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Diffstat (limited to 'arch/mips/pci/pci-emma2rh.c')
-rw-r--r--arch/mips/pci/pci-emma2rh.c85
1 files changed, 85 insertions, 0 deletions
diff --git a/arch/mips/pci/pci-emma2rh.c b/arch/mips/pci/pci-emma2rh.c
new file mode 100644
index 000000000..773e34ff4
--- /dev/null
+++ b/arch/mips/pci/pci-emma2rh.c
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) NEC Electronics Corporation 2004-2006
+ *
+ * This file is based on the arch/mips/ddb5xxx/ddb5477/pci.c
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ *
+ * 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/types.h>
+#include <linux/pci.h>
+
+#include <asm/bootinfo.h>
+
+#include <asm/emma/emma2rh.h>
+
+static struct resource pci_io_resource = {
+ .name = "pci IO space",
+ .start = EMMA2RH_PCI_IO_BASE,
+ .end = EMMA2RH_PCI_IO_BASE + EMMA2RH_PCI_IO_SIZE - 1,
+ .flags = IORESOURCE_IO,
+};
+
+static struct resource pci_mem_resource = {
+ .name = "pci memory space",
+ .start = EMMA2RH_PCI_MEM_BASE,
+ .end = EMMA2RH_PCI_MEM_BASE + EMMA2RH_PCI_MEM_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+extern struct pci_ops emma2rh_pci_ops;
+
+static struct pci_controller emma2rh_pci_controller = {
+ .pci_ops = &emma2rh_pci_ops,
+ .mem_resource = &pci_mem_resource,
+ .io_resource = &pci_io_resource,
+ .mem_offset = -0x04000000,
+ .io_offset = 0,
+};
+
+static void __init emma2rh_pci_init(void)
+{
+ /* setup PCI interface */
+ emma2rh_out32(EMMA2RH_PCI_ARBIT_CTR, 0x70f);
+
+ emma2rh_out32(EMMA2RH_PCI_IWIN0_CTR, 0x80000a18);
+ emma2rh_out32(EMMA2RH_PCI_CONFIG_BASE + PCI_COMMAND,
+ PCI_STATUS_DEVSEL_MEDIUM | PCI_STATUS_CAP_LIST |
+ PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
+ emma2rh_out32(EMMA2RH_PCI_CONFIG_BASE + PCI_BASE_ADDRESS_0, 0x10000000);
+ emma2rh_out32(EMMA2RH_PCI_CONFIG_BASE + PCI_BASE_ADDRESS_1, 0x00000000);
+
+ emma2rh_out32(EMMA2RH_PCI_IWIN0_CTR, 0x12000000 | 0x218);
+ emma2rh_out32(EMMA2RH_PCI_IWIN1_CTR, 0x18000000 | 0x600);
+ emma2rh_out32(EMMA2RH_PCI_INIT_ESWP, 0x00000200);
+
+ emma2rh_out32(EMMA2RH_PCI_TWIN_CTR, 0x00009200);
+ emma2rh_out32(EMMA2RH_PCI_TWIN_BADR, 0x00000000);
+ emma2rh_out32(EMMA2RH_PCI_TWIN0_DADR, 0x00000000);
+ emma2rh_out32(EMMA2RH_PCI_TWIN1_DADR, 0x00000000);
+}
+
+static int __init emma2rh_pci_setup(void)
+{
+ emma2rh_pci_init();
+ register_pci_controller(&emma2rh_pci_controller);
+ return 0;
+}
+
+arch_initcall(emma2rh_pci_setup);