6602070955
now-supported Broadcom HT-1000 chipset (trivial). Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Uwe Hermann <uwe@hermann-uwe.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2713 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
402 lines
8.6 KiB
C
402 lines
8.6 KiB
C
/*
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* flash rom utility: enable flash writes (board specific)
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*
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* Copyright (C) 2005-2007 coresystems GmbH <stepan@coresystems.de>
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* Copyright (C) 2006 Uwe Hermann <uwe@hermann-uwe.de>
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* Copyright (C) 2007 Luc Verhaegen <libv@skynet.be>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2
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*
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*/
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/*
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* Contains the board specific flash enables.
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*/
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#include <stdio.h>
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#include <pci/pci.h>
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#include <stdint.h>
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#include <string.h>
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#include "flash.h"
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#include "debug.h"
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/*
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* Helper functions for many Winbond superIOs of the w836xx range.
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*/
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#define W836_INDEX 0x2E
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#define W836_DATA 0x2F
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/* Enter extended functions */
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static void w836xx_ext_enter(void)
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{
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outb(0x87, W836_INDEX);
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outb(0x87, W836_INDEX);
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}
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/* Leave extended functions */
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static void w836xx_ext_leave(void)
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{
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outb(0xAA, W836_INDEX);
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}
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/* General functions for read/writing WB SuperIOs */
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static unsigned char wbsio_read(unsigned char index)
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{
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outb(index, W836_INDEX);
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return inb(W836_DATA);
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}
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static void wbsio_write(unsigned char index, unsigned char data)
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{
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outb(index, W836_INDEX);
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outb(data, W836_DATA);
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}
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static void
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wbsio_mask(unsigned char index, unsigned char data, unsigned char mask)
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{
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unsigned char tmp;
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outb(index, W836_INDEX);
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tmp = inb(W836_DATA) & ~mask;
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outb(tmp | (data & mask), W836_DATA);
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}
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/*
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* WinBond w83627hf: raise GPIO24.
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*
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* Suited for:
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* * Agami Aruma
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* * IWILL DK8-HTX
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*/
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static int w83627hf_gpio24_raise(const char *name)
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{
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w836xx_ext_enter();
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/* Is this the w83627hf? */
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if (wbsio_read(0x20) != 0x52) { /* SIO device ID register */
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fprintf(stderr, "\nERROR: %s: W83627HF: Wrong ID: 0x%02X.\n",
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name, wbsio_read(0x20));
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w836xx_ext_leave();
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return -1;
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}
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/* PIN89S: WDTO/GP24 multiplex -> GPIO24 */
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wbsio_mask(0x2B, 0x10, 0x10);
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wbsio_write(0x07, 0x08); /* Select logical device 8: GPIO port 2 */
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wbsio_mask(0x30, 0x01, 0x01); /* Activate logical device. */
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wbsio_mask(0xF0, 0x00, 0x10); /* GPIO24 -> output */
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wbsio_mask(0xF2, 0x00, 0x10); /* Clear GPIO24 inversion */
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wbsio_mask(0xF1, 0x10, 0x10); /* Raise GPIO24 */
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w836xx_ext_leave();
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return 0;
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}
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/*
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* Suited for VIAs EPIA M and MII, and maybe other CLE266 based EPIAs.
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*
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* We don't need to do this when using linuxbios, GPIO15 is never lowered there.
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*/
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static int board_via_epia_m(const char *name)
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{
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struct pci_dev *dev;
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unsigned int base;
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uint8_t val;
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dev = pci_dev_find(0x1106, 0x3177); /* VT8235 ISA bridge */
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if (!dev) {
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fprintf(stderr, "\nERROR: VT8235 ISA Bridge not found.\n");
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return -1;
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}
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/* GPIO12-15 -> output */
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val = pci_read_byte(dev, 0xE4);
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val |= 0x10;
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pci_write_byte(dev, 0xE4, val);
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/* Get Power Management IO address. */
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base = pci_read_word(dev, 0x88) & 0xFF80;
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/* enable GPIO15 which is connected to write protect. */
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val = inb(base + 0x4D);
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val |= 0x80;
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outb(val, base + 0x4D);
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return 0;
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}
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/*
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* Suited for ASUS A7V8X-MX SE and A7V400-MX.
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*
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*/
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static int board_asus_a7v8x_mx(const char *name)
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{
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struct pci_dev *dev;
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uint8_t val;
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dev = pci_dev_find(0x1106, 0x3177); /* VT8235 ISA bridge */
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if (!dev) {
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fprintf(stderr, "\nERROR: VT8235 ISA Bridge not found.\n");
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return -1;
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}
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/* This bit is marked reserved actually */
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val = pci_read_byte(dev, 0x59);
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val &= 0x7F;
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pci_write_byte(dev, 0x59, val);
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/* Raise ROM MEMW# line on Winbond w83697 SuperIO */
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w836xx_ext_enter();
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if (!(wbsio_read(0x24) & 0x02)) /* flash rom enabled? */
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wbsio_mask(0x24, 0x08, 0x08); /* enable MEMW# */
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w836xx_ext_leave();
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return 0;
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}
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/*
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* Suited for ASUS P5A.
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*
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* This is rather nasty code, but there's no way to do this cleanly.
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* We're basically talking to some unknown device on SMBus, my guess
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* is that it is the Winbond W83781D that lives near the DIP BIOS.
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*/
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static int board_asus_p5a(const char *name)
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{
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uint8_t tmp;
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int i;
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#define ASUSP5A_LOOP 5000
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outb(0x00, 0xE807);
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outb(0xEF, 0xE803);
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outb(0xFF, 0xE800);
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for (i = 0; i < ASUSP5A_LOOP; i++) {
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outb(0xE1, 0xFF);
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if (inb(0xE800) & 0x04)
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break;
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}
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if (i == ASUSP5A_LOOP) {
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printf("%s: Unable to contact device.\n", name);
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return -1;
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}
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outb(0x20, 0xE801);
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outb(0x20, 0xE1);
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outb(0xFF, 0xE802);
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for (i = 0; i < ASUSP5A_LOOP; i++) {
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tmp = inb(0xE800);
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if (tmp & 0x70)
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break;
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}
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if ((i == ASUSP5A_LOOP) || !(tmp & 0x10)) {
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printf("%s: failed to read device.\n", name);
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return -1;
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}
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tmp = inb(0xE804);
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tmp &= ~0x02;
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outb(0x00, 0xE807);
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outb(0xEE, 0xE803);
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outb(tmp, 0xE804);
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outb(0xFF, 0xE800);
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outb(0xE1, 0xFF);
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outb(0x20, 0xE801);
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outb(0x20, 0xE1);
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outb(0xFF, 0xE802);
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for (i = 0; i < ASUSP5A_LOOP; i++) {
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tmp = inb(0xE800);
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if (tmp & 0x70)
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break;
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}
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if ((i == ASUSP5A_LOOP) || !(tmp & 0x10)) {
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printf("%s: failed to write to device.\n", name);
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return -1;
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}
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return 0;
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}
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static int board_ibm_x3455(const char *name)
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{
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uint8_t byte;
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/* Set GPIO lines in the Broadcom HT-1000 southbridge. */
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outb(0x45, 0xcd6);
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byte = inb(0xcd7);
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outb(byte | 0x20, 0xcd7);
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return 0;
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}
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/*
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* We use 2 sets of ids here, you're free to choose which is which. This
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* to provide a very high degree of certainty when matching a board on
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* the basis of Subsystem/card ids. As not every vendor handles
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* subsystem/card ids in a sane manner.
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*
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* Keep the second set nulled if it should be ignored.
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*
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*/
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struct board_pciid_enable {
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/* Any device, but make it sensible, like the isa bridge. */
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uint16_t first_vendor;
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uint16_t first_device;
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uint16_t first_card_vendor;
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uint16_t first_card_device;
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/* Any device, but make it sensible, like
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* the host bridge. May be NULL
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*/
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uint16_t second_vendor;
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uint16_t second_device;
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uint16_t second_card_vendor;
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uint16_t second_card_device;
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/* From linuxbios table */
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char *lb_vendor;
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char *lb_part;
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char *name;
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int (*enable) (const char *name);
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};
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struct board_pciid_enable board_pciid_enables[] = {
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{0x1022, 0x7468, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
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"iwill", "dk8_htx", "IWILL DK8-HTX", w83627hf_gpio24_raise},
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{0x1022, 0x746B, 0x1022, 0x36C0, 0x0000, 0x0000, 0x0000, 0x0000,
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"AGAMI", "ARUMA", "agami Aruma", w83627hf_gpio24_raise},
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{0x1106, 0x3177, 0x1106, 0xAA01, 0x1106, 0x3123, 0x1106, 0xAA01,
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NULL, NULL, "VIA EPIA M/MII/...", board_via_epia_m},
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{0x1106, 0x3177, 0x1043, 0x80A1, 0x1106, 0x3205, 0x1043, 0x8118,
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NULL, NULL, "ASUS A7V8-MX SE", board_asus_a7v8x_mx},
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{0x10B9, 0x1541, 0x0000, 0x0000, 0x10B9, 0x1533, 0x0000, 0x0000,
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"asus", "p5a", "ASUS P5A", board_asus_p5a},
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{0x1166, 0x0205, 0x1014, 0x0347, 0x0000, 0x0000, 0x0000, 0x0000,
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"ibm", "x3455", "IBM x3455", board_ibm_x3455},
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{0, 0, 0, 0, 0, 0, 0, 0, NULL, NULL} /* Keep this */
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};
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/*
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* Match boards on linuxbios table gathered vendor and part name.
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* Require main pci-ids to match too as extra safety.
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*
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*/
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static struct board_pciid_enable *board_match_linuxbios_name(char *vendor,
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char *part)
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{
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struct board_pciid_enable *board = board_pciid_enables;
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for (; board->name; board++) {
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if (!board->lb_vendor || strcmp(board->lb_vendor, vendor))
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continue;
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if (!board->lb_part || strcmp(board->lb_part, part))
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continue;
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if (!pci_dev_find(board->first_vendor, board->first_device))
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continue;
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if (board->second_vendor &&
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!pci_dev_find(board->second_vendor, board->second_device))
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continue;
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return board;
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}
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return NULL;
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}
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/*
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* Match boards on pci ids and subsystem ids.
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* Second set of ids can be main only or missing completely.
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*/
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static struct board_pciid_enable *board_match_pci_card_ids(void)
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{
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struct board_pciid_enable *board = board_pciid_enables;
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for (; board->name; board++) {
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if (!board->first_card_vendor || !board->first_card_device)
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continue;
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if (!pci_card_find(board->first_vendor, board->first_device,
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board->first_card_vendor,
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board->first_card_device))
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continue;
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if (board->second_vendor) {
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if (board->second_card_vendor) {
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if (!pci_card_find(board->second_vendor,
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board->second_device,
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board->second_card_vendor,
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board->second_card_device))
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continue;
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} else {
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if (!pci_dev_find(board->second_vendor,
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board->second_device))
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continue;
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}
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}
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return board;
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}
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return NULL;
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}
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/*
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*
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*/
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int board_flash_enable(char *vendor, char *part)
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{
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struct board_pciid_enable *board = NULL;
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int ret = 0;
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if (vendor && part)
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board = board_match_linuxbios_name(vendor, part);
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if (!board)
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board = board_match_pci_card_ids();
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if (board) {
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printf("Found board \"%s\": Enabling flash write... ",
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board->name);
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ret = board->enable(board->name);
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if (ret)
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printf("Failed!\n");
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else
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printf("OK.\n");
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}
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return ret;
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}
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