GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/arch/arm/mach-uniphier/sbc/sbc-ld4.c

@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2011-2015 Panasonic Corporation
+ * Copyright (C) 2015-2017 Socionext Inc.
+ */
+
+#include <linux/io.h>
+
+#include "../init.h"
+#include "sbc-regs.h"
+
+void uniphier_ld4_sbc_init(void)
+{
+	u32 tmp;
+
+	if (!uniphier_sbc_is_enabled())
+		return;
+
+	uniphier_sbc_init_savepin();
+
+	/* system bus output enable */
+	tmp = readl(PC0CTRL);
+	tmp &= 0xfffffcff;
+	writel(tmp, PC0CTRL);
+}