zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/arch/arm/mach-iop13xx/io.c b/ap/os/linux/linux-3.4.x/arch/arm/mach-iop13xx/io.c
new file mode 100644
index 0000000..3c36419
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/arch/arm/mach-iop13xx/io.c
@@ -0,0 +1,117 @@
+/*
+ * iop13xx custom ioremap implementation
+ * Copyright (c) 2005-2006, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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/module.h>
+#include <linux/io.h>
+#include <mach/hardware.h>
+
+#include "pci.h"
+
+void * __iomem __iop13xx_io(unsigned long io_addr)
+{
+ void __iomem * io_virt;
+
+ switch (io_addr) {
+ case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA:
+ io_virt = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(io_addr);
+ break;
+ case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA:
+ io_virt = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(io_addr);
+ break;
+ default:
+ BUG();
+ }
+
+ return io_virt;
+}
+EXPORT_SYMBOL(__iop13xx_io);
+
+static void __iomem *__iop13xx_ioremap_caller(unsigned long cookie,
+ size_t size, unsigned int mtype, void *caller)
+{
+ void __iomem * retval;
+
+ switch (cookie) {
+ case IOP13XX_PCIX_LOWER_MEM_RA ... IOP13XX_PCIX_UPPER_MEM_RA:
+ if (unlikely(!iop13xx_atux_mem_base))
+ retval = NULL;
+ else
+ retval = (void *)(iop13xx_atux_mem_base +
+ (cookie - IOP13XX_PCIX_LOWER_MEM_RA));
+ break;
+ case IOP13XX_PCIE_LOWER_MEM_RA ... IOP13XX_PCIE_UPPER_MEM_RA:
+ if (unlikely(!iop13xx_atue_mem_base))
+ retval = NULL;
+ else
+ retval = (void *)(iop13xx_atue_mem_base +
+ (cookie - IOP13XX_PCIE_LOWER_MEM_RA));
+ break;
+ case IOP13XX_PBI_LOWER_MEM_RA ... IOP13XX_PBI_UPPER_MEM_RA:
+ retval = __arm_ioremap_caller(IOP13XX_PBI_LOWER_MEM_PA +
+ (cookie - IOP13XX_PBI_LOWER_MEM_RA),
+ size, mtype, __builtin_return_address(0));
+ break;
+ case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA:
+ retval = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(cookie);
+ break;
+ case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA:
+ retval = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(cookie);
+ break;
+ case IOP13XX_PMMR_PHYS_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_PA:
+ retval = (void *) IOP13XX_PMMR_PHYS_TO_VIRT(cookie);
+ break;
+ default:
+ retval = __arm_ioremap_caller(cookie, size, mtype,
+ caller);
+ }
+
+ return retval;
+}
+
+static void __iop13xx_iounmap(volatile void __iomem *addr)
+{
+ if (iop13xx_atue_mem_base)
+ if (addr >= (void __iomem *) iop13xx_atue_mem_base &&
+ addr < (void __iomem *) (iop13xx_atue_mem_base +
+ iop13xx_atue_mem_size))
+ goto skip;
+
+ if (iop13xx_atux_mem_base)
+ if (addr >= (void __iomem *) iop13xx_atux_mem_base &&
+ addr < (void __iomem *) (iop13xx_atux_mem_base +
+ iop13xx_atux_mem_size))
+ goto skip;
+
+ switch ((u32) addr) {
+ case IOP13XX_PCIE_LOWER_IO_VA ... IOP13XX_PCIE_UPPER_IO_VA:
+ case IOP13XX_PCIX_LOWER_IO_VA ... IOP13XX_PCIX_UPPER_IO_VA:
+ case IOP13XX_PMMR_VIRT_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_VA:
+ goto skip;
+ }
+ __iounmap(addr);
+
+skip:
+ return;
+}
+
+void __init iop13xx_init_early(void)
+{
+ arch_ioremap_caller = __iop13xx_ioremap_caller;
+ arch_iounmap = __iop13xx_iounmap;
+}