[U-Boot] [PATCH 2/2] SPL: ONENAND: Support SPL to boot u-boot from OneNAND.

[Enric Balletbo i Serra]

From: Enric Balletbo i Serra <eballetbo at iseebcn.com>

This patch will allow use SPL to boot an u-boot from the OneNAND.

Tested with IGEPv2 board with a OneNAND from Numonyx.

Signed-off-by: Enric Balletbo i Serra <eballetbo at iseebcn.com>
---
 arch/arm/cpu/armv7/omap3/board.c |    2 +-
 common/spl/Makefile              |    1 +
 common/spl/spl.c                 |    5 +++++
 common/spl/spl_onenand.c         |   45 ++++++++++++++++++++++++++++++++++++++
 4 files changed, 52 insertions(+), 1 deletion(-)
 create mode 100644 common/spl/spl_onenand.c

diff --git a/arch/arm/cpu/armv7/omap3/board.c b/arch/arm/cpu/armv7/omap3/board.c
index 89c587e..63063c8 100644
--- a/arch/arm/cpu/armv7/omap3/board.c
+++ b/arch/arm/cpu/armv7/omap3/board.c
@@ -110,7 +110,7 @@ int board_mmc_init(bd_t *bis)
 
 void spl_board_init(void)
 {
-#ifdef CONFIG_SPL_NAND_SUPPORT
+#if defined(CONFIG_SPL_NAND_SUPPORT) || defined(CONFIG_SPL_ONENAND_SUPPORT)
 	gpmc_init();
 #endif
 #ifdef CONFIG_SPL_I2C_SUPPORT
diff --git a/common/spl/Makefile b/common/spl/Makefile
index 5698a23..da2afc1 100644
--- a/common/spl/Makefile
+++ b/common/spl/Makefile
@@ -18,6 +18,7 @@ COBJS-$(CONFIG_SPL_FRAMEWORK) += spl.o
 COBJS-$(CONFIG_SPL_NOR_SUPPORT) += spl_nor.o
 COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += spl_ymodem.o
 COBJS-$(CONFIG_SPL_NAND_SUPPORT) += spl_nand.o
+COBJS-$(CONFIG_SPL_ONENAND_SUPPORT) += spl_onenand.o
 COBJS-$(CONFIG_SPL_NET_SUPPORT) += spl_net.o
 endif
 
diff --git a/common/spl/spl.c b/common/spl/spl.c
index ff9ba7b..c584247 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -197,6 +197,11 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
 		spl_nand_load_image();
 		break;
 #endif
+#ifdef CONFIG_SPL_ONENAND_SUPPORT
+	case BOOT_DEVICE_ONE_NAND:
+		spl_onenand_load_image();
+		break;
+#endif
 #ifdef CONFIG_SPL_NOR_SUPPORT
 	case BOOT_DEVICE_NOR:
 		spl_nor_load_image();
diff --git a/common/spl/spl_onenand.c b/common/spl/spl_onenand.c
new file mode 100644
index 0000000..247f97b
--- /dev/null
+++ b/common/spl/spl_onenand.c
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2011
+ * Corscience GmbH & Co. KG - Simon Schwarz <schwarz at 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 <onenand_uboot.h>
+
+void spl_onenand_load_image(void)
+{
+	struct image_header *header;
+	int *src __attribute__((unused));
+	int *dst __attribute__((unused));
+
+	debug("spl: onenand\n");
+
+	/*use CONFIG_SYS_TEXT_BASE as temporary storage area */
+	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE);
+	/* Load u-boot */
+	onenand_spl_load_image(CONFIG_SYS_ONENAND_U_BOOT_OFFS,
+		CONFIG_SYS_ONENAND_PAGE_SIZE, (void *)header);
+	spl_parse_image_header(header);
+	onenand_spl_load_image(CONFIG_SYS_ONENAND_U_BOOT_OFFS,
+		spl_image.size, (void *)spl_image.load_addr);
+}
-- 
1.7.10.4