ARM: kirkwood: ioremap memory control register (d364eecf) · Commits · 戴 / test

arch/arm/mach-kirkwood/include/mach/bridge-regs.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -80,5 +80,6 @@
		#define CGC_RESERVED (0x6 << 21)

		#define MEMORY_PM_CTRL (BRIDGE_VIRT_BASE + 0x118)
		#define MEMORY_PM_CTRL_PHYS (BRIDGE_PHYS_BASE + 0x118)

		#endif

+6 −3

Original line number	Diff line number	Diff line
		@@ -21,15 +21,16 @@
		#include "common.h"

		static void __iomem *ddr_operation_base;
		static void __iomem *memory_pm_ctrl;

		static void kirkwood_low_power(void)
		{
		u32 mem_pm_ctrl;

		mem_pm_ctrl = readl(MEMORY_PM_CTRL);
		mem_pm_ctrl = readl(memory_pm_ctrl);

		/* Set peripherals to low-power mode */
		writel_relaxed(~0, MEMORY_PM_CTRL);
		writel_relaxed(~0, memory_pm_ctrl);

		/* Set DDR in self-refresh */
		writel_relaxed(0x7, ddr_operation_base);
		@@ -41,7 +42,7 @@ static void kirkwood_low_power(void)
		*/
		cpu_do_idle();

		writel_relaxed(mem_pm_ctrl, MEMORY_PM_CTRL);
		writel_relaxed(mem_pm_ctrl, memory_pm_ctrl);
		}

		static int kirkwood_suspend_enter(suspend_state_t state)
		@@ -69,5 +70,7 @@ static const struct platform_suspend_ops kirkwood_suspend_ops = {
		void __init kirkwood_pm_init(void)
		{
		ddr_operation_base = ioremap(DDR_OPERATION_BASE, 4);
		memory_pm_ctrl = ioremap(MEMORY_PM_CTRL_PHYS, 4);

		suspend_set_ops(&kirkwood_suspend_ops);
		}