mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 14:23:00 +00:00
16c7369ede
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+
|
|
#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;
|
|
}
|