/* * flash rom utility: enable flash writes (board specific) * * Copyright (C) 2005-2007 coresystems GmbH * Copyright (C) 2006 Uwe Hermann * Copyright (C) 2007 Luc Verhaegen * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 * */ /* * Contains the board specific flash enables. */ #include #include #include #include #include "flash.h" #include "debug.h" /* * Helper functions for many Winbond superIOs of the w836xx range. */ #define W836_INDEX 0x2E #define W836_DATA 0x2F /* Enter extended functions */ static void w836xx_ext_enter(void) { outb(0x87, W836_INDEX); outb(0x87, W836_INDEX); } /* Leave extended functions */ static void w836xx_ext_leave(void) { outb(0xAA, W836_INDEX); } /* General functions for read/writing WB SuperIOs */ static unsigned char wbsio_read(unsigned char index) { outb(index, W836_INDEX); return inb(W836_DATA); } static void wbsio_write(unsigned char index, unsigned char data) { outb(index, W836_INDEX); outb(data, W836_DATA); } static void wbsio_mask(unsigned char index, unsigned char data, unsigned char mask) { unsigned char tmp; outb(index, W836_INDEX); tmp = inb(W836_DATA) & ~mask; outb(tmp | (data & mask), W836_DATA); } /* * WinBond w83627hf: raise GPIO24. * * Suited for: * * Agami Aruma * * IWILL DK8-HTX */ static int w83627hf_gpio24_raise(const char *name) { w836xx_ext_enter(); /* Is this the w83627hf? */ if (wbsio_read(0x20) != 0x52) { /* SIO device ID register */ fprintf(stderr, "\nERROR: %s: W83627HF: Wrong ID: 0x%02X.\n", name, wbsio_read(0x20)); w836xx_ext_leave(); return -1; } /* PIN89S: WDTO/GP24 multiplex -> GPIO24 */ wbsio_mask(0x2B, 0x10, 0x10); wbsio_write(0x07, 0x08); /* Select logical device 8: GPIO port 2 */ wbsio_mask(0x30, 0x01, 0x01); /* Activate logical device. */ wbsio_mask(0xF0, 0x00, 0x10); /* GPIO24 -> output */ wbsio_mask(0xF2, 0x00, 0x10); /* Clear GPIO24 inversion */ wbsio_mask(0xF1, 0x10, 0x10); /* Raise GPIO24 */ w836xx_ext_leave(); return 0; } /* * Suited for VIAs EPIA M and MII, and maybe other CLE266 based EPIAs. * * We don't need to do this when using linuxbios, GPIO15 is never lowered there. */ static int board_via_epia_m(const char *name) { struct pci_dev *dev; unsigned int base; uint8_t val; dev = pci_dev_find(0x1106, 0x3177); /* VT8235 ISA bridge */ if (!dev) { fprintf(stderr, "\nERROR: VT8235 ISA Bridge not found.\n"); return -1; } /* GPIO12-15 -> output */ val = pci_read_byte(dev, 0xE4); val |= 0x10; pci_write_byte(dev, 0xE4, val); /* Get Power Management IO address. */ base = pci_read_word(dev, 0x88) & 0xFF80; /* enable GPIO15 which is connected to write protect. */ val = inb(base + 0x4D); val |= 0x80; outb(val, base + 0x4D); return 0; } /* * Suited for Asus A7V8X-MX SE and A7V400-MX. * */ static int board_asus_a7v8x_mx(const char *name) { struct pci_dev *dev; uint8_t val; dev = pci_dev_find(0x1106, 0x3177); /* VT8235 ISA bridge */ if (!dev) { fprintf(stderr, "\nERROR: VT8235 ISA Bridge not found.\n"); return -1; } /* This bit is marked reserved actually */ val = pci_read_byte(dev, 0x59); val &= 0x7F; pci_write_byte(dev, 0x59, val); /* Raise ROM MEMW# line on Winbond w83697 SuperIO */ w836xx_ext_enter(); if (!(wbsio_read(0x24) & 0x02)) /* flash rom enabled? */ wbsio_mask(0x24, 0x08, 0x08); /* enable MEMW# */ w836xx_ext_leave(); return 0; } /* * We use 2 sets of ids here, you're free to choose which is which. This * to provide a very high degree of certainty when matching a board on * the basis of Subsystem/card ids. As not every vendor handles * subsystem/card ids in a sane manner. * * Keep the second set nulled if it should be ignored. * */ struct board_pciid_enable { /* Any device, but make it sensible, like the isa bridge. */ uint16_t first_vendor; uint16_t first_device; uint16_t first_card_vendor; uint16_t first_card_device; /* Any device, but make it sensible, like * the host bridge. May be NULL */ uint16_t second_vendor; uint16_t second_device; uint16_t second_card_vendor; uint16_t second_card_device; /* From linuxbios table */ char *lb_vendor; char *lb_part; char *name; int (*enable) (const char *name); }; struct board_pciid_enable board_pciid_enables[] = { {0x1022, 0x7468, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, "iwill", "dk8_htx", "IWILL DK8-HTX", w83627hf_gpio24_raise}, {0x1022, 0x746B, 0x1022, 0x36C0, 0x0000, 0x0000, 0x0000, 0x0000, "AGAMI", "ARUMA", "agami Aruma", w83627hf_gpio24_raise}, {0x1106, 0x3177, 0x1106, 0xAA01, 0x1106, 0x3123, 0x1106, 0xAA01, NULL, NULL, "VIA EPIA M/MII/...", board_via_epia_m}, {0x1106, 0x3177, 0x1043, 0x80A1, 0x1106, 0x3205, 0x1043, 0x8118, NULL, NULL, "ASUS A7V8-MX SE", board_asus_a7v8x_mx}, {0, 0, 0, 0, 0, 0, 0, 0, NULL, NULL} /* Keep this */ }; /* * Match boards on linuxbios table gathered vendor and part name. * Require main pci-ids to match too as extra safety. * */ static struct board_pciid_enable *board_match_linuxbios_name(char *vendor, char *part) { struct board_pciid_enable *board = board_pciid_enables; for (; board->name; board++) { if (!board->lb_vendor || strcmp(board->lb_vendor, vendor)) continue; if (!board->lb_part || strcmp(board->lb_part, part)) continue; if (!pci_dev_find(board->first_vendor, board->first_device)) continue; if (board->second_vendor && !pci_dev_find(board->second_vendor, board->second_device)) continue; return board; } return NULL; } /* * Match boards on pci ids and subsystem ids. * Second set of ids can be main only or missing completely. */ static struct board_pciid_enable *board_match_pci_card_ids(void) { struct board_pciid_enable *board = board_pciid_enables; for (; board->name; board++) { if (!board->first_card_vendor || !board->first_card_device) continue; if (!pci_card_find(board->first_vendor, board->first_device, board->first_card_vendor, board->first_card_device)) continue; if (board->second_vendor) { if (board->second_card_vendor) { if (!pci_card_find(board->second_vendor, board->second_device, board->second_card_vendor, board->second_card_device)) continue; } else { if (!pci_dev_find(board->second_vendor, board->second_device)) continue; } } return board; } return NULL; } /* * */ int board_flash_enable(char *vendor, char *part) { struct board_pciid_enable *board = NULL; int ret = 0; if (vendor && part) board = board_match_linuxbios_name(vendor, part); if (!board) board = board_match_pci_card_ids(); if (board) { printf("Found board \"%s\": Enabling flash write... ", board->name); ret = board->enable(board->name); if (ret) printf("Failed!\n"); else printf("OK.\n"); } return ret; }