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

source/bootloader/u-boot-2020.01/board/freescale/m5208evbe/Kconfig

@@ -0,0 +1,15 @@
+if TARGET_M5208EVBE
+
+config SYS_CPU
+	default "mcf52x2"
+
+config SYS_BOARD
+	default "m5208evbe"
+
+config SYS_VENDOR
+	default "freescale"
+
+config SYS_CONFIG_NAME
+	default "M5208EVBE"
+
+endif

source/bootloader/u-boot-2020.01/board/freescale/m5208evbe/MAINTAINERS

@@ -0,0 +1,6 @@
+M5208EVBE BOARD
+#M:	-
+S:	Maintained
+F:	board/freescale/m5208evbe/
+F:	include/configs/M5208EVBE.h
+F:	configs/M5208EVBE_defconfig

source/bootloader/u-boot-2020.01/board/freescale/m5208evbe/Makefile

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+
+obj-y	= m5208evbe.o

source/bootloader/u-boot-2020.01/board/freescale/m5208evbe/m5208evbe.c

@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 2004-2008, 2012 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ */
+
+#include <config.h>
+#include <common.h>
+#include <asm/immap.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkboard(void)
+{
+	puts("Board: ");
+	puts("Freescale M5208EVBe\n");
+	return 0;
+};
+
+int dram_init(void)
+{
+	sdram_t *sdram = (sdram_t *)(MMAP_SDRAM);
+	u32 dramsize, i;
+
+	dramsize = CONFIG_SYS_SDRAM_SIZE * 0x100000;
+
+	for (i = 0x13; i < 0x20; i++) {
+		if (dramsize == (1 << i))
+			break;
+	}
+	i--;
+
+	out_be32(&sdram->cs0, CONFIG_SYS_SDRAM_BASE | i);
+#ifdef CONFIG_SYS_SDRAM_BASE1
+	out_be32(&sdram->cs1, CONFIG_SYS_SDRAM_BASE | i);
+#endif
+	out_be32(&sdram->cfg1, CONFIG_SYS_SDRAM_CFG1);
+	out_be32(&sdram->cfg2, CONFIG_SYS_SDRAM_CFG2);
+
+	udelay(500);
+
+	/* Issue PALL */
+	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
+	asm("nop");
+
+	/* Perform two refresh cycles */
+	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
+	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
+	asm("nop");
+
+	/* Issue LEMR */
+	out_be32(&sdram->mode, CONFIG_SYS_SDRAM_MODE);
+	asm("nop");
+	out_be32(&sdram->mode, CONFIG_SYS_SDRAM_EMOD);
+	asm("nop");
+
+	out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
+	asm("nop");
+
+	out_be32(&sdram->ctrl,
+		(CONFIG_SYS_SDRAM_CTRL & ~0x80000000) | 0x10000F00);
+	asm("nop");
+
+	udelay(100);
+
+	gd->ram_size = dramsize;
+
+	return 0;
+};
+
+int testdram(void)
+{
+	/* TODO: XXX XXX XXX */
+	printf("DRAM test not implemented!\n");
+
+	return (0);
+}