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authorYou-Cheng Syu <youcheng@google.com>2019-01-23 19:54:05 +0800
committerPatrick Georgi <pgeorgi@google.com>2019-01-24 13:53:16 +0000
commit44e9c37f356f2832c079b1b8a5145dd7be77a37c (patch)
treecf6f6ce11ed6a259221bf16bcda8f09a78124d5f /src
parent514363541fd1f78cc786a0c1f8d5f047f3baebc7 (diff)
downloadcoreboot-44e9c37f356f2832c079b1b8a5145dd7be77a37c.tar.xz
mediatek/mt8183: Move some initialization into mt8183_early_init
MT8183 only allows booting from eMMC, so we have to do eMMC emulation from an external source, for example EC, which makes the size of bootblock very important. This CL adds a new function mt8183_early_init, which includes all initializations that should be done in early stages. All mainboards using MT8183 should manually call it in either bootblock or verstage. BRANCH=none BUG=b:120588396 TEST=manually boot into kernel Change-Id: I35d7ab875395da913b967ae1f7b72359be3e744a Signed-off-by: You-Cheng Syu <youcheng@google.com> Reviewed-on: https://review.coreboot.org/c/31024 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/google/kukui/bootblock.c3
-rw-r--r--src/soc/mediatek/mt8183/Makefile.inc2
-rw-r--r--src/soc/mediatek/mt8183/bootblock.c2
-rw-r--r--src/soc/mediatek/mt8183/include/soc/mt8183.h23
-rw-r--r--src/soc/mediatek/mt8183/mt8183.c22
5 files changed, 50 insertions, 2 deletions
diff --git a/src/mainboard/google/kukui/bootblock.c b/src/mainboard/google/kukui/bootblock.c
index 07285882d7..ab537d401a 100644
--- a/src/mainboard/google/kukui/bootblock.c
+++ b/src/mainboard/google/kukui/bootblock.c
@@ -16,6 +16,7 @@
#include <bootblock_common.h>
#include <gpio.h>
#include <soc/gpio.h>
+#include <soc/mt8183.h>
#include <soc/spi.h>
#include "gpio.h"
@@ -25,6 +26,8 @@
void bootblock_mainboard_init(void)
{
+ mt8183_early_init();
+
setup_chromeos_gpios();
/* Turn on real eMMC. */
diff --git a/src/soc/mediatek/mt8183/Makefile.inc b/src/soc/mediatek/mt8183/Makefile.inc
index 9aa1733f38..f24fdccb0b 100644
--- a/src/soc/mediatek/mt8183/Makefile.inc
+++ b/src/soc/mediatek/mt8183/Makefile.inc
@@ -5,6 +5,7 @@ bootblock-y += bootblock.c
bootblock-y += ../common/gpio.c gpio.c
bootblock-y += ../common/pll.c pll.c
bootblock-$(CONFIG_SPI_FLASH) += ../common/spi.c spi.c
+bootblock-y += mt8183.c
bootblock-y += ../common/timer.c
bootblock-y += ../common/uart.c
bootblock-y += ../common/wdt.c
@@ -16,6 +17,7 @@ decompressor-y += ../common/timer.c
verstage-y += auxadc.c
verstage-y += ../common/gpio.c gpio.c
verstage-$(CONFIG_SPI_FLASH) += ../common/spi.c spi.c
+verstage-y += mt8183.c
verstage-y += ../common/timer.c
verstage-y += ../common/uart.c
verstage-y += ../common/wdt.c
diff --git a/src/soc/mediatek/mt8183/bootblock.c b/src/soc/mediatek/mt8183/bootblock.c
index d7d5c2dda4..e4c331e524 100644
--- a/src/soc/mediatek/mt8183/bootblock.c
+++ b/src/soc/mediatek/mt8183/bootblock.c
@@ -15,10 +15,8 @@
#include <bootblock_common.h>
#include <soc/pll.h>
-#include <soc/wdt.h>
void bootblock_soc_init(void)
{
mt_pll_init();
- mtk_wdt_init();
}
diff --git a/src/soc/mediatek/mt8183/include/soc/mt8183.h b/src/soc/mediatek/mt8183/include/soc/mt8183.h
new file mode 100644
index 0000000000..5591ffd5cc
--- /dev/null
+++ b/src/soc/mediatek/mt8183/include/soc/mt8183.h
@@ -0,0 +1,23 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2019 Google Inc.
+ *
+ * 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.
+ */
+
+#ifndef __SOC_MEDIATEK_MT8183_H__
+#define __SOC_MEDIATEK_MT8183_H__
+
+/* Mainboards should manually call this function in early stages (bootblock or
+ * verstage). */
+void mt8183_early_init(void);
+
+#endif /* __SOC_MEDIATEK_MT8183_H__ */
diff --git a/src/soc/mediatek/mt8183/mt8183.c b/src/soc/mediatek/mt8183/mt8183.c
new file mode 100644
index 0000000000..c4419803da
--- /dev/null
+++ b/src/soc/mediatek/mt8183/mt8183.c
@@ -0,0 +1,22 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2019 Google Inc.
+ *
+ * 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 <soc/mt8183.h>
+#include <soc/wdt.h>
+
+void mt8183_early_init(void)
+{
+ mtk_wdt_init();
+}