MIPS: Malta: Use syscon-reboot driver to reboot
Make use of the generic syscon-reboot driver to reboot the Malta board,
reducing the amount of platform code it requires.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Stephan Linz <linz@li-pro.net>
Cc: Jacek Anaszewski <j.anaszewski@samsung.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14279/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/boot/dts/mti/malta.dts b/arch/mips/boot/dts/mti/malta.dts
index 48783b1..f604a27 100644
--- a/arch/mips/boot/dts/mti/malta.dts
+++ b/arch/mips/boot/dts/mti/malta.dts
@@ -81,6 +81,18 @@
};
};
+ fpga_regs: system-controller@1f000000 {
+ compatible = "mti,malta-fpga", "syscon", "simple-mfd";
+ reg = <0x1f000000 0x1000>;
+
+ reboot {
+ compatible = "syscon-reboot";
+ regmap = <&fpga_regs>;
+ offset = <0x500>;
+ mask = <0x4d>;
+ };
+ };
+
isa {
compatible = "isa";
#address-cells = <2>;
diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig
index d5d4816..58d43f3 100644
--- a/arch/mips/configs/malta_defconfig
+++ b/arch/mips/configs/malta_defconfig
@@ -318,6 +318,8 @@
# CONFIG_SERIO_I8042 is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
# CONFIG_HWMON is not set
CONFIG_FB=y
CONFIG_FB_CIRRUS=y
diff --git a/arch/mips/configs/malta_kvm_defconfig b/arch/mips/configs/malta_kvm_defconfig
index ef6ef24..c8f7e28 100644
--- a/arch/mips/configs/malta_kvm_defconfig
+++ b/arch/mips/configs/malta_kvm_defconfig
@@ -331,6 +331,8 @@
# CONFIG_SERIO_I8042 is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
# CONFIG_HWMON is not set
CONFIG_FB=y
CONFIG_FB_CIRRUS=y
diff --git a/arch/mips/configs/malta_kvm_guest_defconfig b/arch/mips/configs/malta_kvm_guest_defconfig
index 3a49a77..d2f54e5 100644
--- a/arch/mips/configs/malta_kvm_guest_defconfig
+++ b/arch/mips/configs/malta_kvm_guest_defconfig
@@ -331,6 +331,8 @@
# CONFIG_SERIO_I8042 is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
# CONFIG_HWMON is not set
CONFIG_FB=y
CONFIG_FB_CIRRUS=y
diff --git a/arch/mips/configs/malta_qemu_32r6_defconfig b/arch/mips/configs/malta_qemu_32r6_defconfig
index 65f140e..cbf37dd 100644
--- a/arch/mips/configs/malta_qemu_32r6_defconfig
+++ b/arch/mips/configs/malta_qemu_32r6_defconfig
@@ -132,6 +132,8 @@
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_HW_RANDOM=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
# CONFIG_HWMON is not set
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
diff --git a/arch/mips/configs/maltaaprp_defconfig b/arch/mips/configs/maltaaprp_defconfig
index 799c433..35f6ba2 100644
--- a/arch/mips/configs/maltaaprp_defconfig
+++ b/arch/mips/configs/maltaaprp_defconfig
@@ -132,6 +132,8 @@
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_HW_RANDOM=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
# CONFIG_HWMON is not set
CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
diff --git a/arch/mips/configs/maltasmvp_defconfig b/arch/mips/configs/maltasmvp_defconfig
index ac0eb4d..900f145 100644
--- a/arch/mips/configs/maltasmvp_defconfig
+++ b/arch/mips/configs/maltasmvp_defconfig
@@ -134,6 +134,8 @@
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_HW_RANDOM=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
# CONFIG_HWMON is not set
CONFIG_FB=y
CONFIG_FIRMWARE_EDID=y
diff --git a/arch/mips/configs/maltasmvp_eva_defconfig b/arch/mips/configs/maltasmvp_eva_defconfig
index 3184600..8e2738b 100644
--- a/arch/mips/configs/maltasmvp_eva_defconfig
+++ b/arch/mips/configs/maltasmvp_eva_defconfig
@@ -137,6 +137,8 @@
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_HW_RANDOM=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
# CONFIG_HWMON is not set
CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
diff --git a/arch/mips/configs/maltaup_defconfig b/arch/mips/configs/maltaup_defconfig
index a79107d..6dc4e30 100644
--- a/arch/mips/configs/maltaup_defconfig
+++ b/arch/mips/configs/maltaup_defconfig
@@ -131,6 +131,8 @@
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_HW_RANDOM=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
# CONFIG_HWMON is not set
CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_FB=y
diff --git a/arch/mips/configs/maltaup_xpa_defconfig b/arch/mips/configs/maltaup_xpa_defconfig
index 62e05eb..3d0d9cb 100644
--- a/arch/mips/configs/maltaup_xpa_defconfig
+++ b/arch/mips/configs/maltaup_xpa_defconfig
@@ -326,6 +326,8 @@
# CONFIG_SERIO_I8042 is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_SYSCON=y
# CONFIG_HWMON is not set
CONFIG_FB=y
CONFIG_FB_CIRRUS=y
diff --git a/arch/mips/mti-malta/malta-reset.c b/arch/mips/mti-malta/malta-reset.c
index 2fd2cc2..04d6b9c 100644
--- a/arch/mips/mti-malta/malta-reset.c
+++ b/arch/mips/mti-malta/malta-reset.c
@@ -8,21 +8,11 @@
*/
#include <linux/io.h>
#include <linux/pm.h>
+#include <linux/reboot.h>
#include <asm/reboot.h>
#include <asm/mach-malta/malta-pm.h>
-#define SOFTRES_REG 0x1f000500
-#define GORESET 0x42
-
-static void mips_machine_restart(char *command)
-{
- unsigned int __iomem *softres_reg =
- ioremap(SOFTRES_REG, sizeof(unsigned int));
-
- __raw_writel(GORESET, softres_reg);
-}
-
static void mips_machine_halt(void)
{
while (true);
@@ -33,12 +23,11 @@
mips_pm_suspend(PIIX4_FUNC3IO_PMCNTRL_SUS_TYP_SOFF);
pr_info("Failed to power down, resetting\n");
- mips_machine_restart(NULL);
+ machine_restart(NULL);
}
static int __init mips_reboot_setup(void)
{
- _machine_restart = mips_machine_restart;
_machine_halt = mips_machine_halt;
pm_power_off = mips_machine_power_off;
