diff options
Diffstat (limited to 'util/flashrom/flash_enable.c')
| -rw-r--r-- | util/flashrom/flash_enable.c | 94 |
1 files changed, 84 insertions, 10 deletions
diff --git a/util/flashrom/flash_enable.c b/util/flashrom/flash_enable.c index 91c5814537..8334b6df67 100644 --- a/util/flashrom/flash_enable.c +++ b/util/flashrom/flash_enable.c @@ -19,6 +19,9 @@ #include "lbtable.h" #include "debug.h" +// We keep this for the others. +static struct pci_access *pacc; + static int enable_flash_sis630(struct pci_dev *dev, char *name) { char b; @@ -98,7 +101,13 @@ static int enable_flash_e7500(struct pci_dev *dev, char *name) return 0; } -static int enable_flash_ich4(struct pci_dev *dev, char *name) +enum { + ICH4_BIOS_CNTL = 0x4e, + /* see page 375 of "Intel ICH7 External Design Specification" + * http://download.intel.com/design/chipsets/datashts/30701302.pdf */ + ICH7_BIOS_CNTL = 0xdc, +}; +static int enable_flash_ich(struct pci_dev *dev, char *name, int bios_cntl) { /* register 4e.b gets or'ed with one */ uint8_t old, new; @@ -106,23 +115,33 @@ static int enable_flash_ich4(struct pci_dev *dev, char *name) * that it is hard to argue that we should quit at this point. */ - old = pci_read_byte(dev, 0x4e); + old = pci_read_byte(dev, bios_cntl); new = old | 1; if (new == old) return 0; - pci_write_byte(dev, 0x4e, new); + pci_write_byte(dev, bios_cntl, new); - if (pci_read_byte(dev, 0x4e) != new) { + if (pci_read_byte(dev, bios_cntl) != new) { printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", - 0x4e, new, name); + bios_cntl, new, name); return -1; } return 0; } +static int enable_flash_ich4(struct pci_dev *dev, char *name) +{ + return enable_flash_ich(dev, name, ICH4_BIOS_CNTL); +} + +static int enable_flash_ich7(struct pci_dev *dev, char *name) +{ + return enable_flash_ich(dev, name, ICH7_BIOS_CNTL); +} + static int enable_flash_vt8235(struct pci_dev *dev, char *name) { uint8_t old, new, val; @@ -305,6 +324,57 @@ static int enable_flash_ck804(struct pci_dev *dev, char *name) return 0; } +static int enable_flash_sb400(struct pci_dev *dev, char *name) +{ + uint8_t tmp; + + struct pci_filter f; + struct pci_dev *smbusdev; + + /* get io privilege access */ + if (iopl(3) != 0) { + perror("Can not set io priviliage"); + exit(1); + } + + /* then look for the smbus device */ + pci_filter_init((struct pci_access *) 0, &f); + f.vendor = 0x1002; + f.device = 0x4372; + + for (smbusdev = pacc->devices; smbusdev; smbusdev = smbusdev->next) { + if (pci_filter_match(&f, smbusdev)) { + break; + } + } + + if(!smbusdev) { + perror("smbus device not found. aborting\n"); + exit(1); + } + + // enable some smbus stuff + tmp=pci_read_byte(smbusdev, 0x79); + tmp|=0x01; + pci_write_byte(smbusdev, 0x79, tmp); + + // change southbridge + tmp=pci_read_byte(dev, 0x48); + tmp|=0x21; + pci_write_byte(dev, 0x48, tmp); + + // now become a bit silly. + tmp=inb(0xc6f); + outb(tmp,0xeb); + outb(tmp, 0xeb); + tmp|=0x40; + outb(tmp, 0xc6f); + outb(tmp, 0xeb); + outb(tmp, 0xeb); + + return 0; +} + typedef struct penable { unsigned short vendor, device; char *name; @@ -316,24 +386,29 @@ static FLASH_ENABLE enables[] = { {0x8086, 0x2480, "E7500", enable_flash_e7500}, {0x8086, 0x24c0, "ICH4", enable_flash_ich4}, {0x8086, 0x24d0, "ICH5", enable_flash_ich4}, + {0x8086, 0x27b8, "ICH7", enable_flash_ich7}, {0x1106, 0x8231, "VT8231", enable_flash_vt8231}, {0x1106, 0x3177, "VT8235", enable_flash_vt8235}, {0x1078, 0x0100, "CS5530", enable_flash_cs5530}, {0x100b, 0x0510, "SC1100", enable_flash_sc1100}, {0x1039, 0x0008, "SIS5595", enable_flash_sis5595}, {0x1022, 0x7468, "AMD8111", enable_flash_amd8111}, + // this fallthrough looks broken. {0x10de, 0x0050, "NVIDIA CK804", enable_flash_ck804}, // LPC {0x10de, 0x0051, "NVIDIA CK804", enable_flash_ck804}, // Pro {0x10de, 0x00d3, "NVIDIA CK804", enable_flash_ck804}, // Slave, should not be here, to fix known bug for A01. + {0x1002, 0x4377, "ATI SB400", enable_flash_sb400}, // ATI Technologies Inc IXP SB400 PCI-ISA Bridge (rev 80) }; 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. +#define EFIR 0x2e /* Extended 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. + +/* 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) { @@ -393,7 +468,6 @@ static MAINBOARD_ENABLE mbenables[] = { int enable_flash_write() { int i; - struct pci_access *pacc; struct pci_dev *dev = 0; FLASH_ENABLE *enable = 0; |