mirror of
https://github.com/torvalds/linux.git
synced 2025-11-04 02:30:34 +02:00
a41cdd0117
Add support for Sysam AMCORE board, an open hardware embedded Linux board, see http://sysam.it/openzone/projects/amcore/amcore.html for any info. Signed-off-by: Angelo Dureghello <angelo@sysam.it> Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
156 lines
3.2 KiB
C
156 lines
3.2 KiB
C
/*
|
|
* 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);
|