[MIPS] New files for lemote fulong mini-PC support
Signed-off-by: Fuxin Zhang <zhangfx@lemote.com>
Signed-off-by: Songmao Tian <tiansm@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/lemote/lm2e/pci.c b/arch/mips/lemote/lm2e/pci.c
new file mode 100644
index 0000000..1ade1ce
--- /dev/null
+++ b/arch/mips/lemote/lm2e/pci.c
@@ -0,0 +1,93 @@
+/*
+ * pci.c
+ *
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@lemote.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/mips-boards/bonito64.h>
+
+extern struct pci_ops bonito64_pci_ops;
+
+static struct resource loongson2e_pci_mem_resource = {
+ .name = "LOONGSON2E PCI MEM",
+ .start = 0x14000000UL,
+ .end = 0x1fffffffUL,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct resource loongson2e_pci_io_resource = {
+ .name = "LOONGSON2E PCI IO MEM",
+ .start = 0x00004000UL,
+ .end = IO_SPACE_LIMIT,
+ .flags = IORESOURCE_IO,
+};
+
+static struct pci_controller loongson2e_pci_controller = {
+ .pci_ops = &bonito64_pci_ops,
+ .io_resource = &loongson2e_pci_io_resource,
+ .mem_resource = &loongson2e_pci_mem_resource,
+ .mem_offset = 0x00000000UL,
+ .io_offset = 0x00000000UL,
+};
+
+static void __init ict_pcimap(void)
+{
+ /*
+ * local to PCI mapping: [256M,512M] -> [256M,512M]; differ from PMON
+ *
+ * CPU address space [256M,448M] is window for accessing pci space
+ * we set pcimap_lo[0,1,2] to map it to pci space [256M,448M]
+ * pcimap: bit18,pcimap_2; bit[17-12],lo2;bit[11-6],lo1;bit[5-0],lo0
+ */
+ /* 1,00 0110 ,0001 01,00 0000 */
+ BONITO_PCIMAP = 0x46140;
+
+ /* 1, 00 0010, 0000,01, 00 0000 */
+ /* BONITO_PCIMAP = 0x42040; */
+
+ /*
+ * PCI to local mapping: [2G,2G+256M] -> [0,256M]
+ */
+ BONITO_PCIBASE0 = 0x80000000;
+ BONITO_PCIBASE1 = 0x00800000;
+ BONITO_PCIBASE2 = 0x90000000;
+
+}
+
+static int __init pcibios_init(void)
+{
+ extern int pci_probe_only;
+ pci_probe_only = 0;
+
+ ict_pcimap();
+ register_pci_controller(&loongson2e_pci_controller);
+
+ return 0;
+}
+
+arch_initcall(pcibios_init);