ramips: modify {read,write}_config helpers

SVN-Revision: 18141

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

@@ -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;