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-rw-r--r--target/linux/kirkwood/patches/004-cpuidle.patch146
1 files changed, 0 insertions, 146 deletions
diff --git a/target/linux/kirkwood/patches/004-cpuidle.patch b/target/linux/kirkwood/patches/004-cpuidle.patch
deleted file mode 100644
index 876fe89f57..0000000000
--- a/target/linux/kirkwood/patches/004-cpuidle.patch
+++ /dev/null
@@ -1,146 +0,0 @@
-From: Rabeeh Khoury <rabeeh@marvell.com>
-Date: Tue, 24 Mar 2009 14:10:15 +0000 (+0200)
-Subject: [ARM] Kirkwood: CPU idle driver
-X-Git-Url: http://git.marvell.com/?p=orion.git;a=commitdiff_plain;h=039b97666e1335eac517c7d35a0fa1143af689f0;hp=56a50adda49b2020156616c4eb15353e0f9ad7de
-
-[ARM] Kirkwood: CPU idle driver
-
-The patch adds support for Kirkwood cpu idle.
-Two idle states are defined:
-1. Wait-for-interrupt (replacing default kirkwood wfi)
-2. Wait-for-interrupt and DDR self refresh
-
-Signed-off-by: Rabeeh Khoury <rabeeh@marvell.com>
-Signed-off-by: Nicolas Pitre <nico@marvell.com>
----
-
---- a/arch/arm/configs/kirkwood_defconfig
-+++ b/arch/arm/configs/kirkwood_defconfig
-@@ -270,7 +270,9 @@ CONFIG_CMDLINE=""
- #
- # CPU Power Management
- #
--# CONFIG_CPU_IDLE is not set
-+CONFIG_CPU_IDLE=y
-+CONFIG_CPU_IDLE_GOV_LADDER=y
-+CONFIG_CPU_IDLE_GOV_MENU=y
-
- #
- # Floating point emulation
---- a/arch/arm/mach-kirkwood/Makefile
-+++ b/arch/arm/mach-kirkwood/Makefile
-@@ -5,3 +5,5 @@ obj-$(CONFIG_MACH_RD88F6192_NAS) += rd88
- obj-$(CONFIG_MACH_RD88F6281) += rd88f6281-setup.o
- obj-$(CONFIG_MACH_SHEEVAPLUG) += sheevaplug-setup.o
- obj-$(CONFIG_MACH_TS219) += ts219-setup.o
-+
-+obj-$(CONFIG_CPU_IDLE) += cpuidle.o
---- /dev/null
-+++ b/arch/arm/mach-kirkwood/cpuidle.c
-@@ -0,0 +1,96 @@
-+/*
-+ * arch/arm/mach-kirkwood/cpuidle.c
-+ *
-+ * CPU idle Marvell Kirkwood SoCs
-+ *
-+ * 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.
-+ *
-+ * The cpu idle uses wait-for-interrupt and DDR self refresh in order
-+ * to implement two idle states -
-+ * #1 wait-for-interrupt
-+ * #2 wait-for-interrupt and DDR self refresh
-+ */
-+
-+#include <linux/kernel.h>
-+#include <linux/init.h>
-+#include <linux/platform_device.h>
-+#include <linux/cpuidle.h>
-+#include <asm/io.h>
-+#include <asm/proc-fns.h>
-+#include <mach/kirkwood.h>
-+
-+#define KIRKWOOD_MAX_STATES 2
-+
-+static struct cpuidle_driver kirkwood_idle_driver = {
-+ .name = "kirkwood_idle",
-+ .owner = THIS_MODULE,
-+};
-+
-+static DEFINE_PER_CPU(struct cpuidle_device, kirkwood_cpuidle_device);
-+
-+/* Actual code that puts the SoC in different idle states */
-+static int kirkwood_enter_idle(struct cpuidle_device *dev,
-+ struct cpuidle_state *state)
-+{
-+ struct timeval before, after;
-+ int idle_time;
-+
-+ local_irq_disable();
-+ do_gettimeofday(&before);
-+ if (state == &dev->states[0])
-+ /* Wait for interrupt state */
-+ cpu_do_idle();
-+ else if (state == &dev->states[1]) {
-+ /*
-+ * Following write will put DDR in self refresh.
-+ * Note that we have 256 cycles before DDR puts it
-+ * self in self-refresh, so the wait-for-interrupt
-+ * call afterwards won't get the DDR from self refresh
-+ * mode.
-+ */
-+ writel(0x7, DDR_OPERATION_BASE);
-+ cpu_do_idle();
-+ }
-+ do_gettimeofday(&after);
-+ local_irq_enable();
-+ idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
-+ (after.tv_usec - before.tv_usec);
-+ return idle_time;
-+}
-+
-+/* Initialize CPU idle by registering the idle states */
-+static int kirkwood_init_cpuidle(void)
-+{
-+ struct cpuidle_device *device;
-+
-+ cpuidle_register_driver(&kirkwood_idle_driver);
-+
-+ device = &per_cpu(kirkwood_cpuidle_device, smp_processor_id());
-+ device->state_count = KIRKWOOD_MAX_STATES;
-+
-+ /* Wait for interrupt state */
-+ device->states[0].enter = kirkwood_enter_idle;
-+ device->states[0].exit_latency = 1;
-+ device->states[0].target_residency = 10000;
-+ device->states[0].flags = CPUIDLE_FLAG_TIME_VALID;
-+ strcpy(device->states[0].name, "WFI");
-+ strcpy(device->states[0].desc, "Wait for interrupt");
-+
-+ /* Wait for interrupt and DDR self refresh state */
-+ device->states[1].enter = kirkwood_enter_idle;
-+ device->states[1].exit_latency = 10;
-+ device->states[1].target_residency = 10000;
-+ device->states[1].flags = CPUIDLE_FLAG_TIME_VALID;
-+ strcpy(device->states[1].name, "DDR SR");
-+ strcpy(device->states[1].desc, "WFI and DDR Self Refresh");
-+
-+ if (cpuidle_register_device(device)) {
-+ printk(KERN_ERR "kirkwood_init_cpuidle: Failed registering\n");
-+ return -EIO;
-+ }
-+ return 0;
-+}
-+
-+device_initcall(kirkwood_init_cpuidle);
---- a/arch/arm/mach-kirkwood/include/mach/kirkwood.h
-+++ b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
-@@ -48,6 +48,7 @@
- */
- #define DDR_VIRT_BASE (KIRKWOOD_REGS_VIRT_BASE | 0x00000)
- #define DDR_WINDOW_CPU_BASE (DDR_VIRT_BASE | 0x1500)
-+#define DDR_OPERATION_BASE (DDR_VIRT_BASE | 0x1418)
-
- #define DEV_BUS_PHYS_BASE (KIRKWOOD_REGS_PHYS_BASE | 0x10000)
- #define DEV_BUS_VIRT_BASE (KIRKWOOD_REGS_VIRT_BASE | 0x10000)