1 files changed, 37 insertions, 0 deletions
diff --git a/board/dhelectronics/dh_imx8mp/common.c b/board/dhelectronics/dh_imx8mp/common.c
new file mode 100644
index 00000000000..44456da681c
--- /dev/null
+++ b/board/dhelectronics/dh_imx8mp/common.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2022 Marek Vasut <marex@denx.de>
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm-generic/gpio.h>
+
+#include "lpddr4_timing.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+u8 dh_get_memcfg(void)
+{
+	struct gpio_desc gpio[4];
+	u8 memcfg = 0;
+	ofnode node;
+	int i, ret;
+
+	node = ofnode_path("/config");
+	if (!ofnode_valid(node)) {
+		printf("%s: no /config node?\n", __func__);
+		return BIT(2) | BIT(0);
+	}
+
+	ret = gpio_request_list_by_name_nodev(node,
+					      "dh,ram-coding-gpios",
+					      gpio, ARRAY_SIZE(gpio),
+					      GPIOD_IS_IN);
+	for (i = 0; i < ret; i++)
+		memcfg |= !!dm_gpio_get_value(&(gpio[i])) << i;
+
+	gpio_free_list_nodev(gpio, ret);
+
+	return memcfg;
+}