[ARM] pxa: Add PXA3 standby code hooked into the IRQ wake scheme

Wakeup sources on PXA3 are enabled at two levels.  First, the MFP
configuration has to be set to enable which edges a specific pin
will trigger a wakeup.  The pin also has to be routed to a functional
unit.  Lastly, the functional unit must be enabled as a wakeup source
in the appropriate AD*ER registers (AD2D0ER for standby resume.)

This doesn't fit well with the IRQ wake scheme - we currently do a
best effort conversion from IRQ numbers to functional unit wake enable
bits.  For instance, there's several USB client related enable bits but
there's no corresponding IRQs to determine which you'd want.  Conversely,
there's a single enable bit covering several functional units.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 86 insertions, 0 deletions

diff --git a/include/asm-arm/arch-pxa/pxa3xx-regs.h b/include/asm-arm/arch-pxa/pxa3xx-regs.h
index 3900a0ca0bc0..66d54119757c 100644
--- a/include/asm-arm/arch-pxa/pxa3xx-regs.h
+++ b/include/asm-arm/arch-pxa/pxa3xx-regs.h
@@ -14,6 +14,92 @@
 #define __ASM_ARCH_PXA3XX_REGS_H
 
 /*
+ * Slave Power Managment Unit
+ */
+#define ASCR            __REG(0x40f40000)       /* Application Subsystem Power Status/Configuration */
+#define ARSR            __REG(0x40f40004)       /* Application Subsystem Reset Status */
+#define AD3ER           __REG(0x40f40008)       /* Application Subsystem Wake-Up from D3 Enable */
+#define AD3SR           __REG(0x40f4000c)       /* Application Subsystem Wake-Up from D3 Status */
+#define AD2D0ER         __REG(0x40f40010)       /* Application Subsystem Wake-Up from D2 to D0 Enable */
+#define AD2D0SR         __REG(0x40f40014)       /* Application Subsystem Wake-Up from D2 to D0 Status */
+#define AD2D1ER         __REG(0x40f40018)       /* Application Subsystem Wake-Up from D2 to D1 Enable */
+#define AD2D1SR         __REG(0x40f4001c)       /* Application Subsystem Wake-Up from D2 to D1 Status */
+#define AD1D0ER         __REG(0x40f40020)       /* Application Subsystem Wake-Up from D1 to D0 Enable */
+#define AD1D0SR         __REG(0x40f40024)       /* Application Subsystem Wake-Up from D1 to D0 Status */
+#define AGENP           __REG(0x40f4002c)       /* Application Subsystem General Purpose */
+#define AD3R            __REG(0x40f40030)       /* Application Subsystem D3 Configuration */
+#define AD2R            __REG(0x40f40034)       /* Application Subsystem D2 Configuration */
+#define AD1R            __REG(0x40f40038)       /* Application Subsystem D1 Configuration */
+
+/*
+ * Application Subsystem Configuration bits.
+ */
+#define ASCR_RDH                (1 << 31)
+#define ASCR_D1S                (1 << 2)
+#define ASCR_D2S                (1 << 1)
+#define ASCR_D3S                (1 << 0)
+
+/*
+ * Application Reset Status bits.
+ */
+#define ARSR_GPR                (1 << 3)
+#define ARSR_LPMR               (1 << 2)
+#define ARSR_WDT                (1 << 1)
+#define ARSR_HWR                (1 << 0)
+
+/*
+ * Application Subsystem Wake-Up bits.
+ */
+#define ADXER_WRTC              (1 << 31)       /* RTC */
+#define ADXER_WOST              (1 << 30)       /* OS Timer */
+#define ADXER_WTSI              (1 << 29)       /* Touchscreen */
+#define ADXER_WUSBH             (1 << 28)       /* USB host */
+#define ADXER_WUSB2             (1 << 26)       /* USB client 2.0 */
+#define ADXER_WMSL0             (1 << 24)       /* MSL port 0*/
+#define ADXER_WDMUX3            (1 << 23)       /* USB EDMUX3 */
+#define ADXER_WDMUX2            (1 << 22)       /* USB EDMUX2 */
+#define ADXER_WKP               (1 << 21)       /* Keypad */
+#define ADXER_WUSIM1            (1 << 20)       /* USIM Port 1 */
+#define ADXER_WUSIM0            (1 << 19)       /* USIM Port 0 */
+#define ADXER_WOTG              (1 << 16)       /* USBOTG input */
+#define ADXER_MFP_WFLASH        (1 << 15)       /* MFP: Data flash busy */
+#define ADXER_MFP_GEN12         (1 << 14)       /* MFP: MMC3/GPIO/OST inputs */
+#define ADXER_MFP_WMMC2         (1 << 13)       /* MFP: MMC2 */
+#define ADXER_MFP_WMMC1         (1 << 12)       /* MFP: MMC1 */
+#define ADXER_MFP_WI2C          (1 << 11)       /* MFP: I2C */
+#define ADXER_MFP_WSSP4         (1 << 10)       /* MFP: SSP4 */
+#define ADXER_MFP_WSSP3         (1 << 9)        /* MFP: SSP3 */
+#define ADXER_MFP_WMAXTRIX      (1 << 8)        /* MFP: matrix keypad */
+#define ADXER_MFP_WUART3        (1 << 7)        /* MFP: UART3 */
+#define ADXER_MFP_WUART2        (1 << 6)        /* MFP: UART2 */
+#define ADXER_MFP_WUART1        (1 << 5)        /* MFP: UART1 */
+#define ADXER_MFP_WSSP2         (1 << 4)        /* MFP: SSP2 */
+#define ADXER_MFP_WSSP1         (1 << 3)        /* MFP: SSP1 */
+#define ADXER_MFP_WAC97         (1 << 2)        /* MFP: AC97 */
+#define ADXER_WEXTWAKE1         (1 << 1)        /* External Wake 1 */
+#define ADXER_WEXTWAKE0         (1 << 0)        /* External Wake 0 */
+
+/*
+ * AD3R/AD2R/AD1R bits.  R2-R5 are only defined for PXA320.
+ */
+#define ADXR_L2                 (1 << 8)
+#define ADXR_R5                 (1 << 5)
+#define ADXR_R4                 (1 << 4)
+#define ADXR_R3                 (1 << 3)
+#define ADXR_R2                 (1 << 2)
+#define ADXR_R1                 (1 << 1)
+#define ADXR_R0                 (1 << 0)
+
+/*
+ * Values for PWRMODE CP15 register
+ */
+#define PXA3xx_PM_S3D4C4        0x07    /* aka deep sleep */
+#define PXA3xx_PM_S2D3C4        0x06    /* aka sleep */
+#define PXA3xx_PM_S0D2C2        0x03    /* aka standby */
+#define PXA3xx_PM_S0D1C2        0x02    /* aka LCD refresh */
+#define PXA3xx_PM_S0D0C1        0x01
+
+/*
  * Application Subsystem Clock
  */
 #define ACCR            __REG(0x41340000)       /* Application Subsystem Clock Configuration Register */