Lines Matching +full:system +full:- +full:bus

2  * arch/arm/mach-lpc32xx/pm.c
14  * LPC32XX CPU and system power management
16  * The LPC32XX has three CPU modes for controlling system power: run,
17  * direct-run, and halt modes. When switching between halt and run modes,
18  * the CPU transistions through direct-run mode. For Linux, direct-run
20  * system is fully suspended.
23  * The ARM CPU clock (HCLK_PLL), HCLK bus clock, and PCLK bus clocks are
24  * derived from the HCLK PLL. The HCLK and PCLK bus rates are divided from
27  * Direct-run mode:
28  * The ARM CPU clock, HCLK bus clock, and PCLK bus clocks are driven from
34  * SYSCLK is gated off and the CPU and system clocks are halted.
37  * system event (ie, GPIO state change, RTC match, key press, etc.) will
38  * wake the system up back into direct-run mode.
42  * DRAM or regular SDRAM devices. If SDRAM is used in the system, the
43  * SDRAM will still be accessible in direct-run mode. In DDR based systems,
44  * a transition to direct-run mode will stop all DDR accesses (no clocks).
46  * and exit DRAM self-refresh modes must not be executed in DRAM. A small
53  *  Places DRAMs in self-refresh mode
54  *  Enter direct-run mode
57  *  Enter halt mode - CPU and buses will stop
58  *  System enters direct-run mode when an enabled event occurs
91 		return -ENOMEM;  in lpc32xx_pm_enter()
94 	 * Copy code to suspend system into IRAM. The suspend code  in lpc32xx_pm_enter()
128 	 * Setup SDRAM self-refresh clock to automatically disable o  in lpc32xx_pm_init()
129 	 * start of self-refresh. This only needs to be done once.  in lpc32xx_pm_init()