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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: Amit Kucheria <amit.kucheria@verdurent.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Amit Kucheria
Samuel Ortiz
parent
75a7456539
commit
9312fffbad
@ -1,5 +1,5 @@
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/*
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* linux/arch/arm/mach-omap2/board-rx51-flash.c
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* linux/arch/arm/mach-omap2/board-rx51-peripherals.c
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*
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* Copyright (C) 2008-2009 Nokia
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*
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@ -282,7 +282,124 @@ static struct twl4030_usb_data rx51_usb_data = {
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.usb_mode = T2_USB_MODE_ULPI,
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};
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static struct twl4030_platform_data rx51_twldata = {
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static struct twl4030_ins sleep_on_seq[] __initdata = {
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/*
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* Turn off VDD1 and VDD2.
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*/
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{MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_OFF), 4},
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{MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_OFF), 2},
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/*
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* And also turn off the OMAP3 PLLs and the sysclk output.
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*/
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{MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_OFF), 3},
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{MSG_SINGULAR(DEV_GRP_P1, 0x17, RES_STATE_OFF), 3},
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};
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static struct twl4030_script sleep_on_script __initdata = {
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.script = sleep_on_seq,
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.size = ARRAY_SIZE(sleep_on_seq),
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.flags = TWL4030_SLEEP_SCRIPT,
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};
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static struct twl4030_ins wakeup_seq[] __initdata = {
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/*
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* Reenable the OMAP3 PLLs.
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* Wakeup VDD1 and VDD2.
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* Reenable sysclk output.
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*/
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{MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_ACTIVE), 0x30},
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{MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_ACTIVE), 0x30},
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{MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_ACTIVE), 0x37},
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{MSG_SINGULAR(DEV_GRP_P1, 0x19, RES_STATE_ACTIVE), 3},
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};
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static struct twl4030_script wakeup_script __initdata = {
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.script = wakeup_seq,
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.size = ARRAY_SIZE(wakeup_seq),
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.flags = TWL4030_WAKEUP12_SCRIPT,
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};
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static struct twl4030_ins wakeup_p3_seq[] __initdata = {
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/*
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* Wakeup VDD1 (dummy to be able to insert a delay)
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* Enable CLKEN
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*/
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{MSG_SINGULAR(DEV_GRP_P1, 0x17, RES_STATE_ACTIVE), 3},
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};
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static struct twl4030_script wakeup_p3_script __initdata = {
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.script = wakeup_p3_seq,
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.size = ARRAY_SIZE(wakeup_p3_seq),
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.flags = TWL4030_WAKEUP3_SCRIPT,
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};
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static struct twl4030_ins wrst_seq[] __initdata = {
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/*
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* Reset twl4030.
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* Reset VDD1 regulator.
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* Reset VDD2 regulator.
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* Reset VPLL1 regulator.
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* Enable sysclk output.
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* Reenable twl4030.
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*/
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{MSG_SINGULAR(DEV_GRP_NULL, RES_RESET, RES_STATE_OFF), 2},
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{MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_ALL, 0, 1, RES_STATE_ACTIVE),
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0x13},
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{MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_PP, 0, 2, RES_STATE_WRST), 0x13},
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{MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_PP, 0, 3, RES_STATE_OFF), 0x13},
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{MSG_SINGULAR(DEV_GRP_NULL, RES_VDD1, RES_STATE_WRST), 0x13},
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{MSG_SINGULAR(DEV_GRP_NULL, RES_VDD2, RES_STATE_WRST), 0x13},
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{MSG_SINGULAR(DEV_GRP_NULL, RES_VPLL1, RES_STATE_WRST), 0x35},
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{MSG_SINGULAR(DEV_GRP_P1, RES_HFCLKOUT, RES_STATE_ACTIVE), 2},
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{MSG_SINGULAR(DEV_GRP_NULL, RES_RESET, RES_STATE_ACTIVE), 2},
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};
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static struct twl4030_script wrst_script __initdata = {
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.script = wrst_seq,
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.size = ARRAY_SIZE(wrst_seq),
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.flags = TWL4030_WRST_SCRIPT,
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};
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static struct twl4030_script *twl4030_scripts[] __initdata = {
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/* wakeup12 script should be loaded before sleep script, otherwise a
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board might hit retention before loading of wakeup script is
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completed. This can cause boot failures depending on timing issues.
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*/
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&wakeup_script,
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&sleep_on_script,
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&wakeup_p3_script,
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&wrst_script,
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};
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static struct twl4030_resconfig twl4030_rconfig[] __initdata = {
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{ .resource = RES_VINTANA1, .devgroup = -1, .type = -1, .type2 = 1 },
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{ .resource = RES_VINTANA2, .devgroup = -1, .type = -1, .type2 = 1 },
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{ .resource = RES_VINTDIG, .devgroup = -1, .type = -1, .type2 = 1 },
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{ .resource = RES_VMMC1, .devgroup = -1, .type = -1, .type2 = 3},
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{ .resource = RES_VMMC2, .devgroup = DEV_GRP_NULL, .type = -1,
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.type2 = 3},
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{ .resource = RES_VAUX1, .devgroup = -1, .type = -1, .type2 = 3},
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{ .resource = RES_VAUX2, .devgroup = -1, .type = -1, .type2 = 3},
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{ .resource = RES_VAUX3, .devgroup = -1, .type = -1, .type2 = 3},
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{ .resource = RES_VAUX4, .devgroup = -1, .type = -1, .type2 = 3},
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{ .resource = RES_VPLL2, .devgroup = -1, .type = -1, .type2 = 3},
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{ .resource = RES_VDAC, .devgroup = -1, .type = -1, .type2 = 3},
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{ .resource = RES_VSIM, .devgroup = DEV_GRP_NULL, .type = -1,
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.type2 = 3},
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{ .resource = RES_CLKEN, .devgroup = DEV_GRP_P3, .type = -1,
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.type2 = 1 },
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{ 0, 0},
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};
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static struct twl4030_power_data rx51_t2scripts_data __initdata = {
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.scripts = twl4030_scripts,
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.num = ARRAY_SIZE(twl4030_scripts),
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.resource_config = twl4030_rconfig,
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};
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static struct twl4030_platform_data rx51_twldata __initdata = {
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.irq_base = TWL4030_IRQ_BASE,
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.irq_end = TWL4030_IRQ_END,
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@ -291,6 +408,7 @@ static struct twl4030_platform_data rx51_twldata = {
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.keypad = &rx51_kp_data,
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.madc = &rx51_madc_data,
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.usb = &rx51_usb_data,
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.power = &rx51_t2scripts_data,
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.vaux1 = &rx51_vaux1,
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.vaux2 = &rx51_vaux2,
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