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/*
* 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/delay.h>
#include <linux/input.h>
#include <linux/io.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),
};
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,
};
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_add_early_devices(void)
{
shmobile_setup_delay(533, 1, 3); /* Cortex-A9 @ 533MHz */
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);
}
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