On 08/25/2015 01:30 AM, [email protected] wrote: > From: Shaohui Xie <[email protected]> > > A U-boot CMD vdd_read is implemented to read Core voltage. > > Signed-off-by: Shaohui Xie <[email protected]> > --- > board/freescale/t4qds/t4240qds.c | 30 ++++++++++++++++++++++++++++++ > 1 file changed, 30 insertions(+) > > diff --git a/board/freescale/t4qds/t4240qds.c > b/board/freescale/t4qds/t4240qds.c > index 4f2cccd..56273e4 100644 > --- a/board/freescale/t4qds/t4240qds.c > +++ b/board/freescale/t4qds/t4240qds.c > @@ -887,8 +887,38 @@ static int do_vdd_adjust(cmd_tbl_t *cmdtp, > return 0; > } > > +static int do_vdd_read(cmd_tbl_t *cmdtp, > + int flag, int argc, > + char * const argv[]) > +{ > + int vdd, ret; > + > + if (argc < 1) > + return CMD_RET_USAGE; > + > + ret = select_i2c_ch_pca9547(I2C_MUX_CH_VOL_MONITOR); > + if (ret) { > + printf("VID: I2c failed to switch channel\n"); > + return 0; > + } > + > + vdd = read_voltage(); > + if (vdd < 0) > + printf("VID: Could not read voltage\n"); > + else > + printf("VID: Core voltage is at %d mV\n", vdd); > + > + return 0; > +} > + > U_BOOT_CMD( > vdd_override, 2, 0, do_vdd_adjust, > "Override VDD", > "- override with the voltage specified in mV, eg. 1050" > ); > + > +U_BOOT_CMD( > + vdd_read, 1, 0, do_vdd_read, > + "read VDD", > + " - Read the voltage specified in mV" > +) >
Can you explain why you need this command? You already get the voltage if you run bdinfo. If you override vdd, you also get a print. York _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
