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[PATCH] Sun HME: enable and map PCI ROM properly 

This ports the Sun GEM ROM mapping/enable fixes it sunhme (which used
the same PCI ROM mapping code).

Without this, I get NULL MAC addresses for all 4 ports (it's a SUN QFE).
With it, I get the correct addresses (the ones printed on the label on
the card).

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Willy Tarreau 2005-09-11 09:04:07 +02:00 committed by Linus Torvalds
parent 4120b028dd
commit ce1289adeb
1 changed files with 17 additions and 26 deletions
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39
drivers/net/sunhme.c
View File

@ -2954,7 +2954,7 @@ static int is_quattro_p(struct pci_dev *pdev)
} }
/* Fetch MAC address from vital product data of PCI ROM. */ /* Fetch MAC address from vital product data of PCI ROM. */
static void find_eth_addr_in_vpd(void __iomem *rom_base, int len, int index, unsigned char *dev_addr) static int find_eth_addr_in_vpd(void __iomem *rom_base, int len, int index, unsigned char *dev_addr)
{ {
int this_offset; int this_offset;
@ -2977,42 +2977,33 @@ static void find_eth_addr_in_vpd(void __iomem *rom_base, int len, int index, uns
for (i = 0; i < 6; i++) for (i = 0; i < 6; i++)
dev_addr[i] = readb(p + i); dev_addr[i] = readb(p + i);
break; return 1;
} }
index--; index--;
} }
return 0;
} }
static void get_hme_mac_nonsparc(struct pci_dev *pdev, unsigned char *dev_addr) static void get_hme_mac_nonsparc(struct pci_dev *pdev, unsigned char *dev_addr)
{ {
u32 rom_reg_orig; size_t size;
void __iomem *p; void __iomem *p = pci_map_rom(pdev, &size);
int index;
if (p) {
int index = 0;
int found;
index = 0;
if (is_quattro_p(pdev)) if (is_quattro_p(pdev))
index = PCI_SLOT(pdev->devfn); index = PCI_SLOT(pdev->devfn);
if (pdev->resource[PCI_ROM_RESOURCE].parent == NULL) { found = readb(p) == 0x55 &&
if (pci_assign_resource(pdev, PCI_ROM_RESOURCE) < 0) readb(p + 1) == 0xaa &&
goto use_random; find_eth_addr_in_vpd(p, (64 * 1024), index, dev_addr);
pci_unmap_rom(pdev, p);
if (found)
return;
} }
pci_read_config_dword(pdev, pdev->rom_base_reg, &rom_reg_orig);
pci_write_config_dword(pdev, pdev->rom_base_reg,
rom_reg_orig | PCI_ROM_ADDRESS_ENABLE);
p = ioremap(pci_resource_start(pdev, PCI_ROM_RESOURCE), (64 * 1024));
if (p != NULL && readb(p) == 0x55 && readb(p + 1) == 0xaa)
find_eth_addr_in_vpd(p, (64 * 1024), index, dev_addr);
if (p != NULL)
iounmap(p);
pci_write_config_dword(pdev, pdev->rom_base_reg, rom_reg_orig);
return;
use_random:
/* Sun MAC prefix then 3 random bytes. */ /* Sun MAC prefix then 3 random bytes. */
dev_addr[0] = 0x08; dev_addr[0] = 0x08;
dev_addr[1] = 0x00; dev_addr[1] = 0x00;