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imx: mx6sxsabresd: config wdog pinmux

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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 <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
This commit is contained in:
Peng Fan 2018-01-02 09:32:09 +08:00 • committed by Stefano Babic
parent 5dfc9d3766
commit e80f9e1a37
1 changed files with 15 additions and 0 deletions
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15
board/freescale/mx6sxsabresd/mx6sxsabresd.c
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@ -50,6 +50,9 @@ DECLARE_GLOBAL_DATA_PTR;
#define LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ #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) 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) int dram_init(void)
{ {
gd->ram_size = imx_ddr_size(); 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), 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[] = { static iomux_v3_cfg_t const fec1_pads[] = {
MX6_PAD_ENET1_MDC__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), MX6_PAD_ENET1_MDC__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
MX6_PAD_ENET1_MDIO__ENET1_MDIO | 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 */ /* Address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 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 */ /* Active high for ncp692 */
gpio_request(IMX_GPIO_NR(4, 16), "ncp692_en"); gpio_request(IMX_GPIO_NR(4, 16), "ncp692_en");
gpio_direction_output(IMX_GPIO_NR(4, 16), 1); gpio_direction_output(IMX_GPIO_NR(4, 16), 1);