mirror of https://gitee.com/openkylin/linux.git
149 lines
3.3 KiB
C
149 lines
3.3 KiB
C
/*
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* linux/arch/arm/mach-mx1/mach-scb9328.c
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*
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* Copyright (c) 2004 Sascha Hauer <saschahauer@web.de>
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* Copyright (c) 2006-2008 Juergen Beisert <jbeisert@netscape.net>
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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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*/
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#include <linux/platform_device.h>
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#include <linux/mtd/physmap.h>
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#include <linux/interrupt.h>
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#include <linux/dm9000.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/time.h>
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#include "common.h"
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#include "devices-imx1.h"
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#include "hardware.h"
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#include "iomux-mx1.h"
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/*
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* This scb9328 has a 32MiB flash
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*/
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static struct resource flash_resource = {
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.start = MX1_CS0_PHYS,
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.end = MX1_CS0_PHYS + (32 * 1024 * 1024) - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct physmap_flash_data scb_flash_data = {
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.width = 2,
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};
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static struct platform_device scb_flash_device = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &scb_flash_data,
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},
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.resource = &flash_resource,
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.num_resources = 1,
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};
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/*
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* scb9328 has a DM9000 network controller
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* connected to CS5, with 16 bit data path
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* and interrupt connected to GPIO 3
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*/
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/*
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* internal datapath is fixed 16 bit
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*/
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static struct dm9000_plat_data dm9000_platdata = {
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.flags = DM9000_PLATF_16BITONLY,
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};
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/*
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* the DM9000 drivers wants two defined address spaces
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* to gain access to address latch registers and the data path.
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*/
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static struct resource dm9000x_resources[] = {
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{
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.name = "address area",
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.start = MX1_CS5_PHYS,
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.end = MX1_CS5_PHYS + 1,
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.flags = IORESOURCE_MEM, /* address access */
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}, {
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.name = "data area",
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.start = MX1_CS5_PHYS + 4,
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.end = MX1_CS5_PHYS + 5,
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.flags = IORESOURCE_MEM, /* data access */
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}, {
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/* irq number is run-time assigned */
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
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},
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};
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static struct platform_device dm9000x_device = {
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.name = "dm9000",
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.id = 0,
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.num_resources = ARRAY_SIZE(dm9000x_resources),
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.resource = dm9000x_resources,
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.dev = {
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.platform_data = &dm9000_platdata,
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}
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};
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static const int mxc_uart1_pins[] = {
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PC9_PF_UART1_CTS,
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PC10_PF_UART1_RTS,
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PC11_PF_UART1_TXD,
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PC12_PF_UART1_RXD,
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};
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static const struct imxuart_platform_data uart_pdata __initconst = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static struct platform_device *devices[] __initdata = {
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&scb_flash_device,
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&dm9000x_device,
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};
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/*
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* scb9328_init - Init the CPU card itself
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*/
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static void __init scb9328_init(void)
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{
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imx1_soc_init();
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mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
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ARRAY_SIZE(mxc_uart1_pins), "UART1");
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imx1_add_imx_uart0(&uart_pdata);
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printk(KERN_INFO"Scb9328: Adding devices\n");
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dm9000x_resources[2].start = gpio_to_irq(IMX_GPIO_NR(3, 3));
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dm9000x_resources[2].end = gpio_to_irq(IMX_GPIO_NR(3, 3));
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platform_add_devices(devices, ARRAY_SIZE(devices));
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}
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static void __init scb9328_timer_init(void)
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{
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mx1_clocks_init(32000);
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}
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static struct sys_timer scb9328_timer = {
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.init = scb9328_timer_init,
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};
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MACHINE_START(SCB9328, "Synertronixx scb9328")
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/* Sascha Hauer */
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.atag_offset = 100,
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.map_io = mx1_map_io,
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.init_early = imx1_init_early,
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.init_irq = mx1_init_irq,
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.handle_irq = imx1_handle_irq,
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.timer = &scb9328_timer,
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.init_machine = scb9328_init,
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.restart = mxc_restart,
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MACHINE_END
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