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-rw-r--r--target/linux/ar71xx/files/arch/mips/ar71xx/mach-wndr3700.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wndr3700.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wndr3700.c
index 9c5dd41a4c..472d603ba4 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wndr3700.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wndr3700.c
@@ -17,6 +17,7 @@
#include <linux/input.h>
#include <linux/pci.h>
#include <linux/ath9k_platform.h>
+#include <linux/delay.h>
#include <asm/mips_machine.h>
#include <asm/mach-ar71xx/ar71xx.h>
@@ -108,6 +109,82 @@ static struct ar71xx_pci_irq wndr3700_pci_irqs[] __initdata = {
static struct ath9k_platform_data wndr3700_wmac0_data;
static struct ath9k_platform_data wndr3700_wmac1_data;
+static void wndr3700_pci_fixup(struct pci_dev *dev)
+{
+ void __iomem *mem;
+ u16 *cal_data;
+ u16 cmd;
+ u32 bar0;
+ u32 val;
+
+ if (ar71xx_mach != AR71XX_MACH_WNDR3700)
+ return;
+
+ switch (PCI_SLOT(dev->devfn)) {
+ case 17:
+ cal_data = wndr3700_wmac0_data.eeprom_data;
+ break;
+ case 18:
+ cal_data = wndr3700_wmac1_data.eeprom_data;
+ break;
+ default:
+ return;
+ }
+
+ if (*cal_data != 0xa55a) {
+ printk(KERN_ERR "PCI: no calibration data found for %s\n",
+ pci_name(dev));
+ return;
+ }
+
+ mem = ioremap(AR71XX_PCI_MEM_BASE, 0x10000);
+ if (!mem) {
+ printk(KERN_ERR "PCI: ioremap error for device %s\n",
+ pci_name(dev));
+ return;
+ }
+
+ printk(KERN_INFO "PCI: fixup device %s\n", pci_name(dev));
+
+ pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar0);
+
+ /* Setup the PCI device to allow access to the internal registers */
+ pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, AR71XX_PCI_MEM_BASE);
+ pci_read_config_word(dev, PCI_COMMAND, &cmd);
+ cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+ pci_write_config_word(dev, PCI_COMMAND, cmd);
+
+ /* set pointer to first reg address */
+ cal_data += 3;
+ while (*cal_data != 0xffff) {
+ u32 reg;
+ reg = *cal_data++;
+ val = *cal_data++;
+ val |= (*cal_data++) << 16;
+
+ __raw_writel(val, mem + reg);
+ udelay(100);
+ }
+
+ pci_read_config_dword(dev, PCI_VENDOR_ID, &val);
+ dev->vendor = val & 0xffff;
+ dev->device = (val >> 16) & 0xffff;
+
+ pci_read_config_dword(dev, PCI_CLASS_REVISION, &val);
+ dev->revision = val & 0xff;
+ dev->class = val >> 8; /* upper 3 bytes */
+
+ pci_read_config_word(dev, PCI_COMMAND, &cmd);
+ cmd &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
+ pci_write_config_word(dev, PCI_COMMAND, cmd);
+
+ pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, bar0);
+
+ iounmap(mem);
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID,
+ wndr3700_pci_fixup);
+
static int wndr3700_pci_plat_dev_init(struct pci_dev *dev)
{
switch (PCI_SLOT(dev->devfn)) {