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-rw-r--r--arch/mips/pci/Makefile1
-rw-r--r--arch/mips/pci/fixup-excite.c36
-rw-r--r--arch/mips/pci/ops-titan.c25
-rw-r--r--arch/mips/pci/pci-excite.c149
4 files changed, 204 insertions, 7 deletions
diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile
index 56000a06960..465778c5d81 100644
--- a/arch/mips/pci/Makefile
+++ b/arch/mips/pci/Makefile
@@ -23,6 +23,7 @@ obj-$(CONFIG_MARKEINS) += ops-emma2rh.o pci-emma2rh.o fixup-emma2rh.o
#
# These are still pretty much in the old state, watch, go blind.
#
+obj-$(CONFIG_BASLER_EXCITE) = ops-titan.o pci-excite.o fixup-excite.o
obj-$(CONFIG_DDB5477) += fixup-ddb5477.o pci-ddb5477.o ops-ddb5477.o
obj-$(CONFIG_LASAT) += pci-lasat.o
obj-$(CONFIG_MIPS_ATLAS) += fixup-atlas.o
diff --git a/arch/mips/pci/fixup-excite.c b/arch/mips/pci/fixup-excite.c
new file mode 100644
index 00000000000..1da696d43f0
--- /dev/null
+++ b/arch/mips/pci/fixup-excite.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2004 by Basler Vision Technologies AG
+ * Author: Thomas Koeller <thomas.koeller@baslerweb.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 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <excite.h>
+
+int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ if (pin == 0)
+ return -1;
+
+ return USB_IRQ; /* USB controller is the only PCI device */
+}
+
+/* Do platform specific device initialization at pci_enable_device() time */
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ return 0;
+}
diff --git a/arch/mips/pci/ops-titan.c b/arch/mips/pci/ops-titan.c
index 233ec6f2054..ebf8fc40e9b 100644
--- a/arch/mips/pci/ops-titan.c
+++ b/arch/mips/pci/ops-titan.c
@@ -26,8 +26,19 @@
#include <linux/pci.h>
#include <linux/kernel.h>
-#include <asm/titan_dep.h>
+#include <asm/pci.h>
+#include <asm/io.h>
+#include <asm/rm9k-ocd.h>
+/*
+ * PCI specific defines
+ */
+#define TITAN_PCI_0_CONFIG_ADDRESS 0x780
+#define TITAN_PCI_0_CONFIG_DATA 0x784
+
+/*
+ * Titan PCI Config Read Byte
+ */
static int titan_read_config(struct pci_bus *bus, unsigned int devfn, int reg,
int size, u32 * val)
{
@@ -43,8 +54,8 @@ static int titan_read_config(struct pci_bus *bus, unsigned int devfn, int reg,
/* start the configuration cycle */
- TITAN_WRITE(TITAN_PCI_0_CONFIG_ADDRESS, address);
- tmp = TITAN_READ(TITAN_PCI_0_CONFIG_DATA) >> ((reg & 3) << 3);
+ ocd_writel(address, TITAN_PCI_0_CONFIG_ADDRESS);
+ tmp = ocd_readl(TITAN_PCI_0_CONFIG_DATA) >> ((reg & 3) << 3);
switch (size) {
case 1:
@@ -71,20 +82,20 @@ static int titan_write_config(struct pci_bus *bus, unsigned int devfn, int reg,
(reg & 0xfc) | 0x80000000;
/* start the configuration cycle */
- TITAN_WRITE(TITAN_PCI_0_CONFIG_ADDRESS, address);
+ ocd_writel(address, TITAN_PCI_0_CONFIG_ADDRESS);
/* write the data */
switch (size) {
case 1:
- TITAN_WRITE_8(TITAN_PCI_0_CONFIG_DATA + (~reg & 0x3), val);
+ ocd_writeb(val, TITAN_PCI_0_CONFIG_DATA + (~reg & 0x3));
break;
case 2:
- TITAN_WRITE_16(TITAN_PCI_0_CONFIG_DATA + (~reg & 0x2), val);
+ ocd_writew(val, TITAN_PCI_0_CONFIG_DATA + (~reg & 0x2));
break;
case 4:
- TITAN_WRITE(TITAN_PCI_0_CONFIG_DATA, val);
+ ocd_writel(val, TITAN_PCI_0_CONFIG_DATA);
break;
}
diff --git a/arch/mips/pci/pci-excite.c b/arch/mips/pci/pci-excite.c
new file mode 100644
index 00000000000..3c86c77cb74
--- /dev/null
+++ b/arch/mips/pci/pci-excite.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2004 by Basler Vision Technologies AG
+ * Author: Thomas Koeller <thomas.koeller@baslerweb.com>
+ * Based on the PMC-Sierra Yosemite board support by Ralf Baechle.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/bitops.h>
+#include <asm/rm9k-ocd.h>
+#include <excite.h>
+
+
+extern struct pci_ops titan_pci_ops;
+
+
+static struct resource
+ mem_resource = {
+ .name = "PCI memory",
+ .start = EXCITE_PHYS_PCI_MEM,
+ .end = EXCITE_PHYS_PCI_MEM + EXCITE_SIZE_PCI_MEM - 1,
+ .flags = IORESOURCE_MEM
+ },
+ io_resource = {
+ .name = "PCI I/O",
+ .start = EXCITE_PHYS_PCI_IO,
+ .end = EXCITE_PHYS_PCI_IO + EXCITE_SIZE_PCI_IO - 1,
+ .flags = IORESOURCE_IO
+ };
+
+
+static struct pci_controller bx_controller = {
+ .pci_ops = &titan_pci_ops,
+ .mem_resource = &mem_resource,
+ .mem_offset = 0x00000000UL,
+ .io_resource = &io_resource,
+ .io_offset = 0x00000000UL
+};
+
+
+static char
+ iopage_failed[] __initdata = "Cannot allocate PCI I/O page",
+ modebits_no_pci[] __initdata = "PCI is not configured in mode bits";
+
+#define RM9000x2_OCD_HTSC 0x0604
+#define RM9000x2_OCD_HTBHL 0x060c
+#define RM9000x2_OCD_PCIHRST 0x078c
+
+#define RM9K_OCD_MODEBIT1 0x00d4 /* (MODEBIT1) Mode Bit 1 */
+#define RM9K_OCD_CPHDCR 0x00f4 /* CPU-PCI/HT Data Control. */
+
+#define PCISC_FB2B 0x00000200
+#define PCISC_MWICG 0x00000010
+#define PCISC_EMC 0x00000004
+#define PCISC_ERMA 0x00000002
+
+
+
+static int __init basler_excite_pci_setup(void)
+{
+ const unsigned int fullbars = memsize / (256 << 20);
+ unsigned int i;
+
+ /* Check modebits to see if PCI is really enabled. */
+ if (!((ocd_readl(RM9K_OCD_MODEBIT1) >> (47-32)) & 0x1))
+ panic(modebits_no_pci);
+
+ if (NULL == request_mem_region(EXCITE_PHYS_PCI_IO, EXCITE_SIZE_PCI_IO,
+ "Memory-mapped PCI I/O page"))
+ panic(iopage_failed);
+
+ /* Enable PCI 0 as master for config cycles */
+ ocd_writel(PCISC_EMC | PCISC_ERMA, RM9000x2_OCD_HTSC);
+
+
+ /* Set up latency timer */
+ ocd_writel(0x8008, RM9000x2_OCD_HTBHL);
+
+ /* Setup host IO and Memory space */
+ ocd_writel((EXCITE_PHYS_PCI_IO >> 4) | 1, LKB7);
+ ocd_writel(((EXCITE_SIZE_PCI_IO >> 4) & 0x7fffff00) - 0x100, LKM7);
+ ocd_writel((EXCITE_PHYS_PCI_MEM >> 4) | 1, LKB8);
+ ocd_writel(((EXCITE_SIZE_PCI_MEM >> 4) & 0x7fffff00) - 0x100, LKM8);
+
+ /* Set up PCI BARs to map all installed memory */
+ for (i = 0; i < 6; i++) {
+ const unsigned int bar = 0x610 + i * 4;
+
+ if (i < fullbars) {
+ ocd_writel(0x10000000 * i, bar);
+ ocd_writel(0x01000000 * i, bar + 0x140);
+ ocd_writel(0x0ffff029, bar + 0x100);
+ continue;
+ }
+
+ if (i == fullbars) {
+ int o;
+ u32 mask;
+
+ const unsigned long rem = memsize - i * 0x10000000;
+ if (!rem) {
+ ocd_writel(0x00000000, bar + 0x100);
+ continue;
+ }
+
+ o = ffs(rem) - 1;
+ if (rem & ~(0x1 << o))
+ o++;
+ mask = ((0x1 << o) & 0x0ffff000) - 0x1000;
+ ocd_writel(0x10000000 * i, bar);
+ ocd_writel(0x01000000 * i, bar + 0x140);
+ ocd_writel(0x00000029 | mask, bar + 0x100);
+ continue;
+ }
+
+ ocd_writel(0x00000000, bar + 0x100);
+ }
+
+ /* Finally, enable the PCI interupt */
+#if USB_IRQ > 7
+ set_c0_intcontrol(1 << USB_IRQ);
+#else
+ set_c0_status(1 << (USB_IRQ + 8));
+#endif
+
+ ioport_resource.start = EXCITE_PHYS_PCI_IO;
+ ioport_resource.end = EXCITE_PHYS_PCI_IO + EXCITE_SIZE_PCI_IO - 1;
+ set_io_port_base((unsigned long) ioremap_nocache(EXCITE_PHYS_PCI_IO, EXCITE_SIZE_PCI_IO));
+ register_pci_controller(&bx_controller);
+ return 0;
+}
+
+
+arch_initcall(basler_excite_pci_setup);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-11 15:33:55 +0000