1 files changed, 452 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/setup-emev2.c b/arch/arm/mach-shmobile/setup-emev2.c
new file mode 100644
index 00000000000..dae9aa68bb0
--- /dev/null
+++ b/arch/arm/mach-shmobile/setup-emev2.c
@@ -0,0 +1,452 @@
+/*
+ * Emma Mobile EV2 processor support
+ *
+ * Copyright (C) 2012  Magnus Damm
+ *
+ * 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/platform_data/gpio-em.h>
+#include <linux/of_platform.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/io.h>
+#include <linux/of_irq.h>
+#include <mach/hardware.h>
+#include <mach/common.h>
+#include <mach/emev2.h>
+#include <mach/irqs.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+#include <asm/hardware/gic.h>
+
+static struct map_desc emev2_io_desc[] __initdata = {
+#ifdef CONFIG_SMP
+	/* 128K entity map for 0xe0100000 (SMU) */
+	{
+		.virtual	= 0xe0100000,
+		.pfn		= __phys_to_pfn(0xe0100000),
+		.length		= SZ_128K,
+		.type		= MT_DEVICE
+	},
+	/* 2M mapping for SCU + L2 controller */
+	{
+		.virtual	= 0xf0000000,
+		.pfn		= __phys_to_pfn(0x1e000000),
+		.length		= SZ_2M,
+		.type		= MT_DEVICE
+	},
+#endif
+};
+
+void __init emev2_map_io(void)
+{
+	iotable_init(emev2_io_desc, ARRAY_SIZE(emev2_io_desc));
+}
+
+/* UART */
+static struct resource uart0_resources[] = {
+	[0]	= {
+		.start	= 0xe1020000,
+		.end	= 0xe1020037,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1]	= {
+		.start	= 40,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+static struct platform_device uart0_device = {
+	.name		= "serial8250-em",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(uart0_resources),
+	.resource	= uart0_resources,
+};
+
+static struct resource uart1_resources[] = {
+	[0]	= {
+		.start	= 0xe1030000,
+		.end	= 0xe1030037,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1]	= {
+		.start	= 41,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+static struct platform_device uart1_device = {
+	.name		= "serial8250-em",
+	.id		= 1,
+	.num_resources	= ARRAY_SIZE(uart1_resources),
+	.resource	= uart1_resources,
+};
+
+static struct resource uart2_resources[] = {
+	[0]	= {
+		.start	= 0xe1040000,
+		.end	= 0xe1040037,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1]	= {
+		.start	= 42,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+static struct platform_device uart2_device = {
+	.name		= "serial8250-em",
+	.id		= 2,
+	.num_resources	= ARRAY_SIZE(uart2_resources),
+	.resource	= uart2_resources,
+};
+
+static struct resource uart3_resources[] = {
+	[0]	= {
+		.start	= 0xe1050000,
+		.end	= 0xe1050037,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1]	= {
+		.start	= 43,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+static struct platform_device uart3_device = {
+	.name		= "serial8250-em",
+	.id		= 3,
+	.num_resources	= ARRAY_SIZE(uart3_resources),
+	.resource	= uart3_resources,
+};
+
+/* STI */
+static struct resource sti_resources[] = {
+	[0] = {
+		.name	= "STI",
+		.start	= 0xe0180000,
+		.end	= 0xe0180053,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= 157,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device sti_device = {
+	.name		= "em_sti",
+	.id		= 0,
+	.resource	= sti_resources,
+	.num_resources	= ARRAY_SIZE(sti_resources),
+};
+
+
+/* GIO */
+static struct gpio_em_config gio0_config = {
+	.gpio_base = 0,
+	.irq_base = EMEV2_GPIO_IRQ(0),
+	.number_of_pins = 32,
+};
+
+static struct resource gio0_resources[] = {
+	[0] = {
+		.name	= "GIO_000",
+		.start	= 0xe0050000,
+		.end	= 0xe005002b,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "GIO_000",
+		.start	= 0xe0050040,
+		.end	= 0xe005005f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= 99,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= 100,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device gio0_device = {
+	.name		= "em_gio",
+	.id		= 0,
+	.resource	= gio0_resources,
+	.num_resources	= ARRAY_SIZE(gio0_resources),
+	.dev		= {
+		.platform_data	= &gio0_config,
+	},
+};
+
+static struct gpio_em_config gio1_config = {
+	.gpio_base = 32,
+	.irq_base = EMEV2_GPIO_IRQ(32),
+	.number_of_pins = 32,
+};
+
+static struct resource gio1_resources[] = {
+	[0] = {
+		.name	= "GIO_032",
+		.start	= 0xe0050080,
+		.end	= 0xe00500ab,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "GIO_032",
+		.start	= 0xe00500c0,
+		.end	= 0xe00500df,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= 101,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= 102,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device gio1_device = {
+	.name		= "em_gio",
+	.id		= 1,
+	.resource	= gio1_resources,
+	.num_resources	= ARRAY_SIZE(gio1_resources),
+	.dev		= {
+		.platform_data	= &gio1_config,
+	},
+};
+
+static struct gpio_em_config gio2_config = {
+	.gpio_base = 64,
+	.irq_base = EMEV2_GPIO_IRQ(64),
+	.number_of_pins = 32,
+};
+
+static struct resource gio2_resources[] = {
+	[0] = {
+		.name	= "GIO_064",
+		.start	= 0xe0050100,
+		.end	= 0xe005012b,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "GIO_064",
+		.start	= 0xe0050140,
+		.end	= 0xe005015f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= 103,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= 104,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device gio2_device = {
+	.name		= "em_gio",
+	.id		= 2,
+	.resource	= gio2_resources,
+	.num_resources	= ARRAY_SIZE(gio2_resources),
+	.dev		= {
+		.platform_data	= &gio2_config,
+	},
+};
+
+static struct gpio_em_config gio3_config = {
+	.gpio_base = 96,
+	.irq_base = EMEV2_GPIO_IRQ(96),
+	.number_of_pins = 32,
+};
+
+static struct resource gio3_resources[] = {
+	[0] = {
+		.name	= "GIO_096",
+		.start	= 0xe0050100,
+		.end	= 0xe005012b,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "GIO_096",
+		.start	= 0xe0050140,
+		.end	= 0xe005015f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= 105,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= 106,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device gio3_device = {
+	.name		= "em_gio",
+	.id		= 3,
+	.resource	= gio3_resources,
+	.num_resources	= ARRAY_SIZE(gio3_resources),
+	.dev		= {
+		.platform_data	= &gio3_config,
+	},
+};
+
+static struct gpio_em_config gio4_config = {
+	.gpio_base = 128,
+	.irq_base = EMEV2_GPIO_IRQ(128),
+	.number_of_pins = 31,
+};
+
+static struct resource gio4_resources[] = {
+	[0] = {
+		.name	= "GIO_128",
+		.start	= 0xe0050200,
+		.end	= 0xe005022b,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "GIO_128",
+		.start	= 0xe0050240,
+		.end	= 0xe005025f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= 107,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= 108,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device gio4_device = {
+	.name		= "em_gio",
+	.id		= 4,
+	.resource	= gio4_resources,
+	.num_resources	= ARRAY_SIZE(gio4_resources),
+	.dev		= {
+		.platform_data	= &gio4_config,
+	},
+};
+
+static struct platform_device *emev2_early_devices[] __initdata = {
+	&uart0_device,
+	&uart1_device,
+	&uart2_device,
+	&uart3_device,
+};
+
+static struct platform_device *emev2_late_devices[] __initdata = {
+	&sti_device,
+	&gio0_device,
+	&gio1_device,
+	&gio2_device,
+	&gio3_device,
+	&gio4_device,
+};
+
+void __init emev2_add_standard_devices(void)
+{
+	emev2_clock_init();
+
+	platform_add_devices(emev2_early_devices,
+			     ARRAY_SIZE(emev2_early_devices));
+
+	platform_add_devices(emev2_late_devices,
+			     ARRAY_SIZE(emev2_late_devices));
+}
+
+void __init emev2_init_delay(void)
+{
+	shmobile_setup_delay(533, 1, 3); /* Cortex-A9 @ 533MHz */
+}
+
+void __init emev2_add_early_devices(void)
+{
+	emev2_init_delay();
+
+	early_platform_add_devices(emev2_early_devices,
+				   ARRAY_SIZE(emev2_early_devices));
+
+	/* setup early console here as well */
+	shmobile_setup_console();
+}
+
+void __init emev2_init_irq(void)
+{
+	void __iomem *gic_dist_base;
+	void __iomem *gic_cpu_base;
+
+	/* Static mappings, never released */
+	gic_dist_base = ioremap(0xe0028000, PAGE_SIZE);
+	gic_cpu_base = ioremap(0xe0020000, PAGE_SIZE);
+	BUG_ON(!gic_dist_base || !gic_cpu_base);
+
+	/* Use GIC to handle interrupts */
+	gic_init(0, 29, gic_dist_base, gic_cpu_base);
+}
+
+#ifdef CONFIG_USE_OF
+static const struct of_dev_auxdata emev2_auxdata_lookup[] __initconst = {
+	{ }
+};
+
+void __init emev2_add_standard_devices_dt(void)
+{
+	of_platform_populate(NULL, of_default_bus_match_table,
+			     emev2_auxdata_lookup, NULL);
+}
+
+static const struct of_device_id emev2_dt_irq_match[] = {
+	{ .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
+	{},
+};
+
+static const char *emev2_boards_compat_dt[] __initdata = {
+	"renesas,emev2",
+	NULL,
+};
+
+void __init emev2_init_irq_dt(void)
+{
+	of_irq_init(emev2_dt_irq_match);
+}
+
+DT_MACHINE_START(EMEV2_DT, "Generic Emma Mobile EV2 (Flattened Device Tree)")
+	.init_early	= emev2_init_delay,
+	.nr_irqs	= NR_IRQS_LEGACY,
+	.init_irq	= emev2_init_irq_dt,
+	.handle_irq	= gic_handle_irq,
+	.init_machine	= emev2_add_standard_devices_dt,
+	.timer		= &shmobile_timer,
+	.dt_compat	= emev2_boards_compat_dt,
+MACHINE_END
+
+#endif /* CONFIG_USE_OF */