diff options
Diffstat (limited to 'src/northbridge/intel/i82830/vga.c')
| -rw-r--r-- | src/northbridge/intel/i82830/vga.c | 60 |
1 files changed, 57 insertions, 3 deletions
diff --git a/src/northbridge/intel/i82830/vga.c b/src/northbridge/intel/i82830/vga.c index e9cfdac0c6..8c1cac0a84 100644 --- a/src/northbridge/intel/i82830/vga.c +++ b/src/northbridge/intel/i82830/vga.c @@ -24,13 +24,67 @@ #include <device/device.h> #include <device/pci.h> #include <device/pci_ids.h> +#include <cbfs.h> +#include <x86emu/x86emu.h> -static void vga_init(device_t dev) { - +static void vga_init(device_t dev) +{ printk_info("Starting Graphics Initialization\n"); + struct cbfs_file *file = cbfs_find("mbi.bin"); + void *mbi = NULL; + unsigned int mbi_len = 0; + + if (file) { + if (ntohl(file->type) != CBFS_TYPE_MBI) { + printk_info( "CBFS: MBI binary is of type %x instead of" + "type %x\n", file->type, CBFS_TYPE_MBI); + } else { + mbi = (void *) CBFS_SUBHEADER(file); + mbi_len = file->len; + } + } else { + printk_info( "Could not find MBI.\n"); + } + + if (mbi && mbi_len) { + /* The GDT or coreboot table is going to live here. But + * a long time after we relocated the GNVS, so this is + * not troublesome. + */ + *(u32 *)0x500 = (u32)mbi; + *(u32 *)0x504 = (u32)mbi_len; + outb(0xeb, 0xb2); + } + pci_dev_init(dev); printk_info("Graphics Initialization Complete\n"); - /* Future TV-OUT code will be called from here. */ + + /* Enable TV-Out */ +#if defined(CONFIG_PCI_OPTION_ROM_RUN_YABEL) && CONFIG_PCI_OPTION_ROM_RUN_YABEL +#define PIPE_A_CRT (1 << 0) +#define PIPE_A_LFP (1 << 1) +#define PIPE_A_TV (1 << 3) +#define PIPE_B_CRT (1 << 8) +#define PIPE_B_TV (1 << 10) + printk_debug("Enabling TV-Out\n"); + void runInt10(void); + M.x86.R_AX = 0x5f64; + M.x86.R_BX = 0x0001; // Set Display Device, force execution + M.x86.R_CX = PIPE_A_CRT | PIPE_A_TV; + // M.x86.R_CX = PIPE_B_TV; + runInt10(); + switch (M.x86.R_AX) { + case 0x005f: + printk_debug("... failed.\n"); + break; + case 0x015f: + printk_debug("... ok.\n"); + break; + default: + printk_debug("... not supported.\n"); + break; + } +#endif } static const struct device_operations vga_operations = { |