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ar71xx: add PCI fixup for the WNDR3700 board
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18565 3c298f89-4303-0410-b956-a3cf2f4a3e73
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@ -17,6 +17,7 @@
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#include <linux/input.h>
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#include <linux/pci.h>
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#include <linux/ath9k_platform.h>
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#include <linux/delay.h>
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#include <asm/mips_machine.h>
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#include <asm/mach-ar71xx/ar71xx.h>
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@ -108,6 +109,82 @@ static struct ar71xx_pci_irq wndr3700_pci_irqs[] __initdata = {
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static struct ath9k_platform_data wndr3700_wmac0_data;
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static struct ath9k_platform_data wndr3700_wmac1_data;
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static void wndr3700_pci_fixup(struct pci_dev *dev)
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{
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void __iomem *mem;
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u16 *cal_data;
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u16 cmd;
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u32 bar0;
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u32 val;
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if (ar71xx_mach != AR71XX_MACH_WNDR3700)
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return;
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switch (PCI_SLOT(dev->devfn)) {
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case 17:
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cal_data = wndr3700_wmac0_data.eeprom_data;
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break;
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case 18:
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cal_data = wndr3700_wmac1_data.eeprom_data;
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break;
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default:
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return;
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}
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if (*cal_data != 0xa55a) {
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printk(KERN_ERR "PCI: no calibration data found for %s\n",
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pci_name(dev));
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return;
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}
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mem = ioremap(AR71XX_PCI_MEM_BASE, 0x10000);
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if (!mem) {
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printk(KERN_ERR "PCI: ioremap error for device %s\n",
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pci_name(dev));
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return;
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}
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printk(KERN_INFO "PCI: fixup device %s\n", pci_name(dev));
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pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar0);
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/* Setup the PCI device to allow access to the internal registers */
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pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, AR71XX_PCI_MEM_BASE);
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pci_read_config_word(dev, PCI_COMMAND, &cmd);
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cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
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pci_write_config_word(dev, PCI_COMMAND, cmd);
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/* set pointer to first reg address */
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cal_data += 3;
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while (*cal_data != 0xffff) {
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u32 reg;
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reg = *cal_data++;
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val = *cal_data++;
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val |= (*cal_data++) << 16;
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__raw_writel(val, mem + reg);
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udelay(100);
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}
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pci_read_config_dword(dev, PCI_VENDOR_ID, &val);
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dev->vendor = val & 0xffff;
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dev->device = (val >> 16) & 0xffff;
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pci_read_config_dword(dev, PCI_CLASS_REVISION, &val);
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dev->revision = val & 0xff;
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dev->class = val >> 8; /* upper 3 bytes */
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pci_read_config_word(dev, PCI_COMMAND, &cmd);
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cmd &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
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pci_write_config_word(dev, PCI_COMMAND, cmd);
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pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, bar0);
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iounmap(mem);
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}
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DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID,
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wndr3700_pci_fixup);
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static int wndr3700_pci_plat_dev_init(struct pci_dev *dev)
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{
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switch (PCI_SLOT(dev->devfn)) {
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