[Blackfin] arch: hook up set_irq_wake in Blackfin's irq code

 - Add support for irq_wake on system and gpio interrupts
 - Remove outdated kernel options
 - Add option to select default PM mode
 - Fix various places where SIC_IWRx was only handled partially

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

1 files changed, 29 insertions, 20 deletions

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index ba21e33b8b1f..368bc7fe167e 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -544,7 +544,7 @@ config EXCPT_IRQ_SYSC_L1
         default y
         help
           If enabled, the entire ASM lowlevel exception and interrupt entry code
-          (STORE/RESTORE CONTEXT) is linked into L1 instruction memory. 
+          (STORE/RESTORE CONTEXT) is linked into L1 instruction memory.
           (less latency)
 
 config DO_IRQ_L1
@@ -904,29 +904,38 @@ config ARCH_SUSPEND_POSSIBLE
         depends on !SMP
 
 choice
-        prompt "Select PM Wakeup Event Source"
-        default PM_WAKEUP_GPIO_BY_SIC_IWR
+        prompt "Default Power Saving Mode"
         depends on PM
-        help
-          If you have a GPIO already configured as input with the corresponding PORTx_MASK
-          bit set - "Specify Wakeup Event by SIC_IWR value"
+        default PM_BFIN_SLEEP_DEEPER
+config  PM_BFIN_SLEEP_DEEPER
+        bool "Sleep Deeper"
+        help
+          Sleep "Deeper" Mode (High Power Savings) - This mode reduces dynamic
+          power dissipation by disabling the clock to the processor core (CCLK).
+          Furthermore, Standby sets the internal power supply voltage (VDDINT)
+          to 0.85 V to provide the greatest power savings, while preserving the
+          processor state.
+          The PLL and system clock (SCLK) continue to operate at a very low
+          frequency of about 3.3 MHz. To preserve data integrity in the SDRAM,
+          the SDRAM is put into Self Refresh Mode. Typically an external event
+          such as GPIO interrupt or RTC activity wakes up the processor.
+          Various Peripherals such as UART, SPORT, PPI may not function as
+          normal during Sleep Deeper, due to the reduced SCLK frequency.
+          When in the sleep mode, system DMA access to L1 memory is not supported.
+
+config  PM_BFIN_SLEEP
+        bool "Sleep"
+        help
+          Sleep Mode (High Power Savings) - The sleep mode reduces power
+          dissipation by disabling the clock to the processor core (CCLK).
+          The PLL and system clock (SCLK), however, continue to operate in
+          this mode. Typically an external event or RTC activity will wake
+          up the processor. When in the sleep mode,
+          system DMA access to L1 memory is not supported.
+endchoice
 
-config PM_WAKEUP_GPIO_BY_SIC_IWR
-        bool "Specify Wakeup Event by SIC_IWR value"
 config PM_WAKEUP_BY_GPIO
         bool "Cause Wakeup Event by GPIO"
-config PM_WAKEUP_GPIO_API
-        bool "Configure Wakeup Event by PM GPIO API"
-
-endchoice
-
-config PM_WAKEUP_SIC_IWR
-        hex "Wakeup Events (SIC_IWR)"
-        depends on PM_WAKEUP_GPIO_BY_SIC_IWR
-        default 0x8 if (BF537 || BF536 || BF534)
-        default 0x80 if (BF533 || BF532 || BF531)
-        default 0x80 if (BF54x)
-        default 0x80 if (BF52x)
 
 config PM_WAKEUP_GPIO_NUMBER
         int "Wakeup GPIO number"