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-rw-r--r--common/spl/Makefile1
-rw-r--r--common/spl/spl_nand.c100
2 files changed, 101 insertions, 0 deletions
diff --git a/common/spl/Makefile b/common/spl/Makefile
index b61b438..b9c9fd8 100644
--- a/common/spl/Makefile
+++ b/common/spl/Makefile
@@ -16,6 +16,7 @@ LIB = $(obj)libspl.o
ifdef CONFIG_SPL_BUILD
COBJS-$(CONFIG_SPL_FRAMEWORK) += spl.o
COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += spl_ymodem.o
+COBJS-$(CONFIG_SPL_NAND_SUPPORT) += spl_nand.o
endif
COBJS := $(sort $(COBJS-y))
diff --git a/common/spl/spl_nand.c b/common/spl/spl_nand.c
new file mode 100644
index 0000000..61de5a4
--- /dev/null
+++ b/common/spl/spl_nand.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2011
+ * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+#include <config.h>
+#include <spl.h>
+#include <asm/io.h>
+#include <nand.h>
+
+void spl_nand_load_image(void)
+{
+ struct image_header *header;
+ int *src __attribute__((unused));
+ int *dst __attribute__((unused));
+
+ debug("spl: nand - using hw ecc\n");
+ nand_init();
+
+ /*use CONFIG_SYS_TEXT_BASE as temporary storage area */
+ header = (struct image_header *)(CONFIG_SYS_TEXT_BASE);
+#ifdef CONFIG_SPL_OS_BOOT
+ if (!spl_start_uboot()) {
+ /*
+ * load parameter image
+ * load to temp position since nand_spl_load_image reads
+ * a whole block which is typically larger than
+ * CONFIG_CMD_SPL_WRITE_SIZE therefore may overwrite
+ * following sections like BSS
+ */
+ nand_spl_load_image(CONFIG_CMD_SPL_NAND_OFS,
+ CONFIG_CMD_SPL_WRITE_SIZE,
+ (void *)CONFIG_SYS_TEXT_BASE);
+ /* copy to destintion */
+ for (dst = (int *)CONFIG_SYS_SPL_ARGS_ADDR,
+ src = (int *)CONFIG_SYS_TEXT_BASE;
+ src < (int *)(CONFIG_SYS_TEXT_BASE +
+ CONFIG_CMD_SPL_WRITE_SIZE);
+ src++, dst++) {
+ writel(readl(src), dst);
+ }
+
+ /* load linux */
+ nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
+ CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+ spl_parse_image_header(header);
+ if (header->ih_os == IH_OS_LINUX) {
+ /* happy - was a linux */
+ nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
+ spl_image.size, (void *)spl_image.load_addr);
+ nand_deselect();
+ return;
+ } else {
+ puts("The Expected Linux image was not "
+ "found. Please check your NAND "
+ "configuration.\n");
+ puts("Trying to start u-boot now...\n");
+ }
+ }
+#endif
+#ifdef CONFIG_NAND_ENV_DST
+ nand_spl_load_image(CONFIG_ENV_OFFSET,
+ CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+ spl_parse_image_header(header);
+ nand_spl_load_image(CONFIG_ENV_OFFSET, spl_image.size,
+ (void *)spl_image.load_addr);
+#ifdef CONFIG_ENV_OFFSET_REDUND
+ nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND,
+ CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+ spl_parse_image_header(header);
+ nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, spl_image.size,
+ (void *)spl_image.load_addr);
+#endif
+#endif
+ /* Load u-boot */
+ nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
+ CONFIG_SYS_NAND_PAGE_SIZE, (void *)header);
+ spl_parse_image_header(header);
+ nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
+ spl_image.size, (void *)spl_image.load_addr);
+ nand_deselect();
+}