From e80f9e1a37c4136299c6ea42da7c6b2fdb1eab2d Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Tue, 2 Jan 2018 09:32:09 +0800 Subject: [PATCH] imx: mx6sxsabresd: config wdog pinmux Because kernel set WDOG_B mux before pad with the common pinctrl framwork now and wdog reset will be triggered once set WDOG_B mux with default pad setting, we set pad setting here to workaround this. Since imx_iomux_v3_setup_pad also set mux before pad setting, we set as GPIO mux firstly here to workaround it. Signed-off-by: Peng Fan Cc: Stefano Babic Cc: Fabio Estevam --- board/freescale/mx6sxsabresd/mx6sxsabresd.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/board/freescale/mx6sxsabresd/mx6sxsabresd.c b/board/freescale/mx6sxsabresd/mx6sxsabresd.c index 8940f37..34371ad 100644 --- a/board/freescale/mx6sxsabresd/mx6sxsabresd.c +++ b/board/freescale/mx6sxsabresd/mx6sxsabresd.c @@ -50,6 +50,9 @@ DECLARE_GLOBAL_DATA_PTR; #define LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm) +#define WDOG_PAD_CTRL (PAD_CTL_PUE | PAD_CTL_PKE | PAD_CTL_SPEED_MED | \ + PAD_CTL_DSE_40ohm) + int dram_init(void) { gd->ram_size = imx_ddr_size(); @@ -62,6 +65,9 @@ static iomux_v3_cfg_t const uart1_pads[] = { MX6_PAD_GPIO1_IO05__UART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL), }; +static iomux_v3_cfg_t const wdog_b_pad = { + MX6_PAD_GPIO1_IO13__GPIO1_IO_13 | MUX_PAD_CTRL(WDOG_PAD_CTRL), +}; static iomux_v3_cfg_t const fec1_pads[] = { MX6_PAD_ENET1_MDC__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_ENET1_MDIO__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), @@ -295,6 +301,15 @@ int board_init(void) /* Address of boot parameters */ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + /* + * Because kernel set WDOG_B mux before pad with the common pinctrl + * framwork now and wdog reset will be triggered once set WDOG_B mux + * with default pad setting, we set pad setting here to workaround this. + * Since imx_iomux_v3_setup_pad also set mux before pad setting, we set + * as GPIO mux firstly here to workaround it. + */ + imx_iomux_v3_setup_pad(wdog_b_pad); + /* Active high for ncp692 */ gpio_request(IMX_GPIO_NR(4, 16), "ncp692_en"); gpio_direction_output(IMX_GPIO_NR(4, 16), 1); -- 2.7.4