mirror of
https://review.coreboot.org/flashrom.git
synced 2025-04-26 22:52:34 +02:00
67d5015617
Drop the explicit need to specify the default 'fallback_{un}map'
callback function pointer from the 'programmer_entry' struct.
This is a reasonable default for every other driver in the tree
with only a select few exceptions [atavia, serprog, dummyflasher
and internal].
Thus this simplifies driver development and paves way
to remove the 'programmer' global handle.
Change-Id: I5ea7bd68f7ae2cd4af9902ef07255ab6ce0bfdb3
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/67404
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
115 lines
3.1 KiB
C
115 lines
3.1 KiB
C
/*
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* This file is part of the flashrom project.
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*
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* Copyright (C) 2011 Carl-Daniel Hailfinger
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* Copyright (C) 2012 Kyösti Mälkki <kyosti.malkki@gmail.com>
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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; version 2 of the License.
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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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#include <stdlib.h>
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#include "flash.h"
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#include "programmer.h"
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#include "hwaccess_physmap.h"
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#include "platform/pci.h"
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struct it8212_data {
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struct pci_dev *dev;
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uint8_t *bar;
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uint32_t decode_access;
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};
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#define PCI_VENDOR_ID_ITE 0x1283
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static const struct dev_entry devs_it8212[] = {
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{PCI_VENDOR_ID_ITE, 0x8212, NT, "ITE", "8212F PATA RAID"},
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{0},
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};
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#define IT8212_MEMMAP_SIZE (128 * 1024)
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#define IT8212_MEMMAP_MASK (IT8212_MEMMAP_SIZE - 1)
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static void it8212_chip_writeb(const struct flashctx *flash, uint8_t val, chipaddr addr)
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{
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const struct it8212_data *data = flash->mst->par.data;
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pci_mmio_writeb(val, data->bar + (addr & IT8212_MEMMAP_MASK));
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}
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static uint8_t it8212_chip_readb(const struct flashctx *flash, const chipaddr addr)
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{
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const struct it8212_data *data = flash->mst->par.data;
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return pci_mmio_readb(data->bar + (addr & IT8212_MEMMAP_MASK));
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}
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static int it8212_shutdown(void *par_data)
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{
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struct it8212_data *data = par_data;
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/* Restore ROM BAR decode state. */
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pci_write_long(data->dev, PCI_ROM_ADDRESS, data->decode_access);
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free(par_data);
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return 0;
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}
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static const struct par_master par_master_it8212 = {
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.chip_readb = it8212_chip_readb,
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.chip_readw = fallback_chip_readw,
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.chip_readl = fallback_chip_readl,
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.chip_readn = fallback_chip_readn,
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.chip_writeb = it8212_chip_writeb,
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.chip_writew = fallback_chip_writew,
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.chip_writel = fallback_chip_writel,
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.chip_writen = fallback_chip_writen,
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.shutdown = it8212_shutdown,
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};
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static int it8212_init(const struct programmer_cfg *cfg)
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{
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uint8_t *bar;
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struct pci_dev *dev = pcidev_init(cfg, devs_it8212, PCI_ROM_ADDRESS);
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if (!dev)
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return 1;
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/* Bit 0 is address decode enable, 17-31 the base address, everything else reserved/zero. */
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uint32_t io_base_addr = pcidev_readbar(dev, PCI_ROM_ADDRESS) & 0xFFFFFFFE;
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if (!io_base_addr)
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return 1;
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bar = rphysmap("IT8212F flash", io_base_addr, IT8212_MEMMAP_SIZE);
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if (bar == ERROR_PTR)
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return 1;
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struct it8212_data *data = calloc(1, sizeof(*data));
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if (!data) {
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msg_perr("Unable to allocate space for PAR master data\n");
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return 1;
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}
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data->dev = dev;
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data->bar = bar;
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/* Enable ROM BAR decoding. */
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data->decode_access = pci_read_long(dev, PCI_ROM_ADDRESS);
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pci_write_long(dev, PCI_ROM_ADDRESS, io_base_addr | 0x01);
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max_rom_decode.parallel = IT8212_MEMMAP_SIZE;
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return register_par_master(&par_master_it8212, BUS_PARALLEL, data);
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}
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const struct programmer_entry programmer_it8212 = {
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.name = "it8212",
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.type = PCI,
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.devs.dev = devs_it8212,
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.init = it8212_init,
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};
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