| Message ID | CAOf5uwmyOZOTMBGnQU38-D=Emo6Rdrd8fDW9Hk+_r4RG4=+nrA@mail.gmail.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
On Thu, Mar 5, 2015 at 12:58 PM, Michael Trimarchi <michael@amarulasolutions.com> wrote: > Hi > > You should find the twl4030 power script and you should have something like this > > 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 *omap3_power_scripts[] __initdata = { > &wrst_script, > }; > > If I remember it was solved by some change here. In my old kernel I > have this commit > > Fix the reboot at lower frequency > > Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com> > > diff --git a/arch/arm/mach-omap2/board-panther.c > b/arch/arm/mach-omap2/board-panther.c > index ad2adf3..c71fdd9 100644 > --- a/arch/arm/mach-omap2/board-panther.c > +++ b/arch/arm/mach-omap2/board-panther.c > @@ -368,7 +368,7 @@ static int __init panther_i2c_init(void) > { > omap3_pmic_get_config(&panther_twldata, > TWL_COMMON_PDATA_MADC | > - TWL_COMMON_PDATA_AUDIO, > + TWL_COMMON_PDATA_AUDIO | TWL_COMMON_PDATA_POWER, > TWL_COMMON_REGULATOR_VDAC); > > omap3_pmic_init("twl4030", &panther_twldata); > > But this apply on an old device with a newer kernel and I don't > remember now the reason ;) Sorry. > > Is this an android device? (2.6.37??? is really old) > I have something quite different in my code: static int __init twl4030_config_warmreset_sequence(u8 address) { int err; u8 rd_data; /* Set WARM RESET SEQ address for P1 */ err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, R_SEQ_ADD_WARM); if (err) goto out; /* P1/P2/P3 enable WARMRESET */ err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data, R_P1_SW_EVENTS); if (err) goto out; rd_data |= ENABLE_WARMRESET; err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data, R_P1_SW_EVENTS); if (err) goto out; err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data, R_P2_SW_EVENTS); if (err) goto out; rd_data |= ENABLE_WARMRESET; err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data, R_P2_SW_EVENTS); if (err) goto out; err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data, R_P3_SW_EVENTS); if (err) goto out; rd_data |= ENABLE_WARMRESET; err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data, R_P3_SW_EVENTS); out: if (err) pr_err("TWL4030 warmreset seq config error\n"); return err; } And the board is TI's board_omap3evm.c. Ran -- To unsubscribe from this list: send the line "unsubscribe linux-pm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
I think I can also do some workaround if I set the frequency to the highest level just before doing reset. The thing is that I mustn't use sysfs in my system. Is there some way to set frequency without using sysfs ? -- To unsubscribe from this list: send the line "unsubscribe linux-pm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm/mach-omap2/board-panther.c b/arch/arm/mach-omap2/board-panther.c index ad2adf3..c71fdd9 100644 --- a/arch/arm/mach-omap2/board-panther.c +++ b/arch/arm/mach-omap2/board-panther.c @@ -368,7 +368,7 @@ static int __init panther_i2c_init(void) { omap3_pmic_get_config(&panther_twldata, TWL_COMMON_PDATA_MADC | - TWL_COMMON_PDATA_AUDIO, + TWL_COMMON_PDATA_AUDIO | TWL_COMMON_PDATA_POWER, TWL_COMMON_REGULATOR_VDAC); omap3_pmic_init("twl4030", &panther_twldata);
Hi You should find the twl4030 power script and you should have something like this 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 *omap3_power_scripts[] __initdata = { &wrst_script, }; If I remember it was solved by some change here. In my old kernel I have this commit Fix the reboot at lower frequency Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com> But this apply on an old device with a newer kernel and I don't remember now the reason ;) Sorry. Is this an android device? (2.6.37??? is really old) Michael On Thu, Mar 5, 2015 at 10:29 AM, Ran Shalit <ranshalit@gmail.com> wrote: >>> We observer that with highest available frequency (600000) reboot >>> command is OK, but when frequency is changed to lower value, the >>> reboot command fails. >>> Has anyone observed such behaviour ? >> >> I remember some commit for this problem. What version of the linux are >> you running? > > I use Linux version 2.6.37 #36 PREEMPT Thu Mar 5 10:56:04 IST 2015 > armv7l GNU/Linux > > Do you know how I can find this fix ? > > Thanks! > Ran