Signed-off-by: Bin Meng bmeng.cn@gmail.com --- arch/x86/cpu/queensbay/tnc.c | 26 +++++++++++++++++++++++++- include/configs/crownbay.h | 2 ++ 2 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/arch/x86/cpu/queensbay/tnc.c b/arch/x86/cpu/queensbay/tnc.c index c0d19aa..eea70c0 100644 --- a/arch/x86/cpu/queensbay/tnc.c +++ b/arch/x86/cpu/queensbay/tnc.c @@ -6,17 +6,41 @@
#include <common.h> #include <asm/io.h> +#include <asm/pci.h> #include <asm/post.h> #include <asm/arch/fsp/fsp_support.h>
+/* PCI Configuration Space (D31:F0): LPC */ +#define PCH_LPC_DEV PCI_BDF(0, 0x1f, 0) + +static void unprotect_spi_flash(void) +{ + u32 bc; + + bc = pci_read_config32(PCH_LPC_DEV, 0xd8); + bc |= 0x1; /* unprotect the flash */ + pci_write_config32(PCH_LPC_DEV, 0xd8, bc); +} + int arch_cpu_init(void) { + struct pci_controller *hose; + int ret; + post_code(POST_CPU_INIT); #ifdef CONFIG_SYS_X86_TSC_TIMER timer_set_base(rdtsc()); #endif
- return x86_cpu_init_f(); + x86_cpu_init_f(); + + ret = pci_early_init_hose(&hose); + if (ret) + return ret; + + unprotect_spi_flash(); + + return 0; }
int print_cpuinfo(void) diff --git a/include/configs/crownbay.h b/include/configs/crownbay.h index 2314e62..a051b11 100644 --- a/include/configs/crownbay.h +++ b/include/configs/crownbay.h @@ -45,6 +45,8 @@ #define CONFIG_SCSI_DEV_LIST \ {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TCF_SATA}
+#define CONFIG_SPI_FLASH_SST + /* Video is not supported */ #undef CONFIG_VIDEO #undef CONFIG_CFB_CONSOLE