diff options
| -rw-r--r-- | src/soc/intel/common/block/uart/uart.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/soc/intel/common/block/uart/uart.c b/src/soc/intel/common/block/uart/uart.c index 9d820ffd7e..82e5df401c 100644 --- a/src/soc/intel/common/block/uart/uart.c +++ b/src/soc/intel/common/block/uart/uart.c @@ -33,8 +33,11 @@ extern const struct uart_gpio_pad_config uart_gpio_pads[]; extern const int uart_max_index; -static void uart_lpss_init(uintptr_t baseaddr) +static void uart_lpss_init(struct device *dev, uintptr_t baseaddr) { + /* Ensure controller is in D0 state */ + lpss_set_power_state(dev, STATE_D0); + /* Take UART out of reset */ lpss_reset_release(baseaddr); @@ -81,7 +84,7 @@ void uart_common_init(struct device *device, uintptr_t baseaddr) /* Enable memory access and bus master */ pci_write_config32(dev, PCI_COMMAND, UART_PCI_ENABLE); - uart_lpss_init(baseaddr); + uart_lpss_init(device, baseaddr); } struct device *uart_get_device(void) @@ -224,7 +227,7 @@ static void uart_common_enable_resources(struct device *dev) base = pci_read_config32(dev, PCI_BASE_ADDRESS_0) & ~0xFFF; if (base) - uart_lpss_init(base); + uart_lpss_init(dev, base); } } |