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Commit 9312fffb authored by Amit Kucheria's avatar Amit Kucheria Committed by Samuel Ortiz
Browse files

mfd: OMAP: Board-specifc twl4030 DPS scripts for RX51 board 



Add support for Dynamic Power Switching (DPS) for the RX51 board.

These scripts are still a work-in-progress. I'll keep sending patches to
update the scripts as they are optimised.

Signed-off-by: default avatarAmit Kucheria <amit.kucheria@verdurent.com>
Acked-by: default avatarTony Lindgren <tony@atomide.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 75a74565

arch/arm/mach-omap2/board-rx51-peripherals.c

+120 −2
Original line number Diff line number Diff line 
/*

 * linux/arch/arm/mach-omap2/board-rx51-flash.c

 * linux/arch/arm/mach-omap2/board-rx51-peripherals.c

 *

 * Copyright (C) 2008-2009 Nokia

 *
@@ -282,7 +282,124 @@ static struct twl4030_usb_data rx51_usb_data = { 
	.usb_mode		= T2_USB_MODE_ULPI,

};



static struct twl4030_platform_data rx51_twldata = {

static struct twl4030_ins sleep_on_seq[] __initdata = {

/*

 * Turn off VDD1 and VDD2.

 */

	{MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_OFF), 4},

	{MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_OFF), 2},

/*

 * And also turn off the OMAP3 PLLs and the sysclk output.

 */

	{MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_OFF), 3},

	{MSG_SINGULAR(DEV_GRP_P1, 0x17, RES_STATE_OFF), 3},

};



static struct twl4030_script sleep_on_script __initdata = {

	.script = sleep_on_seq,

	.size   = ARRAY_SIZE(sleep_on_seq),

	.flags  = TWL4030_SLEEP_SCRIPT,

};



static struct twl4030_ins wakeup_seq[] __initdata = {

/*

 * Reenable the OMAP3 PLLs.

 * Wakeup VDD1 and VDD2.

 * Reenable sysclk output.

 */

	{MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_ACTIVE), 0x30},

	{MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_ACTIVE), 0x30},

	{MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_ACTIVE), 0x37},

	{MSG_SINGULAR(DEV_GRP_P1, 0x19, RES_STATE_ACTIVE), 3},

};



static struct twl4030_script wakeup_script __initdata = {

	.script	= wakeup_seq,

	.size	= ARRAY_SIZE(wakeup_seq),

	.flags	= TWL4030_WAKEUP12_SCRIPT,

};



static struct twl4030_ins wakeup_p3_seq[] __initdata = {

/*

 * Wakeup VDD1 (dummy to be able to insert a delay)

 * Enable CLKEN

 */

	{MSG_SINGULAR(DEV_GRP_P1, 0x17, RES_STATE_ACTIVE), 3},

};



static struct twl4030_script wakeup_p3_script __initdata = {

	.script	= wakeup_p3_seq,

	.size	= ARRAY_SIZE(wakeup_p3_seq),

	.flags	= TWL4030_WAKEUP3_SCRIPT,

};



static struct twl4030_ins wrst_seq[] __initdata = {

/*

 * Reset twl4030.

 * Reset VDD1 regulator.

 * Reset VDD2 regulator.

 * Reset VPLL1 regulator.

 * Enable sysclk output.

 * Reenable twl4030.

 */

	{MSG_SINGULAR(DEV_GRP_NULL, RES_RESET, RES_STATE_OFF), 2},

	{MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_ALL, 0, 1, RES_STATE_ACTIVE),

		0x13},

	{MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_PP, 0, 2, RES_STATE_WRST), 0x13},

	{MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_PP, 0, 3, RES_STATE_OFF), 0x13},

	{MSG_SINGULAR(DEV_GRP_NULL, RES_VDD1, RES_STATE_WRST), 0x13},

	{MSG_SINGULAR(DEV_GRP_NULL, RES_VDD2, RES_STATE_WRST), 0x13},

	{MSG_SINGULAR(DEV_GRP_NULL, RES_VPLL1, RES_STATE_WRST), 0x35},

	{MSG_SINGULAR(DEV_GRP_P1, RES_HFCLKOUT, RES_STATE_ACTIVE), 2},

	{MSG_SINGULAR(DEV_GRP_NULL, RES_RESET, RES_STATE_ACTIVE), 2},

};



static struct twl4030_script wrst_script __initdata = {

	.script = wrst_seq,

	.size   = ARRAY_SIZE(wrst_seq),

	.flags  = TWL4030_WRST_SCRIPT,

};



static struct twl4030_script *twl4030_scripts[] __initdata = {

	/* wakeup12 script should be loaded before sleep script, otherwise a

	   board might hit retention before loading of wakeup script is

	   completed. This can cause boot failures depending on timing issues.

	*/

	&wakeup_script,

	&sleep_on_script,

	&wakeup_p3_script,

	&wrst_script,

};



static struct twl4030_resconfig twl4030_rconfig[] __initdata = {

	{ .resource = RES_VINTANA1, .devgroup = -1, .type = -1, .type2 = 1 },

	{ .resource = RES_VINTANA2, .devgroup = -1, .type = -1, .type2 = 1 },

	{ .resource = RES_VINTDIG, .devgroup = -1, .type = -1, .type2 = 1 },

	{ .resource = RES_VMMC1, .devgroup = -1, .type = -1, .type2 = 3},

	{ .resource = RES_VMMC2, .devgroup = DEV_GRP_NULL, .type = -1,

	  .type2 = 3},

	{ .resource = RES_VAUX1, .devgroup = -1, .type = -1, .type2 = 3},

	{ .resource = RES_VAUX2, .devgroup = -1, .type = -1, .type2 = 3},

	{ .resource = RES_VAUX3, .devgroup = -1, .type = -1, .type2 = 3},

	{ .resource = RES_VAUX4, .devgroup = -1, .type = -1, .type2 = 3},

	{ .resource = RES_VPLL2, .devgroup = -1, .type = -1, .type2 = 3},

	{ .resource = RES_VDAC, .devgroup = -1, .type = -1, .type2 = 3},

	{ .resource = RES_VSIM, .devgroup = DEV_GRP_NULL, .type = -1,

	  .type2 = 3},

	{ .resource = RES_CLKEN, .devgroup = DEV_GRP_P3, .type = -1,

		.type2 = 1 },

	{ 0, 0},

};



static struct twl4030_power_data rx51_t2scripts_data __initdata = {

	.scripts        = twl4030_scripts,

	.num = ARRAY_SIZE(twl4030_scripts),

	.resource_config = twl4030_rconfig,

};







static struct twl4030_platform_data rx51_twldata __initdata = {

	.irq_base		= TWL4030_IRQ_BASE,

	.irq_end		= TWL4030_IRQ_END,
@@ -291,6 +408,7 @@ static struct twl4030_platform_data rx51_twldata = { 
	.keypad			= &rx51_kp_data,

	.madc			= &rx51_madc_data,

	.usb			= &rx51_usb_data,

	.power			= &rx51_t2scripts_data,



	.vaux1			= &rx51_vaux1,

	.vaux2			= &rx51_vaux2,