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
)
49 * Check for devices with hard-wired IRQs.
51 irq
= orion5x_pci_map_irq(dev
, slot
, pin
);
55 pr_err("%s: requested mapping for unknown device\n", __func__
);
60 static struct hw_pci dns323_pci __initdata
= {
62 .swizzle
= pci_std_swizzle
,
63 .setup
= orion5x_pci_sys_setup
,
64 .scan
= orion5x_pci_sys_scan_bus
,
65 .map_irq
= dns323_pci_map_irq
,
68 static int __init
dns323_pci_init(void)
70 if (machine_is_dns323())
71 pci_common_init(&dns323_pci
);
76 subsys_initcall(dns323_pci_init
);
78 /****************************************************************************
82 static struct mv643xx_eth_platform_data dns323_eth_data
= {
87 /****************************************************************************
88 * 8MiB NOR flash (Spansion S29GL064M90TFIR4)
90 * Layout as used by D-Link:
91 * 0x00000000-0x00010000 : "MTD1"
92 * 0x00010000-0x00020000 : "MTD2"
93 * 0x00020000-0x001a0000 : "Linux Kernel"
94 * 0x001a0000-0x007d0000 : "File System"
95 * 0x007d0000-0x00800000 : "u-boot"
98 #define DNS323_NOR_BOOT_BASE 0xf4000000
99 #define DNS323_NOR_BOOT_SIZE SZ_8M
101 static struct mtd_partition dns323_partitions
[] = {
109 .offset
= 0x00010000,
111 .name
= "Linux Kernel",
113 .offset
= 0x00020000,
115 .name
= "File System",
117 .offset
= 0x001A0000,
121 .offset
= 0x007d0000,
125 static struct physmap_flash_data dns323_nor_flash_data
= {
127 .parts
= dns323_partitions
,
128 .nr_parts
= ARRAY_SIZE(dns323_partitions
)
131 static struct resource dns323_nor_flash_resource
= {
132 .flags
= IORESOURCE_MEM
,
133 .start
= DNS323_NOR_BOOT_BASE
,
134 .end
= DNS323_NOR_BOOT_BASE
+ DNS323_NOR_BOOT_SIZE
- 1,
137 static struct platform_device dns323_nor_flash
= {
138 .name
= "physmap-flash",
141 .platform_data
= &dns323_nor_flash_data
,
143 .resource
= &dns323_nor_flash_resource
,
147 /****************************************************************************
148 * GPIO LEDs (simple - doesn't use hardware blinking support)
151 static struct gpio_led dns323_leds
[] = {
153 .name
= "power:blue",
154 .gpio
= DNS323_GPIO_LED_POWER
,
157 .name
= "right:amber",
158 .gpio
= DNS323_GPIO_LED_RIGHT_AMBER
,
161 .name
= "left:amber",
162 .gpio
= DNS323_GPIO_LED_LEFT_AMBER
,
167 static struct gpio_led_platform_data dns323_led_data
= {
168 .num_leds
= ARRAY_SIZE(dns323_leds
),
172 static struct platform_device dns323_gpio_leds
= {
176 .platform_data
= &dns323_led_data
,
180 /****************************************************************************
184 static struct gpio_keys_button dns323_buttons
[] = {
187 .gpio
= DNS323_GPIO_KEY_RESET
,
188 .desc
= "Reset Button",
192 .gpio
= DNS323_GPIO_KEY_POWER
,
193 .desc
= "Power Button",
198 static struct gpio_keys_platform_data dns323_button_data
= {
199 .buttons
= dns323_buttons
,
200 .nbuttons
= ARRAY_SIZE(dns323_buttons
),
203 static struct platform_device dns323_button_device
= {
208 .platform_data
= &dns323_button_data
,
212 /****************************************************************************
216 static struct platform_device
*dns323_plat_devices
[] __initdata
= {
219 &dns323_button_device
,
223 * On the DNS-323 the following devices are attached via I2C:
225 * i2c addr | chip | description
226 * 0x3e | GMT G760Af | fan speed PWM controller
227 * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
228 * 0x68 | ST M41T80 | RTC w/ alarm
230 static struct i2c_board_info __initdata dns323_i2c_devices
[] = {
232 I2C_BOARD_INFO("g760a", 0x3e),
234 /* this entry requires the new-style driver model lm75 driver,
235 * for the meantime "insmod lm75.ko force_lm75=0,0x48" is needed */
237 I2C_BOARD_INFO("g751", 0x48),
240 I2C_BOARD_INFO("m41t80", 0x68),
244 /* DNS-323 specific power off method */
245 static void dns323_power_off(void)
247 pr_info("%s: triggering power-off...\n", __func__
);
248 gpio_set_value(DNS323_GPIO_POWER_OFF
, 1);
251 static void __init
dns323_init(void)
253 /* Setup basic Orion functions. Need to be called early. */
256 /* setup flash mapping
257 * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
259 orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE
, DNS323_NOR_BOOT_SIZE
);
261 /* DNS-323 has a Marvell 88X7042 SATA controller attached via PCIe
263 * Open a special address decode windows for the PCIe WA.
265 orion5x_setup_pcie_wa_win(ORION5X_PCIE_WA_PHYS_BASE
,
266 ORION5X_PCIE_WA_SIZE
);
268 /* set MPP to 0 as D-Link's 2.6.12.6 kernel did */
269 orion5x_write(MPP_0_7_CTRL
, 0);
270 orion5x_write(MPP_8_15_CTRL
, 0);
271 orion5x_write(MPP_16_19_CTRL
, 0);
272 orion5x_write(MPP_DEV_CTRL
, 0);
274 /* Define used GPIO pins
278 | 0 | | PEX_RST_OUT (not controlled by GPIO)
279 | 1 | Out | right amber LED (= sata ch0 LED) (low-active)
280 | 2 | Out | left amber LED (= sata ch1 LED) (low-active)
281 | 3 | Out | //unknown//
282 | 4 | Out | power button LED (low-active, together with pin #5)
283 | 5 | Out | power button LED (low-active, together with pin #4)
284 | 6 | In | GMT G751-2f overtemp. shutdown signal (low-active)
285 | 7 | In | M41T80 nIRQ/OUT/SQW signal
286 | 8 | Out | triggers power off (high-active)
287 | 9 | In | power button switch (low-active)
288 | 10 | In | reset button switch (low-active)
289 | 11 | Out | //unknown//
290 | 12 | Out | //unknown//
291 | 13 | Out | //unknown//
292 | 14 | Out | //unknown//
293 | 15 | Out | //unknown//
295 orion5x_gpio_set_valid_pins(0x07f6);
297 /* register dns323 specific power-off method */
298 if (gpio_request(DNS323_GPIO_POWER_OFF
, "POWEROFF") != 0 ||
299 gpio_direction_output(DNS323_GPIO_POWER_OFF
, 0) != 0)
300 pr_err("DNS323: failed to setup power-off GPIO\n");
302 pm_power_off
= dns323_power_off
;
304 /* register flash and other platform devices */
305 platform_add_devices(dns323_plat_devices
,
306 ARRAY_SIZE(dns323_plat_devices
));
308 i2c_register_board_info(0, dns323_i2c_devices
,
309 ARRAY_SIZE(dns323_i2c_devices
));
311 orion5x_eth_init(&dns323_eth_data
);
314 /* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
315 MACHINE_START(DNS323
, "D-Link DNS-323")
316 /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
317 .phys_io
= ORION5X_REGS_PHYS_BASE
,
318 .io_pg_offst
= ((ORION5X_REGS_VIRT_BASE
) >> 18) & 0xFFFC,
319 .boot_params
= 0x00000100,
320 .init_machine
= dns323_init
,
321 .map_io
= orion5x_map_io
,
322 .init_irq
= orion5x_init_irq
,
323 .timer
= &orion5x_timer
,
324 .fixup
= tag_fixup_mem32
,