diff options
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/coreboot_tables.h | 19 | ||||
| -rw-r--r-- | arch/x86/include/asm/itss.h (renamed from arch/x86/include/asm/arch-apollolake/itss.h) | 2 |
2 files changed, 21 insertions, 0 deletions
diff --git a/arch/x86/include/asm/coreboot_tables.h b/arch/x86/include/asm/coreboot_tables.h index 2c54e24e02..61de0077d7 100644 --- a/arch/x86/include/asm/coreboot_tables.h +++ b/arch/x86/include/asm/coreboot_tables.h @@ -97,6 +97,25 @@ struct cb_serial { u32 type; u32 baseaddr; u32 baud; + u32 regwidth; + + /* + * Crystal or input frequency to the chip containing the UART. + * Provide the board specific details to allow the payload to + * initialize the chip containing the UART and make independent + * decisions as to which dividers to select and their values + * to eventually arrive at the desired console baud-rate. + */ + u32 input_hertz; + + /* + * UART PCI address: bus, device, function + * 1 << 31 - Valid bit, PCI UART in use + * Bus << 20 + * Device << 15 + * Function << 12 + */ + u32 uart_pci_addr; }; #define CB_TAG_CONSOLE 0x0010 diff --git a/arch/x86/include/asm/arch-apollolake/itss.h b/arch/x86/include/asm/itss.h index 1e29503974..c75d8fe8c2 100644 --- a/arch/x86/include/asm/arch-apollolake/itss.h +++ b/arch/x86/include/asm/itss.h @@ -1,5 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* + * Interrupt Timer Subsystem + * * Copyright (C) 2017 Intel Corporation. * Copyright 2019 Google LLC * |