diff options
Diffstat (limited to 'src/soc/intel/cannonlake')
| -rw-r--r-- | src/soc/intel/cannonlake/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/intel/cannonlake/uart_pch.c | 60 |
2 files changed, 61 insertions, 0 deletions
diff --git a/src/soc/intel/cannonlake/Makefile.inc b/src/soc/intel/cannonlake/Makefile.inc index 0490bf927b..0493c1b8ea 100644 --- a/src/soc/intel/cannonlake/Makefile.inc +++ b/src/soc/intel/cannonlake/Makefile.inc @@ -37,6 +37,7 @@ ramstage-$(CONFIG_PLATFORM_USES_FSP2_0) += reset.c ramstage-y += spi.c ramstage-y += systemagent.c ramstage-$(CONFIG_UART_DEBUG) += uart.c +ramstage-$(CONFIG_UART_DEBUG) += uart_pch.c ramstage-y += vr_config.c postcar-y += memmap.c diff --git a/src/soc/intel/cannonlake/uart_pch.c b/src/soc/intel/cannonlake/uart_pch.c new file mode 100644 index 0000000000..42c7a04086 --- /dev/null +++ b/src/soc/intel/cannonlake/uart_pch.c @@ -0,0 +1,60 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Google Inc. + * Copyright (C) 2017 Intel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <cbmem.h> +#include <device/pci.h> +#include <intelblocks/uart.h> +#include <soc/iomap.h> +#include <soc/nvs.h> +#include <soc/pci_devs.h> + +void pch_uart_read_resources(struct device *dev) +{ + pci_dev_read_resources(dev); + + /* Set the configured UART base address for the debug port */ + if (IS_ENABLED(CONFIG_UART_DEBUG) && uart_is_debug_controller(dev)) { + struct resource *res = find_resource(dev, PCI_BASE_ADDRESS_0); + /* Need to set the base and size for the resource allocator. */ + res->base = UART_BASE_0_ADDR(CONFIG_UART_FOR_CONSOLE); + res->size = UART_DEBUG_BASE_0_SIZE; + res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | + IORESOURCE_FIXED; + } +} + +bool pch_uart_init_debug_controller_on_resume(void) +{ + global_nvs_t *gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS); + + if (gnvs) + return !!gnvs->uior; + + return false; +} + +device_t pch_uart_get_debug_controller(void) +{ + switch (CONFIG_UART_FOR_CONSOLE) { + case 0: + return PCH_DEV_UART0; + case 1: + return PCH_DEV_UART1; + case 2: + default: + return PCH_DEV_UART2; + } +} |