19  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
34 #include <asm/mach-rc32434/rc32434.h>
35 #include <asm/mach-rc32434/pci.h>
41 #define PCI_CFG_SET(bus, slot, func, off) \  argument
42 	(rc32434_pci->pcicfga = (0x80000000 | \
43 				((bus) << 16) | ((slot)<<11) | \
47 				struct pci_bus *bus, unsigned int devfn,  in config_access()  argument
48 				unsigned char where, u32 *data)  in config_access()  argument
54 	PCI_CFG_SET(bus->number, slot, func, where);  in config_access()
58 		rc32434_pci->pcicfgd = *data;  in config_access()
60 		*data = rc32434_pci->pcicfgd;  in config_access()
70  * read/write a 32bit word and mask/modify the data we actually want.
72 static int read_config_byte(struct pci_bus *bus, unsigned int devfn,  in read_config_byte()  argument
75 	u32 data;  in read_config_byte()  local
78 	ret = config_access(PCI_ACCESS_READ, bus, devfn, where, &data);  in read_config_byte()
79 	*val = (data >> ((where & 3) << 3)) & 0xff;  in read_config_byte()
83 static int read_config_word(struct pci_bus *bus, unsigned int devfn,  in read_config_word()  argument
86 	u32 data;  in read_config_word()  local
89 	ret = config_access(PCI_ACCESS_READ, bus, devfn, where, &data);  in read_config_word()
90 	*val = (data >> ((where & 3) << 3)) & 0xffff;  in read_config_word()
94 static int read_config_dword(struct pci_bus *bus, unsigned int devfn,  in read_config_dword()  argument
104 	if (bus->number == 0 && PCI_SLOT(devfn) > 21)  in read_config_dword()
108 	ret = config_access(PCI_ACCESS_READ, bus, devfn, where, val);  in read_config_dword()
129 write_config_byte(struct pci_bus *bus, unsigned int devfn, int where,  in write_config_byte()  argument
132 	u32 data = 0;  in write_config_byte()  local
134 	if (config_access(PCI_ACCESS_READ, bus, devfn, where, &data))  in write_config_byte()
135 		return -1;  in write_config_byte()
137 	data = (data & ~(0xff << ((where & 3) << 3))) |  in write_config_byte()
140 	if (config_access(PCI_ACCESS_WRITE, bus, devfn, where, &data))  in write_config_byte()
141 		return -1;  in write_config_byte()
148 write_config_word(struct pci_bus *bus, unsigned int devfn, int where,  in write_config_word()  argument
151 	u32 data = 0;  in write_config_word()  local
153 	if (config_access(PCI_ACCESS_READ, bus, devfn, where, &data))  in write_config_word()
154 		return -1;  in write_config_word()
156 	data = (data & ~(0xffff << ((where & 3) << 3))) |  in write_config_word()
159 	if (config_access(PCI_ACCESS_WRITE, bus, devfn, where, &data))  in write_config_word()
160 		return -1;  in write_config_word()
168 write_config_dword(struct pci_bus *bus, unsigned int devfn, int where,  in write_config_dword()  argument
171 	if (config_access(PCI_ACCESS_WRITE, bus, devfn, where, &val))  in write_config_dword()
172 		return -1;  in write_config_dword()
177 static int pci_config_read(struct pci_bus *bus, unsigned int devfn,  in pci_config_read()  argument
182 		return read_config_byte(bus, devfn, where, (u8 *) val);  in pci_config_read()
184 		return read_config_word(bus, devfn, where, (u16 *) val);  in pci_config_read()
186 		return read_config_dword(bus, devfn, where, val);  in pci_config_read()
190 static int pci_config_write(struct pci_bus *bus, unsigned int devfn,  in pci_config_write()  argument
195 		return write_config_byte(bus, devfn, where, (u8) val);  in pci_config_write()
197 		return write_config_word(bus, devfn, where, (u16) val);  in pci_config_write()
199 		return write_config_dword(bus, devfn, where, val);  in pci_config_write()