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authorflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2008-07-15 17:17:04 +0000
committerflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2008-07-15 17:17:04 +0000
commit42c88ed264e86b3e8287f85e2099bc2ca7c5f51d (patch)
tree03c3dac161ce721fd65cb2f2d967eda861999b74 /target/linux/rb532/files-2.6.23/arch/mips/pci
parent69f7e26c1a2390ae345cfa94dadcc59a3fb118f7 (diff)
Move files and patches to files-2.6.23 and patches-2.6.23
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11843 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/rb532/files-2.6.23/arch/mips/pci')
-rw-r--r--target/linux/rb532/files-2.6.23/arch/mips/pci/fixup-rb500.c51
-rw-r--r--target/linux/rb532/files-2.6.23/arch/mips/pci/ops-rc32434.c218
-rw-r--r--target/linux/rb532/files-2.6.23/arch/mips/pci/pci-rc32434.c236
3 files changed, 505 insertions, 0 deletions
diff --git a/target/linux/rb532/files-2.6.23/arch/mips/pci/fixup-rb500.c b/target/linux/rb532/files-2.6.23/arch/mips/pci/fixup-rb500.c
new file mode 100644
index 000000000..76c465fea
--- /dev/null
+++ b/target/linux/rb532/files-2.6.23/arch/mips/pci/fixup-rb500.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * stevel@mvista.com or source@mvista.com
+ *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/pci.h>
+#include <asm/io.h>
+
+#include <asm/rc32434/rc32434.h>
+
+static int __devinitdata irq_map[2][12] = {
+ { 0, 0, 2, 3, 2, 3, 0, 0, 0, 0, 0, 1 },
+ { 0, 0, 1, 3, 0, 2, 1, 3, 0, 2, 1, 3 }
+};
+
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+ int irq = 0;
+
+ if (dev->bus->number < 2 && PCI_SLOT(dev->devfn) < 12) {
+ irq = irq_map[dev->bus->number][PCI_SLOT(dev->devfn)];
+ }
+ return irq + GROUP4_IRQ_BASE + 4;
+}
+
diff --git a/target/linux/rb532/files-2.6.23/arch/mips/pci/ops-rc32434.c b/target/linux/rb532/files-2.6.23/arch/mips/pci/ops-rc32434.c
new file mode 100644
index 000000000..b90ab1d12
--- /dev/null
+++ b/target/linux/rb532/files-2.6.23/arch/mips/pci/ops-rc32434.c
@@ -0,0 +1,218 @@
+/**************************************************************************
+ *
+ * BRIEF MODULE DESCRIPTION
+ * pci_ops for IDT EB434 board
+ *
+ * Copyright 2004 IDT Inc. (rischelp@idt.com)
+ * Copyright 2006 Felix Fietkau <nbd@openwrt.org>
+ *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ **************************************************************************
+ * May 2004 rkt, neb
+ *
+ * Initial Release
+ *
+ *
+ *
+ **************************************************************************
+ */
+
+#include <linux/autoconf.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+
+#include <asm/cpu.h>
+#include <asm/io.h>
+
+#include <asm/rc32434/rc32434.h>
+#include <asm/rc32434/pci.h>
+
+#define PCI_ACCESS_READ 0
+#define PCI_ACCESS_WRITE 1
+
+
+#define PCI_CFG_SET(bus,slot,func,off) \
+ (rc32434_pci->pcicfga = (0x80000000 | \
+ ((bus) << 16) | ((slot)<<11) | \
+ ((func)<<8) | (off)))
+
+static inline int config_access(unsigned char access_type, struct pci_bus *bus,
+ unsigned int devfn, unsigned char where,
+ u32 * data)
+{
+ unsigned int slot = PCI_SLOT(devfn);
+ u8 func = PCI_FUNC(devfn);
+
+ /* Setup address */
+ PCI_CFG_SET(bus->number, slot, func, where);
+ rc32434_sync();
+
+ if (access_type == PCI_ACCESS_WRITE)
+ rc32434_pci->pcicfgd = *data;
+ else
+ *data = rc32434_pci->pcicfgd;
+
+ rc32434_sync();
+
+ return 0;
+}
+
+
+/*
+ * 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)
+{
+ u32 data;
+ int ret;
+
+ ret = config_access(PCI_ACCESS_READ, bus, devfn, where, &data);
+ *val = (data >> ((where & 3) << 3)) & 0xff;
+ return ret;
+}
+
+static int read_config_word(struct pci_bus *bus, unsigned int devfn,
+ int where, u16 * val)
+{
+ u32 data;
+ int ret;
+
+ ret = config_access(PCI_ACCESS_READ, bus, devfn, where, &data);
+ *val = (data >> ((where & 3) << 3)) & 0xffff;
+ return ret;
+}
+
+static int read_config_dword(struct pci_bus *bus, unsigned int devfn,
+ int where, u32 * val)
+{
+ int ret;
+ int delay = 1;
+
+ if (bus->number == 0 && PCI_SLOT(devfn) > 21)
+ return 0;
+
+retry:
+ ret = config_access(PCI_ACCESS_READ, bus, devfn, where, val);
+
+ /* PCI scan: check for invalid values, device may not have
+ * finished initializing */
+
+ if (where == PCI_VENDOR_ID) {
+ if (ret == 0xffffffff || ret == 0x00000000 ||
+ ret == 0x0000ffff || ret == 0xffff0000) {
+
+ if (delay > 4)
+ return 0;
+
+ delay *= 2;
+ msleep(delay);
+ goto retry;
+ }
+ }
+
+ return ret;
+}
+
+static int
+write_config_byte(struct pci_bus *bus, unsigned int devfn, int where,
+ u8 val)
+{
+ u32 data = 0;
+
+ if (config_access(PCI_ACCESS_READ, bus, devfn, where, &data))
+ return -1;
+
+ data = (data & ~(0xff << ((where & 3) << 3))) |
+ (val << ((where & 3) << 3));
+
+ if (config_access(PCI_ACCESS_WRITE, bus, devfn, where, &data))
+ return -1;
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+
+static int
+write_config_word(struct pci_bus *bus, unsigned int devfn, int where,
+ u16 val)
+{
+ u32 data = 0;
+
+ if (config_access(PCI_ACCESS_READ, bus, devfn, where, &data))
+ return -1;
+
+ data = (data & ~(0xffff << ((where & 3) << 3))) |
+ (val << ((where & 3) << 3));
+
+ if (config_access(PCI_ACCESS_WRITE, bus, devfn, where, &data))
+ return -1;
+
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+
+static int
+write_config_dword(struct pci_bus *bus, unsigned int devfn, int where,
+ u32 val)
+{
+ if (config_access(PCI_ACCESS_WRITE, bus, devfn, where, &val))
+ return -1;
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static int pci_config_read(struct pci_bus *bus, unsigned int devfn,
+ int where, int size, u32 * val)
+{
+ switch (size) {
+ case 1:
+ return read_config_byte(bus, devfn, where, (u8 *) val);
+ case 2:
+ return read_config_word(bus, devfn, where, (u16 *) val);
+ default:
+ return read_config_dword(bus, devfn, where, val);
+ }
+}
+
+static int pci_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 rc32434_pci_ops = {
+ .read = pci_config_read,
+ .write = pci_config_write,
+};
diff --git a/target/linux/rb532/files-2.6.23/arch/mips/pci/pci-rc32434.c b/target/linux/rb532/files-2.6.23/arch/mips/pci/pci-rc32434.c
new file mode 100644
index 000000000..9ae596c22
--- /dev/null
+++ b/target/linux/rb532/files-2.6.23/arch/mips/pci/pci-rc32434.c
@@ -0,0 +1,236 @@
+/**************************************************************************
+ *
+ * BRIEF MODULE DESCRIPTION
+ * PCI initialization for IDT EB434 board
+ *
+ * Copyright 2004 IDT Inc. (rischelp@idt.com)
+ *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ **************************************************************************
+ * May 2004 rkt, neb
+ *
+ * Initial Release
+ *
+ *
+ *
+ **************************************************************************
+ */
+
+#include <linux/autoconf.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/rc32434/rc32434.h>
+#include <asm/rc32434/pci.h>
+
+#define PCI_ACCESS_READ 0
+#define PCI_ACCESS_WRITE 1
+
+/* define an unsigned array for the PCI registers */
+unsigned int korinaCnfgRegs[25] = {
+ KORINA_CNFG1, KORINA_CNFG2, KORINA_CNFG3, KORINA_CNFG4,
+ KORINA_CNFG5, KORINA_CNFG6, KORINA_CNFG7, KORINA_CNFG8,
+ KORINA_CNFG9, KORINA_CNFG10, KORINA_CNFG11, KORINA_CNFG12,
+ KORINA_CNFG13, KORINA_CNFG14, KORINA_CNFG15, KORINA_CNFG16,
+ KORINA_CNFG17, KORINA_CNFG18, KORINA_CNFG19, KORINA_CNFG20,
+ KORINA_CNFG21, KORINA_CNFG22, KORINA_CNFG23, KORINA_CNFG24
+};
+static struct resource rc32434_res_pci_mem1;
+static struct resource rc32434_res_pci_mem2;
+
+static struct resource rc32434_res_pci_mem1 = {
+ .name = "PCI MEM1",
+ .start = 0x50000000,
+ .end = 0x5FFFFFFF,
+ .flags = IORESOURCE_MEM,
+ .parent = &rc32434_res_pci_mem1,
+ .sibling = NULL,
+ .child = &rc32434_res_pci_mem2
+};
+
+static struct resource rc32434_res_pci_mem2 = {
+ .name = "PCI Mem2",
+ .start = 0x60000000,
+ .end = 0x6FFFFFFF,
+ .flags = IORESOURCE_MEM,
+ .parent = &rc32434_res_pci_mem1,
+ .sibling = NULL,
+ .child = NULL
+};
+
+static struct resource rc32434_res_pci_io1 = {
+ .name = "PCI I/O1",
+ .start = 0x18800000,
+ .end = 0x188FFFFF,
+ .flags = IORESOURCE_IO,
+};
+
+extern struct pci_ops rc32434_pci_ops;
+
+#define PCI_MEM1_START PCI_ADDR_START
+#define PCI_MEM1_END PCI_ADDR_START + CPUTOPCI_MEM_WIN - 1
+#define PCI_MEM2_START PCI_ADDR_START + CPUTOPCI_MEM_WIN
+#define PCI_MEM2_END PCI_ADDR_START + ( 2* CPUTOPCI_MEM_WIN) - 1
+#define PCI_IO1_START PCI_ADDR_START + (2 * CPUTOPCI_MEM_WIN)
+#define PCI_IO1_END PCI_ADDR_START + (2* CPUTOPCI_MEM_WIN) + CPUTOPCI_IO_WIN -1
+#define PCI_IO2_START PCI_ADDR_START + (2 * CPUTOPCI_MEM_WIN) + CPUTOPCI_IO_WIN
+#define PCI_IO2_END PCI_ADDR_START + (2* CPUTOPCI_MEM_WIN) + (2 * CPUTOPCI_IO_WIN) -1
+
+
+struct pci_controller rc32434_controller2;
+
+struct pci_controller rc32434_controller = {
+ .pci_ops = &rc32434_pci_ops,
+ .mem_resource = &rc32434_res_pci_mem1,
+ .io_resource = &rc32434_res_pci_io1,
+ .mem_offset = 0,
+ .io_offset = 0,
+
+};
+
+#ifdef __MIPSEB__
+#define PCI_ENDIAN_FLAG PCILBAC_sb_m
+#else
+#define PCI_ENDIAN_FLAG 0
+#endif
+
+static int __init rc32434_pcibridge_init(void)
+{
+ unsigned int pcicValue, pcicData = 0;
+ unsigned int dummyRead, pciCntlVal;
+ int loopCount;
+ unsigned int pciConfigAddr;
+
+ pcicValue = rc32434_pci->pcic;
+ pcicValue = (pcicValue >> PCIM_SHFT) & PCIM_BIT_LEN;
+ if (!((pcicValue == PCIM_H_EA) ||
+ (pcicValue == PCIM_H_IA_FIX) ||
+ (pcicValue == PCIM_H_IA_RR))) {
+ printk("PCI init error!!!\n");
+ /* Not in Host Mode, return ERROR */
+ return -1;
+ }
+ /* Enables the Idle Grant mode, Arbiter Parking */
+ pcicData |=(PCIC_igm_m|PCIC_eap_m|PCIC_en_m);
+ rc32434_pci->pcic = pcicData; /* Enable the PCI bus Interface */
+ /* Zero out the PCI status & PCI Status Mask */
+ for(;;)
+ {
+ pcicData = rc32434_pci->pcis;
+ if (!(pcicData & PCIS_rip_m))
+ break;
+ }
+
+ rc32434_pci->pcis = 0;
+ rc32434_pci->pcism = 0xFFFFFFFF;
+ /* Zero out the PCI decoupled registers */
+ rc32434_pci->pcidac=0; /* disable PCI decoupled accesses at initialization */
+ rc32434_pci->pcidas=0; /* clear the status */
+ rc32434_pci->pcidasm=0x0000007F; /* Mask all the interrupts */
+ /* Mask PCI Messaging Interrupts */
+ rc32434_pci_msg->pciiic = 0;
+ rc32434_pci_msg->pciiim = 0xFFFFFFFF;
+ rc32434_pci_msg->pciioic = 0;
+ rc32434_pci_msg->pciioim = 0;
+
+
+ /* Setup PCILB0 as Memory Window */
+ rc32434_pci->pcilba[0].a = (unsigned int) (PCI_ADDR_START);
+
+ /* setup the PCI map address as same as the local address */
+
+ rc32434_pci->pcilba[0].m = (unsigned int) (PCI_ADDR_START);
+
+
+ /* Setup PCILBA1 as MEM */
+ rc32434_pci->pcilba[0].c = ( ((SIZE_256MB & 0x1f) << PCILBAC_size_b) | PCI_ENDIAN_FLAG);
+ dummyRead = rc32434_pci->pcilba[0].c; /* flush the CPU write Buffers */
+ rc32434_pci->pcilba[1].a = 0x60000000;
+ rc32434_pci->pcilba[1].m = 0x60000000;
+
+ /* setup PCILBA2 as IO Window*/
+ rc32434_pci->pcilba[1].c = (((SIZE_256MB & 0x1f) << PCILBAC_size_b )| PCI_ENDIAN_FLAG);
+ dummyRead = rc32434_pci->pcilba[1].c; /* flush the CPU write Buffers */
+ rc32434_pci->pcilba[2].a = 0x18C00000;
+ rc32434_pci->pcilba[2].m = 0x18FFFFFF;
+
+ /* setup PCILBA2 as IO Window*/
+ rc32434_pci->pcilba[2].c = (((SIZE_4MB & 0x1f) << PCILBAC_size_b) | PCI_ENDIAN_FLAG );
+ dummyRead = rc32434_pci->pcilba[2].c; /* flush the CPU write Buffers */
+
+ /* Setup PCILBA3 as IO Window */
+ rc32434_pci->pcilba[3].a = 0x18800000;
+ rc32434_pci->pcilba[3].m = 0x18800000;
+ rc32434_pci->pcilba[3].c = ( (((SIZE_1MB & 0x1ff) << PCILBAC_size_b) | PCILBAC_msi_m) | PCI_ENDIAN_FLAG);
+ dummyRead = rc32434_pci->pcilba[3].c; /* flush the CPU write Buffers */
+
+ pciConfigAddr=(unsigned int)(0x80000004);
+ for(loopCount=0;loopCount<24;loopCount++){
+ rc32434_pci->pcicfga=pciConfigAddr;
+ dummyRead=rc32434_pci->pcicfga;
+ rc32434_pci->pcicfgd = korinaCnfgRegs[loopCount];
+ dummyRead=rc32434_pci->pcicfgd;
+ pciConfigAddr += 4;
+ }
+ rc32434_pci->pcitc = (unsigned int)((PCITC_RTIMER_VAL&0xff) << PCITC_rtimer_b)
+ | ((PCITC_DTIMER_VAL&0xff) << PCITC_dtimer_b);
+
+ pciCntlVal=rc32434_pci->pcic;
+ pciCntlVal &=~(PCIC_tnr_m);
+ rc32434_pci->pcic = pciCntlVal;
+ pciCntlVal=rc32434_pci->pcic;
+ return 0;
+}
+
+/* Do platform specific device initialization at pci_enable_device() time */
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ if (PCI_SLOT(dev->devfn) == 6 && dev->bus->number == 0) {
+ /* disable prefetched memory range */
+ pci_write_config_word(dev, PCI_PREF_MEMORY_LIMIT, 0);
+ pci_write_config_word(dev, PCI_PREF_MEMORY_BASE, 0x10);
+
+ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 4);
+ }
+ return 0;
+}
+
+static int __init rc32434_pci_init(void)
+{
+ printk("PCI: Initializing PCI\n");
+
+ ioport_resource.start = rc32434_res_pci_io1.start;
+ ioport_resource.end = rc32434_res_pci_io1.end;
+
+ rc32434_pcibridge_init();
+
+ register_pci_controller(&rc32434_controller);
+ rc32434_sync();
+
+ return 0;
+}
+
+arch_initcall(rc32434_pci_init);
+