From 87fb1a6cdbb58d5031f0dcf9b8ddf200df70a068 Mon Sep 17 00:00:00 2001 From: Andrey Petrov Date: Wed, 10 Feb 2016 17:47:03 -0800 Subject: soc/apollolake: Add early serial driver for BOOTBLOCK_CONSOLE Early UART driver is for bootblock and romstage. It is supposed to be used when BOOTBLOCK_CONSOLE is enabled. This also adds few configuration bits in bootblock requiered for serial to be set up. Change-Id: I15520d566f107797e68d618885d4379e73d0fa45 Signed-off-by: Andrey Petrov Reviewed-on: https://review.coreboot.org/13677 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin --- src/mainboard/intel/apollolake_rvp/Makefile.inc | 2 +- src/mainboard/intel/apollolake_rvp/bootblock.c | 30 +++++++++++++++++++++++++ 2 files changed, 31 insertions(+), 1 deletion(-) create mode 100644 src/mainboard/intel/apollolake_rvp/bootblock.c (limited to 'src/mainboard/intel/apollolake_rvp') diff --git a/src/mainboard/intel/apollolake_rvp/Makefile.inc b/src/mainboard/intel/apollolake_rvp/Makefile.inc index a48936e5da..8501868fbf 100644 --- a/src/mainboard/intel/apollolake_rvp/Makefile.inc +++ b/src/mainboard/intel/apollolake_rvp/Makefile.inc @@ -1 +1 @@ -# Nothing yet here +bootblock-y += bootblock.c diff --git a/src/mainboard/intel/apollolake_rvp/bootblock.c b/src/mainboard/intel/apollolake_rvp/bootblock.c new file mode 100644 index 0000000000..c1b7d411aa --- /dev/null +++ b/src/mainboard/intel/apollolake_rvp/bootblock.c @@ -0,0 +1,30 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2016 Intel Corp. + * (Written by Andrey Petrov for Intel Corp.) + * + * 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; either version 2 of the License, or + * (at your option) any later version. + */ + +#include +#include +#include +#include +#include + +static struct pad_config aplk_rvp_gpios[] = { + PAD_CFG_NF(GPIO_46, NATIVE, DEEP, NF1), /* UART2 RX*/ + PAD_CFG_NF(GPIO_47, NATIVE, DEEP, NF1) /* UART2 TX*/ +}; + +void bootblock_mainboard_early_init(void) +{ + if (IS_ENABLED(CONFIG_BOOTBLOCK_CONSOLE)) { + gpio_configure_pads(aplk_rvp_gpios, ARRAY_SIZE(aplk_rvp_gpios)); + lpss_console_uart_init(); + } +} -- cgit v1.2.3