[LinuxBIOS] 答复: MSI ms9185 linuxbios support

[bxshi]

> This is great stuff ;-) Can you add some comment like
>  /* magic command sequence required for: <something> */

A half year ago,someone has talked about this.I searched the mail list and
found below ,and as I test, it really works fine.but cannot get its meaning
in any datasheet ;-( .

From: Jia Jianwei <JJia <at> Fortinet.com>
Subject: Re: broadcom HT1000 SATA PHY initializing
Newsgroups: gmane.linux.bios
Date: 2006-04-17 18:22:40 GMT (27 weeks, 3 days, 14 hours and 18 minutes
ago)

Sata should be working with the following initializing code. (verified on
two boards). Thanks!

Jianwei

void HT1000_SATA_init( void )
{
        volatile unsigned int *mmio_reg;
        unsigned int mmio_base,val32;
        int i;

pcibios_write_config_byte( 1, HT1000_SATA, 0x70, 0x18);
        pcibios_write_config_byte( 1, HT1000_SATA, 0x78, 0x04);

pcibios_read_config_dword (1, HT1000_SATA, 0x24, &mmio_base);

mmio_base &= 0xfffffffc;

mmio_reg = (unsigned int *)( mmio_base + 0x10f0 );

* mmio_reg = 0x40000001;

mmio_reg = ( unsigned int *)( mmio_base + 0x8c );
        * mmio_reg = 0x00ff2007;
        mdelay( 10 );
        * mmio_reg = 0x78592009;
        mdelay( 10 );
        * mmio_reg = 0x00082004;
        mdelay( 10 );
        * mmio_reg = 0x00002004;
        mdelay( 10 );
......
> Is it really trying to set the video mode to 
> 00h = T  40x25  8x8   320x200  16gray    8   B800 CGA,PCjr,Tandy
> at some point?
> maybe we need to fix this in the 0x400 bios area instead?
> I believe we want to revive parts of this instead:
>
> /*
> here we are really paranoid about faking a "real"
> BIOS. Most of this information was pulled from
> dosemu.
>
> */
> void setup_int_vect(void)
> [..]

Infect , I am not quite understand the way it handle the option rom, but it
has some problem with our vga .after add that line ,it works.

Thanks.
bxshi

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