mx31moboard: two GPIOS are used to reset other microcontrolers on the robot (2718c15c) · Commits · e / devices / android_kernel_teracube_2e

arch/arm/mach-mx3/mx31moboard-marxbot.c

+20 −0

Original line number	Diff line number	Diff line
		@@ -47,6 +47,8 @@ static unsigned int marxbot_pins[] = {
		MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC,
		MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1,
		MX31_PIN_TXD2__GPIO1_28,
		/* dsPIC resets */
		MX31_PIN_STXD5__GPIO1_21, MX31_PIN_SRXD5__GPIO1_22,
		};

		#define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR)
		@@ -102,6 +104,22 @@ static struct imxmmc_platform_data sdhc2_pdata = {
		.exit = marxbot_sdhc2_exit,
		};

		#define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_STXD5)
		#define DSPICS_RST_B IOMUX_TO_GPIO(MX31_PIN_SRXD5)

		static void dspics_resets_init(void)
		{
		if (!gpio_request(TRSLAT_RST_B, "translator-rst")) {
		gpio_direction_output(TRSLAT_RST_B, 1);
		gpio_export(TRSLAT_RST_B, false);
		}

		if (!gpio_request(DSPICS_RST_B, "dspics-rst")) {
		gpio_direction_output(DSPICS_RST_B, 1);
		gpio_export(DSPICS_RST_B, false);
		}
		}

		/*
		* system init for baseboard usage. Will be called by mx31moboard init.
		*/
		@@ -112,5 +130,7 @@ void __init mx31moboard_marxbot_init(void)
		mxc_iomux_setup_multiple_pins(marxbot_pins, ARRAY_SIZE(marxbot_pins),
		"marxbot");

		dspics_resets_init();

		mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata);
		}