KumiSystems/openwrtv4
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

ar71xx: add PCI fixup for the WNDR3700 board

Browse source 
SVN-Revision: 18565
This commit is contained in:
Gabor Juhos 2009-11-27 21:21:21 +00:00
parent f662714bba
commit 971fcf9943
1 changed files with 77 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

77
target/linux/ar71xx/files/arch/mips/ar71xx/mach-wndr3700.c
View file

@ -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)) {