mr/openwrt
2
0
Fork 1
Code Issues 7 Pull Requests Releases Wiki Activity

ramips: modify {read,write}_config helpers

Browse Source 
SVN-Revision: 18141
This commit is contained in:
Gabor Juhos 2009-10-25 07:10:14 +00:00
parent ebde2e4c90
commit d681005ce3
1 changed files with 15 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
target/linux/ramips/files/arch/mips/pci/pci-rt288x.c
View File

@ -146,29 +146,28 @@ static struct pci_controller rt2880_pci_controller = {
.io_resource = &rt2880_pci_mem_resource,
};
static inline void read_config(unsigned long bus, unsigned long dev,
unsigned long func, unsigned long reg,
unsigned long *val)
static inline u32 rt2880_pci_read_u32(unsigned long reg)
{
unsigned long address;
unsigned long flags;
u32 address;
u32 ret;
address = rt2880_pci_get_cfgaddr(bus, dev, func, reg);
address = rt2880_pci_get_cfgaddr(0, 0, 0, reg);
spin_lock_irqsave(&rt2880_pci_lock, flags);
rt2880_pci_reg_write(address, RT2880_PCI_REG_CONFIG_ADDR);
*val = rt2880_pci_reg_read(RT2880_PCI_REG_CONFIG_DATA);
ret = rt2880_pci_reg_read(RT2880_PCI_REG_CONFIG_DATA);
spin_unlock_irqrestore(&rt2880_pci_lock, flags);
return ret;
}
static inline void write_config(unsigned long bus, unsigned long dev,
unsigned long func, unsigned long reg,
unsigned long val)
static inline void rt2880_pci_write_u32(unsigned long reg, u32 val)
{
unsigned long address;
unsigned long flags;
u32 address;
address = rt2880_pci_get_cfgaddr(bus, dev, func, reg);
address = rt2880_pci_get_cfgaddr(0, 0, 0, reg);
spin_lock_irqsave(&rt2880_pci_lock, flags);
rt2880_pci_reg_write(address, RT2880_PCI_REG_CONFIG_ADDR);
@ -179,7 +178,6 @@ static inline void write_config(unsigned long bus, unsigned long dev,
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
u16 cmd;
unsigned long val;
int irq = -1;
if (dev->bus->number != 0)
@ -187,8 +185,8 @@ int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
switch (PCI_SLOT(dev->devfn)) {
case 0x00:
write_config(0, 0, 0, PCI_BASE_ADDRESS_0, 0x08000000);
read_config(0, 0, 0, PCI_BASE_ADDRESS_0, &val);
rt2880_pci_write_u32(PCI_BASE_ADDRESS_0, 0x08000000);
(void) rt2880_pci_read_u32(PCI_BASE_ADDRESS_0);
break;
case 0x11:
irq = RT288X_CPU_IRQ_PCI;
@ -214,7 +212,6 @@ int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
static int __init rt2880_pci_init(void)
{
unsigned long val = 0;
int i;
rt2880_pci_base = ioremap_nocache(RT2880_PCI_BASE, PAGE_SIZE);
@ -231,8 +228,9 @@ static int __init rt2880_pci_init(void)
rt2880_pci_reg_write(0x00800001, RT2880_PCI_REG_CLASS);
rt2880_pci_reg_write(0x28801814, RT2880_PCI_REG_SUBID);
rt2880_pci_reg_write(0x000c0000, RT2880_PCI_REG_PCIMSK_ADDR);
write_config(0, 0, 0, PCI_BASE_ADDRESS_0, 0x08000000);
read_config(0, 0, 0, PCI_BASE_ADDRESS_0, &val);
rt2880_pci_write_u32(PCI_BASE_ADDRESS_0, 0x08000000);
(void) rt2880_pci_read_u32(PCI_BASE_ADDRESS_0);
register_pci_controller(&rt2880_pci_controller);
return 0;