diff options
author | Willy Tarreau <willy@w.ods.org> | 2005-09-11 09:04:07 +0200 |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-11 09:28:17 -0700 |
commit | ce1289adeb67b5480f35cb257cbf6e9881153783 (patch) | |
tree | c1643ec9c2e0df2a53f52df27b5075e5acf63224 | |
parent | 4120b028dd231743935d954732045a87edda2a0a (diff) | |
download | kernel_samsung_smdk4412-ce1289adeb67b5480f35cb257cbf6e9881153783.zip kernel_samsung_smdk4412-ce1289adeb67b5480f35cb257cbf6e9881153783.tar.gz kernel_samsung_smdk4412-ce1289adeb67b5480f35cb257cbf6e9881153783.tar.bz2 |
[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>
-rw-r--r-- | drivers/net/sunhme.c | 43 |
1 files changed, 17 insertions, 26 deletions
diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c index f02fe41..9f046ca 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; |