[PATCH v2 1/3] sifive: fu540: Add sample SD gpt partition layout

[Jagan Teki <jagan@amarulasolutions.com>]

This is a sample GPT partition layout for SD card,
right now three important partitions are added to
make the system bootable.

partition layout:

Part    Start LBA       End LBA         Name
        Attributes
        Type GUID
        Partition GUID
  1     0x00000022      0x00000821      "loader1"
        attrs:  0x0000000000000000
        type:   5b193300-fc78-40cd-8002-e86c45580b47
        guid:   cbcbef44-e627-42bc-b134-93b6f3784b8c
  2     0x00000822      0x00002821      "loader2"
        attrs:  0x0000000000000000
        type:   2e54b353-1271-4842-806f-e436d6af6985
        guid:   f54eba28-d8de-4852-978d-1a673777e2ae
  3     0x00002822      0x00020821      "rootfs"
        attrs:  0x0000000000000004
        type:   0fc63daf-8483-4772-8e79-3d69d8477de4
        type:   linux
        guid:   9561df46-8d55-4799-a83b-cfee9ef6ff93

Note:
- loader1 would be fsbl or spl
- loader2 would be U-Boot or U-Boot proper

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- update the partition table

Note: On top of https://patchwork.ozlabs.org/cover/1263480/

 board/sifive/fu540/Kconfig     |  2 ++
 include/configs/sifive-fu540.h | 13 +++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/board/sifive/fu540/Kconfig b/board/sifive/fu540/Kconfig
index 5c67aab96a..43d01bab8d 100644
--- a/board/sifive/fu540/Kconfig
+++ b/board/sifive/fu540/Kconfig
@@ -32,6 +32,8 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	imply CMD_EXT4
 	imply CMD_FAT
 	imply CMD_FS_GENERIC
+	imply CMD_GPT
+	imply PARTITION_TYPE_GUID
 	imply CMD_NET
 	imply CMD_PING
 	imply CLK_SIFIVE
diff --git a/include/configs/sifive-fu540.h b/include/configs/sifive-fu540.h
index ef3ae9b650..72c841eb9b 100644
--- a/include/configs/sifive-fu540.h
+++ b/include/configs/sifive-fu540.h
@@ -47,6 +47,15 @@
 
 #include <config_distro_bootcmd.h>
 
+#define TYPE_GUID_LOADER1	"5B193300-FC78-40CD-8002-E86C45580B47"
+#define TYPE_GUID_LOADER2	"2E54B353-1271-4842-806F-E436D6AF6985"
+#define TYPE_GUID_SYSTEM	"0FC63DAF-8483-4772-8E79-3D69D8477DE4"
+
+#define PARTS_DEFAULT \
+	"name=loader1,start=17K,size=1M,type=${type_guid_gpt_loader1};" \
+	"name=loader2,size=4MB,type=${type_guid_gpt_loader2};" \
+	"name=system,size=-,bootable,type=${type_guid_gpt_system};"
+
 #define CONFIG_EXTRA_ENV_SETTINGS \
 	"fdt_high=0xffffffffffffffff\0" \
 	"initrd_high=0xffffffffffffffff\0" \
@@ -55,6 +64,10 @@
 	"scriptaddr=0x88100000\0" \
 	"pxefile_addr_r=0x88200000\0" \
 	"ramdisk_addr_r=0x88300000\0" \
+	"type_guid_gpt_loader1=" TYPE_GUID_LOADER1 "\0" \
+	"type_guid_gpt_loader2=" TYPE_GUID_LOADER2 "\0" \
+	"type_guid_gpt_system=" TYPE_GUID_SYSTEM "\0" \
+	"partitions=" PARTS_DEFAULT "\0" \
 	BOOTENV
 
 #define CONFIG_PREBOOT \
-- 
2.17.1