1a41cdd01SAngelo Dureghello /*
2a41cdd01SAngelo Dureghello * amcore.c -- Support for Sysam AMCORE open board
3a41cdd01SAngelo Dureghello *
4a41cdd01SAngelo Dureghello * (C) Copyright 2016, Angelo Dureghello <angelo@sysam.it>
5a41cdd01SAngelo Dureghello *
6a41cdd01SAngelo Dureghello * This file is subject to the terms and conditions of the GNU General Public
7a41cdd01SAngelo Dureghello * License. See the file COPYING in the main directory of this archive
8a41cdd01SAngelo Dureghello * for more details.
9a41cdd01SAngelo Dureghello */
10a41cdd01SAngelo Dureghello
11a41cdd01SAngelo Dureghello #include <linux/device.h>
12a41cdd01SAngelo Dureghello #include <linux/platform_device.h>
13a41cdd01SAngelo Dureghello #include <linux/dm9000.h>
14a41cdd01SAngelo Dureghello #include <linux/irq.h>
15a41cdd01SAngelo Dureghello #include <linux/interrupt.h>
16a41cdd01SAngelo Dureghello #include <linux/mtd/mtd.h>
17a41cdd01SAngelo Dureghello #include <linux/mtd/map.h>
18a41cdd01SAngelo Dureghello #include <linux/mtd/partitions.h>
19a41cdd01SAngelo Dureghello #include <linux/mtd/physmap.h>
20a41cdd01SAngelo Dureghello #include <linux/i2c.h>
21a41cdd01SAngelo Dureghello
22a41cdd01SAngelo Dureghello #include <asm/coldfire.h>
23a41cdd01SAngelo Dureghello #include <asm/mcfsim.h>
24a41cdd01SAngelo Dureghello #include <asm/io.h>
25a41cdd01SAngelo Dureghello
26a41cdd01SAngelo Dureghello #if IS_ENABLED(CONFIG_DM9000)
27a41cdd01SAngelo Dureghello
28a41cdd01SAngelo Dureghello #define DM9000_IRQ 25
29a41cdd01SAngelo Dureghello #define DM9000_ADDR 0x30000000
30a41cdd01SAngelo Dureghello
31a41cdd01SAngelo Dureghello /*
32a41cdd01SAngelo Dureghello * DEVICES and related device RESOURCES
33a41cdd01SAngelo Dureghello */
34a41cdd01SAngelo Dureghello static struct resource dm9000_resources[] = {
35a41cdd01SAngelo Dureghello /* physical address of the address register (CMD [A2] to 0)*/
36a41cdd01SAngelo Dureghello [0] = {
37a41cdd01SAngelo Dureghello .start = DM9000_ADDR,
38a41cdd01SAngelo Dureghello .end = DM9000_ADDR,
39a41cdd01SAngelo Dureghello .flags = IORESOURCE_MEM,
40a41cdd01SAngelo Dureghello },
41a41cdd01SAngelo Dureghello /*
42a41cdd01SAngelo Dureghello * physical address of the data register (CMD [A2] to 1),
43a41cdd01SAngelo Dureghello * driver wants a range >=4 to assume a 32bit data bus
44a41cdd01SAngelo Dureghello */
45a41cdd01SAngelo Dureghello [1] = {
46a41cdd01SAngelo Dureghello .start = DM9000_ADDR + 4,
47a41cdd01SAngelo Dureghello .end = DM9000_ADDR + 7,
48a41cdd01SAngelo Dureghello .flags = IORESOURCE_MEM,
49a41cdd01SAngelo Dureghello },
50a41cdd01SAngelo Dureghello /* IRQ line the device's interrupt pin is connected to */
51a41cdd01SAngelo Dureghello [2] = {
52a41cdd01SAngelo Dureghello .start = DM9000_IRQ,
53a41cdd01SAngelo Dureghello .end = DM9000_IRQ,
54a41cdd01SAngelo Dureghello .flags = IORESOURCE_IRQ,
55a41cdd01SAngelo Dureghello },
56a41cdd01SAngelo Dureghello };
57a41cdd01SAngelo Dureghello
58a41cdd01SAngelo Dureghello static struct dm9000_plat_data dm9000_platdata = {
59a41cdd01SAngelo Dureghello .flags = DM9000_PLATF_32BITONLY,
60a41cdd01SAngelo Dureghello };
61a41cdd01SAngelo Dureghello
62a41cdd01SAngelo Dureghello static struct platform_device dm9000_device = {
63a41cdd01SAngelo Dureghello .name = "dm9000",
64a41cdd01SAngelo Dureghello .id = 0,
65a41cdd01SAngelo Dureghello .num_resources = ARRAY_SIZE(dm9000_resources),
66a41cdd01SAngelo Dureghello .resource = dm9000_resources,
67a41cdd01SAngelo Dureghello .dev = {
68a41cdd01SAngelo Dureghello .platform_data = &dm9000_platdata,
69a41cdd01SAngelo Dureghello }
70a41cdd01SAngelo Dureghello };
71a41cdd01SAngelo Dureghello #endif
72a41cdd01SAngelo Dureghello
dm9000_pre_init(void)73a41cdd01SAngelo Dureghello static void __init dm9000_pre_init(void)
74a41cdd01SAngelo Dureghello {
75a41cdd01SAngelo Dureghello /* Set the dm9000 interrupt to be auto-vectored */
76a41cdd01SAngelo Dureghello mcf_autovector(DM9000_IRQ);
77a41cdd01SAngelo Dureghello }
78a41cdd01SAngelo Dureghello
79a41cdd01SAngelo Dureghello /*
80a41cdd01SAngelo Dureghello * Partitioning of parallel NOR flash (39VF3201B)
81a41cdd01SAngelo Dureghello */
82a41cdd01SAngelo Dureghello static struct mtd_partition amcore_partitions[] = {
83a41cdd01SAngelo Dureghello {
84a41cdd01SAngelo Dureghello .name = "U-Boot (128K)",
85a41cdd01SAngelo Dureghello .size = 0x20000,
86a41cdd01SAngelo Dureghello .offset = 0x0
87a41cdd01SAngelo Dureghello },
88a41cdd01SAngelo Dureghello {
89a41cdd01SAngelo Dureghello .name = "Kernel+ROMfs (2994K)",
90a41cdd01SAngelo Dureghello .size = 0x2E0000,
91a41cdd01SAngelo Dureghello .offset = MTDPART_OFS_APPEND
92a41cdd01SAngelo Dureghello },
93a41cdd01SAngelo Dureghello {
94a41cdd01SAngelo Dureghello .name = "Flash Free Space (1024K)",
95a41cdd01SAngelo Dureghello .size = MTDPART_SIZ_FULL,
96a41cdd01SAngelo Dureghello .offset = MTDPART_OFS_APPEND
97a41cdd01SAngelo Dureghello }
98a41cdd01SAngelo Dureghello };
99a41cdd01SAngelo Dureghello
100a41cdd01SAngelo Dureghello static struct physmap_flash_data flash_data = {
101a41cdd01SAngelo Dureghello .parts = amcore_partitions,
102a41cdd01SAngelo Dureghello .nr_parts = ARRAY_SIZE(amcore_partitions),
103a41cdd01SAngelo Dureghello .width = 2,
104a41cdd01SAngelo Dureghello };
105a41cdd01SAngelo Dureghello
106a41cdd01SAngelo Dureghello static struct resource flash_resource = {
107a41cdd01SAngelo Dureghello .start = 0xffc00000,
108a41cdd01SAngelo Dureghello .end = 0xffffffff,
109a41cdd01SAngelo Dureghello .flags = IORESOURCE_MEM,
110a41cdd01SAngelo Dureghello };
111a41cdd01SAngelo Dureghello
112a41cdd01SAngelo Dureghello static struct platform_device flash_device = {
113a41cdd01SAngelo Dureghello .name = "physmap-flash",
114a41cdd01SAngelo Dureghello .id = -1,
115a41cdd01SAngelo Dureghello .resource = &flash_resource,
116a41cdd01SAngelo Dureghello .num_resources = 1,
117a41cdd01SAngelo Dureghello .dev = {
118a41cdd01SAngelo Dureghello .platform_data = &flash_data,
119a41cdd01SAngelo Dureghello },
120a41cdd01SAngelo Dureghello };
121a41cdd01SAngelo Dureghello
122a41cdd01SAngelo Dureghello static struct platform_device rtc_device = {
123a41cdd01SAngelo Dureghello .name = "rtc-ds1307",
124a41cdd01SAngelo Dureghello .id = -1,
125a41cdd01SAngelo Dureghello };
126a41cdd01SAngelo Dureghello
127a41cdd01SAngelo Dureghello static struct i2c_board_info amcore_i2c_info[] __initdata = {
128a41cdd01SAngelo Dureghello {
129a41cdd01SAngelo Dureghello I2C_BOARD_INFO("ds1338", 0x68),
130a41cdd01SAngelo Dureghello },
131a41cdd01SAngelo Dureghello };
132a41cdd01SAngelo Dureghello
133a41cdd01SAngelo Dureghello static struct platform_device *amcore_devices[] __initdata = {
134a41cdd01SAngelo Dureghello #if IS_ENABLED(CONFIG_DM9000)
135a41cdd01SAngelo Dureghello &dm9000_device,
136a41cdd01SAngelo Dureghello #endif
137a41cdd01SAngelo Dureghello &flash_device,
138a41cdd01SAngelo Dureghello &rtc_device,
139a41cdd01SAngelo Dureghello };
140a41cdd01SAngelo Dureghello
init_amcore(void)141a41cdd01SAngelo Dureghello static int __init init_amcore(void)
142a41cdd01SAngelo Dureghello {
143a41cdd01SAngelo Dureghello #if IS_ENABLED(CONFIG_DM9000)
144a41cdd01SAngelo Dureghello dm9000_pre_init();
145a41cdd01SAngelo Dureghello #endif
146a41cdd01SAngelo Dureghello
147a41cdd01SAngelo Dureghello /* Add i2c RTC Dallas chip supprt */
148a41cdd01SAngelo Dureghello i2c_register_board_info(0, amcore_i2c_info,
149a41cdd01SAngelo Dureghello ARRAY_SIZE(amcore_i2c_info));
150a41cdd01SAngelo Dureghello
151a41cdd01SAngelo Dureghello platform_add_devices(amcore_devices, ARRAY_SIZE(amcore_devices));
152a41cdd01SAngelo Dureghello
153a41cdd01SAngelo Dureghello return 0;
154a41cdd01SAngelo Dureghello }
155a41cdd01SAngelo Dureghello
156a41cdd01SAngelo Dureghello arch_initcall(init_amcore);
157