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Commit da9e9261 authored by Anson Huang's avatar Anson Huang Committed by Shawn Guo
Browse files

ARM: imx: add suspend in ocram support for i.mx6dl 



i.MX6DL's suspend in ocram function is derived from i.MX6Q,
it can lower the DDR IO power from ~26mA@1.5V to ~15mA@1.5V,
measured on i.MX6DL SabreSD board, R25.

Signed-off-by: default avatarAnson Huang <b20788@freescale.com>
Signed-off-by: default avatarShawn Guo <shawn.guo@linaro.org>
parent df595746

arch/arm/mach-imx/pm-imx6q.c

+23 −1
Original line number Original line Diff line number Diff line
@@ -109,6 +109,18 @@ static const u32 imx6q_mmdc_io_offset[] __initconst = { 
	0x74c,			    /* GPR_ADDS */

	0x74c,			    /* GPR_ADDS */

};

};





static const u32 imx6dl_mmdc_io_offset[] __initconst = {

	0x470, 0x474, 0x478, 0x47c, /* DQM0 ~ DQM3 */

	0x480, 0x484, 0x488, 0x48c, /* DQM4 ~ DQM7 */

	0x464, 0x490, 0x4ac, 0x4b0, /* CAS, RAS, SDCLK_0, SDCLK_1 */

	0x4bc, 0x4c0, 0x4c4, 0x4c8, /* DRAM_SDQS0 ~ DRAM_SDQS3 */

	0x4cc, 0x4d0, 0x4d4, 0x4d8, /* DRAM_SDQS4 ~ DRAM_SDQS7 */

	0x764, 0x770, 0x778, 0x77c, /* GPR_B0DS ~ GPR_B3DS */

	0x780, 0x784, 0x78c, 0x748, /* GPR_B4DS ~ GPR_B7DS */

	0x4b4, 0x4b8, 0x750, 0x760, /* SODT0, SODT1, MODE_CTL, MODE */

	0x74c,			    /* GPR_ADDS */

};



static const struct imx6_pm_socdata imx6q_pm_data __initconst = {

static const struct imx6_pm_socdata imx6q_pm_data __initconst = {

	.cpu_type = MXC_CPU_IMX6Q,

	.cpu_type = MXC_CPU_IMX6Q,

	.mmdc_compat = "fsl,imx6q-mmdc",

	.mmdc_compat = "fsl,imx6q-mmdc",
@@ -119,6 +131,16 @@ static const struct imx6_pm_socdata imx6q_pm_data __initconst = { 
	.mmdc_io_offset = imx6q_mmdc_io_offset,

	.mmdc_io_offset = imx6q_mmdc_io_offset,

};

};





static const struct imx6_pm_socdata imx6dl_pm_data __initconst = {

	.cpu_type = MXC_CPU_IMX6DL,

	.mmdc_compat = "fsl,imx6q-mmdc",

	.src_compat = "fsl,imx6q-src",

	.iomuxc_compat = "fsl,imx6dl-iomuxc",

	.gpc_compat = "fsl,imx6q-gpc",

	.mmdc_io_num = ARRAY_SIZE(imx6dl_mmdc_io_offset),

	.mmdc_io_offset = imx6dl_mmdc_io_offset,

};



/*

/*

 * This structure is for passing necessary data for low level ocram

 * This structure is for passing necessary data for low level ocram

 * suspend code(arch/arm/mach-imx/suspend-imx6.S), if this struct

 * suspend code(arch/arm/mach-imx/suspend-imx6.S), if this struct
@@ -503,7 +525,7 @@ void __init imx6q_pm_init(void) 




void __init imx6dl_pm_init(void)

void __init imx6dl_pm_init(void)

{

{

	imx6_pm_common_init(NULL);

	imx6_pm_common_init(&imx6dl_pm_data);

}

}





void __init imx6sl_pm_init(void)

void __init imx6sl_pm_init(void)