mirror of https://gitee.com/openkylin/linux.git
158 lines
4.2 KiB
C
158 lines
4.2 KiB
C
/*
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* marzen board support
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*
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* Copyright (C) 2011 Renesas Solutions Corp.
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* Copyright (C) 2011 Magnus Damm
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/io.h>
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#include <linux/gpio.h>
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#include <linux/dma-mapping.h>
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#include <linux/smsc911x.h>
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#include <mach/hardware.h>
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#include <mach/r8a7779.h>
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#include <mach/common.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/time.h>
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#include <asm/hardware/gic.h>
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#include <asm/traps.h>
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/* SMSC LAN89218 */
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static struct resource smsc911x_resources[] = {
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[0] = {
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.start = 0x18000000, /* ExCS0 */
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.end = 0x180000ff, /* A1->A7 */
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = gic_spi(28), /* IRQ 1 */
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct smsc911x_platform_config smsc911x_platdata = {
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.flags = SMSC911X_USE_32BIT, /* 32-bit SW on 16-bit HW bus */
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.phy_interface = PHY_INTERFACE_MODE_MII,
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
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.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
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};
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static struct platform_device eth_device = {
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.name = "smsc911x",
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.id = 0,
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.dev = {
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.platform_data = &smsc911x_platdata,
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},
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.resource = smsc911x_resources,
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.num_resources = ARRAY_SIZE(smsc911x_resources),
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};
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static struct platform_device *marzen_devices[] __initdata = {
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ð_device,
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};
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static struct map_desc marzen_io_desc[] __initdata = {
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/* 2M entity map for 0xf0000000 (MPCORE) */
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{
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.virtual = 0xf0000000,
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.pfn = __phys_to_pfn(0xf0000000),
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.length = SZ_2M,
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.type = MT_DEVICE_NONSHARED
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},
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/* 16M entity map for 0xfexxxxxx (DMAC-S/HPBREG/INTC2/LRAM/DBSC) */
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{
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.virtual = 0xfe000000,
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.pfn = __phys_to_pfn(0xfe000000),
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.length = SZ_16M,
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.type = MT_DEVICE_NONSHARED
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},
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};
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static void __init marzen_map_io(void)
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{
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iotable_init(marzen_io_desc, ARRAY_SIZE(marzen_io_desc));
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}
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static void __init marzen_init_early(void)
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{
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r8a7779_add_early_devices();
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/* Early serial console setup is not included here due to
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* memory map collisions. The SCIF serial ports in r8a7779
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* are difficult to entity map 1:1 due to collision with the
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* virtual memory range used by the coherent DMA code on ARM.
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*
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* Anyone wanting to debug early can remove UPF_IOREMAP from
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* the sh-sci serial console platform data, adjust mapbase
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* to a static M:N virt:phys mapping that needs to be added to
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* the mappings passed with iotable_init() above.
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*
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* Then add a call to shmobile_setup_console() from this function.
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*
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* As a final step pass earlyprint=sh-sci.2,115200 on the kernel
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* command line.
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*/
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}
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static void __init marzen_init(void)
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{
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r8a7779_pinmux_init();
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/* SCIF2 (CN18: DEBUG0) */
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gpio_request(GPIO_FN_TX2_C, NULL);
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gpio_request(GPIO_FN_RX2_C, NULL);
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/* SCIF4 (CN19: DEBUG1) */
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gpio_request(GPIO_FN_TX4, NULL);
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gpio_request(GPIO_FN_RX4, NULL);
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/* LAN89218 */
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gpio_request(GPIO_FN_EX_CS0, NULL); /* nCS */
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gpio_request(GPIO_FN_IRQ1_B, NULL); /* IRQ + PME */
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r8a7779_add_standard_devices();
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platform_add_devices(marzen_devices, ARRAY_SIZE(marzen_devices));
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}
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static void __init marzen_timer_init(void)
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{
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r8a7779_clock_init();
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shmobile_timer.init();
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return;
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}
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struct sys_timer marzen_timer = {
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.init = marzen_timer_init,
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};
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MACHINE_START(MARZEN, "marzen")
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.map_io = marzen_map_io,
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.init_early = marzen_init_early,
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.nr_irqs = NR_IRQS_LEGACY,
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.init_irq = r8a7779_init_irq,
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.handle_irq = gic_handle_irq,
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.init_machine = marzen_init,
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.timer = &marzen_timer,
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MACHINE_END
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