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imx: ventana: gw5904/gw5909: disable RS485

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The GW5904/GW5909 have a SP33E multi-protocol serial transceiver which we
want to configure to RS232 by default (by de-asserting RS485_EN)

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
This commit is contained in:
Tim Harvey 2019-02-04 13:10:59 -08:00 • committed by Stefano Babic
parent 9cdb1c6e99
commit ad2efa3a28
1 changed files with 2 additions and 0 deletions
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2
board/gateworks/gw_ventana/common.c
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@ -1429,6 +1429,8 @@ void setup_iomux_gpio(int board, struct ventana_board_info *info)
break;
case GW5909:
case GW5904:
gpio_request(IMX_GPIO_NR(4, 23), "rs485_en");
gpio_direction_output(IMX_GPIO_NR(4, 23), 0);
gpio_request(IMX_GPIO_NR(5, 11), "skt1_wdis#");
gpio_direction_output(IMX_GPIO_NR(5, 11), 1);
gpio_request(IMX_GPIO_NR(5, 12), "skt1_rst#");