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The Kontron pitx-imx8m is an NXP i.MX8MQ based board in the pITX form factor. Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
38 lines
994 B
C
38 lines
994 B
C
// SPDX-License-Identifier: GPL-2.0+
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#include <asm/arch/imx8mq_pins.h>
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#include <asm-generic/gpio.h>
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#include <asm/mach-imx/gpio.h>
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/*
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* BRD_REV1 BRD_REV0
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* 0 0 n/a
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* 0 1 n/a
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* 1 0 2GB LPDDR4
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* 1 1 4GB LPDDR4
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*/
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#define BRD_REV0 IMX_GPIO_NR(5, 0)
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#define BRD_REV1 IMX_GPIO_NR(5, 1)
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static iomux_v3_cfg_t const brdrev_pads[] = {
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IMX8MQ_PAD_SAI3_TXC__GPIO5_IO0 | MUX_PAD_CTRL(PAD_CTL_PUE),
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IMX8MQ_PAD_SAI3_TXD__GPIO5_IO1 | MUX_PAD_CTRL(PAD_CTL_PUE),
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IMX8MQ_PAD_SAI3_MCLK__GPIO5_IO2 | MUX_PAD_CTRL(PAD_CTL_PUE),
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};
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int get_pitx_board_variant(void)
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{
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int variant = 0;
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imx_iomux_v3_setup_multiple_pads(brdrev_pads, ARRAY_SIZE(brdrev_pads));
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gpio_request(BRD_REV0, "BRD_REV0");
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gpio_direction_input(BRD_REV0);
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gpio_request(BRD_REV1, "BRD_REV1");
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gpio_direction_input(BRD_REV1);
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variant |= !!gpio_get_value(BRD_REV0) << 0;
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variant |= !!gpio_get_value(BRD_REV1) << 1;
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return variant;
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}
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