When rebooting an OMAP3530 at 125 MHz, the reboot hangs. This patch adds a generic power save script, which resets the TWL4030 when a warm reset occures. This way the OMAP3530 does not hang on reboot.
Signed-off-by: Matthias Brugger <[email protected]> --- arch/arm/mach-omap2/board-igep0020.c | 36 ++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c index 48d5e41..9ba1c4b 100644 --- a/arch/arm/mach-omap2/board-igep0020.c +++ b/arch/arm/mach-omap2/board-igep0020.c @@ -487,11 +487,47 @@ static struct twl4030_keypad_data igep2_keypad_pdata = { .rep = 1, }; +static struct twl4030_ins wrst_seq[] __initdata = { + {MSG_SINGULAR(DEV_GRP_NULL, 0x1b, RES_STATE_OFF), 2}, + {MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_WRST), 15}, + {MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_WRST), 15}, + {MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_WRST), 0x60}, + {MSG_SINGULAR(DEV_GRP_P1, 0x19, RES_STATE_ACTIVE), 2}, + {MSG_SINGULAR(DEV_GRP_NULL, 0x1b, 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 = { + &wrst_script, +}; + +static struct twl4030_resconfig twl4030_rconfig[] = { + { .resource = RES_HFCLKOUT, .devgroup = DEV_GRP_P3, .type = -1, + .type2 = -1 }, + { .resource = RES_VDD1, .devgroup = DEV_GRP_P1, .type = -1, + .type2 = -1 }, + { .resource = RES_VDD2, .devgroup = DEV_GRP_P1, .type = -1, + .type2 = -1 }, + { 0, 0}, +}; + +static struct twl4030_power_data igep_twl4030_power_data = { + .scripts = twl4030_scripts, + .num = ARRAY_SIZE(twl4030_scripts), + .resource_config = twl4030_rconfig, +}; + static struct twl4030_platform_data igep_twldata = { /* platform_data for children goes here */ .gpio = &igep_twl4030_gpio_pdata, .vmmc1 = &igep_vmmc1, .vio = &igep_vio, + .power = &igep_twl4030_power_data, }; static struct i2c_board_info __initdata igep2_i2c3_boardinfo[] = { -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
