mirror of
https://review.coreboot.org/flashrom.git
synced 2025-04-27 15:12:36 +02:00
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>
88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/*
|
|
* This file is part of the flashrom project.
|
|
*
|
|
* Copyright (C) 2010 Andrew Morgan <ziltro@ziltro.com>
|
|
*
|
|
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#if defined(__i386__) || defined(__x86_64__)
|
|
|
|
#include <stdlib.h>
|
|
#include "flash.h"
|
|
|
|
#define PCI_VENDOR_ID_NATSEMI 0x100b
|
|
|
|
#define BOOT_ROM_ADDR 0x50
|
|
#define BOOT_ROM_DATA 0x54
|
|
|
|
const struct pcidev_status nics_natsemi[] = {
|
|
{0x100b, 0x0020, NT, "National Semiconductor", "DP83815/DP83816"},
|
|
{0x100b, 0x0022, NT, "National Semiconductor", "DP83820"},
|
|
{},
|
|
};
|
|
|
|
int nicnatsemi_init(void)
|
|
{
|
|
get_io_perms();
|
|
|
|
io_base_addr = pcidev_init(PCI_VENDOR_ID_NATSEMI, PCI_BASE_ADDRESS_0,
|
|
nics_natsemi, programmer_param);
|
|
|
|
buses_supported = CHIP_BUSTYPE_PARALLEL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int nicnatsemi_shutdown(void)
|
|
{
|
|
free(programmer_param);
|
|
pci_cleanup(pacc);
|
|
release_io_perms();
|
|
return 0;
|
|
}
|
|
|
|
void nicnatsemi_chip_writeb(uint8_t val, chipaddr addr)
|
|
{
|
|
OUTL((uint32_t)addr & 0x0000FFFF, io_base_addr + BOOT_ROM_ADDR);
|
|
/*
|
|
* The datasheet requires 32 bit accesses to this register, but it seems
|
|
* that requirement might only apply if the register is memory mapped.
|
|
* Bit 8-31 of this register are apparently don't care, and if this
|
|
* register is I/O port mapped 8 bit accesses to the lowest byte of the
|
|
* register seem to work fine. Due to that, we ignore the advice in the
|
|
* data sheet.
|
|
*/
|
|
OUTB(val, io_base_addr + BOOT_ROM_DATA);
|
|
}
|
|
|
|
uint8_t nicnatsemi_chip_readb(const chipaddr addr)
|
|
{
|
|
OUTL(((uint32_t)addr & 0x0000FFFF), io_base_addr + BOOT_ROM_ADDR);
|
|
/*
|
|
* The datasheet requires 32 bit accesses to this register, but it seems
|
|
* that requirement might only apply if the register is memory mapped.
|
|
* Bit 8-31 of this register are apparently don't care, and if this
|
|
* register is I/O port mapped 8 bit accesses to the lowest byte of the
|
|
* register seem to work fine. Due to that, we ignore the advice in the
|
|
* data sheet.
|
|
*/
|
|
return INB(io_base_addr + BOOT_ROM_DATA);
|
|
}
|
|
|
|
#else
|
|
#error PCI port I/O access is not supported on this architecture yet.
|
|
#endif
|