parent
6d3d1504cf
commit
bb9123ebbe
@ -0,0 +1,114 @@
|
||||
/*
|
||||
* Atheros AP91 reference board PCI initialization
|
||||
*
|
||||
* Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License version 2 as published
|
||||
* by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/pci.h>
|
||||
#include <linux/ath9k_platform.h>
|
||||
#include <linux/delay.h>
|
||||
|
||||
#include <asm/mach-ar71xx/ar71xx.h>
|
||||
#include <asm/mach-ar71xx/pci.h>
|
||||
|
||||
#include "dev-ap91-pci.h"
|
||||
|
||||
static struct ath9k_platform_data ap91_wmac_data;
|
||||
static char ap91_wmac_mac[6];
|
||||
static int ap91_pci_fixup_enabled;
|
||||
|
||||
static struct ar71xx_pci_irq ap91_pci_irqs[] __initdata = {
|
||||
{
|
||||
.slot = 0,
|
||||
.pin = 1,
|
||||
.irq = AR71XX_PCI_IRQ_DEV0,
|
||||
}
|
||||
};
|
||||
|
||||
static int ap91_pci_plat_dev_init(struct pci_dev *dev)
|
||||
{
|
||||
switch(PCI_SLOT(dev->devfn)) {
|
||||
case 0:
|
||||
dev->dev.platform_data = &ap91_wmac_data;
|
||||
break;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void ap91_pci_fixup(struct pci_dev *dev)
|
||||
{
|
||||
void __iomem *mem;
|
||||
u16 *cal_data;
|
||||
u16 cmd;
|
||||
u32 val;
|
||||
|
||||
if (!ap91_pci_fixup_enabled)
|
||||
return;
|
||||
|
||||
printk(KERN_INFO "PCI: fixup device %s\n", pci_name(dev));
|
||||
|
||||
cal_data = ap91_wmac_data.eeprom_data;
|
||||
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;
|
||||
}
|
||||
|
||||
/* Setup the PCI device to allow access to the internal registers */
|
||||
pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0xffff);
|
||||
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 */
|
||||
|
||||
iounmap(mem);
|
||||
}
|
||||
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID, ap91_pci_fixup);
|
||||
|
||||
void __init ap91_pci_init(u8 *cal_data, u8 *mac_addr)
|
||||
{
|
||||
if (cal_data)
|
||||
memcpy(ap91_wmac_data.eeprom_data, cal_data,
|
||||
sizeof(ap91_wmac_data.eeprom_data));
|
||||
|
||||
if (mac_addr) {
|
||||
memcpy(ap91_wmac_mac, mac_addr, sizeof(ap91_wmac_mac));
|
||||
ap91_wmac_data.macaddr = ap91_wmac_mac;
|
||||
}
|
||||
|
||||
ar71xx_pci_plat_dev_init = ap91_pci_plat_dev_init;
|
||||
ar71xx_pci_init(ARRAY_SIZE(ap91_pci_irqs), ap91_pci_irqs);
|
||||
|
||||
ap91_pci_fixup_enabled = 1;
|
||||
}
|
@ -0,0 +1,23 @@
|
||||
/*
|
||||
* Atheros AP91 reference board PCI initialization
|
||||
*
|
||||
* Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License version 2 as published
|
||||
* by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef _AR71XX_DEV_AP91_PCI_H
|
||||
#define _AR71XX_DEV_AP91_PCI_H
|
||||
|
||||
#include <linux/spi/flash.h>
|
||||
|
||||
#if defined(CONFIG_AR71XX_DEV_AP94_PCI)
|
||||
void ap91_pci_init(u8 *cal_data, u8 *mac_addr) __init;
|
||||
#else
|
||||
static inline void ap91_pci_init(u8 *cal_data, u8 *mac_addr) { }
|
||||
#endif
|
||||
|
||||
#endif /* _AR71XX_DEV_AP91_PCI_H */
|
||||
|
Loading…
Reference in New Issue