diff options
Diffstat (limited to 'flash_enable.c')
| -rw-r--r-- | flash_enable.c | 114 |
1 files changed, 105 insertions, 9 deletions
diff --git a/flash_enable.c b/flash_enable.c index 19fd9b0..582766f 100644 --- a/flash_enable.c +++ b/flash_enable.c @@ -1,7 +1,23 @@ +/* + * flash rom utility: enable flash writes + * + * Copyright (C) 2000-2004 ??? + * Copyright (C) 2005 coresystems GmbH <stepan@openbios.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 + * + */ + #include <sys/io.h> #include <stdio.h> #include <pci/pci.h> #include <stdlib.h> +#include <stdint.h> +#include <string.h> +#include "lbtable.h" +#include "debug.h" static int enable_flash_sis630(struct pci_dev *dev, char *name) { @@ -60,7 +76,7 @@ static int enable_flash_sis630(struct pci_dev *dev, char *name) static int enable_flash_e7500(struct pci_dev *dev, char *name) { /* register 4e.b gets or'ed with one */ - unsigned char old, new; + uint8_t old, new; /* if it fails, it fails. There are so many variations of broken mobos * that it is hard to argue that we should quit at this point. */ @@ -85,7 +101,7 @@ static int enable_flash_e7500(struct pci_dev *dev, char *name) static int enable_flash_ich4(struct pci_dev *dev, char *name) { /* register 4e.b gets or'ed with one */ - unsigned char old, new; + uint8_t old, new; /* if it fails, it fails. There are so many variations of broken mobos * that it is hard to argue that we should quit at this point. */ @@ -109,7 +125,7 @@ static int enable_flash_ich4(struct pci_dev *dev, char *name) static int enable_flash_vt8235(struct pci_dev *dev, char *name) { - unsigned char old, new, val; + uint8_t old, new, val; unsigned int base; int ok; @@ -147,7 +163,7 @@ static int enable_flash_vt8235(struct pci_dev *dev, char *name) static int enable_flash_vt8231(struct pci_dev *dev, char *name) { - unsigned char val; + uint8_t val; val = pci_read_byte(dev, 0x40); val |= 0x10; @@ -163,7 +179,7 @@ static int enable_flash_vt8231(struct pci_dev *dev, char *name) static int enable_flash_cs5530(struct pci_dev *dev, char *name) { - unsigned char new; + uint8_t new; pci_write_byte(dev, 0x52, 0xee); @@ -174,12 +190,17 @@ static int enable_flash_cs5530(struct pci_dev *dev, char *name) 0x52, new, name); return -1; } + + new = pci_read_byte(dev, 0x5b) | 0x20; + pci_write_byte(dev, 0x5b, new); + return 0; } + static int enable_flash_sc1100(struct pci_dev *dev, char *name) { - unsigned char new; + uint8_t new; pci_write_byte(dev, 0x52, 0xee); @@ -195,7 +216,7 @@ static int enable_flash_sc1100(struct pci_dev *dev, char *name) static int enable_flash_sis5595(struct pci_dev *dev, char *name) { - unsigned char new, newer; + uint8_t new, newer; new = pci_read_byte(dev, 0x45); @@ -219,7 +240,7 @@ static int enable_flash_sis5595(struct pci_dev *dev, char *name) static int enable_flash_amd8111(struct pci_dev *dev, char *name) { /* register 4e.b gets or'ed with one */ - unsigned char old, new; + uint8_t old, new; /* if it fails, it fails. There are so many variations of broken mobos * that it is hard to argue that we should quit at this point. */ @@ -253,7 +274,7 @@ static int enable_flash_amd8111(struct pci_dev *dev, char *name) static int enable_flash_ck804(struct pci_dev *dev, char *name) { /* register 4e.b gets or'ed with one */ - unsigned char old, new; + uint8_t old, new; /* if it fails, it fails. There are so many variations of broken mobos * that it is hard to argue that we should quit at this point. */ @@ -305,6 +326,69 @@ static FLASH_ENABLE enables[] = { {0x10de, 0x00d3, "NVIDIA CK804", enable_flash_ck804}, // Slave, should not be here, to fix known bug for A01. }; +static int mbenable_island_aruma(void) +{ +#define EFIR 0x2e // Exteneded function index register, either 0x2e or 0x4e +#define EFDR EFIR + 1 // Extended function data register, one plus the index reg. + char b; +// Disable the flash write protect. The flash write protect is +// connected to the WinBond w83627hf GPIO 24. + + /* get io privilege access winbond config space */ + if (iopl(3) != 0) { + perror("Can not set io priviliage"); + exit(1); + } + + printf("Disabling mainboard flash write protection.\n"); + + outb(0x87, EFIR); // sequence to unlock extended functions + outb(0x87, EFIR); + + outb(0x20, EFIR); // SIO device ID register + b = inb(EFDR); + printf_debug("W83627HF device ID = 0x%x\n",b); + + if (b != 0x52) { + perror("Incorrect device ID, aborting write protect disable\n"); + exit(1); + } + + outb(0x2b, EFIR); // GPIO multiplexed pin reg. + b = inb(EFDR) | 0x10; + outb(0x2b, EFIR); + outb(b, EFDR); // select GPIO 24 instead of WDTO + + outb(0x7, EFIR); // logical device select + outb(0x8, EFDR); // point to device 8, GPIO port 2 + + outb(0x30, EFIR); // logic device activation control + outb(0x1, EFDR); // activate + + outb(0xf0, EFIR); // GPIO 20-27 I/O selection register + b = inb(EFDR) & ~0x10; + outb(0xf0, EFIR); + outb(b, EFDR); // set GPIO 24 as an output + + outb(0xf1, EFIR); // GPIO 20-27 data register + b = inb(EFDR) | 0x10; + outb(0xf1, EFIR); + outb(b, EFDR); // set GPIO 24 + + outb(0xaa, EFIR); // command to exit extended functions + + return 0; +} + +typedef struct mbenable { + char *vendor, *part; + int (*doit)(void); +} MAINBOARD_ENABLE; + +static MAINBOARD_ENABLE mbenables[] = { + { "ISLAND", "ARUMA", mbenable_island_aruma }, +}; + int enable_flash_write() { int i; @@ -317,6 +401,18 @@ int enable_flash_write() pci_init(pacc); /* Initialize the PCI library */ pci_scan_bus(pacc); /* We want to get the list of devices */ + + /* First look whether we have to do something for this + * motherboard. + */ + for (i = 0; i < sizeof(mbenables) / sizeof(mbenables[0]); i++) { + if(lb_vendor && !strcmp(mbenables[i].vendor, lb_vendor) && + lb_part && !strcmp(mbenables[i].part, lb_part)) { + mbenables[i].doit(); + break; + } + } + /* now let's try to find the chipset we have ... */ for (i = 0; i < sizeof(enables) / sizeof(enables[0]) && (!dev); i++) { |
