4 * Copyright (C) 2011 Renesas Solutions Corp.
5 * Copyright (C) 2011 Magnus Damm
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; version 2 of the License.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #include <linux/kernel.h>
22 #include <linux/init.h>
23 #include <linux/interrupt.h>
24 #include <linux/irq.h>
25 #include <linux/platform_device.h>
26 #include <linux/delay.h>
28 #include <linux/gpio.h>
29 #include <linux/dma-mapping.h>
30 #include <linux/smsc911x.h>
31 #include <mach/hardware.h>
32 #include <mach/r8a7779.h>
33 #include <mach/common.h>
34 #include <mach/irqs.h>
35 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
37 #include <asm/mach/map.h>
38 #include <asm/mach/time.h>
39 #include <asm/hardware/gic.h>
40 #include <asm/traps.h>
43 static struct resource smsc911x_resources[] = {
45 .start = 0x18000000, /* ExCS0 */
46 .end = 0x180000ff, /* A1->A7 */
47 .flags = IORESOURCE_MEM,
50 .start = gic_spi(28), /* IRQ 1 */
51 .flags = IORESOURCE_IRQ,
55 static struct smsc911x_platform_config smsc911x_platdata = {
56 .flags = SMSC911X_USE_32BIT, /* 32-bit SW on 16-bit HW bus */
57 .phy_interface = PHY_INTERFACE_MODE_MII,
58 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
59 .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
62 static struct platform_device eth_device = {
66 .platform_data = &smsc911x_platdata,
68 .resource = smsc911x_resources,
69 .num_resources = ARRAY_SIZE(smsc911x_resources),
72 static struct platform_device *marzen_devices[] __initdata = {
76 static struct map_desc marzen_io_desc[] __initdata = {
77 /* 2M entity map for 0xf0000000 (MPCORE) */
79 .virtual = 0xf0000000,
80 .pfn = __phys_to_pfn(0xf0000000),
82 .type = MT_DEVICE_NONSHARED
84 /* 16M entity map for 0xfexxxxxx (DMAC-S/HPBREG/INTC2/LRAM/DBSC) */
86 .virtual = 0xfe000000,
87 .pfn = __phys_to_pfn(0xfe000000),
89 .type = MT_DEVICE_NONSHARED
93 static void __init marzen_map_io(void)
95 iotable_init(marzen_io_desc, ARRAY_SIZE(marzen_io_desc));
98 static void __init marzen_init_early(void)
100 r8a7779_add_early_devices();
102 /* Early serial console setup is not included here due to
103 * memory map collisions. The SCIF serial ports in r8a7779
104 * are difficult to entity map 1:1 due to collision with the
105 * virtual memory range used by the coherent DMA code on ARM.
107 * Anyone wanting to debug early can remove UPF_IOREMAP from
108 * the sh-sci serial console platform data, adjust mapbase
109 * to a static M:N virt:phys mapping that needs to be added to
110 * the mappings passed with iotable_init() above.
112 * Then add a call to shmobile_setup_console() from this function.
114 * As a final step pass earlyprint=sh-sci.2,115200 on the kernel
119 static void __init marzen_init(void)
121 r8a7779_pinmux_init();
123 /* SCIF2 (CN18: DEBUG0) */
124 gpio_request(GPIO_FN_TX2_C, NULL);
125 gpio_request(GPIO_FN_RX2_C, NULL);
127 /* SCIF4 (CN19: DEBUG1) */
128 gpio_request(GPIO_FN_TX4, NULL);
129 gpio_request(GPIO_FN_RX4, NULL);
132 gpio_request(GPIO_FN_EX_CS0, NULL); /* nCS */
133 gpio_request(GPIO_FN_IRQ1_B, NULL); /* IRQ + PME */
135 r8a7779_add_standard_devices();
136 platform_add_devices(marzen_devices, ARRAY_SIZE(marzen_devices));
139 static void __init marzen_timer_init(void)
141 r8a7779_clock_init();
142 shmobile_timer.init();
146 struct sys_timer marzen_timer = {
147 .init = marzen_timer_init,
150 MACHINE_START(MARZEN, "marzen")
151 .map_io = marzen_map_io,
152 .init_early = marzen_init_early,
153 .nr_irqs = NR_IRQS_LEGACY,
154 .init_irq = r8a7779_init_irq,
155 .handle_irq = gic_handle_irq,
156 .init_machine = marzen_init,
157 .timer = &marzen_timer,