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// SPDX-License-Identifier: GPL-2.0+
#include <asm/arch/imx8mq_pins.h>
#include <asm-generic/gpio.h>
#include <asm/mach-imx/gpio.h>
/*
* BRD_REV1 BRD_REV0
* 0 0 n/a
* 0 1 n/a
* 1 0 2GB LPDDR4
* 1 1 4GB LPDDR4
*/
#define BRD_REV0 IMX_GPIO_NR(5, 0)
#define BRD_REV1 IMX_GPIO_NR(5, 1)
static iomux_v3_cfg_t const brdrev_pads[] = {
IMX8MQ_PAD_SAI3_TXC__GPIO5_IO0 | MUX_PAD_CTRL(PAD_CTL_PUE),
IMX8MQ_PAD_SAI3_TXD__GPIO5_IO1 | MUX_PAD_CTRL(PAD_CTL_PUE),
IMX8MQ_PAD_SAI3_MCLK__GPIO5_IO2 | MUX_PAD_CTRL(PAD_CTL_PUE),
};
int get_pitx_board_variant(void)
{
int variant = 0;
imx_iomux_v3_setup_multiple_pads(brdrev_pads, ARRAY_SIZE(brdrev_pads));
gpio_request(BRD_REV0, "BRD_REV0");
gpio_direction_input(BRD_REV0);
gpio_request(BRD_REV1, "BRD_REV1");
gpio_direction_input(BRD_REV1);
variant |= !!gpio_get_value(BRD_REV0) << 0;
variant |= !!gpio_get_value(BRD_REV1) << 1;
return variant;
}
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