Files
rockchip-kernel/include/dt-bindings/pinctrl/omap.h
Tony Lindgren 31f0820a67 ARM: dts: Fix omap serial wake-up when booted with device tree
We've had deeper idle states working on omaps for few years now,
but only in the legacy mode. When booted with device tree, the
wake-up events did not have a chance to work until commit
3e6cee1786 (pinctrl: single: Add support for wake-up interrupts)
that recently got merged. In addition to that we also needed commit
79d9701559 (of/irq: create interrupts-extended property) and
9ec36cafe4 (of/irq: do irq resolution in platform_get_irq) that
are now also merged.

So let's fix the wake-up events for some selected omaps so devices
booted in device tree mode won't just hang if deeper power states
are enabled, and so systems can wake up from suspend to the serial
port event.

Note that there's no longer need to specify the wake-up bit in
the pinctrl settings, the request_irq on the wake-up pin takes
care of that.

Cc: devicetree@vger.kernel.org
Cc: "Benoît Cousson" <bcousson@baylibre.com>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Nishanth Menon <nm@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <t-kristo@ti.com>
[tony@atomide.com: updated comments, added board LDP]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 13:48:35 -07:00

86 lines
2.9 KiB
C

/*
* This header provides constants for OMAP pinctrl bindings.
*
* Copyright (C) 2009 Nokia
* Copyright (C) 2009-2010 Texas Instruments
*/
#ifndef _DT_BINDINGS_PINCTRL_OMAP_H
#define _DT_BINDINGS_PINCTRL_OMAP_H
/* 34xx mux mode options for each pin. See TRM for options */
#define MUX_MODE0 0
#define MUX_MODE1 1
#define MUX_MODE2 2
#define MUX_MODE3 3
#define MUX_MODE4 4
#define MUX_MODE5 5
#define MUX_MODE6 6
#define MUX_MODE7 7
/* 24xx/34xx mux bit defines */
#define PULL_ENA (1 << 3)
#define PULL_UP (1 << 4)
#define ALTELECTRICALSEL (1 << 5)
/* omap3/4/5 specific mux bit defines */
#define INPUT_EN (1 << 8)
#define OFF_EN (1 << 9)
#define OFFOUT_EN (1 << 10)
#define OFFOUT_VAL (1 << 11)
#define OFF_PULL_EN (1 << 12)
#define OFF_PULL_UP (1 << 13)
#define WAKEUP_EN (1 << 14)
#define WAKEUP_EVENT (1 << 15)
/* Active pin states */
#define PIN_OUTPUT 0
#define PIN_OUTPUT_PULLUP (PIN_OUTPUT | PULL_ENA | PULL_UP)
#define PIN_OUTPUT_PULLDOWN (PIN_OUTPUT | PULL_ENA)
#define PIN_INPUT INPUT_EN
#define PIN_INPUT_PULLUP (PULL_ENA | INPUT_EN | PULL_UP)
#define PIN_INPUT_PULLDOWN (PULL_ENA | INPUT_EN)
/* Off mode states */
#define PIN_OFF_NONE 0
#define PIN_OFF_OUTPUT_HIGH (OFF_EN | OFFOUT_EN | OFFOUT_VAL)
#define PIN_OFF_OUTPUT_LOW (OFF_EN | OFFOUT_EN)
#define PIN_OFF_INPUT_PULLUP (OFF_EN | OFF_PULL_EN | OFF_PULL_UP)
#define PIN_OFF_INPUT_PULLDOWN (OFF_EN | OFF_PULL_EN)
#define PIN_OFF_WAKEUPENABLE WAKEUP_EN
/*
* Macros to allow using the absolute physical address instead of the
* padconf registers instead of the offset from padconf base.
*/
#define OMAP_IOPAD_OFFSET(pa, offset) (((pa) & 0xffff) - (offset))
#define OMAP2420_CORE_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x0030) (val)
#define OMAP2430_CORE_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x2030) (val)
#define OMAP3_CORE1_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x2030) (val)
#define OMAP3430_CORE2_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x25d8) (val)
#define OMAP3630_CORE2_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x25a0) (val)
#define OMAP3_WKUP_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x2a00) (val)
#define AM33XX_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
#define OMAP4_CORE_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x0040) (val)
#define OMAP4_WKUP_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0xe040) (val)
#define AM4372_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
#define OMAP5_CORE_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x2840) (val)
#define OMAP5_WKUP_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0xc840) (val)
#define DRA7XX_CORE_IOPAD(pa, val) OMAP_IOPAD_OFFSET((pa), 0x3400) (val)
/*
* Define some commonly used pins configured by the boards.
* Note that some boards use alternative pins, so check
* the schematics before using these.
*/
#define OMAP3_UART1_RX 0x152
#define OMAP3_UART2_RX 0x14a
#define OMAP3_UART3_RX 0x16e
#define OMAP4_UART2_RX 0xdc
#define OMAP4_UART3_RX 0x104
#define OMAP4_UART4_RX 0x11c
#endif