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Diffstat (limited to 'arch/powerpc/platforms/cell/celleb_pci.c')
-rw-r--r--arch/powerpc/platforms/cell/celleb_pci.c500
1 files changed, 0 insertions, 500 deletions
diff --git a/arch/powerpc/platforms/cell/celleb_pci.c b/arch/powerpc/platforms/cell/celleb_pci.c
deleted file mode 100644
index 3ce70ded2d6a..000000000000
--- a/arch/powerpc/platforms/cell/celleb_pci.c
+++ /dev/null
@@ -1,500 +0,0 @@
-/*
- * Support for PCI on Celleb platform.
- *
- * (C) Copyright 2006-2007 TOSHIBA CORPORATION
- *
- * This code is based on arch/powerpc/kernel/rtas_pci.c:
- * Copyright (C) 2001 Dave Engebretsen, IBM Corporation
- * Copyright (C) 2003 Anton Blanchard <anton@au.ibm.com>, IBM
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#undef DEBUG
-
-#include <linux/kernel.h>
-#include <linux/threads.h>
-#include <linux/pci.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/memblock.h>
-#include <linux/pci_regs.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/slab.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/prom.h>
-#include <asm/pci-bridge.h>
-#include <asm/ppc-pci.h>
-
-#include "celleb_pci.h"
-
-#define MAX_PCI_DEVICES 32
-#define MAX_PCI_FUNCTIONS 8
-#define MAX_PCI_BASE_ADDRS 3 /* use 64 bit address */
-
-/* definition for fake pci configuration area for GbE, .... ,and etc. */
-
-struct celleb_pci_resource {
- struct resource r[MAX_PCI_BASE_ADDRS];
-};
-
-struct celleb_pci_private {
- unsigned char *fake_config[MAX_PCI_DEVICES][MAX_PCI_FUNCTIONS];
- struct celleb_pci_resource *res[MAX_PCI_DEVICES][MAX_PCI_FUNCTIONS];
-};
-
-static inline u8 celleb_fake_config_readb(void *addr)
-{
- u8 *p = addr;
- return *p;
-}
-
-static inline u16 celleb_fake_config_readw(void *addr)
-{
- __le16 *p = addr;
- return le16_to_cpu(*p);
-}
-
-static inline u32 celleb_fake_config_readl(void *addr)
-{
- __le32 *p = addr;
- return le32_to_cpu(*p);
-}
-
-static inline void celleb_fake_config_writeb(u32 val, void *addr)
-{
- u8 *p = addr;
- *p = val;
-}
-
-static inline void celleb_fake_config_writew(u32 val, void *addr)
-{
- __le16 val16;
- __le16 *p = addr;
- val16 = cpu_to_le16(val);
- *p = val16;
-}
-
-static inline void celleb_fake_config_writel(u32 val, void *addr)
-{
- __le32 val32;
- __le32 *p = addr;
- val32 = cpu_to_le32(val);
- *p = val32;
-}
-
-static unsigned char *get_fake_config_start(struct pci_controller *hose,
- int devno, int fn)
-{
- struct celleb_pci_private *private = hose->private_data;
-
- if (private == NULL)
- return NULL;
-
- return private->fake_config[devno][fn];
-}
-
-static struct celleb_pci_resource *get_resource_start(
- struct pci_controller *hose,
- int devno, int fn)
-{
- struct celleb_pci_private *private = hose->private_data;
-
- if (private == NULL)
- return NULL;
-
- return private->res[devno][fn];
-}
-
-
-static void celleb_config_read_fake(unsigned char *config, int where,
- int size, u32 *val)
-{
- char *p = config + where;
-
- switch (size) {
- case 1:
- *val = celleb_fake_config_readb(p);
- break;
- case 2:
- *val = celleb_fake_config_readw(p);
- break;
- case 4:
- *val = celleb_fake_config_readl(p);
- break;
- }
-}
-
-static void celleb_config_write_fake(unsigned char *config, int where,
- int size, u32 val)
-{
- char *p = config + where;
-
- switch (size) {
- case 1:
- celleb_fake_config_writeb(val, p);
- break;
- case 2:
- celleb_fake_config_writew(val, p);
- break;
- case 4:
- celleb_fake_config_writel(val, p);
- break;
- }
-}
-
-static int celleb_fake_pci_read_config(struct pci_bus *bus,
- unsigned int devfn, int where, int size, u32 *val)
-{
- char *config;
- struct pci_controller *hose = pci_bus_to_host(bus);
- unsigned int devno = devfn >> 3;
- unsigned int fn = devfn & 0x7;
-
- /* allignment check */
- BUG_ON(where % size);
-
- pr_debug(" fake read: bus=0x%x, ", bus->number);
- config = get_fake_config_start(hose, devno, fn);
-
- pr_debug("devno=0x%x, where=0x%x, size=0x%x, ", devno, where, size);
- if (!config) {
- pr_debug("failed\n");
- return PCIBIOS_DEVICE_NOT_FOUND;
- }
-
- celleb_config_read_fake(config, where, size, val);
- pr_debug("val=0x%x\n", *val);
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-
-static int celleb_fake_pci_write_config(struct pci_bus *bus,
- unsigned int devfn, int where, int size, u32 val)
-{
- char *config;
- struct pci_controller *hose = pci_bus_to_host(bus);
- struct celleb_pci_resource *res;
- unsigned int devno = devfn >> 3;
- unsigned int fn = devfn & 0x7;
-
- /* allignment check */
- BUG_ON(where % size);
-
- config = get_fake_config_start(hose, devno, fn);
-
- if (!config)
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- if (val == ~0) {
- int i = (where - PCI_BASE_ADDRESS_0) >> 3;
-
- switch (where) {
- case PCI_BASE_ADDRESS_0:
- case PCI_BASE_ADDRESS_2:
- if (size != 4)
- return PCIBIOS_DEVICE_NOT_FOUND;
- res = get_resource_start(hose, devno, fn);
- if (!res)
- return PCIBIOS_DEVICE_NOT_FOUND;
- celleb_config_write_fake(config, where, size,
- (res->r[i].end - res->r[i].start));
- return PCIBIOS_SUCCESSFUL;
- case PCI_BASE_ADDRESS_1:
- case PCI_BASE_ADDRESS_3:
- case PCI_BASE_ADDRESS_4:
- case PCI_BASE_ADDRESS_5:
- break;
- default:
- break;
- }
- }
-
- celleb_config_write_fake(config, where, size, val);
- pr_debug(" fake write: where=%x, size=%d, val=%x\n",
- where, size, val);
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops celleb_fake_pci_ops = {
- .read = celleb_fake_pci_read_config,
- .write = celleb_fake_pci_write_config,
-};
-
-static inline void celleb_setup_pci_base_addrs(struct pci_controller *hose,
- unsigned int devno, unsigned int fn,
- unsigned int num_base_addr)
-{
- u32 val;
- unsigned char *config;
- struct celleb_pci_resource *res;
-
- config = get_fake_config_start(hose, devno, fn);
- res = get_resource_start(hose, devno, fn);
-
- if (!config || !res)
- return;
-
- switch (num_base_addr) {
- case 3:
- val = (res->r[2].start & 0xfffffff0)
- | PCI_BASE_ADDRESS_MEM_TYPE_64;
- celleb_config_write_fake(config, PCI_BASE_ADDRESS_4, 4, val);
- val = res->r[2].start >> 32;
- celleb_config_write_fake(config, PCI_BASE_ADDRESS_5, 4, val);
- /* FALLTHROUGH */
- case 2:
- val = (res->r[1].start & 0xfffffff0)
- | PCI_BASE_ADDRESS_MEM_TYPE_64;
- celleb_config_write_fake(config, PCI_BASE_ADDRESS_2, 4, val);
- val = res->r[1].start >> 32;
- celleb_config_write_fake(config, PCI_BASE_ADDRESS_3, 4, val);
- /* FALLTHROUGH */
- case 1:
- val = (res->r[0].start & 0xfffffff0)
- | PCI_BASE_ADDRESS_MEM_TYPE_64;
- celleb_config_write_fake(config, PCI_BASE_ADDRESS_0, 4, val);
- val = res->r[0].start >> 32;
- celleb_config_write_fake(config, PCI_BASE_ADDRESS_1, 4, val);
- break;
- }
-
- val = PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
- celleb_config_write_fake(config, PCI_COMMAND, 2, val);
-}
-
-static int __init celleb_setup_fake_pci_device(struct device_node *node,
- struct pci_controller *hose)
-{
- unsigned int rlen;
- int num_base_addr = 0;
- u32 val;
- const u32 *wi0, *wi1, *wi2, *wi3, *wi4;
- unsigned int devno, fn;
- struct celleb_pci_private *private = hose->private_data;
- unsigned char **config = NULL;
- struct celleb_pci_resource **res = NULL;
- const char *name;
- const unsigned long *li;
- int size, result;
-
- if (private == NULL) {
- printk(KERN_ERR "PCI: "
- "memory space for pci controller is not assigned\n");
- goto error;
- }
-
- name = of_get_property(node, "model", &rlen);
- if (!name) {
- printk(KERN_ERR "PCI: model property not found.\n");
- goto error;
- }
-
- wi4 = of_get_property(node, "reg", &rlen);
- if (wi4 == NULL)
- goto error;
-
- devno = ((wi4[0] >> 8) & 0xff) >> 3;
- fn = (wi4[0] >> 8) & 0x7;
-
- pr_debug("PCI: celleb_setup_fake_pci() %s devno=%x fn=%x\n", name,
- devno, fn);
-
- size = 256;
- config = &private->fake_config[devno][fn];
- *config = zalloc_maybe_bootmem(size, GFP_KERNEL);
- if (*config == NULL) {
- printk(KERN_ERR "PCI: "
- "not enough memory for fake configuration space\n");
- goto error;
- }
- pr_debug("PCI: fake config area assigned 0x%016lx\n",
- (unsigned long)*config);
-
- size = sizeof(struct celleb_pci_resource);
- res = &private->res[devno][fn];
- *res = zalloc_maybe_bootmem(size, GFP_KERNEL);
- if (*res == NULL) {
- printk(KERN_ERR
- "PCI: not enough memory for resource data space\n");
- goto error;
- }
- pr_debug("PCI: res assigned 0x%016lx\n", (unsigned long)*res);
-
- wi0 = of_get_property(node, "device-id", NULL);
- wi1 = of_get_property(node, "vendor-id", NULL);
- wi2 = of_get_property(node, "class-code", NULL);
- wi3 = of_get_property(node, "revision-id", NULL);
- if (!wi0 || !wi1 || !wi2 || !wi3) {
- printk(KERN_ERR "PCI: Missing device tree properties.\n");
- goto error;
- }
-
- celleb_config_write_fake(*config, PCI_DEVICE_ID, 2, wi0[0] & 0xffff);
- celleb_config_write_fake(*config, PCI_VENDOR_ID, 2, wi1[0] & 0xffff);
- pr_debug("class-code = 0x%08x\n", wi2[0]);
-
- celleb_config_write_fake(*config, PCI_CLASS_PROG, 1, wi2[0] & 0xff);
- celleb_config_write_fake(*config, PCI_CLASS_DEVICE, 2,
- (wi2[0] >> 8) & 0xffff);
- celleb_config_write_fake(*config, PCI_REVISION_ID, 1, wi3[0]);
-
- while (num_base_addr < MAX_PCI_BASE_ADDRS) {
- result = of_address_to_resource(node,
- num_base_addr, &(*res)->r[num_base_addr]);
- if (result)
- break;
- num_base_addr++;
- }
-
- celleb_setup_pci_base_addrs(hose, devno, fn, num_base_addr);
-
- li = of_get_property(node, "interrupts", &rlen);
- if (!li) {
- printk(KERN_ERR "PCI: interrupts not found.\n");
- goto error;
- }
- val = li[0];
- celleb_config_write_fake(*config, PCI_INTERRUPT_PIN, 1, 1);
- celleb_config_write_fake(*config, PCI_INTERRUPT_LINE, 1, val);
-
-#ifdef DEBUG
- pr_debug("PCI: %s irq=%ld\n", name, li[0]);
- for (i = 0; i < 6; i++) {
- celleb_config_read_fake(*config,
- PCI_BASE_ADDRESS_0 + 0x4 * i, 4,
- &val);
- pr_debug("PCI: %s fn=%d base_address_%d=0x%x\n",
- name, fn, i, val);
- }
-#endif
-
- celleb_config_write_fake(*config, PCI_HEADER_TYPE, 1,
- PCI_HEADER_TYPE_NORMAL);
-
- return 0;
-
-error:
- if (mem_init_done) {
- if (config && *config)
- kfree(*config);
- if (res && *res)
- kfree(*res);
-
- } else {
- if (config && *config) {
- size = 256;
- memblock_free(__pa(*config), size);
- }
- if (res && *res) {
- size = sizeof(struct celleb_pci_resource);
- memblock_free(__pa(*res), size);
- }
- }
-
- return 1;
-}
-
-static int __init phb_set_bus_ranges(struct device_node *dev,
- struct pci_controller *phb)
-{
- const int *bus_range;
- unsigned int len;
-
- bus_range = of_get_property(dev, "bus-range", &len);
- if (bus_range == NULL || len < 2 * sizeof(int))
- return 1;
-
- phb->first_busno = bus_range[0];
- phb->last_busno = bus_range[1];
-
- return 0;
-}
-
-static void __init celleb_alloc_private_mem(struct pci_controller *hose)
-{
- hose->private_data =
- zalloc_maybe_bootmem(sizeof(struct celleb_pci_private),
- GFP_KERNEL);
-}
-
-static int __init celleb_setup_fake_pci(struct device_node *dev,
- struct pci_controller *phb)
-{
- struct device_node *node;
-
- phb->ops = &celleb_fake_pci_ops;
- celleb_alloc_private_mem(phb);
-
- for (node = of_get_next_child(dev, NULL);
- node != NULL; node = of_get_next_child(dev, node))
- celleb_setup_fake_pci_device(node, phb);
-
- return 0;
-}
-
-static struct celleb_phb_spec celleb_fake_pci_spec __initdata = {
- .setup = celleb_setup_fake_pci,
-};
-
-static const struct of_device_id celleb_phb_match[] __initconst = {
- {
- .name = "pci-pseudo",
- .data = &celleb_fake_pci_spec,
- }, {
- .name = "epci",
- .data = &celleb_epci_spec,
- }, {
- .name = "pcie",
- .data = &celleb_pciex_spec,
- }, {
- },
-};
-
-int __init celleb_setup_phb(struct pci_controller *phb)
-{
- struct device_node *dev = phb->dn;
- const struct of_device_id *match;
- const struct celleb_phb_spec *phb_spec;
- int rc;
-
- match = of_match_node(celleb_phb_match, dev);
- if (!match)
- return 1;
-
- phb_set_bus_ranges(dev, phb);
- phb->buid = 1;
-
- phb_spec = match->data;
- rc = (*phb_spec->setup)(dev, phb);
- if (rc)
- return 1;
-
- if (phb_spec->ops)
- iowa_register_bus(phb, phb_spec->ops,
- phb_spec->iowa_init,
- phb_spec->iowa_data);
- return 0;
-}
-
-int celleb_pci_probe_mode(struct pci_bus *bus)
-{
- return PCI_PROBE_DEVTREE;
-}
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