2 * Copyright 2012 (C), Jamie Lentin <jm@lentin.co.uk>
4 * arch/arm/mach-kirkwood/board-dnskw.c
6 * D-link DNS-320 & DNS-325 NAS Init for drivers not converted to
7 * flattened device tree yet.
9 * This file is licensed under the terms of the GNU General Public
10 * License version 2. This program is licensed "as is" without any
11 * warranty of any kind, whether express or implied.
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
17 #include <linux/ata_platform.h>
18 #include <linux/mv643xx_eth.h>
20 #include <linux/gpio.h>
21 #include <linux/input.h>
22 #include <linux/gpio-fan.h>
23 #include <linux/leds.h>
24 #include <asm/mach-types.h>
25 #include <asm/mach/arch.h>
26 #include <asm/mach/map.h>
27 #include <mach/kirkwood.h>
28 #include <mach/bridge-regs.h>
32 static struct mv643xx_eth_platform_data dnskw_ge00_data = {
33 .phy_addr = MV643XX_ETH_PHY_ADDR(8),
36 static unsigned int dnskw_mpp_config[] __initdata = {
37 MPP13_UART1_TXD, /* Custom ... */
38 MPP14_UART1_RXD, /* ... Controller (DNS-320 only) */
39 MPP20_SATA1_ACTn, /* LED: White Right HDD */
40 MPP21_SATA0_ACTn, /* LED: White Left HDD */
43 MPP26_GPIO, /* LED: Power */
44 MPP27_GPIO, /* LED: Red Right HDD */
45 MPP28_GPIO, /* LED: Red Left HDD */
46 MPP29_GPIO, /* LED: Red USB (DNS-325 only) */
51 MPP34_GPIO, /* Button: Front power */
52 MPP35_GPIO, /* LED: Red USB (DNS-320 only) */
53 MPP36_GPIO, /* Power: Turn off board */
54 MPP37_GPIO, /* Power: Turn back on after power failure */
56 MPP39_GPIO, /* Power: SATA0 */
57 MPP40_GPIO, /* Power: SATA1 */
58 MPP41_GPIO, /* SATA0 present */
59 MPP42_GPIO, /* SATA1 present */
60 MPP43_GPIO, /* LED: White USB */
61 MPP44_GPIO, /* Fan: Tachometer Pin */
62 MPP45_GPIO, /* Fan: high speed */
63 MPP46_GPIO, /* Fan: low speed */
64 MPP47_GPIO, /* Button: Back unmount */
65 MPP48_GPIO, /* Button: Back reset */
66 MPP49_GPIO, /* Temp Alarm (DNS-325) Pin of U5 (DNS-320) */
70 /* Fan: ADDA AD045HB-G73 40mm 6000rpm@5v */
71 static struct gpio_fan_speed dnskw_fan_speed[] = {
76 static unsigned dnskw_fan_pins[] = {46, 45};
78 static struct gpio_fan_platform_data dnskw_fan_data = {
79 .num_ctrl = ARRAY_SIZE(dnskw_fan_pins),
80 .ctrl = dnskw_fan_pins,
81 .num_speed = ARRAY_SIZE(dnskw_fan_speed),
82 .speed = dnskw_fan_speed,
85 static struct platform_device dnskw_fan_device = {
89 .platform_data = &dnskw_fan_data,
93 static void dnskw_power_off(void)
95 gpio_set_value(36, 1);
98 /* Register any GPIO for output and set the value */
99 static void __init dnskw_gpio_register(unsigned gpio, char *name, int def)
101 if (gpio_request(gpio, name) == 0 &&
102 gpio_direction_output(gpio, 0) == 0) {
103 gpio_set_value(gpio, def);
104 if (gpio_export(gpio, 0) != 0)
105 pr_err("dnskw: Failed to export GPIO %s\n", name);
107 pr_err("dnskw: Failed to register %s\n", name);
110 void __init dnskw_init(void)
112 kirkwood_mpp_conf(dnskw_mpp_config);
114 kirkwood_ehci_init();
115 kirkwood_ge00_init(&dnskw_ge00_data);
117 platform_device_register(&dnskw_fan_device);
119 /* Register power-off GPIO. */
120 if (gpio_request(36, "dnskw:power:off") == 0
121 && gpio_direction_output(36, 0) == 0)
122 pm_power_off = dnskw_power_off;
124 pr_err("dnskw: failed to configure power-off GPIO\n");
126 /* Ensure power is supplied to both HDDs */
127 dnskw_gpio_register(39, "dnskw:power:sata0", 1);
128 dnskw_gpio_register(40, "dnskw:power:sata1", 1);
130 /* Set NAS to turn back on after a power failure */
131 dnskw_gpio_register(37, "dnskw:power:recover", 1);