1 files changed, 72 insertions, 0 deletions
diff --git a/board/compulab/common/splash.c b/board/compulab/common/splash.c
new file mode 100644
index 00000000000..49ed49b81e9
--- /dev/null
+++ b/board/compulab/common/splash.c
@@ -0,0 +1,72 @@
+/*
+ * (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
+ *
+ * Authors: Igor Grinberg <grinberg@compulab.co.il>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <nand.h>
+#include <bmp_layout.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_CMD_NAND
+static int splash_load_from_nand(u32 bmp_load_addr, int nand_offset)
+{
+	struct bmp_header *bmp_hdr;
+	int res;
+	size_t bmp_size, bmp_header_size = sizeof(struct bmp_header);
+
+	if (bmp_load_addr + bmp_header_size >= gd->start_addr_sp)
+		goto splash_address_too_high;
+
+	res = nand_read_skip_bad(&nand_info[nand_curr_device],
+			nand_offset, &bmp_header_size,
+			NULL, nand_info[nand_curr_device].size,
+			(u_char *)bmp_load_addr);
+	if (res < 0)
+		return res;
+
+	bmp_hdr = (struct bmp_header *)bmp_load_addr;
+	bmp_size = le32_to_cpu(bmp_hdr->file_size);
+
+	if (bmp_load_addr + bmp_size >= gd->start_addr_sp)
+		goto splash_address_too_high;
+
+	return nand_read_skip_bad(&nand_info[nand_curr_device],
+			nand_offset, &bmp_size,
+			NULL, nand_info[nand_curr_device].size,
+			(u_char *)bmp_load_addr);
+
+splash_address_too_high:
+	printf("Error: splashimage address too high. Data overwrites U-Boot "
+		"and/or placed beyond DRAM boundaries.\n");
+
+	return -1;
+}
+#else
+static inline int splash_load_from_nand(u32 bmp_load_addr, int nand_offset)
+{
+	return -1;
+}
+#endif /* CONFIG_CMD_NAND */
+
+int cl_splash_screen_prepare(int nand_offset)
+{
+	char *env_splashimage_value;
+	u32 bmp_load_addr;
+
+	env_splashimage_value = getenv("splashimage");
+	if (env_splashimage_value == NULL)
+		return -1;
+
+	bmp_load_addr = simple_strtoul(env_splashimage_value, 0, 16);
+	if (bmp_load_addr == 0) {
+		printf("Error: bad splashimage address specified\n");
+		return -1;
+	}
+
+	return splash_load_from_nand(bmp_load_addr, nand_offset);
+}