AAAA 0x00000000
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#define A10_AAA0 0x00200000
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#define A10_AAA1 0x00300000
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#define A10_000A 0x00800000
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#define A10_0000 0x00A00000
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#define A10_0001 0x00B00000
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#define A10_111A 0x00C00000
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#define A10_1110 0x00E00000
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#define A10_1111 0x00F00000
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#define RAS_0000 0x00000000
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#define RAS_0001 0x00040000
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#define RAS_1110 0x00080000
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#define RAS_1111 0x000C0000
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#define CAS_0000 0x00000000
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#define CAS_0001 0x00010000
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#define CAS_1110 0x00020000
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#define CAS_1111 0x00030000
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#define WE_0000 0x00000000
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#define WE_0001 0x00004000
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#define WE_1110 0x00008000
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#define WE_1111 0x0000C000
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#define GPL4_0000 0x00000000
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#define GPL4_0001 0x00001000
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#define GPL4_1110 0x00002000
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#define GPL4_1111 0x00003000
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#define GPL5_0000 0x00000000
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#define GPL5_0001 0x00000400
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#define GPL5_1110 0x00000800
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#define GPL5_1111 0x00000C00
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#define LOOP 0x00000080
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#define EXEN 0x00000040
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#define AMX_COL 0x00000000
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#define AMX_ROW 0x00000020
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#define AMX_MAR 0x00000030
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#define NA 0x00000008
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#define UTA 0x00000004
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#define TODT 0x00000002
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#define LAST 0x00000001
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const uint sdram_table[0x40] = {
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/* RSS */
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CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* ACT */
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CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* NOP */
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CS_0000 | BS_1111 | A10_0001 | RAS_1111 | CAS_0001 | WE_1111 | AMX_COL | UTA, /* READ */
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CS_0001 | BS_0001 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA, /* PALL */
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CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, /* NOP */
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CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA | TODT | LAST, /* NOP */
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_NOT_USED_, _NOT_USED_,
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/* RBS */
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CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* ACT */
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CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* NOP */
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CS_0001 | BS_1111 | A10_0001 | RAS_1111 | CAS_0001 | WE_1111 | AMX_COL | UTA, /* READ */
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CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* NOP */
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CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, /* NOP */
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CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, /* NOP */
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CS_0001 | BS_0001 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL, /* PALL */
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CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | TODT | LAST, /* NOP */
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_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
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_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
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/* WSS */
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CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA,
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CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,
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CS_0000 | BS_0001 | A10_0000 | RAS_1111 | CAS_0001 | WE_0000 | AMX_COL | UTA,
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CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA | TODT | LAST,
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_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
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/* WBS */
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CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* ACT */
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CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, /* NOP */
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CS_0001 | BS_0000 | A10_0000 | RAS_1111 | CAS_0001 | WE_0000 | AMX_COL, /* WRITE */
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CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, /* NOP */
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CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, /* NOP */
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CS_1111 | BS_0001 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* NOP */
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CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA, /* NOP */
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CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA, /* PALL */
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CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA | TODT | LAST, /* NOP */
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_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
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_NOT_USED_, _NOT_USED_, _NOT_USED_,
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/* UPT */
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CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL, /* NOP */
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CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_0001 | WE_1111 | AMX_COL | LOOP,
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CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,
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CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,
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CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | LOOP,
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CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | LAST,
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_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
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_NOT_USED_, _NOT_USED_,
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/* EXC */
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CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL,
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CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | TODT | LAST,
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/* REG */
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CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1110 | AMX_MAR,
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CS_0001 | BS_1111 | A10_0001 | RAS_0001 | CAS_0001 | WE_0001 | AMX_MAR | TODT | LAST,
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};
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/* ------------------------------------------------------------------------- */
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/*
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* Check Board Identity:
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*
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* Test ETX ID string (ETX_xxx...)
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*
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* Return 1 always.
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*/
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int checkboard(void)
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{
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#if !defined(CONFIG_NETVIA_VERSION) || CONFIG_NETVIA_VERSION == 1
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printf ("NETVIA v1\n");
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#else
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printf ("NETVIA v2+\n");
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#endif
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return (0);
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}
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/* ------------------------------------------------------------------------- */
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/* 0xC8 = 0b11001000 , CAS3, >> 2 = 0b00 11 0 010 */
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#define MAR_SDRAM_INIT 0x000000C8LU
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#define MCR_OP(x) ((unsigned long)((x) & 3) << (31-1))
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#define MCR_OP_MASK MCR_OP(3)
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#define MCR_UM(x) ((unsigned long)((x) & 1) << (31 - 8))
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#define MCR_UM_MASK MCR_UM(1)
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#define MCR_UM_UPMA MCR_UM(0)
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#define MCR_UM_UPMB MCR_UM(1)
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#define MCR_MB(x) ((unsigned long)((x) & 7) << (31 - 18))
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#define MCR_MB_MASK MCR_MB(7)
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#define MCR_MB_CS(x) MCR_MB(x)
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#define MCR_MCLF(x) ((unsigned long)((x) & 15) << (31 - 23))
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#define MCR_MCLF_MASK MCR_MCLF(15)
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phys_size_t initdram(int board_type)
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{
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volatile immap_t *immap = (immap_t *) CFG_IMMR;
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volatile memctl8xx_t *memctl = &immap->im_memctl;
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long int size;
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upmconfig(UPMA, (uint *) sdram_table, sizeof(sdram_table) / sizeof(uint));
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/*
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* Preliminary prescaler for refresh
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*/
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memctl->memc_mptpr = CFG_MPTPR_1BK_8K;
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memctl->memc_mar = MAR_SDRAM_INIT; /* 32-bit address to be output on the address bus if AMX = 0b11 */
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/*
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* Map controller bank 3 to the SDRAM bank at preliminary address.
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*/
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memctl->memc_or3 = CFG_OR3_PRELIM;
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memctl->memc_br3 = CFG_BR3_PRELIM;
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memctl->memc_mamr = CFG_MAMR_9COL & ~MAMR_PTAE; /* no refresh yet */
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udelay(200);
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/* perform SDRAM initialisation sequence */
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memctl->memc_mcr = MCR_OP_RUN | MCR_UM_UPMA | MCR_MB_CS3 | MCR_MCLF(1) | MCR_MAD(0x3C); /* precharge all */
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udelay(1);
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memctl->memc_mcr = MCR_OP_RUN | MCR_UM_UPMA | MCR_MB_CS3 | MCR_MCLF(0) | MCR_MAD(0x30); /* refresh 16 times(0) */
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udelay(1);
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memctl->memc_mcr = MCR_OP_RUN | MCR_UM_UPMA | MCR_MB_CS3 | MCR_MCLF(1) | MCR_MAD(0x3E); /* exception program (write mar) */
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udelay(1);
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memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */
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udelay(1000);
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memctl->memc_mamr = CFG_MAMR_9COL;
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size = SDRAM_MAX_SIZE;
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udelay(10000);
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return (size);
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}
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/* ------------------------------------------------------------------------- */
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int misc_init_r(void)
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{
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#if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2
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last_er_val = 0xffffffff;
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#endif
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return(0);
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}
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/* ------------------------------------------------------------------------- */
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/* GP = general purpose, SP = special purpose (on chip peripheral) */
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/* bits that can have a special purpose or can be configured as inputs/outputs */
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#define PA_GP_INMASK 0
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#define PA_GP_OUTMASK (_BW(5) | _BWR(14, 15))
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#define PA_SP_MASK (_BW(4) | _BWR(6, 13))
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#define PA_ODR_VAL 0
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#define PA_GP_OUTVAL _BW(5)
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#define PA_SP_DIRVAL 0
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#define PB_GP_INMASK _B(28)
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#define PB_GP_OUTMASK (_BR(16, 19) | _BR(26, 27) | _BR(29, 31))
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#define PB_SP_MASK _BR(22, 25)
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#define PB_ODR_VAL 0
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#define PB_GP_OUTVAL (_BR(16, 19) | _BR(26, 27) | _BR(29, 31))
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#define PB_SP_DIRVAL 0
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#if !defined(CONFIG_NETVIA_VERSION) || CONFIG_NETVIA_VERSION == 1
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#define PC_GP_INMASK (_BWR(5, 7) | _BWR(9, 10) | _BW(13))
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#define PC_GP_OUTMASK _BW(12)
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#define PC_SP_MASK (_BW(4) | _BW(8))
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#define PC_SOVAL 0
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#define PC_INTVAL 0
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#define PC_GP_OUTVAL 0
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#define PC_SP_DIRVAL 0
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#define PD_GP_INMASK 0
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#define PD_GP_OUTMASK _BWR(3, 15)
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#define PD_SP_MASK 0
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#define PD_GP_OUTVAL (_BW(3) | _BW(5) | _BW(7) | _BWR(8, 15))
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#define PD_SP_DIRVAL 0
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#elif CONFIG_NETVIA_VERSION >= 2
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#define PC_GP_INMASK (_BW(5) | _BW(7) | _BWR(9, 11) | _BWR(13, 15))
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#define PC_GP_OUTMASK (_BW(6) | _BW(12))
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#define PC_SP_MASK (_BW(4) | _BW(8))
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#define PC_SOVAL 0
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#define PC_INTVAL _BW(7)
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#define PC_GP_OUTVAL (_BW(6) | _BW(12))
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#define PC_SP_DIRVAL 0
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#define PD_GP_INMASK 0
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#define PD_GP_OUTMASK _BWR(3, 15)
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#define PD_SP_MASK 0
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#define PD_GP_OUTVAL (_BW(3) | _BW(5) | _BW(9) | _BW(11))
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#define PD_SP_DIRVAL 0
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#else
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#error Unknown NETVIA board version.
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#endif
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int board_early_init_f(void)
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{
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volatile immap_t *immap = (immap_t *) CFG_IMMR;
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volatile iop8xx_t *ioport = &immap->im_ioport;
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volatile cpm8xx_t *cpm = &immap->im_cpm;
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volatile memctl8xx_t *memctl = &immap->im_memctl;
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/* DSP0 chip select */
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memctl->memc_or4 = ((0xFFFFFFFFLU & ~(DSP_SIZE - 1)) | OR_CSNT_SAM | OR_BI | OR_ACS_DIV2 | OR_SETA | OR_TRLX);
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memctl->memc_br4 = ((DSP0_BASE & BR_BA_MSK) | BR_PS_16 | BR_V);
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/* DSP1 chip select */
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memctl->memc_or5 = ((0xFFFFFFFFLU & ~(DSP_SIZE - 1)) | OR_CSNT_SAM | OR_BI | OR_ACS_DIV2 | OR_SETA | OR_TRLX);
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memctl->memc_br5 = ((DSP1_BASE & BR_BA_MSK) | BR_PS_16 | BR_V);
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/* FPGA chip select */
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memctl->memc_or6 = ((0xFFFFFFFFLU & ~(FPGA_SIZE - 1)) | OR_BI | OR_SCY_1_CLK);
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memctl->memc_br6 = ((FPGA_BASE & BR_BA_MSK) | BR_PS_8 | BR_V);
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#if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2
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/* NAND chip select */
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memctl->memc_or1 = ((0xFFFFFFFFLU & ~(NAND_SIZE - 1)) | OR_CSNT_SAM | OR_BI | OR_SCY_8_CLK | OR_EHTR | OR_TRLX);
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memctl->memc_br1 = ((NAND_BASE & BR_BA_MSK) | BR_PS_8 | BR_V);
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/* kill this chip select */
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memctl->memc_br2 &= ~BR_V; /* invalid */
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/* external reg chip select */
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memctl->memc_or7 = ((0xFFFFFFFFLU & ~(ER_SIZE - 1)) | OR_BI | OR_SCY_4_CLK);
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memctl->memc_br7 = ((ER_BASE & BR_BA_MSK) | BR_PS_32 | BR_V);
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#endif
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ioport->iop_padat = PA_GP_OUTVAL;
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ioport->iop_paodr = PA_ODR_VAL;
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ioport->iop_padir = PA_GP_OUTMASK | PA_SP_DIRVAL;
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ioport->iop_papar = PA_SP_MASK;
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cpm->cp_pbdat = PB_GP_OUTVAL;
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cpm->cp_pbodr = PB_ODR_VAL;
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cpm->cp_pbdir = PB_GP_OUTMASK | PB_SP_DIRVAL;
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cpm->cp_pbpar = PB_SP_MASK;
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ioport->iop_pcdat = PC_GP_OUTVAL;
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ioport->iop_pcdir = PC_GP_OUTMASK | PC_SP_DIRVAL;
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ioport->iop_pcso = PC_SOVAL;
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|
ioport->iop_pcint = PC_INTVAL;
|
|
ioport->iop_pcpar = PC_SP_MASK;
|
|
|
|
ioport->iop_pddat = PD_GP_OUTVAL;
|
|
ioport->iop_pddir = PD_GP_OUTMASK | PD_SP_DIRVAL;
|
|
ioport->iop_pdpar = PD_SP_MASK;
|
|
|
|
#if defined(CONFIG_NETVIA_VERSION) && CONFIG_NETVIA_VERSION >= 2
|
|
/* external register init */
|
|
*(volatile uint *)ER_BASE = 0xFFFFFFFF;
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if defined(CONFIG_CMD_NAND)
|
|
|
|
#include <linux/mtd/nand_legacy.h>
|
|
|
|
extern ulong nand_probe(ulong physadr);
|
|
extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
|
|
|
|
void nand_init(void)
|
|
{
|
|
unsigned long totlen = nand_probe(CFG_NAND_BASE);
|
|
|
|
printf ("%4lu MB\n", totlen >> 20);
|
|
}
|
|
#endif
|
|
|