2 * arch/arm/mach-orion/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/orion.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
== orion_pcie_local_bus_nr())
48 return IRQ_ORION_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
= orion_pci_sys_setup
,
59 .scan
= orion_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),
226 /* this entry requires the new-style driver model lm75 driver,
227 * for the meantime "insmod lm75.ko force_lm75=0,0x48" is needed */
229 I2C_BOARD_INFO("lm75", 0x48),
234 I2C_BOARD_INFO("rtc-m41t80", 0x68),
239 /* DNS-323 specific power off method */
240 static void dns323_power_off(void)
242 pr_info("%s: triggering power-off...\n", __func__
);
243 gpio_set_value(DNS323_GPIO_POWER_OFF
, 1);
246 static void __init
dns323_init(void)
248 /* Setup basic Orion functions. Need to be called early. */
251 /* setup flash mapping
252 * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
254 orion_setup_cpu_win(ORION_DEV_BOOT
, DNS323_NOR_BOOT_BASE
,
255 DNS323_NOR_BOOT_SIZE
, -1);
257 /* DNS-323 has a Marvell 88X7042 SATA controller attached via PCIE
259 * Open a special address decode windows for the PCIE WA.
261 orion_write(ORION_REGS_VIRT_BASE
| 0x20074, ORION_PCIE_WA_PHYS_BASE
);
262 orion_write(ORION_REGS_VIRT_BASE
| 0x20070,
263 (0x7941 | (((ORION_PCIE_WA_SIZE
>> 16) - 1)) << 16));
265 /* set MPP to 0 as D-Link's 2.6.12.6 kernel did */
266 orion_write(MPP_0_7_CTRL
, 0);
267 orion_write(MPP_8_15_CTRL
, 0);
268 orion_write(MPP_16_19_CTRL
, 0);
269 orion_write(MPP_DEV_CTRL
, 0);
271 /* Define used GPIO pins
275 | 0 | | PEX_RST_OUT (not controlled by GPIO)
276 | 1 | Out | right amber LED (= sata ch0 LED) (low-active)
277 | 2 | Out | left amber LED (= sata ch1 LED) (low-active)
278 | 3 | Out | //unknown//
279 | 4 | Out | power button LED (low-active, together with pin #5)
280 | 5 | Out | power button LED (low-active, together with pin #4)
281 | 6 | In | GMT G751-2f overtemp. shutdown signal (low-active)
282 | 7 | In | M41T80 nIRQ/OUT/SQW signal
283 | 8 | Out | triggers power off (high-active)
284 | 9 | In | power button switch (low-active)
285 | 10 | In | reset button switch (low-active)
286 | 11 | Out | //unknown//
287 | 12 | Out | //unknown//
288 | 13 | Out | //unknown//
289 | 14 | Out | //unknown//
290 | 15 | Out | //unknown//
292 orion_gpio_set_valid_pins(0x07f6);
294 /* register dns323 specific power-off method */
295 if ((gpio_request(DNS323_GPIO_POWER_OFF
, "POWEROFF") != 0)
296 || (gpio_direction_output(DNS323_GPIO_POWER_OFF
, 0) != 0))
297 pr_err("DNS323: failed to setup power-off GPIO\n");
299 pm_power_off
= dns323_power_off
;
301 /* register flash and other platform devices */
302 platform_add_devices(dns323_plat_devices
,
303 ARRAY_SIZE(dns323_plat_devices
));
305 i2c_register_board_info(0, dns323_i2c_devices
,
306 ARRAY_SIZE(dns323_i2c_devices
));
308 orion_eth_init(&dns323_eth_data
);
311 /* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
312 MACHINE_START(DNS323
, "D-Link DNS-323")
313 /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
314 .phys_io
= ORION_REGS_PHYS_BASE
,
315 .io_pg_offst
= ((ORION_REGS_VIRT_BASE
) >> 18) & 0xFFFC,
316 .boot_params
= 0x00000100,
317 .init_machine
= dns323_init
,
318 .map_io
= orion_map_io
,
319 .init_irq
= orion_init_irq
,
320 .timer
= &orion_timer
,
321 .fixup
= tag_fixup_mem32
,