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authorWilly Tarreau <willy@w.ods.org>2005-09-11 14:10:02 -0700
committerChris Wright <chrisw@osdl.org>2005-09-16 18:01:57 -0700
commit6829c71237ca54f1b752520ba06eacdae68249dc (patch)
tree728f0bc7ea14ab2cd94fb4e1d1a9b41bbf4376ca
parent0098d9c5f87aaff2efdcb43e30642dad7ce55b19 (diff)
[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> Signed-off-by: Chris Wright <chrisw@osdl.org>
-rw-r--r--drivers/net/sunhme.c43
1 files changed, 17 insertions, 26 deletions
diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c
index f02fe4119b2c..9f046cae2f71 100644
--- a/drivers/net/sunhme.c
+++ b/drivers/net/sunhme.c
@@ -2954,7 +2954,7 @@ static int is_quattro_p(struct pci_dev *pdev)
}
/* 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;
@@ -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++)
dev_addr[i] = readb(p + i);
- break;
+ return 1;
}
index--;
}
+ return 0;
}
static void get_hme_mac_nonsparc(struct pci_dev *pdev, unsigned char *dev_addr)
{
- u32 rom_reg_orig;
- void __iomem *p;
- int index;
+ size_t size;
+ void __iomem *p = pci_map_rom(pdev, &size);
- index = 0;
- if (is_quattro_p(pdev))
- index = PCI_SLOT(pdev->devfn);
-
- if (pdev->resource[PCI_ROM_RESOURCE].parent == NULL) {
- if (pci_assign_resource(pdev, PCI_ROM_RESOURCE) < 0)
- goto use_random;
- }
+ if (p) {
+ int index = 0;
+ int found;
- 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);
+ if (is_quattro_p(pdev))
+ index = PCI_SLOT(pdev->devfn);
- 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;
+ found = readb(p) == 0x55 &&
+ readb(p + 1) == 0xaa &&
+ find_eth_addr_in_vpd(p, (64 * 1024), index, dev_addr);
+ pci_unmap_rom(pdev, p);
+ if (found)
+ return;
+ }
-use_random:
/* Sun MAC prefix then 3 random bytes. */
dev_addr[0] = 0x08;
dev_addr[1] = 0x00;