[MIPS] Support for the R5500-based NEC EMMA2RH Mark-eins board

Signed-off-by: dmitry pervushin  <dpervushin@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 90 insertions, 0 deletions

diff --git a/arch/mips/pci/pci-emma2rh.c b/arch/mips/pci/pci-emma2rh.c
new file mode 100644
index 000000000000..0f8b230057d3
--- /dev/null
+++ b/arch/mips/pci/pci-emma2rh.c
@@ -0,0 +1,90 @@
+/*
+ *  arch/mips/pci/pci-emma2rh.c
+ *      This file defines the PCI configration.
+ *
+ *  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/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+
+#include <asm/bootinfo.h>
+#include <asm/debug.h>
+
+#include <asm/emma2rh/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);