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/*
* amcore.c -- Support for Sysam AMCORE open board
*
* (C) Copyright 2016, Angelo Dureghello <angelo@sysam.it>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*/
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/dm9000.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/i2c.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/io.h>
#if IS_ENABLED(CONFIG_DM9000)
#define DM9000_IRQ 25
#define DM9000_ADDR 0x30000000
/*
* DEVICES and related device RESOURCES
*/
static struct resource dm9000_resources[] = {
/* physical address of the address register (CMD [A2] to 0)*/
[0] = {
.start = DM9000_ADDR,
.end = DM9000_ADDR,
.flags = IORESOURCE_MEM,
},
/*
* physical address of the data register (CMD [A2] to 1),
* driver wants a range >=4 to assume a 32bit data bus
*/
[1] = {
.start = DM9000_ADDR + 4,
.end = DM9000_ADDR + 7,
.flags = IORESOURCE_MEM,
},
/* IRQ line the device's interrupt pin is connected to */
[2] = {
.start = DM9000_IRQ,
.end = DM9000_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static struct dm9000_plat_data dm9000_platdata = {
.flags = DM9000_PLATF_32BITONLY,
};
static struct platform_device dm9000_device = {
.name = "dm9000",
.id = 0,
.num_resources = ARRAY_SIZE(dm9000_resources),
.resource = dm9000_resources,
.dev = {
.platform_data = &dm9000_platdata,
}
};
#endif
static void __init dm9000_pre_init(void)
{
/* Set the dm9000 interrupt to be auto-vectored */
mcf_autovector(DM9000_IRQ);
}
/*
* Partitioning of parallel NOR flash (39VF3201B)
*/
static struct mtd_partition amcore_partitions[] = {
{
.name = "U-Boot (128K)",
.size = 0x20000,
.offset = 0x0
},
{
.name = "Kernel+ROMfs (2994K)",
.size = 0x2E0000,
.offset = MTDPART_OFS_APPEND
},
{
.name = "Flash Free Space (1024K)",
.size = MTDPART_SIZ_FULL,
.offset = MTDPART_OFS_APPEND
}
};
static struct physmap_flash_data flash_data = {
.parts = amcore_partitions,
.nr_parts = ARRAY_SIZE(amcore_partitions),
.width = 2,
};
static struct resource flash_resource = {
.start = 0xffc00000,
.end = 0xffffffff,
.flags = IORESOURCE_MEM,
};
static struct platform_device flash_device = {
.name = "physmap-flash",
.id = -1,
.resource = &flash_resource,
.num_resources = 1,
.dev = {
.platform_data = &flash_data,
},
};
static struct platform_device rtc_device = {
.name = "rtc-ds1307",
.id = -1,
};
static struct i2c_board_info amcore_i2c_info[] __initdata = {
{
I2C_BOARD_INFO("ds1338", 0x68),
},
};
static struct platform_device *amcore_devices[] __initdata = {
#if IS_ENABLED(CONFIG_DM9000)
&dm9000_device,
#endif
&flash_device,
&rtc_device,
};
static int __init init_amcore(void)
{
#if IS_ENABLED(CONFIG_DM9000)
dm9000_pre_init();
#endif
/* Add i2c RTC Dallas chip supprt */
i2c_register_board_info(0, amcore_i2c_info,
ARRAY_SIZE(amcore_i2c_info));
platform_add_devices(amcore_devices, ARRAY_SIZE(amcore_devices));
return 0;
}
arch_initcall(init_amcore);
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