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/mv643xx_eth.h>
18 #include <linux/gpio.h>
22 static struct mv643xx_eth_platform_data dnskw_ge00_data = {
23 .phy_addr = MV643XX_ETH_PHY_ADDR(8),
26 static unsigned int dnskw_mpp_config[] __initdata = {
27 MPP13_UART1_TXD, /* Custom ... */
28 MPP14_UART1_RXD, /* ... Controller (DNS-320 only) */
29 MPP20_SATA1_ACTn, /* LED: White Right HDD */
30 MPP21_SATA0_ACTn, /* LED: White Left HDD */
33 MPP26_GPIO, /* LED: Power */
34 MPP27_GPIO, /* LED: Red Right HDD */
35 MPP28_GPIO, /* LED: Red Left HDD */
36 MPP29_GPIO, /* LED: Red USB (DNS-325 only) */
41 MPP34_GPIO, /* Button: Front power */
42 MPP35_GPIO, /* LED: Red USB (DNS-320 only) */
43 MPP36_GPIO, /* Power: Turn off board */
44 MPP37_GPIO, /* Power: Turn back on after power failure */
46 MPP39_GPIO, /* Power: SATA0 */
47 MPP40_GPIO, /* Power: SATA1 */
48 MPP41_GPIO, /* SATA0 present */
49 MPP42_GPIO, /* SATA1 present */
50 MPP43_GPIO, /* LED: White USB */
51 MPP44_GPIO, /* Fan: Tachometer Pin */
52 MPP45_GPIO, /* Fan: high speed */
53 MPP46_GPIO, /* Fan: low speed */
54 MPP47_GPIO, /* Button: Back unmount */
55 MPP48_GPIO, /* Button: Back reset */
56 MPP49_GPIO, /* Temp Alarm (DNS-325) Pin of U5 (DNS-320) */
60 static void dnskw_power_off(void)
62 gpio_set_value(36, 1);
65 /* Register any GPIO for output and set the value */
66 static void __init dnskw_gpio_register(unsigned gpio, char *name, int def)
68 if (gpio_request(gpio, name) == 0 &&
69 gpio_direction_output(gpio, 0) == 0) {
70 gpio_set_value(gpio, def);
71 if (gpio_export(gpio, 0) != 0)
72 pr_err("dnskw: Failed to export GPIO %s\n", name);
74 pr_err("dnskw: Failed to register %s\n", name);
77 void __init dnskw_init(void)
79 kirkwood_mpp_conf(dnskw_mpp_config);
82 kirkwood_ge00_init(&dnskw_ge00_data);
84 /* Register power-off GPIO. */
85 if (gpio_request(36, "dnskw:power:off") == 0
86 && gpio_direction_output(36, 0) == 0)
87 pm_power_off = dnskw_power_off;
89 pr_err("dnskw: failed to configure power-off GPIO\n");
91 /* Ensure power is supplied to both HDDs */
92 dnskw_gpio_register(39, "dnskw:power:sata0", 1);
93 dnskw_gpio_register(40, "dnskw:power:sata1", 1);
95 /* Set NAS to turn back on after a power failure */
96 dnskw_gpio_register(37, "dnskw:power:recover", 1);