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

source/bootloader/u-boot-2020.01/arch/sh/lib/board.c

@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2016 Vladimir Zapolskiy <vz@mleia.com>
+ */
+
+#include <common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+	gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
+				    CONFIG_SYS_SDRAM_SIZE);
+
+	return 0;
+}
+
+void relocate_code(ulong start_addr_sp, gd_t *new_gd, ulong relocaddr)
+{
+	void (*reloc_board_init_r)(gd_t *gd, ulong dest) = board_init_r;
+
+	if (new_gd->reloc_off) {
+		memcpy((void *)new_gd->relocaddr,
+		       (void *)(new_gd->relocaddr - new_gd->reloc_off),
+		       new_gd->mon_len);
+
+		reloc_board_init_r += new_gd->reloc_off;
+	}
+
+	__asm__ __volatile__("mov.l %0, r15\n" : : "m" (new_gd->start_addr_sp));
+
+	while (1)
+		reloc_board_init_r(new_gd, 0x0);
+}