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-rw-r--r--arch/arm/mach-u300/include/mach/gpio.h290
1 files changed, 290 insertions, 0 deletions
diff --git a/arch/arm/mach-u300/include/mach/gpio.h b/arch/arm/mach-u300/include/mach/gpio.h
new file mode 100644
index 000000000000..c8174128d7eb
--- /dev/null
+++ b/arch/arm/mach-u300/include/mach/gpio.h
@@ -0,0 +1,290 @@
+/*
+ *
+ * arch/arm/mach-u300/include/mach/gpio.h
+ *
+ *
+ * Copyright (C) 2007-2009 ST-Ericsson AB
+ * License terms: GNU General Public License (GPL) version 2
+ * GPIO block resgister definitions and inline macros for
+ * U300 GPIO COH 901 335 or COH 901 571/3
+ * Author: Linus Walleij <linus.walleij@stericsson.com>
+ */
+
+#ifndef __MACH_U300_GPIO_H
+#define __MACH_U300_GPIO_H
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <mach/hardware.h>
+#include <asm/irq.h>
+
+/* Switch type depending on platform/chip variant */
+#if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330)
+#define U300_COH901335
+#endif
+#if defined(CONFIG_MACH_U300_BS365) || defined(CONFIG_MACH_U300_BS335)
+#define U300_COH901571_3
+#endif
+
+/* Get base address for regs here */
+#include "u300-regs.h"
+/* IRQ numbers */
+#include "irqs.h"
+
+/*
+ * This is the GPIO block definitions. GPIO (General Purpose I/O) can be
+ * used for anything, and often is. The event/enable etc figures are for
+ * the lowermost pin (pin 0 on each port), shift this left to match your
+ * pin if you're gonna use these values.
+ */
+#ifdef U300_COH901335
+#define U300_GPIO_PORTX_SPACING (0x1C)
+/* Port X Pin Data Register 32bit, this is both input and output (R/W) */
+#define U300_GPIO_PXPDIR (0x00)
+#define U300_GPIO_PXPDOR (0x00)
+/* Port X Pin Config Register 32bit (R/W) */
+#define U300_GPIO_PXPCR (0x04)
+#define U300_GPIO_PXPCR_ALL_PINS_MODE_MASK (0x0000FFFFUL)
+#define U300_GPIO_PXPCR_PIN_MODE_MASK (0x00000003UL)
+#define U300_GPIO_PXPCR_PIN_MODE_SHIFT (0x00000002UL)
+#define U300_GPIO_PXPCR_PIN_MODE_INPUT (0x00000000UL)
+#define U300_GPIO_PXPCR_PIN_MODE_OUTPUT_PUSH_PULL (0x00000001UL)
+#define U300_GPIO_PXPCR_PIN_MODE_OUTPUT_OPEN_DRAIN (0x00000002UL)
+#define U300_GPIO_PXPCR_PIN_MODE_OUTPUT_OPEN_SOURCE (0x00000003UL)
+/* Port X Interrupt Event Register 32bit (R/W) */
+#define U300_GPIO_PXIEV (0x08)
+#define U300_GPIO_PXIEV_ALL_IRQ_EVENT_MASK (0x000000FFUL)
+#define U300_GPIO_PXIEV_IRQ_EVENT (0x00000001UL)
+/* Port X Interrupt Enable Register 32bit (R/W) */
+#define U300_GPIO_PXIEN (0x0C)
+#define U300_GPIO_PXIEN_ALL_IRQ_ENABLE_MASK (0x000000FFUL)
+#define U300_GPIO_PXIEN_IRQ_ENABLE (0x00000001UL)
+/* Port X Interrupt Force Register 32bit (R/W) */
+#define U300_GPIO_PXIFR (0x10)
+#define U300_GPIO_PXIFR_ALL_IRQ_FORCE_MASK (0x000000FFUL)
+#define U300_GPIO_PXIFR_IRQ_FORCE (0x00000001UL)
+/* Port X Interrupt Config Register 32bit (R/W) */
+#define U300_GPIO_PXICR (0x14)
+#define U300_GPIO_PXICR_ALL_IRQ_CONFIG_MASK (0x000000FFUL)
+#define U300_GPIO_PXICR_IRQ_CONFIG_MASK (0x00000001UL)
+#define U300_GPIO_PXICR_IRQ_CONFIG_FALLING_EDGE (0x00000000UL)
+#define U300_GPIO_PXICR_IRQ_CONFIG_RISING_EDGE (0x00000001UL)
+/* Port X Pull-up Enable Register 32bit (R/W) */
+#define U300_GPIO_PXPER (0x18)
+#define U300_GPIO_PXPER_ALL_PULL_UP_DISABLE_MASK (0x000000FFUL)
+#define U300_GPIO_PXPER_PULL_UP_DISABLE (0x00000001UL)
+/* Control Register 32bit (R/W) */
+#define U300_GPIO_CR (0x54)
+#define U300_GPIO_CR_BLOCK_CLOCK_ENABLE (0x00000001UL)
+/* three ports of 8 bits each = GPIO pins 0..23 */
+#define U300_GPIO_NUM_PORTS 3
+#define U300_GPIO_PINS_PER_PORT 8
+#define U300_GPIO_MAX (U300_GPIO_PINS_PER_PORT * U300_GPIO_NUM_PORTS - 1)
+#endif
+
+#ifdef U300_COH901571_3
+/*
+ * Control Register 32bit (R/W)
+ * bit 15-9 (mask 0x0000FE00) contains the number of cores. 8*cores
+ * gives the number of GPIO pins.
+ * bit 8-2 (mask 0x000001FC) contains the core version ID.
+ */
+#define U300_GPIO_CR (0x00)
+#define U300_GPIO_CR_SYNC_SEL_ENABLE (0x00000002UL)
+#define U300_GPIO_CR_BLOCK_CLKRQ_ENABLE (0x00000001UL)
+#define U300_GPIO_PORTX_SPACING (0x30)
+/* Port X Pin Data INPUT Register 32bit (R/W) */
+#define U300_GPIO_PXPDIR (0x04)
+/* Port X Pin Data OUTPUT Register 32bit (R/W) */
+#define U300_GPIO_PXPDOR (0x08)
+/* Port X Pin Config Register 32bit (R/W) */
+#define U300_GPIO_PXPCR (0x0C)
+#define U300_GPIO_PXPCR_ALL_PINS_MODE_MASK (0x0000FFFFUL)
+#define U300_GPIO_PXPCR_PIN_MODE_MASK (0x00000003UL)
+#define U300_GPIO_PXPCR_PIN_MODE_SHIFT (0x00000002UL)
+#define U300_GPIO_PXPCR_PIN_MODE_INPUT (0x00000000UL)
+#define U300_GPIO_PXPCR_PIN_MODE_OUTPUT_PUSH_PULL (0x00000001UL)
+#define U300_GPIO_PXPCR_PIN_MODE_OUTPUT_OPEN_DRAIN (0x00000002UL)
+#define U300_GPIO_PXPCR_PIN_MODE_OUTPUT_OPEN_SOURCE (0x00000003UL)
+/* Port X Pull-up Enable Register 32bit (R/W) */
+#define U300_GPIO_PXPER (0x10)
+#define U300_GPIO_PXPER_ALL_PULL_UP_DISABLE_MASK (0x000000FFUL)
+#define U300_GPIO_PXPER_PULL_UP_DISABLE (0x00000001UL)
+/* Port X Interrupt Event Register 32bit (R/W) */
+#define U300_GPIO_PXIEV (0x14)
+#define U300_GPIO_PXIEV_ALL_IRQ_EVENT_MASK (0x000000FFUL)
+#define U300_GPIO_PXIEV_IRQ_EVENT (0x00000001UL)
+/* Port X Interrupt Enable Register 32bit (R/W) */
+#define U300_GPIO_PXIEN (0x18)
+#define U300_GPIO_PXIEN_ALL_IRQ_ENABLE_MASK (0x000000FFUL)
+#define U300_GPIO_PXIEN_IRQ_ENABLE (0x00000001UL)
+/* Port X Interrupt Force Register 32bit (R/W) */
+#define U300_GPIO_PXIFR (0x1C)
+#define U300_GPIO_PXIFR_ALL_IRQ_FORCE_MASK (0x000000FFUL)
+#define U300_GPIO_PXIFR_IRQ_FORCE (0x00000001UL)
+/* Port X Interrupt Config Register 32bit (R/W) */
+#define U300_GPIO_PXICR (0x20)
+#define U300_GPIO_PXICR_ALL_IRQ_CONFIG_MASK (0x000000FFUL)
+#define U300_GPIO_PXICR_IRQ_CONFIG_MASK (0x00000001UL)
+#define U300_GPIO_PXICR_IRQ_CONFIG_FALLING_EDGE (0x00000000UL)
+#define U300_GPIO_PXICR_IRQ_CONFIG_RISING_EDGE (0x00000001UL)
+#ifdef CONFIG_MACH_U300_BS335
+/* seven ports of 8 bits each = GPIO pins 0..55 */
+#define U300_GPIO_NUM_PORTS 7
+#else
+/* five ports of 8 bits each = GPIO pins 0..39 */
+#define U300_GPIO_NUM_PORTS 5
+#endif
+#define U300_GPIO_PINS_PER_PORT 8
+#define U300_GPIO_MAX (U300_GPIO_PINS_PER_PORT * U300_GPIO_NUM_PORTS - 1)
+#endif
+
+/*
+ * Individual pin assignments for the B26/S26. Notice that the
+ * actual usage of these pins depends on the PAD MUX settings, that
+ * is why the same number can potentially appear several times.
+ * In the reference design each pin is only used for one purpose.
+ * These were determined by inspecting the B26/S26 schematic:
+ * 2/1911-ROA 128 1603
+ */
+#ifdef CONFIG_MACH_U300_BS2X
+#define U300_GPIO_PIN_UART_RX 0
+#define U300_GPIO_PIN_UART_TX 1
+#define U300_GPIO_PIN_GPIO02 2 /* Unrouted */
+#define U300_GPIO_PIN_GPIO03 3 /* Unrouted */
+#define U300_GPIO_PIN_CAM_SLEEP 4
+#define U300_GPIO_PIN_CAM_REG_EN 5
+#define U300_GPIO_PIN_GPIO06 6 /* Unrouted */
+#define U300_GPIO_PIN_GPIO07 7 /* Unrouted */
+
+#define U300_GPIO_PIN_GPIO08 8 /* Service point SP2321 */
+#define U300_GPIO_PIN_GPIO09 9 /* Service point SP2322 */
+#define U300_GPIO_PIN_PHFSENSE 10 /* Headphone jack sensing */
+#define U300_GPIO_PIN_MMC_CLKRET 11 /* Clock return from MMC/SD card */
+#define U300_GPIO_PIN_MMC_CD 12 /* MMC Card insertion detection */
+#define U300_GPIO_PIN_FLIPSENSE 13 /* Mechanical flip sensing */
+#define U300_GPIO_PIN_GPIO14 14 /* DSP JTAG Port RTCK */
+#define U300_GPIO_PIN_GPIO15 15 /* Unrouted */
+
+#define U300_GPIO_PIN_GPIO16 16 /* Unrouted */
+#define U300_GPIO_PIN_GPIO17 17 /* Unrouted */
+#define U300_GPIO_PIN_GPIO18 18 /* Unrouted */
+#define U300_GPIO_PIN_GPIO19 19 /* Unrouted */
+#define U300_GPIO_PIN_GPIO20 20 /* Unrouted */
+#define U300_GPIO_PIN_GPIO21 21 /* Unrouted */
+#define U300_GPIO_PIN_GPIO22 22 /* Unrouted */
+#define U300_GPIO_PIN_GPIO23 23 /* Unrouted */
+#endif
+
+/*
+ * Individual pin assignments for the B330/S330 and B365/S365.
+ * Notice that the actual usage of these pins depends on the
+ * PAD MUX settings, that is why the same number can potentially
+ * appear several times. In the reference design each pin is only
+ * used for one purpose. These were determined by inspecting the
+ * S365 schematic.
+ */
+#if defined(CONFIG_MACH_U300_BS330) || defined(CONFIG_MACH_U300_BS365) || \
+ defined(CONFIG_MACH_U300_BS335)
+#define U300_GPIO_PIN_UART_RX 0
+#define U300_GPIO_PIN_UART_TX 1
+#define U300_GPIO_PIN_UART_CTS 2
+#define U300_GPIO_PIN_UART_RTS 3
+#define U300_GPIO_PIN_CAM_MAIN_STANDBY 4 /* Camera MAIN standby */
+#define U300_GPIO_PIN_GPIO05 5 /* Unrouted */
+#define U300_GPIO_PIN_MS_CD 6 /* Memory Stick Card insertion */
+#define U300_GPIO_PIN_GPIO07 7 /* Test point TP2430 */
+
+#define U300_GPIO_PIN_GPIO08 8 /* Test point TP2437 */
+#define U300_GPIO_PIN_GPIO09 9 /* Test point TP2431 */
+#define U300_GPIO_PIN_GPIO10 10 /* Test point TP2432 */
+#define U300_GPIO_PIN_MMC_CLKRET 11 /* Clock return from MMC/SD card */
+#define U300_GPIO_PIN_MMC_CD 12 /* MMC Card insertion detection */
+#define U300_GPIO_PIN_CAM_SUB_STANDBY 13 /* Camera SUB standby */
+#define U300_GPIO_PIN_GPIO14 14 /* Test point TP2436 */
+#define U300_GPIO_PIN_GPIO15 15 /* Unrouted */
+
+#define U300_GPIO_PIN_GPIO16 16 /* Test point TP2438 */
+#define U300_GPIO_PIN_PHFSENSE 17 /* Headphone jack sensing */
+#define U300_GPIO_PIN_GPIO18 18 /* Test point TP2439 */
+#define U300_GPIO_PIN_GPIO19 19 /* Routed somewhere */
+#define U300_GPIO_PIN_GPIO20 20 /* Unrouted */
+#define U300_GPIO_PIN_GPIO21 21 /* Unrouted */
+#define U300_GPIO_PIN_GPIO22 22 /* Unrouted */
+#define U300_GPIO_PIN_GPIO23 23 /* Unrouted */
+
+#define U300_GPIO_PIN_GPIO24 24 /* Unrouted */
+#define U300_GPIO_PIN_GPIO25 25 /* Unrouted */
+#define U300_GPIO_PIN_GPIO26 26 /* Unrouted */
+#define U300_GPIO_PIN_GPIO27 27 /* Unrouted */
+#define U300_GPIO_PIN_GPIO28 28 /* Unrouted */
+#define U300_GPIO_PIN_GPIO29 29 /* Unrouted */
+#define U300_GPIO_PIN_GPIO30 30 /* Unrouted */
+#define U300_GPIO_PIN_GPIO31 31 /* Unrouted */
+
+#define U300_GPIO_PIN_GPIO32 32 /* Unrouted */
+#define U300_GPIO_PIN_GPIO33 33 /* Unrouted */
+#define U300_GPIO_PIN_GPIO34 34 /* Unrouted */
+#define U300_GPIO_PIN_GPIO35 35 /* Unrouted */
+#define U300_GPIO_PIN_GPIO36 36 /* Unrouted */
+#define U300_GPIO_PIN_GPIO37 37 /* Unrouted */
+#define U300_GPIO_PIN_GPIO38 38 /* Unrouted */
+#define U300_GPIO_PIN_GPIO39 39 /* Unrouted */
+
+#ifdef CONFIG_MACH_U300_BS335
+
+#define U300_GPIO_PIN_GPIO40 40 /* Unrouted */
+#define U300_GPIO_PIN_GPIO41 41 /* Unrouted */
+#define U300_GPIO_PIN_GPIO42 42 /* Unrouted */
+#define U300_GPIO_PIN_GPIO43 43 /* Unrouted */
+#define U300_GPIO_PIN_GPIO44 44 /* Unrouted */
+#define U300_GPIO_PIN_GPIO45 45 /* Unrouted */
+#define U300_GPIO_PIN_GPIO46 46 /* Unrouted */
+#define U300_GPIO_PIN_GPIO47 47 /* Unrouted */
+
+#define U300_GPIO_PIN_GPIO48 48 /* Unrouted */
+#define U300_GPIO_PIN_GPIO49 49 /* Unrouted */
+#define U300_GPIO_PIN_GPIO50 50 /* Unrouted */
+#define U300_GPIO_PIN_GPIO51 51 /* Unrouted */
+#define U300_GPIO_PIN_GPIO52 52 /* Unrouted */
+#define U300_GPIO_PIN_GPIO53 53 /* Unrouted */
+#define U300_GPIO_PIN_GPIO54 54 /* Unrouted */
+#define U300_GPIO_PIN_GPIO55 55 /* Unrouted */
+#endif
+
+#endif
+
+/* translates a pin number to a port number */
+#define PIN_TO_PORT(val) (val >> 3)
+
+/* These can be found in arch/arm/mach-u300/gpio.c */
+extern int gpio_request(unsigned gpio, const char *label);
+extern void gpio_free(unsigned gpio);
+extern int gpio_direction_input(unsigned gpio);
+extern int gpio_direction_output(unsigned gpio, int value);
+extern int gpio_register_callback(unsigned gpio,
+ int (*func)(void *arg),
+ void *);
+extern int gpio_unregister_callback(unsigned gpio);
+extern void enable_irq_on_gpio_pin(unsigned gpio, int edge);
+extern void disable_irq_on_gpio_pin(unsigned gpio);
+extern void gpio_pullup(unsigned gpio, int value);
+extern int gpio_get_value(unsigned gpio);
+extern void gpio_set_value(unsigned gpio, int value);
+
+/* wrappers to sleep-enable the previous two functions */
+static inline unsigned gpio_to_irq(unsigned gpio)
+{
+ return PIN_TO_PORT(gpio) + IRQ_U300_GPIO_PORT0;
+}
+
+static inline unsigned irq_to_gpio(unsigned irq)
+{
+ /*
+ * FIXME: This is no 1-1 mapping at all, it points to the
+ * whole block of 8 pins.
+ */
+ return (irq - IRQ_U300_GPIO_PORT0) << 3;
+}
+
+#endif
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