1 files changed, 150 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/spl_mmc.c b/arch/arm/cpu/armv7/omap-common/spl_mmc.c
new file mode 100644
index 0000000000..1d1e50c3c4
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap-common/spl_mmc.c
@@ -0,0 +1,150 @@
+/*
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ *
+ * Aneesh V <aneesh@ti.com>
+ *
+ * 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 <asm/u-boot.h>
+#include <asm/utils.h>
+#include <asm/arch/sys_proto.h>
+#include <mmc.h>
+#include <fat.h>
+#include <timestamp_autogenerated.h>
+#include <version_autogenerated.h>
+#include <asm/omap_common.h>
+#include <asm/arch/mmc_host_def.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_GENERIC_MMC
+int board_mmc_init(bd_t *bis)
+{
+	switch (omap_boot_device()) {
+	case BOOT_DEVICE_MMC1:
+		omap_mmc_init(0);
+		break;
+	case BOOT_DEVICE_MMC2:
+		omap_mmc_init(1);
+		break;
+	}
+	return 0;
+}
+#endif
+
+static void mmc_load_image_raw(struct mmc *mmc)
+{
+	u32 image_size_sectors, err;
+	const struct image_header *header;
+
+	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
+						sizeof(struct image_header));
+
+	/* read image header to find the image size & load address */
+	err = mmc->block_dev.block_read(0,
+			CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR, 1,
+			(void *)header);
+
+	if (err <= 0)
+		goto end;
+
+	spl_parse_image_header(header);
+
+	/* convert size to sectors - round up */
+	image_size_sectors = (spl_image.size + MMCSD_SECTOR_SIZE - 1) /
+				MMCSD_SECTOR_SIZE;
+
+	/* Read the header too to avoid extra memcpy */
+	err = mmc->block_dev.block_read(0,
+			CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR,
+			image_size_sectors, (void *)spl_image.load_addr);
+
+end:
+	if (err <= 0) {
+		printf("spl: mmc blk read err - %d\n", err);
+		hang();
+	}
+}
+
+static void mmc_load_image_fat(struct mmc *mmc)
+{
+	s32 err;
+	struct image_header *header;
+
+	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
+						sizeof(struct image_header));
+
+	err = fat_register_device(&mmc->block_dev,
+				CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION);
+	if (err) {
+		printf("spl: fat register err - %d\n", err);
+		hang();
+	}
+
+	err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME,
+				(u8 *)header, sizeof(struct image_header));
+	if (err <= 0)
+		goto end;
+
+	spl_parse_image_header(header);
+
+	err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME,
+				(u8 *)spl_image.load_addr, 0);
+
+end:
+	if (err <= 0) {
+		printf("spl: error reading image %s, err - %d\n",
+			CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME, err);
+		hang();
+	}
+}
+
+void spl_mmc_load_image(void)
+{
+	struct mmc *mmc;
+	int err;
+	u32 boot_mode;
+
+	mmc_initialize(gd->bd);
+	/* We register only one device. So, the dev id is always 0 */
+	mmc = find_mmc_device(0);
+	if (!mmc) {
+		puts("spl: mmc device not found!!\n");
+		hang();
+	}
+
+	err = mmc_init(mmc);
+	if (err) {
+		printf("spl: mmc init failed: err - %d\n", err);
+		hang();
+	}
+	boot_mode = omap_boot_mode();
+	if (boot_mode == MMCSD_MODE_RAW) {
+		debug("boot mode - RAW\n");
+		mmc_load_image_raw(mmc);
+	} else if (boot_mode == MMCSD_MODE_FAT) {
+		debug("boot mode - FAT\n");
+		mmc_load_image_fat(mmc);
+	} else {
+		puts("spl: wrong MMC boot mode\n");
+		hang();
+	}
+}