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+/*
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+ * amcore.c -- Support for Sysam AMCORE open board
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+ *
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+ * (C) Copyright 2016, Angelo Dureghello <angelo@sysam.it>
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+ *
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+ * This file is subject to the terms and conditions of the GNU General Public
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+ * License. See the file COPYING in the main directory of this archive
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+ * for more details.
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+ */
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+
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+#include <linux/device.h>
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+#include <linux/platform_device.h>
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+#include <linux/dm9000.h>
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+#include <linux/irq.h>
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+#include <linux/interrupt.h>
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+#include <linux/mtd/mtd.h>
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+#include <linux/mtd/map.h>
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+#include <linux/mtd/partitions.h>
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+#include <linux/mtd/physmap.h>
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+#include <linux/i2c.h>
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+
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+#include <asm/coldfire.h>
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+#include <asm/mcfsim.h>
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+#include <asm/io.h>
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+
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+#if IS_ENABLED(CONFIG_DM9000)
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+
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+#define DM9000_IRQ 25
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+#define DM9000_ADDR 0x30000000
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+
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+/*
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+ * DEVICES and related device RESOURCES
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+ */
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+static struct resource dm9000_resources[] = {
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+ /* physical address of the address register (CMD [A2] to 0)*/
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+ [0] = {
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+ .start = DM9000_ADDR,
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+ .end = DM9000_ADDR,
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+ .flags = IORESOURCE_MEM,
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+ },
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+ /*
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+ * physical address of the data register (CMD [A2] to 1),
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+ * driver wants a range >=4 to assume a 32bit data bus
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+ */
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+ [1] = {
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+ .start = DM9000_ADDR + 4,
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+ .end = DM9000_ADDR + 7,
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+ .flags = IORESOURCE_MEM,
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+ },
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+ /* IRQ line the device's interrupt pin is connected to */
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+ [2] = {
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+ .start = DM9000_IRQ,
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+ .end = DM9000_IRQ,
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+ .flags = IORESOURCE_IRQ,
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+ },
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+};
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+
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+static struct dm9000_plat_data dm9000_platdata = {
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+ .flags = DM9000_PLATF_32BITONLY,
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+};
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+
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+static struct platform_device dm9000_device = {
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+ .name = "dm9000",
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+ .id = 0,
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+ .num_resources = ARRAY_SIZE(dm9000_resources),
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+ .resource = dm9000_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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+#endif
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+
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+static void __init dm9000_pre_init(void)
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+{
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+ /* Set the dm9000 interrupt to be auto-vectored */
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+ mcf_autovector(DM9000_IRQ);
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+}
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+
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+/*
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+ * Partitioning of parallel NOR flash (39VF3201B)
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+ */
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+static struct mtd_partition amcore_partitions[] = {
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+ {
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+ .name = "U-Boot (128K)",
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+ .size = 0x20000,
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+ .offset = 0x0
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+ },
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+ {
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+ .name = "Kernel+ROMfs (2994K)",
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+ .size = 0x2E0000,
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+ .offset = MTDPART_OFS_APPEND
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+ },
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+ {
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+ .name = "Flash Free Space (1024K)",
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+ .size = MTDPART_SIZ_FULL,
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+ .offset = MTDPART_OFS_APPEND
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+ }
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+};
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+
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+static struct physmap_flash_data flash_data = {
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+ .parts = amcore_partitions,
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+ .nr_parts = ARRAY_SIZE(amcore_partitions),
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+ .width = 2,
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+};
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+
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+static struct resource flash_resource = {
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+ .start = 0xffc00000,
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+ .end = 0xffffffff,
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+ .flags = IORESOURCE_MEM,
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+};
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+
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+static struct platform_device flash_device = {
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+ .name = "physmap-flash",
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+ .id = -1,
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+ .resource = &flash_resource,
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+ .num_resources = 1,
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+ .dev = {
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+ .platform_data = &flash_data,
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+ },
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+};
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+
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+static struct platform_device rtc_device = {
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+ .name = "rtc-ds1307",
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+ .id = -1,
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+};
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+
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+static struct i2c_board_info amcore_i2c_info[] __initdata = {
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+ {
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+ I2C_BOARD_INFO("ds1338", 0x68),
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+ },
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+};
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+
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+static struct platform_device *amcore_devices[] __initdata = {
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+#if IS_ENABLED(CONFIG_DM9000)
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+ &dm9000_device,
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+#endif
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+ &flash_device,
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+ &rtc_device,
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+};
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+
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+static int __init init_amcore(void)
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+{
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+#if IS_ENABLED(CONFIG_DM9000)
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+ dm9000_pre_init();
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+#endif
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+
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+ /* Add i2c RTC Dallas chip supprt */
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+ i2c_register_board_info(0, amcore_i2c_info,
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+ ARRAY_SIZE(amcore_i2c_info));
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+
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+ platform_add_devices(amcore_devices, ARRAY_SIZE(amcore_devices));
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+
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+ return 0;
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+}
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+
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+arch_initcall(init_amcore);
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Angelo Dureghello