2 * arch/arm/mach-orion5x/dns323-setup.c
4 * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU Lesser General Public License as
8 * published by the Free Software Foundation; either version 2 of the
9 * License, or (at your option) any later version.
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
16 #include <linux/pci.h>
17 #include <linux/irq.h>
18 #include <linux/mtd/physmap.h>
19 #include <linux/mv643xx_eth.h>
20 #include <linux/leds.h>
21 #include <linux/gpio_keys.h>
22 #include <linux/input.h>
23 #include <linux/i2c.h>
24 #include <asm/mach-types.h>
26 #include <asm/mach/arch.h>
27 #include <asm/mach/pci.h>
28 #include <asm/arch/orion5x.h>
32 #define DNS323_GPIO_LED_RIGHT_AMBER 1
33 #define DNS323_GPIO_LED_LEFT_AMBER 2
34 #define DNS323_GPIO_LED_POWER 5
35 #define DNS323_GPIO_OVERTEMP 6
36 #define DNS323_GPIO_RTC 7
37 #define DNS323_GPIO_POWER_OFF 8
38 #define DNS323_GPIO_KEY_POWER 9
39 #define DNS323_GPIO_KEY_RESET 10
41 /****************************************************************************
45 static int __init dns323_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
50 * Check for devices with hard-wired IRQs.
52 irq = orion5x_pci_map_irq(dev, slot, pin);
59 static struct hw_pci dns323_pci __initdata = {
61 .swizzle = pci_std_swizzle,
62 .setup = orion5x_pci_sys_setup,
63 .scan = orion5x_pci_sys_scan_bus,
64 .map_irq = dns323_pci_map_irq,
67 static int __init dns323_pci_init(void)
69 if (machine_is_dns323())
70 pci_common_init(&dns323_pci);
75 subsys_initcall(dns323_pci_init);
77 /****************************************************************************
81 static struct mv643xx_eth_platform_data dns323_eth_data = {
86 /****************************************************************************
87 * 8MiB NOR flash (Spansion S29GL064M90TFIR4)
89 * Layout as used by D-Link:
90 * 0x00000000-0x00010000 : "MTD1"
91 * 0x00010000-0x00020000 : "MTD2"
92 * 0x00020000-0x001a0000 : "Linux Kernel"
93 * 0x001a0000-0x007d0000 : "File System"
94 * 0x007d0000-0x00800000 : "u-boot"
97 #define DNS323_NOR_BOOT_BASE 0xf4000000
98 #define DNS323_NOR_BOOT_SIZE SZ_8M
100 static struct mtd_partition dns323_partitions[] = {
108 .offset = 0x00010000,
110 .name = "Linux Kernel",
112 .offset = 0x00020000,
114 .name = "File System",
116 .offset = 0x001A0000,
120 .offset = 0x007d0000,
124 static struct physmap_flash_data dns323_nor_flash_data = {
126 .parts = dns323_partitions,
127 .nr_parts = ARRAY_SIZE(dns323_partitions)
130 static struct resource dns323_nor_flash_resource = {
131 .flags = IORESOURCE_MEM,
132 .start = DNS323_NOR_BOOT_BASE,
133 .end = DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1,
136 static struct platform_device dns323_nor_flash = {
137 .name = "physmap-flash",
140 .platform_data = &dns323_nor_flash_data,
142 .resource = &dns323_nor_flash_resource,
146 /****************************************************************************
147 * GPIO LEDs (simple - doesn't use hardware blinking support)
150 static struct gpio_led dns323_leds[] = {
152 .name = "power:blue",
153 .gpio = DNS323_GPIO_LED_POWER,
156 .name = "right:amber",
157 .gpio = DNS323_GPIO_LED_RIGHT_AMBER,
160 .name = "left:amber",
161 .gpio = DNS323_GPIO_LED_LEFT_AMBER,
166 static struct gpio_led_platform_data dns323_led_data = {
167 .num_leds = ARRAY_SIZE(dns323_leds),
171 static struct platform_device dns323_gpio_leds = {
175 .platform_data = &dns323_led_data,
179 /****************************************************************************
183 static struct gpio_keys_button dns323_buttons[] = {
186 .gpio = DNS323_GPIO_KEY_RESET,
187 .desc = "Reset Button",
191 .gpio = DNS323_GPIO_KEY_POWER,
192 .desc = "Power Button",
197 static struct gpio_keys_platform_data dns323_button_data = {
198 .buttons = dns323_buttons,
199 .nbuttons = ARRAY_SIZE(dns323_buttons),
202 static struct platform_device dns323_button_device = {
207 .platform_data = &dns323_button_data,
211 /****************************************************************************
214 static struct orion5x_mpp_mode dns323_mpp_modes[] __initdata = {
215 { 0, MPP_PCIE_RST_OUTn },
216 { 1, MPP_GPIO }, /* right amber LED (sata ch0) */
217 { 2, MPP_GPIO }, /* left amber LED (sata ch1) */
219 { 4, MPP_GPIO }, /* power button LED */
220 { 5, MPP_GPIO }, /* power button LED */
221 { 6, MPP_GPIO }, /* GMT G751-2f overtemp */
222 { 7, MPP_GPIO }, /* M41T80 nIRQ/OUT/SQW */
223 { 8, MPP_GPIO }, /* triggers power off */
224 { 9, MPP_GPIO }, /* power button switch */
225 { 10, MPP_GPIO }, /* reset button switch */
239 * On the DNS-323 the following devices are attached via I2C:
241 * i2c addr | chip | description
242 * 0x3e | GMT G760Af | fan speed PWM controller
243 * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
244 * 0x68 | ST M41T80 | RTC w/ alarm
246 static struct i2c_board_info __initdata dns323_i2c_devices[] = {
248 I2C_BOARD_INFO("g760a", 0x3e),
250 /* this entry requires the new-style driver model lm75 driver,
251 * for the meantime "insmod lm75.ko force_lm75=0,0x48" is needed */
253 I2C_BOARD_INFO("g751", 0x48),
256 I2C_BOARD_INFO("m41t80", 0x68),
260 /* DNS-323 specific power off method */
261 static void dns323_power_off(void)
263 pr_info("%s: triggering power-off...\n", __func__);
264 gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
267 static void __init dns323_init(void)
269 /* Setup basic Orion functions. Need to be called early. */
272 orion5x_mpp_conf(dns323_mpp_modes);
273 orion5x_write(MPP_DEV_CTRL, 0); /* DEV_D[31:16] */
276 * Configure peripherals.
278 orion5x_ehci0_init();
279 orion5x_eth_init(&dns323_eth_data);
281 orion5x_uart0_init();
283 /* setup flash mapping
284 * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
286 orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE);
287 platform_device_register(&dns323_nor_flash);
289 platform_device_register(&dns323_gpio_leds);
291 platform_device_register(&dns323_button_device);
293 i2c_register_board_info(0, dns323_i2c_devices,
294 ARRAY_SIZE(dns323_i2c_devices));
296 /* register dns323 specific power-off method */
297 if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
298 gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
299 pr_err("DNS323: failed to setup power-off GPIO\n");
300 pm_power_off = dns323_power_off;
303 /* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
304 MACHINE_START(DNS323, "D-Link DNS-323")
305 /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
306 .phys_io = ORION5X_REGS_PHYS_BASE,
307 .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
308 .boot_params = 0x00000100,
309 .init_machine = dns323_init,
310 .map_io = orion5x_map_io,
311 .init_irq = orion5x_init_irq,
312 .timer = &orion5x_timer,
313 .fixup = tag_fixup_mem32,