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-rw-r--r--arch/arm/plat-mxc/include/mach/iomux-mx3.h74
1 files changed, 67 insertions, 7 deletions
diff --git a/arch/arm/plat-mxc/include/mach/iomux-mx3.h b/arch/arm/plat-mxc/include/mach/iomux-mx3.h
index c9198c0..ab838cfe 100644
--- a/arch/arm/plat-mxc/include/mach/iomux-mx3.h
+++ b/arch/arm/plat-mxc/include/mach/iomux-mx3.h
@@ -92,7 +92,7 @@ enum iomux_gp_func {
MUX_EXTDMAREQ2_MBX_SEL = 1 << 15,
MUX_TAMPER_DETECT_EN = 1 << 16,
MUX_PGP_USB_4WIRE = 1 << 17,
- MUX_PGB_USB_COMMON = 1 << 18,
+ MUX_PGP_USB_COMMON = 1 << 18,
MUX_SDHC_MEMSTICK1 = 1 << 19,
MUX_SDHC_MEMSTICK2 = 1 << 20,
MUX_PGP_SPLL_BYP = 1 << 21,
@@ -109,21 +109,44 @@ enum iomux_gp_func {
};
/*
- * This function enables/disables the general purpose function for a particular
- * signal.
+ * setups a single pin:
+ * - reserves the pin so that it is not claimed by another driver
+ * - setups the iomux according to the configuration
+ * - if the pin is configured as a GPIO, we claim it throug kernel gpiolib
+ */
+int mxc_iomux_setup_pin(const unsigned int pin, const char *label);
+/*
+ * setups mutliple pins
+ * convenient way to call the above function with tables
*/
-void iomux_config_gpr(enum iomux_gp_func , bool);
+int mxc_iomux_setup_multiple_pins(unsigned int *pin_list, unsigned count,
+ const char *label);
/*
- * set the mode for a IOMUX pin.
+ * releases a single pin:
+ * - make it available for a future use by another driver
+ * - frees the GPIO if the pin was configured as GPIO
+ * - DOES NOT reconfigure the IOMUX in its reset state
*/
-int mxc_iomux_mode(unsigned int);
+void mxc_iomux_release_pin(const unsigned int pin);
+/*
+ * releases multiple pins
+ * convenvient way to call the above function with tables
+ */
+void mxc_iomux_release_multiple_pins(unsigned int *pin_list, int count);
/*
* This function enables/disables the general purpose function for a particular
* signal.
*/
-void mxc_iomux_set_gpr(enum iomux_gp_func, bool);
+void mxc_iomux_set_gpr(enum iomux_gp_func, bool en);
+
+/*
+ * This function only configures the iomux hardware.
+ * It is called by the setup functions and should not be called directly anymore.
+ * It is here visible for backward compatibility
+ */
+int mxc_iomux_mode(unsigned int pin_mode);
#define IOMUX_PADNUM_MASK 0x1ff
#define IOMUX_GPIONUM_SHIFT 9
@@ -144,6 +167,11 @@ void mxc_iomux_set_gpr(enum iomux_gp_func, bool);
MXC_GPIO_IRQ_START)
/*
+ * The number of gpio devices among the pads
+ */
+#define GPIO_PORT_MAX 3
+
+/*
* This enumeration is constructed based on the Section
* "sw_pad_ctl & sw_mux_ctl details" of the MX31 IC Spec. Each enumerated
* value is constructed based on the rules described above.
@@ -480,6 +508,9 @@ enum iomux_pins {
MX31_PIN_CAPTURE = IOMUX_PIN( 7, 327),
};
+#define PIN_MAX 327
+#define NB_PORTS 12 /* NB_PINS/32, we chose 32 pins per "PORT" */
+
/*
* Convenience values for use with mxc_iomux_mode()
*
@@ -507,7 +538,9 @@ enum iomux_pins {
#define MX31_PIN_CSPI1_SS1__SS1 IOMUX_MODE(MX31_PIN_CSPI1_SS1, IOMUX_CONFIG_FUNC)
#define MX31_PIN_CSPI1_SS2__SS2 IOMUX_MODE(MX31_PIN_CSPI1_SS2, IOMUX_CONFIG_FUNC)
#define MX31_PIN_CSPI2_MOSI__MOSI IOMUX_MODE(MX31_PIN_CSPI2_MOSI, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_CSPI2_MOSI__SCL IOMUX_MODE(MX31_PIN_CSPI2_MOSI, IOMUX_CONFIG_ALT1)
#define MX31_PIN_CSPI2_MISO__MISO IOMUX_MODE(MX31_PIN_CSPI2_MISO, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_CSPI2_MISO__SDA IOMUX_MODE(MX31_PIN_CSPI2_MISO, IOMUX_CONFIG_ALT1)
#define MX31_PIN_CSPI2_SCLK__SCLK IOMUX_MODE(MX31_PIN_CSPI2_SCLK, IOMUX_CONFIG_FUNC)
#define MX31_PIN_CSPI2_SPI_RDY__SPI_RDY IOMUX_MODE(MX31_PIN_CSPI2_SPI_RDY, IOMUX_CONFIG_FUNC)
#define MX31_PIN_CSPI2_SS0__SS0 IOMUX_MODE(MX31_PIN_CSPI2_SS0, IOMUX_CONFIG_FUNC)
@@ -525,6 +558,33 @@ enum iomux_pins {
#define MX31_PIN_SD1_DATA0__SD1_DATA0 IOMUX_MODE(MX31_PIN_SD1_DATA0, IOMUX_CONFIG_FUNC)
#define MX31_PIN_SD1_CLK__SD1_CLK IOMUX_MODE(MX31_PIN_SD1_CLK, IOMUX_CONFIG_FUNC)
#define MX31_PIN_SD1_CMD__SD1_CMD IOMUX_MODE(MX31_PIN_SD1_CMD, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD0__LD0 IOMUX_MODE(MX31_PIN_LD0, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD1__LD1 IOMUX_MODE(MX31_PIN_LD1, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD2__LD2 IOMUX_MODE(MX31_PIN_LD2, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD3__LD3 IOMUX_MODE(MX31_PIN_LD3, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD4__LD4 IOMUX_MODE(MX31_PIN_LD4, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD5__LD5 IOMUX_MODE(MX31_PIN_LD5, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD6__LD6 IOMUX_MODE(MX31_PIN_LD6, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD7__LD7 IOMUX_MODE(MX31_PIN_LD7, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD8__LD8 IOMUX_MODE(MX31_PIN_LD8, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD9__LD9 IOMUX_MODE(MX31_PIN_LD9, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD10__LD10 IOMUX_MODE(MX31_PIN_LD10, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD11__LD11 IOMUX_MODE(MX31_PIN_LD11, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD12__LD12 IOMUX_MODE(MX31_PIN_LD12, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD13__LD13 IOMUX_MODE(MX31_PIN_LD13, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD14__LD14 IOMUX_MODE(MX31_PIN_LD14, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD15__LD15 IOMUX_MODE(MX31_PIN_LD15, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD16__LD16 IOMUX_MODE(MX31_PIN_LD16, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LD17__LD17 IOMUX_MODE(MX31_PIN_LD17, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_VSYNC3__VSYNC3 IOMUX_MODE(MX31_PIN_VSYNC3, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_HSYNC__HSYNC IOMUX_MODE(MX31_PIN_HSYNC, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_FPSHIFT__FPSHIFT IOMUX_MODE(MX31_PIN_FPSHIFT, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_DRDY0__DRDY0 IOMUX_MODE(MX31_PIN_DRDY0, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_D3_REV__D3_REV IOMUX_MODE(MX31_PIN_D3_REV, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_CONTRAST__CONTRAST IOMUX_MODE(MX31_PIN_CONTRAST, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_D3_SPL__D3_SPL IOMUX_MODE(MX31_PIN_D3_SPL, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_D3_CLS__D3_CLS IOMUX_MODE(MX31_PIN_D3_CLS, IOMUX_CONFIG_FUNC)
+#define MX31_PIN_LCS0__GPI03_23 IOMUX_MODE(MX31_PIN_LCS0, IOMUX_CONFIG_GPIO)
/*XXX: The SS0, SS1, SS2, SS3 lines of spi3 are multiplexed by cspi2_ss0, cspi2_ss1, cspi1_ss0
* cspi1_ss1*/
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