Eric Lee / smarc-uboot

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Commit 7d0b8cfeaa930b5946b993373a21b41ea0746be0

Authored by Justin Waters
Committed by Stefano Babic
1 parent 108f841859
Exists in v2017.01-smarct4x and in 29 other branches 8qm-imx_v2020.04_5.4.70_2.3.0, emb_lf_v2022.04, pitx_8mp_lf_v2020.04, smarc-8m-android-10.0.0_2.6.0, smarc-8m-android-11.0.0_2.0.0, smarc-8mp-android-11.0.0_2.0.0, smarc-imx6_v2018.03_4.14.98_2.0.0_ga, smarc-imx7_v2017.03_4.9.11_1.0.0_ga, smarc-imx7_v2018.03_4.14.98_2.0.0_ga, smarc-imx_v2017.03_4.9.11_1.0.0_ga, smarc-imx_v2017.03_4.9.88_2.0.0_ga, smarc-imx_v2017.03_o8.1.0_1.3.0_8m, smarc-imx_v2018.03_4.14.78_1.0.0_ga, smarc-n7.1.2_2.0.0-ga, smarc_8m-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8m-imx_v2019.04_4.19.35_1.1.0, smarc_8m_00d0-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8mm-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8mm-imx_v2019.04_4.19.35_1.1.0, smarc_8mm-imx_v2020.04_5.4.24_2.1.0, smarc_8mp_lf_v2020.04, smarc_8mq-imx_v2020.04_5.4.24_2.1.0, smarc_8mq_lf_v2020.04, v2016.05-dlt, v2016.05-smarct3x, v2016.05-smarct3x-emmc, v2016.05-smarct4x, v2017.01-smarct3x, v2017.01-smarct3x-emmc

board: ge: bx50v3: Disable unused pins 

Certain pins are not used on the i.MX6, and should have a neutral
pad configuration in order to reduce electrical interference on
the board. This commit defines these pins with a default value
rather than relying on the system defaults.

Signed-off-by: Justin Waters <justin.waters@timesys.com>
Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com>
Cc: Stefano Babic <sbabic@denx.de>

Showing 1 changed file with 10 additions and 0 deletions Side-by-side Diff

board/ge/bx50v3/bx50v3.c
Diff comments   View file @ 7d0b8cf
... ... @@ -27,6 +27,10 @@
27 27 #include <i2c.h>
28 28 DECLARE_GLOBAL_DATA_PTR;
29 29  
  30 +#define NC_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
  31 + PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
  32 + PAD_CTL_HYS)
  33 +
30 34 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
31 35 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
32 36 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
... ... @@ -467,6 +471,12 @@
467 471  
468 472 static iomux_v3_cfg_t const misc_pads[] = {
469 473 MX6_PAD_KEY_ROW2__GPIO4_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
  474 + MX6_PAD_EIM_A25__GPIO5_IO02 | MUX_PAD_CTRL(NC_PAD_CTRL),
  475 + MX6_PAD_EIM_CS0__GPIO2_IO23 | MUX_PAD_CTRL(NC_PAD_CTRL),
  476 + MX6_PAD_EIM_CS1__GPIO2_IO24 | MUX_PAD_CTRL(NC_PAD_CTRL),
  477 + MX6_PAD_EIM_OE__GPIO2_IO25 | MUX_PAD_CTRL(NC_PAD_CTRL),
  478 + MX6_PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NC_PAD_CTRL),
  479 + MX6_PAD_GPIO_1__GPIO1_IO01 | MUX_PAD_CTRL(NC_PAD_CTRL),
470 480 };
471 481 #define SUS_S3_OUT IMX_GPIO_NR(4, 11)
472 482 #define WIFI_EN IMX_GPIO_NR(6, 14)