ARM: mxs/mx28evk: add flexcan devices (acc9cdca) · Commits · e / devices / android_kernel_oneplus_sm8150

arch/arm/mach-mxs/Kconfig

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -34,6 +34,7 @@ config MACH_MX28EVK
	select MXS_HAVE_AMBA_DUART		select MXS_HAVE_AMBA_DUART
	select MXS_HAVE_PLATFORM_AUART		select MXS_HAVE_PLATFORM_AUART
	select MXS_HAVE_PLATFORM_FEC		select MXS_HAVE_PLATFORM_FEC
			select MXS_HAVE_PLATFORM_FLEXCAN
	select MXS_OCOTP		select MXS_OCOTP
	default y		default y
	help		help

arch/arm/mach-mxs/mach-mx28evk.c

+55 −0

Original line number	Original line	Diff line number	Diff line
	@@ -28,6 +28,7 @@
	#include "devices-mx28.h"		#include "devices-mx28.h"
	#include "gpio.h"		#include "gpio.h"

			#define MX28EVK_FLEXCAN_SWITCH MXS_GPIO_NR(2, 13)
	#define MX28EVK_FEC_PHY_POWER MXS_GPIO_NR(2, 15)		#define MX28EVK_FEC_PHY_POWER MXS_GPIO_NR(2, 15)
	#define MX28EVK_FEC_PHY_RESET MXS_GPIO_NR(4, 13)		#define MX28EVK_FEC_PHY_RESET MXS_GPIO_NR(4, 13)

	@@ -69,6 +70,15 @@ static const iomux_cfg_t mx28evk_pads[] __initconst = {
	MX28_PAD_SSP1_DATA3__GPIO_2_15 \| MXS_PAD_CTRL,		MX28_PAD_SSP1_DATA3__GPIO_2_15 \| MXS_PAD_CTRL,
	/* phy reset line */		/* phy reset line */
	MX28_PAD_ENET0_RX_CLK__GPIO_4_13 \| MXS_PAD_CTRL,		MX28_PAD_ENET0_RX_CLK__GPIO_4_13 \| MXS_PAD_CTRL,

			/* flexcan0 */
			MX28_PAD_GPMI_RDY2__CAN0_TX,
			MX28_PAD_GPMI_RDY3__CAN0_RX,
			/* flexcan1 */
			MX28_PAD_GPMI_CE2N__CAN1_TX,
			MX28_PAD_GPMI_CE3N__CAN1_RX,
			/* transceiver power control */
			MX28_PAD_SSP1_CMD__GPIO_2_13,
	};		};

	/* fec */		/* fec */
	@@ -152,8 +162,44 @@ static int __init mx28evk_fec_get_mac(void)
	return -ETIMEDOUT;		return -ETIMEDOUT;
	}		}

			/*
			* MX28EVK_FLEXCAN_SWITCH is shared between both flexcan controllers
			*/
			static int flexcan0_en, flexcan1_en;

			static void mx28evk_flexcan_switch(void)
			{
			if (flexcan0_en \|\| flexcan1_en)
			gpio_set_value(MX28EVK_FLEXCAN_SWITCH, 1);
			else
			gpio_set_value(MX28EVK_FLEXCAN_SWITCH, 0);
			}

			static void mx28evk_flexcan0_switch(int enable)
			{
			flexcan0_en = enable;
			mx28evk_flexcan_switch();
			}

			static void mx28evk_flexcan1_switch(int enable)
			{
			flexcan1_en = enable;
			mx28evk_flexcan_switch();
			}

			static const struct flexcan_platform_data
			mx28evk_flexcan_pdata[] __initconst = {
			{
			.transceiver_switch = mx28evk_flexcan0_switch,
			}, {
			.transceiver_switch = mx28evk_flexcan1_switch,
			}
			};

	static void __init mx28evk_init(void)		static void __init mx28evk_init(void)
	{		{
			int ret;

	mxs_iomux_setup_multiple_pads(mx28evk_pads, ARRAY_SIZE(mx28evk_pads));		mxs_iomux_setup_multiple_pads(mx28evk_pads, ARRAY_SIZE(mx28evk_pads));

	mx28_add_duart();		mx28_add_duart();
	@@ -166,6 +212,15 @@ static void __init mx28evk_init(void)
	mx28evk_fec_reset();		mx28evk_fec_reset();
	mx28_add_fec(0, &mx28_fec_pdata[0]);		mx28_add_fec(0, &mx28_fec_pdata[0]);
	mx28_add_fec(1, &mx28_fec_pdata[1]);		mx28_add_fec(1, &mx28_fec_pdata[1]);

			ret = gpio_request_one(MX28EVK_FLEXCAN_SWITCH, GPIOF_DIR_OUT,
			"flexcan-switch");
			if (ret) {
			pr_err("failed to request gpio flexcan-switch: %d\n", ret);
			} else {
			mx28_add_flexcan(0, &mx28evk_flexcan_pdata[0]);
			mx28_add_flexcan(1, &mx28evk_flexcan_pdata[1]);
			}
	}		}

	static void __init mx28evk_timer_init(void)		static void __init mx28evk_timer_init(void)