mirror of
https://review.coreboot.org/flashrom.git
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ad3cc55e13
Constify variables where possible. Initialize programmer-related variables explicitly in programmer_init to allow running programmer_init from a clean state after programmer_shutdown. Prohibit registering programmer shutdown functions before init or after shutdown. Kill some dead code. Rename global variables with namespace-polluting names. Use a previously unused locking helper function in sst49lfxxxc.c. This is needed for libflashrom. Effects on the binary size of flashrom are minimal (300 bytes shrinkage), but the data section shrinks by 4384 bytes, and that's a good thing if flashrom is operating in constrained envionments. Corresponding to flashrom svn r1068. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
120 lines
3.8 KiB
C
120 lines
3.8 KiB
C
/*
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* This file is part of the flashrom project.
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*
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* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#if defined(__i386__) || defined(__x86_64__)
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#include <stdlib.h>
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#include "flash.h"
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#define BIOS_ROM_ADDR 0x04
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#define BIOS_ROM_DATA 0x08
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#define INT_STATUS 0x0e
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#define INTERNAL_CONFIG 0x00
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#define SELECT_REG_WINDOW 0x800
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#define PCI_VENDOR_ID_3COM 0x10b7
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static uint32_t internal_conf;
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static uint16_t id;
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const struct pcidev_status nics_3com[] = {
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/* 3C90xB */
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{0x10b7, 0x9055, OK, "3COM", "3C90xB: PCI 10/100 Mbps; shared 10BASE-T/100BASE-TX"},
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{0x10b7, 0x9001, NT, "3COM", "3C90xB: PCI 10/100 Mbps; shared 10BASE-T/100BASE-T4" },
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{0x10b7, 0x9004, OK, "3COM", "3C90xB: PCI 10BASE-T (TPO)" },
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{0x10b7, 0x9005, NT, "3COM", "3C90xB: PCI 10BASE-T/10BASE2/AUI (COMBO)" },
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{0x10b7, 0x9006, NT, "3COM", "3C90xB: PCI 10BASE-T/10BASE2 (TPC)" },
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{0x10b7, 0x900a, NT, "3COM", "3C90xB: PCI 10BASE-FL" },
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{0x10b7, 0x905a, NT, "3COM", "3C90xB: PCI 10BASE-FX" },
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{0x10b7, 0x9058, OK, "3COM", "3C905B: Cyclone 10/100/BNC" },
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/* 3C905C */
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{0x10b7, 0x9200, OK, "3COM", "3C905C: EtherLink 10/100 PCI (TX)" },
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/* 3C980C */
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{0x10b7, 0x9805, NT, "3COM", "3C980C: EtherLink Server 10/100 PCI (TX)" },
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{},
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};
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int nic3com_init(void)
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{
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get_io_perms();
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io_base_addr = pcidev_init(PCI_VENDOR_ID_3COM, PCI_BASE_ADDRESS_0,
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nics_3com, programmer_param);
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id = pcidev_dev->device_id;
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/* 3COM 3C90xB cards need a special fixup. */
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if (id == 0x9055 || id == 0x9001 || id == 0x9004 || id == 0x9005
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|| id == 0x9006 || id == 0x900a || id == 0x905a || id == 0x9058) {
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/* Select register window 3 and save the receiver status. */
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OUTW(SELECT_REG_WINDOW + 3, io_base_addr + INT_STATUS);
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internal_conf = INL(io_base_addr + INTERNAL_CONFIG);
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/* Set receiver type to MII for full BIOS ROM access. */
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OUTL((internal_conf & 0xf00fffff) | 0x00600000, io_base_addr);
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}
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/*
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* The lowest 16 bytes of the I/O mapped register space of (most) 3COM
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* cards form a 'register window' into one of multiple (usually 8)
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* register banks. For 3C90xB/3C90xC we need register window/bank 0.
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*/
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OUTW(SELECT_REG_WINDOW + 0, io_base_addr + INT_STATUS);
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buses_supported = CHIP_BUSTYPE_PARALLEL;
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max_rom_decode.parallel = 128 * 1024;
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return 0;
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}
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int nic3com_shutdown(void)
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{
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/* 3COM 3C90xB cards need a special fixup. */
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if (id == 0x9055 || id == 0x9001 || id == 0x9004 || id == 0x9005
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|| id == 0x9006 || id == 0x900a || id == 0x905a || id == 0x9058) {
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/* Select register window 3 and restore the receiver status. */
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OUTW(SELECT_REG_WINDOW + 3, io_base_addr + INT_STATUS);
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OUTL(internal_conf, io_base_addr + INTERNAL_CONFIG);
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}
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free(programmer_param);
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pci_cleanup(pacc);
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release_io_perms();
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return 0;
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}
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void nic3com_chip_writeb(uint8_t val, chipaddr addr)
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{
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OUTL((uint32_t)addr, io_base_addr + BIOS_ROM_ADDR);
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OUTB(val, io_base_addr + BIOS_ROM_DATA);
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}
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uint8_t nic3com_chip_readb(const chipaddr addr)
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{
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OUTL((uint32_t)addr, io_base_addr + BIOS_ROM_ADDR);
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return INB(io_base_addr + BIOS_ROM_DATA);
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}
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#else
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#error PCI port I/O access is not supported on this architecture yet.
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#endif
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