board-marzen.c
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/*
* marzen board support
*
* Copyright (C) 2011 Renesas Solutions Corp.
* Copyright (C) 2011 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/io.h>
#include <linux/gpio.h>
#include <linux/dma-mapping.h>
#include <linux/smsc911x.h>
#include <mach/hardware.h>
#include <mach/r8a7779.h>
#include <mach/common.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>
#include <asm/traps.h>
/* SMSC LAN89218 */
static struct resource smsc911x_resources[] = {
[0] = {
.start = 0x18000000, /* ExCS0 */
.end = 0x180000ff, /* A1->A7 */
.flags = IORESOURCE_MEM,
},
[1] = {
.start = gic_spi(28), /* IRQ 1 */
.flags = IORESOURCE_IRQ,
},
};
static struct smsc911x_platform_config smsc911x_platdata = {
.flags = SMSC911X_USE_32BIT, /* 32-bit SW on 16-bit HW bus */
.phy_interface = PHY_INTERFACE_MODE_MII,
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
};
static struct platform_device eth_device = {
.name = "smsc911x",
.id = 0,
.dev = {
.platform_data = &smsc911x_platdata,
},
.resource = smsc911x_resources,
.num_resources = ARRAY_SIZE(smsc911x_resources),
};
static struct platform_device *marzen_devices[] __initdata = {
ð_device,
};
static struct map_desc marzen_io_desc[] __initdata = {
/* 2M entity map for 0xf0000000 (MPCORE) */
{
.virtual = 0xf0000000,
.pfn = __phys_to_pfn(0xf0000000),
.length = SZ_2M,
.type = MT_DEVICE_NONSHARED
},
/* 16M entity map for 0xfexxxxxx (DMAC-S/HPBREG/INTC2/LRAM/DBSC) */
{
.virtual = 0xfe000000,
.pfn = __phys_to_pfn(0xfe000000),
.length = SZ_16M,
.type = MT_DEVICE_NONSHARED
},
};
static void __init marzen_map_io(void)
{
iotable_init(marzen_io_desc, ARRAY_SIZE(marzen_io_desc));
}
static void __init marzen_init_early(void)
{
r8a7779_add_early_devices();
/* Early serial console setup is not included here due to
* memory map collisions. The SCIF serial ports in r8a7779
* are difficult to entity map 1:1 due to collision with the
* virtual memory range used by the coherent DMA code on ARM.
*
* Anyone wanting to debug early can remove UPF_IOREMAP from
* the sh-sci serial console platform data, adjust mapbase
* to a static M:N virt:phys mapping that needs to be added to
* the mappings passed with iotable_init() above.
*
* Then add a call to shmobile_setup_console() from this function.
*
* As a final step pass earlyprint=sh-sci.2,115200 on the kernel
* command line.
*/
}
static void __init marzen_init(void)
{
r8a7779_pinmux_init();
/* SCIF2 (CN18: DEBUG0) */
gpio_request(GPIO_FN_TX2_C, NULL);
gpio_request(GPIO_FN_RX2_C, NULL);
/* SCIF4 (CN19: DEBUG1) */
gpio_request(GPIO_FN_TX4, NULL);
gpio_request(GPIO_FN_RX4, NULL);
/* LAN89218 */
gpio_request(GPIO_FN_EX_CS0, NULL); /* nCS */
gpio_request(GPIO_FN_IRQ1_B, NULL); /* IRQ + PME */
r8a7779_add_standard_devices();
platform_add_devices(marzen_devices, ARRAY_SIZE(marzen_devices));
}
static void __init marzen_timer_init(void)
{
r8a7779_clock_init();
shmobile_timer.init();
return;
}
struct sys_timer marzen_timer = {
.init = marzen_timer_init,
};
MACHINE_START(MARZEN, "marzen")
.map_io = marzen_map_io,
.init_early = marzen_init_early,
.nr_irqs = NR_IRQS_LEGACY,
.init_irq = r8a7779_init_irq,
.handle_irq = gic_handle_irq,
.init_machine = marzen_init,
.timer = &marzen_timer,
MACHINE_END