2 * GPR board platform device registration (Au1550)
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #include <linux/delay.h>
22 #include <linux/init.h>
23 #include <linux/interrupt.h>
24 #include <linux/kernel.h>
25 #include <linux/platform_device.h>
27 #include <linux/mtd/partitions.h>
28 #include <linux/mtd/physmap.h>
29 #include <linux/leds.h>
30 #include <linux/gpio.h>
31 #include <linux/i2c.h>
32 #include <linux/i2c-gpio.h>
33 #include <asm/bootinfo.h>
35 #include <asm/reboot.h>
36 #include <asm/mach-au1x00/au1000.h>
39 const char *get_system_type(void)
44 void __init prom_init(void)
46 unsigned char *memsize_str;
47 unsigned long memsize;
50 prom_argv = (char **)fw_arg1;
51 prom_envp = (char **)fw_arg2;
55 memsize_str = prom_getenv("memsize");
56 if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
58 add_memory_region(0, memsize, BOOT_MEM_RAM);
61 void prom_putchar(unsigned char c)
63 alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
66 static void gpr_reset(char *c)
68 /* switch System-LED to orange (red# and green# on) */
69 alchemy_gpio_direction_output(4, 0);
70 alchemy_gpio_direction_output(5, 0);
72 /* trigger watchdog to reset board in 200ms */
73 printk(KERN_EMERG "Triggering watchdog soft reset...\n");
74 raw_local_irq_disable();
75 alchemy_gpio_direction_output(1, 0);
77 alchemy_gpio_set_value(1, 1);
82 static void gpr_power_off(void)
88 void __init board_setup(void)
90 printk(KERN_INFO "Trapeze ITS GPR board\n");
92 pm_power_off = gpr_power_off;
93 _machine_halt = gpr_power_off;
94 _machine_restart = gpr_reset;
97 alchemy_uart_enable(AU1000_UART3_PHYS_ADDR);
98 alchemy_uart_enable(AU1000_UART1_PHYS_ADDR);
100 /* Take away Reset of UMTS-card */
101 alchemy_gpio_direction_output(215, 1);
107 static struct resource gpr_wdt_resource[] = {
111 .name = "gpr-adm6320-wdt",
112 .flags = IORESOURCE_IRQ,
116 static struct platform_device gpr_wdt_device = {
117 .name = "adm6320-wdt",
119 .num_resources = ARRAY_SIZE(gpr_wdt_resource),
120 .resource = gpr_wdt_resource,
126 * 0x00000000-0x00200000 : "kernel"
127 * 0x00200000-0x00a00000 : "rootfs"
128 * 0x01d00000-0x01f00000 : "config"
129 * 0x01c00000-0x01d00000 : "yamon"
130 * 0x01d00000-0x01d40000 : "yamon env vars"
131 * 0x00000000-0x00a00000 : "kernel+rootfs"
133 static struct mtd_partition gpr_mtd_partitions[] = {
142 .offset = MTDPART_OFS_APPEND,
143 .mask_flags = MTD_WRITEABLE,
148 .offset = 0x01d00000,
153 .offset = 0x01c00000,
156 .name = "yamon env vars",
158 .offset = MTDPART_OFS_APPEND,
161 .name = "kernel+rootfs",
167 static struct physmap_flash_data gpr_flash_data = {
169 .nr_parts = ARRAY_SIZE(gpr_mtd_partitions),
170 .parts = gpr_mtd_partitions,
173 static struct resource gpr_mtd_resource = {
176 .flags = IORESOURCE_MEM,
179 static struct platform_device gpr_mtd_device = {
180 .name = "physmap-flash",
182 .platform_data = &gpr_flash_data,
185 .resource = &gpr_mtd_resource,
191 static struct gpio_led gpr_gpio_leds[] = {
204 static struct gpio_led_platform_data gpr_led_data = {
205 .num_leds = ARRAY_SIZE(gpr_gpio_leds),
206 .leds = gpr_gpio_leds,
209 static struct platform_device gpr_led_devices = {
213 .platform_data = &gpr_led_data,
220 static struct i2c_gpio_platform_data gpr_i2c_data = {
222 .sda_is_open_drain = 1,
224 .scl_is_open_drain = 1,
225 .udelay = 2, /* ~100 kHz */
229 static struct platform_device gpr_i2c_device = {
232 .dev.platform_data = &gpr_i2c_data,
235 static struct i2c_board_info gpr_i2c_info[] __initdata = {
237 I2C_BOARD_INFO("lm83", 0x18),
244 static struct resource alchemy_pci_host_res[] = {
246 .start = AU1500_PCI_PHYS_ADDR,
247 .end = AU1500_PCI_PHYS_ADDR + 0xfff,
248 .flags = IORESOURCE_MEM,
252 static int gpr_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
254 if ((slot == 0) && (pin == 1))
255 return AU1550_PCI_INTA;
256 else if ((slot == 0) && (pin == 2))
257 return AU1550_PCI_INTB;
262 static struct alchemy_pci_platdata gpr_pci_pd = {
263 .board_map_irq = gpr_map_pci_irq,
264 .pci_cfg_set = PCI_CONFIG_AEN | PCI_CONFIG_R2H | PCI_CONFIG_R1H |
266 #if defined(__MIPSEB__)
267 PCI_CONFIG_SIC_HWA_DAT | PCI_CONFIG_SM,
273 static struct platform_device gpr_pci_host_dev = {
274 .dev.platform_data = &gpr_pci_pd,
275 .name = "alchemy-pci",
277 .num_resources = ARRAY_SIZE(alchemy_pci_host_res),
278 .resource = alchemy_pci_host_res,
281 static struct platform_device *gpr_devices[] __initdata = {
288 static int __init gpr_pci_init(void)
290 return platform_device_register(&gpr_pci_host_dev);
292 /* must be arch_initcall; MIPS PCI scans busses in a subsys_initcall */
293 arch_initcall(gpr_pci_init);
296 static int __init gpr_dev_init(void)
298 i2c_register_board_info(0, gpr_i2c_info, ARRAY_SIZE(gpr_i2c_info));
300 return platform_add_devices(gpr_devices, ARRAY_SIZE(gpr_devices));
302 device_initcall(gpr_dev_init);