diff options
Diffstat (limited to 'it8212.c')
-rw-r--r-- | it8212.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/it8212.c b/it8212.c new file mode 100644 index 0000000..f68121a --- /dev/null +++ b/it8212.c @@ -0,0 +1,86 @@ +/* + * This file is part of the flashrom project. + * + * Copyright (C) 2011 Carl-Daniel Hailfinger + * Copyright (C) 2012 Kyösti Mälkki <kyosti.malkki@gmail.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; version 2 of the License. + * + * 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 + */ + +#include <stdlib.h> +#include "flash.h" +#include "programmer.h" +#include "hwaccess.h" + +static uint8_t *it8212_bar = NULL; + +#define PCI_VENDOR_ID_ITE 0x1283 + +const struct dev_entry devs_it8212[] = { + {PCI_VENDOR_ID_ITE, 0x8212, OK, "ITE", "8212F PATA RAID"}, + + {}, +}; + +#define IT8212_MEMMAP_SIZE (128 * 1024) +#define IT8212_MEMMAP_MASK (IT8212_MEMMAP_SIZE - 1) + +static void it8212_chip_writeb(const struct flashctx *flash, uint8_t val, chipaddr addr); +static uint8_t it8212_chip_readb(const struct flashctx *flash, const chipaddr addr); +static const struct par_programmer par_programmer_it8212 = { + .chip_readb = it8212_chip_readb, + .chip_readw = fallback_chip_readw, + .chip_readl = fallback_chip_readl, + .chip_readn = fallback_chip_readn, + .chip_writeb = it8212_chip_writeb, + .chip_writew = fallback_chip_writew, + .chip_writel = fallback_chip_writel, + .chip_writen = fallback_chip_writen, +}; + +int it8212_init(void) +{ + if (rget_io_perms()) + return 1; + + struct pci_dev *dev = pcidev_init(devs_it8212, PCI_ROM_ADDRESS); + if (!dev) + return 1; + + /* Bit 0 is address decode enable, 17-31 the base address, everything else reserved/zero. */ + io_base_addr = pcidev_readbar(dev, PCI_ROM_ADDRESS) & 0xFFFFFFFE; + if (!io_base_addr) + return 1; + + it8212_bar = rphysmap("IT8212F flash", io_base_addr, IT8212_MEMMAP_SIZE); + if (it8212_bar == ERROR_PTR) + return 1; + + /* Restore ROM BAR decode state automatically at shutdown. */ + rpci_write_long(dev, PCI_ROM_ADDRESS, io_base_addr | 0x01); + + max_rom_decode.parallel = IT8212_MEMMAP_SIZE; + register_par_programmer(&par_programmer_it8212, BUS_PARALLEL); + return 0; +} + +static void it8212_chip_writeb(const struct flashctx *flash, uint8_t val, chipaddr addr) +{ + pci_mmio_writeb(val, it8212_bar + (addr & IT8212_MEMMAP_MASK)); +} + +static uint8_t it8212_chip_readb(const struct flashctx *flash, const chipaddr addr) +{ + return pci_mmio_readb(it8212_bar + (addr & IT8212_MEMMAP_MASK)); +} |