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32 lines
695 B
C
32 lines
695 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <aic_common.h>
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#include <aic_core.h>
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#include <aic_hal.h>
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#include <upg_detect.h>
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s32 upg_boot_pin_check(void)
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{
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unsigned int pin, g, p, value, cnt, sts;
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hal_clk_enable_deassertrst_iter(CLK_GPIO);
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pin = hal_gpio_name2pin(AIC_BOOTLOADER_UPGBOOT_PIN);
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g = GPIO_GROUP(pin);
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p = GPIO_GROUP_PIN(pin);
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hal_gpio_set_func(g, p, 1);
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hal_gpio_set_bias_pull(g, p, PIN_PULL_UP);
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hal_gpio_direction_input(g, p);
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sts = 0;
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for (cnt = 4; cnt > 0; cnt--) {
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hal_gpio_get_value(g, p, &value);
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sts += value;
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}
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if (sts == 0)
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return UPG_DETECT_REASON_PIN;
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return 0;
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}
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