Commit a9aec30d authored by Fugang Duan's avatar Fugang Duan Committed by Shawn Guo
Browse files

ARM: imx6sl: config iomux-gpr1 to select clock for fec 



Config iomux-gpr1 to select clock source for fec system clock.
Clear gpr1[14], gpr1[18-17] bit to select the fec clock source
from internal anatop PLL.

Signed-off-by: default avatarFugang Duan <B38611@freescale.com>
Signed-off-by: default avatarShawn Guo <shawn.guo@linaro.org>
parent 7f6ac89c

arch/arm/mach-imx/mach-imx6sl.c

+21 −0
Original line number Diff line number Diff line
@@ -10,16 +10,37 @@ 
#include <linux/irqchip.h>

#include <linux/of.h>

#include <linux/of_platform.h>

#include <linux/mfd/syscon.h>

#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>

#include <linux/regmap.h>

#include <asm/mach/arch.h>

#include <asm/mach/map.h>



#include "common.h"



static void __init imx6sl_fec_init(void)

{

	struct regmap *gpr;



	/* set FEC clock from internal PLL clock source */

	gpr = syscon_regmap_lookup_by_compatible("fsl,imx6sl-iomuxc-gpr");

	if (!IS_ERR(gpr)) {

		regmap_update_bits(gpr, IOMUXC_GPR1,

			IMX6SL_GPR1_FEC_CLOCK_MUX2_SEL_MASK, 0);

		regmap_update_bits(gpr, IOMUXC_GPR1,

			IMX6SL_GPR1_FEC_CLOCK_MUX1_SEL_MASK, 0);

	} else {

		pr_err("failed to find fsl,imx6sl-iomux-gpr regmap\n");

	}

}



static void __init imx6sl_init_machine(void)

{

	mxc_arch_reset_init_dt();



	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);



	imx6sl_fec_init();

}



static void __init imx6sl_init_irq(void)

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