Hi Bin,
On 8 January 2015 at 18:34, Bin Meng bmeng.cn@gmail.com wrote:
Hi Simon,
On Thu, Jan 8, 2015 at 11:06 PM, Simon Glass sjg@chromium.org wrote:
Hi Bin,
On 7 January 2015 at 23:18, Bin Meng bmeng.cn@gmail.com wrote:
Hi Simon,
On Tue, Dec 30, 2014 at 10:32 AM, Simon Glass sjg@chromium.org wrote:
NOT TO APPLY
This shows how to enable video for the glacier board, as an example of the emulator working on a VESA-compliant graphics card.
Signed-off-by: Simon Glass sjg@chromium.org
include/configs/canyonlands.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+)
diff --git a/include/configs/canyonlands.h b/include/configs/canyonlands.h index 7a1499d..c55e076 100644 --- a/include/configs/canyonlands.h +++ b/include/configs/canyonlands.h @@ -133,6 +133,9 @@ #define CONFIG_SYS_NOR_CS 0 /* NOR chip connected to CSx */ #define CONFIG_SYS_NAND_CS 3 /* NAND chip connected to CSx */
+#define CONFIG_CONSOLE_MUX +#define CONFIG_SYS_CONSOLE_IS_IN_ENV
/*-----------------------------------------------------------------------
- FLASH related
*----------------------------------------------------------------------*/ @@ -359,6 +362,15 @@ "ramdisk_addr=fc200000\0" \ "pciconfighost=1\0" \ "pcie_mode=RP:RP\0" \
"eth1addr=00:01:ec:00:f4:9d\0" \"eth2addr=00:01:ec:00:f4:9e\0" \"eth3addr=00:01:ec:00:f4:9f\0" \"ethact=ppc_4xx_eth0\0" \"ethaddr=00:01:ec:00:f4:9c\0" \"stderr=serial\0" \"stdin=serial\0" \"stdout=serial,vga\0" \"autoload=n\0" \ ""#else /* defined(CONFIG_ARCHES) */ #define CONFIG_EXTRA_ENV_SETTINGS \ @@ -675,4 +687,23 @@ } #endif
+#define CONFIG_VIDEO
+#ifdef CONFIG_VIDEO +#define CONFIG_BIOSEMU /* x86 bios emulator for vga bios */ +#define CONFIG_VIDEO_VESA +#define VIDEO_IO_OFFSET 0xd8000000 +#define CONFIG_SYS_ISA_IO_BASE_ADDRESS VIDEO_IO_OFFSET +#define CONFIG_VIDEO_SW_CURSOR +#define CONFIG_VIDEO_LOGO +#define CONFIG_CFB_CONSOLE +#define CONFIG_SPLASH_SCREEN +#define CONFIG_VGA_AS_SINGLE_DEVICE +#define CONFIG_CMD_BMP +#endif
+#define CONFIG_FRAMEBUFFER_SET_VESA_MODE +#define CONFIG_FRAMEBUFFER_VESA_MODE 0x114 +#define CONFIG_CMD_TFTPPUT
#endif /* __CONFIG_H */
Could you also post the codes that actually run the vga bios on ppc target? I may find another non-x86 board to test.
It is all there - I am using the existing support. If you see pci_run_vga_bios() it calls biosemu_run() in the emulation case.
Sorry I mean the complete canyonlands codes which calls pci_run_vga_bios(). I see currently pci_run_vga_bios() is only called by chromebook_link. And do you think the int15_handler() required by the biosemu needs to be common?
This series is at u-boot-x86/vesa.
You can see the call from the vesa video driver, vesa_fb.c.
Re int15_handler(), yes I think it should be, but so far I haven't needed it.
I think the ROM access code can be made more common, but I left that task for now.
Re your other question I was looking for the VGA enable bit, as I remembered it from years ago. It doesn't seem to be needed for that platforms I have tested. But if it is generally needed we should add it.
Which platform do you use? I doubt the VGA enable bit only affects x86 as it opens the A0000 and I/O address decoding which is only applicable on x86.
I'm only using glacier and link so far. I suspect there might be something wrong as only one of my video cards works fully on glacier - another once gives a snowy picture.
For the ROM, pci_rom_load() works for me, after pciauto_setup_rom() is called. I wonder if you haven't enabled the ROM BAR? I initially got the same result as you.
Yes, I called pciauto_setup_rom() in my codes. I also verified the expansion ROM address register has bit0 set to 1 which means enabled.
And you still can't see the ROM? Does the BAR give the correct ROM size? Do you enable memory access in the command register?
Regards, Simon