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/*
* 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.
*/
#include <stdlib.h>
#include <string.h>
#include "flash.h"
#include "programmer.h"
#include "hwaccess_x86_io.h"
#include "platform/pci.h"
#define BIOS_ROM_ADDR 0x90
#define BIOS_ROM_DATA 0x94
#define REG_FLASH_ACCESS 0x58
#define BIT_FLASH_ACCESS BIT(24)
#define PCI_VENDOR_ID_HPT 0x1103
struct atahpt_data {
struct pci_dev *dev;
uint32_t io_base_addr;
uint32_t flash_access;
};
static 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)
{
struct atahpt_data *data = flash->mst->par.data;
OUTL((uint32_t)addr, data->io_base_addr + BIOS_ROM_ADDR);
OUTB(val, data->io_base_addr + BIOS_ROM_DATA);
}
static uint8_t atahpt_chip_readb(const struct flashctx *flash,
const chipaddr addr)
{
struct atahpt_data *data = flash->mst->par.data;
OUTL((uint32_t)addr, data->io_base_addr + BIOS_ROM_ADDR);
return INB(data->io_base_addr + BIOS_ROM_DATA);
}
static int atahpt_shutdown(void *par_data)
{
struct atahpt_data *data = par_data;
/* Restore original flash access state. */
pci_write_long(data->dev, REG_FLASH_ACCESS, data->flash_access);
free(par_data);
return 0;
}
static const struct par_master par_master_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,
.shutdown = atahpt_shutdown,
};
static int atahpt_init(void)
{
struct pci_dev *dev = NULL;
uint32_t io_base_addr;
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);
if (!io_base_addr)
return 1;
struct atahpt_data *data = calloc(1, sizeof(*data));
if (!data) {
msg_perr("Unable to allocate space for PAR master data\n");
return 1;
}
data->dev = dev;
data->io_base_addr = io_base_addr;
/* Enable flash access. */
data->flash_access = pci_read_long(dev, REG_FLASH_ACCESS);
pci_write_long(dev, REG_FLASH_ACCESS, data->flash_access | BIT_FLASH_ACCESS);
return register_par_master(&par_master_atahpt, BUS_PARALLEL, data);
}
const struct programmer_entry programmer_atahpt = {
.name = "atahpt",
.type = PCI,
.devs.dev = ata_hpt,
.init = atahpt_init,
.map_flash_region = fallback_map,
.unmap_flash_region = fallback_unmap,
.delay = internal_delay,
};
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