[PATCH] ARM: kirkwood: Add LS-XHL and LS-CHLv2 support
Michael Walle
michael at walle.cc
Mon Jul 16 16:55:44 EDT 2012
Add support for Buffalo Linkstation LS-XHL and LS-CHLv2 using the device
tree where possible.
Signed-off-by: Michael Walle <michael at walle.cc>
---
This patch is based on Andrew Lunn's kirkwood devicetree branch at:
git://github.com/lunn/linux.git v3.5-rc7-qnap-dt
arch/arm/boot/dts/kirkwood-lschlv2.dts | 20 +++++
arch/arm/boot/dts/kirkwood-lsxhl.dts | 20 +++++
arch/arm/boot/dts/kirkwood-lsxl.dtsi | 95 ++++++++++++++++++++++
arch/arm/mach-kirkwood/Kconfig | 8 ++
arch/arm/mach-kirkwood/Makefile | 1 +
arch/arm/mach-kirkwood/board-dt.c | 4 +
arch/arm/mach-kirkwood/board-lsxl.c | 137 ++++++++++++++++++++++++++++++++
arch/arm/mach-kirkwood/common.h | 6 ++
8 files changed, 291 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/boot/dts/kirkwood-lschlv2.dts
create mode 100644 arch/arm/boot/dts/kirkwood-lsxhl.dts
create mode 100644 arch/arm/boot/dts/kirkwood-lsxl.dtsi
create mode 100644 arch/arm/mach-kirkwood/board-lsxl.c
diff --git a/arch/arm/boot/dts/kirkwood-lschlv2.dts b/arch/arm/boot/dts/kirkwood-lschlv2.dts
new file mode 100644
index 0000000..37649b5
--- /dev/null
+++ b/arch/arm/boot/dts/kirkwood-lschlv2.dts
@@ -0,0 +1,20 @@
+/dts-v1/;
+
+/include/ "kirkwood-lsxl.dtsi"
+
+/ {
+ model = "Buffalo Linkstation LS-CHLv2";
+ compatible = "buffalo,lschlv2", "buffalo,lsxl", "mrvl,kirkwood-88f6281", "mrvl,kirkwood";
+
+ memory {
+ device_type = "memory";
+ reg = <0x00000000 0x4000000>;
+ };
+
+ ocp at f1000000 {
+ serial at 12000 {
+ clock-frequency = <166666667>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/kirkwood-lsxhl.dts b/arch/arm/boot/dts/kirkwood-lsxhl.dts
new file mode 100644
index 0000000..eb3c071
--- /dev/null
+++ b/arch/arm/boot/dts/kirkwood-lsxhl.dts
@@ -0,0 +1,20 @@
+/dts-v1/;
+
+/include/ "kirkwood-lsxl.dtsi"
+
+/ {
+ model = "Buffalo Linkstation LS-XHL";
+ compatible = "buffalo,lsxhl", "buffalo,lsxl", "mrvl,kirkwood-88f6281", "mrvl,kirkwood";
+
+ memory {
+ device_type = "memory";
+ reg = <0x00000000 0x10000000>;
+ };
+
+ ocp at f1000000 {
+ serial at 12000 {
+ clock-frequency = <200000000>;
+ status = "okay";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/kirkwood-lsxl.dtsi b/arch/arm/boot/dts/kirkwood-lsxl.dtsi
new file mode 100644
index 0000000..5961d85
--- /dev/null
+++ b/arch/arm/boot/dts/kirkwood-lsxl.dtsi
@@ -0,0 +1,95 @@
+/include/ "kirkwood.dtsi"
+
+/ {
+ chosen {
+ bootargs = "console=ttyS0,115200n8 earlyprintk";
+ };
+
+ ocp at f1000000 {
+ sata at 80000 {
+ status = "okay";
+ nr-ports = <1>;
+ };
+
+ spi at 10600 {
+ status = "okay";
+
+ m25p40 at 0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "m25p40";
+ reg = <0>;
+ spi-max-frequency = <25000000>;
+ mode = <0>;
+
+ partition at 0 {
+ reg = <0x0 0x60000>;
+ label = "uboot";
+ read-only;
+ };
+
+ partition at 60000 {
+ reg = <0x60000 0x10000>;
+ label = "dtb";
+ read-only;
+ };
+
+ partition at 70000 {
+ reg = <0x70000 0x10000>;
+ label = "uboot_env";
+ };
+ };
+ };
+ };
+
+ gpio_keys {
+ compatible = "gpio-keys";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ button at 1 {
+ label = "Function Button";
+ linux,code = <1>;
+ gpios = <&gpio1 9 1>;
+ };
+ button at 2 {
+ label = "Power-on Switch";
+ linux,code = <2>;
+ gpios = <&gpio1 10 1>;
+ };
+ button at 3 {
+ label = "Power-auto Switch";
+ linux,code = <3>;
+ gpios = <&gpio1 11 1>;
+ };
+ };
+
+ gpio_leds {
+ compatible = "gpio-leds";
+
+ led at 1 {
+ label = "lschlv2:blue:func";
+ gpios = <&gpio1 4 1>;
+ };
+
+ led at 2 {
+ label = "lschlv2:red:alarm";
+ gpios = <&gpio1 5 1>;
+ };
+
+ led at 3 {
+ label = "lschlv2:amber:info";
+ gpios = <&gpio1 6 1>;
+ };
+
+ led at 4 {
+ label = "lschlv2:blue:power";
+ gpios = <&gpio1 7 1>;
+ linux,default-trigger = "default-on";
+ };
+
+ led at 5 {
+ label = "lschlv2:red:func";
+ gpios = <&gpio1 16 1>;
+ };
+ };
+};
diff --git a/arch/arm/mach-kirkwood/Kconfig b/arch/arm/mach-kirkwood/Kconfig
index 8e62fa7..77c0f0f 100644
--- a/arch/arm/mach-kirkwood/Kconfig
+++ b/arch/arm/mach-kirkwood/Kconfig
@@ -94,6 +94,14 @@ config MACH_TS219_DT
or MV6282. If you have the wrong one, the buttons will not
work.
+config MACH_LSXL_DT
+ bool "Buffalo Linkstation LS-XHL, LS-CHLv2 (Flattened Device Tree)"
+ select ARCH_KIRKWOOD_DT
+ help
+ Say 'Y' here if you want your kernel to support the
+ Buffalo Linkstation LS-XHL & LS-CHLv2 devices, using
+ Flattened Device Tree.
+
config MACH_TS219
bool "QNAP TS-110, TS-119, TS-119P+, TS-210, TS-219, TS-219P and TS-219P+ Turbo NAS"
help
diff --git a/arch/arm/mach-kirkwood/Makefile b/arch/arm/mach-kirkwood/Makefile
index 0468b23..8def9fe 100644
--- a/arch/arm/mach-kirkwood/Makefile
+++ b/arch/arm/mach-kirkwood/Makefile
@@ -26,3 +26,4 @@ obj-$(CONFIG_MACH_ICONNECT_DT) += board-iconnect.o
obj-$(CONFIG_MACH_DLINK_KIRKWOOD_DT) += board-dnskw.o
obj-$(CONFIG_MACH_IB62X0_DT) += board-ib62x0.o
obj-$(CONFIG_MACH_TS219_DT) += board-ts219.o
+obj-$(CONFIG_MACH_LSXL_DT) += board-lsxl.o
diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
index d0ad250..da1bda8 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/arch/arm/mach-kirkwood/board-dt.c
@@ -80,6 +80,9 @@ static void __init kirkwood_dt_init(void)
if (of_machine_is_compatible("qnap,ts219"))
qnap_dt_ts219_init();
+ if (of_machine_is_compatible("buffalo,lsxl"))
+ lsxl_init();
+
of_platform_populate(NULL, kirkwood_dt_match_table,
kirkwood_auxdata_lookup, NULL);
}
@@ -91,6 +94,7 @@ static const char *kirkwood_dt_board_compat[] = {
"iom,iconnect",
"raidsonic,ib-nas62x0",
"qnap,ts219",
+ "buffalo,lsxl",
NULL
};
diff --git a/arch/arm/mach-kirkwood/board-lsxl.c b/arch/arm/mach-kirkwood/board-lsxl.c
new file mode 100644
index 0000000..a06ed79
--- /dev/null
+++ b/arch/arm/mach-kirkwood/board-lsxl.c
@@ -0,0 +1,137 @@
+/*
+ * Copyright 2012 (C), Michael Walle <michael at walle.cc>
+ *
+ * arch/arm/mach-kirkwood/board-lsxl.c
+ *
+ * Buffalo Linkstation LS-XHL and LS-CHLv2 init for drivers not
+ * converted to flattened device tree yet.
+ *
+ * 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/mtd/partitions.h>
+#include <linux/ata_platform.h>
+#include <linux/spi/flash.h>
+#include <linux/spi/spi.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 mv643xx_eth_platform_data lsxl_ge00_data = {
+ .phy_addr = MV643XX_ETH_PHY_ADDR(0),
+};
+
+static struct mv643xx_eth_platform_data lsxl_ge01_data = {
+ .phy_addr = MV643XX_ETH_PHY_ADDR(8),
+};
+
+static unsigned int lsxl_mpp_config[] __initdata = {
+ MPP10_GPO, /* HDD Power Enable */
+ MPP11_GPIO, /* USB Vbus Enable */
+ MPP18_GPO, /* FAN High Enable# */
+ MPP19_GPO, /* FAN Low Enable# */
+ MPP36_GPIO, /* Function Blue LED */
+ MPP37_GPIO, /* Alarm LED */
+ MPP38_GPIO, /* Info LED */
+ MPP39_GPIO, /* Power LED */
+ MPP40_GPIO, /* Fan Lock */
+ MPP41_GPIO, /* Function Button */
+ MPP42_GPIO, /* Power Switch */
+ MPP43_GPIO, /* Power Auto Switch */
+ MPP48_GPIO, /* Function Red LED */
+ 0
+};
+
+#define LSXL_GPIO_FAN_HIGH 18
+#define LSXL_GPIO_FAN_LOW 19
+#define LSXL_GPIO_FAN_LOCK 40
+
+static struct gpio_fan_alarm lsxl_alarm = {
+ .gpio = LSXL_GPIO_FAN_LOCK,
+};
+
+static struct gpio_fan_speed lsxl_speeds[] = {
+ {
+ .rpm = 0,
+ .ctrl_val = 3,
+ }, {
+ .rpm = 1500,
+ .ctrl_val = 1,
+ }, {
+ .rpm = 3250,
+ .ctrl_val = 2,
+ }, {
+ .rpm = 5000,
+ .ctrl_val = 0,
+ }
+};
+
+static int lsxl_gpio_list[] = {
+ LSXL_GPIO_FAN_HIGH, LSXL_GPIO_FAN_LOW,
+};
+
+static struct gpio_fan_platform_data lsxl_fan_data = {
+ .num_ctrl = ARRAY_SIZE(lsxl_gpio_list),
+ .ctrl = lsxl_gpio_list,
+ .alarm = &lsxl_alarm,
+ .num_speed = ARRAY_SIZE(lsxl_speeds),
+ .speed = lsxl_speeds,
+};
+
+static struct platform_device lsxl_fan_device = {
+ .name = "gpio-fan",
+ .id = -1,
+ .num_resources = 0,
+ .dev = {
+ .platform_data = &lsxl_fan_data,
+ },
+};
+
+/*
+ * On the LS-XHL/LS-CHLv2, the shutdown process is following:
+ * - Userland monitors key events until the power switch goes to off position
+ * - The board reboots
+ * - U-boot starts and goes into an idle mode waiting for the user
+ * to move the switch to ON position
+ *
+ */
+static void lsxl_power_off(void)
+{
+ kirkwood_restart('h', NULL);
+}
+
+#define LSXL_GPIO_HDD_POWER 10
+#define LSXL_GPIO_USB_POWER 11
+
+void __init lsxl_init(void)
+{
+ /*
+ * Basic setup. Needs to be called early.
+ */
+ kirkwood_mpp_conf(lsxl_mpp_config);
+
+ /* usb and sata power on */
+ gpio_set_value(LSXL_GPIO_USB_POWER, 1);
+ gpio_set_value(LSXL_GPIO_HDD_POWER, 1);
+
+ kirkwood_ehci_init();
+ kirkwood_ge00_init(&lsxl_ge00_data);
+ kirkwood_ge01_init(&lsxl_ge01_data);
+ platform_device_register(&lsxl_fan_device);
+
+ /* register power-off method */
+ pm_power_off = lsxl_power_off;
+}
diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h
index e0c2324..2ef6d19 100644
--- a/arch/arm/mach-kirkwood/common.h
+++ b/arch/arm/mach-kirkwood/common.h
@@ -82,6 +82,12 @@ void ib62x0_init(void);
static inline void ib62x0_init(void) {};
#endif
+#ifdef CONFIG_MACH_LSXL_DT
+void lsxl_init(void);
+#else
+static inline void lsxl_init(void) {};
+#endif
+
/* early init functions not converted to fdt yet */
char *kirkwood_id(void);
void kirkwood_l2_init(void);
--
1.7.2.5
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