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Diffstat (limited to 'arch/mips/pci/ops-pnx8550.c')
-rw-r--r--arch/mips/pci/ops-pnx8550.c282
1 files changed, 0 insertions, 282 deletions
diff --git a/arch/mips/pci/ops-pnx8550.c b/arch/mips/pci/ops-pnx8550.c
deleted file mode 100644
index 1e6213fa7bd..00000000000
--- a/arch/mips/pci/ops-pnx8550.c
+++ /dev/null
@@ -1,282 +0,0 @@
-/*
- *
- * BRIEF MODULE DESCRIPTION
- *
- * 2.6 port, Embedded Alley Solutions, Inc
- *
- * Based on:
- * Author: source@mvista.com
- *
- * This program is free software; you can distribute it and/or modify it
- * under the terms of the GNU General Public License (Version 2) as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- */
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/vmalloc.h>
-#include <linux/delay.h>
-
-#include <asm/mach-pnx8550/pci.h>
-#include <asm/mach-pnx8550/glb.h>
-
-static inline void clear_status(void)
-{
- unsigned long pci_stat;
-
- pci_stat = inl(PCI_BASE | PCI_GPPM_STATUS);
- outl(pci_stat, PCI_BASE | PCI_GPPM_ICLR);
-}
-
-static inline unsigned int
-calc_cfg_addr(struct pci_bus *bus, unsigned int devfn, int where)
-{
- unsigned int addr;
-
- addr = ((bus->number > 0) ? (((bus->number & 0xff) << PCI_CFG_BUS_SHIFT) | 1) : 0);
- addr |= ((devfn & 0xff) << PCI_CFG_FUNC_SHIFT) | (where & 0xfc);
-
- return addr;
-}
-
-static int
-config_access(unsigned int pci_cmd, struct pci_bus *bus, unsigned int devfn, int where, unsigned int pci_mode, unsigned int *val)
-{
- unsigned int flags;
- unsigned long loops = 0;
- unsigned long ioaddr = calc_cfg_addr(bus, devfn, where);
-
- local_irq_save(flags);
- /*Clear pending interrupt status */
- if (inl(PCI_BASE | PCI_GPPM_STATUS)) {
- clear_status();
- while (!(inl(PCI_BASE | PCI_GPPM_STATUS) == 0)) ;
- }
-
- outl(ioaddr, PCI_BASE | PCI_GPPM_ADDR);
-
- if ((pci_cmd == PCI_CMD_IOW) || (pci_cmd == PCI_CMD_CONFIG_WRITE))
- outl(*val, PCI_BASE | PCI_GPPM_WDAT);
-
- outl(INIT_PCI_CYCLE | pci_cmd | (pci_mode & PCI_BYTE_ENABLE_MASK),
- PCI_BASE | PCI_GPPM_CTRL);
-
- loops =
- ((loops_per_jiffy *
- PCI_IO_JIFFIES_TIMEOUT) >> (PCI_IO_JIFFIES_SHIFT));
- while (1) {
- if (inl(PCI_BASE | PCI_GPPM_STATUS) & GPPM_DONE) {
- if ((pci_cmd == PCI_CMD_IOR) ||
- (pci_cmd == PCI_CMD_CONFIG_READ))
- *val = inl(PCI_BASE | PCI_GPPM_RDAT);
- clear_status();
- local_irq_restore(flags);
- return PCIBIOS_SUCCESSFUL;
- } else if (inl(PCI_BASE | PCI_GPPM_STATUS) & GPPM_R_MABORT) {
- break;
- }
-
- loops--;
- if (loops == 0) {
- printk("%s : Arbiter Locked.\n", __func__);
- }
- }
-
- clear_status();
- if ((pci_cmd == PCI_CMD_IOR) || (pci_cmd == PCI_CMD_IOW)) {
- printk("%s timeout (GPPM_CTRL=%X) ioaddr %lX pci_cmd %X\n",
- __func__, inl(PCI_BASE | PCI_GPPM_CTRL), ioaddr,
- pci_cmd);
- }
-
- if ((pci_cmd == PCI_CMD_IOR) || (pci_cmd == PCI_CMD_CONFIG_READ))
- *val = 0xffffffff;
- local_irq_restore(flags);
- return PCIBIOS_DEVICE_NOT_FOUND;
-}
-
-/*
- * We can't address 8 and 16 bit words directly. Instead we have to
- * read/write a 32bit word and mask/modify the data we actually want.
- */
-static int
-read_config_byte(struct pci_bus *bus, unsigned int devfn, int where, u8 * val)
-{
- unsigned int data = 0;
- int err;
-
- if (bus == NULL)
- return -1;
-
- err = config_access(PCI_CMD_CONFIG_READ, bus, devfn, where, ~(1 << (where & 3)), &data);
- switch (where & 0x03) {
- case 0:
- *val = (unsigned char)(data & 0x000000ff);
- break;
- case 1:
- *val = (unsigned char)((data & 0x0000ff00) >> 8);
- break;
- case 2:
- *val = (unsigned char)((data & 0x00ff0000) >> 16);
- break;
- case 3:
- *val = (unsigned char)((data & 0xff000000) >> 24);
- break;
- }
-
- return err;
-}
-
-static int
-read_config_word(struct pci_bus *bus, unsigned int devfn, int where, u16 * val)
-{
- unsigned int data = 0;
- int err;
-
- if (bus == NULL)
- return -1;
-
- if (where & 0x01)
- return PCIBIOS_BAD_REGISTER_NUMBER;
-
- err = config_access(PCI_CMD_CONFIG_READ, bus, devfn, where, ~(3 << (where & 3)), &data);
- switch (where & 0x02) {
- case 0:
- *val = (unsigned short)(data & 0x0000ffff);
- break;
- case 2:
- *val = (unsigned short)((data & 0xffff0000) >> 16);
- break;
- }
-
- return err;
-}
-
-static int
-read_config_dword(struct pci_bus *bus, unsigned int devfn, int where, u32 * val)
-{
- int err;
- if (bus == NULL)
- return -1;
-
- if (where & 0x03)
- return PCIBIOS_BAD_REGISTER_NUMBER;
-
- err = config_access(PCI_CMD_CONFIG_READ, bus, devfn, where, 0, val);
-
- return err;
-}
-
-static int
-write_config_byte(struct pci_bus *bus, unsigned int devfn, int where, u8 val)
-{
- unsigned int data = (unsigned int)val;
- int err;
-
- if (bus == NULL)
- return -1;
-
- switch (where & 0x03) {
- case 1:
- data = (data << 8);
- break;
- case 2:
- data = (data << 16);
- break;
- case 3:
- data = (data << 24);
- break;
- default:
- break;
- }
-
- err = config_access(PCI_CMD_CONFIG_WRITE, bus, devfn, where, ~(1 << (where & 3)), &data);
-
- return err;
-}
-
-static int
-write_config_word(struct pci_bus *bus, unsigned int devfn, int where, u16 val)
-{
- unsigned int data = (unsigned int)val;
- int err;
-
- if (bus == NULL)
- return -1;
-
- if (where & 0x01)
- return PCIBIOS_BAD_REGISTER_NUMBER;
-
- switch (where & 0x02) {
- case 2:
- data = (data << 16);
- break;
- default:
- break;
- }
- err = config_access(PCI_CMD_CONFIG_WRITE, bus, devfn, where, ~(3 << (where & 3)), &data);
-
- return err;
-}
-
-static int
-write_config_dword(struct pci_bus *bus, unsigned int devfn, int where, u32 val)
-{
- int err;
- if (bus == NULL)
- return -1;
-
- if (where & 0x03)
- return PCIBIOS_BAD_REGISTER_NUMBER;
-
- err = config_access(PCI_CMD_CONFIG_WRITE, bus, devfn, where, 0, &val);
-
- return err;
-}
-
-static int config_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 * val)
-{
- switch (size) {
- case 1: {
- u8 _val;
- int rc = read_config_byte(bus, devfn, where, &_val);
- *val = _val;
- return rc;
- }
- case 2: {
- u16 _val;
- int rc = read_config_word(bus, devfn, where, &_val);
- *val = _val;
- return rc;
- }
- default:
- return read_config_dword(bus, devfn, where, val);
- }
-}
-
-static int config_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val)
-{
- switch (size) {
- case 1:
- return write_config_byte(bus, devfn, where, (u8) val);
- case 2:
- return write_config_word(bus, devfn, where, (u16) val);
- default:
- return write_config_dword(bus, devfn, where, val);
- }
-}
-
-struct pci_ops pnx8550_pci_ops = {
- config_read,
- config_write
-};