/* * Support functions for the SH5 PCI hardware. * * Copyright (C) 2001 David J. Mckay (david.mckay@st.com) * Copyright (C) 2003, 2004 Paul Mundt * Copyright (C) 2004 Richard Curnow * * May be copied or modified under the terms of the GNU General Public * License. See linux/COPYING for more information. */ #include <linux/kernel.h> #include <linux/rwsem.h> #include <linux/smp.h> #include <linux/interrupt.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/pci.h> #include <linux/delay.h> #include <linux/types.h> #include <linux/irq.h> #include <asm/pci.h> #include <asm/io.h> #include "pci-sh5.h" static int sh5pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val) { SH5PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where)); switch (size) { case 1: *val = (u8)SH5PCI_READ_BYTE(PDR + (where & 3)); break; case 2: *val = (u16)SH5PCI_READ_SHORT(PDR + (where & 2)); break; case 4: *val = SH5PCI_READ(PDR); break; } return PCIBIOS_SUCCESSFUL; } static int sh5pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val) { SH5PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where)); switch (size) { case 1: SH5PCI_WRITE_BYTE(PDR + (where & 3), (u8)val); break; case 2: SH5PCI_WRITE_SHORT(PDR + (where & 2), (u16)val); break; case 4: SH5PCI_WRITE(PDR, val); break; } return PCIBIOS_SUCCESSFUL; } struct pci_ops sh5_pci_ops = { .read = sh5pci_read, .write = sh5pci_write, };