From 7d0b8cfeaa930b5946b993373a21b41ea0746be0 Mon Sep 17 00:00:00 2001 From: Justin Waters Date: Wed, 13 Apr 2016 17:03:18 -0400 Subject: [PATCH] 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 Signed-off-by: Akshay Bhat Cc: Stefano Babic --- board/ge/bx50v3/bx50v3.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/board/ge/bx50v3/bx50v3.c b/board/ge/bx50v3/bx50v3.c index 70c298d2d0..3cf51055d1 100644 --- a/board/ge/bx50v3/bx50v3.c +++ b/board/ge/bx50v3/bx50v3.c @@ -27,6 +27,10 @@ #include DECLARE_GLOBAL_DATA_PTR; +#define NC_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ + PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ + PAD_CTL_HYS) + #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ PAD_CTL_SRE_FAST | PAD_CTL_HYS) @@ -467,6 +471,12 @@ int board_eth_init(bd_t *bis) static iomux_v3_cfg_t const misc_pads[] = { MX6_PAD_KEY_ROW2__GPIO4_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL), + MX6_PAD_EIM_A25__GPIO5_IO02 | MUX_PAD_CTRL(NC_PAD_CTRL), + MX6_PAD_EIM_CS0__GPIO2_IO23 | MUX_PAD_CTRL(NC_PAD_CTRL), + MX6_PAD_EIM_CS1__GPIO2_IO24 | MUX_PAD_CTRL(NC_PAD_CTRL), + MX6_PAD_EIM_OE__GPIO2_IO25 | MUX_PAD_CTRL(NC_PAD_CTRL), + MX6_PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NC_PAD_CTRL), + MX6_PAD_GPIO_1__GPIO1_IO01 | MUX_PAD_CTRL(NC_PAD_CTRL), }; #define SUS_S3_OUT IMX_GPIO_NR(4, 11) #define WIFI_EN IMX_GPIO_NR(6, 14) -- 2.39.5