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authorAndrey Petrov <andrey.petrov@intel.com>2016-02-10 17:47:03 -0800
committerAaron Durbin <adurbin@chromium.org>2016-02-11 21:16:45 +0100
commit87fb1a6cdbb58d5031f0dcf9b8ddf200df70a068 (patch)
tree0726805fa683a33d4508ddb731e1cad33423620e /src/mainboard
parent57799dcdd1d80e8f1c8f5cd602796c34522bbb15 (diff)
downloadcoreboot-87fb1a6cdbb58d5031f0dcf9b8ddf200df70a068.tar.xz
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 <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/13677 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/mainboard')
-rw-r--r--src/mainboard/intel/apollolake_rvp/Makefile.inc2
-rw-r--r--src/mainboard/intel/apollolake_rvp/bootblock.c30
2 files changed, 31 insertions, 1 deletions
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 <andrey.petrov@intel.com> 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 <bootblock_common.h>
+#include <console/console.h>
+#include <soc/gpio.h>
+#include <soc/gpio_defs.h>
+#include <soc/uart.h>
+
+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();
+ }
+}