nrhw20: preparations for GPIO, I2C
This commit is contained in:
Rene Straub
parent
8c55f6fe9c
commit
4ebdf0876f
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@ -46,6 +46,25 @@
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DECLARE_GLOBAL_DATA_PTR;
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/* GPIO that controls power to DDR on EVM-SK */
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#define GPIO_TO_PIN(bank, gpio) (32 * (bank) + (gpio))
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#ifdef NRHW20_ON_HW16_MODE
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#define NETBIRD_GPIO_RST_PHY_N GPIO_TO_PIN(0, 16)
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#define NETBIRD_GPIO_PWR_GSM GPIO_TO_PIN(1, 21)
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#define NETBIRD_GPIO_SUPPLY_GSM GPIO_TO_PIN(0, 31)
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#define NETBIRD_GPIO_RST_GSM GPIO_TO_PIN(1, 25)
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#define NETBIRD_GPIO_WLAN_EN GPIO_TO_PIN(3, 10)
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#define NETBIRD_GPIO_BT_EN GPIO_TO_PIN(3, 4)
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#define NETBIRD_GPIO_EN_GPS_ANT GPIO_TO_PIN(2, 24)
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#define NETBIRD_GPIO_LED_A GPIO_TO_PIN(1, 14)
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#define NETBIRD_GPIO_LED_B GPIO_TO_PIN(1, 15)
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#define NETBIRD_GPIO_RESET_BUTTON GPIO_TO_PIN(0, 2)
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#define NETBIRD_GPIO_USB_PWR_EN GPIO_TO_PIN(1, 27)
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#define NETBIRD_GPIO_USB_PWR_EN_2 GPIO_TO_PIN(2, 4) // On new version this gpio is used
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#else
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/*
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* NRHW 20 GPIOs
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*
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@ -76,32 +95,39 @@ DECLARE_GLOBAL_DATA_PTR;
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* GPIO3_21: RST_HUB~ (USB)
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*/
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/* GPIO that controls power to DDR on EVM-SK */
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#define GPIO_TO_PIN(bank, gpio) (32 * (bank) + (gpio))
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#define NETBIRD_GPIO_RESET_BUTTON GPIO_TO_PIN(3, 0) /* TODO: From PMIC */
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#define NETBIRD_GPIO_RST_PHY_N GPIO_TO_PIN(0, 16)
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#define NETBIRD_GPIO_PWR_GSM GPIO_TO_PIN(1, 21)
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#define NETBIRD_GPIO_SUPPLY_GSM GPIO_TO_PIN(0, 31)
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#define NETBIRD_GPIO_RST_GSM GPIO_TO_PIN(1, 25)
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#define NETBIRD_GPIO_WLAN_EN GPIO_TO_PIN(3, 10)
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#define NETBIRD_GPIO_BT_EN GPIO_TO_PIN(3, 4)
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#define NETBIRD_GPIO_EN_GPS_ANT GPIO_TO_PIN(2, 24)
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#define NETBIRD_GPIO_LED_A GPIO_TO_PIN(1, 14)
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#define NETBIRD_GPIO_LED_B GPIO_TO_PIN(1, 15)
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#define NETBIRD_GPIO_RESET_BUTTON GPIO_TO_PIN(0, 2)
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#define NETBIRD_GPIO_USB_PWR_EN GPIO_TO_PIN(1, 27)
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#define NETBIRD_GPIO_USB_PWR_EN_2 GPIO_TO_PIN(2, 4) // On new version this gpio is used
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#define NETBIRD_GPIO_RST_PHY_N GPIO_TO_PIN(0, 16)
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#define NETBIRD_GPIO_RST_USB_HUB_N GPIO_TO_PIN(3, 21)
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#define DDR3_CLOCK_FREQUENCY (400)
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#define NETBIRD_GPIO_RST_GNSS GPIO_TO_PIN(0, 2)
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#define NETBIRD_GPIO_RST_PCI GPIO_TO_PIN(3, 10)
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#define NETBIRD_GPIO_RST_GSM GPIO_TO_PIN(1, 25)
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#define NETBIRD_GPIO_PWR_GSM GPIO_TO_PIN(1, 21)
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#define NETBIRD_GPIO_WAKE_GSM GPIO_TO_PIN(0, 31)
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#define NETBIRD_GPIO_SIM_SEL GPIO_TO_PIN(3, 17)
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#define NETBIRD_GPIO_WLAN_EN GPIO_TO_PIN(1, 26)
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#define NETBIRD_GPIO_BT_EN GPIO_TO_PIN(1, 20)
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#define NETBIRD_GPIO_DIG_OUT GPIO_TO_PIN(1, 14)
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#define NETBIRD_GPIO_DIG_IN GPIO_TO_PIN(1, 15)
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#endif
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#define DDR3_CLOCK_FREQUENCY (400)
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#if defined(CONFIG_SPL_BUILD) || \
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(defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_DM_ETH))
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static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
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#endif
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#define BD_EEPROM_ADDR (0x50) /* CPU BD EEPROM (8kByte) is at 50 (A0) */
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#define BD_ADDRESS (0x0000) /* Board descriptor at beginning of EEPROM */
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#define PD_ADDRESS (0x0200) /* Product descriptor */
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#define BD_EEPROM_ADDR (0x50) /* CPU BD EEPROM (8kByte) is at 50 (A0) */
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#define BD_ADDRESS (0x0000) /* Board descriptor at beginning of EEPROM */
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#define PD_ADDRESS (0x0200) /* Product descriptor */
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#define PARTITION_ADDRESS (0x0600) /* Partition Table */
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static BD_Context bdctx[3]; /* The descriptor context */
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@ -275,7 +301,7 @@ void sdram_init(void)
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#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
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static void request_and_set_gpio(int gpio, char *name, int value)
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static void request_and_set_gpio(int gpio, const char *name, int value)
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{
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int ret;
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@ -285,9 +311,10 @@ static void request_and_set_gpio(int gpio, char *name, int value)
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return;
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}
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/* TODO: Set value here, remove later call gpio_set_value */
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ret = gpio_direction_output(gpio, 0);
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if (ret < 0) {
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printf("%s: Unable to set %s as output\n", __func__, name);
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printf("%s: Unable to set %s as output\n", __func__, name);
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goto err_free_gpio;
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}
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@ -299,12 +326,45 @@ err_free_gpio:
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gpio_free(gpio);
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}
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#define REQUEST_AND_SET_GPIO(N) request_and_set_gpio(N, #N, 1);
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#define REQUEST_AND_SET_GPIO(N) request_and_set_gpio(N, #N, 1);
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#define REQUEST_AND_CLEAR_GPIO(N) request_and_set_gpio(N, #N, 0);
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int check_reset_button(void)
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#ifndef NRHW20_ON_HW16_MODE
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static void request_input_gpio(int gpio, const char *name, int value)
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{
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int ret;
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ret = gpio_request(gpio, name);
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if (ret < 0) {
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printf("%s: Unable to request %s\n", __func__, name);
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return;
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}
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ret = gpio_direction_input(gpio);
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if (ret < 0) {
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printf("%s: Unable to set %s as input\n", __func__, name);
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goto err_free_gpio;
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}
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return;
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err_free_gpio:
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gpio_free(gpio);
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}
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#define REQUEST_INPUT_GPIO(N) request_input_gpio(N, #N, 0);
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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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#ifdef NRHW20_ON_HW16_MODE
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int counter = 0;
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int ret;
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@ -383,13 +443,18 @@ int check_reset_button(void)
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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: Rework to use USB Hub */
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static void enable_ext_usb(void)
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{
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#ifdef NRHW20_ON_HW16_MODE
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_USB_PWR_EN);
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_USB_PWR_EN_2);
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/* Disable LS2 */
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if (tps65218_reg_write(TPS65218_PROT_LEVEL_2, TPS65218_ENABLE2, 0x00, 0x04)) {
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puts ("tps65218_reg_write failure (LS2 enable)\n");
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@ -421,8 +486,33 @@ static void enable_ext_usb(void)
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if (tps65218_reg_write(TPS65218_PROT_LEVEL_2, TPS65218_ENABLE2, 0x04, 0x04)) {
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puts ("tps65218_reg_write failure (LS2 enable)\n");
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};
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#else
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/* TODO: Rework to use USB Hub */
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#endif
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}
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/* TODO: I2C Bus Handling */
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/*
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* Bus 0: PMIC
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* Bus 2: System
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*/
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void foo(void)
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{
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int old_bus;
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/* int ret; */
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old_bus = i2c_get_bus_num();
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i2c_set_bus_num(2);
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i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
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/* ret = i2c_read(0x53, 0, 1, (unsigned char *)spd_params, 256); */
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i2c_set_bus_num(old_bus);
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}
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/*
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* Basic board specific setup. Pinmux has been handled already.
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*/
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@ -433,34 +523,79 @@ int board_init(void)
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#endif
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gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
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#if defined(CONFIG_NOR) || defined(CONFIG_NAND)
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gpmc_init();
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#endif
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/* Remove power, and make sure reset is set once */
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#ifdef NRHW20_ON_HW16_MODE
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_LED_A);
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REQUEST_AND_SET_GPIO(NETBIRD_GPIO_LED_B);
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#else
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/* TODO: Control via PMIC GPIO10 (Red), 11 (Green) */
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#endif
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/* Keep unused subsystems in reset */
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_WLAN_EN);
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_BT_EN);
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#ifndef NRHW20_ON_HW16_MODE
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_RST_GNSS);
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_RST_PCI);
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_DIG_OUT);
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#endif
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/* Enable Ethernet and USB subsystem */
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#ifdef NRHW20_ON_HW16_MODE
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REQUEST_AND_SET_GPIO(NETBIRD_GPIO_RST_PHY_N);
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#else
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_RST_PHY_N);
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mdelay(1);
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/* OMAP3 does not feature open drain pins, thus configure as input */
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gpio_direction_input(NETBIRD_GPIO_RST_PHY_N);
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/* When thy Ethernet switch senses reset, it drives reset for 8..14ms
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* Wait longer than this time to avoid IO congestion later on.
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*/
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mdelay(20);
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_RST_USB_HUB_N);
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/* Minimum Reset Pulse = 1us */
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mdelay(1);
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gpio_set_value(NETBIRD_GPIO_RST_USB_HUB_N, 1);
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#endif
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/* Remove GSM power, and make sure reset is set once */
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#ifdef NRHW20_ON_HW16_MODE
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_SUPPLY_GSM);
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#else
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/* TODO: Control via PMIC GPIO7 */
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#endif
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REQUEST_AND_SET_GPIO(NETBIRD_GPIO_RST_GSM);
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_PWR_GSM);
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mdelay(20);
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/* Enable gsm supply */
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/* Enable GSM supply */
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#ifdef NRHW20_ON_HW16_MODE
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gpio_set_value(NETBIRD_GPIO_SUPPLY_GSM, 1);
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#else
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/* TODO: Control via PMIC GPIO7 */
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#endif
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mdelay(20);
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/* Take modem out of reset, we have to wait 300ms afterwards */
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gpio_set_value(NETBIRD_GPIO_RST_GSM, 0);
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mdelay(300);
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/* Do power up sequence, this modem has a special power up sequence
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* where we have to pull PWR for > 1s but < 7s (see manual) */
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gpio_set_value(NETBIRD_GPIO_PWR_GSM, 1);
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/* TODO: Defer to late_init, so that we don't block boot */
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mdelay(1200);
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gpio_set_value(NETBIRD_GPIO_PWR_GSM, 0);
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_LED_A);
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REQUEST_AND_SET_GPIO(NETBIRD_GPIO_LED_B);
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REQUEST_AND_SET_GPIO(NETBIRD_GPIO_RST_PHY_N);
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_WLAN_EN);
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REQUEST_AND_CLEAR_GPIO(NETBIRD_GPIO_BT_EN);
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/* There are two funcions on the same mux mode for MMC2_DAT7 we want
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/* TODO: Move to pinmux? Required??? RMII2 not used! */
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/* There are two functions on the same mux mode for MMC2_DAT7 we want
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* to use RMII2_CRS_DV so we need to set SMA2 Register to 1
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* See SPRS717J site 49 (10)*/
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#define SMA2_REGISTER (CTRL_BASE + 0x1320)
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@ -468,12 +603,13 @@ int board_init(void)
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enable_ext_usb();
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printf("OSC: %lu MHz\n", get_osclk()/1000000);
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printf("OSC: %lu MHz\n", get_osclk()/1000000);
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return 0;
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}
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/* TODO: Can most likely be removed. */
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#ifdef NRHW20_ON_HW16_MODE
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/* Enable the ecap2 pwm see siemens/pxm2 */
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static int enable_pwm(void)
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@ -527,6 +663,8 @@ static void enable_wlan_clock(void)
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enable_pwm();
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}
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#endif
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#if !defined(CONFIG_SPL_BUILD)
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void set_console(void)
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@ -568,6 +706,7 @@ static void set_devicetree_name(void)
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/* add hardware versions to environment */
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if (bd_get_devicetree(devicetreename, sizeof(devicetreename)) != 0) {
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printf("Devicetree name not found, use legacy name\n");
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/* TODO: Rename */
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strcpy(devicetreename, "am335x-nbhw16-prod2.dtb");
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}
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@ -578,11 +717,12 @@ static void get_hw_version(void)
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{
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int hw_ver, hw_rev;
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char hw_versions[16];
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char new_env[256];
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char new_env[256]; /* TODO: Check size, have also seen 512 */
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/* add hardware versions to environment */
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bd_get_hw_version(&hw_ver, &hw_rev);
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printf("HW20: V%d.%d\n", hw_ver, hw_rev);
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printf("HW20: V%d.%d\n", hw_ver, hw_rev);
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snprintf(hw_versions, sizeof(hw_versions), "CP=%d.%d", hw_ver, hw_rev);
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snprintf(new_env, sizeof(new_env), "setenv bootargs $bootargs %s", hw_versions);
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setenv("add_version_bootargs", new_env);
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@ -590,9 +730,10 @@ static void get_hw_version(void)
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static void check_fct(void)
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{
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/* TODO: Documentation ! */
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// EEPROM at 0x51 means FCT test station
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/* Check whether an I2C device (EEPROM) is present at address 0xA2/0x51
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* In this case we are connected to the factory test station.
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* Clear the bootcmd, so that test system can easily connect.
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*/
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/* If probe fails we are sure no eeprom is connected */
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if (i2c_probe(0x51) == 0) {
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@ -726,13 +867,14 @@ int board_late_init(void)
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set_board_info_env(name);
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#endif
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#ifdef NRHW20_ON_HW16_MODE
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/* TODO: Remove, Clock should be provided by PMIC */
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enable_wlan_clock();
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#endif
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#if !defined(CONFIG_SPL_BUILD)
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shield_init();
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check_fct();
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#endif
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return 0;
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@ -800,6 +942,7 @@ static void set_mac_address(int index, uchar mac[6])
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}
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}
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/* TODO: Update doc */
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/*
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* This function will:
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* Read the eFuse for MAC addresses, and set ethaddr/eth1addr/usbnet_devaddr
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@ -825,6 +968,7 @@ int board_eth_init(bd_t *bis)
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bd_get_mac(0, mac_addr0, sizeof(mac_addr0));
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set_mac_address(0, mac_addr0);
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/* TODO: Check 2x Ethernet? */
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writel(RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE, &cdev->miisel);
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cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_RMII;
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cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_RMII;
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@ -1,8 +1,8 @@
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/*
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* am335x_nrhw20.h
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*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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* Copyright (C) 2018 NetModule AG - http://www.netmodule.com/
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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@ -26,7 +26,6 @@
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#define NRHW20_ON_HW16_MODE
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#include <configs/ti_am335x_common.h>
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#undef CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC
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@ -115,16 +114,20 @@
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#define CONFIG_CONS_INDEX 1 /* Use UART1 as standard UART (1 = UART0) */
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/* TODO: Check whether CONFIG_CONS_INDEX can be removed --> menuconfig */
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#define CONFIG_I2C
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#define CONFIG_I2C_MULTI_BUS
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#define CONFIG_CMD_EEPROM
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#define CONFIG_SYS_I2C_EEPROM_ADDR 0x50 /* Main EEPROM */
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#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 2
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#define CONFIG_SYS_I2C_SPEED 100000
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||||
#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 4
|
||||
#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 50
|
||||
#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 50 /* TODO: Can this be reduced to 20ms */
|
||||
|
||||
#define CONFIG_ENV_IS_IN_EEPROM
|
||||
#define CONFIG_ENV_OFFSET 0x1000 /* The Environment is located at 4k */
|
||||
#define CONFIG_ENV_SIZE 0x800 /* The maximum size is 2k */
|
||||
#define CONFIG_ENV_OFFSET 0x1000 /* The Environment is located at 4k */
|
||||
#define CONFIG_ENV_SIZE 0x800 /* The maximum size is 2k */
|
||||
#undef CONFIG_SPL_ENV_SUPPORT
|
||||
#undef CONFIG_SPL_NAND_SUPPORT
|
||||
#undef CONFIG_SPL_ONENAND_SUPPORT
|
||||
|
|
@ -162,6 +165,7 @@
|
|||
#define CONFIG_ANDROID_BOOT_IMAGE
|
||||
#define CONFIG_FASTBOOT_BUF_ADDR CONFIG_SYS_LOAD_ADDR
|
||||
#define CONFIG_FASTBOOT_BUF_SIZE 0x07000000
|
||||
/* TODO: Check */
|
||||
|
||||
/* To support eMMC booting */
|
||||
#define CONFIG_STORAGE_EMMC
|
||||
|
|
@ -199,6 +203,7 @@
|
|||
|
||||
/* USB Device Firmware Update support */
|
||||
#ifndef CONFIG_SPL_BUILD
|
||||
/* TODO: Check -> Remove */
|
||||
#define CONFIG_USB_FUNCTION_DFU
|
||||
#define CONFIG_DFU_MMC
|
||||
#define DFU_ALT_INFO_MMC \
|
||||
|
|
|
|||
Loading…
Reference in New Issue