1
0
mirror of https://review.coreboot.org/flashrom.git synced 2025-04-26 22:52:34 +02:00
flashrom/atahpt.c
Carl-Daniel Hailfinger a2faddf7d3 Decouple BAR reading from pci device init, handle errors gracefully
Pcidev_init() now returns struct pci_device * instead of a BAR stored in
PCI config space. This allows for real error checking instead of having
exit(1) everywhere in pcidev.c.
Thanks to Niklas Söderlund for coming up with the original error
handling patch which was slightly modified and folded into this patch.
Move the declaration of struct pci_device in programmer.h before the
first user.

Corresponding to flashrom svn r1644.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
2013-01-05 23:52:45 +00:00

100 lines
2.8 KiB
C

/*
* This file is part of the flashrom project.
*
* Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
*
* 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 <string.h>
#include "flash.h"
#include "programmer.h"
#include "hwaccess.h"
#define BIOS_ROM_ADDR 0x90
#define BIOS_ROM_DATA 0x94
#define REG_FLASH_ACCESS 0x58
#define PCI_VENDOR_ID_HPT 0x1103
const struct dev_entry ata_hpt[] = {
{0x1103, 0x0004, NT, "Highpoint", "HPT366/368/370/370A/372/372N"},
{0x1103, 0x0005, NT, "Highpoint", "HPT372A/372N"},
{0x1103, 0x0006, NT, "Highpoint", "HPT302/302N"},
{0},
};
static void atahpt_chip_writeb(const struct flashctx *flash, uint8_t val,
chipaddr addr);
static uint8_t atahpt_chip_readb(const struct flashctx *flash,
const chipaddr addr);
static const struct par_programmer par_programmer_atahpt = {
.chip_readb = atahpt_chip_readb,
.chip_readw = fallback_chip_readw,
.chip_readl = fallback_chip_readl,
.chip_readn = fallback_chip_readn,
.chip_writeb = atahpt_chip_writeb,
.chip_writew = fallback_chip_writew,
.chip_writel = fallback_chip_writel,
.chip_writen = fallback_chip_writen,
};
int atahpt_init(void)
{
struct pci_dev *dev = NULL;
uint32_t reg32;
if (rget_io_perms())
return 1;
dev = pcidev_init(ata_hpt, PCI_BASE_ADDRESS_4);
if (!dev)
return 1;
io_base_addr = pcidev_readbar(dev, PCI_BASE_ADDRESS_4);
/* Enable flash access. */
reg32 = pci_read_long(dev, REG_FLASH_ACCESS);
reg32 |= (1 << 24);
rpci_write_long(dev, REG_FLASH_ACCESS, reg32);
register_par_programmer(&par_programmer_atahpt, BUS_PARALLEL);
return 0;
}
static void atahpt_chip_writeb(const struct flashctx *flash, uint8_t val,
chipaddr addr)
{
OUTL((uint32_t)addr, io_base_addr + BIOS_ROM_ADDR);
OUTB(val, io_base_addr + BIOS_ROM_DATA);
}
static uint8_t atahpt_chip_readb(const struct flashctx *flash,
const chipaddr addr)
{
OUTL((uint32_t)addr, io_base_addr + BIOS_ROM_ADDR);
return INB(io_base_addr + BIOS_ROM_DATA);
}
#else
#error PCI port I/O access is not supported on this architecture yet.
#endif