1 files changed, 51 insertions, 0 deletions
diff --git a/roms/u-boot/board/sipeed/maix/maix.c b/roms/u-boot/board/sipeed/maix/maix.c
new file mode 100644
index 000000000..52e4fee2f
--- /dev/null
+++ b/roms/u-boot/board/sipeed/maix/maix.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019-20 Sean Anderson <seanga2@gmail.com>
+ */
+
+#include <common.h>
+#include <clk.h>
+#include <dm.h>
+#include <fdt_support.h>
+#include <asm/io.h>
+
+phys_size_t get_effective_memsize(void)
+{
+	return CONFIG_SYS_SDRAM_SIZE;
+}
+
+static int sram_init(void)
+{
+	int ret, i;
+	const char * const banks[] = { "sram0", "sram1", "aisram" };
+	ofnode memory;
+	struct clk clk;
+
+	/* Enable RAM clocks */
+	memory = ofnode_by_compatible(ofnode_null(), "kendryte,k210-sram");
+	if (ofnode_equal(memory, ofnode_null()))
+		return -ENOENT;
+
+	for (i = 0; i < ARRAY_SIZE(banks); i++) {
+		ret = clk_get_by_name_nodev(memory, banks[i], &clk);
+		if (ret)
+			continue;
+
+		ret = clk_enable(&clk);
+		clk_free(&clk);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+int board_early_init_f(void)
+{
+	return sram_init();
+}
+
+int board_init(void)
+{
+	return 0;
+}