diff options
Diffstat (limited to 'chipset_enable.c')
| -rw-r--r-- | chipset_enable.c | 62 |
1 files changed, 47 insertions, 15 deletions
diff --git a/chipset_enable.c b/chipset_enable.c index d124291..1387874 100644 --- a/chipset_enable.c +++ b/chipset_enable.c @@ -430,6 +430,44 @@ static int enable_flash_vt8237s_spi(struct pci_dev *dev, const char *name) return 0; } +#define ICH_BMWAG(x) ((x >> 24) & 0xff) +#define ICH_BMRAG(x) ((x >> 16) & 0xff) +#define ICH_BRWA(x) ((x >> 8) & 0xff) +#define ICH_BRRA(x) ((x >> 0) & 0xff) + +#define ICH_FREG_BASE(x) ((x >> 0) & 0x1fff) +#define ICH_FREG_LIMIT(x) ((x >> 16) & 0x1fff) + +static void do_ich9_spi_frap(uint32_t frap, int i) +{ + const char *access_names[4] = { + "locked", "read-only", "write-only", "read-write" + }; + const char *region_names[5] = { + "Flash Descriptor", "BIOS", "Management Engine", + "Gigabit Ethernet", "Platform Data" + }; + int rwperms = ((ICH_BRWA(frap) & (1 << i)) << 1) | + ((ICH_BRRA(frap) & (1 << i)) << 0); + int offset = 0x54 + i * 4; + uint32_t freg = mmio_readl(spibar + offset), base, limit; + + msg_pdbg("0x%02X: 0x%08x (FREG%i: %s)\n", + offset, freg, i, region_names[i]); + + base = ICH_FREG_BASE(freg); + limit = ICH_FREG_LIMIT(freg); + if (base == 0x1fff && limit == 0) { + /* this FREG is disabled */ + msg_pdbg("%s region is unused.\n", region_names[i]); + return; + } + + msg_pdbg("0x%08x-0x%08x is %s\n", + (base << 12), (limit << 12) | 0x0fff, + access_names[rwperms]); +} + static int enable_flash_ich_dc_spi(struct pci_dev *dev, const char *name, int ich_generation) { @@ -554,21 +592,15 @@ static int enable_flash_ich_dc_spi(struct pci_dev *dev, const char *name, tmp = mmio_readl(spibar + 0x50); msg_pdbg("0x50: 0x%08x (FRAP)\n", tmp); - msg_pdbg("BMWAG %i, ", (tmp >> 24) & 0xff); - msg_pdbg("BMRAG %i, ", (tmp >> 16) & 0xff); - msg_pdbg("BRWA %i, ", (tmp >> 8) & 0xff); - msg_pdbg("BRRA %i\n", (tmp >> 0) & 0xff); - - msg_pdbg("0x54: 0x%08x (FREG0)\n", - mmio_readl(spibar + 0x54)); - msg_pdbg("0x58: 0x%08x (FREG1)\n", - mmio_readl(spibar + 0x58)); - msg_pdbg("0x5C: 0x%08x (FREG2)\n", - mmio_readl(spibar + 0x5C)); - msg_pdbg("0x60: 0x%08x (FREG3)\n", - mmio_readl(spibar + 0x60)); - msg_pdbg("0x64: 0x%08x (FREG4)\n", - mmio_readl(spibar + 0x64)); + msg_pdbg("BMWAG 0x%02x, ", ICH_BMWAG(tmp)); + msg_pdbg("BMRAG 0x%02x, ", ICH_BMRAG(tmp)); + msg_pdbg("BRWA 0x%02x, ", ICH_BRWA(tmp)); + msg_pdbg("BRRA 0x%02x\n", ICH_BRRA(tmp)); + + /* print out the FREGx registers along with FRAP access bits */ + for(i = 0; i < 5; i++) + do_ich9_spi_frap(tmp, i); + msg_pdbg("0x74: 0x%08x (PR0)\n", mmio_readl(spibar + 0x74)); msg_pdbg("0x78: 0x%08x (PR1)\n", |