mirror of https://gitee.com/openkylin/linux.git
112 lines
2.8 KiB
C
112 lines
2.8 KiB
C
/*
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* linux/arch/arm/mach-nomadik/board-8815nhk.c
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*
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* Copyright (C) STMicroelectronics
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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 version 2, as
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* published by the Free Software Foundation.
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*
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* NHK15 board specifc driver definition
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/amba/bus.h>
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#include <linux/interrupt.h>
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#include <linux/gpio.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/irq.h>
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#include <mach/setup.h>
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#include "clock.h"
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#define __MEM_4K_RESOURCE(x) \
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.res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM}
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static struct amba_device uart0_device = {
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.dev = { .init_name = "uart0" },
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__MEM_4K_RESOURCE(NOMADIK_UART0_BASE),
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.irq = {IRQ_UART0, NO_IRQ},
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};
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static struct amba_device uart1_device = {
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.dev = { .init_name = "uart1" },
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__MEM_4K_RESOURCE(NOMADIK_UART1_BASE),
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.irq = {IRQ_UART1, NO_IRQ},
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};
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static struct amba_device *amba_devs[] __initdata = {
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&uart0_device,
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&uart1_device,
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};
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/* We have a fixed clock alone, by now */
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static struct clk nhk8815_clk_48 = {
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.rate = 48*1000*1000,
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};
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static struct resource nhk8815_eth_resources[] = {
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{
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.name = "smc91x-regs",
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.start = 0x34000000 + 0x300,
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.end = 0x34000000 + SZ_64K - 1,
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.flags = IORESOURCE_MEM,
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}, {
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.start = NOMADIK_GPIO_TO_IRQ(115),
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.end = NOMADIK_GPIO_TO_IRQ(115),
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.flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
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}
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};
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static struct platform_device nhk8815_eth_device = {
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.name = "smc91x",
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.resource = nhk8815_eth_resources,
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.num_resources = ARRAY_SIZE(nhk8815_eth_resources),
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};
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static int __init nhk8815_eth_init(void)
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{
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int gpio_nr = 115; /* hardwired in the board */
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int err;
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err = gpio_request(gpio_nr, "eth_irq");
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if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
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if (!err) err = gpio_direction_input(gpio_nr);
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if (err)
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pr_err("Error %i in %s\n", err, __func__);
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return err;
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}
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device_initcall(nhk8815_eth_init);
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static struct platform_device *nhk8815_platform_devices[] __initdata = {
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&nhk8815_eth_device,
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/* will add more devices */
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};
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static void __init nhk8815_platform_init(void)
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{
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int i;
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cpu8815_platform_init();
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platform_add_devices(nhk8815_platform_devices,
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ARRAY_SIZE(nhk8815_platform_devices));
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for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
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nmdk_clk_create(&nhk8815_clk_48, amba_devs[i]->dev.init_name);
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amba_device_register(amba_devs[i], &iomem_resource);
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}
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}
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MACHINE_START(NOMADIK, "NHK8815")
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/* Maintainer: ST MicroElectronics */
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.phys_io = NOMADIK_UART0_BASE,
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.io_pg_offst = (IO_ADDRESS(NOMADIK_UART0_BASE) >> 18) & 0xfffc,
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.boot_params = 0x100,
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.map_io = cpu8815_map_io,
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.init_irq = cpu8815_init_irq,
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.timer = &nomadik_timer,
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.init_machine = nhk8815_platform_init,
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MACHINE_END
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