Commit 22021948 authored by Anson Huang's avatar Anson Huang Committed by Shawn Guo
Browse files

ARM: imx: add mem mode suspend for i.MX6SLL 



Add mem mode suspend for i.MX6SLL, when linux
kernel suspend, SoC will enter STOP mode,
ARM core will be power gated and MMDC IO
will be set to low power mode.

Signed-off-by: default avatarAnson Huang <Anson.Huang@nxp.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 07c4be9d

arch/arm/mach-imx/pm-imx6.c

+22 −2
Original line number Diff line number Diff line
@@ -130,6 +130,13 @@ static const u32 imx6sl_mmdc_io_offset[] __initconst = { 
	0x330, 0x334, 0x320,        /* SDCKE0, SDCKE1, RESET */

};



static const u32 imx6sll_mmdc_io_offset[] __initconst = {

	0x294, 0x298, 0x29c, 0x2a0, /* DQM0 ~ DQM3 */

	0x544, 0x54c, 0x554, 0x558, /* GPR_B0DS ~ GPR_B3DS */

	0x530, 0x540, 0x2ac, 0x52c, /* MODE_CTL, MODE, SDCLK_0, GPR_ADDDS */

	0x2a4, 0x2a8,		    /* SDCKE0, SDCKE1*/

};



static const u32 imx6sx_mmdc_io_offset[] __initconst = {

	0x2ec, 0x2f0, 0x2f4, 0x2f8, /* DQM0 ~ DQM3 */

	0x60c, 0x610, 0x61c, 0x620, /* GPR_B0DS ~ GPR_B3DS */
@@ -175,6 +182,16 @@ static const struct imx6_pm_socdata imx6sl_pm_data __initconst = { 
	.mmdc_io_offset = imx6sl_mmdc_io_offset,

};



static const struct imx6_pm_socdata imx6sll_pm_data __initconst = {

	.mmdc_compat = "fsl,imx6sll-mmdc",

	.src_compat = "fsl,imx6sll-src",

	.iomuxc_compat = "fsl,imx6sll-iomuxc",

	.gpc_compat = "fsl,imx6sll-gpc",

	.pl310_compat = "arm,pl310-cache",

	.mmdc_io_num = ARRAY_SIZE(imx6sll_mmdc_io_offset),

	.mmdc_io_offset = imx6sll_mmdc_io_offset,

};



static const struct imx6_pm_socdata imx6sx_pm_data __initconst = {

	.mmdc_compat = "fsl,imx6sx-mmdc",

	.src_compat = "fsl,imx6sx-src",
@@ -314,7 +331,7 @@ int imx6_set_lpm(enum mxc_cpu_pwr_mode mode) 
		if (cpu_is_imx6sl() || cpu_is_imx6sx())

			val |= BM_CLPCR_BYPASS_PMIC_READY;

		if (cpu_is_imx6sl() || cpu_is_imx6sx() || cpu_is_imx6ul() ||

		    cpu_is_imx6ull())

		    cpu_is_imx6ull() || cpu_is_imx6sll())

			val |= BM_CLPCR_BYP_MMDC_CH0_LPM_HS;

		else

			val |= BM_CLPCR_BYP_MMDC_CH1_LPM_HS;
@@ -631,7 +648,10 @@ void __init imx6dl_pm_init(void) 


void __init imx6sl_pm_init(void)

{

	if (cpu_is_imx6sl())

		imx6_pm_common_init(&imx6sl_pm_data);

	else

		imx6_pm_common_init(&imx6sll_pm_data);

}



void __init imx6sx_pm_init(void)

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