diff options
Diffstat (limited to 'src/devices/oprom/x86.c')
| -rw-r--r-- | src/devices/oprom/x86.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/src/devices/oprom/x86.c b/src/devices/oprom/x86.c index 22fc2c5da0..4d7357c93a 100644 --- a/src/devices/oprom/x86.c +++ b/src/devices/oprom/x86.c @@ -27,6 +27,7 @@ #include <arch/interrupt.h> #include <cbfs.h> #include <delay.h> +#include <pc80/i8259.h> #include "x86.h" #include "vbe.h" #include "../../src/lib/jpeg.h" @@ -70,14 +71,9 @@ static int intXX_exception_handler(struct eregs *regs) { printk(BIOS_INFO, "Oops, exception %d while executing option rom\n", regs->vector); -#if 0 - // Odd: The i945GM VGA oprom chokes on a pushl %eax and will - // die with an exception #6 if we run the coreboot exception - // handler. Just continue, as it executes fine. x86_exception(regs); // Call coreboot exception handler -#endif - return 0; // Never returns? + return 0; // Never really returns } static int intXX_unknown_handler(struct eregs *regs) @@ -186,17 +182,20 @@ static void setup_realmode_idt(void) #if CONFIG_FRAMEBUFFER_SET_VESA_MODE static u8 vbe_get_mode_info(vbe_mode_info_t * mode_info) { + printk(BIOS_DEBUG, "Getting information about VESA mode %04x\n", + mode_info->video_mode); char *buffer = (char *)&__buffer; u16 buffer_seg = (((unsigned long)buffer) >> 4) & 0xff00; u16 buffer_adr = ((unsigned long)buffer) & 0xffff; realmode_interrupt(0x10, VESA_GET_MODE_INFO, 0x0000, mode_info->video_mode, 0x0000, buffer_seg, buffer_adr); - memcpy(mode_info, buffer, sizeof(vbe_mode_info_t)); + memcpy(mode_info->mode_info_block, buffer, sizeof(vbe_mode_info_t)); return 0; } static u8 vbe_set_mode(vbe_mode_info_t * mode_info) { + printk(BIOS_DEBUG, "Setting VESA mode %04x\n", mode_info->video_mode); // request linear framebuffer mode mode_info->video_mode |= (1 << 14); // request clearing of framebuffer @@ -216,9 +215,8 @@ void vbe_set_graphics(void) mode_info.video_mode = (1 << 14) | CONFIG_FRAMEBUFFER_VESA_MODE; vbe_get_mode_info(&mode_info); unsigned char *framebuffer = - (unsigned char *) le32_to_cpu(mode_info.vesa.phys_base_ptr); + (unsigned char *)mode_info.vesa.phys_base_ptr; printk(BIOS_DEBUG, "framebuffer: %p\n", framebuffer); - printk(BIOS_DEBUG, "framebuffer: %x\n", mode_info.vesa.phys_base_ptr); vbe_set_mode(&mode_info); #if CONFIG_BOOTSPLASH struct jpeg_decdata *decdata; @@ -242,8 +240,7 @@ void vbe_textmode_console(void) void fill_lb_framebuffer(struct lb_framebuffer *framebuffer) { - framebuffer->physical_address = - le32_to_cpu(mode_info.vesa.phys_base_ptr); + framebuffer->physical_address = mode_info.vesa.phys_base_ptr; framebuffer->x_resolution = le16_to_cpu(mode_info.vesa.x_resolution); framebuffer->y_resolution = le16_to_cpu(mode_info.vesa.y_resolution); @@ -269,6 +266,12 @@ void run_bios(struct device *dev, unsigned long addr) { u32 num_dev = (dev->bus->secondary << 8) | dev->path.pci.devfn; + /* Setting up required hardware. + * Removing this will cause random illegal instruction exceptions + * in some option roms. + */ + setup_i8259(); + /* Set up BIOS Data Area */ setup_bda(); |