Add environment variables to boot kernel from a filesystem contained in
the 2nd UFS LUN. The user can boot from a ufs filesystem just by
entering the following commands.
=> setenv boot ufs
=> boot
Signed-off-by: Faiz Abbas <faiz_ab...@ti.com>
---
include/configs/j721e_evm.h | 4 +++-
include/environment/ti/ufs.h | 33 +++++++++++++++++++++++++++++++++
2 files changed, 36 insertions(+), 1 deletion(-)
create mode 100644 include/environment/ti/ufs.h
diff --git a/include/configs/j721e_evm.h b/include/configs/j721e_evm.h
index dbe226b46d..73547b5db1 100644
--- a/include/configs/j721e_evm.h
+++ b/include/configs/j721e_evm.h
@@ -13,6 +13,7 @@
#include <config_distro_bootcmd.h>
#include <environment/ti/mmc.h>
#include <environment/ti/k3_rproc.h>
+#include <environment/ti/ufs.h>
#define CONFIG_ENV_SIZE (128 << 10)
@@ -103,7 +104,8 @@
DEFAULT_MMC_TI_ARGS \
EXTRA_ENV_J721E_BOARD_SETTINGS \
EXTRA_ENV_J721E_BOARD_SETTINGS_MMC \
- EXTRA_ENV_RPROC_SETTINGS
+ EXTRA_ENV_RPROC_SETTINGS \
+ DEFAULT_UFS_TI_ARGS
/* Now for the remaining common defines */
#include <configs/ti_armv7_common.h>
diff --git a/include/environment/ti/ufs.h b/include/environment/ti/ufs.h
new file mode 100644
index 0000000000..d457e20308
--- /dev/null
+++ b/include/environment/ti/ufs.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * Environment variable definitions for UFS on TI boards.
+ */
+
+#ifndef __TI_UFS_H
+#define __TI_UFS_H
+
+#define DEFAULT_UFS_TI_ARGS \
+ "scsirootfstype=ext4 rootwait\0" \
+ "ufs_finduuid=part uuid scsi ${bootpart} uuid\0" \
+ "args_ufs=setenv devtype scsi;setenv bootpart 1:1;" \
+ "run ufs_finduuid;setenv bootargs console = ${console} " \
+ "${optargs}" \
+ "root=PARTUUID=${uuid} rw " \
+ "rootfstype=${scsirootfstype};" \
+ "setenv devtype scsi;" \
+ "setenv bootpart 1:1\0" \
+ "init_ufs=ufs init; scsi scan; run args_ufs\0" \
+ "get_kern_ufs=load ${devtype} ${bootpart} ${loadaddr}
${bootdir}/${name_kern}\0" \
+ "get_fdt_ufs=load ${devtype} ${bootpart} ${fdtaddr}
${bootdir}/${fdtfile}\0" \
+ "get_overlay_ufs=" \
+ "fdt address ${fdtaddr};" \
+ "fdt resize 0x100000;" \
+ "for overlay in $name_overlays;" \
+ "do;" \
+ "load scsi ${bootpart} ${overlayaddr} ${bootdir}/${overlay} &&
" \
+ "fdt apply ${overlayaddr};" \
+ "done;\0"
+
+#endif
--
2.19.2
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