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[MTD] ESB2 check for closed ROM window 

Add checking for closed ROM window on Intel ESB2 Southbridge.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
Cyrill Gorcunov 2007-03-06 02:39:45 -08:00 committed by David Woodhouse
parent 180bfb31fe
commit dc164bbb4b
1 changed files with 8 additions and 3 deletions
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7
drivers/mtd/maps/esb2rom.c
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@ -185,7 +185,7 @@ static int __devinit esb2rom_init_one(struct pci_dev *pdev,
/* Find a region continuous to the end of the ROM window */
window->phys = 0;
pci_read_config_word(pdev, FWH_DEC_EN1, &word);
printk(KERN_DEBUG "pci_read_config_byte : %x\n", word);
printk(KERN_DEBUG "pci_read_config_word : %x\n", word);
if ((word & FWH_8MiB) == FWH_8MiB)
window->phys = 0xff400000;
@ -212,6 +212,11 @@ static int __devinit esb2rom_init_one(struct pci_dev *pdev,
else if ((word & FWH_0_5MiB) == FWH_0_5MiB)
window->phys = 0xfff80000;
if (window->phys == 0) {
printk(KERN_ERR MOD_NAME ": Rom window is closed\n");
goto out;
}
/* reserved 0x0020 and 0x0010 */
window->phys -= 0x400000UL;
window->size = (0xffffffffUL - window->phys) + 1UL;