[U-Boot] [PATCH 10/10] RFC: Test code for glacier PCI video support

[Simon Glass]

Hi Bin,

On 7 January 2015 at 23:18, Bin Meng <bmeng.cn at gmail.com> wrote:
> Hi Simon,
>
> On Tue, Dec 30, 2014 at 10:32 AM, Simon Glass <sjg at 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 at 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.

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.

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.

Regards,
Simon