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- Improve VPCI hiding debug message and add doxygen comments.

Browse source 
- Replace a hand-crafted open-coded VPCI hiding sequence.

Build tested on all relevant targets.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>


git-svn-id: svn://coreboot.org/repository/coreboot-v3@787 f3766cd6-281f-0410-b1cd-43a5c92072e9
This commit is contained in:
Carl-Daniel Hailfinger 2008-08-18 20:18:53 +00:00
commit c407b9e1e0
1 changed files with 23 additions and 12 deletions
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35
southbridge/amd/cs5536/cs5536.c
View file

@ -88,6 +88,28 @@ static const u32 FlashPort[] = {
MDD_LBAR_FLSH3
};
/**
* Hide unwanted virtual PCI device.
*
* @param vpci_devid The bus location of the device to be hidden.
* bits 0 -> 1 zero
* bits 2 -> 7 target dword within the target function
* (zero if we're disabling entire pci devices)
* bits 8 -> 10 target function of the device
* bits 11 -> 15 target pci device
* bits 16 -> 23 pci bus
* bits 24 -> 30 reserved and set to zero
* bit 31 triggers the config cycle
*/
static void hide_vpci(u32 vpci_devid)
{
printk(BIOS_DEBUG, "Hiding VPCI device: 0x%08X (%02x:%02x.%01x)\n",
vpci_devid, (vpci_devid >> 16) & 0xff,
(vpci_devid >> 11) & 0x1f, (vpci_devid >> 8) & 0x7);
outl(vpci_devid + 0x7C, 0xCF8);
outl(0xDEADBEEF, 0xCFC);
}
/**
* Power button setup.
*
@ -175,8 +197,7 @@ static void chipset_flash_setup(void)
static void enable_ide_nand_flash_header(void)
{
/* Tell VSA to use FLASH PCI header. Not IDE header. */
outl(0x80007A40, 0xCF8);
outl(0xDEADBEEF, 0xCFC);
hide_vpci(0x800079C4);
}
#define RTC_CENTURY 0x32
@ -621,16 +642,6 @@ static void ide_init(struct device *dev)
pci_write_config32(dev, IDE_CFG, ide_cfg);
}
static void hide_vpci(u32 vpci_devid)
{
/* Hide unwanted virtual PCI device. */
printk(BIOS_DEBUG, "Hiding VPCI device: 0x%08X\n",
vpci_devid);
outl(vpci_devid + 0x7C, 0xCF8);
outl(0xDEADBEEF, 0xCFC);
}
/**
* TODO.
*