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>
31 #define DNS323_GPIO_LED_RIGHT_AMBER 1
32 #define DNS323_GPIO_LED_LEFT_AMBER 2
33 #define DNS323_GPIO_LED_POWER 5
34 #define DNS323_GPIO_OVERTEMP 6
35 #define DNS323_GPIO_RTC 7
36 #define DNS323_GPIO_POWER_OFF 8
37 #define DNS323_GPIO_KEY_POWER 9
38 #define DNS323_GPIO_KEY_RESET 10
40 /****************************************************************************
44 static int __init dns323_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
47 if (dev->bus->number == orion5x_pcie_local_bus_nr())
48 return IRQ_ORION5X_PCIE0_INT;
50 pr_err("%s: requested mapping for unknown bus\n", __func__);
55 static struct hw_pci dns323_pci __initdata = {
57 .swizzle = pci_std_swizzle,
58 .setup = orion5x_pci_sys_setup,
59 .scan = orion5x_pci_sys_scan_bus,
60 .map_irq = dns323_pci_map_irq,
63 static int __init dns323_pci_init(void)
65 if (machine_is_dns323())
66 pci_common_init(&dns323_pci);
71 subsys_initcall(dns323_pci_init);
73 /****************************************************************************
77 static struct mv643xx_eth_platform_data dns323_eth_data = {
82 /****************************************************************************
83 * 8MiB NOR flash (Spansion S29GL064M90TFIR4)
85 * Layout as used by D-Link:
86 * 0x00000000-0x00010000 : "MTD1"
87 * 0x00010000-0x00020000 : "MTD2"
88 * 0x00020000-0x001a0000 : "Linux Kernel"
89 * 0x001a0000-0x007d0000 : "File System"
90 * 0x007d0000-0x00800000 : "u-boot"
93 #define DNS323_NOR_BOOT_BASE 0xf4000000
94 #define DNS323_NOR_BOOT_SIZE SZ_8M
96 static struct mtd_partition dns323_partitions[] = {
104 .offset = 0x00010000,
106 .name = "Linux Kernel",
108 .offset = 0x00020000,
110 .name = "File System",
112 .offset = 0x001A0000,
116 .offset = 0x007d0000,
120 static struct physmap_flash_data dns323_nor_flash_data = {
122 .parts = dns323_partitions,
123 .nr_parts = ARRAY_SIZE(dns323_partitions)
126 static struct resource dns323_nor_flash_resource = {
127 .flags = IORESOURCE_MEM,
128 .start = DNS323_NOR_BOOT_BASE,
129 .end = DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1,
132 static struct platform_device dns323_nor_flash = {
133 .name = "physmap-flash",
135 .dev = { .platform_data = &dns323_nor_flash_data, },
136 .resource = &dns323_nor_flash_resource,
140 /****************************************************************************
141 * GPIO LEDs (simple - doesn't use hardware blinking support)
144 static struct gpio_led dns323_leds[] = {
146 .name = "power:blue",
147 .gpio = DNS323_GPIO_LED_POWER,
150 .name = "right:amber",
151 .gpio = DNS323_GPIO_LED_RIGHT_AMBER,
154 .name = "left:amber",
155 .gpio = DNS323_GPIO_LED_LEFT_AMBER,
160 static struct gpio_led_platform_data dns323_led_data = {
161 .num_leds = ARRAY_SIZE(dns323_leds),
165 static struct platform_device dns323_gpio_leds = {
168 .dev = { .platform_data = &dns323_led_data, },
171 /****************************************************************************
175 static struct gpio_keys_button dns323_buttons[] = {
178 .gpio = DNS323_GPIO_KEY_RESET,
179 .desc = "Reset Button",
184 .gpio = DNS323_GPIO_KEY_POWER,
185 .desc = "Power Button",
190 static struct gpio_keys_platform_data dns323_button_data = {
191 .buttons = dns323_buttons,
192 .nbuttons = ARRAY_SIZE(dns323_buttons),
195 static struct platform_device dns323_button_device = {
199 .dev = { .platform_data = &dns323_button_data, },
202 /****************************************************************************
206 static struct platform_device *dns323_plat_devices[] __initdata = {
209 &dns323_button_device,
213 * On the DNS-323 the following devices are attached via I2C:
215 * i2c addr | chip | description
216 * 0x3e | GMT G760Af | fan speed PWM controller
217 * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
218 * 0x68 | ST M41T80 | RTC w/ alarm
220 static struct i2c_board_info __initdata dns323_i2c_devices[] = {
222 I2C_BOARD_INFO("g760a", 0x3e),
225 /* this entry requires the new-style driver model lm75 driver,
226 * for the meantime "insmod lm75.ko force_lm75=0,0x48" is needed */
228 I2C_BOARD_INFO("g751", 0x48),
232 I2C_BOARD_INFO("m41t80", 0x68),
236 /* DNS-323 specific power off method */
237 static void dns323_power_off(void)
239 pr_info("%s: triggering power-off...\n", __func__);
240 gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
243 static void __init dns323_init(void)
245 /* Setup basic Orion functions. Need to be called early. */
248 /* setup flash mapping
249 * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
251 orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE);
253 /* DNS-323 has a Marvell 88X7042 SATA controller attached via PCIE
255 * Open a special address decode windows for the PCIE WA.
257 orion5x_setup_pcie_wa_win(ORION5X_PCIE_WA_PHYS_BASE,
258 ORION5X_PCIE_WA_SIZE);
260 /* set MPP to 0 as D-Link's 2.6.12.6 kernel did */
261 orion5x_write(MPP_0_7_CTRL, 0);
262 orion5x_write(MPP_8_15_CTRL, 0);
263 orion5x_write(MPP_16_19_CTRL, 0);
264 orion5x_write(MPP_DEV_CTRL, 0);
266 /* Define used GPIO pins
270 | 0 | | PEX_RST_OUT (not controlled by GPIO)
271 | 1 | Out | right amber LED (= sata ch0 LED) (low-active)
272 | 2 | Out | left amber LED (= sata ch1 LED) (low-active)
273 | 3 | Out | //unknown//
274 | 4 | Out | power button LED (low-active, together with pin #5)
275 | 5 | Out | power button LED (low-active, together with pin #4)
276 | 6 | In | GMT G751-2f overtemp. shutdown signal (low-active)
277 | 7 | In | M41T80 nIRQ/OUT/SQW signal
278 | 8 | Out | triggers power off (high-active)
279 | 9 | In | power button switch (low-active)
280 | 10 | In | reset button switch (low-active)
281 | 11 | Out | //unknown//
282 | 12 | Out | //unknown//
283 | 13 | Out | //unknown//
284 | 14 | Out | //unknown//
285 | 15 | Out | //unknown//
287 orion5x_gpio_set_valid_pins(0x07f6);
289 /* register dns323 specific power-off method */
290 if ((gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0)
291 || (gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0))
292 pr_err("DNS323: failed to setup power-off GPIO\n");
294 pm_power_off = dns323_power_off;
296 /* register flash and other platform devices */
297 platform_add_devices(dns323_plat_devices,
298 ARRAY_SIZE(dns323_plat_devices));
300 i2c_register_board_info(0, dns323_i2c_devices,
301 ARRAY_SIZE(dns323_i2c_devices));
303 orion5x_eth_init(&dns323_eth_data);
306 /* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
307 MACHINE_START(DNS323, "D-Link DNS-323")
308 /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
309 .phys_io = ORION5X_REGS_PHYS_BASE,
310 .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
311 .boot_params = 0x00000100,
312 .init_machine = dns323_init,
313 .map_io = orion5x_map_io,
314 .init_irq = orion5x_init_irq,
315 .timer = &orion5x_timer,
316 .fixup = tag_fixup_mem32,