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authorDave Airlie <airlied@redhat.com>2015-04-20 11:32:26 +1000
committerDave Airlie <airlied@redhat.com>2015-04-20 13:05:20 +1000
commit2c33ce009ca2389dbf0535d0672214d09738e35e (patch)
tree6186a6458c3c160385d794a23eaf07c786a9e61b /arch/powerpc/platforms/cell/celleb_scc_epci.c
parentmedia-bus: Fixup RGB444_1X12, RGB565_1X16, and YUV8_1X24 media bus format (diff)
parentMerge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux (diff)
downloadlinux-dev-2c33ce009ca2389dbf0535d0672214d09738e35e.tar.xz
linux-dev-2c33ce009ca2389dbf0535d0672214d09738e35e.zip
Merge Linus master into drm-next
The merge is clean, but the arm build fails afterwards, due to API changes in the regulator tree. I've included the patch into the merge to fix the build. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'arch/powerpc/platforms/cell/celleb_scc_epci.c')
-rw-r--r--arch/powerpc/platforms/cell/celleb_scc_epci.c428
1 files changed, 0 insertions, 428 deletions
diff --git a/arch/powerpc/platforms/cell/celleb_scc_epci.c b/arch/powerpc/platforms/cell/celleb_scc_epci.c
deleted file mode 100644
index 9438bbed402f..000000000000
--- a/arch/powerpc/platforms/cell/celleb_scc_epci.c
+++ /dev/null
@@ -1,428 +0,0 @@
-/*
- * Support for SCC external PCI
- *
- * (C) Copyright 2004-2007 TOSHIBA CORPORATION
- *
- * 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/init.h>
-#include <linux/pci_regs.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_scc.h"
-#include "celleb_pci.h"
-
-#define MAX_PCI_DEVICES 32
-#define MAX_PCI_FUNCTIONS 8
-
-#define iob() __asm__ __volatile__("eieio; sync":::"memory")
-
-static inline PCI_IO_ADDR celleb_epci_get_epci_base(
- struct pci_controller *hose)
-{
- /*
- * Note:
- * Celleb epci uses cfg_addr as a base address for
- * epci control registers.
- */
-
- return hose->cfg_addr;
-}
-
-static inline PCI_IO_ADDR celleb_epci_get_epci_cfg(
- struct pci_controller *hose)
-{
- /*
- * Note:
- * Celleb epci uses cfg_data as a base address for
- * configuration area for epci devices.
- */
-
- return hose->cfg_data;
-}
-
-static inline void clear_and_disable_master_abort_interrupt(
- struct pci_controller *hose)
-{
- PCI_IO_ADDR epci_base;
- PCI_IO_ADDR reg;
- epci_base = celleb_epci_get_epci_base(hose);
- reg = epci_base + PCI_COMMAND;
- out_be32(reg, in_be32(reg) | (PCI_STATUS_REC_MASTER_ABORT << 16));
-}
-
-static int celleb_epci_check_abort(struct pci_controller *hose,
- PCI_IO_ADDR addr)
-{
- PCI_IO_ADDR reg;
- PCI_IO_ADDR epci_base;
- u32 val;
-
- iob();
- epci_base = celleb_epci_get_epci_base(hose);
-
- reg = epci_base + PCI_COMMAND;
- val = in_be32(reg);
-
- if (val & (PCI_STATUS_REC_MASTER_ABORT << 16)) {
- out_be32(reg,
- (val & 0xffff) | (PCI_STATUS_REC_MASTER_ABORT << 16));
-
- /* clear PCI Controller error, FRE, PMFE */
- reg = epci_base + SCC_EPCI_STATUS;
- out_be32(reg, SCC_EPCI_INT_PAI);
-
- reg = epci_base + SCC_EPCI_VCSR;
- val = in_be32(reg) & 0xffff;
- val |= SCC_EPCI_VCSR_FRE;
- out_be32(reg, val);
-
- reg = epci_base + SCC_EPCI_VISTAT;
- out_be32(reg, SCC_EPCI_VISTAT_PMFE);
- return PCIBIOS_DEVICE_NOT_FOUND;
- }
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static PCI_IO_ADDR celleb_epci_make_config_addr(struct pci_bus *bus,
- struct pci_controller *hose, unsigned int devfn, int where)
-{
- PCI_IO_ADDR addr;
-
- if (bus != hose->bus)
- addr = celleb_epci_get_epci_cfg(hose) +
- (((bus->number & 0xff) << 16)
- | ((devfn & 0xff) << 8)
- | (where & 0xff)
- | 0x01000000);
- else
- addr = celleb_epci_get_epci_cfg(hose) +
- (((devfn & 0xff) << 8) | (where & 0xff));
-
- pr_debug("EPCI: config_addr = 0x%p\n", addr);
-
- return addr;
-}
-
-static int celleb_epci_read_config(struct pci_bus *bus,
- unsigned int devfn, int where, int size, u32 *val)
-{
- PCI_IO_ADDR epci_base;
- PCI_IO_ADDR addr;
- struct pci_controller *hose = pci_bus_to_host(bus);
-
- /* allignment check */
- BUG_ON(where % size);
-
- if (!celleb_epci_get_epci_cfg(hose))
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- if (bus->number == hose->first_busno && devfn == 0) {
- /* EPCI controller self */
-
- epci_base = celleb_epci_get_epci_base(hose);
- addr = epci_base + where;
-
- switch (size) {
- case 1:
- *val = in_8(addr);
- break;
- case 2:
- *val = in_be16(addr);
- break;
- case 4:
- *val = in_be32(addr);
- break;
- default:
- return PCIBIOS_DEVICE_NOT_FOUND;
- }
-
- } else {
-
- clear_and_disable_master_abort_interrupt(hose);
- addr = celleb_epci_make_config_addr(bus, hose, devfn, where);
-
- switch (size) {
- case 1:
- *val = in_8(addr);
- break;
- case 2:
- *val = in_le16(addr);
- break;
- case 4:
- *val = in_le32(addr);
- break;
- default:
- return PCIBIOS_DEVICE_NOT_FOUND;
- }
- }
-
- pr_debug("EPCI: "
- "addr=0x%p, devfn=0x%x, where=0x%x, size=0x%x, val=0x%x\n",
- addr, devfn, where, size, *val);
-
- return celleb_epci_check_abort(hose, NULL);
-}
-
-static int celleb_epci_write_config(struct pci_bus *bus,
- unsigned int devfn, int where, int size, u32 val)
-{
- PCI_IO_ADDR epci_base;
- PCI_IO_ADDR addr;
- struct pci_controller *hose = pci_bus_to_host(bus);
-
- /* allignment check */
- BUG_ON(where % size);
-
- if (!celleb_epci_get_epci_cfg(hose))
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- if (bus->number == hose->first_busno && devfn == 0) {
- /* EPCI controller self */
-
- epci_base = celleb_epci_get_epci_base(hose);
- addr = epci_base + where;
-
- switch (size) {
- case 1:
- out_8(addr, val);
- break;
- case 2:
- out_be16(addr, val);
- break;
- case 4:
- out_be32(addr, val);
- break;
- default:
- return PCIBIOS_DEVICE_NOT_FOUND;
- }
-
- } else {
-
- clear_and_disable_master_abort_interrupt(hose);
- addr = celleb_epci_make_config_addr(bus, hose, devfn, where);
-
- switch (size) {
- case 1:
- out_8(addr, val);
- break;
- case 2:
- out_le16(addr, val);
- break;
- case 4:
- out_le32(addr, val);
- break;
- default:
- return PCIBIOS_DEVICE_NOT_FOUND;
- }
- }
-
- return celleb_epci_check_abort(hose, addr);
-}
-
-struct pci_ops celleb_epci_ops = {
- .read = celleb_epci_read_config,
- .write = celleb_epci_write_config,
-};
-
-/* to be moved in FW */
-static int __init celleb_epci_init(struct pci_controller *hose)
-{
- u32 val;
- PCI_IO_ADDR reg;
- PCI_IO_ADDR epci_base;
- int hwres = 0;
-
- epci_base = celleb_epci_get_epci_base(hose);
-
- /* PCI core reset(Internal bus and PCI clock) */
- reg = epci_base + SCC_EPCI_CKCTRL;
- val = in_be32(reg);
- if (val == 0x00030101)
- hwres = 1;
- else {
- val &= ~(SCC_EPCI_CKCTRL_CRST0 | SCC_EPCI_CKCTRL_CRST1);
- out_be32(reg, val);
-
- /* set PCI core clock */
- val = in_be32(reg);
- val |= (SCC_EPCI_CKCTRL_OCLKEN | SCC_EPCI_CKCTRL_LCLKEN);
- out_be32(reg, val);
-
- /* release PCI core reset (internal bus) */
- val = in_be32(reg);
- val |= SCC_EPCI_CKCTRL_CRST0;
- out_be32(reg, val);
-
- /* set PCI clock select */
- reg = epci_base + SCC_EPCI_CLKRST;
- val = in_be32(reg);
- val &= ~SCC_EPCI_CLKRST_CKS_MASK;
- val |= SCC_EPCI_CLKRST_CKS_2;
- out_be32(reg, val);
-
- /* set arbiter */
- reg = epci_base + SCC_EPCI_ABTSET;
- out_be32(reg, 0x0f1f001f); /* temporary value */
-
- /* buffer on */
- reg = epci_base + SCC_EPCI_CLKRST;
- val = in_be32(reg);
- val |= SCC_EPCI_CLKRST_BC;
- out_be32(reg, val);
-
- /* PCI clock enable */
- val = in_be32(reg);
- val |= SCC_EPCI_CLKRST_PCKEN;
- out_be32(reg, val);
-
- /* release PCI core reset (all) */
- reg = epci_base + SCC_EPCI_CKCTRL;
- val = in_be32(reg);
- val |= (SCC_EPCI_CKCTRL_CRST0 | SCC_EPCI_CKCTRL_CRST1);
- out_be32(reg, val);
-
- /* set base translation registers. (already set by Beat) */
-
- /* set base address masks. (already set by Beat) */
- }
-
- /* release interrupt masks and clear all interrupts */
- reg = epci_base + SCC_EPCI_INTSET;
- out_be32(reg, 0x013f011f); /* all interrupts enable */
- reg = epci_base + SCC_EPCI_VIENAB;
- val = SCC_EPCI_VIENAB_PMPEE | SCC_EPCI_VIENAB_PMFEE;
- out_be32(reg, val);
- reg = epci_base + SCC_EPCI_STATUS;
- out_be32(reg, 0xffffffff);
- reg = epci_base + SCC_EPCI_VISTAT;
- out_be32(reg, 0xffffffff);
-
- /* disable PCI->IB address translation */
- reg = epci_base + SCC_EPCI_VCSR;
- val = in_be32(reg);
- val &= ~(SCC_EPCI_VCSR_DR | SCC_EPCI_VCSR_AT);
- out_be32(reg, val);
-
- /* set base addresses. (no need to set?) */
-
- /* memory space, bus master enable */
- reg = epci_base + PCI_COMMAND;
- val = PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
- out_be32(reg, val);
-
- /* endian mode setup */
- reg = epci_base + SCC_EPCI_ECMODE;
- val = 0x00550155;
- out_be32(reg, val);
-
- /* set control option */
- reg = epci_base + SCC_EPCI_CNTOPT;
- val = in_be32(reg);
- val |= SCC_EPCI_CNTOPT_O2PMB;
- out_be32(reg, val);
-
- /* XXX: temporay: set registers for address conversion setup */
- reg = epci_base + SCC_EPCI_CNF10_REG;
- out_be32(reg, 0x80000008);
- reg = epci_base + SCC_EPCI_CNF14_REG;
- out_be32(reg, 0x40000008);
-
- reg = epci_base + SCC_EPCI_BAM0;
- out_be32(reg, 0x80000000);
- reg = epci_base + SCC_EPCI_BAM1;
- out_be32(reg, 0xe0000000);
-
- reg = epci_base + SCC_EPCI_PVBAT;
- out_be32(reg, 0x80000000);
-
- if (!hwres) {
- /* release external PCI reset */
- reg = epci_base + SCC_EPCI_CLKRST;
- val = in_be32(reg);
- val |= SCC_EPCI_CLKRST_PCIRST;
- out_be32(reg, val);
- }
-
- return 0;
-}
-
-static int __init celleb_setup_epci(struct device_node *node,
- struct pci_controller *hose)
-{
- struct resource r;
-
- pr_debug("PCI: celleb_setup_epci()\n");
-
- /*
- * Note:
- * Celleb epci uses cfg_addr and cfg_data member of
- * pci_controller structure in irregular way.
- *
- * cfg_addr is used to map for control registers of
- * celleb epci.
- *
- * cfg_data is used for configuration area of devices
- * on Celleb epci buses.
- */
-
- if (of_address_to_resource(node, 0, &r))
- goto error;
- hose->cfg_addr = ioremap(r.start, resource_size(&r));
- if (!hose->cfg_addr)
- goto error;
- pr_debug("EPCI: cfg_addr map 0x%016llx->0x%016lx + 0x%016llx\n",
- r.start, (unsigned long)hose->cfg_addr, resource_size(&r));
-
- if (of_address_to_resource(node, 2, &r))
- goto error;
- hose->cfg_data = ioremap(r.start, resource_size(&r));
- if (!hose->cfg_data)
- goto error;
- pr_debug("EPCI: cfg_data map 0x%016llx->0x%016lx + 0x%016llx\n",
- r.start, (unsigned long)hose->cfg_data, resource_size(&r));
-
- hose->ops = &celleb_epci_ops;
- celleb_epci_init(hose);
-
- return 0;
-
-error:
- if (hose->cfg_addr)
- iounmap(hose->cfg_addr);
-
- if (hose->cfg_data)
- iounmap(hose->cfg_data);
- return 1;
-}
-
-struct celleb_phb_spec celleb_epci_spec __initdata = {
- .setup = celleb_setup_epci,
- .ops = &spiderpci_ops,
- .iowa_init = &spiderpci_iowa_init,
- .iowa_data = (void *)0,
-};