nrhw20: add reset button fucntionality
This commit is contained in:
Rene Straub
parent
c94710b8c3
commit
f735627eca
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@ -397,101 +397,11 @@ err_free_gpio:
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#endif
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#if !defined(CONFIG_SPL_BUILD)
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/* TODO: Redesign to use PMIC input */
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static int check_reset_button(void)
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{
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#if 0
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int counter = 0;
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int ret;
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ret = gpio_request(NETBIRD_GPIO_RESET_BUTTON, "reset button");
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if (ret < 0) {
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printf("Unable to request reset button gpio\n");
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return -1;
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}
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ret = gpio_direction_input(NETBIRD_GPIO_RESET_BUTTON);
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if (ret < 0) {
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printf("Unable to set reset button as input\n");
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return -1;
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}
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/* Check if reset button is pressed for at least 2 seconds ≃ ~5s */
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do {
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if (gpio_get_value(NETBIRD_GPIO_RESET_BUTTON) != 0) break;
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udelay(100000); /* 100ms */
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counter++;
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if (counter==20) {/* Indicate factory reset threshold */
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gpio_set_value(NETBIRD_GPIO_LED_A, 0);
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gpio_set_value(NETBIRD_GPIO_LED_B, 0);
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udelay(400000); /* 400ms */
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/* let LED blink up once */
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gpio_set_value(NETBIRD_GPIO_LED_A, 1);
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gpio_set_value(NETBIRD_GPIO_LED_B, 1);
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udelay(400000); /* 400ms */
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gpio_set_value(NETBIRD_GPIO_LED_A, 0);
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gpio_set_value(NETBIRD_GPIO_LED_B, 0);
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} else if (counter==120) { /* Indicate recovery boot threshold */
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/* let LED blink up twice */
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gpio_set_value(NETBIRD_GPIO_LED_A, 1);
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gpio_set_value(NETBIRD_GPIO_LED_B, 1);
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udelay(400000); /* 400ms */
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gpio_set_value(NETBIRD_GPIO_LED_A, 0);
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gpio_set_value(NETBIRD_GPIO_LED_B, 0);
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udelay(400000); /* 400ms */
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gpio_set_value(NETBIRD_GPIO_LED_A, 1);
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gpio_set_value(NETBIRD_GPIO_LED_B, 1);
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udelay(400000); /* 400ms */
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gpio_set_value(NETBIRD_GPIO_LED_A, 0);
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gpio_set_value(NETBIRD_GPIO_LED_B, 0);
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}
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} while (counter<120);
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if (counter < 20) return 0; /* Don't do anything for duration < 2s */
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if (counter < 120) /* Do factory reset for duration between ~5s and ~15s */
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{
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char new_bootargs[512];
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char *bootargs = getenv("bootargs");
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if (bootargs==0) bootargs="";
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printf("Do factory reset during boot...\n");
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strncpy(new_bootargs, bootargs, sizeof(new_bootargs));
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strncat(new_bootargs, " factory-reset", sizeof(new_bootargs));
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setenv("bootargs", new_bootargs);
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printf("bootargs = %s\n", new_bootargs);
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return 1;
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} else { /* Boot into recovery for duration > 15s */
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/* set consoledev to external port */
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setenv("consoledev", "ttyS1");
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printf("Booting recovery image...\n");
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/* Set bootcmd to run recovery */
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setenv("bootcmd", "run recovery");
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return 0;
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}
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return 0;
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#else
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return 0;
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#endif
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}
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#endif
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/* TODO: Create DA9063 Accessor Module */
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#define CONFIG_PMIC_I2C_BUS 0
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#define CONFIG_PMIC_I2C_ADDR 0x58 /* Pages 0 and 1, Pages 2 and 3 -> 0x59 */
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#define PMIC_REG_STATUS_A 0x01 /* Status of ON_KEY, WAKE, COMP1V2, DVC */
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#define PMIC_REG_GPIO_MODE0_7 0x1D /* Control register for GPIOs 0..7 */
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#define PMIC_REG_GPIO_MODE8_15 0x1E /* Control register for GPIOs 8..15 */
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@ -877,6 +787,94 @@ static void shield_init(void)
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}
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#endif
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#if !defined(CONFIG_SPL_BUILD)
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static bool get_button_state(void)
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{
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u8 state = 0x00;
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(void)da9093_get_reg(PMIC_REG_STATUS_A, &state);
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return (state & 0x01) == 0x01;
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}
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static void blink_led(void)
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{
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const int pulse_width = 400*1000; /* 400ms */
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/* Assumes green status LED is on */
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udelay(pulse_width);
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set_status_led(0, 0);
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udelay(pulse_width);
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set_status_led(0, 1);
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}
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static int check_reset_button(void)
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{
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int counter = 0;
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/* Check how long button is pressed */
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do {
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if (!get_button_state())
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break;
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udelay(100*1000); /* 100ms */
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counter += 100;
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if (counter == 2000) {
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/* Indicate factory reset threshold */
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blink_led();
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}
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else if (counter == 12000) {
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/* Indicate recovery boot threshold */
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blink_led();
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blink_led();
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}
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} while (counter < 12000);
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/* Don't do anything for duration < 2s */
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if (counter < 2000)
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return 0;
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/* Do factory reset for duration between ~5s and ~15s */
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if (counter < 12000)
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{
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char new_bootargs[512];
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char *bootargs = getenv("bootargs");
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if (bootargs == 0) bootargs="";
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printf("Do factory reset during boot...\n");
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strncpy(new_bootargs, bootargs, sizeof(new_bootargs));
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strncat(new_bootargs, " factory-reset", sizeof(new_bootargs));
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setenv("bootargs", new_bootargs);
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printf("bootargs = %s\n", new_bootargs);
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return 1;
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}
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/* Boot into recovery for duration > 15s */
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else
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{
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/* set consoledev to external port */
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/* setenv("consoledev", "ttyS1"); */
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printf("Booting recovery image...\n");
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/* Set bootcmd to run recovery */
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setenv("bootcmd", "run recovery");
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return 0;
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}
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return 0;
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}
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#endif
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int board_late_init(void)
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{
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#if !defined(CONFIG_SPL_BUILD)
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