[ARM] tegra: initial tegra support
v2: Fixes from Mike Rapoport
- remove unused header files (mach/dma.h and mach/nand.h)
- remove tegra 1 references from Makefile.boot
v2: fixes from Russell King
- remove mach/io.h include from mach/iomap.h
- fix whitespace in Kconfig
v2: from Colin Cross
- fix invalid immediate in debug-macro.S
v3:
- allow selection of multiple boards
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Erik Gilling <konkers@android.com>
diff --git a/arch/arm/mach-tegra/io.c b/arch/arm/mach-tegra/io.c
new file mode 100644
index 0000000..9fe2c5c
--- /dev/null
+++ b/arch/arm/mach-tegra/io.c
@@ -0,0 +1,78 @@
+/*
+ * arch/arm/mach-tegra/io.c
+ *
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * Author:
+ * Colin Cross <ccross@google.com>
+ * Erik Gilling <konkers@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+#include <asm/page.h>
+#include <asm/mach/map.h>
+
+#include "board.h"
+
+static struct map_desc tegra_io_desc[] __initdata = {
+ {
+ .virtual = IO_PPSB_VIRT,
+ .pfn = __phys_to_pfn(IO_PPSB_PHYS),
+ .length = IO_PPSB_SIZE,
+ .type = MT_DEVICE,
+ },
+ {
+ .virtual = IO_APB_VIRT,
+ .pfn = __phys_to_pfn(IO_APB_PHYS),
+ .length = IO_APB_SIZE,
+ .type = MT_DEVICE,
+ },
+ {
+ .virtual = IO_CPU_VIRT,
+ .pfn = __phys_to_pfn(IO_CPU_PHYS),
+ .length = IO_CPU_SIZE,
+ .type = MT_DEVICE,
+ },
+};
+
+void __init tegra_map_common_io(void)
+{
+ iotable_init(tegra_io_desc, ARRAY_SIZE(tegra_io_desc));
+}
+
+/*
+ * Intercept ioremap() requests for addresses in our fixed mapping regions.
+ */
+void __iomem *tegra_ioremap(unsigned long p, size_t size, unsigned int type)
+{
+ void __iomem *v = IO_ADDRESS(p);
+ if (v == NULL)
+ v = __arm_ioremap(p, size, type);
+ return v;
+}
+EXPORT_SYMBOL(tegra_ioremap);
+
+void tegra_iounmap(volatile void __iomem *addr)
+{
+ unsigned long virt = (unsigned long)addr;
+
+ if (virt >= VMALLOC_START && virt < VMALLOC_END)
+ __iounmap(addr);
+}
+EXPORT_SYMBOL(tegra_iounmap);