ARM: mach-shmobile: SH-Mobile G4 support.

This adds preliminary support for the SH7377 (SH-Mobile G4) CPU and
the G4EVM reference board.

Only timer, serial console and NOR flash are supported at this point.
Support for the interrupt controller, pinmux support, clock framework
and runtime pm will be submitted as feature patches on top of this.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 127 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/board-g4evm.c b/arch/arm/mach-shmobile/board-g4evm.c
new file mode 100644
index 000000000000..0d2948f17766
--- /dev/null
+++ b/arch/arm/mach-shmobile/board-g4evm.c
@@ -0,0 +1,127 @@
+/*
+ * G4EVM board support
+ *
+ * Copyright (C) 2010  Magnus Damm
+ * Copyright (C) 2008  Yoshihiro Shimoda
+ *
+ * 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; version 2 of the License.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/io.h>
+#include <mach/common.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+static struct mtd_partition nor_flash_partitions[] = {
+        {
+                .name           = "loader",
+                .offset         = 0x00000000,
+                .size           = 512 * 1024,
+        },
+        {
+                .name           = "bootenv",
+                .offset         = MTDPART_OFS_APPEND,
+                .size           = 512 * 1024,
+        },
+        {
+                .name           = "kernel_ro",
+                .offset         = MTDPART_OFS_APPEND,
+                .size           = 8 * 1024 * 1024,
+                .mask_flags     = MTD_WRITEABLE,
+        },
+        {
+                .name           = "kernel",
+                .offset         = MTDPART_OFS_APPEND,
+                .size           = 8 * 1024 * 1024,
+        },
+        {
+                .name           = "data",
+                .offset         = MTDPART_OFS_APPEND,
+                .size           = MTDPART_SIZ_FULL,
+        },
+};
+
+static struct physmap_flash_data nor_flash_data = {
+        .width          = 2,
+        .parts          = nor_flash_partitions,
+        .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
+};
+
+static struct resource nor_flash_resources[] = {
+        [0]     = {
+                .start  = 0x00000000,
+                .end    = 0x08000000 - 1,
+                .flags  = IORESOURCE_MEM,
+        }
+};
+
+static struct platform_device nor_flash_device = {
+        .name           = "physmap-flash",
+        .dev            = {
+                .platform_data  = &nor_flash_data,
+        },
+        .num_resources  = ARRAY_SIZE(nor_flash_resources),
+        .resource       = nor_flash_resources,
+};
+
+
+static struct platform_device *g4evm_devices[] __initdata = {
+        &nor_flash_device,
+};
+
+static struct map_desc g4evm_io_desc[] __initdata = {
+        /* create a 1:1 entity map for 0xe6xxxxxx
+         * used by CPGA, INTC and PFC.
+         */
+        {
+                .virtual        = 0xe6000000,
+                .pfn            = __phys_to_pfn(0xe6000000),
+                .length         = 256 << 20,
+                .type           = MT_DEVICE_NONSHARED
+        },
+};
+
+static void __init g4evm_map_io(void)
+{
+        iotable_init(g4evm_io_desc, ARRAY_SIZE(g4evm_io_desc));
+
+        /* setup early devices and clocks here as well */
+        sh7377_add_early_devices();
+        sh7367_clock_init(); /* use g3 clocks for now */
+}
+
+static void __init g4evm_init(void)
+{
+        sh7377_add_standard_devices();
+
+        platform_add_devices(g4evm_devices, ARRAY_SIZE(g4evm_devices));
+}
+
+MACHINE_START(G4EVM, "g4evm")
+        .phys_io        = 0xe6000000,
+        .io_pg_offst    = ((0xe6000000) >> 18) & 0xfffc,
+        .map_io         = g4evm_map_io,
+        .init_irq       = sh7377_init_irq,
+        .init_machine   = g4evm_init,
+        .timer          = &shmobile_timer,
+MACHINE_END