Am Montag, den 17.09.2018, 18:36 +0200 schrieb Lucas Stach: > This is the default out-of-reset voltage, but if only the i.MX6 SoC > got reset, the PMIC might still be stuck at the lower volatge for the > slow operating point. > Please ignore, this patch is incomplete and I have a few more that might fit into this series, so will resend later. Regards, Lucas > Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx> > --- > arch/arm/boards/zii-imx6q-rdu2/board.c | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) > > diff --git a/arch/arm/boards/zii-imx6q-rdu2/board.c b/arch/arm/boards/zii-imx6q-rdu2/board.c > index f6c908c9f16d..bce221bf8d20 100644 > --- a/arch/arm/boards/zii-imx6q-rdu2/board.c > +++ b/arch/arm/boards/zii-imx6q-rdu2/board.c > @@ -137,10 +137,27 @@ late_initcall(rdu2_enable_front_panel_usb); > > static int rdu2_devices_init(void) > { > > + struct i2c_client client; > + > > if (!of_machine_is_compatible("zii,imx6q-zii-rdu2") && > > !of_machine_is_compatible("zii,imx6qp-zii-rdu2")) > > return 0; > > > + client.adapter = i2c_get_adapter(1); > > + if (client.adapter) { > > + u8 reg; > + > > + /* > > + * Reset PMIC SW1AB and SW1C rails to 1.375V. If an event > > + * caused only the i.MX6 SoC reset, the PMIC might still be > > + * stuck on the low voltage for the slow operating point. > > + */ > > + client.addr = 0x08; /* PMIC i2c address */ > > + reg = 0x2b; /* 1.375V, valid for both rails */ > > + i2c_write_reg(&client, 0x20, ®, 1); > > + i2c_write_reg(&client, 0x2e, ®, 1); > > + } > + > > barebox_set_hostname("rdu2"); > > > imx6_bbu_internal_spi_i2c_register_handler("SPI", "/dev/m25p0.barebox", _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox