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-rw-r--r--arch/arm/mach-mxc91231/mm.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/arch/arm/mach-mxc91231/mm.c b/arch/arm/mach-mxc91231/mm.c
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+++ b/arch/arm/mach-mxc91231/mm.c
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+/*
+ * Copyright (C) 1999,2000 Arm Limited
+ * Copyright (C) 2000 Deep Blue Solutions Ltd
+ * Copyright (C) 2002 Shane Nay (shane@minirl.com)
+ * Copyright 2004-2005 Freescale Semiconductor, Inc. All Rights Reserved.
+ * - add MXC specific definitions
+ * Copyright 2006 Motorola, 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/mm.h>
+#include <linux/init.h>
+#include <mach/hardware.h>
+#include <mach/common.h>
+#include <asm/pgtable.h>
+#include <asm/mach/map.h>
+
+/*
+ * This structure defines the MXC memory map.
+ */
+static struct map_desc mxc_io_desc[] __initdata = {
+ {
+ .virtual = MXC91231_L2CC_BASE_ADDR_VIRT,
+ .pfn = __phys_to_pfn(MXC91231_L2CC_BASE_ADDR),
+ .length = MXC91231_L2CC_SIZE,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = MXC91231_X_MEMC_BASE_ADDR_VIRT,
+ .pfn = __phys_to_pfn(MXC91231_X_MEMC_BASE_ADDR),
+ .length = MXC91231_X_MEMC_SIZE,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = MXC91231_ROMP_BASE_ADDR_VIRT,
+ .pfn = __phys_to_pfn(MXC91231_ROMP_BASE_ADDR),
+ .length = MXC91231_ROMP_SIZE,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = MXC91231_AVIC_BASE_ADDR_VIRT,
+ .pfn = __phys_to_pfn(MXC91231_AVIC_BASE_ADDR),
+ .length = MXC91231_AVIC_SIZE,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = MXC91231_AIPS1_BASE_ADDR_VIRT,
+ .pfn = __phys_to_pfn(MXC91231_AIPS1_BASE_ADDR),
+ .length = MXC91231_AIPS1_SIZE,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = MXC91231_SPBA0_BASE_ADDR_VIRT,
+ .pfn = __phys_to_pfn(MXC91231_SPBA0_BASE_ADDR),
+ .length = MXC91231_SPBA0_SIZE,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = MXC91231_SPBA1_BASE_ADDR_VIRT,
+ .pfn = __phys_to_pfn(MXC91231_SPBA1_BASE_ADDR),
+ .length = MXC91231_SPBA1_SIZE,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = MXC91231_AIPS2_BASE_ADDR_VIRT,
+ .pfn = __phys_to_pfn(MXC91231_AIPS2_BASE_ADDR),
+ .length = MXC91231_AIPS2_SIZE,
+ .type = MT_DEVICE,
+ },
+};
+
+/*
+ * This function initializes the memory map. It is called during the
+ * system startup to create static physical to virtual memory map for
+ * the IO modules.
+ */
+void __init mxc91231_map_io(void)
+{
+ mxc_set_cpu_type(MXC_CPU_MXC91231);
+
+ iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc));
+}
+
+void __init mxc91231_init_irq(void)
+{
+ mxc_init_irq(MXC91231_IO_ADDRESS(MXC91231_AVIC_BASE_ADDR));
+}