On 30/06/15 16:15, Andrew Andrianov wrote:
Signed-off-by: Andrew Andrianov <and...@ncrmnt.org>
---
drivers/cpuidle/Kconfig.arm | 6 +++++
drivers/cpuidle/Makefile | 1 +
drivers/cpuidle/cpuidle-rcm-k1879xb1.c | 48 ++++++++++++++++++++++++++++++++++
3 files changed, 55 insertions(+)
create mode 100644 drivers/cpuidle/cpuidle-rcm-k1879xb1.c
diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
index 21340e0..988bfa3 100644
--- a/drivers/cpuidle/Kconfig.arm
+++ b/drivers/cpuidle/Kconfig.arm
@@ -74,3 +74,9 @@ config ARM_MVEBU_V7_CPUIDLE
depends on ARCH_MVEBU && !ARM64
help
Select this to enable cpuidle on Armada 370, 38x and XP processors.
+
+config ARM_RCM_K1879XB1_CPUIDLE
+ bool "CPU Idle Driver for RC Module's K1879XB1YA SoC"
+ depends on ARCH_RCM_K1879XB1 && !ARM64
+ help
+ Select this to enable cpuidle on K1879XB1YA SoC.
diff --git a/drivers/cpuidle/Makefile b/drivers/cpuidle/Makefile
index 3ba81b1..71b7e16 100644
--- a/drivers/cpuidle/Makefile
+++ b/drivers/cpuidle/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_ARM_ZYNQ_CPUIDLE) +=
cpuidle-zynq.o
obj-$(CONFIG_ARM_U8500_CPUIDLE) += cpuidle-ux500.o
obj-$(CONFIG_ARM_AT91_CPUIDLE) += cpuidle-at91.o
obj-$(CONFIG_ARM_EXYNOS_CPUIDLE) += cpuidle-exynos.o
+obj-$(CONFIG_ARM_RCM_K1879XB1_CPUIDLE) += cpuidle-rcm-k1879xb1.o
obj-$(CONFIG_ARM_CPUIDLE) += cpuidle-arm.o
###############################################################################
diff --git a/drivers/cpuidle/cpuidle-rcm-k1879xb1.c
b/drivers/cpuidle/cpuidle-rcm-k1879xb1.c
new file mode 100644
index 0000000..7c621b6
--- /dev/null
+++ b/drivers/cpuidle/cpuidle-rcm-k1879xb1.c
@@ -0,0 +1,48 @@
+/*
+ * CPU idle for RC Module K1879XB1YA SoC
+ *
+ * Copyright (C) 2015 RC Module.
+ * http://www.module.ru/
+ *
+ * Andrew Andrianov <and...@ncrmnt.org>
+ *
+ * Based on Davinci CPU idle code
+ * (arch/arm/mach-davinci/cpuidle.c)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/cpuidle.h>
+#include <asm/cpuidle.h>
+
+/*
+ * We only enable WFI here, since DDR will enter self-refresh
+ * on it's own when it can (bootloader takes care to configure that)
+ */
+
+static struct cpuidle_driver rcm_idle_driver = {
+ .name = "rcm_k1879xb1_idle",
+ .states[0] = ARM_CPUIDLE_WFI_STATE,
Do you plan to add more states in future ?
Otherwise default_idle_call will be sufficient to enter WFI
and you need not register any cpuidle driver.
Regards,
Sudeep
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