[PATCH] mach-kirkwood: Add support for D-Link DNS-325
Jamie Lentin
jm at lentin.co.uk
Fri Oct 14 12:08:09 EDT 2011
This patch adds support for the D-Link DNS-325 NAS. A kirkwood-based successor
to the DNS-323.
Signed-off-by: Jamie Lentin <jm at lentin.co.uk>
---
The code is largely based on either other kirkwood devices or the DNS-323, so
there shouldn't be anything too weird. A few points though:-
* There are still unexplored sections of the hardware, a reset button and D-link
have an option to for "power-off recovery". Will continue to search the D-Link
code for them, but the NAS is pretty functional without for now.
* I'm not entirely convinced by permanently stealing the SATA power GPIOs,
however it seems safer than them possibly getting switched off accidentally.
* There's a high chance that the DNS-320 (a cheaper device released at the same
time, with ~identical specs) could be supported by the same setup file. This is
just speculation though, I've not got one of these.
* It'd be nice to expose the SATA activity LEDs as LEDs, and allow the mapping
to happen in software, but there doesn't seem to be a LED trigger for that yet
(unless I've missed something).
Cheers,
diff --git a/arch/arm/mach-kirkwood/Kconfig b/arch/arm/mach-kirkwood/Kconfig
index 7fc603b..9759cae 100644
--- a/arch/arm/mach-kirkwood/Kconfig
+++ b/arch/arm/mach-kirkwood/Kconfig
@@ -130,6 +130,12 @@ config MACH_T5325
Say 'Y' here if you want your kernel to support the
HP t5325 Thin Client.
+config MACH_DNS325
+ bool "D-Link DNS-325"
+ help
+ Say 'Y' here if you want your kernel to support the
+ D-Link DNS-325 NAS.
+
endmenu
endif
diff --git a/arch/arm/mach-kirkwood/Makefile b/arch/arm/mach-kirkwood/Makefile
index 5dcaa81..9b5d4ac 100644
--- a/arch/arm/mach-kirkwood/Makefile
+++ b/arch/arm/mach-kirkwood/Makefile
@@ -18,5 +18,6 @@ obj-$(CONFIG_MACH_D2NET_V2) += d2net_v2-setup.o lacie_v2-common.o
obj-$(CONFIG_MACH_NET2BIG_V2) += netxbig_v2-setup.o lacie_v2-common.o
obj-$(CONFIG_MACH_NET5BIG_V2) += netxbig_v2-setup.o lacie_v2-common.o
obj-$(CONFIG_MACH_T5325) += t5325-setup.o
+obj-$(CONFIG_MACH_DNS325) += dns325-setup.o
obj-$(CONFIG_CPU_IDLE) += cpuidle.o
diff --git a/arch/arm/mach-kirkwood/dns325-setup.c b/arch/arm/mach-kirkwood/dns325-setup.c
new file mode 100644
index 0000000..4e7d16a
--- /dev/null
+++ b/arch/arm/mach-kirkwood/dns325-setup.c
@@ -0,0 +1,315 @@
+/*
+ * arch/arm/mach-kirkwood/dns325-setup.c
+ *
+ * D-Link DNS-325 Setup
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/ata_platform.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+#include <linux/i2c.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+#include <linux/gpio-fan.h>
+#include <linux/input.h>
+#include <linux/leds.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <mach/kirkwood.h>
+#include "common.h"
+#include "mpp.h"
+
+static struct mtd_partition dns325_nand_parts[] = {
+ {
+ .name = "u-boot",
+ .offset = 0,
+ .size = SZ_1M,
+ .mask_flags = MTD_WRITEABLE
+ }, {
+ .name = "uImage",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = 5 * SZ_1M
+ }, {
+ .name = "ramdisk",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = 5 * SZ_1M
+ }, {
+ .name = "image",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = 102 * SZ_1M
+ }, {
+ .name = "mini firmware",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = 10 * SZ_1M
+ }, {
+ .name = "config",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = 5 * SZ_1M
+ },
+};
+
+static struct mv643xx_eth_platform_data dns325_ge00_data = {
+ .phy_addr = MV643XX_ETH_PHY_ADDR(8),
+};
+
+static struct mv_sata_platform_data dns325_sata_data = {
+ .n_ports = 2,
+};
+
+/*
+ * I2C-based devices
+ *
+ * i2c addr | chip | description
+ * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
+ * 0x0c | ?
+ * 0x64 | ?
+ */
+
+static struct i2c_board_info i2c_board_info[] __initdata = {
+ {
+ I2C_BOARD_INFO("lm75", 0x48),
+ },
+};
+
+
+/*
+ * GPIO-based devices
+ */
+
+static unsigned int dns325_mpp_config[] __initdata = {
+ MPP20_SATA1_ACTn, /* LED: White Right HDD */
+ MPP21_SATA0_ACTn, /* LED: White Left HDD */
+ MPP24_GPIO,
+ MPP25_GPIO,
+ MPP26_GPIO, /* LED: Power */
+ MPP27_GPIO, /* LED: Red Right HDD */
+ MPP28_GPIO, /* LED: Red Left HDD */
+ MPP29_GPIO, /* LED: Red USB */
+ MPP30_GPIO,
+ MPP31_GPIO,
+ MPP32_GPIO,
+ MPP33_GPO,
+ MPP34_GPIO, /* Button: Front power */
+ MPP35_GPIO,
+ MPP36_GPIO, /* Power: MV88F6281_DEV_ID Board */
+ MPP37_GPIO,
+ MPP38_GPIO,
+ MPP39_GPIO, /* Power: SATA0 */
+ MPP40_GPIO, /* Power: SATA1 */
+ MPP41_GPIO,
+ MPP42_GPIO,
+ MPP43_GPIO, /* LED: White USB */
+ MPP44_GPIO, /* Fan: Alarm */
+ MPP45_GPIO, /* Fan: high speed */
+ MPP46_GPIO, /* Fan: low speed */
+ MPP47_GPIO, /* Button: Back unmount */
+ MPP48_GPIO,
+ MPP49_GPIO,
+ 0
+};
+
+#define DNS325_GPIO_LED_POWER 26
+#define DNS325_GPIO_LED_RED_R 27
+#define DNS325_GPIO_LED_RED_L 28
+#define DNS325_GPIO_LED_RED_USB 29
+#define DNS325_GPIO_LED_WHITE_R 20
+#define DNS325_GPIO_LED_WHITE_L 21
+#define DNS325_GPIO_LED_WHITE_USB 43
+#define DNS325_GPIO_FAN_ALARM 44
+#define DNS325_GPIO_FAN_HIGH 45
+#define DNS325_GPIO_FAN_LOW 46
+#define DNS325_GPIO_BTN_POWER 34
+#define DNS325_GPIO_BTN_UNMOUNT 47
+#define DNS325_GPIO_POWER_6281 36
+#define DNS325_GPIO_POWER_SATA0 39
+#define DNS325_GPIO_POWER_SATA1 40
+
+static void dns325_6281_power_off(void)
+{
+ gpio_set_value(DNS325_GPIO_POWER_6281, 1);
+}
+
+/* Buttons */
+
+static struct gpio_keys_button dns325_button_pins[] = {
+ {
+ .code = KEY_POWER,
+ .gpio = DNS325_GPIO_BTN_POWER,
+ .desc = "Power button",
+ .active_low = 1,
+ },
+ {
+ .code = KEY_EJECTCD,
+ .gpio = DNS325_GPIO_BTN_UNMOUNT,
+ .desc = "USB unmount button",
+ .active_low = 1,
+ },
+};
+
+static struct gpio_keys_platform_data dns325_button_data = {
+ .buttons = dns325_button_pins,
+ .nbuttons = ARRAY_SIZE(dns325_button_pins),
+};
+
+static struct platform_device dns325_button_device = {
+ .name = "gpio-keys",
+ .id = -1,
+ .num_resources = 0,
+ .dev = {
+ .platform_data = &dns325_button_data,
+ }
+};
+
+/*
+ * LEDs
+ *
+ * In theory these can blink in hardware too, but it's really annoying.
+ */
+
+static struct gpio_led dns325_led_pins[] = {
+ {
+ .name = "dns325:white:power",
+ .gpio = DNS325_GPIO_LED_POWER,
+ .active_low = 1,
+ .default_trigger = "default-on",
+ },
+ {
+ .name = "dns325:white:usb",
+ .gpio = DNS325_GPIO_LED_WHITE_USB,
+ .active_low = 1,
+ },
+ {
+ .name = "dns325:red:l_hdd",
+ .gpio = DNS325_GPIO_LED_RED_L,
+ .active_low = 1,
+ },
+ {
+ .name = "dns325:red:r_hdd",
+ .gpio = DNS325_GPIO_LED_RED_R,
+ .active_low = 1,
+ },
+ {
+ .name = "dns325:red:usb",
+ .gpio = DNS325_GPIO_LED_RED_USB,
+ .active_low = 1,
+ },
+};
+
+static struct gpio_led_platform_data dns325_led_data = {
+ .num_leds = ARRAY_SIZE(dns325_led_pins),
+ .leds = dns325_led_pins,
+};
+
+static struct platform_device dns325_led_device = {
+ .name = "leds-gpio",
+ .id = -1,
+ .dev = {
+ .platform_data = &dns325_led_data,
+ },
+};
+
+/* Fan */
+
+/* DNS-325 Fan: ADDA AD045HB-G73 40mm 6000rpm at 5v */
+static struct gpio_fan_speed dns325_fan_speed[] = {
+ { 0, 0 },
+ { 3000, 1 },
+ { 6000, 2 },
+};
+
+static unsigned dns325_fan_pins[] = {
+ DNS325_GPIO_FAN_LOW,
+ DNS325_GPIO_FAN_HIGH,
+};
+
+static struct gpio_fan_alarm dns325_fan_alarm = {
+ .gpio = DNS325_GPIO_FAN_ALARM,
+ .active_low = 1,
+};
+
+static struct gpio_fan_platform_data dns325_fan_data = {
+ .num_ctrl = ARRAY_SIZE(dns325_fan_pins),
+ .ctrl = dns325_fan_pins,
+ .num_speed = ARRAY_SIZE(dns325_fan_speed),
+ .speed = dns325_fan_speed,
+ .alarm = &dns325_fan_alarm,
+};
+
+static struct platform_device dns325_fan_device = {
+ .name = "gpio-fan",
+ .id = -1,
+ .dev = {
+ .platform_data = &dns325_fan_data,
+ },
+};
+
+
+static void __init dns325_init(void)
+{
+ u32 dev, rev;
+
+ /*
+ * Basic setup. Needs to be called early.
+ */
+ kirkwood_init();
+ kirkwood_mpp_conf(dns325_mpp_config);
+
+ kirkwood_uart0_init();
+ kirkwood_nand_init(ARRAY_AND_SIZE(dns325_nand_parts), 25);
+ kirkwood_ehci_init();
+ kirkwood_i2c_init();
+ kirkwood_ge00_init(&dns325_ge00_data);
+
+ /* Turn on power to harddrives, then enable SATA */
+ if (gpio_request(DNS325_GPIO_POWER_SATA0, "sata0-power") == 0
+ && gpio_direction_output(DNS325_GPIO_POWER_SATA0, 0) == 0)
+ gpio_set_value(DNS325_GPIO_POWER_SATA0, 1);
+ else
+ pr_err("dns325: Failed to turn on SATA port 0\n");
+ if (gpio_request(DNS325_GPIO_POWER_SATA1, "sata1-power") == 0
+ && gpio_direction_output(DNS325_GPIO_POWER_SATA1, 0) == 0)
+ gpio_set_value(DNS325_GPIO_POWER_SATA1, 1);
+ else
+ pr_err("dns325: Failed to turn on SATA port 1\n");
+ kirkwood_sata_init(&dns325_sata_data);
+
+ platform_device_register(&dns325_led_device);
+ platform_device_register(&dns325_button_device);
+ platform_device_register(&dns325_fan_device);
+ i2c_register_board_info(0, i2c_board_info, ARRAY_SIZE(i2c_board_info));
+
+ kirkwood_pcie_id(&dev, &rev);
+ if (dev == MV88F6281_DEV_ID) {
+ pr_info("PCI-E Device ID: MV88F6281, configuring power-off");
+ if (gpio_request(DNS325_GPIO_POWER_6281, "power-off") == 0 &&
+ gpio_direction_output(DNS325_GPIO_POWER_6281, 0) == 0)
+ pm_power_off = dns325_6281_power_off;
+ else
+ pr_err("dns325: failed to configure power-off GPIO\n");
+ } else {
+ /*
+ * Dlink code also defines 0x6192, and sets LOW_BASE +
+ * 0x01000000 high. Either cargo-culted code or another model,
+ * e.g. the cheaper DNS-320.
+ */
+ pr_err("Unknown PCI-E Device ID %x, no power-off", dev);
+ }
+}
+
+MACHINE_START(DNS325, "D-Link DNS-325")
+ /* Maintainer: Jamie Lentin <jm at lentin.co.uk> */
+ .boot_params = 0x00000100,
+ .init_machine = dns325_init,
+ .map_io = kirkwood_map_io,
+ .init_early = kirkwood_init_early,
+ .init_irq = kirkwood_init_irq,
+ .timer = &kirkwood_timer,
+MACHINE_END
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