When running the ROM the code is not very helpful when something goes wrong. Add a little more debugging and some logging of return values to improve this.
Signed-off-by: Simon Glass sjg@chromium.org ---
drivers/pci/pci_rom.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/pci/pci_rom.c b/drivers/pci/pci_rom.c index 0f44238bbbc8..dab0f1979068 100644 --- a/drivers/pci/pci_rom.c +++ b/drivers/pci/pci_rom.c @@ -300,14 +300,16 @@ int dm_pci_run_vga_bios(struct udevice *dev, int (*int15_handler)(void),
ret = pci_rom_probe(dev, &rom); if (ret) - return ret; + return log_msg_ret("pro", ret);
ret = pci_rom_load(rom, &ram, &alloced); - if (ret) + if (ret) { + ret = log_msg_ret("ld", ret); goto err; + }
if (!board_should_run_oprom(dev)) { - ret = -ENXIO; + ret = log_msg_ret("run", -ENXIO); goto err; }
@@ -345,21 +347,25 @@ int dm_pci_run_vga_bios(struct udevice *dev, int (*int15_handler)(void), #ifdef CONFIG_BIOSEMU BE_VGAInfo *info;
+ log_debug("Running video BIOS with emulator..."); ret = biosemu_setup(dev, &info); if (ret) goto err; biosemu_set_interrupt_handler(0x15, int15_handler); ret = biosemu_run(dev, (uchar *)ram, 1 << 16, info, true, vesa_mode, &mode_info); + log_debug("done\n"); if (ret) goto err; #endif } else { #if defined(CONFIG_X86) && (CONFIG_IS_ENABLED(X86_32BIT_INIT) || CONFIG_TPL) + log_debug("Running video BIOS..."); bios_set_interrupt_handler(0x15, int15_handler);
bios_run_on_x86(dev, (unsigned long)ram, vesa_mode, &mode_info); + log_debug("done\n"); #endif } debug("Final vesa mode %#x\n", mode_info.video_mode);