diff options
Diffstat (limited to 'src/mainboard/lippert/frontrunner-af/mainboard.c')
| -rw-r--r-- | src/mainboard/lippert/frontrunner-af/mainboard.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mainboard/lippert/frontrunner-af/mainboard.c b/src/mainboard/lippert/frontrunner-af/mainboard.c index 83c90f391a..72f2793cc4 100644 --- a/src/mainboard/lippert/frontrunner-af/mainboard.c +++ b/src/mainboard/lippert/frontrunner-af/mainboard.c @@ -87,6 +87,7 @@ static int smb_write_blk(u8 slave, u8 command, u8 length, const u8 *data) static void init(struct device *dev) { + volatile u8 *spi_base; // base addr of Hudson's SPI host controller int i; printk(BIOS_DEBUG, CONFIG_MAINBOARD_PART_NUMBER " ENTER %s\n", __func__); @@ -123,6 +124,10 @@ static void init(struct device *dev) outb((u8)val, SIO_RUNTIME_BASE + (val >> 8)); } + /* Lower SPI speed from default 66 to 22 MHz for SST 25VF032B */ + spi_base = (u8*)(pci_read_config32(dev_find_slot(0, PCI_DEVFN(0x14, 3)), 0xA0) & 0xFFFFFFE0); + spi_base[0x0D] = (spi_base[0x0D] & ~0x30) | 0x20; // NormSpeed in SPI_Cntrl1 register + /* Notify the SMC we're alive and kicking, or after a while it will * effect a power cycle and switch to the alternate BIOS chip. * Should be done as late as possible. */ |