sku.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <baseboard/variants.h>
#include <gpio.h>
#include <variant/sku.h>
 
uint32_t variant_board_sku(void)
{
#if ENV_ROMSTAGE
        uint32_t sku_id = SKU_UNKNOWN;
#else
        static uint32_t sku_id = SKU_UNKNOWN;
 
        if (sku_id != SKU_UNKNOWN)
                return sku_id;
#endif
 
        /*
        *  Nautilus uses GPP_B20 to determine SKU
        *  0 - Wifi SKU
        *  1 - LTE SKU
        */
        gpio_input_pulldown(GPP_B20);
        if (!gpio_get(GPP_B20))
                sku_id = SKU_0_NAUTILUS;
        else
                sku_id = SKU_1_NAUTILUS_LTE;
 
        return sku_id;
}