linux-zen-server/arch/sh/boards/mach-se/7343/setup.c

// SPDX-License-Identifier: GPL-2.0
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/serial_8250.h>
#include <linux/serial_reg.h>
#include <linux/usb/isp116x.h>
#include <linux/delay.h>
#include <linux/irqdomain.h>
#include <asm/machvec.h>
#include <mach-se/mach/se7343.h>
#include <asm/heartbeat.h>
#include <asm/irq.h>
#include <asm/io.h>

static struct resource heartbeat_resource = {
	.start	= PA_LED,
	.end	= PA_LED,
	.flags	= IORESOURCE_MEM | IORESOURCE_MEM_16BIT,
};

static struct platform_device heartbeat_device = {
	.name		= "heartbeat",
	.id		= -1,
	.num_resources	= 1,
	.resource	= &heartbeat_resource,
};

static struct mtd_partition nor_flash_partitions[] = {
	{
		.name		= "loader",
		.offset		= 0x00000000,
		.size		= 128 * 1024,
	},
	{
		.name		= "rootfs",
		.offset		= MTDPART_OFS_APPEND,
		.size		= 31 * 1024 * 1024,
	},
	{
		.name		= "data",
		.offset		= MTDPART_OFS_APPEND,
		.size		= MTDPART_SIZ_FULL,
	},
};

static struct physmap_flash_data nor_flash_data = {
	.width		= 2,
	.parts		= nor_flash_partitions,
	.nr_parts	= ARRAY_SIZE(nor_flash_partitions),
};

static struct resource nor_flash_resources[] = {
	[0]	= {
		.start	= 0x00000000,
		.end	= 0x01ffffff,
		.flags	= IORESOURCE_MEM,
	}
};

static struct platform_device nor_flash_device = {
	.name		= "physmap-flash",
	.dev		= {
		.platform_data	= &nor_flash_data,
	},
	.num_resources	= ARRAY_SIZE(nor_flash_resources),
	.resource	= nor_flash_resources,
};

#define ST16C2550C_FLAGS (UPF_BOOT_AUTOCONF | UPF_IOREMAP)

static struct plat_serial8250_port serial_platform_data[] = {
	[0] = {
		.iotype		= UPIO_MEM,
		.mapbase	= 0x16000000,
		.regshift	= 1,
		.flags		= ST16C2550C_FLAGS,
		.uartclk	= 7372800,
	},
	[1] = {
		.iotype		= UPIO_MEM,
		.mapbase	= 0x17000000,
		.regshift	= 1,
		.flags		= ST16C2550C_FLAGS,
		.uartclk	= 7372800,
	},
	{ },
};

static struct platform_device uart_device = {
	.name			= "serial8250",
	.id			= PLAT8250_DEV_PLATFORM,
	.dev			= {
		.platform_data	= serial_platform_data,
	},
};

static void isp116x_delay(struct device *dev, int delay)
{
	ndelay(delay);
}

static struct resource usb_resources[] = {
	[0] = {
		.start  = 0x11800000,
		.end    = 0x11800001,
		.flags  = IORESOURCE_MEM,
	},
	[1] = {
		.start  = 0x11800002,
		.end    = 0x11800003,
		.flags  = IORESOURCE_MEM,
	},
	[2] = {
		/* Filled in later */
		.flags  = IORESOURCE_IRQ,
	},
};

static struct isp116x_platform_data usb_platform_data = {
	.sel15Kres		= 1,
	.oc_enable		= 1,
	.int_act_high		= 0,
	.int_edge_triggered	= 0,
	.remote_wakeup_enable	= 0,
	.delay			= isp116x_delay,
};

static struct platform_device usb_device = {
	.name			= "isp116x-hcd",
	.id			= -1,
	.num_resources		= ARRAY_SIZE(usb_resources),
	.resource		= usb_resources,
	.dev			= {
		.platform_data	= &usb_platform_data,
	},

};

static struct platform_device *sh7343se_platform_devices[] __initdata = {
	&heartbeat_device,
	&nor_flash_device,
	&uart_device,
	&usb_device,
};

static int __init sh7343se_devices_setup(void)
{
	/* Wire-up dynamic vectors */
	serial_platform_data[0].irq = irq_find_mapping(se7343_irq_domain,
						       SE7343_FPGA_IRQ_UARTA);
	serial_platform_data[1].irq = irq_find_mapping(se7343_irq_domain,
						       SE7343_FPGA_IRQ_UARTB);
	usb_resources[2].start = usb_resources[2].end =
		irq_find_mapping(se7343_irq_domain, SE7343_FPGA_IRQ_USB);

	return platform_add_devices(sh7343se_platform_devices,
				    ARRAY_SIZE(sh7343se_platform_devices));
}
device_initcall(sh7343se_devices_setup);

/*
 * Initialize the board
 */
static void __init sh7343se_setup(char **cmdline_p)
{
	__raw_writew(0xf900, FPGA_OUT);	/* FPGA */

	__raw_writew(0x0002, PORT_PECR);	/* PORT E 1 = IRQ5 */
	__raw_writew(0x0020, PORT_PSELD);

	printk(KERN_INFO "MS7343CP01 Setup...done\n");
}

/*
 * The Machine Vector
 */
static struct sh_machine_vector mv_7343se __initmv = {
	.mv_name = "SolutionEngine 7343",
	.mv_setup = sh7343se_setup,
	.mv_init_irq = init_7343se_IRQ,
};