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Revert PCI config space writes on shutdown

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This means all chipset enables etc. will be undone on shutdown.
Reversible PCI config space writes now use rpci_write_*().
PCI config space writes which are one-shot (e.g. communication via
config space) should continue to use the permanent pci_write_*
variants.

Extend the number of available register_shutdown slots to 32.

Corresponding to flashrom svn r1232.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
This commit is contained in:
Carl-Daniel Hailfinger
2010-11-10 15:25:18 +00:00
parent caf2d42d9a
commit 2bee8cf898
7 changed files with 118 additions and 65 deletions
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6
programmer.h
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@ -212,6 +212,12 @@ struct pcidev_status {
};
uint32_t pcidev_validate(struct pci_dev *dev, uint32_t bar, const struct pcidev_status *devs);
uint32_t pcidev_init(uint16_t vendor_id, uint32_t bar, const struct pcidev_status *devs);
/* rpci_write_* are reversible writes. The original PCI config space register
* contents will be restored on shutdown.
*/
int rpci_write_byte(struct pci_dev *dev, int reg, u8 data);
int rpci_write_word(struct pci_dev *dev, int reg, u16 data);
int rpci_write_long(struct pci_dev *dev, int reg, u32 data);
#endif
/* print.c */