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

source/bootloader/u-boot-2020.01/arch/arm/mach-uniphier/clk/clk-ld20.c

@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2017 Socionext Inc.
+ */
+
+#include <linux/bitops.h>
+#include <linux/io.h>
+
+#include "../init.h"
+#include "../sc64-regs.h"
+
+#define SDCTRL_EMMC_HW_RESET	0x59810280
+
+void uniphier_ld20_clk_init(void)
+{
+	u32 tmp;
+
+	tmp = readl(sc_base + SC_RSTCTRL6);
+	tmp |= BIT(8);			/* Mali */
+	writel(tmp, sc_base + SC_RSTCTRL6);
+
+	tmp = readl(sc_base + SC_CLKCTRL6);
+	tmp |= BIT(8);			/* Mali */
+	writel(tmp, sc_base + SC_CLKCTRL6);
+
+	/* TODO: use "mmc-pwrseq-emmc" */
+	writel(1, SDCTRL_EMMC_HW_RESET);
+}